Patent application number | Description | Published |
20090003293 | Accounting for map parsing delay to enable coexistence of multiple radios - In general, in one aspect, the disclosure describes an apparatus that includes a first radio to communicate with a first wireless network and a second radio to communicate with a second wireless network. The first wireless network transmits a map defining locations within an assigned spectrum data is to be communicated therebetween. An earliest possible location defined in map is such that the map can be parsed within the time it would take to get to the earliest possible location so that the radio can be turned off after receiving the map until the location defined in the map, and the second radio is active when the first radio is not. | 01-01-2009 |
20090040970 | MULTI-USER RESOURCE ALLOCATION AND MEDIUM ACCESS CONTROL (MAC) OVERHEAD REDUCTION FOR MOBILE WORLDWIDE INTEROPERABILITY FOR MICROWAVE ACCESS (WiMAX) SYSTEMS - Various embodiments are directed to multi-user resource allocation capable of significantly reducing MAC header overhead and scheduling delay for small payload applications, such as Voice over Internet Protocol (VoIP) and interactive gaming and to increase the capacity of such applications. In various implementations, multi-user resource allocation may be used in mobile Worldwide Interoperability for Microwave Access (WiMAX) systems designed to operate in accordance with the Institute for Electronic and Electrical Engineers (IEEE) standards such as the 802.16e-2005 standard and/or the evolving IEEE 802.16m standard as well as Third Generation Partnership Project (3GPP), 3GPP Long Term Evolution (LTE), and/or 3GPP2 Ultra Mobile Broadband (UMB) standards. | 02-12-2009 |
20090088177 | COLLOCATED RADIO COEXISTENCE METHOD - A collocated radio coexistence method is disclosed. The method operates in the frequency domain to protect WiMAX downlink traffic from narrow band interference (e.g. harmonics) caused by other collocated radios, such as GSM 800 MHz, operating simultaneously with an 802.16-capable (WiMAX) radio in a multiple radio coexistence platform (MRP). | 04-02-2009 |
20090274105 | OFDMA contention-based random access channel design for mobile wireless systems - Short spreading is used within a random access channel in an OFDM based network to spread data for transmission through the channel. The resource allocation of the random access channel is divided into a number of resource blocks in frequency, time, or both frequency and time. Each resource block has a dimension that is only a portion of the overall size of the resource allocation. During contention, a randomly selected short spreading code may be used to provide data spreading within a randomly selected resource block. | 11-05-2009 |
20090323602 | Efficient bandwith request for broadband wireless networks - Methods and apparatuses for scheduling transmissions between a base station and multiple user stations in a broadband wireless access network may include a subscriber station generating a bandwidth request which includes one of a limited number of available and predefined preamble sequences and a data portion identifying the resources requested. The subscriber station randomly selects a contention slot in a wireless channel, allocated by the base station, for sending a bandwidth request. The receiving base station is able to detect the preamble sequence of bandwidth requests and differentiate between subscribers even when bandwidth requests of two or more subscribers may collide by virtue of selecting the same contention slot. In this manner, latency and overhead of bandwidth requests may be improved. Additional variants and embodiments are also disclosed. | 12-31-2009 |
20090323770 | Techniques using a hop-by-hop approach for automatic repeat request (ARQ) in wireless relay networks - An embodiment of the present invention provides an apparatus, comprising a transceiver adapted for use in a hop by hop (HbH) relay network and configured to enable fast error correction and reduce ARQ overhead by coupling HARQ and ARQ feedback signaling in each hop of the HbH relay network. | 12-31-2009 |
20100005354 | Detection and recovery of HARQ NAK-TO-ACK feedback error in wireless communications systems - In wireless communication networks that use ARQ/HARQ feedback protocols, when a first device receives an apparent HARQ ACK from a second device, the first device may make a new transmission using a HARQ Channel ID whose previous usage was under conditions indicating a likelihood of error in the ACK. When the second device receives the new transmission, the reuse of that HARQ Channel ID in a new transmission rather than a retransmission lets the second device know that its previous NAK transmission was incorrectly received as an ACK. | 01-07-2010 |
20100008325 | OVERLAY HANDOVER IN A BROADBAND WIRELESS NETWORK - Overlay handover is generally presented. In this regard, a method is introduced including storing a broadband wireless network composite signal in a sample buffer, processing the sample buffer using subcarriers associated with a serving base station to determine a bandwidth grant from a first MAP, and reprocessing the sample buffer using subcarriers associated with a neighboring co-channel base station to determine a bandwidth grant from a second MAP. Other embodiments are also described and claimed. | 01-14-2010 |
20100111047 | Techniques to support multiple radio-access technologies - Techniques to permit scheduling of mixed radio access technologies. In some cases, a first radio access technology mode of a base station is scheduled during a first time region and a second radio access technology mode of a base station is scheduled during a sleep mode of the first radio access technology mode. In some cases, a first radio access technology mode of a base station is scheduled during a first time region and a second radio access technology mode of a base station is scheduled during an unused portion of the first time region. In some cases, a femto-base station is scheduled to snoop for local mobile stations during a sleep mode. Inactive regions of mobile stations are scheduled during a portion of sleep modes of the radio access technology modes. | 05-06-2010 |
20100157906 | Techniques for femto cell synchronization in wireless networks - Techniques are disclosed that provide for femto base stations to become synchronized with other base stations in a wireless network. For instance, a macro base station may instruct a mobile station to engage in a synchronization operation that synchronizes one or more timings (e.g., OFDM timings) of a femto base station with one or more corresponding timings of the macro base station. This may involve the mobile station having timing references of the macro base station. Further, this may involve the mobile station performing scanning operations and/or handover ranging operations with the femto base station. The mobile device may determine timing offsets between the femto BS and the macro BS. These offsets may be sent to the macro base station or to the femto base station. Also, the femto base station may adopt timings employed by the mobile station. The macro base station or a femto base station may direct a femto base station to achieve synchronization either directly with timing adjustment offset, or with a list of already synchronized femto base station as synchronization reference. | 06-24-2010 |
20100172291 | Dual Base Stations for Wireless Communications Systems - A network apparatus comprises a controller to determine a first base station for transmitting data and to determine a second different base station for receiving data. In one embodiment, the network apparatus further comprises a transceiver to transmit data to the first base station while associated with the second base station. The transceiver is operable to receive data from the second base station while associated with the first base station. | 07-08-2010 |
20100173631 | Method of managing network traffic within a wireless network - A method of managing network traffic within a wireless network ( | 07-08-2010 |
20100208831 | TECHNIQUES FOR QUICK ACCESS CHANNEL INFORMATION LOADING IN WIRELESS NETWORKS - An embodiment of the present invention provides a method of quick access channel information loading in wireless networks, comprising mapping at least one quick access channel to one distributed resource unit of control tiles, said control tiles being spread across consecutive sub-carriers and consecutive OFDMA symbols, wherein each control tile and a predetermined number of sub carriers are used to send a bandwidth indicator and a predetermined number of sub carriers are used to send a bandwidth request message, and wherein there exist unique orthogonal sequences for the bandwidth indicator and each of the sequences are capable of being selected as a preamble sequence. | 08-19-2010 |
20100226311 | EFFICIENT PAGING OPERATION FOR FEMTOCELL DEPLOYMENT - Efficient paging operation for femtocell deployment is generally presented. In this regard, a paging controller is introduced including a wired backbone interface to communicate with a plurality of macro base stations and a plurality of femto base stations, and control logic, the control logic to generate a page for a mobile station, and the control logic to transmit the page over the wired backbone interface to a select subset of all base stations, wherein the select subset of all base stations includes base stations that the mobile station is authorized to access. Other embodiments are also described and claimed. | 09-09-2010 |
20100227618 | ZONE SWITCHING IN MIXED-ZONE AIR INTERFACE - Embodiments of a system and method for wireless communication are provided. In certain embodiments, a base station provides a first zone using a first version of the communication standard and a second zone using a second version of the communication standard. In certain embodiments, the base station determines whether a mobile station communicating with the base station in the first zone can support the second version of the communication standard used in the second zone. When the mobile station can support the second version of the communication standard, the base station can send a command to switch the mobile station to the second zone. | 09-09-2010 |
20100275085 | METHOD AND APPARATUS FOR MAC MESSAGE RELIABILITY - Embodiments of a system and method for wireless communication are provided. In certain embodiments, a plurality of fragments of a MAC management message is transmitted. Each fragment includes a sequence number indicating an order of the fragments, and at least one of the fragments includes a transaction ID identifying the MAC management message with respect to other messages. | 10-28-2010 |
20100279717 | SHORT USER MESSAGES IN SYSTEM CONTROL SIGNALING - Short user messages can be conveyed in system management signaling for a data or telephony network. In one example, a first control message is sent from a first radio to a second radio, the control message including a data field, the data field containing a short message directed from a user of the first radio to a user of a third radio. In response, a second control message is received in reply to the first control message from the second radio, the second control message including a data field, the data field containing a response to the short message. | 11-04-2010 |
20100331000 | MACRO-TO-FEMTO CELL RESELECTION - The present invention discloses a method including: storing identification information or location information for a handover previously performed by a mobile system; estimating when the mobile system enters within a coverage area of a target femtocell; recognizing the coverage area based on the identification information or the location information; and scanning for the target-femtocell prior to handover. | 12-30-2010 |
20110003591 | LOW DUTY MODE FOR FEMTOCELL BASE STATIONS - A low duty mode is provided for a femtocell base station operating as part of a cellular communications system. Methods and systems are described for reducing the service impact of the low-duty mode on mobile stations that are either already attached or are attempting to attach to a femtocell base station. | 01-06-2011 |
20110004760 | METHOD AND APPARATUS OF DERIVING SECURITY KEY(S) - A method, apparatus and a wireless communication system to derive security key(s) over an air link in a secure manner by sending by a mobile station over the air a single direction permutation of a mobile station ID, establishing keys with the base station and sending the mobile station real ID in a secure manner. | 01-06-2011 |
20110044213 | SYSTEM, METHOD AND APPARATUS FOR AN EFFICIENT INFORMATION BROADCAST IN A MULTI-CARRIER WIRELESS NETWORK - Embodiments of an apparatus, system and method are described for a base station. Notification from a mobile station in a network may be received. A multi-carrier advertisement with a base station multi-carrier configuration may be sent. The base station multi-carrier configuration may include at least one carrier index associated with a carrier frequency operated on by the base station. Other embodiments are described and claimed. | 02-24-2011 |
20110058531 | SINGLE RADIO WIMAX INTERWORKING - In some embodiments a method comprises establishing a layer 2 tunnel between a mobile station coupled to a E-UTRAN and a WiMAX base station, implementing a first signaling interface through the layer 2 tunnel between a mobility management entity (MME) and the WiMAX base station, and preregistering the mobile station with the WiMAX access service network gateway at least in part via the layer 2 tunnel. Other embodiments may be described. | 03-10-2011 |
20110070867 | MANAGEMENT OF IDS FOR CLOSED SUBSCRIBER GROUP (CSG) BASE STATIONS - Embodiments of systems and methods for initiating network entry are generally described herein. Other embodiments may be described and claimed. | 03-24-2011 |
20110075623 | UPLINK CONTENTION BASED ACCESS WITH QUICK ACCESS CHANNEL - Embodiments of a wireless communication system and methods allocating bandwidth are generally described herein. Other embodiments may be described and claimed. In some embodiments, an estimated requested bandwidth is included in a contention code. Additionally, a mobile station may reuse a previously used contention code that resulted in successful access to a base station. Further, a base station may determine or predict contention patterns and allocate codes based on the patterns. | 03-31-2011 |
20110096737 | COVERAGE LOSS RECOVERY IN A WIRELESS COMMUNICATION NETWORK - Embodiments of the present disclosure describe methods, apparatus, and system configurations for coverage loss recovery in a wireless communication network. A method includes receiving, by a base station of a wireless communication network, a message from a mobile station that includes an indication that the mobile station is in coverage loss recovery, and a mobile station identifier to identify the mobile station. The method further includes determining whether a static context and/or a dynamic context associated with the mobile station identifier is stored at a previous-serving base station of the mobile station and transmitting a message to the mobile station to indicate which re-entry actions are to be performed to facilitate re-entry of the mobile station to the wireless communication network. Other embodiments may be described and/or claimed. | 04-28-2011 |
20110110227 | RADIO-LINK RELIABILITY USING MULTI-CARRIER CAPABILITY IN WIRELESS BROADBAND SYSTEMS - Embodiments of a system and methods for improving radio link reliability using multi-carrier capability in wireless systems are generally described herein. Other embodiments may be described and claimed. | 05-12-2011 |
20110110289 | DISTRIBUTED CONTROL ARCHITECTURE FOR RELAYS IN BROADBAND WIRELESS NETWORKS - Embodiments of systems and methods for distributed control relay architecture are described herein. Other embodiments may be described and claimed. | 05-12-2011 |
20110110329 | SECURITY UPDATE PROCEDURE FOR ZONE SWITCHING IN MIXED-MODE WIMAX NETWORK - A zone switching method is disclosed for use in a mixed-mode WiMAX environment. The zone switching method is useful in a WiMAX network having both 802.16e (legacy) and 802.16e/802.16m (mixed-mode, or advanced) entities, including mobile stations, base stations, and access service network entities. The zone switching method includes anchor authenticator relocation, dual security context maintenance, and security updates for both entry-before-break-capable mobile stations and for those mobile stations with slower switching speeds. The zone switching method enables an advanced mobile station to seamlessly switch from legacy to mixed-mode operation once the mixed-mode entities are available to service the 802.16m operations. | 05-12-2011 |
20110110343 | ENHANCING FRAGMENTATION AND DEFRAGMENTATION PROCEDURES IN BROADBAND WIRELESS NETWORKS - A preemption system enables successful transmission of multiple service data units (SDUs) across a wireless interface. The preemption system addresses out-of-order transmissions of fragments of SDUs, such that the receiver is able to process each successfully. The preemption system enables a higher-priority SDU to simultaneously be transmitted with a lower-priority SDU, so that delays in processing the lower-priority SDU does not negatively affect processing of the higher-priority SDU. The preemption system also addresses non-automatic repeat request medium access controller (non-ARQ MAC) connections that only use hybrid automatic repeat request (HARQ), in which the HARQ transmission may cause out-of-order delivery of SDU fragments. | 05-12-2011 |
20110111754 | Neighbor List Broadcasting Techniques - Techniques are disclosed that involve the indication of neighbor base stations. For instance, a base station may generate and wirelessly transmit a message that indicates a plurality of neighboring base stations. This message may include an indicator having one or more wildcard values. Through the employment of such wildcard values, the indicator may provide information corresponding to the plurality of neighboring base stations. For instance, the indicator may indicate a plurality of base station identifiers (BSIDs). Alternatively, the indicator may indicate a plurality of preamble indices. As a further alternative, the indicator may indicate a plurality of carrier frequencies. Through the employment of such techniques, overhead can be saved without causing ambiguity in mobility management. | 05-12-2011 |
20110111757 | CELL RESELECTION MECHANISM FOR A BASE STATION WITH CLOSED SUBSCRIBER GROUP - Embodiments of systems and methods for cell selection in a wireless network are generally described herein. Other embodiments may be described and claimed. | 05-12-2011 |
20110134826 | RELAY DATA PATH ARCHITECTURE FOR A WIRELESS NETWORK - A system and method for forming a relay data path architecture in a wireless network is disclosed. The method comprises forming a separate layer-three data link in a wireless network between a relay station, a base station and an access service network gateway (ASN-GW). Each separate layer-three data link is mapped from the ASN-GW to a next element in the wireless network to form a data path from the ASN-GW to the relay station. Data packets can be sent between a mobile station and the ASN-GW through each layer-three data link using a tunneling protocol such that each layer-three data link forms a separate tunnel. | 06-09-2011 |
20110134834 | Coordinating Broadcast Operations in a Mobile Wireless Network With Overlaid Cells - Advertising in connection with handing off a cell from one cell to another may be facilitated by segregating communication descriptors into a common part that does not change in different types of cells and a unique part that changes in different types of cells. The unique parts may be advertised more frequently than the common parts. | 06-09-2011 |
20110134896 | APPARATUS AND METHODS FOR UPGRADING AN AIRLINK IN A WIRELESS SYSTEM - Embodiments of systems and methods for upgrading an airlink in wireless system are described herein. Other embodiments may be described and claimed. | 06-09-2011 |
20110216722 | CONTENTION-BASED TRANSMISSION WITH CONTENTION-FREE FEEDBACK FOR REDUCING LATENCY IN LTE ADVANCED NETWORKS AND ENHANCED PUCCH - Methods for contention-based transmission with contention-free feedback for reduced latency in LTE Advanced networks and an enhanced PUCCH are generally disclosed herein. User equipment (UE) may transmit a contention sequence on a physical uplink control channel (PUCCH) to an enhanced-Node B (eNB) and may concurrently transmit data requesting uplink resources on a physical uplink shared channel (PUSCH) to the eNB. The contention sequence is transmitted on the PUCCH in accordance with a format that is assigned by the eNB. The contention sequence is either randomly selected by the UE or assigned by the eNB. When the contention sequence and data are not successfully received by the eNB, the UE may fall back to a more conventional random access channel (RACH) procedure for uplink resource allocation. | 09-08-2011 |
20110216735 | LEGACY AND ADVANCED ACCESS SERVICE NETWORK INTERNETWORKING - Embodiments of the present disclosure describe methods, apparatus, and system configurations for transferring wireless connections among legacy and advanced access service networks. | 09-08-2011 |
20110216740 | HANDOVER BETWEEN LEGACY AND NON-LEGACY WIMAX NETWORKS - Embodiments of a system and method for handover and zone switching between legacy and non-legacy base stations are provided. In certain embodiments, a fast ranging IE allocation is used to transfer a dedicated allocation to a mobile station for ranging with a target base station. | 09-08-2011 |
20110216741 | SEAMLESS CELL RECONFIGURATION IN BROADBAND WIRELESS NETWORKS - Embodiments of a system and method for wireless communication are provided. In certain embodiments, systems and methods for providing seamless reconfiguration of a network which incorporate known features of the network. In some embodiments, the mobile station implements a hand over from one physical base station to the same physical base station, so as to allow that base station to reconfigure and update configuration parameters. | 09-08-2011 |
20110268102 | TECHNIQUES FOR FORMATTING SIGNALS FOR TRANSMISSION USING A WIRELESS NETWORK - Techniques are described for forming signals for transmission to a receiver. Two transmitters can form resource blocks with different Physical Uplink Control Channel (PUCCH) demodulation reference signal (DMRS) patterns that are orthogonal over time and/or frequency to each other. The transmitters can simultaneously transmit the same resource block but with different DMRS patterns. If a receiver is mounted with two antennas, the receiver can utilize a MIMO receiver to differentiate resource blocks from two transmitters. | 11-03-2011 |
20110312366 | UPLINK POWER HEADROOM CALCULATION AND REPORTING FOR OFDMA CARRIER AGGREGATION COMMUNICATION SYSTEM - A carrier aggregation power headroom reporting method is disclosed. User equipment selects from one of four possible definitions of a single parameter used to calculate the power headroom of the user equipment. The user equipment uses the parameter to calculate the power headroom for two different equations. The two results are transmitted to the enhanced base station. | 12-22-2011 |
20110317650 | TECHNIQUES TO COUPLE HARQ-ARQ IN WIRELESS NETWORKS - An embodiment of the present invention provides an apparatus, comprising a transceiver adapted to reduce ARQ overhead by coupling HARQ and ARQ feedback signaling and defining different HARQ burst regions that enable different regions to use different HARQ feedback configurations based on channel quality or QoS requirements. | 12-29-2011 |
20120011569 | SYSTEM AND METHOD FOR PROTECTING MAC CONTROL MESSAGES - A system to protect MAC control messages is presented. In one embodiment, the system comprises a processor, a memory coupled to the processor, and a communication device coupled to the processor to communicate wirelessly over multiple sub-channels in an orthogonal frequency division multiple access (OFDMA) wireless network. The communication device is operable to determine that a MAC control message is protected if an indicator within the MAC control message is set. The communication device validates, if the indicator is set, integrity of the MAC control message in conjunction with a CMAC (cipher-message authentication code) tuple concatenated with the MAC control message. | 01-12-2012 |
20120038521 | Configurable common rerfernce signal port for reference signal received power in distributed antenna systems - A method of determining reference signal received power (RSRP) by user equipment (UE) associated with a distributed antenna system (DAS) may include detecting at least three different reference signals in one or more common reference signals (CRSs) that are associated with different antennas in the DAS. The method may also include determining at least three different RSRPs corresponding to the at least three different reference signals. The at least three different RSRPs may be level 3 filtered to produce at least three corresponding filtered powers. The UE may report a maximum of the at least three corresponding filtered powers to the distributed antenna system. | 02-16-2012 |
20120039226 | BASE STATION SELECTION METHOD FOR HETEROGENEOUS OVERLAY NETWORKS - A base station selection method is disclosed to select between two base stations for connecting a mobile device in a wireless neighborhood to a network. The wireless neighborhood may support multiple carriers and multiple radio access technologies. The base station selection method performs mobility estimation of the mobile device, where possible, to perform cell selection, but is also capable of performing cell selection without knowing the mobility of the device. Considerations such as the battery level of the mobile device, traffic demands of the network, and load balancing of network resources are used to make optimal selections for the mobile device as it travels through the wireless neighborhood. | 02-16-2012 |
20120063442 | TECHNIQUES FOR QUICK ACCESS CHANNEL INFORMATION LOADING IN WIRELESS NETWORKS - An embodiment of the present invention provides a method of quick access channel information loading in wireless networks, comprising mapping at least one quick access channel to one distributed resource unit of control tiles, said control tiles being spread across consecutive sub-carriers and consecutive OFDMA symbols, wherein each control tile and a predetermined number of sub carriers are used to send a bandwidth indicator and a predetermined number of sub carriers are used to send a bandwidth request message, and wherein there exist unique orthogonal sequences for the bandwidth indicator and each of the sequences are capable of being selected as a preamble sequence. | 03-15-2012 |
20120082077 | APPARATUS AND METHODS OF TIME DOMAIN MULTIPLEXING SOLUTIONS FOR IN-DEVICE COEXISTENCE - Embodiments of systems and methods for time domain multiplexing solutions for in-device coexistence are generally described herein. Other embodiments may be described and claimed. | 04-05-2012 |
20120082082 | FRAMEWORK FOR COORDINATED MULTIPOINT TRANSMISSION BASED ON A MULTICELL MAC/RRC DESIGN - Briefly, in accordance with one or more embodiments, two or more cells are configured to perform coordinated multipoint (CoMP) transmission for one or more user equipment devices with a common media access control (MAC) or a common radio resource control (RRC). Measurement information is received from the one or more user equipment devices. One or more of the cells may be deactivated, or one or more additional cells may be activated for coordinated multipoint transmission based at least in part on the measurement information. | 04-05-2012 |
20120082084 | METHOD AND APPARATUS TO FACILITATE MOBILE RELAY AND GROUP MOBILITY - A method and system to facilitate mobile relay and group mobility in a wireless network. In one embodiment of the invention, the wireless network facilitates a mobile relay station that has logic to switch communication with a first base station to a second base station while maintaining logical communication with its associated mobile station(s). By doing so, the handover of the mobile relay station from a source base station to a target base station is transparent to the mobile station(s) that are connected with the mobile relay station in one embodiment of the invention. | 04-05-2012 |
20120163291 | Physical uplink control channel Interference Mitigation in heterogenous networks - In some embodiments, a wireless device comprises a baseband processor, a control module coupled to the signal processor and comprising logic to map a first set and at least one redundant set of physical uplink control channel (PUCCH) blocks into a subframe structure, wherein the at least one redundant set of PUCCH blocks is embedded in an interior section of the subframe, an RF modulator/demodulator coupled to the baseband processor to modulate/demodulate the PUCCH blocks for communication within a predetermined frequency range, and a transmitter to transmit the PUCCH blocks. Other embodiments may be described. | 06-28-2012 |
20120257575 | CO-PHASING OF TRANSMISSIONS FROM MULTIPLE INFRASTRUCTURE NODES - Briefly, in accordance with one or more embodiments, mobile station or user equipment receives pilot signals from two or more infrastructure nodes in a distributed antenna system, and calculates phase or timing information, or combinations thereof, from the pilot signals. The mobile station feeds back the phase or timing information, or combinations thereof, to the infrastructure nodes, and then receives one or more subsequent transmissions from the infrastructure nodes with phase shift or timing adjustments, or combinations thereof, calculated by the infrastructure nodes and applied to the spatial streams transmitted by the infrastructure nodes. | 10-11-2012 |
20120302246 | ZONE SWITCHING IN MIXED-ZONE AIR INTERFACE - Embodiments of a system and method for wireless communication are provided. In certain embodiments, a base station provides a first zone using a first version of the communication standard and a second zone using a second version of the communication standard. In certain embodiments, the base station determines whether a mobile station communicating with the base station in the first zone can support the second version of the communication standard used in the second zone. When the mobile station can support the second version of the communication standard, the base station can send a command to switch the mobile station to the second zone. | 11-29-2012 |
20130137398 | LOCAL SECURITY KEY UPDATE AT A WIRELESS COMMUNICATION DEVICE - A system and method for updating a security key at a base station (BS) is disclosed. The method comprises the operation of transmitting a handover command from the base station to a mobile station. The operation of incrementing a base station instance of an authentication key counter at the base station follows. The next operation of the method can be calculating a new local authentication key (AK*) at the base station using the base station instance of the authentication key counter and an authentication key (AK). The AK may be previously obtained from an authenticator. The method further includes communicating by the base station with the mobile station using the new local authentication key after a predetermined action time. | 05-30-2013 |
20130148560 | COMPONENT CARRIER UPLINK MAXIMUM TRANSMISSION POWER REPORTING SCHEME FOR CARRIER AGGREGATION - Embodiments of the present disclosure describe method, apparatus, and system configurations for reporting uplink maximum transmission power for each component carrier of a carrier aggregation scheme. A method includes establishing, by a user equipment (UE), a communication link with an enhanced node B (eNB) station of an Internet Protocol (IP) based wireless communication network, and sending, by the UE to the eNB station, a message that includes information for a Power Headroom Report (PHR) and a value that indicates an uplink maximum transmission power P | 06-13-2013 |
20130208666 | COMPONENT CARRIER UPLINK MAXIMUM TRANSMISSION POWER REPORTING SCHEME FOR CARRIER AGGREGATION - Embodiments of the present disclosure describe method, apparatus, and system configurations for reporting uplink maximum transmission power for each component carrier of a carrier aggregation scheme. A method includes establishing, by a user equipment (UE), a communication link with an enhanced node B (eNB) station of an Internet Protocol (IP) based wireless communication network, and sending, by the UE to the eNB station, a message that includes information for a Power Headroom Report (PHR) and a value that indicates an uplink maximum transmission power P | 08-15-2013 |
20130265915 | SCHEDULER SYSTEM FOR SIMULTANEOUS TRANSMIT AND RECEIVE - A wireless communication system and method schedules a beginning of an uplink transmission from a wireless device to a network transceiver with a first predetermined period of time after an end of a downlink transmission from the network transceiver device to the wireless device is scheduled. The uplink transmission and the downlink transmission comprise the same carrier frequency. The first predetermined period of time is related to a time required for the wireless device to switch from between receive and transmit modes. A beginning a downlink transmission from the network transceiver to the wireless device is scheduled with a second predetermined period of time after an end of an uplink transmission from the wireless device to the network transceiver is scheduled. The second predetermined period of time is related to a time required for the wireless device to switch between transmit and receive modes. | 10-10-2013 |
20130265981 | UPLINK POWER CONTROL SCHEME FOR DISTRIBUTED RRH SYSTEMS WITH SAME CELL ID - Uplink power control in a macro cell in a wireless network comprises transmitting a reference signal from a base station device to at least one wireless device within the macro cell. The macro cell comprises the base station device and at least one radio transmitter device that is communicatively coupled to and remote from the base station device. The base station device and one or more radio transmitter devices could be selected to be a transmission point, a reception point or a combination thereof, for each wireless device. Information relating to a transmission power of the base station device is also transmitted to the at least one wireless device. An uplink signal is received from the at least one wireless device containing information relating to an uplink power determination that is based on the reference signal and the information relating to the transmission power of the base station device. | 10-10-2013 |
20130287000 | TECHNIQUES FOR FORMATTING SIGNALS FOR TRANSMISSION USING A WIRELESS NETWORK - Techniques are described for forming signals for transmission to a receiver. Two transmitters can form resource blocks with different Physical Uplink Control Channel (PUCCH) demodulation reference signal (DMRS) patterns that are orthogonal over time and/or frequency to each other. The transmitters can simultaneously transmit the same resource block but with different DMRS patterns. If a receiver is mounted with two antennas, the receiver can utilize a MIMO receiver to differentiate resource blocks from two transmitters. | 10-31-2013 |
20130288728 | CO-PHASING OF TRANSMISSIONS FROM MULTIPLE INFRASTRUCTURE NODES - Briefly, in accordance with one or more embodiments, mobile station or user equipment receives pilot signals from two or more infrastructure nodes in a distributed antenna system, and calculates phase or timing information, or combinations thereof, from the pilot signals. The mobile station feeds back the phase or timing information, or combinations thereof, to the infrastructure nodes, and then receives one or more subsequent transmissions from the infrastructure nodes with phase shift or timing adjustments, or combinations thereof, calculated by the infrastructure nodes and applied to the spatial streams transmitted by the infrastructure nodes. | 10-31-2013 |
20140051485 | TECHNIQUES FOR MANAGING IDLE STATE ACTIVITY IN MOBILE DEVICES - An apparatus may comprise a radio-frequency (RF) transceiver and a message aggregation module arranged to intercept multiple messages from one or more mobile data applications during an idle mode of a device, one or more of the multiple messages operable to trigger a transition of the device from the idle mode to a connected mode by causing a radio resource control message to be sent from the device to a radio access network, the message aggregation module to store the multiple messages in a buffer associated with the one or more mobile data applications in order to maintain the device in the idle mode, and schedule for transmission by the RF transceiver the stored messages at a defined time instance based on a delay tolerance for the one or more mobile data applications when the device is in the connected mode. Other embodiments are disclosed and claimed. | 02-20-2014 |
20140064201 | APPARATUSES AND METHODS FOR CSI-RS CONFIGURATION IN DISTRIBUTED RRH SYSTEMS - Apparatuses and methods for channel state information reference signal (CSI-RS) configuration in distributed remote radio head (RRH) systems are described. A transmission point selection module can receive a user equipment (UE) signal via a transmission point from a plurality of transmission points sharing a single cell identification. A downlink transmission point can be selected based on the UE signal. The UE can then be configured to report CSI-RS measurements for the selected downlink transmission point. | 03-06-2014 |
20140369322 | PERFORMING MULTIPLE TIMING ADVANCE ADJUSTMENTS IN A CARRIER AGGREGATION COMMUNICATION SYSTEM - Technology for performing multiple timing advances in a carrier aggregation communication system is disclosed. A method comprises communicating a random access preamble from a UE to an eNodeB via a PCell associated with a selected component carrier of the carrier aggregation. A Random Access Response (RAR) is received at the UE from the eNodeB for the PCell. The RAR contains a timing advance adjustment instructing the UE to adjust a timing of a PCell wireless communication. A request is received at the UE to adjust a timing of an SCell communication. A random access preamble is communicated to the UE via the SCell. An RAR is received at the UE from the eNodeB for the SCell to adjust a timing advance of the SCell wireless communication. | 12-18-2014 |