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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
20100098035 | METHODS AND APPARATUS FOR SERVICE PROVISIONING IN WIRELESS COMMUNICATION NETWORKS - An open service provisioning method may be implemented by a terminal. The method may include receiving a customer's selection of a first-time network access provider and network service provider (NAP/NSP). The method may also include establishing a connection with the first-time NAP/NSP. The method may also include receiving information about possible other NAPs/NSPs while connected to the first-time NAP/NSP. The method may also include receiving the customer's selection of a home NAP/NSP. The method may also include assisting the customer to sign up for service with the home NAP/NSP. The method may further include establishing a connection with the home NAP/NSP. | 04-22-2010 |
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 |
20100103903 | METHODS AND SYSTEMS FOR HANDOVER USING INCREASED PROBABLITY FOR FAST RANGING SUCCESS - Techniques presented herein disclose handover using increased probability of the fast ranging success. Propagation delay of the RF signal transmitted from an MS to a target BS may be estimated based on a known propagation delay to a current serving BS and a relative difference in propagation delays to the current serving BS and the target BS, for example, as indicated by different receive times of preamble sequences transmitted from the current serving BS and the target BS. | 04-29-2010 |
20100105378 | METHODS AND APPARATUS FOR FACILITATING DYNAMIC SERVICE-BASED SYSTEM SELECTION AND DETERMINATION - A method for facilitating dynamic service-based system selection and determination may be implemented by a communications device. The method may include presenting system selection options to a user based on information that is received about Network Access Providers (NAPs) and Network Service Providers (NSPs). The method may also include receiving user input about the system selection options. The user may be permitted to provide input about specific services offered by specific NSPs. The method may also include determining user preferences regarding system selection based on the user input. The method may also include creating a preferred roaming list (PRL) based on the user preferences. The method may further include using the PRL to scan for available networks and channels and to find serving systems. | 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 |
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 |
20100118772 | METHODS AND SYSTEMS FOR EXTENSIBLE EXTENDED INFORMATION ELEMENT MAPPING - Methods and apparatus for expressing two or more extended information elements (IEs) of a MAP message using a single Extended or Extended-2 Downlink Interval Usage Code (DIUC) or Uplink Interval Usage Code (UIUC) in an orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) frame are provided. This enhancement, called extensible Extended IE mapping, allows the WiMAX network to include more IEs into the DL-MAP and UL-MAP messages as the IEEE 802.16 family of standards evolves. Without this enhancement, all of the new IEs may most likely have to be included in the data bursts, and a user terminal (e.g., a mobile station) cannot decode these data-burst IEs unless the user terminal receives the Downlink Channel Descriptor (DCD) message(s). | 05-13-2010 |
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 |
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 |
20100178900 | METHODS AND SYSTEMS FOR DYNAMIC SERVICE FLOW USING AVAILABLE BATTERY POWER - Certain embodiments of the present disclosure relate to methods for improving a service flow of a mobile device based upon a different level of its available battery power. If the battery power availability is below a predefined threshold, then one or more power-saving techniques can be triggered that increase an air time of the mobile device and provide savings of power consumption at different rates using a different level of clock rate. | 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 |
20100189070 | METHODS AND SYSTEMS FOR COMBINING SERVICE FLOW ADDITION/CHANGE WITH HANDOVER IN WIMAX SYSTEMS - The present disclosure proposes a method for incorporating a procedure of adding/changing a service flow of a mobile station into a handover process in order to avoid problem that the mobile station can handover to a neighbor base station that do not support the requested service flow operation. Furthermore, the proposed disclosure can reduce the processing delay by combining the handover process of the mobile station and the procedure of adding/changing the service flow. | 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 |
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 |
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 |
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 |
20100278151 | METHODS AND SYSTEMS USING EFFICIENT RANGING MESSAGE TRANSMISSION DURING INITIAL RANGING - Techniques for efficient transmission of messages in a ranging procedure between a mobile station (MS) and a base station (BS) are provided. The techniques may allow efficient bandwidth allocation for the ranging procedure. | 11-04-2010 |
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 |
20110164589 | CONTROLLING TRANSMISSION CONTROL PROTOCOL (TCP) TRANSMISSIONS IN HANDOVER - Methods and apparatuses are provided that pausing transmission control protocol (TCP) transmissions during or following handover to prevent unwarranted duplicated acknowledgement transmission, which can cause decrease in TCP window size. During handover, transmission on-hold commands can be sent to a TCP layer that indicate to prepare to pause TCP transmissions, immediately pause TCP transmissions, and/or the like. Transmission resume commands can be sent to the TCP layer following handover. In addition, TCP transmissions can be paused following handover to allow data forwarding data to be provisioned to a device from a target base station without duplicated acknowledgement transmission. | 07-07-2011 |
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 |
20120044805 | SYSTEMS AND METHODS FOR TRAFFIC POLICING - Systems and methods for policing traffic in communications systems are described herein. According to systems and methods herein, tokens are generated for a packet data network based on a peak transmission rate associated with the packet data network. Packets are selected for transmission over the packet data network based on availability of tokens. | 02-23-2012 |
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 |
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 |
20120120880 | SCHEDULING OF LOGICAL CHANNELS IN A WIRELESS COMMUNICATION SYSTEM - Techniques for scheduling logical channels for data transmission are described. In one design, a user equipment (UE) is configured with a plurality of logical channels for sending data on the uplink. Each logical channel is associated with a priority and a data buffer size. The UE maintains a token bucket for each logical channel. In each scheduling interval or when an uplink grant is received, the UE determines a bucket level (which may be a positive value or a non-positive value) for each of the plurality of logical channels. The UE ascertains logical channels with bucket levels of the same polarity and then identifies logical channels of the same priority among all logical channels with the same bucket level polarity. The UE selects at least one identified logical channel for scheduling based on the data buffer size and/or the bucket level for each identified logical channel. | 05-17-2012 |
20120140731 | DETERMINING A NON-ACCESS STRATUM MESSAGE COUNT IN HANDOVER - Techniques for deriving message counts based at least in part on a locally stored message count and at least a portion of a message count received from a remote network node are disclosed. The message counts can relate to downlink (DL) non-access stratum (NAS) counts. In one aspect, a device can receive a number of least significant bits of the DL NAS count in a handover message. The device can derive a DL NAS count by utilizing a remaining portion of most significant bits of a locally stored DL NAS count, and can determine whether to increment or decrement the most significant bits based at least in part on a parameter to handle cases where the least significant bits of the locally stored DL NAS count have wrapped due to overflow and/or underflow. | 06-07-2012 |
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 |
20120236776 | TARGET CELL SELECTION FOR MULTIMEDIA BROADCAST MULTICAST SERVICE CONTINUITY - Transfer of Multimedia Broadcast/Multicast Services (MBMS) over a Single Frequency Network (MBSFN) service and idle mode unicast service for a mobile entity from a source base station to a target base station may be managed by a base station or mobile entity of a cellular wireless communications system (WCS). Operations related to the transfer may include obtaining an MBMS status of the mobile entity, and/or obtaining MBMS support information for the base station. A network entity may facilitate MBMS discovery by a mobile entity, by transmitting a data element to the mobile entity including service identifiers mapped to corresponding cell identifiers to indicate respective MBMS services to be broadcast in an WCS area on adjacent cells identified by respective ones of the cell identifiers. The MBMS services may be broadcast within the WCS area using the adjacent cells previously indicated in the data element. | 09-20-2012 |
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 |
20120275399 | SYSTEM AND METHOD FOR SYNCHRONIZED RADIO LINK CONTROL AND MEDIA ACCESS CONTROL IN A WIRELESS COMMUNICATION NETWORK - Techniques are provided for synchronized radio link control (RLC) and/or media access control (MAC). For example, there is provided a method that involves generating an RLC protocol data unit (PDU) according to a segmentation protocol for maximizing RLC PDU size while allowing the RLC PDU to fit into a defined MAC transport block, the RLC PDU comprising at least one RLC service data unit (SDU) or RLC SDU segment. The method may involve determining a PDU data size for each given RLC SDU. The method may further involve (a) attaching a given RLC SDU to the RLC PDU and (b) delivering the RLC PDU to a lower layer, in response to a SDU data size for the given RLC SDU exceeding a defined size limit. | 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 |
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 |
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 |
20130072189 | MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) BASED CONCURRENT SCAN OF NEIGHBOR CELLS - Methods, systems, and devices are described for concurrently performing handoff-related measurements for neighbor cells using multiple input multiple output (MIMO) antenna resources. In one example, a mobile device is in communication with a serving cell. Handoff-related measurements of first wireless signals from a first neighbor cell are performed. The first wireless signals are received at first MIMO antenna resources of a device. Handoff-related measurements of second wireless signals from a second neighbor cell are performed, as well. The second wireless signals are received at second MIMO antenna resources concurrently with the first wireless signals received at the first MIMO antenna resources. The first handoff-related measurements and the second handoff-related measurements may be performed during a scan interval. A type of handoff-related measurement to perform may be determined based on a determined length of the scan interval. | 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 |
20130095840 | ENHANCEMENT OF DEDICATED RANGING IN RESPONSE TO PAGE MESSAGES FOR A MOBILE STATION - Certain embodiments of the present disclosure present methods and apparatuses for enhancing the dedicated ranging procedure. Certain embodiments improve probability of correct reception of a ranging code from a mobile station by accumulating two or more copies of the ranging code received from the MS on two or more different frames in a transmit opportunity. Certain aspects improve probability of correct reception of the ranging code by modifying timing of uplink transmission. | 04-18-2013 |
20130097287 | CONTROLLING STREAMING DELAY IN NETWORKS - Techniques are provided for reducing delay during streaming transmissions. For example, a method may include receiving a stream of data segments. The method may include establishing a first group of segments based on the data segments, and generating a first table of information. The method may include transmitting the first table and the first group of segments, and establishing a second group of segments based on the data segments, the second group of segments including a partial overlap of data segments included in the first group of segments. The method may include generating a second table of information, and transmitting the second table and a collection of segments that includes data segments from the second group that were not part of the first group. | 04-18-2013 |
20130107721 | DISCOVERING AN EVOLVED MULTICAST BROADCAST MULTIMEDIA SERVICE IN SINGLE OR DUAL BAND LTE | 05-02-2013 |
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 |
20130114492 | METHOD AND APPARATUS FOR MITIGATING CONTROL CHANNEL ERROR - Methods and apparatuses are provided that include decoding multicast broadcast communications where scheduling information related to a multicast channel is not properly received over a control channel. Media access control (MAC) packets can be decoded to determine whether a MAC subheader indicates the packet relates to a logical channel by indicating an associated channel identifier. Where the channel identifier of the MAC packet matches that of a requested logical channel, data in the MAC packet can be provided to a communications layer. Subsequent packets can be processed and provided to the communications layer until a different channel identifier is encountered. | 05-09-2013 |
20130128756 | METHOD AND APPARATUS FOR PHYSICAL LAYER MEASUREMENTS IN MULTICAST BROADCAST MULTIMEDIA SERVICE SYSTEMS - A method, an apparatus, and a computer program product for wireless communication are provided. An apparatus, e.g., user equipment (UE), receives a reporting requirement for one or more Multicast-Broadcast Single Frequency Network (MBSFN) physical layer parameters. The UE obtains the one or more MBSFN physical layer parameters including at least one parameter corresponding to a reference signal, and creates a report based on the obtained one or more MBSFN physical layer parameters. The UE may obtain the one or more MBSFN physical layer parameters using user-plane or control-plane based mechanisms. The user-plane mechanism involves the use of a modified version of the reporting mechanism for Quality of Experience (QoE) metrics. The control-plane mechanism involves the use of a modified version of the reporting mechanism for the Minimization of Drive Tests (MDT) metrics. | 05-23-2013 |
20130128768 | METHOD AND APPARATUS FOR ENHANCING CONTROL CHANNEL TRANSMISSION - Methods and apparatuses are provided that include enhancing decoding of multicast broadcast control communications, which can be of a relatively large size. A configuration message related to a broadcast channel structure can be received in multiple instances and/or segmented data units. A receiver can combine multiple instances and/or accumulate segmented data units to obtain and/or decode a control channel over which the configuration message is communicated. Communicating segmented data units of the configuration message can allow a broadcast station to utilize a lower data rate, more reliable modulation and coding scheme to encode the configuration message. | 05-23-2013 |
20130142053 | METHOD AND AN APPARATUS TO OPTIMIZE MONITORING FOR A NEW EMBMS SESSION IN LTE NETWORKS - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus is configured to monitor for a notification of MCCH information change associated with an MBSFN area without having previously performed an MCCH information acquisition procedure to acquire MCCH information in the MBSFN area. Furthermore, the apparatus is configured to acquire the MCCH information while monitoring for the notification of the MCCH information change that indicates a change of MCCH information. | 06-06-2013 |
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 |
20130142114 | Enhancement of Replay Protection in Wireless Communication Systems - Certain aspects of the present disclosure generally relate to methods and apparatus for enhancement of replay protection between receivers and transmitters from third party interveners in wireless communication systems. One example method generally includes transmitting one or more packets, wherein each of the packets comprises an indication of a packet number associated with that packet; determining that a condition has been met or exceeded; and based on the determination, transmitting a message indicating a packet number increase. Another example method generally includes receiving a first packet comprising an indication of a first packet number; receiving a message indicating a packet number increase; updating a packet number window based on the packet number increase; after the updating, receiving a second packet comprising an indication of a second packet number; and discarding at least a portion of the second packet if the second packet number is outside the packet number window. | 06-06-2013 |
20130155881 | PRIORITIZING INTER-FREQUENCY/INTER-RAT MEASUREMENTS AND EMBMS IN LTE - A method, an apparatus, and a computer program product for wireless communication are provided for prioritizing the performance of measurements during measurement gaps and the reception of multicast/broadcast content. The apparatus receives a configuration from a serving cell to perform a measurement during a measurement gap of a unicast service while in a connected mode. In addition, the apparatus determines whether to refrain from leaving the serving cell on a first frequency and performing the measurement on a second frequency of a neighboring cell in order to receive multicast/broadcast content associated with a multicast/broadcast service during the measurement gap. | 06-20-2013 |
20130183973 | CELL RESELECTION BASED ON MULTIMEDIA BROADCAST MULTICAST SERVICE (MBMS) METRICS - A method for cell reselection by a wireless communication device is described. The method includes camping on a serving cell in idle mode. A neighbor cell is detected. A serving cell rank is computed for the serving cell. A neighbor cell rank is computed for the neighbor cell based on multimedia broadcast multicast service metrics. Cell reselection is determined based on the serving cell rank and the neighbor cell rank. | 07-18-2013 |
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 |
20130242716 | METHOD AND APPARATUS FOR HANDLING RADIO LINK FAILURE IN LTE EMBMS - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The UE may detect a multicast/broadcast radio link failure based on at least one of decoding errors, lost or error packets/segments, or failure to receive a multicast/broadcast channel for a time period greater than a threshold, and recover from the detected multicast/broadcast radio link failure upon detecting the multicast/broadcast radio link failure. | 09-19-2013 |
20130254611 | RECOVERING DATA IN MULTIMEDIA FILE SEGMENTS - This application relates to systems and methods for recovering data in multimedia file segments. A communication device may receive a multimedia file segment that includes damaged data. The communication device may replace the damaged data with dummy data to reconstruct the multimedia file segment. The communication device may then play the reconstructed multimedia file segment. Thus, by replacing the damaged data with dummy data, the communication device may play a multimedia file segment even when part of the segment may be damaged. | 09-26-2013 |
20130258934 | EMBMS SERVICE ACTIVATION AND MAINTENANCE PROCEDURE IN MULTI-FREQUENCY NETWORKS - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a user service description (USD) message. When a frequency indicated in the USD message is not a current frequency, the apparatus determines that a system information message is received, determines that the frequency indicated in the USD message is included in the system information message, determines that the frequency is a neighboring cell frequency, sets a priority of the frequency to a highest priority, and measures a signal strength of the frequency when the frequency is included in the system information message, performs a cell reselection determination procedure based on the signal strength of the frequency, performs cell reselection to the neighboring cell based on a result of the cell reselection determination procedure, and acquires the multicast service in the neighboring cell on the frequency. | 10-03-2013 |
20130262567 | RESPONDING TO HYPERTEXT TRANSFER PROTOCOL (HTTP) REQUESTS - Embodiments enable HTTP servers to pass incomplete and/or corrupted files in response to file requests from clients. In the various embodiments, HTTP servers may be enabled to generate status codes identifying that an incomplete version of a file is being returned in response to a file request. In an embodiment, an HTTP server may be enabled to determine the ability of a client to handle incomplete versions of files. | 10-03-2013 |
20130272123 | Systems and Methods for Traffic Policing - Systems and methods for policing traffic in communications systems are described herein. According to systems and methods herein, tokens are generated for a packet data network based on a peak transmission rate associated with the packet data network. Packets are selected for transmission over the packet data network based on availability of tokens. | 10-17-2013 |
20130272185 | METHOD AND APPARATUS FOR ENHANCING CONTROL CHANNEL TRANSMISSION - Methods and apparatuses are provided that include enhancing decoding of multicast broadcast control communications, which can be of a relatively large size. A configuration message related to a broadcast channel structure can be received in multiple instances and/or segmented data units. A receiver can combine multiple instances and/or accumulate segmented data units to obtain and/or decode a control channel over which the configuration message is communicated. Communicating segmented data units of the configuration message can allow a broadcast station to utilize a lower data rate, more reliable modulation and coding scheme to encode the configuration message. | 10-17-2013 |
20130294316 | ACHIEVING FAST EMBMS CHANNEL SWITCHING AND ADDING IN LTE - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a first MTCH. The apparatus stores MBMS control information for at least a second MTCH. The apparatus subsequently determines to receive the second MTCH. The apparatus then accesses the stored MBMS control information for the second MTCH upon determining to receive the second MTCH. The apparatus receives the second MTCH based on the accessed MBMS control information without acquiring the MBMS control information for the second MTCH after the determination to receive the second MTCH. | 11-07-2013 |
20130294318 | EFFICIENT UPDATE OF TMGI LIST IN LTE EMBMS - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives at least one MBMS service in at least one MBSFN area. The apparatus receives configuration information on at least one MCCH. The at least one MCCH includes an MCCH unassociated with the at least one MBSFN area. The MCCH unassociated with the at least one MBSFN area is an MCCH associated with an MBSFN area not currently being received by the apparatus. The apparatus constructs a list of TMGIs based on the configuration information. The apparatus updates the list of TMGIs based on at least one of an MCCH change notification message for each of the at least one MCCH or a user service description. | 11-07-2013 |
20130294321 | SMOOTH TRANSITION BETWEEN MULTIMEDIA BROADCAST MULTICAST SERVICE (MBMS) AND UNICAST SERVICE BY DEMAND - Techniques are provided for smooth transition between broadcast/multicast transmission and unicast transmission. A method for managing unicast and multicast services switching in a multi-band/multi-frequency wireless communications system (WCS) capable of both unicast and multicast signaling includes determining whether an aggregate demand for a content provided via dedicated unicast transmissions exceeds a threshold. The method includes switching transmission of the content from the dedicated unicast transmissions on one frequency to a multicast transmission on a second or more frequencies in response to determining that the aggregate demand exceeds the threshold. | 11-07-2013 |
20140003257 | POWER AWARENESS MEASUREMENT IN TIME DIVISION SYNCHRONOUS CODE DIVISION MULTIPLE ACCESS | 01-02-2014 |
20140003311 | USER PRESENCE DRIVEN POWER SAVING IN TIME DIVISION SYNCHRONOUS CODE DIVISION MULTIPLE ACCESS | 01-02-2014 |
20140003390 | NETWORK DRIVEN CELL RESELECTION METHOD FOR UES PLAYING EMBMS CONTENT IN UNICAST IDLE MODE | 01-02-2014 |
20140003417 | SUPPORTING COORDINATED UNIVERSAL TIME IN LTE | 01-02-2014 |
20140016491 | METHODS AND APPARATUS FOR REPORTING SIGNAL QUALITY IN OVERLAPPING MULTIMEDIA BROADCAST SINGLE FREQUENCY NETWORK (MBSFN) AREAS - Certain aspects of the present disclosure relate to methods and apparatus for reporting signal quality in overlapping Multimedia Broadcast Single Frequency Networks (MBSFN) areas. A UE may determine a signal quality estimate for each of two or more overlapping MBSFN areas based on Signal to Noise Ratio (SNR) information and Modulation and Coding Scheme (MCS) information for the MBSFN area. The UE may then determine a combined signal quality based on the signal quality estimates of the MBSFN areas. | 01-16-2014 |
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 |
20140036755 | MBMS SUPPORT IN HETEROGENEOUS NETWORK AND IN-VENUE - A method, an apparatus, and a computer program product for wireless communication enable user equipment operating in a current cell that provides a multimedia broadcast/multicast service to distinguish between neighboring cells that have different operational characteristics. The presence of a neighboring cell is identified while the user equipment is operating in a first cell and it is determined whether the neighboring cell provides services different from the services provided in the current cell, based on information maintained by the user equipment. The user equipment may move to the neighboring cell to obtain better or different service. | 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 |
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 |
20140080475 | DETERMINATION OF AVAILABLE SERVICES IN A BROADCAST NETWORK - The various embodiments enable a mobile device to determine the available services in a broadcast network based on an augmented coverage configuration file. In the various embodiments, the augmented coverage configuration file correlates the services for overlapping cells on different frequency carriers enabling the mobile device to determine the available services without having to scan additional frequency carriers. | 03-20-2014 |
20140098745 | METHOD AND SYSTEM FOR COMPRESSING DATA PACKETS IN LTE EVOLVED MULTICAST BROADCAST MULTIMEDIA SERVICE - Compression of broadcast data packets is described in which a compressed broadcast data packet is formed by causing at least one field in a packet header to be excluded from the transmitted data packet. The data from the compressed or removed field is data that is otherwise available to a user entity. The user entity receives the compressed broadcast data packet and determines information corresponding to at least one of the eliminated fields in order to process the received broadcast information. | 04-10-2014 |
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 |
20140119263 | PRIMARY CELL SIGNALING FOR EMBMS IN CARRIER AGGREGATION - A method, an apparatus, and a computer program product for wireless communication are provided. In a first configuration, the apparatus is an eNB. The eNB configures a UE with aggregated carriers including a primary carrier from a primary cell and one or more secondary carriers from one or more secondary cells. In addition, the eNB sends, with the configuration, SIB13 information for at least one secondary cell of the one or more secondary cells from the primary cell. In a second configuration, the apparatus is a UE. The UE receives a configuration with aggregated carriers including a primary carrier from a primary cell and one or more secondary carriers from one or more secondary cells. In addition, the UE receives, with the configuration, SIB13 information for at least one secondary cell of the one or more secondary cells from the primary cell. | 05-01-2014 |
20140119264 | PRIMARY CELL SIGNALING FOR EMBMS IN CARRIER AGGREGATION - A method, an apparatus, and a computer program product for wireless communication are provided. In a first configuration, the apparatus is an eNB. The eNB constructs an MCCH change notification, and sends the MCCH change notification with a carrier frequency index for a first frequency of a first cell on a second frequency of a second cell. In a second configuration, the apparatus is a UE. The UE receives a configuration with aggregated carriers including a primary carrier from a primary cell and one or more secondary carriers from one or more corresponding secondary cells, and receives an MCCH change notification with a carrier frequency index for a first frequency of a first cell on a second frequency of a second cell. The first cell and the second cell are each one of the primary cell and the secondary cells. | 05-01-2014 |
20140119265 | MULTIBAND EMBMS ENHANCEMENT USING CARRIER AGGREGATION - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The UE receives at least one of a unicast or a broadcast/multicast communication on a first frequency from a first cell of a serving eNB through a first receive chain. In addition, the UE receives at least one of broadcast/multicast signal, synchronization signal, or reference signal communication on a second frequency from a second cell of the serving eNB through a second receive chain without having received instruction from the serving eNB to receive the at least one of the broadcast/multicast signal, the synchronization signal, or the reference signal communication. | 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 |
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 |
20140185455 | EXTENDING EMBMS SESSION IN LTE EMBMS - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives an MBMS service from a first cell in a first MBSFN area while in an RRC idle mode. The apparatus reselects to a second cell through an intra-frequency cell reselection upon moving into coverage of the second cell. The second cell is a non-MBSFN cell or an MBSFN cell in a second MBSFN area different than the first MBSFN area. The apparatus continues to receive the MBMS service directly from the first cell while receiving paging signals from the second cell. | 07-03-2014 |
20140192693 | SYSTEMS AND METHODS TO OPTIMIZE POWER CONSUMPTION FOR LTE eMBMS - Aspects of the present disclosure are directed to a methods and systems operable by a network entity for wireless communication, that includes determining that User Equipment (UE) is in idle mode and receiving eMBMS (evolved Multimedia Broadcast and Multicast Service); and based on the determining, activating a power optimization procedure in order to reduce power consumption of the UE. Examples of a power optimization procedures include a single or multi-level hardware shut down procedure, lowering the clock rate of hardware, and shutting down a communication bus during periods of non-use. | 07-10-2014 |
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 |
20140241180 | EVOLVED MULTIMEDIA BROADCAST MULTICAST SERVICE (eMBMS) INTER-FREQUENCY CELL RESELECTION - A method for inter-frequency cell reselection by a wireless communication device is described. The wireless communication device camps on a serving cell. An evolved multimedia broadcast multicast service (eMBMS) service provided by a neighbor cell is discovered. Inter-frequency parameters of the neighbor cell are measured. It is determined whether to perform an inter-frequency cell reselection based on one or more inter-frequency cell reselection factors. An inter-frequency cell reselection to the neighbor cell is performed. | 08-28-2014 |
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 |
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 |
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 |
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 |
20140355507 | ADJUSTING PRIORITY OF MBMS AND FEMTO CELLS - A UE may camp on a femto cell in an idle mode and determine whether the UE has an interest in receiving an MBMS service from an MBMS cell. When the UE has the interest in receiving the MBMS service, the UE adjusts a priority of the MBMS cell on which the MBMS service is provided or a priority of the femto cell such that the priority of the MBMS cell is higher than the priority of the femto cell. Otherwise, the UE refrains from adjusting the priority of the MBMS cell or the priority of the femto cell. | 12-04-2014 |
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 |
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 |
20150063193 | METHOD OF ENHANCING USER EXPERIENCE BY USING SYSTEM INFORMATION IN LTE EMBMS - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a request to receive a Multimedia Broadcast Multicast Service (MBMS) service associated with a service area identity (SAI) and a second frequency. The apparatus performs inter-frequency cell reselection from a first cell transmitting at a first frequency to a second cell transmitting at the second frequency, the second cell being an inter-frequency neighbor cell to the first cell. The apparatus receives system information from the second cell. The apparatus determines that the second cell transmitting at the second frequency is unassociated with the SAI based on the received system information. The apparatus blacklists the SAI on the second frequency in a blacklist for at least a period of time upon determining that the second cell is unassociated with the SAI. | 03-05-2015 |