Patent application number | Description | Published |
20090196219 | METHODS AND APPARATUS FOR QUALITY OF SERVICE-BASED UPLINK POLLING SCHEMES - A method for allocating polling bandwidth may include generating polling tokens corresponding to connections maintained by a base station. The polling tokens may be generated at configurable time intervals. The method may also include assigning priorities to the polling tokens. The priority of a polling token may depend on a scheduling type of a corresponding connection. The method may also include allocating polling bandwidth to the connections that correspond to the highest priority polling tokens when uplink bandwidth is available to allocate for polling. | 08-06-2009 |
20090196262 | METHODS AND APPARATUS FOR INTRA-USER QUALITY OF SERVICE UPLINK SCHEDULING - A method for intra-user quality of service (QoS) uplink scheduling may include determining scheduling types associated with active uplink connections that are maintained by the subscriber station. The method may also include determining QoS parameters corresponding to the different scheduling types. The method may also include scheduling the active uplink connections for uplink transmissions based on the different scheduling types and their corresponding QoS parameters. | 08-06-2009 |
20090197528 | METHODS AND SYSTEMS FOR CONFIGURATION AND ACTIVATION OF POWER SAVING CLASSES BY A MOBILE STATION IN A SLEEP MODE - Techniques presented herein allow connections with different (albeit possibly similar) scheduling or data delivery services to be aggregated (or “bundled”) into groups, with each group assigned a common Power Savings Class Type. Bundling different connections into common PSC types may reduce the overall number of different sleep windows for active connections, which may help reduce overall power consumption. For example, by automatically activating different PSC types (for different bundles of connections), the reduced number of sleep windows may overlap in a manner that results in the MS spending more overall time in a low power state than when conventional “unbundled” PSC schemes are utilized. | 08-06-2009 |
20090197608 | SIGNALING OVERHEAD REDUCTION METHODS AND SYSTEMS USING SUB-DL-UL-MAP AND HARQ-MAP IN MOBILE WIMAX - Certain embodiments of the present disclosure may allow WiMAX signaling overhead to be reduced by sending burst allocation information to MSs using messages that may be transmitted using more efficient modulation coding schemes (MCSs) than that allowed for DL-MAP and UL-MAP messages. For example, burst allocation information may be sent in SUB-DL-UL-MAP or HARQ-MAP messages that may be encoded with selectable MCSs that result in higher data rate than an MCS used for conventional DL-MAP and UL-MAP messages. For certain embodiments, MSs may be partitioned into groups based on CINR and the burst allocation information for each group may be transmitted using an MCS that is appropriate for that group based on the CINR for MSs in that group. | 08-06-2009 |
20090197611 | MEHTODS AND SYSTEMS FOR SUBSCRIBER STATION-BASED ADMISSION CONTROL - A method for subscriber station-based admission control may include determining that there is demand for a new connection at the subscriber station. The method may also include determining whether the new connection should be admitted based on resource availability. The method may also include sending a request for the new connection to a base station if it is determined that the new connection should be admitted. | 08-06-2009 |
20090245227 | METHODS AND APPARATUS FOR UPLINK FRAME SYNCHRONIZATION IN A SUBSCRIBER STATION - A method for uplink frame synchronization in a subscriber station may include recording a first time stamp corresponding to a first downlink frame and recording a second time stamp corresponding to a second downlink frame. The first time stamp and the second time stamp may be used to determine a propagation delay change. Uplink transmission timing may be adjusted based on the propagation delay change that is determined. | 10-01-2009 |
20090247087 | METHODS AND APPARATUS FOR MEASURING ROUND-TRIP DELAY AT A MOBILE STATION - A method for measuring round-trip delay at a mobile station may include determining a first time difference between two different types of frames at a base station. The method may also include determining a second time difference between the two different types of frames at a mobile station. The method may also include calculating the round-trip delay based on the first time difference and the second time difference. | 10-01-2009 |
20090249172 | METHODS AND APPARATUS FOR IMPROVED DECODING OF BURSTS THAT INCLUDE MULTIPLE CONCATENATED PROTOCOL DATA UNITS - A corrupted protocol data unit (PDU) within a received burst of data may be identified. The received burst of data may include multiple concatenated PDUs. The received burst of data may continue to be processed despite the identification of the corrupted PDU. A next PDU in the received burst of data may be identified after the corrupted PDU is identified. | 10-01-2009 |
20090257372 | METHODS AND APPARATUS FOR IMPROVED DECODING OF HYBRID AUTOMATIC REPEAT REQUEST TRANSMISSIONS - A method for improved decoding of hybrid automatic repeat request (H-ARQ) transmissions may include attempting to verify a physical layer (PHY) cyclic redundancy check (CRC) for a candidate H-ARQ encoder packet. If the PHY CRC is not verified, medium access control layer protocol data units (MPDUs) may be identified in the candidate H-ARQ encoder packet, and attempts may be made to verify a medium access control layer (MAC) CRC for each MPDU in the candidate H-ARQ encoder packet. | 10-15-2009 |
20090279503 | SYSTEMS AND METHODS FOR MULTIMODE WIRELESS COMMUNICATION HANDOFF - Methods and apparatus for base-station-assisted handover between WiMAX (Worldwide Interoperability for Microwave Access) and CDMA (Code Division Multiple Access) EVDO (Evolution-Data Optimized) or 1xRTT (one times Radio Transmission Technology, or 1x) networks during normal operation of a dual-mode mobile station (MS) are provided. By having a base station (BS) using one radio access technology (RAT) broadcast information about a BS in a neighboring cell employing a different RAT, the methods and apparatus may improve service continuity during handover. | 11-12-2009 |
20090279504 | SYSTEMS AND METHODS FOR MULTIMODE WIRELESS COMMUNICATION HANDOFF - Methods and apparatus for autonomous handover between WiMAX (Worldwide Interoperability for Microwave Access) and CDMA (Code Division Multiple Access) EVDO (Evolution-Data Optimized) or 1×RTT (one times Radio Transmission Technology, or 1×) networks during normal operation of a dual-mode mobile station (MS) are provided. The methods and apparatus may improve service continuity during handover and need not require any changes to the WiMAX or CDMA standards. | 11-12-2009 |
20090279517 | METHODS AND SYSTEMS FOR MULTI-MODE TERMINAL SCANNING - Certain embodiments of the present disclosure provide a method for scanning for paging messages in a second radio access technology (RAT) network, such as a CDMA network, while connected to a first RAT network, such as a WiMAX network. For certain embodiments, an enhanced scanning request message may facilitate establishing a scanning cycle in the first RAT that aligns with a paging cycle of the second RAT. | 11-12-2009 |
20090280802 | SYSTEMS AND METHODS FOR MULTI-MODE TERMINAL OPERATIONS IN OVERLAID NETWORKS - Certain embodiments of the present disclosure provide a method for communicating by a multi-mode mobile station (MS) with first and second networks via first and second radio access technologies (RATs). The method generally includes measuring a time offset between frames of the first RAT and frames of the second RAT while maintaining a connection with the first network via the first RAT, sending a request to a base station of the first network to establish scan periods during which the MS may switch to the second network to monitor for paging messages, and switching to the second network to monitor for paging messages during a scan period without terminating the connection with the first network. The first RAT may comprise, for example, WiMAX, while the second RAT may comprise, for example, CDMA. | 11-12-2009 |
20090280812 | SYSTEMS AND METHODS FOR MULTIMODE WIRELESS COMMUNICATION HANDOFF - Methods and apparatus for easily and quickly returning to a first radio access technology (RAT) network when handover to a second RAT network is cancelled are provided. The methods and apparatus may involve a mobile station (MS) entering idle mode before handover to the second RAT network is completed and requesting a serving base station (BS) to retain MS service and operational information, as well as service flow state information. In this manner, should handover to the second RAT network be cancelled before completion, a re-entry to the first RAT network may be expeditiously performed using the retained MS information. | 11-12-2009 |
20090285109 | METHODS AND SYSTEMS FOR ADAPTIVE EFFECTIVE CINR REPORTING IN A WIRELESS COMMUNICATION SYSTEM - Embodiments of the present disclosure allow a MS to dynamically adjust the mapping of a physical CINR measurement to an effective CINR. For some embodiments, an effective CINR value may be generated based on a physical CINR value and a measured packet error rate (PER) over one or more time periods. By dynamically adjusting the effective CINR reported back to a BS, the MS may allow the BS to select a coding scheme that effectively compensates for changes in channel conditions, which may improve system performance. | 11-19-2009 |
20090285164 | METHODS AND SYSTEMS OF IMPROVED SUCCESS RATE FOR DECODING DOWNLINK MAP AND UPLINK MAP IES IN MOBILE WIMAX MOBILE - Methods and apparatus for decoding MAP information elements (MAP IEs) in an orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) frame, even when the received downlink (DL) or uplink (UL) MAP message cyclic redundancy check (CRC) fails, may be provided. By continuing to parse the MAP IEs in the MAP message despite a CRC failure in the MAP message or a data burst, the packet error rate may be reduced, and the wireless system throughput may be increased. | 11-19-2009 |
20090285177 | METHODS AND SYSTEMS FOR ACCELERATING WIRELESS COMMUNICATION HANDOVER - Methods and apparatus for ranging with one or more neighboring sectors during normal operation of a mobile station (MS) with its serving sector are provided. The ranging results may be frequently updated in an effort to accelerate the handover process to another base station (BS) providing coverage for one of the neighboring sectors. | 11-19-2009 |
20090285178 | METHODS AND SYSTEMS FOR MOBILE WIMAX THREE-WAY DOWNLINK CONCURRENT PROCESSING AND THREE-WAY HANDOVER - Methods and apparatus for establishing multiple connections between a wireless device and multiple base stations and transferring data using these connections via different segments of an orthogonal frequency division multiple access (OFDMA) frame are provided. The multiple connections may be used for multi-way (e.g., three-way) concurrent processing, multi-way (e.g., three-way) handover, or a hybrid between concurrent processing and multi-way handover in an effort to increase data throughput for the wireless device. | 11-19-2009 |
20090285186 | METHODS AND SYSTEMS FOR CDMA NETWORK SWITCHING NOTIFICATION IN A WIMAX NETWORK - A method and apparatus for allowing a dual-mode mobile device to communicate with a CDMA network without switching from an OFDMA network are provided. For certain embodiments, an OFDMA gateway component may serve as an interface between the OFDMA network and CDMA network, detecting a CDMA message targeting the mobile device and, in response, generating an OFDMA message containing information regarding the CDMA message. | 11-19-2009 |
20090296616 | METHODS AND SYSTEMS FOR USING A POWER SAVINGS MODE DURING VOICE OVER INTERNET PROTOCOL COMMUNICATION - Techniques presented herein allow a wireless device, (e.g., a mobile station, MS) to automatically enter a low power state when detecting silence based on monitored VoIP transmissions. Automatically entering the low power state may help the wireless device conserve power. In addition, for certain types of scheduling services in which bandwidth is allocated to the wireless device from within a system (e.g., Unsolicited Grant Service or extended real time polling service), automatically entering the low power state when silence is detected may also free up bandwidth (i.e., that would have otherwise been allocated to the wireless device entering the low power state) for allocation to other wireless devices in the system. | 12-03-2009 |
20090296934 | METHODS AND SYSTEMS FOR MAINTAINING SECURITY KEYS FOR WIRELESS COMMUNICATION - Certain embodiments allow security keys to be maintained across mobile device states, or communication events, such as hand-over, and system idle and sleep power savings modes. By monitoring the lifetime of security keys, keys may be refreshed in an effort to ensure key lifetimes will not expire during a hand-over process or other device unavailable state. | 12-03-2009 |
20090298527 | METHODS AND APPARATUS FOR SAVING BATTERY POWER IN MOBILE STATIONS - A base station may be configured so that it operates in accordance with certain MAP transmission rules that may enable mobile stations to save battery power in certain situations. Upon receiving a MAP message, a mobile station may determine whether there is a burst allocated for the mobile station in the current frame by determining the value of at least one of the following: an idle users bit in the SUB-MAP pointer information element (IE), and a sleep users bit in the SUB-MAP pointer IE. The mobile station may discontinue processing of the MAP message and power down one or more components of the mobile station if there is not a burst allocated for the mobile station in the current frame. | 12-03-2009 |
20090315779 | METHODS AND SYSTEMS FOR FAST RANGING IN WIRELESS COMMUNICATION NETWORKS - A method for efficiently performing ranging in a wireless communication network may be implemented by a mobile station. The method may include sending a ranging code to a base station. The method may also include receiving a ranging response message from the base station. The method may also include determining whether a ranging failure condition is satisfied. The ranging failure condition may relate to something other than a duration of time. The method may further include re-sending the ranging code to the base station if the ranging failure condition is satisfied. | 12-24-2009 |
20090316806 | METHODS AND SYSTEMS FOR UTILIZING A MULTICAST/BROADCAST CID SCHEDULING MAC MANAGEMENT MESSAGE - Methods and systems for utilizing a multicast/broadcast connection identifier (CID) scheduling message in an orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) frame in an effort to bypass at least a portion of the Media Access Control (MAC) protocol data unit (PDU) parsing of the frame are provided. By bypassing at least a portion of the MAC PDU parsing of the OFDM/OFDMA frame (which may be in accordance with one or more standards of the IEEE 802.16 family of standards), a particular user terminal need not spend a lot of overhead in the CID filtering process, determining which MAC PDUs are intended to be processed by the MAC of that particular user terminal. Furthermore, for certain embodiments, a user terminal may power down related circuitry during the terminal's bypassing time period(s) of the OFDM/OFDMA frame in an effort to save power. | 12-24-2009 |
20090318154 | METHODS AND SYSTEMS FOR BACKGROUND SCANNING IN OFDMA MOBILE STATIONS - Certain embodiments provide techniques for background scanning in a wireless communication device receiving signals from multiple base stations using a background scanning processor separate from a receive processor. The techniques generally include buffering raw signal data from multiple base stations, forwarding the raw signal data to a receive baseband processor for decoding data from a first one of the base stations that is currently designated as a serving base station with an active connection to the wireless communications device, forwarding the raw signal data to a background scanning processor, separate from the receive baseband processor, and generating channel characteristics corresponding to the multiple base stations with the background scanning processor without interrupting the exchange of data with the first base station designated as the serving base station. | 12-24-2009 |
20090325608 | METHODS AND SYSTEMS FOR MULTI-MODE PAGING - Methods and apparatus for communicating with a multimode mobile station supporting multiple radio access technologies (RATs) are provided. For certain embodiments, when a paging request is received via a first RAT network, paging requests may be broadcast on all RATs supported by the mobile device. As a result, the mobile device may receive the paging request regardless of which RAT it used for a current network connection. | 12-31-2009 |
20100002579 | METHODS AND SYSTEMS FOR PRIORITY-BASED SERVICE REQUESTS, GRANTS FOR SERVICE ADMISSION AND NETWORK CONGESTION CONTROL - A method for priority-based network congestion control may be implemented by a network entity. The method may include determining one or more priorities associated with a service request that is being processed by the network entity. The method may also include determining resource availability. The method may also include determining whether to grant the service request based on the one or more priorities associated with the service request and the resource availability. | 01-07-2010 |
20100067433 | METHODS AND SYSTEMS FOR MULTI-MODE SIGNAL QUALITY REPORTING - Certain embodiments of the present disclosure provide a method for wireless communications by a multi-mode mobile station that supports communications with a plurality of radio access technologies (RATs). The RATs may include at least one short range RAT and at least one long range RAT. The method generally includes establishing a first connection with a first network via a short range RAT supported by the mobile station, taking signal quality measurements for one or more long range RAT supported by the mobile station, and transmitting the signal quality measurements via the first connection. | 03-18-2010 |
20100067448 | METHODS AND SYSTEMS FOR PARALLEL ACQUISITION OF SYSTEM INFORMATION FROM MULTIPLE BASE STATIONS - A method for parallel acquisition of system information from multiple base stations may be implemented by a mobile station. The method may include determining scheduled times for transmission of the system information from the multiple base stations based on parameters included in messages from the multiple base stations. The method may also include creating a schedule list that comprises the scheduled times. The method may further include tuning to the base stations at the scheduled times that are specified in the schedule list in order to receive the system information from the base stations. | 03-18-2010 |
20100067494 | METHODS AND SYSTEMS FOR IMPLEMENTING CDMA-BASED DEDICATED CONTROL CHANNELS IN AN OFDMA-BASED NETWORK - A method for efficiently transmitting control information may include allocating a portion of orthogonal frequency division multiple access (OFDMA) frames for transmission of a code division multiple access (CDMA) based signal. The CDMA-based signal may include data from one or more dedicated control channels. The method may also include converting the CDMA-based signal into a format that is suitable for transmission via OFDMA techniques. The method may also include transmitting the converted CDMA-based signal using a subset of available OFDMA subcarriers. | 03-18-2010 |
20100067515 | METHODS AND APPARATUS FOR FRAME NUMBER SYNCHRONIZATION IN WIRELESS COMMUNICATION NETWORKS - A method for frame number synchronization in a wireless communication network may be implemented by a base station. The method may include determining a current time from a timing source that is common to multiple other base stations. The method may also include determining a time offset between the current time and a reference time, wherein the base station and the multiple other base stations use the same reference time for determining the time offset. The method may also include determining a current frame number based on the time offset. | 03-18-2010 |
20100069070 | LOCATION-ASSISTED NETWORK ENTRY, SCAN AND HANDOVER - Methods and apparatus for using a location of a mobile station (MS) to assist network entry and initialization, scanning, and/or handover operations in a radio access technology (RAT), such as WiMAX (Worldwide Interoperability for Microwave Access), are provided. The location of the MS may be ascertained by determining the Global Positioning System (GPS) coordinates of the MS internally or by receiving the location from a GPS device external to the MS. Knowledge of the current or future location of the MS may reduce the amount of base station (BS) information transmitted to the MS; may reduce the power consumption and the amount of time spent during network entry, scanning, or handover; and may increase the bandwidth usage efficiency. | 03-18-2010 |
20100069094 | METHODS AND SYSTEMS FOR CELL RESELECTION IN IDLE MODE FOR A MOBILE WIMAX NETWORK - Certain embodiments of the present disclosure provide a technique for selecting a base station during a cell re-selection process in a manner that reduces the number of location updates sent by a mobile station. The technique may include determining a set of available base stations and selecting a base station from the set of available base stations based, at least in part, on paging group identifications (PGIDs) of the base stations in the set of available base stations. By giving preference to a base station with a PGID that matches the PGID of a current serving base station, a mobile station may avoid sending a location update. | 03-18-2010 |
20100069097 | METHODS AND APPARATUS FOR IMPLEMENTING SHORT MESSAGE SERVICE IN WIRELESS COMMUNICAITON NETWORKS - A method for implementing Short Message Service (SMS) in a wireless communication network may be implemented by a mobile station. The method may include sending mobile-originated SMS data while in idle mode. Ranging procedures may be used to send the mobile-originated SMS data. The method may also include receiving mobile-terminated SMS data while in the idle mode. Receiving the mobile-terminated SMS data may include receiving a broadcast page message from a base station, and the broadcast page message may include an identifier for the mobile station. | 03-18-2010 |
20100069128 | METHODS AND SYSTEMS FOR STATE-DRIVEN POWER SAVINGS FOR WIMAX - Methods and apparatus for conserving battery power in a mobile device for wireless communication by dynamically adjusting the clock frequency and/or the voltage of the device's processor according to the Media Access Control (MAC) layer state are provided. By using a higher clock frequency and/or a higher voltage for a normal operation state with large amounts of data traffic and lower clock frequencies and/or lower voltages for other MAC layer states (e.g., acquisition, network entry, and sleep/idle states), battery power may be conserved, thereby extending the time in which the device may operate between battery charging cycles. | 03-18-2010 |
20100070786 | ADAPTIVE METHOD FOR SYSTEM RE-ACQUISITION IN POWER SAVING MODE OPERATION IN A MOBILE WIMAX SYSTEM - Methods and apparatus for re-acquiring a WiMAX network after a relatively long power saving mode (e.g., sleep or idle mode) using a “pre-wakeup” scheme are provided. According to this pre-wakeup scheme, a mobile station (MS) may power up receiving circuitry to search for the current channel or, if unsuccessful, a neighbor channel. After a successful network search during sleep mode, the MS may return to sleep for the remainder of the sleep window until the circuitry is powered up a second time to wakeup and then listen for an expected message. By pre-waking up and searching before waking up for the expected message, the MS may counteract the effects of the potential error in the local oscillator frequency accumulated during the long sleep mode. In this manner, the message miss rate may be reduced, thereby saving power and extending the time in which the MS may operate between battery rechargings. | 03-18-2010 |
20100075677 | METHODS AND SYSTEMS FOR SELECTING A TARGET BS WITH THE BEST SERVICE SUPPORTED IN WIMAX HANDOVER - Methods and apparatus for notifying a mobile station (MS) of service flow parameters supported by neighbor base stations, such that the MS may select a suitable neighbor base station (BS) candidate (i.e., a target BS) for performing a handover are provided. The notification may occur via handover messages, such as a BS Handover Request (MOB_BSHO-REQ) message or a BS Handover Response (MOB_BSHO-RSP) message, with a Service Level Supported field added, indicating the service flow parameters supported by the neighbor BSs. In this manner, service quality levels of data exchanges may be maintained as an MS is handed over from one BS to another. | 03-25-2010 |
20100085935 | METHODS AND APPARATUS FOR SUPPORTING SHORT BURST MESSAGES OVER WIRELSS COMMUNICATION NETWORKS - A multi-mode mobile station may include an extended preferred roaming list (PRL). The extended PRL may include an extended system table. The extended system table may include at least one WiMAX extended system record and at least one CDMA extended system record. The extended PRL may also include an extended acquisition table. The extended acquisition table may also include at least one WiMAX extended acquisition record and at least one CDMA extended acquisition record. | 04-08-2010 |
20100085941 | METHODS AND APPARATUS FOR SCANNING FOR NEIGHBOR BASE STATIONS IN TIME SYNCHRONOUS WIRELESS COMMUNICATION SYSTEMS - A method for scanning for neighbor base stations in a time synchronous wireless communication system may be implemented by a mobile station. The method may include detecting a serving base station preamble index that is transmitted by a serving base station in a subcarrier subset during a frame. The method may also include using the detected serving base station preamble index to determine a signal quality measurement for the serving base station. The method may also include detecting at least one neighbor base station preamble index that is transmitted by a neighbor base station in another subcarrier subset transmitted during the same frame. The method may further include using the detected neighbor base station preamble index to determine a signal quality measurement for the neighbor base station. | 04-08-2010 |
20100087212 | Methods and Apparatus for Supporting Short Burst Messages Over Wireless Communication Networks - In accordance with a method for supporting short burst messages over a wireless communication network, mobile-originated short burst messages may be sent using at least one of a message-based approach and a service flow-based approach. Also, mobile-terminated short burst messages may be received using at least one of the message-based approach and the service flow-based approach. | 04-08-2010 |
20100091651 | METHODS AND SYSTEMS FOR BROADCASTING QOS INFORMATION TO ASSIST ADMISSION CONTROL IN WIRELESS COMMUNICATION SYSTEMS - A base station may broadcast quality of service (QoS) and loading information to mobile stations. When a mobile station determines that there is demand for a new traffic connection, the mobile station may select a base station from which to request the desired traffic connection based on the QoS information and the loading information received from one or more base stations. | 04-15-2010 |
20100093378 | METHODS AND SYSTEMS FOR POWER SAVING PAGING IN A MOBILE WIMAX SYSTEM - Certain embodiments of the present disclosure provide a paging schedule that may allow a WiMAX mobile device to return to a low power state prior to the end of a listening interval, thereby reducing power consumption. For certain embodiments, the paging schedule may be controlled by a base station using standardized paging messages, with paging messages targeting particular MSs in a group presented in an organized manner within a listening interval. An MS aware of this schedule may, thus, promptly return to a low power state prior to the end of a listening interval if it does not detect a paging message at its expected time within the listening interval. | 04-15-2010 |
20100099442 | METHODS AND APPARATUS FOR IMPLEMENTING SHORT MESSAGE SERVICE (SMS) IN WIMAX SYSTEMS - In accordance with a method for implementing Short Message Service (SMS) in a WiMAX network, a mobile station may send a mobile station SMS request message to a base station. The mobile station SMS request message may include mobile-originated SMS data. In response, the base station may send a base station SMS response message back to the mobile station. For mobile-terminated SMS data, the base station may send a base station SMS request message to the mobile station. The base station SMS request message may include the mobile-terminated SMS data. In response, the mobile station may send a mobile station SMS response message to the base station. Ranging procedures and medium access control (MAC) management messages may be used to allocate bandwidth for the various messages. | 04-22-2010 |
20100103848 | METHODS AND SYSTEMS FOR DIVERSITY IDLE MODE IN A MOBILE STATION - Certain embodiments of the present disclosure may allow a mobile station (MS) to monitor the paging interval of a serving base station (BS) as well as one or more neighboring BSs with sufficient signal strength or signal quality. Monitoring the paging intervals of multiple BSs may help improve paging success rate. | 04-29-2010 |
20100105388 | METHODS AND SYSTEMS FOR PROACTIVELY REQUESTING NEIGHBOR BASE STATION INFORMATION - Certain embodiments of the present disclosure allow a mobile station (MS) to proactively request neighbor base station information from a serving base station, for example, if a mobile neighbor advertisement (MOB_NBR-ADV) message is not received (or expected) in a predetermined time period. | 04-29-2010 |
20100105389 | METHODS AND SYSTEMS FOR PROACTIVE IDLE MODE HANDOFF - Certain embodiments of the present disclosure provide a technique that allows a mobile station (MS) to proactively perform a handover during an idle mode. For example, during listening intervals of an idle mode, the MS may scan neighboring base stations (BSs) and proactively handover to a target BS. The MS may be able to synchronize frame numbers with the target BS before missing a page. | 04-29-2010 |
20100105394 | METHODS AND SYSTEMS FOR SELECTIVE DATA COMMUNICATIONS FOR MULTI-MODE DEVICES - A method and apparatus for selectively utilizing short-range radio access technologies (RATs) when available to connect a multi-mode wireless device to a network are provided. | 04-29-2010 |
20100105449 | METHODS AND SYSTEMS TO PROLONG MOBILE STATION OPERATION DURING LOW BATTERY POWER - Certain embodiments of the present disclosure allow a mobile station to activate a sleep mode in order to reduce power consumption when the residual battery capacity is low. Certain embodiments of the present disclosure also provide techniques for adaptive power saving applied during an idle mode operation. | 04-29-2010 |
20100111214 | METHODS AND SYSTEMS FOR INTER-RAT HANDOVER IN MULTI-MODE MOBILE STATION - Methods provided may generally include sending a BS of a first RAT a request message indicating a set of MIMO resources to reallocate; during a scan duration, communicating with the BS of the first RAT using non-reallocated MIMO resources and communicating with a BS of a second RAT using reallocated MIMO resources; and during a normal duration, communicating with the BS of the first RAT using the reallocated and non-reallocated MIMO resources. Apparatus provided may generally include logic for receiving a request message indicating a set of MIMO resources of the MS to reallocate; logic for, during a scan duration, communicating with the MS in a first transmission mode assuming the use of only non-reallocated MIMO resources by the MS; and logic for, during a normal duration, communicating with the MS in a second transmission mode assuming the use of the reallocated and non-reallocated MIMO resources by the MS. | 05-06-2010 |
20100124899 | METHODS AND SYSTEMS FOR EMERGENCY CALL HANDLING WITH POSITION LOCATION OVER COMMUNICATION NETWORKS - Certain embodiments of the present disclosure relate to methods for handling an emergency call along with its position location in the WiMAX network, and for performing a handover of the emergency call for a multi-mode mobile station that supports multiple wireless standards. | 05-20-2010 |
20100124901 | METHODS AND SYSTEMS FOR EMERGENCY CALL HANDLING WITH POSITION LOCATION OVER COMMUNICATION NETWORKS - Certain embodiments of the present disclosure relate to methods for handling an emergency call along with its position location in the WiMAX network, and for performing a handover of the emergency call for a multi-mode mobile station that supports multiple wireless standards. | 05-20-2010 |
20100124924 | GPS-ASSISTED CELL SELECTION FOR MOBILE DEVICES - Methods and apparatus for using a location of a mobile station (MS) and information about neighbor base stations (BSs) to assist network entry and initialization, scanning, and/or handover operations are provided. The location of the MS may be ascertained by determining the Global Positioning System (GPS) coordinates of the MS internally or by receiving the location from, e.g., a GPS device external to the MS. The information about neighbor BSs may be retrieved from a BS information database based on the location of the MS. The BS information database may reside within the MS, be broadcast periodically to the MS in an effort to update the MS's internal database, or be stored in the network operator's database. Knowledge of the MS's location and information about neighbor BSs may reduce the time spent during network entry, scanning, or handover, and thereby, power consumption; and may increase the bandwidth usage efficiency. | 05-20-2010 |
20100128652 | METHODS AND SYSTEMS FOR PERFORMING HARQ ACK WITH SCANNING AND SLEEP IN WIMAX SYSTEMS - Embodiments of the present disclosure provide techniques for processing a HARQ data burst and/or a HARQ ACK message in the event a HARQ ACK message falls within a scanning or an unavailable interval of an MS. For certain embodiments, a HARQ ACK message may be postponed if it falls within the scanning or the unavailable interval of the mobile station. For certain embodiments, the HARQ data burst transmission may be postponed if the corresponding HARQ ACK message falls within a scanning or an unavailable interval of the mobile station. For certain embodiments, the HARQ ACK may be transmitted or received even if it falls within the scanning or the unavailable interval of the mobile station. However, the HARQ ACK message may not be processed during the scanning/unavailable interval. | 05-27-2010 |
20100157796 | METHODS AND SYSTEMS FOR LOAD-ADAPTIVE BACKOFF FOR WIMAX RANGING - Certain embodiments of the present disclosure provide an adaptive technique to determine size of a ranging back-off window according to a load of ranging channel. By applying an adaptive increase of the back-off window size, a probability of collision between ranging codes within a same transmission opportunity can be alleviated, and the ranging channel load can be decreased more efficiently than in the case of a standard non-adaptive back-off procedure | 06-24-2010 |
20100157820 | METHODS AND SYSTEMS FOR RANGING USING RANGING LOADING FACTOR - Methods and apparatus for indicating a base station's amount of ranging traffic to a mobile station (MS) and for selecting a base station (BS) for performing ranging based on the ranging traffic indication are provided. This notification may occur via a ranging loading parameter, such as a ranging loading factor (RLF) indicating the ratio of used ranging slots to available ranging slots, transmitted as a new TLV (Type-Length-Value) within the Uplink Channel Descriptor (UCD) of a (potential) serving BS or in the UCD of a Neighbor Advertisement (MOB_NBR-ADV) message for a neighbor BS. By selecting a BS with a certain level of unused ranging slots, the MS may exponentially decrease the ranging overhead (i.e., the average waiting time for the ranging procedures) when compared to a conventional MS that does not consider a BS's ranging overload when trying to perform ranging with the BS. | 06-24-2010 |
20100157912 | METHODS AND SYSTEMS FOR DL-MAP PROCESSING - Methods and apparatus for processing a downlink (DL) subframe of an orthogonal frequency-division multiplexing (OFDM) or an orthogonal frequency division multiple access (OFDMA) frame are provided. By arranging the DL-MAP information elements (IEs) in a DL-MAP of the DL subframe to correspond chronologically to the arrangement of their associated data bursts in the OFDM or OFDMA frame at a base station (BS), a user terminal receiving that frame may be able to start decoding the data bursts in the DL subframe without having to wait until all of the DL-MAP IEs have been parsed and decoded. In this manner, the user terminal may decode the data bursts while simultaneously parsing a remaining portion of the DL-MAP, and the time for processing the entire frame may be reduced, thereby increasing the processing speed. | 06-24-2010 |
20100177682 | METHODS AND SYSTEMS FOR IMPROVING RESPONSE MESSAGE TRANSMISSION RELIABILITY - Certain embodiments of the present disclosure improve a robustness of some critical MAC management response massages transmitted from a base station (BS) to a mobile station (MS). In this way, a reliability of transmission can be increased and a messaging failure that results in out of sync state between the MS and the BS can be avoided. | 07-15-2010 |
20100177709 | METHODS AND SYSTEMS FOR UPLINK SCHEDULING USING WEIGHTED QOS PARAMETERS - Certain embodiments of the present disclosure proposes a flexible method for scheduling of an uplink transmission simultaneously considering all active connections of a mobile station. A decision on scheduling priority can be made based on a metric that comprises QoS parameters and current traffic measurements. The weight factors may be applied for every QoS parameter per schedule type providing flexibility of the scheduling algorithm. The proposed scheduling algorithm may be applied to satisfy different QoS requirements for each service provider and application by changing weight factors if required. | 07-15-2010 |
20100185910 | METHODS AND SYSTEMS FOR SETTING CID MASK LENGTH OF A HARQ-MAP/SUB-MAP POINTER IE IN WIMAX SYSTEMS - Methods and apparatus for setting the connection identifier (CID) mask length of a Hybrid Automatic Repeat-Request (HARQ)-MAP or a SUB-MAP pointer information element (IE) in a compressed downlink map (DL-MAP) of an orthogonal frequency-division multiple access (OFDMA) frame are provided in an effort to reduce the number of false indications in the CID mask, while also striving, as a secondary concern, to reduce the CID mask length. In this manner, an individual mobile station (MS) may not waste processing, battery power, or time interpreting a HARQ-MAP message or a sub downlink/uplink map (SUB-DL-UL-MAP) message that was not intended for this particular MS. For some embodiments where the CID mask length is set to be small, the control overhead (i.e., the size of the HARQ-MAP or the SUB-MAP pointer IE) may be decreased, and more of the OFDMA frame may be available for data traffic. | 07-22-2010 |
20100189020 | METHODS AND SYSTEMS USING FAST CONNECTION SETUP PROCEDURE FOR WIMAX NETWORKS - Techniques for an MS to establish one or more default service flows, after entering a WiMAX network are provided. The techniques presented herein may enable the MS to maintain said one or more default service flows during the sleep mode. The one or more default service flow may be utilized in quickly establishing a connection between a WiMAX BS and the MS following the sleep mode. | 07-29-2010 |
20100190502 | METHODS AND SYSSTEMS FOR NETWORK ASSISTED SYSTEM ACQUISITION - Certain embodiments of the present disclosure provide techniques for re-directing a mobile station to perform network re-entry through a neighbor base station. A current serving BS may re-direct the MS to a neighbor BS with a message containing configuration information allowing the MS to communicate with the target BS without a lengthy scan procedure. | 07-29-2010 |
20100191861 | METHODS AND SYSTEMS USING DATA RATE DRIVEN PROTOCOL ACCELERATOR FOR MOBILE DEVICES - By controlling whether operations are offloaded to a protocol stack hardware accelerator as a function of data rate, power consumption may be reduced, for example, when data rates result in fragmented or segmented data not suitable for processing by the stack hardware accelerator. | 07-29-2010 |
20100195581 | SYSTEMS AND METHODS FOR SERVICE FLOW RETENTION IN A WIRELESS COMMUNICATION SYSTEM - A subscriber station may determine whether a service flow between the subscriber station and a base station is retained during an idle mode of the subscriber station. The subscriber station may reactivate the service flow when the subscriber station exits the idle mode. The subscriber station may monitor whether the service flow has data activity. The subscriber station may delete the service flow if there is no data activity. | 08-05-2010 |
20100202333 | METHODS AND SYSTEMS FOR TRANSMISSION SCHEDULING DURING SLEEP MODE IN WIMAX NETWORKS - Certain embodiments of the present disclosure allow data for a second connection to be exchanged while the second connection is in a low power state that overlaps with a listening interval of a first connection. | 08-12-2010 |
20100202336 | METHODS AND SYSTEMS FOR PROVIDING MBMS DATA TO SUBSCRIBER STATIONS - A subscriber station may receive a WiMAX connection identifier (CID) scheduling message from a 2G/3G network. The WiMAX CID scheduling message may include scheduling information that indicates when Multimedia Broadcast Multicast Service (MBMS) data for the subscriber station will be transmitted from a WiMAX network. The subscriber station may receive the MBMS data from the WiMAX network in accordance with the scheduling information. | 08-12-2010 |
20100202424 | METHODS AND SYSTEMS FOR DECODING BROADCAST PAGING MESSAGES IN WIMAX NETWORKS - Embodiments of the present disclosure propose a method for addressing MAC protocol data units which include MOB_PAG-ADV messages in an attempt to improve the success rate of decoding BS broadcast paging messages. For example, certain embodiments propose parsing and continuing to decode MPDUs with MOB_PAG-ADV messages although the corresponding CRC failed. | 08-12-2010 |
20100202429 | METHODS AND SYSTEMS FOR IDLE OPERATION IN MULTI-MODE MOBILE STATIONS - Certain embodiments of the present disclosure provide techniques for a multi-mode mobile station to establish paging intervals in different radio access technology (RAT) networks that do not collide. | 08-12-2010 |
20100202430 | METHODS AND SYSTEMS FOR IDLE MODE OPERATION IN MULTI-MODE MOBILE STATIONS - Certain embodiments of the present disclosure provide techniques for a multi-mode mobile station to establish paging intervals in different radio access technology (RAT) networks in an effort to avoid consecutive collisions between paging intervals of a first and a second network. | 08-12-2010 |
20100208607 | METHODS AND SYSTEMS FOR QOS TRANSLATION DURING HANDOVER BETWEEN WIRELESS NETWORKS - This disclosure provides methods and systems for translating quality of service (QoS) parameters of a first radio access technology (RAT), e.g., Worldwide Interoperability for Microwave Access (WiMAX), to QoS parameters of a second RAT, e.g., code division multiple access (CDMA) high rate packet data (HRPD). The methods and systems facilitate a handover by a multi-mode mobile station or other wireless device from the first RAT to the second RAT and vice versa. | 08-19-2010 |
20100208700 | METHODS AND SYSTEMS FOR SELECTING A HANDOVER BASE STATION IN MOBILE WIMAX - Methods and apparatus for improving performance and robustness of a handover procedure. For example, by handing over to a target base station (BS) that is co-located with a serving BS (i.e., a BS located in the same physical node as the serving BS), mobile station (MS) context transfers, handover preparation and downlink (DL) data continuity between the serving BS and the target BS may be simplified because the serving BS and the target BS are in the same physical node. Further, a location-based services advertisement (LBS-ADV) message may be enhanced to include sector center directions of the serving BS and neighboring BSs. Using this information, an MS may determine neighboring BSs that are adjacent to the serving BS and limit scanning operations and handovers to these adjacent BSs, thereby reducing the processing for those operations. | 08-19-2010 |
20100215026 | METHODS AND SYSTEMS USING UNIFIED OPERATOR AND RAT MAPPING AND SELECTION SCHEME - Certain embodiments of the present disclosure provide a unified scheme for selecting an operator and a radio access technology (RAT) by a multi-mode wireless device during a power-up or a handover process. By utilizing the proposed scheme, the mobile station may switch between RATs that are associated with the Worldwide Interoperability for Microwave Access (WiMAX), 3rd Generation Partnership Project (3GPP) or 3GPP2 standards. | 08-26-2010 |
20100216466 | METHODS AND APPARATUS FOR SUBSCRIBER STATION-BASED ADMISSION SELECTION IN A WIRELESS COMMUNICATION SYSTEM - A subscriber station may identify base stations that have sufficiently strong signal strength so that the base stations are candidates to be used for network entry. The subscriber station may determine which of the candidate base stations is least utilized. The subscriber station may select the least utilized base station for network entry. | 08-26-2010 |
20100232309 | METHODS AND SYSTEMS FOR DYNAMIC CALL BLOCKING IN WIMAX IDLE MODE - Certain embodiments of the present disclosure present methods and apparatuses that enable a mobile station (MS) to selectively reject downlink (DL) data during idle mode. The MS may determine whether to reject the pending DL data based on information about the data. This information may be provided by a base station (BS) that is part of the access service network (ASN) that is retaining the DL data. The information provided by the BS may, for instance, include service flow information related to the pending DL data. In certain embodiments, the information may include one or more internet protocol (IP) packets that are part of the pending DL data. | 09-16-2010 |
20100232328 | METHODS AND SYSTEMS FOR MOB_HO-IND MESSAGE ENHANCEMENT - Certain embodiments of the present disclosure provide a method and apparatus for efficient reactivation of a previously exited sleep mode. The proposed method may send a request for reactivation of the sleep mode along with the handover cancellation message to the serving base station. For certain embodiments, the request may include a set of sleep mode parameters used in the previously exited sleep mode. | 09-16-2010 |
20100232330 | METHODS AND SYSTEMS FOR SPLIT TIMER L3 P2P COMMUNICATIONS - Methods and apparatus for reducing power consumption of a mobile station (MS) during layer 3 (L3) peer-to-peer (P2P) communications employing a request/response message pair are provided. To save power, the MS may enter a power saving mode after transmitting a request message and initiating a timeout timer for the message pair, wherein the power saving mode may have an interval available for receiving the response message and an unavailable interval. The timeout timer may be suspended during the unavailable interval and resumed during the available interval such that the timeout timer is effectively lengthened. | 09-16-2010 |
20100238898 | METHODS AND APPARATUS FOR EXTENDING THE RESOURCE RETAIN TIME IN A HANDOVER - A mobile station may send a first handover indication message to a serving base station. The first handover indication message may include a first resource retain time. The mobile station may start a resource retaining timer using the first resource retain time. The mobile station may perform handover procedures. The mobile station may determine whether the resource retaining timer is within a threshold of expiring. The mobile station may send a second handover indication message to the serving base station if the resource retaining timer is within the threshold of expiring. | 09-23-2010 |
20100240364 | METHODS AND APPARATUS FOR BROADCASTING SYSTEM OVERHEAD MESSAGES IN WIRELESSS COMMUNICATION SYSTEMS - A base station may generate a subpacket of system overhead messages that is designed so that a subscriber station improves a success rate of decoding the system overhead messages by accumulating multiple received subpackets. The base station may repeatedly broadcast the subpacket to subscriber stations. When a subscriber station receives a subpacket of system overhead messages, the subscriber station may combine the subpacket with previously received subpackets and attempt to decode the system overhead messages from this combination. | 09-23-2010 |
20100240420 | METHODS AND APPARATUS FOR CHANGING PAGING PARAMETERS IN A COMMUNICATION SYSTEM - A base station and a subscriber station may negotiate paging parameters so that the subscriber station can enter idle mode. After the subscriber station has entered idle mode, the base station may change at least one paging parameter at the base station. The base station may direct the subscriber station to change at least one paging parameter at the subscriber station after the subscriber station has entered idle mode. The subscriber station may change at least one paging parameter at the subscriber station after the subscriber station has entered idle mode. | 09-23-2010 |
20100265881 | METHODS AND SYSTEMS USING EFFICIENT TRANSMISSION OF DCD/UCD MESSAGES IN A WIMAX SYSTEM - Embodiments of the present disclosure propose a method and apparatus for ensuring each mobile station serviced by a base station does not miss a new version of a DCD/UCD message before the new version takes effect. | 10-21-2010 |
20100267410 | METHODS AND SYSTEMS FOR ENHANCED SLEEP REQUEST MESSAGES FOR MULTI-MODE OPERATIONS - Embodiments of the present disclosure may provide a method of managing multi-mode operations such that a multi-mode MS may utilize the WiMAX sleep mode for monitoring the paging intervals of other supported radio access technologies. For example, certain embodiments may enable the MS to determine a set of WiMAX sleep mode parameters that align a WiMAX sleep window with a CDMA page listening window. Additionally, certain embodiments may provide enhanced MOB_SLP-REQ and MOB_SLP-RSP messages enabling the multi-mode MS to establish a WiMAX sleep mode based on the previously determined WiMAX sleep mode parameters. As a result, embodiments of the present disclosure may enable an MS to manage multi-mode operations, such that the MS | 10-21-2010 |
20100279714 | METHODS AND SYSTEMS FOR CDMA EVDO PAGING INTERVAL ALIGNMENT WITH AN OVERLAID WIMAX NETWORK - Certain embodiments of the present disclosure provide a method for communicating, by a multi-mode mobile station (MS), with first and second networks via first and second radio access technologies (RATs). The method generally includes determining a first set of one or more paging parameters in an effort to establish a listening interval of a sleep cycle of the first network that aligns with a sleep interval of a control channel cycle of the second network and communicating the first set of paging parameters to a base station of the first network in a request to establish the sleep cycle of the first network. | 11-04-2010 |
20100290373 | METHODS AND SYSTEMS FOR POWER SAVINGS IN FDD or H-FDD NETWORKS - Certain embodiments of the present disclosure provide methods and systems for saving battery power in frequency division duplex (FDD) or half-duplex FDD (H-FDD) wireless networks. | 11-18-2010 |
20100290374 | METHODS AND SYSTEMS FOR HANDOVER SCANNING IN FDD OR H-FDD NETWORKS - Certain embodiments of the present disclosure provide a method for efficient scanning of the neighboring base stations for handover by a mobile station operating in frequency division duplex while maintaining the communication with a serving base station. | 11-18-2010 |
20100290375 | METHODS AND SYSTEMS FOR RANGING AND NETWORK ENTRY GROUP SWITCHING IN FDD WIMAX NETWORKS - Certain embodiments of the present disclosure provide a method for changing an FDD group during ranging or network entry procedures for the frequency division duplex (FDD) WiMAX systems. | 11-18-2010 |
20110044238 | METHODS AND SYSTEMS FOR UPDATING CHANNEL DESCRIPTOR INFORMATION IN WIMAX NETWORKS - This application provides techniques for updating channel descriptor (CD) information in a wireless communications system. | 02-24-2011 |
20110045849 | METHODS AND SYSTEMS FOR RECOVERING FROM AN INCOMPLETE IDLE MODE ENTRY - This application provides techniques for a mobile station (MS) to determine whether a base station (BS) successfully receives a response to a BS request for the MS to enter an idle mode. | 02-24-2011 |
20110243093 | Method and Apparatus for Pre-Uplink Synchronization in TD-SCDMA Handover - Certain aspects of the present disclosure propose techniques and apparatus for pre-uplink synchronization in Time Division Synchronous Code Division Multiple Access (TD-SCDMA) handover. | 10-06-2011 |
20110243095 | Facilitating Baton Handover in Multi-Carrier TD-SCDMA Communications Systems - Handover processes in multi-carrier carrier time division-synchronous code division multiple access (TD-SCDMA) systems include a two-step handover process. When handover of a user equipment is warranted, a hard handover is performed within a source cell of the system from a first frequency to a second frequency. A baton handover is then performed from the second frequency at the source cell to the second frequency at a target cell. In another aspect, a user equipment receives an assignment of an uplink time slot at a target cell that was selected to prevent the uplink time slot from being proximal to a downlink time slot of a source cell. The user equipment then performs the inter-frequency baton handover using the uplink time slot. | 10-06-2011 |
20110243099 | Method of Service Redirection Procedures in TD-SCDMA and GSM Hybrid Mobile Terminals - Certain aspects of the present disclosure propose techniques for service redirection in Time Division Synchronous Code Division Multiple Access (TD-SCDMA) and Global System for Mobile communications (GSM) hybrid mobile terminals. | 10-06-2011 |
20110243119 | Method and Apparatus of Fast System Selection in the TD-SCDMA and GSM Multimode Terminal - Certain aspects of the present disclosure propose techniques and apparatus of fast system selection for a multimode terminal that can support both Time Division Synchronous Code Division Multiple Access (TD-SCDMA) technology and Global System for Mobile communications (GSM) technology. | 10-06-2011 |
20110243121 | User Equipment Based Method to Improve Synchronization Shift Command Convergence in TD-SCDMA Uplink Synchronization - Certain aspects of the present disclosure propose techniques for improving synchronization shift command convergence in Time Division Synchronous Code Division Multiple Access (TD-SCDMA) uplink synchronization. | 10-06-2011 |
20110244880 | Method and Apparatus to Improvie Idle Mode Power Consumption in Multiple USIM Configuration - Certain aspects of the present disclosure propose techniques and apparatus for improving idle mode power consumption of a mobile station with multiple Universal Subscriber Identity Modules (USIMs). | 10-06-2011 |
20110249577 | FACILITATING UPLINK SYNCHRONIZATION IN TD-SCDMA MULTI-CARRIER SYSTEMS - Uplink synchronization processes in multi-carrier time division-synchronous code division multiple access (TD-SCDMA) systems include determining uplink transmission timing for a first carrier frequency and performing uplink synchronization on the other carrier frequencies based on the transmission timing of the first carrier frequency. The transmission timing may be adjusted based on a timing offset that is measured between the received downlink pilot signals of the various carrier frequencies. User equipment may perform uplink synchronization individually with each of the carriers serviced by a particular Node B after receiving synchronization information regarding those carrier frequencies. | 10-13-2011 |
20110261707 | FACILITATING OPEN LOOP POWER CONTROL IN TD-SCDMA MULTI-CARRIER SYSTEMS - Open loop power control in Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) multi-carrier systems is facilitated through the determination of a value for open loop control on a primary carrier frequency which is then used to perform open loop control on at least one secondary carrier frequency in the multi-carrier system. This determined open loop control value may be applied using the value determined on the primary carrier frequency, or may be further adjusted using an estimated difference between received power of the primary carrier frequency and the secondary carrier frequencies, in selected aspects. When the pilot signals in the secondary carrier frequencies are transmitted at different power levels, this open loop control value may be further adjusted with a transmit power level offset. | 10-27-2011 |
20110274001 | Signal Measurement in TD-SCDMA Multicarrier Systems Using Downlink Synchronization Codes - Wireless communication in a multicarrier radio access network may be implemented where a user equipment (UE) maintains communication with various carrier frequencies in the multicarrier network. The UE will receive an indication from a node B to measure a signal quality on one of a number of carrier frequencies in the network. The UE will then measure the signal quality on the carrier frequency based on measurements using a downlink synchronization code transmitted by the node B on the downlink pilot channel of the carrier frequencies in the multicarrier network. The UE may then report the channel quality back to the node B. | 11-10-2011 |
20110280131 | High Speed Control Channel Monitoring in a Multicarrier Radio Access Network - User equipments (UEs) will monitor each frequency in a multicarrier wireless radio access network for at least one control channel that may contain downlink data allocations or other such messages from the network. This monitoring may be dynamically controlled with a physical layer indication received by the UE from a node B that designates a number of carrier frequencies of all of the carrier frequencies of the network. In response to this physical layer indication, the UE will monitor at least one control channel in the designated carrier frequency or frequencies. | 11-17-2011 |
20110280140 | Alternate Transmission Scheme for High Speed Packet Access (HSPA) - Transmission of certain channels between a User Equipment (UE) and a Node B (NB) in High Speed Packet Access (HSPA) of a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network may be scheduled during a UE's idle intervals. Scheduled transmissions during a UE's idle interval result in lost system resources because the transmissions do not occur. A NB may prevent conflicts between scheduled transmissions and a UE's idle period by prohibiting transfer of certain channels a predetermined number of radio frames before the UE's idle period. Alternatively, the NB may schedule transmission of certain channels with a predetermined delay to prevent the channels from being scheduled during the UE's idle period. | 11-17-2011 |
20110280141 | Control Channel Discontinuous Reception (DRX) Messaging for Performing Measurements to Enable Handover Between Wireless Networks - In geographical areas with incomplete coverage of Time Division Synchronous Code Division Multiple Access (TD-SCDMA) networks, it may be beneficial for a multimode User Equipment (UE) to handover to a Global System for Mobile Communications (GSM) network. Before handover, a multimode UE may receive an indication from a serving TD-SCDMA cell to enter a Discontinuous Reception (DRX) mode and perform measurement on a nearby GSM cell. After measurement, the UE receives a grant from the serving TD-SCDMA cell allowing the UE to transmit a measurement report to the serving TD-SCDMA cell. The TD-SCDMA cell may use the measurement report to determine if the multimode UE should handover to the GSM cell. | 11-17-2011 |
20110280221 | Discontinuous Reception (DRX) For Multimode User Equipment (UE) Operation - In geographical areas with incomplete coverage of Time Division Synchronous Code Division Multiple Access (TD-SCDMA) networks, it may be beneficial for a multimode User Equipment (UE) to register with and monitor paging channels of a Base Transceiver Station (BTS) of a Code Division Multiple Access (CDMA) 1× Radio Transmission Technology (RTT). The UE may monitor the paging channels of the BTS of the CDMA 1× RTT network by entering discontinuous reception (DRX) from the Node B of the TD-SCDMA network. The Node B of the TD-SCDMA network schedules the UE's DRX to coincide with the paging interval appropriate for the UE determined by the UE's IMSI and network time information. After monitoring the paging channel, the UE reacquires the Node B of the TD-SCDMA network and receives data and HARQ transmissions. | 11-17-2011 |
20110292821 | Service-Based Inter-Radio Access Technology (INTER-RAT) Handover - In geographical areas with incomplete Time Division Synchronous Code Division Multiple Access (TD-SCDMA) coverage, it may be beneficial for a multimode User Equipment (UE) to handover to a GSM network, a WCDMA network, a CDMA 1x RTT network, or an LTE network. When multiple networks are available to the UE and a poor signal quality is detected in the TD-SCDMA network, one of the available networks may be selected for inter-RAT handover based on a service type of the active call on the UE. For example, when a circuit-switched call, such as a voice call, is in progress on the UE, an inter-RAT handover to a GSM network occurs. In another example, when a packet-switched call, such as a data call, is in progress on the UE, an inter-RAT handover to a WCDMA network occurs. Selecting a network for inter-RAT handover based on an active call service type improves the service provided to the UE. | 12-01-2011 |
20110292871 | Wireless Attachment To Multiple Radio Access Networks At The Same Time - Wireless communication within an area covered by multiple radio access networks may be accomplished where a user equipment (UE) is configured for first and second radio access networks. The UE attaches to the first radio access network, and, while maintaining the attachment to the first radio access network, also attaches to the second radio access network. | 12-01-2011 |
20110292908 | Additional Service Type Setup in Mobile Terminals Having Multiple Radio Access Network Accessiblity - In an area covered by multiple different radio access networks, a user equipment (UE) capable of accessing each of the multiple networks at the same time may provide additional service type setup for different call types. The UE registers each of the available call types with a first radio access network. Calls of one of the registered call types may be established, whether UE-originated or UE-terminated, with the first radio access network. When initiating a call of another type, the UE may initiate a different-typed call with another radio access network in the area, while maintaining the call of the first call type with the first radio access network. | 12-01-2011 |
20110292909 | Alternate Transmission Scheme for High Speed Packet Access (HSPA) - Post-hard handover processing in a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network may be improved to allow operation of High Speed Packet Access (HSPA) in hard handover. For example, uplink synchronization may be completed concurrent with HSPA to quickly resume HSPA operation in hard handovers. User Equipment (UE) may receive downlink data while completing uplink synchronization. In another example, a unique SYNC_UL code may be assigned to a UE for hard handover. The unique SYNC_UL code allows Node Bs of the TD-SCDMA network to know which UE is performing hard handover. When a Node B is receiving the unique SYNC_UL, the Node B may begin to allocate UL data grants. After receiving UL data from the UE, the Node B may resume High Speed Downlink Packet Access (HSDPA). | 12-01-2011 |
20120014258 | EFFECTIVE TIMING MEASUREMENTS BY A MULTI-MODE DEVICE - Certain aspects of the present disclosure relate to a technique for effective measurement in a second Radio Access Technology (e.g., TD-SCDMA) while receiving service in a first Radio Access Technology (e.g., GSM). | 01-19-2012 |
20120020283 | Enhancing Pilot Channel Transmission in TD-SCDMA Multicarrier Systems Using Secondary Carrier Frequencies - Wireless communication in a multicarrier radio access network, such as a (TD-SCDMA) network, may be implemented where a user equipment (UE) maintains communication over various carrier frequencies in the multicarrier network. The UE will receive a downlink pilot channel transmitted on every subframe on a primary carrier frequency. The UE will also receive a downlink pilot channel transmitted on less than every subframe on a secondary carrier frequency The downlink pilot channel is sent in subframes on the secondary carrier frequencies using a particular period and offset to reduce or minimize interference. | 01-26-2012 |
20120020287 | Area Update Procedures for a Multiple USIM Mobile Terminal - Certain aspects of the present disclosure relate to a method for improving location area and routing area update procedures in a multiple-USIM mobile terminal. A technique is provided for allowing the mobile terminal to reduce update procedures by using a message for multiple USIMs. The discussed technique reduces the number of messages exchanged and CPU processing. | 01-26-2012 |
20120020331 | Coordinating Transmission Hold and Resume in TD-SCDMA - Wireless communication in a radio access network may be implemented where a user equipment (UE) sends a hold signal to a Node B indicating that data transmission to the UE is to be put on hold. The UE may resume data transmission from the Node B by sending a resume signal to the Node B. During the hold in transmission, the UE may measure a GSM network to assist in handover of the UE between a TD-SCDMA network and a GSM network. | 01-26-2012 |
20120020332 | TECHNIQUE FOR SCHEDULING TD-SCDMA IDLE INTERVALS - Certain aspects of the present disclosure relate to a technique for scheduling TD-SCDMA idle intervals, wherein a frame for inter-RAT measurement is selected based on a number of UEs allocated. | 01-26-2012 |
20120021744 | Measurement and Handover of Dual USIM Mobile Terminal - Certain aspects of the present disclosure relate to a method for efficient measurement and handover of a mobile terminal with multiple USIMs. According to one aspect, a source Node B may initiate calls with first and second subscriber identities associated with a UE that supports multiple subscriber identities and transmit a request for a measurement report to the UE, the request specifying the first subscriber identity. The subscriber identities may be associated with a UE by association with an International Mobile Equipment Identity (IMEI). The source Node B may determine to handover the calls for the first and second subscriber identities to a target Node B based on the measurement report. The source Node B may transmit handover commands to instruct the UE to handover calls for the first and second subscriber identities to the target Node B. | 01-26-2012 |
20120021755 | RESOURCE ALLOCATION IN A MULTIPLE USIM MOBILE STATION - Certain aspects of the present disclosure provide techniques for resource allocation for a TD-SCDMA multiple USIM mobile station. According to certain aspects, a base station may send allocation for a first call with a first subscriber identity to a UE that supports multiple subscriber identities, wherein the allocation for the first call comprises allocation of at least a first uplink time slot and at least a first downlink time slot in a frequency carrier and send the UE allocation for a second call with a second subscriber identity, wherein the allocation for the second call comprises allocation of at least a second uplink time slot and at least a second downlink time slot in the frequency carrier, wherein the second uplink time slot is different than the first uplink time slot. | 01-26-2012 |
20120027003 | Method and Apparatus for Power Efficient Idle Operation in a Dual SIM CDMA EVDO Mobile Station - Methods and apparatus for configuring and scheduling paging intervals for a mobile station (MS) having multiple subscriber identity modules (SIMs) to be aligned are provided. The MS having multiple SIMs may operate in a network via a particular radio access technology (RAT), such as Code Division Multiple Access (CDMA) EVDO (Evolution-Data Optimized). By having aligned paging intervals, the MS may wake up only once during the paging cycles for the various SIMs rather than waking up multiple times, thereby reducing power consumption of the MS during idle mode compared to a conventional MS with multiple SIMs. | 02-02-2012 |
20120028657 | Efficient Paging for Multiple Universal Subscriber Identity Module (USIM) Equipment in TD-SCDMA Systems - Wireless communication in a radio access network may be implemented when a user equipment (UE) is in active communication with a serving node B using a first international mobile subscriber identity (IMSI) and a communication request is made for a second IMSI associated with the same UE. The communication request to the second IMSI of the UE is directly through the serving node B rather than through a general page from the cells of the UE's location area or routing area. The direct communication may be through a page from the serving node B or through a unicast communication directly to the UE from the serving node B. | 02-02-2012 |
20120039261 | CQI Reporting of TD-SCDMA Multiple USIM Mobile Terminal During HSDPA Operation - Certain aspects of the present disclosure provide techniques and apparatus for Channel Quality Information (CQI) reporting of a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) multiple Universal Subscriber Identity Module (USIM) mobile terminal during a High Speed Downlink Packet Data (HSDPA) operation. For certain aspects, a method of wireless communication generally includes reporting CQI for a first call with a first subscriber identity and receiving scheduling information for at least the first call with the first subscriber identity and a second call with a second subscriber identity, wherein the scheduling information for both the first and second calls are based on the CQI reported for the first call. | 02-16-2012 |
20120040670 | Hardware Activation of Dual USIM Multimode Mobile Terminal - Certain aspects of the present disclosure relate to a method for hardware activation of dual USIM TD-SCDMA multimode mobile terminals. The technique effectively provides for efficient power consumption. In one aspect, a mobile terminal may register dual mobile identifiers on a first radio access technology (RAT) using a first hardware module. If a call is set up, the mobile terminal activates a second hardware module and registers the unused mobile identifier with the second RAT. | 02-16-2012 |
20120040672 | Uplink Synchronization of TD-SCDMA Multiple USIM Mobile Terminal During Handover - Certain aspects of the present disclosure provide techniques and apparatus for uplink synchronization of a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) multiple Universal Subscriber Identity Module (USIM) mobile terminal during a handover. For certain aspects, a method of wireless communication generally includes transmitting, to a Node B, at least one uplink synchronization code from a UE comprising at least a first subscriber identity and a second subscriber identity, receiving timing information for uplink synchronization to the Node B, wherein the timing information is measured based on the at least one uplink synchronization code, and applying the timing information to calls for both of the first and second subscriber identities to synchronize uplink transmissions to the Node B. | 02-16-2012 |
20120088499 | TD-SCDMA MEASUREMENT IN A DUAL TD-SCDMA AND GSM MOBILE STATION - Certain aspects of the present disclosure provide techniques and apparatus for performing cell reselection based on neighbor cell measurements. For certain aspects, a method of wireless communication generally includes, while actively served in a first Radio Access Technology (RAT) network, obtaining neighbor cell measurements for a second RAT network, and making a decision on whether to perform a cell reselection to the second RAT network based on the neighbor cell measurements. | 04-12-2012 |
20120088501 | METHOD AND APPARATUS FOR EFFICIENT IDLE OPERATION IN A DUAL-SIM CDMA 1X MOBILE STATION - Methods and apparatus are provided for selecting identifying numbers associated with a mobile station (MS) having multiple subscriber identity modules (SIMs) such that the paging intervals for both identifying numbers are aligned. The MS having multiple SIMs may operate in a network via a particular radio access technology (RAT), such as Code Division Multiple Access (CDMA) 1×RTT (1 times Radio Transmission Technology). By having aligned paging intervals, the MS may wake up only once during the paging cycles for the various identifying numbers rather than waking up multiple times, thereby reducing power consumption of the MS during idle mode compared to a conventional MS with multiple SIMs, and thus multiple identifying numbers. | 04-12-2012 |
20120088502 | METHOD AND APPARATUS FOR EFFICIENT IDLE OPERATION IN A DUAL-SIM WCDMA MOBILE STATION - Methods and apparatus are provided for selecting identifying numbers associated with a mobile station (MS) having multiple subscriber identity modules (SIMs) such that the paging intervals for both identifying numbers are aligned. The MS having multiple SIMs may operate in a network via a particular radio access technology (RAT), such as Wideband Code Division Multiple Access (W-CDMA). By having aligned paging intervals, the MS may wake up only once during the paging cycles for the various identifying numbers rather than waking up multiple times, thereby reducing power consumption of the MS during idle mode compared to a conventional MS with multiple SIMs, and thus multiple identifying numbers. | 04-12-2012 |
20120099535 | METHOD AND APPARATUS FOR TRANSMISSION FAILURE DETECTION IN TIME DIVISION SYNCHRONOUS CODE DIVISION MULTIPLE ACCESS (TD-SCDMA) NETWORKS - A method, an apparatus, and a computer program product for wireless communication are provided, wherein a first synchronization signal is transmitted to request access to a Node B; an acknowledgement transmitted from the Node B is detected, wherein the acknowledgment comprises an indication that a second synchronization signal was transmitted after the first synchronization signal; and the first synchronization signal is retransmitted based on the acknowledgment. | 04-26-2012 |
20120108224 | USING QUALITY OF SERVICE TO CONTROL HARDWARE FOR LOW BATTERY SCENARIOS - Certain embodiments of the present disclosure relate to methods for reducing power consumption of a mobile device while maintaining QoS of communication links. If the available battery power is below a predefined threshold, then several power-saving techniques may be triggered that increase an air time of the mobile device by shutting down one or more modem hardware components. | 05-03-2012 |
20120113826 | Idle Interval Generation in Telecommunication Systems - In certain wireless communications systems, such as TD-SCDMA, frames are divided into sections allocated for various communication purposes such as uplink and downlink transmissions. In such schemes, there may be no mechanism to generate gaps for a UE to employ for non-allocated purposes, such as inter-frequency or inter-RAT measurement. To generate gaps for such purposes the UE may employ rate-matching techniques to take certain allocated time slots for the UE and reserve them for inter-RAT measurement or other purposes. The rate-matching techniques generate unconfigured slots. | 05-10-2012 |
20120113960 | Method and Apparatus to Support HSUPA During Baton Handover in TD-SCDMA Systems - Certain aspects of the present disclosure propose techniques for continuing high-speed packet access (HSPA) during the baton handover in Target Cell Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems. In an aspect of the disclosure, a technique for performing a baton handover from a source node B (NB) to a target NB by a user equipment (UE) is provided. The technique generally includes receiving a first signal instructing the UE to perform the baton handover from the source NB to the target NB, transmitting data in uplink transmissions to the target NB during the baton handover, and receiving, from the source NB, information regarding the uplink transmissions. | 05-10-2012 |
20120122514 | SELECTING NETWORK SERVICE PROVIDERS FOR MULTI-MODE MOBILE DEVICES - A method for facilitating dynamic service-based network selection and determination may be implemented by a communications device. A device may choose a network and/or network access provider (NAP) based on a type of service desired by a user. For the service, the system may determine which NAP provides the most desired service level for a particular network service provider (NSP). The desired service level may include such factors as power consumption, communication performance, past performance, cost, reward availability, etc. Thus, a user chooses a particular service and the system chooses the network that will provide the service at a desired level to the user. | 05-17-2012 |
20120163198 | Scheduling TDD-LTE Measurement in TD-SCDMA Systems - Certain aspects of the present disclosure propose techniques for performing a time division duplex-long term evolution (TDD-LTE) measurement in a time division synchronous code division multiple access (TD-SCDMA) system. Certain aspects provide a method that generally includes obtaining measurements of downlink (DL) transmission from a base station (BS) of a second radio access technology (RAT), maintaining uplink (UL) transmission with a BS of a first RAT while obtaining the measurements, and performing network acquisition operations with the BS of the second RAT based on the measurements. | 06-28-2012 |
20120163248 | Baton Handover From TDD-LTE to TD-SCDMA Systems - Certain aspects of the present disclosure propose techniques for performing a baton handover from TDD-LTE to TD-SCDMA systems. Certain aspects provide a method that generally includes receiving a handover command to handover from a base station (BS) of a first radio access technology (RAT) to a BS of a second RAT, switching uplink (UL) transmission from the BS of the first RAT to the BS of the second RAT, maintaining downlink (DL) transmission with the BS of the first RAT after switching the UL transmission to the BS of the second RAT, and switching the DL transmission from the BS of the first RAT to the BS of the second RAT after switching the UL transmission to the BS of the second RAT. | 06-28-2012 |
20120163249 | System and Method of Improving Redirection in a TD-SCDMA Circuit-Switched Fallback from TDD-LTE Systems - Certain aspects of the present disclosure propose techniques for improving redirection in a TD-SCDMA circuit-switched fallback from TDD-LTE systems. Certain aspects provide a method that generally includes initiating a call setup (CS) procedure for leaving a base station (BS) of a first radio access technology (RAT) for a call on a second RAT, receiving, in response to the CS procedure, a message from the BS of the first RAT comprising a system frame number (SFN) for the BS of the first RAT and an offset number for a BS of the second RAT for setting up the call, and generating an estimated SFN for the BS of the second RAT based on the SFN for the BS of the first RAT and the offset number. | 06-28-2012 |
20120163250 | System Synchronization in TD-SCDMA and TDD-LTE Systems - Certain aspects of the present disclosure propose techniques for synchronizing TD-SCDMA and TDD-LTE systems. Certain aspects provide a method that generally includes obtaining, from a base station (BS) of a first radio access technology (RAT), timing and a system frame number (SFN) for a BS of a second RAT, and performing network acquisition operations with the BS of the second RAT using the timing and the SFN. | 06-28-2012 |
20120163340 | METHOD AND APPARATUS FOR MAINTAINING COMMUNICATION DURING A BATON HANDOVER - A method and apparatus enable high-speed downlink data transmissions to continue while a baton handover is in progress. In an aspect of the disclosure, a method of wireless communication includes switching an uplink from a source cell to a target cell while maintaining a downlink with the source cell, and transmitting over the uplink to the target cell at least one metric of quality of the downlink In one example, the metric of quality may be a CQI. In another example, the metric of quality may be a HARQ ACK/NACK. The metric of quality of the downlink may be transmitted from the target cell to the source cell, directly or by way of a radio network controller. | 06-28-2012 |
20120163346 | TDD-LTE Measurement Gap for Performing TD-SCDMA Measurement - Certain aspects of the present disclosure propose techniques for enhancing a measurement gap for TD-SCDMA measurement. Certain aspects provide a method that generally includes receiving, from a base station (BS) of a first radio access technology (RAT), a message indicating a measurement gap in which a user equipment (UE) is to take a measurement in a second RAT, the message comprising an indication of a start position of the measurement gap and a duration of the measurement gap; and taking a measurement during the measurement gap. | 06-28-2012 |
20120170549 | Method and Apparatus for System Frame Number Synchronization in Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) Networks - A method, an apparatus, and a computer program product for wireless communication are provided in which a first signal from a first Node B (NB) using a first system frame number (SFN) is received; and a second signal from a second NB using a second SFN is received, wherein the first SFN and the second SFN are identical. | 07-05-2012 |
20120172043 | Method and Apparatus for Returning During a Baton Handover - An apparatus and method enable mobile user equipment to return to a first cell after attempting a baton handover to a second cell. In one aspect of the disclosure, a method of wireless communication in a cellular network including a source cell and a target cell is disclosed. Here, the method includes switching transmission of an uplink from the source cell to the target cell while maintaining a downlink with the source cell, determining to return the transmission of the uplink to the source cell, and returning the transmission of the uplink from the target cell to the source cell. In some aspects, the method may further include switching reception of a downlink from the source cell to the target cell, determining to return the reception of the downlink to the source cell, and returning the reception of the downlink from the target cell to the source cell. | 07-05-2012 |
20120176891 | Method and Apparatus for Recovery of Link Failure During Handover in TD-SCDMA Systems - A method and an apparatus for wireless communications comprising determining that a first handover from a source cell to a target cell has failed; and performing a second handover from the source cell to a first neighbor cell different from the source cell and from the target cell. In on aspect, the method and apparatus further comprising performing the second handover by sending a signal to the first neighbor cell and receiving a return signal from the first neighbor cell; and further comprising sending a message to initiate radio resource setup between the first neighbor cell and a radio network controller (RNC); and receiving a connection resetup and a Physical Channel Reconfiguration message from the radio network controller (RNC). | 07-12-2012 |
20120182968 | METHOD AND APPARATUS FOR POWER CONTROL DURING TD-SCDMA BATON HANDOVER - A method for wireless communication comprises switching an uplink (UL) from a source cell to a target cell; and receiving an uplink transmit power control (TPC-UL) command from the source cell, wherein the TPC-UL command is generated by the target cell. | 07-19-2012 |
20120182975 | Method and Apparatus for Repeating Uplink Synchronization in Time Division Synchronous Code Division Multple Access (TD-SCDMA) Networks - A method, an apparatus, and a computer program product for wireless communication are provided in which a first synchronization signal to access to a Node B is transmitted; a request signal from the Node B requesting a second synchronization signal is received; and the second synchronization signal is transmitted to the Node B. | 07-19-2012 |
20120184278 | METHOD AND APPARATUS FOR ENHANCEMENT OF SYNCHRONIZATION FOR TD-SCDMA BATON HANDOVER - A method and apparatus for wireless communication comprising switching an uplink (UL) from a source cell to a target cell; and receiving a Synchronization Shift (SS) command from the source cell, wherein the SS command is generated by the target cell. In one aspect, the method and apparatus further comprise switching a downlink (DL) through the target cell; completing a physical channel reconfiguration; and sending a Physical Channel Reconfiguration Complete message to the Radio Network Controller (RNC) through the target cell. | 07-19-2012 |
20120188877 | Methods and Apparatus to Perform Reference Signal Measurements in a TDD-LTE System From a TD-SCDMA System - Methods and apparatus are provided for performing measurement of reference signals in the proper subframes of a first radio access technology (RAT) while operating in a second RAT. For certain aspects, the first and second RATs may be Time Division Duplex Long Term Evolution (TDD-LTE) and Time Division—Synchronous Code Division Multiple Access (TD-SCDMA), respectively. By knowing the correct TDD-LTE downlink and uplink subframe configurations, a user equipment device (UE) may temporarily leave the TD-SCDMA network during an idle interval and perform expedited and accurate measurement of TDD-LTE reference signals without errors from trying to measure reference signals during uplink subframes. | 07-26-2012 |
20120188987 | Apparatus and Method for Facilitating Handover in TD-SCDMA Systems - A method and apparatus for facilitating handover in a TD-SCDMA system is provided. The method may comprise transmitting data to a serving Node B using a first set of assigned resources, and contemporaneously transmitting the data to at least one neighbor Node B using a second set of assigned resources. | 07-26-2012 |
20120201223 | Method and Apparatus for Avoiding Physical Random Access Channel Collisions - A method and apparatus for avoiding Physical Random Access Channel collisions is provided. The method may comprise transmitting, by a first user equipment (UE), a first access request using a synchronization code in a subframe to a Node B, and receiving an acknowledgement from the Node B, wherein the acknowledgement indicates that a second UE has transmitted a second access request in the subframe using the synchronization code. Further, the method may comprise receiving, in a sub-frame, a first synchronization code from a first UE and a second synchronization code from a second UE, and preventing transmission of an acknowledgment to both the first and second UEs based on a determination that the received first and second synchronization codes are the same. | 08-09-2012 |
20120207131 | Method and Apparatus for Continuing HSPA During Baton Handover in TD-SCDMA Systems - Certain aspects of the present disclosure propose techniques for continuing high-speed packet access (HSPA) during the baton handover in Time Division Synchronous Code Division Multiple Access (TD-SCD-MA) systems. In aspects of the disclosure, one techniques for performing a baton handover from a source node B (NB) to a target NB by a user equipment (UE) is provided. The technique generally includes receiving a first signal instructing the UE to perform the baton handover from the source NB to the target NB, the first signal including non-scheduled transmission grant information and transmitting data to the target NB during the baton handover in accordance with the non-scheduled transmission grant information, wherein the data is re-transmitted to the target NB a predetermined number of times. | 08-16-2012 |
20120230295 | Method and Apparatus to Support HSDPA ACK/CQI Operation During Baton Handover in TD-SCDMA Systems - Certain aspects of the present disclosure propose techniques for continuing high-speed downlink packet access (HSDPA) during the baton handover in Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems. Aspects of the disclosure provide a method for performing a baton handover from source node B (NB) to a target NB by a user equipment (UE) and an apparatus capable of performing operations of the method. The method generally includes receiving a first signal instructing the UE to perform the baton handover from the source NB to the target NB, the first signal indicating resources for use by the UE and transmitting, on the indicated resources, feedback information regarding reception of data transmissions during the baton handover. | 09-13-2012 |
20120257494 | SIMULTANEOUS ACQUISITION OF A TD-SCDMA NETWORK IN CIRCUIT-SWITCHED FALLBACK FROM TDD-LTE SYSTEMS - In mobile user equipment (UE) configured to allow for operation on multiple wireless communication networks, such as on a TD-SCDMA network or on a TDD-LTE network, an improved method for handing over a circuit-switched call is offered. The proposed circuit-switched fallback procedure, employing an improved UE hardware architecture, allows for certain connection setup procedures to occur in parallel, such as the UE pre-acquiring the TD-SCDMA cell. The parallel operations thus speed up the circuit-switched fallback procedure and reduce existing delays in executing circuit-switched fallback from TDD-LTE to TD-SCDMA networks. | 10-11-2012 |
20120257549 | PACKET-SWITCH HANDOVER IN SIMULTANEOUS TDD-LTE AND TD-SCDMA MOBILE COMMUNICATIONS - A mobile device capable of communicating on multiple radio access networks simultaneously may concurrently operate calls of a first call type on a first network and a second call type on the second network. As the mobile device approaches the limits of the service area of the second network it may take measurements to result in the call of the second call type to be serviced by the serving cell of the first network which is serving the mobile device for the first call type. In this manner the mobile device may ensure that when it leaves the service area of the second network, the calls of the first call type and second call type are served by the same serving cell in the first network. | 10-11-2012 |
20120257550 | MEASUREMENT IN SIMULTANEOUS TDD-LTE AND TD-SCDMA/GSM SYSTEMS - In a mobile device for wireless communication capable of communicating on multiple radio access technologies (RATs), cell selection may be improved by reusing cell measurements for inter-RAT cell selection. This will reduce the number of cell measurements taken and improve mobile device performance. A time threshold may be used to instigate new cell measurement to prevent cell measurement data from being outdated. | 10-11-2012 |
20120257577 | METHODS AND SYSTEMS FOR MOBILE WIMAX THREE-WAY DOWNLINK CONCURRENT PROCESSING AND THREE-WAY HANDOVER - Methods and apparatus for establishing multiple connections between a wireless device and multiple base stations and transferring data using these connections via different segments of an orthogonal frequency division multiple access (OFDMA) frame are provided. The multiple connections may be used for multi-way (e.g., three-way) concurrent processing, multi-way (e.g., three-way) handover, or a hybrid between concurrent processing and multi-way handover in an effort to increase data throughput for the wireless device. | 10-11-2012 |
20120257614 | METHOD AND APPARATUS FOR DERIVING FINE TIMING TO ASSIST POSITION ACQUISITION IN A COMMUNICATION NETWORK - In wireless communication systems network timing may assist position location operations. A user equipment may obtain a rough network time from a server to tag when a downlink frame is received. That time may be based on a network frame boundary, particularly for synchronous networks. An estimate of the one way delay, which may be half of a timing advance value, may be added to arrive at a fine timing estimate. The fine timing estimate may assist with position location when there is a delay by a position location receiver in determining the user equipment's location. | 10-11-2012 |
20120264483 | Method and Apparatus for the Multimode Terminal to Monitor Paging Messages in CDMA EVDO and Frame Synchronous TD-SCDMA Networks - Certain aspects of the present disclosure propose techniques for avoiding paging interval conflicts in a multimode terminal (MMT) capable of communicating via at least two different radio access technologies (RATs). Certain aspects provide a method for communicating, by an MMT, with first and second networks via first and second RATs. The method generally includes determining a discontinuous reception (DRX) cycle length of the first network, determining a paging cycle length of the second network, determining—based on the paging cycle length and the DRX cycle length—information associated with a position of a paging interval within the paging cycle length of the second network that avoids overlap between a paging interval of the first network and the paging interval of the second network, and communicating the information to the second network. For some aspects, the information may comprise a set of control channel cycle (CCC) indices. | 10-18-2012 |
20120269161 | Method and Apparatus for Relaxing Uplink and Downlink RF Switching - A method and apparatus are disclosed to enable user equipment in a TD-SCDMA network to reduce or eliminate RF signal leakage from a transmitter to a receiver. In an aspect of the disclosure, a method includes receiving an assignment of an uplink time slot of a sub-frame and receiving an assignment of a downlink time slot of the sub-frame, wherein the uplink time slot is prevented from being sequential to the downlink time slot. In another aspect of the disclosure, a method includes receiving an assignment of an uplink time slot of a sub-frame associated with a first carrier frequency and receiving an assignment of a down-link time slot of a sub-frame associated with a second carrier frequency, wherein the first carrier frequency is prevented from being the same frequency as the second carrier frequency when the uplink time slot is sequential to the downlink time slot. | 10-25-2012 |
20120269165 | Apparatus and Method for Implementing One or More Handover Prioritizing Schemes - Avoiding collisions when executing Handover or initial access (Random access requests) due to the use of the same synchronisation code, SYNC-UL code, at the same Uplink pilot channel, UpPCH, in the same Uplink pilot Time Slot, Up-PTS, in a TD-SCDMA system. The method may comprise receiving a signal that identifies N subframes of a subframe cycle including M subframes, wherein an uplink pilot channel in each of said N identified subframes is available for initial access and a hard handover, wherein N and M are positive integers, and wherein N is less than M. Further, the method may comprise receiving a signal that identifies G synchronization codes among H available synchronization codes, wherein each of said G identified synchronization codes is available for initial access only, wherein G and H are positive integers, and wherein G is less than H. | 10-25-2012 |
20120269166 | Method and Apparatus for Power Correction in Uplink Syncronization During a TD-SCDMA Handover - A method and apparatus for adjusting and offsetting a power level of uplink transmissions from user equipment in a wireless communication system. In an aspect of the disclosure, a handoff from a source base station to a target base station includes the target base station determining a suitable power offset value and communicating this offset to the source base station. The source base station transmits a handover instruction including the offset to the user equipment (UE), and the UE transmits a synchronization code. The target base station then calculates a further power correction and transmits the correction with an acknowledgment of the synchronization code. The UE then sets the power for future transmissions based in part on the offset and correction values. | 10-25-2012 |
20120269172 | Apparatus and Method for Providing Handover Trigger Mechanisms Using Multiple Metrics - A method and apparatus for providing handover trigger mechanisms using multiple metrics in a TD-SCDMA system is provided. The method may comprise determining if a difference between a distance from a UE to a neighbor Node B and a distance from the UE to a serving Node B meets a criteria, and determining whether to perform a handover from said serving Node B to said neighbor Node B based on whether the determined difference meets the criteria. | 10-25-2012 |
20120269173 | Method and Apparatus for Resolving Paging Monitoring Conflicts in Multimode Wireless Equipment - A multimode wireless access terminal is configured to operate in idle mode while registered with a plurality of radio access technologies, for example, a TD-SCDMA network and a WCDMA network, and monitor paging messages, with a reduced likelihood of paging conflicts and missed calls. If the paging conflict is seen at a particular cell, then a cell reselection to another cell may be utilized to change the cell and avoid the conflict. Because the probability of a paging conflict is small due to the short duration of paging indicator messages, the access terminal may have very infrequent paging indicator monitoring conflicts, and when conflicts actually do occur, it is very likely that the UE will find a neighbor cell without conflict. | 10-25-2012 |
20120275329 | Method and Apparatus for Enhancement of Cell ID-Based Position Determination in TD-SCDMA Multimode Terminals - A method, an apparatus, and a computer program product for wireless communication are provided in which the method of wireless communication includes identifying a reference cell; selecting a plurality of candidate cells based on a criteria; determining a characteristic for the reference cell and the plurality of candidate cells; and setting a position based on the determined characteristic. | 11-01-2012 |
20120275380 | Methods and Apparatus for Scheduling Paging Monitoring Intervals in TD-SCDMA Multimode Terminal - Certain aspects of the present disclosure propose techniques for scheduling paging intervals in a multimode terminal (MMT) whenever a paging interval conflict between two different networks occurs. Certain aspects provide a method for communicating, by an MMT, with first and second networks via first and second radio access technologies (RATs), such as Time Division Synchronous Code Division Multiple Access (TD-SCDMA) and Code Division Multiple Access (CDMA) | 11-01-2012 |
20120275429 | Method and Apparatus for Facilitating User Equipment Backoff During Random Access Procedures - A method and apparatus for facilitating user equipment backoff during a random access procedure is provided. The method may comprise transmitting, by a user equipment (UE), at least one synchronization code to a Node B, determining that the at least one transmitted synchronization code was not acknowledged by the Node B, and modifying a maximum value of a random delay window in response to said determining. | 11-01-2012 |
20120275433 | Method and Apparatus for Explicit Signaling of Baton Handover in TD-SCDMA Systems - Physical layer bits in a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) system control a baton handover. A method for enabling a baton handover from a source cell to a target cell includes tuning an uplink from a source channel of the source cell to a target channel of the target cell. The method also includes receiving a physical layer downlink switch command to switch a downlink from the source cell to the target cell. The method further includes tuning the downlink from the source channel of the source cell to the target channel of the target cell, in response to the physical layer downlink switch command, thus implementing the handover from the source cell to the target cell. | 11-01-2012 |
20120275436 | METHOD AND APPARATUS OF PROCESSING SYNCHRONIZATION SHIFT COMMANDS IN TDSCDMA UPLINK SYNCHRONIZATION - Certain aspects of the present disclosure propose techniques for processing received downlink synchronization shift commands for timing adjustments of uplink transmissions in Time Division Synchronous Code Division Multiple Access (TD-SCDMA) wireless systems. | 11-01-2012 |
20120275437 | METHOD AND APPARATUS OF UTILIZING UPLINK SYNCHRONIZATION SHIFT COMMAND BITS IN TD-SCDMA UPLINK TRANSMISSION - Certain aspects of the present disclosure propose techniques for utilizing synchronization shift (SS) bits in Time Division Synchronous Code Division Multiple Access (TD-SCDMA) based uplink communications. The SS bits can be used for various purposes different from indicating timing of transmissions from a Node B to a user equipment. | 11-01-2012 |
20120275448 | Methods and Apparatus to Resolve Paging Monitoring Conflicts in TD-SCDMA Multimode Terminal With MIMO - Certain aspects of the present disclosure propose techniques for resolving paging interval conflicts between two different radio access technology (RAT) paging intervals and for avoiding missing paging messages for a multimode terminal (MMT). Certain aspects provide a method for detecting messages associated with paging, by an MMT supporting multiple-input multiple-output (MIMO), from first and second networks using first and second RATs, such as Time Division Synchronous Code Division Multiple Access (TD-SCDMA) and Code Division Multiple Access (CDMA) 1xRTT (Radio Transmission Technology), Evolution-Data Optimized (EVDO), or Wideband CDMA (WCDMA). The method generally includes using a first MIMO receive chain of the MMT to detect a first message associated with paging from the first network and simultaneously using a second MIMO receive chain of the MMT, different from the first receive chain, to detect a second message associated with paging from the second network. | 11-01-2012 |
20120281678 | Avoidance of Synchronization Oscillation in TD-SCDMA Uplink Synchronization - Avoidance of uplink synchronization oscillation in TD-SCDMA systems begins when a user equipment receives a downlink SS command from a Node B. The user equipment obtains a previous uplink timing, which may be from a previous sub-frame associated with the downlink SS command. The user equipment would obtain this previous sub-frame associated with the SS command directly from the Node B as an identification of the Node B's sub-frame delay. The user equipment will then calculate the uplink timing for its next updated uplink signal by combining the previous uplink timing with the synchronization adjustment associated with the SS command. The user equipment then transmits its next uplink signal using the new uplink timing. | 11-08-2012 |
20120281682 | Method and Apparatus for Improving Synchronization Shift Command Transmission Efficiency in TD-SCDMA Uplink Synchronization - A method of wireless communication includes receiving a signal associated with a frequency for adjusting timing and adjusting the timing based on the frequency. The frequency is less than once every 8 subframes. | 11-08-2012 |
20120287831 | REDUCING POWER CONSUMPTION IN MULTI-THREADED PROCESSOR MOBILE DEVICES - In a multi-threaded processor mobile device, power consumption is reduced by matching a number of active processing resources with the data rate capability of a serving base station. The number of active resources may be adjusted to increase the amount of time the mobile device is in an all-waits period, where its processors are all idle at the same time. Increasing the all-waits time increases power savings. The mobile device may reduce the number of active resources to reduce power consumption or may increase the number of active resources temporarily in order to increase an all-waits period. The mobile device may also operate in a low power state by adjusting its active resources and operating at a reduced data rate, which is communicated to a base station. | 11-15-2012 |
20120287917 | Common Channel Configuration to Facilitate Measurement for Handover in TD-SCDMA Systems - A method of wireless communication includes communicating information with a neighbor Node B in a subframe. The information is associated with uplink timing. The method includes communicating with a serving Node B in the subframe. | 11-15-2012 |
20120294288 | Apparatus and Method for Facilitating Dynamic Time Slot Allocation - A method and apparatus for facilitating dynamic time slot allocation is provided. The method may comprise receiving an assignment of at least one of a downlink time slot or an uplink time slot, wherein the downlink time slot is selected based on at least one of a number of used code channels in the downlink time slot, or a downlink transmit power, and wherein the uplink time slot is selected based on at least one of a number of used code channels in the uplink time slot, intra-cell interference, or other-cell interference. | 11-22-2012 |
20130010656 | CELL RESELECTION FOR SIMULTANEOUS -LTE AND TD-SCDMA COMMUNICATIONS - In a wireless communication system, a user equipment (UE) may be capable of communication on multiple radio access networks. A UE may be in simultaneous communication with one radio access network, such as TD-SCDMA for circuit-switched voice calls and with another radio access network, such as TDD-LTE for packet-switched data communications. When the TDD-LTE network is idle, the UE may evaluate signal strength of the respective network for potential cell reselection. The UE may measure only a serving TD-SCDMA cell for purposes of switching packet-switched service to the TD-SCDMA network, thereby avoiding a situation where the UE attempts to connect to a different TD-SCDMA cell for purposes of packet-switched communications than the cell presently affiliated with the UE for circuit-switched communications. | 01-10-2013 |
20130010663 | HANDOVER FOR A MULTI-MODE MOBILE TERMINAL TO OPERATE IN CDMA 1X AND WiMAX OVERLAID NETWORKS - Aspects of the present disclosure allow a mobile station (MS) to maintain data activity while performing handover operations within the WiMAX network and listening to a CDMA 1x paging cycle. According to aspects, the MS maintains timing of a base station (BS) in a first radio access technology (RAT) and a BS in a second RAT. The MS may determine an expected timing of a paging cycle in the second RAT and send a sleep request to the BS in the first RAT such that the sleep interval coincides with the timing of the paging cycle in the second RAT. The MS may perform operations to ensure a sleep interval, after performing handover operations, coincides with the timing of the paging cycle in the second RAT. | 01-10-2013 |
20130028081 | METHOD AND APPARATUS FOR BALANCING LOAD AND REDUCING CALL BLOCKING IN A TD-SCDMA SYSTEM - A method, an apparatus, and a computer program product for wireless communication are provided in connection with providing a process for balancing loads and reducing call blocking in a TD-SCDMA network. In one example, a user equipment (UE) is equipped to obtain a received signal code power (RSCP) value and a load factor value for each of one or more cells. The UE may be further equipped to rank the one or more cells based on a cell selection value derived from both the RSCP value and the load factor value and select a serving cell from the ranked one or more cells. | 01-31-2013 |
20130034080 | METHOD FOR FAST RETURN TO SOURCE RAT (RADIO ACCESS TECHNOLOGY) AFTER REDIRECTION TO TARGET RAT - A method of wireless communication includes receiving redirection information, from a source radio access technology (RAT), to set up a connection in a target RAT. The redirection information includes a fast return indication. A UE returns to the source RAT in accordance with the fast return indication after call release in the target RAT. | 02-07-2013 |
20130040666 | METHODS AND APPARATUS FOR SCHEDULING PAGING MONITORING INTERVALS IN A MULTIMODE MOBILE STATION - Certain aspects of the present disclosure present methods and apparatus for resolving conflict between paging intervals of two different networks. For certain aspects, a multimode mobile station (MS) may select a network for monitoring based on a predefined criterion. For an aspect, the multimode MS may select a network whose paging interval starts earlier or a network whose paging interval finishes earlier. The multimode MS may also select a network that has a higher signal quality, or higher radio access technology (RAT)-based priority. In another aspect, if the multimode MS uses multiple input multiple output (MIMO), the multimode MS may split its available resources (e.g., receive chains) to simultaneously monitor paging signals transmitted by both networks. | 02-14-2013 |
20130044731 | Proactive Feedback Transmissions During Handover Procedures - Methods, systems, and devices are described for utilizing proactive feedback information during a handover of a mobile device from a source base station to a target base station. The mobile device may transmit handover messages to the target base station that includes feedback status information, which may include automatic repeat request (ARQ) information elements in some embodiments. The target base station may request that the source base station transmit packets to the target base station based on the received feedback status information. The source base station may transmit handover messages to the mobile device that include feedback status information in some embodiments. Some embodiments may provide for fast resumption of data transmission by utilizing the proactively sent feedback status information from a mobile device to a base station during handover. Some embodiments may reduce the bandwidth for transferring unnecessary data between base stations. | 02-21-2013 |
20130070656 | Method and Apparatus for the Multimode Terminal in Idle Mode Operation in CDMA 1XRTT and Frame Asynchronous TD-SCDMA Networks - Method and apparatus for the multimode terminal (MMT) in idle mode operation in CDMA 1xRTT and frame asynchronous TD-SCDMA networks techniques for scheduling paging intervals in the multimode terminal to reduce paging interval conflicts. The method generally includes determining a circuit-switched (CS) discontinuous reception (DRX) cycle length of the first network ( | 03-21-2013 |
20130077545 | APPARATUS AND METHOD FOR CONFIGURING RADIO RESOURCES IN SLEEP MODE - Methods and apparatuses are provided for configuring resources at a device operating in a sleep mode of a wireless network. The device can use at least some of the resources for other purposes, such as scanning neighbor base stations, acquiring system parameters of the wireless network or other networks, etc., based in part on requirements of a current interval of the sleep mode. In an available interval, a serving base station may attempt to communicate with the device, and thus, the device can keep at least one receiver chain tuned to the serving base station while assigning other resources to communicate with other base stations. In an unavailable interval, the device can assign all resources for communicating with the other base stations. | 03-28-2013 |
20130077601 | METHOD AND APPARATUS FOR FACILITATING COMPRESSED MODE COMMUNICATIONS - A method and apparatus for facilitating compressed mode communications is provided. The method may comprise receiving a compressed mode indication message, and activating a compressed mode in response to the received compressed mode indication message. | 03-28-2013 |
20130084863 | METHOD TO SELECT MS IN OVERLOAD CONTROL TRIGGERED BASE STATION INITIATED HANDOVER IN WIMAX SYSTEMS - Certain aspects of the present disclosure provide methods and apparatus that may help alleviate load conditions by taking action to select one or more mobile stations (MSs) for handover to a neighbor base station are provided. | 04-04-2013 |
20130095819 | METHOD AND APPARATUS FOR PERFORMING NEIGHBORING CELL MEASUREMENTS IN WIRELESS NETWORKS - Methods and apparatuses are provided that include selecting measurement types for measuring neighboring cells based in part on a change in device location. Where a change in location is relatively small, a device can perform less precise more efficient measurements of the neighboring cells to conserve power and/or processing time than where the change in location is larger. The neighboring cells can operate on a difference frequency than a serving cell; thus, measuring the neighboring cells using more precise measurements can utilize radio frequency (RF) calibration over the different frequency. Where a change in device location is below a threshold, however, less precise measurements that do not use RF calibration can be utilized to measure the neighboring cells. | 04-18-2013 |
20130095831 | METHODS, SYSTEMS, AND DEVICES FOR DETERMINING A CLOSEST BASE STATION TO A MULTI-MODE MOBILE DEVICE - Embodiments provide methods, systems, and/or devices to identify and/or determine a closest base station to a multi-mode mobile device among the multiple wireless communications technologies, such as different Radio Access Technologies (RATs). Having identified a closest base station to the multi-mode mobile device among the multiple wireless communications technologies, the mobile device's location may be estimated using location information regarding the closest identified base station. In some cases, a handover or other procedure may be performed with respect to the mobile device and the closest identified base station. The multiple wireless communications technologies may include, but are not limited to, WiMAX, CDMA 1x, LTE, and/or EVDO. | 04-18-2013 |
20130095832 | METHOD AND APPARATUS FOR MEASURING CELLS IN AN IDLE OR SLEEP MODE - Methods and apparatuses are provided for communicating with multiple base stations in idle or sleep mode communications. During such modes, antennas or related resources of a device can be assigned for receiving signals from a source base station, such as paging or similar signals, or for measuring other base stations. The resource assignment can be determined based on the mode or a related time interval, one or more additional factors, such as a signal quality at the source base station, and/or the like. | 04-18-2013 |
20130107774 | METHODS AND APPARATUS FOR DETERMINING AND ENTERING POWER SAVING MODE IN A WIRELESS NETWORK | 05-02-2013 |
20130107802 | DOWNLINK TIME DIFFERENCE DETERMINATION IN FRAME ASYNCHRONOUS SYSTEMS | 05-02-2013 |
20130107859 | AVOIDING VOICE OVER INTERNET PROTOCOL (VoIP) PACKET LOSS DUE TO INTER-RADIO ACCESS TECHNOLOGY (RAT) HANDOVER | 05-02-2013 |
20130107860 | REDUCING SERVICE INTERRUPTION OF VOICE OVER INTERNET PROTOCOL (VoIP) CALLS DUE TO INTER-RADIO ACCESS TECHNOLOGY (RAT) HANDOVER | 05-02-2013 |
20130109343 | POWER EFFICIENT EMERGENCY CALL TRIGGERED TRACKING METHOD | 05-02-2013 |
20130109379 | METHOD AND APPARATUS FOR SCANNING BASE STATIONS | 05-02-2013 |
20130109385 | METHOD, APPARATUS, AND SYSTEM FOR LOCATING CO-LAYER NETWORK, MULTI-RADIO ACCESS TECHNOLOGY SERVING BASE STATION IDENTIFICATION | 05-02-2013 |
20130109393 | METHODS AND APPARATUS FOR INTER-RAT HANDOVER BY A MULTIMODE MOBILE STATION | 05-02-2013 |
20130121172 | POWER SAVINGS BASED WIRELESS TRAFFIC CONTROLLER FOR MOBILE DEVICES - Aspects of the present disclosure provide methods for power saving at a mobile station by a software module. A software module, residing between an application subsystem and a modem of a mobile station, may buffer uplink data to create power savings in an efficient and dynamic manner. During power saving, the software module may buffer data during modem unavailable intervals and may transmit the buffered data during the modem available intervals. | 05-16-2013 |
20130121179 | ENHANCED TRANSPORT FORMAT COMBINATION IDENTIFIER SELECTION TO IMPROVE TD-SCDMA HSUPA THROUGHPUT - In time division-synchronous code division multiple access high speed uplink packet access (TD-SCDMA HSUPA) communications, a user equipment may select a enhanced physical uplink channel (E-PUCH) modulation scheme based on allocated radio resources. Selection of the modulation scheme is configured to avoid ambiguity at the base station as to which modulation type is selected. Ambiguity may arise in certain communication conditions. Those conditions may be determined and avoided to avoid the ambiguity at the base station. | 05-16-2013 |
20130142058 | USING TD-SCDMA CONTINUOUS TIME PERIOD TO FACILITATE TD-SCDMA TO GSM WIRELESS HANDOVER - Wireless communication is implemented by a multi-mode user equipment (UE). The method includes selecting a continuous time period during a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) voice call. The voice call is via a Node B. The selected continuous time period includes multiple subframes. The method also includes preventing the UE from communicating with the Node B during the selected continuous time period, or at least preventing downlink communications with the Node B. The method further includes acquiring a Global System for Mobile communications (GSM) signal from at least one GSM cell during the selected continuous time period. The UE can handover to a selected GSM cell based on the measurements of the acquired GSM cell(s). | 06-06-2013 |
20130176866 | CALL RECOVERY IN TD-SCDMA HANDOVER FAILURE - A method of wireless communication includes measuring and recording a path loss of a first downlink signal from a source base station, prior to attempting handoff from the source base station to a target base station. The path loss of a second downlink signal from the source base station is measured after unsuccessful handoff from the source base station to the target base station. A UE communicates with the source base station, after unsuccessful handoff, using an uplink timing corresponding to an uplink timing recorded prior to attempting handoff when a difference between the path loss of the first downlink signal and the path loss of the second downlink signal fails to meet a threshold value. A new uplink timing is used when the difference meets the threshold value. | 07-11-2013 |
20130201885 | Short Random Access Channel (RACH) Disabling in TDD-LTE - In TDD-LTE wireless systems, an additional fourth preamble for the random access channel, called short RACH, may be used. If short RACH signaling is to be used, the random access preamble is transmitted in the uplink pilot time slot (UpPTS) field in the special subframe. The location of the uplink pilot time slot (UpPTS) is next to a downlink subframe. Therefore, interference from neighbor base stations may interfere with the short RACH preamble within the uplink pilot time slot. The interference to the short RACH will prevent the eNodeB from detecting the short RACH preamble and thus prevent the UE from accessing the network. An interference level on an Uplink Pilot Time Slot (UpPTS) may be measured and when the interference level exceeds a threshold value a User Equipment (UE) is instructed to disable short Random Access Channel (RACH) signaling. The UE may then be instructed to enable normal RACH. When the interference level falls below the threshold value the UE is instructed to resume short RACH signaling | 08-08-2013 |
20130201963 | RECEIVING GSM TIMING INFORMATION FROM TD-SCDMA BASE STATION TO FACILITATE TD-SCDMA TO GSM WIRELESS HANDOVER - Wireless communication is implemented by a multi-mode user equipment (UE). The method includes receiving cross reference timing information indicating a relationship between Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) timing and GSM timing. The method further includes acquiring a Global System for Mobile communications (GSM) signal from at least one GSM cell, based on the cross reference timing information. The UE can handover to a selected GSM cell based on the measurements of the acquired GSM cell(s). | 08-08-2013 |
20130223239 | IRAT MEASUREMENT METHOD WHEN IN TD-SCDMA CONNECTED MODE - When a user equipment (UE) is operating in connected mode in a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network all time slots may be allocated to communications, leaving insufficient time for the UE to perform measurement of neighboring radio access technologies (RATs). When the UE moves out of TD-SCDMA coverage, it may report to the base station and receive an instruction to switch into time division multiplexing (TDM) mode and to perform inter-RAT measurement while in TDM mode. | 08-29-2013 |
20130223354 | HS-SCCH AND HS-SICH ALLOCATION AND MONITORING IN TD-SCDMA MULTI-CARRIER SYSTEMS - In multi-carrier wireless communications control channels are coordinated onto a single reference frequency for scheduling communications with mobile devices. Mobile devices may monitor all available control channels on a single reference frequency rather than over multiple frequencies, thereby reducing CPU processing and power consumption. | 08-29-2013 |
20130223428 | METHOD AND APPARATUS FOR IRAT MEASUREMENT WHEN IN TD-SCDMA CONNECTED MODE - When a user equipment (UE) is operating in connected mode in a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network all time slots may be allocated to communications, leaving insufficient time for the UE to perform measurement of neighboring radio access technologies (RATs). The UE may select one out of every N number of transmit time intervals (TTIs) to halt regular communication and reserve that TTI for purposes of inter-RAT measurement. | 08-29-2013 |
20130329575 | CHANNEL QUALITY REPORTING - In certain communication systems, such as TD-HSDPA communications, channel quality index (CQI) reporting is based on a predetermined configuration, such as a mobile device (UE) reporting a CQI for a most recently received data transmission. This configuration may lead to errors if a UE reports a CQI for a certain data transmission but the base station (node B) believes the CQI corresponds to a different data transmission, such as a later transmission the UE never received due to an error processing control channel information. Offered is an indicator to accompany CQI reports. The indicator indicates to the node B which communication resource corresponds to the CQI report. | 12-12-2013 |
20130336183 | POWER SAVINGS FOR INTER-RADIO ACCESS TECHNOLOGY MEASUREMENT - A user equipment may save power and improve performance by dynamically switching between a higher and lower clock speed based on the timing of inter-RAT measurement. When a user equipment (UE) is not performing an inter-RAT measurement, the UE uses a clock speed lower than the clock speed associated with inter-RAT measurements. This power saving mode associated with the lower clock speed implementation may be maintained as a default mode when the UE is not performing inter-RAT measurements. The UE may use the higher clock speed when a particular processor power is specified for inter-RAT measurement. | 12-19-2013 |
20130336293 | SCHEDULING INFORMATION REPORTING IN TD-HSUPA SYSTEMS - A method to improve the sending of scheduling information, particularly for Time Division-High-Speed Uplink Packet Access (TD-HSUPA) operation is described. When T-WAIT is configured at a large value which is above a threshold, and when the UE transitions from having a grant to not having a grant, and the TEBS is larger than zero, if the UE does not receive a grant within a time window, the UE may send scheduling information via the E-RUCCH without waiting for the T-WAIT timer to expire. | 12-19-2013 |
20140003257 | POWER AWARENESS MEASUREMENT IN TIME DIVISION SYNCHRONOUS CODE DIVISION MULTIPLE ACCESS | 01-02-2014 |
20140003259 | REDUCED USER EQUIPMENT MEASUREMENT FREQUENCY | 01-02-2014 |
20140003311 | USER PRESENCE DRIVEN POWER SAVING IN TIME DIVISION SYNCHRONOUS CODE DIVISION MULTIPLE ACCESS | 01-02-2014 |
20140029582 | METHOD AND APPARATUS FOR A POWER CONTROL MECHANISM - A user equipment (UE) may reduce the difference in transmit power between the uplink channel and enhanced high speed channel so that the base station may decode the uplink channel. The UE may determine the transmit power level for the uplink channel, such as dedicated physical channel, and the transmit power level for the enhanced high speed channel, such as shared information channel, and reduce the power difference when the power difference is greater than a threshold. The power difference may be reduced by increasing or decreasing the power of the enhanced high speed channel and/or increasing or decreasing the power of the uplink channel. | 01-30-2014 |
20140036710 | INTER-RAT MEASUREMENTS FOR A DUAL-SIM DUAL-ACTIVE DEVICE - A method of wireless communication is presented. The method includes monitoring a first RAT for a first paging message with a first receive chain. The method also includes monitoring a second RAT for a second paging message with a second receive chain. The method further includes performing, for the first SIM, an inter-frequency/inter-RAT measurement for the first RAT. The method still further includes performing, for the second SIM, an inter-frequency/inter-RAT measurement for the second RAT. | 02-06-2014 |
20140038569 | COMBINING VOICE CALLS IN A MULTI-SIM DEVICE - A process includes receiving a first communication on a first call associated with a first subscriber identity module (SIM) in an user equipment (UE). The process further includes receiving a second communications on a second call associated with a second SIM in the UE. The process also includes outputting from the UE the received first communications and the received second communications. The process further includes selectively transmitting communications from the UE to an active call selected from one of the first call or the second call. | 02-06-2014 |
20140038666 | RECEIVING MULTIPLE VOICE CALLS IN A MULTI-SIM DEVICE - A method of wireless communication is presented. The method includes communicating on an active call associated with a first subscriber identity module. The method also includes maintaining an inactive call associated with a second subscriber identity module in a connected state. The inactive call is not using a microphone and speaker of a UE. The method further includes storing received voice frames of the inactive call. | 02-06-2014 |
20140056155 | INTER RAT MEASUREMENT FROM IDLE TO CONNECTED STATE - A user equipment (UE) may perform an advanced inter radio access technology (IRAT) measurement of a target cell when the UE transitions from an idle state to a connected state of a serving cell to reduce delay. In such instances, the UE compares the serving cell signal metric to a threshold. The advanced measurement may be performed when the serving cell signal metric, e.g., serving cell received signal code power (RSCP), is below the threshold. | 02-27-2014 |
20140056217 | INTELLIGENT INTER RADIO ACCESS TECHNOLOGY MEASUREMENT REPORTING - A user equipment (UE) may scale down a signal strength of a radio access technology (RAT) cell in a report to a serving cell to avoid multiple connection attempts to the same radio access technology cell. The UE may initiate a predefined timer, called a target cell timer, on which the scaling down of the reported signal strength of the particular RAT cell is based. The timer is initiated when the UE returns back to the serving cell after failure to access a top ranked RAT neighbor cell. | 02-27-2014 |
20140064117 | UPLINK SYNCHRONIZATION IN A MULTI-SIM USER EQUIPMENT - A method of wireless communication in a dual subscriber identification module (SIM) terminal includes transmitting a first synchronization message from a first module associated with a first SIM. The method also includes receiving a first acknowledgment (ACK) message on a fast physical access channel (FPACH) in response to the first synchronization message. The method further includes sharing timing information included in the first ACK between the first module and a second module. | 03-06-2014 |
20140064122 | METHODS AND APPARATUS FOR UTILIZING TD-SCDMA IDLE INTERVALS IN TDD-LTE MEASUREMENT OPERATIONS - Methods and apparatus are provided for utilizing an idle interval of a first radio access network (RAN) for performing measurements in a second RAN. For certain aspects, the first and second RANs may be a Time Division—Synchronous Code Division Multiple Access (TD-SCDMA) network and a Time Division Duplex Long Term Evolution (TDD-LTE) network, respectively. With efficient use of the first RAN's idle interval, increased power savings or increased system throughput may be achieved. | 03-06-2014 |
20140071842 | USING DOWNLINK TFCI TO GENERATE A LARGER IDLE INTERVAL - A method of wireless communication is presented. The method includes receiving a transport format combination indicator (TFCI) indicating a number of blocks and a block size for data to be sent on downlink time slots of a current frame and/or a subsequent frame. The method also includes determining when data is not expected to be received on an allocated downlink time slot and performing neighbor cell measurement during the allocated downlink time slot. | 03-13-2014 |
20140071938 | CONFIRMATION OF BASE STATION IDENTIFICATION TO IMPROVE HANDOVER - A method of wireless communication is presented. The method includes receiving an operating frequency and base station identification code (BSIC) for a neighboring base station, determining an expected received signal based from the operating frequency and BSIC, comparing a received signal with the expected received signal, and reporting a result of the comparing. | 03-13-2014 |
20140071939 | INTRA FREQUENCY CELL RESELECTION IN TD-SCDMA - A user equipment (UE) may reduce reselection delays when the UE is in the idle mode. In such instances, the UE adaptively adjusts a cell reselection timer based at least in part on the availability of a downlink time slot resource. The adjustment of the cell reselection timer may be based at least in part on the availability of the downlink time slot resources. The cell reselection timer is adjusted (e.g., shortened or scaled down) when the downlink time slot resources are unavailable to the UE. | 03-13-2014 |
20140080474 | BASE STATION IDENTITY CONFIRM AND RECONFIRM PROCEDURE - A user equipment (UE) may skip performance of base station identity code (BSIC) confirm and reconfirm procedure for a neighbor cell to conserve UE battery power. In such instances, the UE compares a serving cell signal metric to a dynamic threshold. The BSIC confirm and reconfirm procedure for the neighbor cell may be skipped when the serving cell signal metric is above the dynamic threshold. | 03-20-2014 |
20140086076 | IDLE TIME SLOT ALLOCATION FOR IRAT MEASUREMENT IN TD-HSDPA - A user equipment (UE) dynamically adjusts a decoding time to accommodate a delay associated with decoding a high-speed shared control channel (HS-SCCH) to avoid wasting idle time slots that would otherwise be deemed busy time slots. The UE determines a dynamic protection line that extends beyond a last time slot of a subframe. The dynamic protection line is calculated based on an amount of time to complete the processing and decoding of a control information. This dynamic protection line provides a dynamically determined delay for decoding the HS-SCCH. | 03-27-2014 |
20140119211 | ALLOCATION OF VOICE IDLE TIME PERIOD FOR INTER-RAT MEASUREMENT - To create gaps in communication activity to perform inter radio access technology (IRAT) measurement, a user equipment may isolate silent periods during voice communications. During those silent periods, instead of transmitting special bursts with erasure packets indicating silent periods, the UE may allocate the time slots that would otherwise have sent the special bursts and indicate those slots as idle so they may be used for other purposes, such as IRAT measurement. | 05-01-2014 |
20140119343 | DUAL RECEIVE PAGING MONITORING PROCEDURE - A user equipment capable of communicating on multiple radio access technologies (RATs) may receive conflicting paging occasions for each RAT. That is, the paging occasions may occur at sufficiently overlapping times such that a user equipment may not dedicate all its receive resources to each paging occasion. In such instances, a user equipment may divide receive resources among the RATs to receive pages even in the face of paging occasion conflicts. | 05-01-2014 |
20140119344 | ADAPTIVE ALLOCATION OF IDLE SLOTS BASED ON ERROR RATE - To create additional communication gaps for a user equipment to perform inter-radio access technology (inter-RAT) measurement, the user equipment may discontinue communications during time slots of specific transmission time intervals (TTIs) based on a block error rate of a previous TTI. The time of the discontinued communications may then be allocated for inter-RAT measurement. | 05-01-2014 |
20140120959 | ADJUST PAGING INDICATOR CHANNEL DETECTION THRESHOLD DEPENDING ON REMAINING BATTERY LEVEL - A user equipment may save power and improve performance by adjusting a paging indicator detection threshold of power at which a user equipment (UE) determines a paging indicator channel transmission is received when detecting a signal on a paging indicator channel. The adjustment may be based on the UE's remaining battery power. When the battery power level is low, the threshold is increased to reduce false detections. When the battery power level is high, the threshold is decreased to increase the likelihood of detecting the signal on a paging indicator channel. | 05-01-2014 |
20140140223 | INTER RADIO ACCESS TECHNOLOGY (IRAT) MEASUREMENT - A user equipment (UE) may perform an inter radio access technology (IRAT) measurement in time slots not deemed to be carrying critical data. In such instances, the UE only transmits and decodes critical data in the critical time slots when a serving cell signal is low for a determined period of time. Otherwise, when the time slots do not carry critical data, i.e., non-critical time slots, the UE stops transmitting and decoding and uses the non-critical time slots for IRAT measurement. | 05-22-2014 |
20140140226 | IRAT MEASUREMENT REPORTING METHOD IN TD-SCDMA - A user equipment (UE) considers both the signal strength in time slot zero and the signal quality of the downlink traffic time slots when determining whether to send an IRAT measurement report to trigger IRAT handover to GSM. | 05-22-2014 |
20140141780 | FREQUENCY LIST UPDATING FOR FAST RETURN TO WIRELESS NETWORK - A method of wireless communication receives a frequency list for fast return when in idle mode in a first radio access technology (RAT). The method updates the frequency list for fast return to the first RAT while in connected mode in the first RAT. The update is based on inter and intra frequency measurement control messages from each serving base station during mobility. | 05-22-2014 |
20140146796 | BUFFER SIZE REPORTING IN TIME DIVISION HIGH SPEED UPLINK PACKET ACCESS (TD-HSUPA) SYSTEMS - A method of wireless communication reports buffer size in TD-HSUPA networks. A protocol data unit is transmitted and an artificial buffer size is reported in response to the transmitted PDU. The artificial buffer size corresponds to the size of a scheduling request. The actual buffer size is reported when a NACK is received or when a round trip timer expires. The actual buffer size corresponds to a PDU retransmit size. | 05-29-2014 |
20140148148 | INTER RADIO ACCESS TECHNOLOGY (IRAT) MEASUREMENT TO IMPROVE USER EQUIPMENT (UE) BATTERY PERFORMANCE - A method of wireless communication enables an inter-radio access technology (IRAT) neighbor cell measurement when a serving RAT signal strength is continuously below a first threshold value for a first length of time. The method also disables the IRAT neighbor cell measurement when the serving RAT signal strength is continuously above a second threshold value for a second length of time. | 05-29-2014 |
20140148163 | INTER-RADIO ACCESS TECHNOLOGY (IRAT) HANDOVER - A user equipment (UE) acquires a time of a first cell of a first RAT and receives instructions to handover from a source RAT to the first cell of a first target RAT. The handover is delayed based on the acquired timing and the UE communicates on the source RAT during the delay. | 05-29-2014 |
20140148164 | ADAPTIVE FREQUENCY LIST FOR PSEUDO-FAST RETURN IN A COMMUNICATION SYSTEM - A user equipment (UE) is configured to maintain an updated frequency list for pseudo-fast return handover. The UE receives a frequency list for pseudo fast return when the UE is in an idle mode in a first radio access technology (RAT). When the UE is in a connected mode in a second RAT, the list is updated based on actual UE inter- and intra-frequency measurements of the first RAT during mobility. | 05-29-2014 |
20140161104 | DYNAMIC HYSTERESIS SELECTION - A method of wireless communication includes determining an operating parameter of a mobile device. The method also includes dynamically setting a hysteresis for a gain state of a power amplifier (PA) based at least in part on the determined operating parameter. The hysteresis may include a power level hysteresis and a temporal hysteresis | 06-12-2014 |
20140171070 | EXPANDED NEIGHBOR LIST FOR CELL RESELECTION - A user equipment (UE) may expand a neighbor list available to the UE to avoid neighbor information error caused by an unexpected leakage of distant time division synchronous code division multiple access (TD-SCDMA) cells. The neighbor list, may be expanded by combining previously received neighbor information with currently received neighbor information. In some instances, a new serving cell may be selected from the previously received neighbor list instead of the currently received neighbor list. | 06-19-2014 |
20140192661 | SCHEDULE RATE OF SYNCHRONIZATION CHANNEL (SCH) BASE STATION IDENTITY CODE (BSIC) - The scheduling rate of the synchronization channel (SCH) base station identity code (BSIC) is adapted based on target cell signal metric such as, the signal quality and/or signal strength. The scheduling rate is decreased when the target cell metric is below a first threshold value and is increased when the target cell metric is above a second threshold value. The scheduling rate may also be adapted based on a serving cell signal metric. | 07-10-2014 |
20140204772 | BACKGROUND PUBLIC LAND MOBILE NETWORK SEARCH - A user equipment may reduce its wakeup time by performing at least a portion of a background public land mobile network (PLMN) search in conjunction with an inter-frequency and/or intra-frequency measurement. In such instances, the UE performs the background PLMN search subsequent to an inter-frequency and/or intra-frequency measurement using a radio frequency (RF) tuning and timing of the inter-frequency and/or intra-frequency measurement. | 07-24-2014 |
20140213245 | PARALLEL INTER-RADIO ACCESS TECHNOLOGY (IRAT) MEASUREMENT IN A COMMUNICATION SYSTEM - A UE is configured to collect multiple absolute radio frequency channel numbers (ARFCNs) in parallel via a wideband receiver during a transmission gap. Inter-radio access technology (IRAT) measurements are performed based on the collected AFRCN samples. | 07-31-2014 |
20140213254 | ADAPTIVE TIMING FOR TRIGGERING GSM TO TD-SCDMA CELL RESELECTION - A method of wireless communications includes determining a period of time to trigger inter-radio access technology (IRAT) cell reselection. The method also includes adjusting the period of time accordingly, in which the adjusting is based on a target cell signal strength, the target cell belonging to a different RAT than a source cell. The period of time may also be determined based on the source cell signal strength and/or target cell signal strength, and adjusted accordingly. | 07-31-2014 |
20140213282 | METHODS AND APPARATUS FOR DETERMINING A LOCATION OF A MOBILE STATION - Methods and apparatuses are presented for determining a location of a mobile station. In some embodiments, a mobile station may acquire at least one attribute of a reference base station to obtain the identity of the reference base station. A first and a second locally unique attribute of a local base station may then be acquired. The mobile station may then compute a distance metric from the mobile station to the reference base station based on the at least one attribute, and the first and second locally unique attributes. The location of the mobile station may be determined based at least in part on the distance metric. In some embodiments, the distance metric may include a number of how many base stations away (i.e. “hops” or number of handovers) the mobile station is from the reference base station. | 07-31-2014 |
20140220984 | METHOD OF PREDICTING SUITABLE CANDIDATES FOR USER EQUIPMENT CELL RESELECTION IN MOBILE NETWORKS BASED ON THE DIRECTION OF MOVEMENT - Methods and apparatuses for predicting candidates for cell reselection are presented. In some embodiments, such a method may include determining, by a mobile device, a current direction of motion of the mobile device; determining, by the mobile device, based on network topology information, that at least two cells of a plurality of cells are located in the current direction of motion of the mobile device; prioritizing, by the mobile device, the at least two cells of the plurality of cells for reselection; measuring, by the mobile device, signal properties of the at least two prioritized cells based on the prioritizing; and selecting, by the mobile device, a first cell of the at least two prioritized cells for reselection, based on: a location of the first cell and the signal properties of the first cell. | 08-07-2014 |
20140241143 | EARLY TERMINATION OF A BASE STATION IDENTITY CODE PROCEDURE IN TD-SDCMA - An early BSIC (base station identity code) abort procedure includes comparing a first signal strength of a serving cell with a first threshold and comparing a second signal strength of a target cell to a second threshold. The first threshold is a sum of a network indicated threshold and a user equipment (UE) threshold. The second threshold is a difference between the network indicated threshold and the UE threshold. When the first signal strength is below the first threshold and the second signal strength is above the second threshold, the base station identity code (BSIC) procedure is initiated. A number of BSIC failure attempts is adaptively set before terminating the BSIC procedure. | 08-28-2014 |
20140241327 | ADJUSTING INITIAL TRANSMIT POWER FOR HIGH SPEED DATA TRANSMISSION - A method of wireless communication adjusts the transmit power for high speed data communications. A UE determines whether a random access channel is configured on an uplink traffic time slot. When the random access channel is configured on the uplink traffic time slot, the UE transmits a high speed data channel with adjusted transmit (TX) power based at least in part on transmit power used for a scheduling request. | 08-28-2014 |
20140242982 | MEASUREMENT REPORTING TO AVOID STRONG INTERFERENCE - A measurement reporting method to avoid strong interference includes measuring all cells on a neighbor frequency indicated by a network on a neighbor list. A first and second set of cells are identified. The identified first set of cells are from the neighbor list and have a first signal strength a first predefined amount above a serving cell signal strength. The second set of cells are not on the neighbor list and have a second signal strength above a first threshold signal value. The first signal strength of the first set of cells and the second signal strength of the second set of cells are compared to determine whether to send a measurement report for the first set of cells. | 08-28-2014 |
20140242988 | UPDATING A BASE REFERENCE POWER FOR HIGH SPEED DATA RESUMPTION - A method of wireless communication includes returning to a base station after a handover failure. The method also includes measuring a length of time between receiving a handover command and returning to the base station. The method further includes setting a physical uplink channel transmit power based on the measured length of time. The physical uplink channel can be an enhanced physical uplink channel (E-PUCH) of a high speed uplink packet access (HSUPA)wireless network. | 08-28-2014 |
20140247732 | ABSOLUTE GRANT CHANNEL FOR IRAT MEASUREMENT IN A HIGH SPEED DATA NETWORK - A method for handling grants includes communicating with a first radio access technology (RAT). An uplink grant that corresponds to at least one uplink timeslot overlapping with a measurement signal from a second RAT is discarded. The discarding of the uplink grant is based at least in part on a signal quality of the first RAT. Measurement of the second RAT during the at least one uplink timeslot is performed. | 09-04-2014 |
20140247733 | BUFFER SIZE REPORTING FOR IRAT MEASUREMENTS IN HIGH SPEED DATA NETWORKS - An intelligent buffer size reporting process includes determining whether a signal strength of a first radio access technology (RAT) is below a first threshold value. A false buffer size of zero is reported when the signal strength of the first RAT is below the first threshold value for a period of time. A signal strength of a second RAT is measured using uplink timeslots resulting from the reported false buffer size of zero. | 09-04-2014 |
20140248876 | GSM BASE STATION IDENTITY CODE (BSIC) METHOD FOR IRAT CELL RESELECTION TO CONSERVE UE BATTERY POWER - A measurement reporting method reduces battery waste. A UE receives a list of GSM neighbor cells and measures the signal strength of each of the GSM cells in the list. The UE performs base station identity code (BSIC) confirm/reconfirm procedures only for the cells having a signal strength above a threshold. | 09-04-2014 |
20140254399 | MEASUREMENT REPORTING IN A WIRELESS NETWORK - A measurement reporting method includes measuring a first signal from a first neighbor base station until a first timer expires. Also measured is a second signal from a second neighbor base station until a second timer expires. The first signal is compared with the second signal. A measurement report of the first signal is delayed when the second signal is better than the first signal and the first timer expires prior to the second timer. | 09-11-2014 |
20140254442 | GSM TONE DETECTION - A method for tone detection includes wireless communicating on a first radio access technology (RAT). A determination is made of whether a gap generated by at least one idle timeslot in the first RAT communications is sufficient to perform tone detection but not sufficient to perform base station identity code (BSIC) verification of a second RAT. The halting of the performance of tone detection of the second RAT is made when the gap is not sufficient to perform BSIC verification. | 09-11-2014 |
20140254547 | UPLINK BUFFER STATUS REPORTING FOR MULTIPLE PRESERVED PDP CONTEXTS - A method of buffer status reporting for multiple preserved data protocol (PDP) contexts includes communicating with a base station. A service request is sent to the base station, the service request requesting a set of radio access bearers (RABs) for a set of PDP contexts. The set of preserved PDP contexts includes one or more PDP contexts that have no uplink data ready to transmit on a high speed shared data channel. The set of preserved PDP contexts also includes one or more PDP contexts that have uplink data ready to transmit on the high speed shared data channel. | 09-11-2014 |
20140269353 | INTER-RADIO ACCESS TECHNOLOGY (IRAT) MEASUREMENT SCHEDULING - A method of wireless communication includes determining whether a serving cell signal strength is below a first threshold. The method also includes determining whether an inter/intra frequency neighbor cell signal strength is below a second threshold. The method further includes determining whether a number of idle traffic time slots for inter-radio access technology IRAT measurements is less than a third threshold. Finally, a frequency of IRAT measurements in time slot zero (TS0), a downlink pilot time slot (DwPTS), an uplink pilot time slot (UpPTS), and a gap (GP) is increased. The increase is based on the determined serving cell signal strength, the determined inter/intra frequency neighbor cell signal strength, and the determined number of idle traffic time slots. | 09-18-2014 |
20140269354 | INTER-RADIO ACCESS TECHNOLOGY AND/OR INTER-FREQUENCY MEASUREMENT PERFORMANCE ENHANCEMENT - A method of wireless communication includes activating a receive chain for inter-frequency or inter radio access technology (IRAT) measurement during uplink communications. The method may further include measuring at least one neighbor cell with the activated receive chain during uplink communications. | 09-18-2014 |
20140269356 | REDUCING THE FREQUENCY OF MEASUREMENT OF A STATIONARY UE - A system and method reduce the frequency for performing measurements by a UE in a wireless network, such as a TD-SCDMA network. A UE compares at least one serving cell signal strength to a first threshold value. When the serving cell signal strength value is above the first threshold, the UE determines whether it is stationary. The UE determines whether it is stationary by evaluating change in serving cell signal strength and evaluating a timing difference value. The UE reduces the frequency for performing measurement(s) when changes in the serving cell signal strength values are below a second threshold value and the timing difference value is below a third threshold value. The timing difference can be a subframe number to subframe number (SFN-SFN) observed time difference. | 09-18-2014 |
20140269522 | ADAPTIVE CLOCK RATE FOR HIGH SPEED DATA COMMUNICATIONS - A method adaptively adjusts an internal clock rate and/or supply voltage based on an indication from a scheduling channel. A UE determines whether high speed data has been scheduled. The UE adjusts the clock speed and/or supply voltage based on the determination. | 09-18-2014 |
20140269629 | RETRANSMISSION TIMER IN A HIGH SPEED DATA NETWORK - A system and method include adjusting a retransmission timer in a high speed network. The hybrid automatic repeat request (HARQ) retransmission timer is adjusted to a minimum of: a network signaled value for the HARQ retransmission timer, a network signaled value for a radio link control (RLC) retransmission timer, and a user equipment (UE) measured time of when feedback is received from a network in response to a retransmission. | 09-18-2014 |
20140274046 | INTER-RADIO ACCESS TECHNOLOGY (IRAT) HANDOVER - A method of wireless communication determines whether the timing of a non-serving RAT is known. When the timing is known and it is time to report on the non-serving RAT, the UE clears enough consecutive time slots to verify the identity of the base station in the non-serving RAT. During the cleared time slots the identity of the base station is verified. When the timing is unknown and it is time to report on the non-serving RAT, a UE clears enough consecutive time slots to measure the timing of the non-serving RAT and to verify the identity of a base station in the non-serving RAT. During the cleared time slots, the timing is acquired and the identity of the base station is verified. | 09-18-2014 |
20140313953 | ADJUSTING MEASUREMENT REPORTS TO REDUCE POWER CONSUMPTION - A UE may improve power performance by adjusting measurement reports based on uplink power. The UE factors in the uplink transmit power into the downlink radio signal strength measurement results that are reported to a network. When the UE is transmitting higher than normal uplink power, the UE can adjust the measurement results and report an artificially lower measurement result to the network, to account for the uplink transmit power. The UE may trigger a handover based at least in part on the adjusted measurement report. | 10-23-2014 |
20140315555 | ADAPTIVE CELL RESELECTION - Idle power consumption of a user equipment (UE) is affected by an adaptive cell reselection process to prevent ping-pong cell reselection. The adaptive cell reselection includes adapting triggering threshold values for reselection based on signal strengths. The triggering threshold value may be increased for cell reselection while the UE receives a good signal from a serving cell. When the serving cell signal is poor, the cell reselection triggering threshold value is decreased to allow for fast cell reselection. | 10-23-2014 |
20140328225 | COEXISTENCE DETECTION OF WIFI NETWORKS USING IDLE INTERVALS IN A TDD SYSTEM - A process includes determining an unallocated communication frame of a first radio access technology (RAT) using a dedicated physical channel (DPCH) with a time division multiplexing scheme. Measurements are then performed to identify for a second RAT during a time allocated to the unallocated communication frame. | 11-06-2014 |
20140369312 | ADAPTIVE TRANSMIT POWER CONTROL (TPC) STEP SIZE IN A HIGH SPEED DATA NETWORK - A method of wireless communication includes returning to a base station after a handover failure. The method also includes receiving consecutive transmit power control (TPC) UP commands within a first predetermined time period. The method further includes receiving enhanced uplink dedicated channel uplink control channel (E-UCCH) instances within a second predetermined period. The method further includes increasing a TPC step size after receiving a first predetermined number of consecutive TPC UP commands during the first predetermined time period and after receiving a second predetermined number of E-UCCH instances during the second predetermined time period. | 12-18-2014 |
20140378140 | METHOD AND APPARATUS FOR INTER RADIO ACCESS TECHNOLOGY (IRAT) CELL RESELECTION - The present disclosure presents a method and an apparatus for inter radio access technology (IRAT) cell reselection. For example, the method may include identifying that a user equipment (UE) in an idle or a discontinuous reception (DRX) mode is camped on a cell of a first RAT, determining that the cell the UE is camped on is not broadcasting any neighbor cell of a second RAT, scanning for one or more frequencies of the second RAT based on the determination, and triggering a cell reselection to a cell of the second RAT, wherein the cell of the second RAT is associated with a frequency identified during the scanning. As such, an autonomous IRAT cell reselection may be achieved. | 12-25-2014 |
20150016349 | METHODS AND APPARATUS FOR ENHANCED UPLINK COMMUNICATION - Methods and apparatus for wireless communication at a user equipment (UE) include sending an uplink enhancement message to a network entity when an uplink enhancement condition has been detected. Further, the methods and apparatus include receiving communication from the network entity in response to sending the uplink enhancement message. Moreover, methods and apparatus for wireless communication at a network entity include detecting an uplink enhancement condition. Additionally, the methods and apparatus include transmitting a network entity originated uplink enhancement message to a UE in response to detecting the uplink enhancement condition. | 01-15-2015 |
20150049617 | FCCH BURST DETECTION ABORT METHOD FOR INTER-RADIO ACCESS TECHNOLOGY (IRAT) MEASUREMENT - A system acquisition is initiated to perform inter radio access technology (IRAT) measurement. A waiting period of time is provided before aborting the system acquisition. The period of time is adjustable based on at least one metric. The metric can be a frequency of available measurement gaps, a total number of available measurement gaps, and/or a length of each measurement gap within a subframe. The metric could also be an absolute signal strength of a single neighbor cell and/or a relative signal strength between neighbor cells. The metric could also be a user equipment (UE) measured signal strength compared to a network indicated threshold value for triggering an IRAT measurement report. The metric could also be a percentage of a tone that falls within a measurement gap. | 02-19-2015 |
20150049737 | MEASUREMENT REPORTING WHEN COMMUNICATING WITH WEAK SERVING CELL - A process includes transmitting a measurement report for inter/intra frequency handover when certain conditions are met. The first condition occurs when a serving cell signal strength of a serving cell in a first radio access technology (RAT) is below a first absolute threshold. The second condition occurs when a neighbor cell signal strength of a neighbor cell also in the first RAT is above the serving cell signal strength by a predetermined first amount. The third condition occurs when the neighbor cell signal strength is above a second absolute threshold. | 02-19-2015 |
20150055626 | METHODS AND SYSTEMS FOR INTER-RAT HANDOVER IN MULTI-MODE MOBIL STATION - Described herein are aspects related to communicating with a first radio access technology (RAT) and a second RAT, wherein a set of multi-input, multi-output (MIMO) resources is allocated for communication between a mobile station (MS) and a base station (BS) of the first RAT. A request message is sent to the BS of the first RAT requesting reallocation of at least a portion of the set of MIMO resources in a scan duration. During the scan duration, signals are received from a BS of the second RAT over a reallocated subset of the set of MIMO resources and communications occur with the BS of the first RAT over a non-reallocated subset of the set of MIMO resources. During a normal duration subsequent to the scan duration, communications occur with the BS of the first RAT using the set of MIMO resources including at least some of the reallocated subset of the set of MIMO resources. | 02-26-2015 |
20150063315 | SUB-CHANNEL SELECTION TO REDUCE LATENCY OF CIRCUIT-SWITCHED FALLBACK - It is determined whether a specific call type occurs. A random access preamble is transmitted at an earliest available sub-channel when the specific call type occurs. The random access preamble is transmitted at an assigned sub-channel when the specific call type does not occur. The call type can be a circuit switched fall back (CSFB) call or an emergency call. | 03-05-2015 |
20150065138 | FREQUENCY HANDOVER WITH INTER-FREQUENCY INTERFERENCE MEASUREMENT - A method of wireless communication includes measuring interference to a primary frequency of a neighbor cell and measuring interference to at least one secondary frequency of the neighbor cell. The method also includes transmitting at least one measurement report based on the interference measurements of the primary frequency and the secondary frequency(ies). | 03-05-2015 |
20150071257 | RADIO RESOURCE REQUEST FOR IRAT MEASUREMENT IN TD-HSUPA/TD-HSDPA - A user equipment (UE) may achieve fast inter radio access technology (IRAT) measurement and better IRAT handover performance to effectively avoid call drops via smooth IRAT handover to other RATs during Time Division High Speed Downlink/Uplink Packet Access (TD-HSDPA/TD-HSUPA) data transmission. In some instances, the UE may speed up the IRAT measurement by request a resource allocation grant preference from a base station. The request indicates a reduced number of time resources and an increased number of other resources. | 03-12-2015 |
20150071263 | CHANNEL QUALITY INDEX (CQI) REPORTING IN WIRELESS NETWORK - A method of wireless communication in a wireless network includes transmitting synchronization shift (SS) bits with a channel quality index (CQI) report. The method also includes indicating, via the synchronization shift bits, one or more preferred time slots for receiving a high speed data transmission. | 03-12-2015 |
20150078294 | SCHEDULING REQUEST IN WIRELESS COMMUNICATION SYSTEM - A method of wireless communication includes transmitting an abbreviated scheduling request indicating a general size of a first grant when a UE has buffered data. A detailed schedule request is transmitted and indicates a specific size of a second grant after receiving the first grant. The second grant is adjusted based on the detailed scheduling request. | 03-19-2015 |
20150078347 | STORAGE OF BASE STATION IDENTITY CODE (BSIC) TIMING - A method and apparatus for wireless communication stores synchronization channel (SCH) timing for each identified Global System for Mobile Communications (GSM) cell. The stored SCH timing is used to perform base station identity code (BSIC) reconfirmation for an identified GSM cell without frequency correction channel (FCCH) tone detection and initial BSIC confirmation. The stored SCH timing is maintained across a plurality of user equipment (UE) states. | 03-19-2015 |
20150079987 | TONE DETECTION SCHEDULING - A user equipment (UE) uses idle time slots for system acquisition for IRAT measurement. To speed up the IRAT measurement, the UE starts system acquisition for a for first Global System for Mobile Communications (GSM) cell. The UE suspends the system acquisition of the first GSM cell when the first GSM cell signal strength falls below a signal strength of another GSM cell in a neighbor list. The UE then stores information acquired during the system acquisition of the first GSM cell, prior to the suspension. The UE starts a system acquisition for a second GSM cell after the suspension. The UE then resumes the system acquisition of the first GSM cell using the stored information after the second cell is acquired or the acquisition process aborts. | 03-19-2015 |
20150085754 | METHODS AND APPARATUS FOR ENHANCED FREQUENCY MEASUREMENTS - Methods and apparatus for wireless communication comprise receiving a measurement configuration message indicating a Dedicated Channel (DCH) measurement occasion (DMO) gap for inter-radio access technology (IRAT) measurements of a first technology type during operation of the UE according to a second technology type. The methods and apparatus further comprise determining an adjusted DMO gap based on at least one DMO gap adjustment rule, wherein the adjusted DMO gap is shorter in duration than the DMO gap. Moreover, the methods and apparatus comprise performing a frequency measurement for the second technology type during the DMO gap in one or more open time slots made available by the adjusted DMO gap. | 03-26-2015 |
20150087295 | SERVING CELL AND NEIGHBOR CELL PATH LOSS RELATIVE LEVEL REPORTING - A method of wireless communication includes receiving, from an user equipment (UE), a report of relative neighbor cell path loss levels and corresponding neighbor cell indexes for intra-frequency neighbor cells. The method also includes receiving, from a radio network controller (RNC), uplink loading conditions for the intra-frequency neighbor cells. The method further includes allocating a power grant based on the relative neighbor cell path loss levels and the uplink loading conditions. | 03-26-2015 |