Patent application number | Description | Published |
20080307284 | METHOD AND APPARATUS FOR INDICATING A TEMPORARY BLOCK FLOW TO WHICH A PIGGYBACKED ACK/NACK FIELD IS ADDRESSED - A method and apparatus for indicating a temporary block flow (TBF) to which a piggybacked acknowledgement/non-acknowledgement (PAN) field is addressed are disclosed. A sequence may be generated from a temporary flow identity (TFI) to which the PAN field is addressed and masked with a PAN check sequence (PCS). A radio block including a PAN field and a masked PCS is transmitted. The PCS may be masked with one of TFIs which is selected in accordance with a rule pre-agreed. A secondary identifier may indicate a TBF to which the PAN field is addressed. A special value may be used to represent all TBFs assigned and a secondary identifier may indicate a TBF to which the PAN field is addressed. A special value on the PAN field may be used for control purposes for indicating an action affecting a group of receiving stations listening to the radio block. | 12-11-2008 |
20080310388 | TRANSMISSION OF RADIO BLOCKS IN REDUCED TRANSMISSION TIME INTERVAL MODE - A method and apparatus for operating a wireless transmit receive unit (WTRU) in basic transmission time interval (BTTI) and reduced transmission time interval (RTTI) mode includes a WTRU in RTTI mode and a WTRU in BTTI mode receiving a plurality of coded radio blocks, the WTRU in RTTI mode decoding all of the plurality of coded radio blocks and the WTRU is in BTTI mode decoding a portion of the plurality of coded radio blocks. | 12-18-2008 |
20090022062 | METHOD AND APPARATUS FOR PERFORMING INTER-RADIO ACCESS TECHNOLOGY MEASUREMENTS TO SUPPORT GERAN BAND SCAN - A method and apparatus for performing inter-radio access technology (RAT) measurements includes receiving a long term evolution (LTE) measurement quantity. A measurement gap is received. Measurements for available global system for mobile communication (GSM) cells are performed, and the measurement results are reported. | 01-22-2009 |
20090022137 | SIGNALING IN A WIRELESS COMMUNICATION SYSTEM - A method of operating a wireless transmit receive unit (WTRU) and a WTRU configured to receive a radio link control (RLC)/a medium access control (MAC) header. The header is coded for reduced transmission time interval (RTTI) operation. The header includes a 16-bit cyclic redundancy check (CRC) of an RLC/MAC payload associated with the RLC/MAC header. | 01-22-2009 |
20090052378 | METHOD AND APPARATUS FOR RELIABLY TRANSMITTING RADIO BLOCKS WITH PIGGYBACKED ACK/NACK FIELDS - Piggybacked acknowledgement/non-acknowledgement (PAN) bits in unreliable bit positions of a modulated symbol are swapped with data bits located in more reliable bit positions. In addition, a power offset value may be applied to the symbols containing the PAN bits. | 02-26-2009 |
20090080565 | PULSE SHAPING FOR EGPRS-2 - A method and apparatus are disclosed for wireless transmission using two or more pulse shaping filters. Wireless transmit/receive units (WTRUs) and network entities are capable of utilizing a narrow band pulse shaping filter, a wideband pulse shaping filter, or both. The network entity and/or the WTRU select a pulse shaping filter to be used and transmits the selection by means of signaling. The signaling may be performed through layer | 03-26-2009 |
20090086685 | METHOD AND APPARATUS FOR TIME-BASED FAST ACK/NACK RESPONSE OPERATION WITH ENHANCED GENERAL PACKET RADIO SERVICE 2 UPLINK - A method and apparatus for time-based fast positive acknowledgement (ACK)/negative acknowledgement (NACK) reporting (FANR) operation with enhanced general packet radio service 2 uplink (HUGE) are disclosed. A wireless transmit/receive unit (WTRU) configures downlink FANR operation and EGPRS-2 mode uplink transmission not to be in conflict. A modulation and coding scheme (MCS) for the EGPRS-2 mode may be limited to an MCS containing at most two RLC data blocks. Alternatively, three or more piggybacked ACK/NACK (PAN) bits may be used for a time-based FANR operation if an EGPRS-2 mode is configured. Alternatively, at least one PAN bit may indicate an ACK/NACK for a group of RLC data blocks. The number of PAN bits for a time-based FANR operation may be configured by the network. The downlink FANR operation may be dynamically switched between time-based and SSN-based. | 04-02-2009 |
20090086686 | METHOD TO SIMPLIFY UPLINK STATE FLAG (USF) DECODING COMPLEXITY FOR REDHOT A AND B WIRELESS TRANSMIT/RECEIVE UNITS - A method and apparatus allow for reliable and low-complexity decoding of EGPRS2 communication bursts when RTTI and BTTI equipment operate on the same timeslot(s). Various configurations for the Uplink State Flag (USF) mapping employ adjustable bit swapping of some or all USF channel-coded bits in communication bursts. Configurations that allow for an adjustable use of the symbol mapping stage in the transmitter and receiver to allow for more throughput and/or reduced complexity are also disclosed. Admissible mapping rules are known to the receiver and transmitter and therefore reduce the complexity of decoding this information. In order to increase throughput for EGPRS2 communication bursts, RTTI transmissions of different modulation types or EGPRS/EGPRS2 modulation and coding schemes during a BTTI interval are introduced that allow for reliable USF decoding and reduced decoder complexity. | 04-02-2009 |
20090135773 | MEASUREMENT REPORTING FOR TRANSMISSIONS SUPPORTING LATENCY REDUCTION - A method for accounting for the presence of a piggybacked acknowledgement/negative acknowledgement (PAN) field in reporting a received signal quality for a current wireless transmit/receive unit (WTRU) is disclosed. A determination is made whether a received radio block is intended for the current WTRU. The received signal quality of the radio block is measured if the radio block is intended for the current WTRU. Bits from the PAN field are included in determining the received signal quality of the radio block based on a preconfigured option. The radio block measurement is included in a measurement report if a data header of the radio block is not addressed to the current WTRU but the PAN field is addressed to the current WTRU. | 05-28-2009 |
20090141782 | VOICE AND DATA COMMUNICATION SERVICES USING ORTHOGONAL SUB-CHANNELS - A method for using orthogonal sub-channels (OSCs) in a wireless transmit/receive unit (WTRU). A capability report is received from the WTRU, including an indication whether the WTRU supports OSCs. A determination is made whether to use OSCs for the WTRU and the result of the determination is signaled to the WTRU. If OSCs are used with the WTRU, the signaling includes an OSC assignment for the WTRU. In one embodiment, two resources are assigned to the WTRU and each resource is assigned to a different OSC. | 06-04-2009 |
20090163158 | SUPPORT OF DOWNLINK DUAL CARRIERS AND OTHER FEATURES OF EVOLVED GERAN NETWORKS - A wireless transmit receive unit (WTRU) configured to indicate REDHOT and HUGE multi-slot capability to a network. The REDHOT multi-slot capability is included in a MS Classmark | 06-25-2009 |
20090201880 | METHOD AND APPARATUS FOR SIGNALING IN MULTIPLE USER ONE-SLOT OPERATION IN WIRELESS COMMUNICATION - Disclosed are multiple embodiments of method and apparatus to facilitate Multiple Users Reusing One Timeslot (MUROS) operation in wireless communications. A pair of wireless transmit/receive units (WTRUs) may be multiplexed onto a timeslot using a same pulse format. A WTRU may communicate on a network using MUROS technology both on the downlink (DL) and the uplink (UL), and may use a first pulse format on the DL and a second different pulse format on the UL. Pulse format support information to facilitate MUROS operation may be communicated between a network and a WTRU. The support information may be communicated in Radio Resource Control (RRC) messages. A network may allow for concurrent operation of WTRUs using different types of MUROS technology. For example, a network may include WTRUs using MUROS based on orthogonal sub-channels (OSC) while other WTRUs use MUROS based on an interference-canceling technology such as Downlink Advanced Receiver Performance (DARP) Phase I or Phase II. | 08-13-2009 |
20090221329 | RELIABILITY DETECTION OF CHANNEL QUALITY INDICATOR (CQI) AND APPLICATION TO OUTER LOOP POWER CONTROL - A method for determining a channel quality in wireless communications includes receiving a high speed shared control channel (HS-SICH) transmission. An expected number of HS-SICH transmissions and a number of unsuccessful HS-SICH transmissions are counted. The number of unsuccessful HS-SICH transmissions includes a number of failed HS-SICH transmissions and a number of missed HS-SICH transmissions. The expected number of HS-SICH transmissions and the number of unsuccessful HS-SICH transmissions over a fixed time period are periodically reported, whereby the reporting is an indication of the channel quality. | 09-03-2009 |
20090233634 | PUBLIC WARNING SYSTEM FOR MOBILE DEVICES - A global system for mobile communications (GSM) enhanced data rate for GSM evolution (EDGE) radio access network (GERAN) compatible wireless transmit/receive unit (WTRU) and methods for receiving public warning system (PWS) messages via paging channels. The PWS messages may include earthquake and tsunami warning system (ETWS) messages. The PWS messages may include primary messages and secondary messages. A corresponding GERAN base station and methods capable of transmitting PWS messages. | 09-17-2009 |
20090274125 | METHOD AND SYSTEM FOR ORGANIZING THE CELLS OF A WIRELESS COMMUNICATION SYSTEM AND ALLOCATING RESOURCES TO PROVIDE MULTIMEDIA BROADCAST SERVICES - A system and method for configuring the system for configuring a wireless multi-cell communication to provide multimedia broadcast services (MBMS) to a plurality of wireless transmit/receive units (WTRUs). The cells of the communication system are organized into a plurality of sets of one or more cells. Resource units are assigned to each set of cells in the communication system. The assigned resource units are allocated in each cell of the communication system for MBMS transmission. The WTRUs receive information indicating how to access the resource units allocated for MBMS transmission. The WTRUs receive the MBMS from one or more of the cells of the communication system. | 11-05-2009 |
20090279625 | LEGACY-COMPLIANT BURST FORMATS FOR MULTIPLE USERS REUSING ONE SLOT (MUROS) OPERATION - A burst may include a three-bit tail sequence derived from a four-bit Enhanced General Packet Radio Service (EGPRS)-2 tail sequence. A legacy wireless transmit/receive unit (WTRU) may be multiplexed onto an Orthogonal Sub-channel (OSC) resource, and may receive a burst including four-bit Quadrature Phase Shift Keying (QPSK)-type tail sequences that decode to legacy three-bit Gaussian Minimum Shift Keying (GMSK)-type or 8PSK-type tail sequences. The legacy WTRU processes the tail sequences, unaware that the burst was received on an OSC sub-channel or that the tail sequences were encoded as QPSK-type tail sequences. An OSC QPSK tail sequence may be chosen such that it corresponds to the legacy GMSK tail sequence format when decoded on an OSC sub-channel, but also so that a power-versus-time mask, power constraint, or other criteria on the other MUROS sub-channel may be optimized. Different tail sequences may be used in OSC bursts, depending upon whether the WTRUs multiplexed onto a timeslot are legacy WTRUs or include OSC-specific features. | 11-12-2009 |
20090316640 | METHOD FOR CHANNEL ASSIGNMENTS IN WIRELESS SYSTEMS - A wireless transmit/receive unit includes a receiver and a processor. The receiver is configured to receive a plurality of high-speed shared control channels (HS-SCCHs), wherein the plurality of HS-SCCHs are received over a plurality of discrete time intervals. The processor is configured to instruct the receiver to receive all of the plurality of HS-SCCHs during one of the plurality of discrete time intervals. | 12-24-2009 |
20090323588 | SIGNALING FOR MULTI-USER REUSING ONE SLOT (MUROS) OPERATION IN GSM - Methods and apparatus for improved Multiple Users Reusing One Slot (MUROS) operation include two or more wireless transmit/receive units (WTRU) multiplexed onto multiple sub-channels in a single timeslot. Addressing information included in layer two headers, Radio Resource Control (RRC) messages, and layer one parameters in a SACCH/FACCH transmission indicate that the transmission is intended for a particular WTRU. A FACCH transmission may be sent on a sub-channel reserved for another WTRU. Stealing bits in a voice frame may be set to indicate that the FACCH transmission is intended for a WTRU on the sub-channel reserved for another WTRU. Different WTRUs in a multiplexed group may be configured to decode layer one parameters in a SAACH according to alternating patterns. | 12-31-2009 |
20100002648 | METHOD AND SYSTEM FOR TRANSFERRING WIRELESS TRANSMIT/RECEIVE UNIT-SPECIFIC INFORMATION - The present invention is related to a method and system for transferring wireless transmit/receive unit (WTRU)-specific information to support enhanced uplink (EU) operation in a wireless communication system. A radio network controller (RNC) obtains WTRU-specific information, and transfers the WTRU-specific information to the Node-Bs. Each Node-B is configured to schedule uplink transmissions from a WTRU and utilizes the WTRU-specific information in operation of EU transmissions. | 01-07-2010 |
20100008344 | SELF-CONFIGURABLE WIRELESS LOCAL AREA NETWORK NODE - In a wireless local area network including an access controller (AC) and an access points (AP), the AC transmits a functionality inquiry to the AP. Upon receiving the inquiry, the AP transmits a query response including the functional capabilities of the AP. The AC then generates a map of the functional capabilities present in the network based on the inquiry response. Conflicting or redundant functional capabilities are identified and are disabled, enabled, or reconfigured by instructions from the AC. The AC may selectively enable and/or disable functional capabilities at nodes in the network to provide a more balanced load on the network, and to provide for load sharing by allocating functionalities between and among network nodes having common functional capabilities to satisfy a variety of situations encountered in the network. | 01-14-2010 |
20100067440 | METHOD AND APPARATUS FOR CONTROL CHANNEL OPERATION IN GERAN - A method and apparatus to improve the quality of control signaling based on signaling messages controlling speech or data transmission over an air interface between at least two Multi-User-Reusing-One-Slot/Voice Services Over Adaptive Multiuser Channels On One Slot (MUROS/VAMOS) capable wireless transmit/receive units (WTRUs). The WTRUs communicate with each other at the physical layer via signaling messages transmitted in control channels such as Slow Associated Control Channel (SACCH) and Fast Associated Control Channel (FACCH). Speech services are provided simultaneously over the same physical channel, and the Timing Advance (TA) and Power Command (PC) parameters of a WTRU are multiplexed in several occurrences of the SACCH or FACCH to increase the number of channel bits available for channel coding. | 03-18-2010 |
20100081445 | METHOD AND APPARATUS FOR INCREASING CONTROL CHANNEL CAPACITY IN GERAN - A method and apparatus may be used for increasing control channel capacity in Global System for Mobile communications (GSM). In a first method, the Multi-User-Reusing-One-Slot or Voice Services Over Adaptive Multiuser Channels On One Slot (MUROS/VAMOS) concept may be applied to timeslots or bursts carrying a Stand Alone Dedicated Control Channel (SDCCH). In a second method, the control signaling needed to support call setup for voice traffic may be switched over to a MUROS/VAMOS-capable traffic channel as early as possible instead of being handled through the SDCCH. In a third method, the channel coding format of the signaling bursts and/or bursts sent and received on the allocated traffic or SDCCH timeslots or resources may be modified to provide for additional link robustness and to overcome an intrinsic penalty when allowing for two simultaneous wireless transmit/receive units (WTRUs) on a timeslot used for signaling. In a fourth method, a WTRU may notify the GSM network that the WTRU is MUROS/VAMOS capable. | 04-01-2010 |
20100099439 | METHOD AND APPARATUS FOR REALIZATION OF A PUBLIC WARNING SYSTEM - Disclosed are methods and apparatus for the dissemination of public warning system (PWS) information. In one embodiment, a wireless transmit/receive unit receives a Paging Request message that includes PWS notification information. In another embodiment, a base station is configured to transmit a Paging Request message that includes public warning system (PWS) notification information. In another embodiment, a WTRU begins a procedure for the assignment of a radio resource for the WTRU. The procedure may be, for example, a Random Access Channel (RACH) procedure. The WTRU may monitor a control channel for an assignment message related to the radio resource. In response to receiving a PWS notification, the WTRU may terminate the resource assignment procedure. | 04-22-2010 |
20100215011 | METHOD AND APPARATUS FOR SWITCHING A RESOURCE ASSIGNMENT MODE FOR A PLURALITY OF COMPONENT CARRIERS - Techniques for configuring and switching a resource assignment mode for a plurality of component carriers are disclosed. A wireless transmit/receive unit (WTRU) has a capability of supporting multiple resource assignment modes such that a resource assignment mode is configured for a plurality of component carriers that are allocated for the WTRU, and the WTRU attempts to decode a control channel based on the configured resource assignment mode. The resource assignment mode may be configured for the WTRU via higher layer signaling. The resource assignment mode may be specific to the WTRU, or specific to a component carrier or a group of component carriers. The resource assignment mode may be configured separately for a downlink component carrier and an uplink component carrier. The resource assignment mode includes a separate assignment mode with component carrier indication, a separate assignment mode without component carrier indication, or a joint assignment mode. | 08-26-2010 |
20100227569 | CONTROL CHANNEL SIGNALING AND ACQUISITION FOR CARRIER AGGREGATION - A method and apparatus for handling a control channel for carrier aggregation in wireless communications. The method includes determining which component carrier to listen to, detecting the downlink control channel, processing mapping information related to downlink and uplink transmissions and operating discontinuous reception with respect to carrier aggregation. The method also includes detecting a component carrier, determining the component carrier type and locating the anchor component carrier, if necessary, where the anchor component carrier carries the carrier aggregation information. | 09-09-2010 |
20100246532 | WIRELESS COMMUNICATION METHOD AND SYSTEM FOR IMPLEMENTING MEDIA INDEPENDENT HANDOVER BETWEEN TECHNOLOGICALLY DIVERSIFIED ACCESS NETWORKS - A wireless communication method and device may be used to perform a media independent handover between technologically diversified access networks. A wireless transmit/receive unit (WTRU) may be configured to communicate with a plurality of technologically diversified access networks, such as Institute of Electrical and Electronics Engineers (IEEE) 802.X networks and Third Generation Partnership Project (3GPP) networks. The WTRU may include a plurality of access network specific protocol stacks and a media independent handover (MIH) function. The WTRU may be configured to communicate information with each of the plurality of access network specific protocol stacks using protocols specific to each to the plurality of access network protocol stacks. | 09-30-2010 |
20100273506 | REFERENCE SIGNALS FOR POSITIONING MEASUREMENTS - Methods and apparatus for supporting reference signals for positioning measurements are disclosed. Methods include subframe configuration, subframe structures, measurement opportunities using a set of downlink subframes which are not all consecutive, handling of subframes containing reference signals and system signals such as synchronization signals, paging occasions and Multicast Broadcast Multimedia Service (MBMS), and related control signaling between a long term evolution (LTE) network and a wireless transmit/receive unit (WTRU). Moreover, methods to resolve allocation conflicts arising between positioning reference signals and other reference signals are disclosed. | 10-28-2010 |
20100316096 | METHOD AND APPARATUS FOR SYNCHRONOUS HARQ OPERATION AND INTERFERENCE AVOIDANCE - A method and apparatus for avoiding a collision. A collision may be avoided by allocating a first set of subframes to a backhaul link transmission, and allocating a second set of subframes to an access link transmission. In one example, the second set of subframes may be a non-overlapping set of subframes with respect to the first set of subframes. In a second embodiment, a collision may be avoided by receiving a data transmission from an evolved Node-B (eNB) and transmitting an uplink (UL) grant to a wireless transmit/receive unit (WTRU) and a first acknowledgement (ACK) to the eNB. The transmission may be in response to the received data transmission. The RN may avoid a collision by further transmitting an automatic ACK to the WTRU and transmitting a second UL grant to the WTRU. In a third embodiment, a collision between an access link transmission and a backhaul link transmission may be avoided by detecting a collision and determining an interface priority based on a collision occurrence type. | 12-16-2010 |
20110021154 | METHOD AND APPARATUS FOR MONITORING FOR A RADIO LINK FAILURE - Methods and apparatus are described for monitoring for a radio link failure in a long term evolution-advanced (LTE-A) system operated with carrier aggregation. The methods include criteria for determining radio link failure, recovery events, and the actions that a wireless transmit/receive unit (WTRU) may take upon the occurrence of such events. | 01-27-2011 |
20110026479 | METHOD AND SYSTEM FOR TRANSFERRING WIRELESS TRANSMIT/RECEIVE UNIT-SPECIFIC INFORMATION - The present invention is related to a method and system for transferring wireless transmit/receive unit (WTRU)-specific information to support enhanced uplink (EU) operation in a wireless communication system. A radio network controller (RNC) obtains WTRU-specific information, and transfers the WTRU-specific information to the Node-Bs. Each Node-B is configured to schedule uplink transmissions from a WTRU and utilizes the WTRU-specific information in operation of EU transmissions. | 02-03-2011 |
20110038271 | APPARATUS AND METHOD FOR UPLINK POWER CONTROL FOR A WIRELESS TRANSMITTER/RECEIVER UNIT UTILIZING MULTIPLE CARRIERS - A method and apparatus for determining uplink power in a wireless transmit receive unit (WTRU). The WTRU operates in a carrier aggregated system. The WTRU is configured to receive a plurality of uplink power parameters indexed to one of a plurality of uplink carriers and receive a transmit power control command indexed to the one of the plurality of uplink carriers. The WTRU is configured to determine a pathloss of the one of the plurality of uplink carriers and determine a transmit power for the one of the plurality of uplink carriers based on the plurality of power parameters, the transmit power control command, and the pathloss. | 02-17-2011 |
20110039568 | METHOD AND APPARATUS FOR CONTENTION-BASED UPLINK DATA TRANSMISSION - A method and apparatus for a wireless transmit receive unit (WTRU) to use a contention-based uplink communications channel, applies a rule-based restriction of access to the contention-based uplink channel that attempts to use at least one contention-free uplink channel allocation for uplink transmissions on a condition that at least one contention-free uplink channel allocation has been granted. | 02-17-2011 |
20110039577 | METHOD AND APPARATUS FOR SUPPORTING POSITIONING MEASUREMENTS - A method and apparatus for supporting positioning measurements. The methods include designating a reference cell, choosing a positioning signal, and, for inter-frequency measurements, determining which inter-frequency cell to measure and how to make such an inter-frequency positioning measurement. | 02-17-2011 |
20110069689 | METHOD AND APPARATUS FOR PROVIDING PEER-TO-PEER COMMUNICATION WITH NETWORK CONNECTION - A method and apparatus may be used for peer-to-peer communication. The method and apparatus may allow for network connectivity during the peer-to-peer communication session. The network connectivity may be provided via Scheduled and/or Unscheduled AP Connection times/periods. A station (STA) may be configured to negotiate access point (AP) Connection times/periods with a peer STA for a direct link which may be on a basic service set (BSS) channel or on a non-BSS channel. The STAs may communicate with the AP during the agreed AP Connection times/periods and return to the direct link for peer-to-peer communication. | 03-24-2011 |
20110103292 | DL Backhaul Control Channel Design For Relays - Methods and apparatus are described for providing compatible mapping for backhaul control channels, frequency first mapping of control channel elements (CCEs) to avoid relay-physical control format indicator channel (R-PCFICH) and a tree based relay resource allocation to minimize the resource allocation map bits. Methods and apparatus (e.g., relay node (RN)/evolved Node-B (eNB)) formapping of the Un downlink (DL) control signals, Un DL positive acknowledgement (ACK)/negative acknowledgement (NACK) and/or relay-physical downlink control channel (R-PDCCH) (or similar) in the eNB to RN (Un interface) DL direction are described. This includes time/frequency mapping of above-mentioned control signals into resource blocks (RBs) of multimedia broadcast multicast services (MBMS) single frequency network (MBSFN)-reserved sub-frames in the RN cell and encoding procedures for these. Also described are methods and apparatus for optimizing signaling overheads by avoiding R-PCFICH and minimizing bits needs for resource allocation. | 05-05-2011 |
20110134774 | COMPONENT CARRIER ACTIVATION/DEACTIVATION IN MULTI-CARRIER SYSTEMS - Methods and apparatus for addressing wireless transmit/receive unit (WTRU) behavior in response to configuration, configuration parameters and access issues related to the activation/deactivation process when the WTRU may be configured with multiple serving cells or carrier aggregation. | 06-09-2011 |
20110149867 | METHOD AND SYSTEM FOR DELIVERY OF ASSISTANCE DATA - A method and apparatus are used for providing assistance data to wireless transmit/receive units (WTRU)s. The assistance data may include information regarding neighboring access points (AP)s. The assistance data may be transmitted to WTRUs using multicast, broadcast, and/or point-to-point signaling. The assistance data may be used to facilitate ring and handover of WTRUs from one AP to another. | 06-23-2011 |
20110170488 | METHOD AND APPARATUS FOR PROVIDING PIGGYBACKED POSITIVE ACKNOWLEDGEMENT/NEGATIVE ACKNOWLEDGEMENT FIELD INDICATOR AND A POLLING INDICATOR - A method and apparatus of providing a piggybacked positive acknowledgement/negative acknowledgement (ACK/NACK) (PAN) field indicator (PANI) and a polling indicator are disclosed. A combined field of a PANI bit, a relative reserved block period (RRBP) bit and an EGPRS supplementary polling (ES/P) field may indicate a polling scheme and a presence of a PAN field. Alternatively, the presence of the PAN field in the data block may be indicated by using a specific training sequence. Alternatively, a forward error correction (FEC) coding may be performed on the data block including the header, and the presence of the PAN field may be indicated by scrambling the encoded bits corresponding the header with a specific scrambling sequence. Alternatively, a header check sequence (HCS) may be generated and the presence of the PAN field is indicated by mixing a predetermined sequence with the HCS. | 07-14-2011 |
20110205981 | MULTIPLEXING UPLINK L1/L2 CONTROL AND DATA - Methods and systems for transmitting scheduling requests in an LTE Advanced system are disclosed. Scheduling requests may be superimposed on HARQ ACK/NACK by multiplying the HARQ ACK/NACK by a value. Alternatively, scheduling requests may be channel-coded and multiplexed with other uplink control information. Scheduling requests can also be superimposed on reference signals by multiplying a reference signal by a value or by modulating a reference signal with a cyclic shift. Scheduling requests may also be jointly coded with HARQ ACK/NACK prior to transmission. Alternatively, ACK/NACK responses may be transmitted on assigned ACK/NACK PUCCH resources for a negative scheduling request transmission and on assigned scheduling request PUCCH resources for a positive scheduling request. Various collision handling mechanisms are also disclosed. | 08-25-2011 |
20110205992 | METHOD AND SYSTEM FOR PROVIDING CHANNEL ASSIGNMENT INFORMATION USED TO SUPPORT UPLINK AND DOWNLINK CHANNELS - A method and wireless transmit/receive unit (WTRU) for utilizing channel control information associated with enhanced uplink (EU) transmission is disclosed. The WTRU receives information via radio resource control (RRC) signaling and receives downlink (DL) control information for at least EU transmission. The WTRU determines whether the DL control information is intended for the WTRU based at least upon a first forty bit specific code sequence and a second forty bit specific code sequence received in at least one time slot and determines whether the DL control information is the first type or the second type. The WTRU utilizes the DL control information of the first type or the second type for at least EU transmission on a condition that the DL control information is intended for the WTRU. | 08-25-2011 |
20110216727 | VOICE AND DATA COMMUNICATION SERVICES USING ORTHOGONAL SUB-CHANNELS - A method for using orthogonal sub-channels (OSCs) in a wireless transmit/receive unit (WTRU). A capability report is received from the WTRU, including an indication whether the WTRU supports OSCs. A determination is made whether to use OSCs for the WTRU and the result of the determination is signaled to the WTRU. If OSCs are used with the WTRU, the signaling includes an OSC assignment for the WTRU. In one embodiment, two resources are assigned to the WTRU and each resource is assigned to a different OSC. | 09-08-2011 |
20110243066 | Uplink Control Data Transmission - Methods and systems for transmitting uplink control information and feedback are disclosed for carrier aggregation systems. A user equipment device may be configured to transmit uplink control information and other feedback for several downlink component carriers using one or more uplink component carriers. The user equipment device may be configured to transmit such data using a physical uplink control channel rather than a physical uplink shared channel. The user equipment device may be configured to determine the uplink control information and feedback data that is to be transmitted, the physical uplink control channel resources to be used to transmit the uplink control information and feedback data, and how the uplink control information and feedback data may be transmitted over the physical uplink control channel. | 10-06-2011 |
20110249578 | CHANNEL STATE INFORMATION TRANSMISSION FOR MULTIPLE CARRIERS - Channel state information is reported in periodic and aperiodic reports for multiple component carriers or serving cells. Channel state information may be reported for a subset of aggregated downlink carriers or serving cells. For an aperiodic report, the carrier(s)/serving cell(s) for which channel state information is reported are determined based on the request for the aperiodic report. When a CQI/PMI/RI report and a HARQ ACK/NACK report coincide in a subframe, the HARQ ACK/NACK report is transmitted on PUCCH, and the CQI/PMI/RI report is transmitted on PUSCH. | 10-13-2011 |
20110299447 | RELIABILITY DETECTION OF CHANNEL QUALITY INDICATOR (CQI) AND APPLICATION TO OUTER LOOP POWER CONTROL - A method for determining a channel quality in wireless communications includes receiving a high speed shared control channel (HS-SICH) transmission. An expected number of HS-SICH transmissions and a number of unsuccessful HS-SICH transmissions are counted. The number of unsuccessful HS-SICH transmissions includes a number of failed HS-SICH transmissions and a number of missed HS-SICH transmissions. The expected number of HS-SICH transmissions and the number of unsuccessful HS-SICH transmissions over a fixed time period are periodically reported, whereby the reporting is an indication of the channel quality. | 12-08-2011 |
20110305139 | METHOD AND APPARATUS FOR DETERMINING AND MANAGING CONGESTION IN A WIRELESS COMMUNICATIONS SYSTEM - A method and apparatus may be used for network management via MAC measurements. The measurements may include WTRU uplink traffic loading measurement, and an AP service loading measurement. The measurements may be applicable to at least to layers | 12-15-2011 |
20120076049 | METHOD AND SYSTEM FOR PERFORMING PEER-TO-PEER COMMUNICATION BETWEEN STATIONS WITHIN A BASIC SERVICE SET - A method and system for performing peer-to-peer wireless communication between stations (STAs) within a basic service set (BSS) while maintaining connectivity with an access point (AP) in the BSS are disclosed. A source STA, an AP and a destination STA negotiate a direct link setup (DLS) channel for performing peer-to-peer communication between the source STA and the destination STA. The DLS channel may be different from a BSS channel used for communication between the AP and each of the STAs. The source STA and the destination STA then perform peer-to-peer communication on the negotiated DLS channel. | 03-29-2012 |
20120093134 | METHOD AND APPARATUS FOR EXCHANGING CONTROL OF A TRANSMISSION OPPORTUNITY - Methods and apparatus are disclosed. A method implemented in a wireless transmit/receive unit (WTRU) includes receiving a packet from a first other WTRU during a transmission opportunity (TxOP) associated with the first other WTRU and forwarding the packet to a second other WTRU during a remaining portion of the TxOP. | 04-19-2012 |
20120113831 | Determination of Carriers and Multiplexing for Uplink Control Information Transmission - Embodiments contemplate methods and devices that may select uplink (UL) transmission resources for transmitting uplink control information (UCI). A determination may be made that UCI should be transmitted. A physical channel resource for transmission of the UCI may be selected and a wireless transmit/receive unit (WRTU) may transmit the UCI over a physical uplink channel capable of supporting multiple component carriers using the selected physical channel resource. The selection of the physical channel resource may include at least one of: selecting a pre-determined UL component carrier (CC) for uplink transmission on a physical uplink control shared channel (PUSCH) upon a PUSCH resource being available in a subframe, or, selecting a pre-determined UL CC for uplink transmission on a physical uplink control channel (PUCCH) capable of UCI transmission in the subframe upon a PUSCH resource not being available in the subframe. | 05-10-2012 |
20120113843 | METHODS, APPARATUS AND SYSTEMS FOR APPLYING ALMOST BLANK SUBFRAME (ABS) PATTERNS - Methods, apparatus, and systems using almost blank subframes patterns are disclosed. Different ABS patterns and triggers are described for enabling a wireless transmit/receive unit (WTRU) to obtain ABS patterns. One representative method of scheduling operations by a wireless transmit/receive unit (WTRU) may include the WTRU receiving information indicating the ABS pattern with a plurality of ABS intervals of an interfering cell; determining timing associated with the ABS intervals of the interfering cell in accordance with the indicated ABS pattern; and scheduling a measurement opportunity, a transmission opportunity or a reception opportunity during the ABS intervals of the interfering cell. | 05-10-2012 |
20120140756 | METHOD AND SYSTEM FOR TRANSFERRING INFORMATION BETWEEN NETWORK MANAGEMENT ENTITIES OF A WIRELESS COMMUNICATION SYSTEM - A method and wireless communication system may be used for transferring management information. An access point (AP) may transmit a management information base (MIB) information request including a category field and an action details field to a wireless transmit/receive (WTRU). In response to receiving the information request, the WTRU may determine whether or not to provide management information to the AP. When the WTRU provides management information to the AP, the WTRU may compile management information stored in a MIB located in the WTRU and transmit a MIB information report to the AP. The MIB may list a plurality of tables containing information associated with radio resource management (RRM) and at least one table containing physical layer measurements. The AP may include a MIB for storing MIB information of the WTRU. The AP may transmit the stored MIB information of the WTRU in response to a request. | 06-07-2012 |
20120155439 | NEIGHBOR SCANNING IN WIRELESS LOCAL AREA NETWORKS - An access point includes a transmitter configured to transmit signals, a receiver configured to receive signals, and a timing information device. The timing information device is configured to receive a timing information request from a station associated to the access point, receive timing information for a beacon signal sent by a second access point, and report the timing information to the station, The timing information includes a time difference relative to a known reference time for transmission of the beacon signal and the time difference is an offset in timing units. | 06-21-2012 |
20120178407 | SUPPORTING EMERGENCY CALLS ON A WIRELESS LOCAL AREA NETWORK - A method and device may be used for selecting a network for initiating an emergency call. The network selection may be based on stored information and/or a network connection status. The stored information may include a network priority for placing the emergency call. | 07-12-2012 |
20120230268 | METHOD AND APPARATUS FOR SENDING UPLINK CONTROL INFORMATION FOR MULTI-RADIO ACCESS TECHNOLOGY OPERATION - A method and apparatus for sending uplink control information (UCI) by a multi-mode wireless transmit/receive unit (WTRU) capable of operating on multiple component carriers of a plurality of radio access technologies (RATs) for multi-RAT operation are disclosed. The multi-mode WTRU may generate UCI pertaining to a first RAT and send at least part of the UCI via a feedback channel on a component carrier of a second RAT. The first RAT may be Long Term Evolution (LTE) and the second RAT may be High Speed Packet Access (HSPA), or vice versa. The UCI of the RATs may be multiplexed onto a carrier of any one of the RATs. The UCI bits for a pair of, or multiple, serving cells may be jointly encoded. | 09-13-2012 |
20120231828 | DESYNCHRONIZED NETWORK ACCESS IN M2M NETWORKS - Systems, methods, and instrumentalities are disclosed to desynchronize transmissions in group-based operations. A group user equipment (UE), e.g., a UE that is a member of a group of UEs, may be in an inactive mode. The group UE may receive a multicast message indicating that the group UE may enter an active mode. For example, the group UE may use the active mode for periodic reporting of its monitoring activity to the network. The multicast message may indicate a mechanism for the group UE to use to send an uplink transmission to the network. The group UE may send the uplink transmission to the network at a transmission time indicated by the mechanism. The transmission time may be desynchronized from other UEs in the group. | 09-13-2012 |
20120236749 | METHOD AND SYSTEM FOR AUTONOMOUS CHANNEL COORDINATION FOR A WIRELESS DISTRIBUTION SYSTEM - A method and system for autonomous channel coordination for a wireless distribution system (WDS) are disclosed. A wireless communication system includes a plurality of access points (APs) and the APs communicate each other via a WDS. A coordinated channel group (CCG) of a plurality of member APs is established. The member APs of the CCG camp on a WDS channel used for the WDS among the member APs of the CCG. One AP among the member APs of the CCG is designated as a master AP. The master AP coordinates with other member APs of the CCG for selecting and configuring the WDS channel for the CCG and addition and deletion of member APs. By allowing APs to define a CCG, changes of the WDS channel are performed autonomously while maintaining connectivity. | 09-20-2012 |
20120236826 | METHOD AND SYSTEM FOR RESELECTING AN ACCESS POINT - A method for use in an access point includes receiving a request for a reselection message from a wireless transmit/receive unit (WTRU). The reselection message is generated in response to the request and includes: at least one first identifier of one or more candidate basic service sets (BSSs) that may be considered for reselection; a preference indicator associated with each candidate BSS, to indicate the BSS selection preference; an expiration time indicator associated with each candidate BSS, to indicate a time period that the BSS may be considered for reselection; an indication of a measurement to be taken on a BSS and used in a target BSS reselection determination; and a margin by which the measurement must exceed a corresponding value for a currently selected BSS. The reselection message is transmitted to the WTRU. A reselection response message is received from the WTRU, indicating the target BSS reselection determination. | 09-20-2012 |
20120250525 | RELIABILITY DETECTION OF CHANNEL QUALITY INDICATOR (CQI) AND APPLICATION TO OUTER LOOP POWER CONTROL - A method for performing outer loop power control in wireless communications is disclosed. A channel quality indicator (CQI) message is transmitted by a wireless transmit/receive unit (WTRU). The WTRU receives a power control command, the power control command being derived by: decoding the CQI message; computing a decision metric value for each symbol in the CQI message; determining whether the CQI message is erroneous; and counting a number of erroneous CQI messages, wherein the power control command is based on whether the number of erroneous CQI messages exceeds a threshold. An uplink transmission power of the WTRU is adjusted based on the power control command. | 10-04-2012 |
20120275353 | MOBILE COMMUNICATION SYSTEM AND METHOD FOR PROVIDING COMMON CHANNEL COVERAGE USING BEAMFORMING ANTENNAS - A wireless transmit/receive unit (WTRU) includes circuitry configured to receive information from a base station indicating an assignment of periodic time slots to transmit sounding signals and circuitry configured to transmit sounding signals to the base station in the assigned periodic time slots in response to the received information, wherein a timing of transmission of the sounding signals in response to the received information differs between a time division duplex mode and a frequency division duplex mode, and wherein the transmitted sounding signals are distinguishable from sounding signals from other WTRUs. | 11-01-2012 |
20120281634 | METHOD AND APPARATUS FOR STORING MOBILE STATION PHYSICAL MEASUREMENTS AND MAC PERFORMANCE STATISTICS IN A MANAGEMENT INFORMATION BASE OF AN ACCESS POINT - A method and apparatus may be used for exchanging measurements in wireless communications. The apparatus may receive a request. The request may be a measurement request, and may include a request for a measurement of a parameter. The apparatus may transmit a report. The report may be a measurement report, and may include the requested measurement of a parameter. The apparatus may store the requested measurement of the parameter in a management information base (MIB). | 11-08-2012 |
20120314628 | METHOD AND SYSTEM FOR TRANSFERRING WIRELESS TRANSMIT/RECEIVE UNIT-SPECIFIC INFORMATION - The present invention is related to a method and system for transferring wireless transmit/receive unit (WTRU)-specific information to support enhanced uplink (EU) operation in a wireless communication system. A radio network controller (RNC) obtains WTRU-specific information, and transfers the WTRU-specific information to the Node-Bs. Each Node-B is configured to schedule uplink transmissions from a WTRU and utilizes the WTRU-specific information in operation of EU transmissions. | 12-13-2012 |
20130003788 | COMMUNICATING CHANNEL STATE INFORMATION (CSI) OF MULTIPLE TRANSMISSION POINTS - Embodiments contemplate methods and systems for determining and communicating channel state information (CSI) for one or more transmission points (or CSI reference signal resources). Embodiments further contemplate determining transmission states may include applying at least one transmission state parameter to channel state information (CSI). Embodiments also contemplate reporting CSI based on the transmission state and/or at least one transmission state parameter applied thereto. | 01-03-2013 |
20130039210 | METHOD AND APPARATUS FOR INDICATING A TEMPORARY BLOCK FLOW TO WHICH A PIGGYBACKED ACK/NACK FIELD IS ADDRESSED - A method and an apparatus for indicating a temporary block flow (TBF) to which a piggybacked acknowledgement/non-acknowledgement (PAN) field is addressed. A method and apparatus of performing receive processing to reduce the probability of false acceptance of erroneous PANs are also disclosed. A transmit station generates a PAN check sequence (PCS) and performs a channel coding on a PAN field and the PCS. The transmit station scrambles the encoded bits of the PAN field and the PCS with a TBF-specific scrambling code. Because of the scrambling, the PCS decoding at a receive station will pass if the data block is received by an intended receive station, while the PCS decoding will fail if received by a non-intended receive station. Alternatively, the scrambling may be performed before the channel coding. Alternatively, the transmit station may combine the PAN field and a temporary flow identity (TFI) to generate a PCS. | 02-14-2013 |
20130039284 | SYSTEMS AND METHODS FOR AN ENHANCED CONTROL CHANNEL - Methods and systems for sending and receiving an enhanced downlink control channel are disclosed. The method may include receiving control channel information via an enhanced control channel. The method may also include using the control channel information to receive a shared channel. The method may include detecting the presence of the enhanced control channel in a given subframe. The enhanced control channel may be transmitted over multiple antenna ports. For example, code divisional multiplexing and de-multiplexing and the use of common and UE-specific reference signals may be utilized. New control channel elements may be defined, and enhanced control channel state information (CSI) feedback may be utilized. The presence or absence of legacy control channels may affect the demodulation and or decoding methods. The method may be implemented at a WTRU. | 02-14-2013 |
20130083753 | DEVICE COMMUNICATION USING A REDUCED CHANNEL BANDWIDTH - Systems and/or methods for supporting communications at a reduced bandwidth with a full bandwidth network such as a long-term evolution (LTE) network may be disclosed. For example, inband assignments such as downlink assignments and/or uplink grants may be provided and/or received and transmissions may be monitored and/or decoded based on the inband assignment. Additionally, information (e.g. a definition or configuration) associated with an ePDCCH may be provided and/or received and ePDCCH resources may be monitored and/or decoded based on such information. An indication for support of a reduced bandwidth by the full bandwidth network may also be provided and/or received and control channels in the reduced or narrow bandwidth may be monitored and/or decoded based on the indication. A PRACH preamble and/or a multi-type subframe definition may also be provided and/or used for support of such a reduced bandwidth. | 04-04-2013 |
20130142068 | METHOD AND SYSTEM FOR AUTONOMOUS CHANNEL COORDINATION FOR A WIRELESS DISTRIBUTION SYSTEM - A method and system for autonomous channel coordination for a wireless distribution system (WDS) are disclosed. A wireless communication system includes a plurality of access points (APs) and the APs communicate each other via a WDS. A coordinated channel group (CCG) of a plurality of member APs is established. The member APs of the CCG camp on a WDS channel used for the WDS among the member APs of the CCG. One AP among the member APs of the CCG is designated as a master AP. The master AP coordinates with other member APs of the CCG for selecting and configuring the WDS channel for the CCG and addition and deletion of member APs. By allowing APs to define a CCG, changes of the WDS channel are performed autonomously while maintaining connectivity. | 06-06-2013 |
20130148604 | WIRELESS MULTI-CELL COMMUNICATION SYSTEM AND METHOD FOR MANAGING RESOURCE POWER TO PROVIDE HIGH SPEED DOWNLINK PACKET ACCESS SERVICES - A method and wireless multi-cell communication system for providing high speed downlink packet access (HSDPA) services. The system includes a radio network controller (RNC) in communication with a plurality of base stations. The RNC sends a control signal to at least one base station having a plurality of timeslots, e.g., in a time division duplex (TDD) system and/or frames including transmission timing intervals (TTIs), e.g., in a frequency division duplex (FDD) system assigned thereto for the establishment of HSDPA channels. The control signal indicates a maximum allowed HSDPA transmit power for each of the timeslots and/or TTIs. The base station sends a feedback signal to the RNC indicating the results of measurements of the power of the transmitted HSDPA timeslots and/or TTIs during a predetermined time period. | 06-13-2013 |
20130176952 | Flexible Bandwidth Operation In Wireless Systems - Systems, methods, and instrumentalities are disclosed for downlink resource allocation associated with a shared frequency band. A WTRU may receive resource allocation information associated with a component carrier and at least one carrier segment. The component carrier and the least one carrier segment may each comprise a plurality of resource block groups (RBG). At least two bitmaps may be associated with the resource allocation information. A size of a resource block group (RBG) of the component carrier and the at least one carrier segment may be based on a combined number of resource blocks (RB) of the component carrier and the one or more carrier segments divided by a 3GPP Rel-8/Rel-10 RBG size of the component carrier. The WTRU may determine at least one RBG allocated to the WTRU using the resource allocation information and may receive and decode the at least one RBG allocated to the WTRU. | 07-11-2013 |
20130194931 | SYSTEMS AND/OR METHODS FOR PROVIDING EPDCCH IN A MULTIPLE CARRIER BASED AND/OR QUASI-COLLATED NETWORK - ePDCCH may be provided. For example, a WTRU may receive a configuration for monitoring an ePDCCH resource. Based on the configuration, the WTRU may be configured to monitor and may monitor the ePDCCH resource on a particular subframe. Additionally, a WTRU may derive an aggregation level for a subframe associated with an aggregation level number N | 08-01-2013 |
20130223316 | RELIABILITY DETECTION OF CHANNEL QUALITY INDICATOR (CQI) AND APPLICATION TO OUTER LOOP POWER CONTROL - A method for performing outer loop power control in wireless communications includes initializing a time interval clock to count down a predetermined time interval; receiving and decoding a channel quality indicator (CQI) message; computing a decision metric value for each symbol in the decoded CQI message; determining whether the CQI message is erroneous; counting a number of erroneous CQI messages; and signaling a wireless/transmit receive unit to adjust an uplink transmission power on a condition that the time interval clock has expired and the number of erroneous CQI messages exceeds a threshold. | 08-29-2013 |
20130242824 | METHOD FOR HALF-DUPLEX FDD OPERATION IN LTE FDD NETWORK - A method and apparatus for half-duplex (HD) frequency division duplex (FDD) (HD-FDD) operation are disclosed. The method in a wireless transmit/receive unit (WTRU) includes monitoring a first frequency for all downlink sub-frames for downlink communication except during a cell specific uplink frame, retuning to a second frequency and transmitting a scheduling request (SR) during a WTRU specific period of the cell specific uplink frame, wherein the WTRU specific period is based on a duty cycle, and retuning to the first frequency and receiving an uplink grant in a subsequent sub-frame. | 09-19-2013 |
20130250898 | METHOD AND SYSTEM FOR PERFORMING PEET-TO-PEER COMMUNICATION BETWEEN STATIONS WITHIN A BASIC SERVICE SET - A method and system for performing peer-to-peer wireless communication between stations (STAs) within a basic service set (BSS) while maintaining connectivity with an access point (AP) in the BSS are disclosed. A source STA, an AP and a destination STA negotiate a direct link setup (DLS) channel for performing peer-to-peer communication between the source STA and the destination STA. The DLS channel may be different from a BSS channel used for communication between the AP and each of the STAs. The source STA and the destination STA then perform peer-to-peer communication on the negotiated DLS channel. | 09-26-2013 |
20130301501 | METHODS AND APPARATUS FOR HANDLING MTC LONG DRX CYCLE/SLEEP LENGTHS - Current wireless networks do not allow machine type communication (MTC) devices to have long discontinuous reception (DRX) cycles or sleep lengths. A long DRX cycle may allow MTC systems and devices to operate with much longer DRX/Sleep cycles/periods. This may facilitate the MTC operations for infrequent system access or infrequent system reaching (e.g. paged once in a week) with no or low mobility and may allow MTC devices to sleep for a long time with low power consumption. | 11-14-2013 |
20130322376 | COMMUNICATING CHANNEL STATE INFORMATION (CSI) OF MULTIPLE TRANSMISSION POINTS - Embodiments contemplate methods and systems for determining and communicating channel state information (CSI) for one or more transmission points (or CSI reference signal resources). Embodiments further contemplate determining transmission states may include applying at least one CSI process for channel state information (CSI) reporting. Embodiments also contemplate aperiodic and/or periodic reporting of one or more report types (e.g., rank indicator (RI)) of CSI, perhaps based on one or more reporting modes that may be configured for each of the one or more CSI process. | 12-05-2013 |
20130324182 | DEVICE-TO-DEVICE (D2D) CROSS LINK POWER CONTROL - Device-to-device (D2D) cross link power control systems and methods may be disclosed. For example, a device such as a UE or WTRU may determine whether it may have simultaneous transmissions where at least one of the transmissions may include a cross link transmission. The device may further determine whether a total transmit power of the simultaneous transmissions may exceed a maximum transmit power of the device. If the device may have simultaneous transmissions and such transmissions may exceed the maximum transmit power, the device may reallocate power based on a priority or priority setting. The device may further determine a maximum cross link power, a maximum device power, and a cross link transmit power level such that the device may further control the power for transmissions based thereon. | 12-05-2013 |
20130326320 | METHOD AND APPARATUS FOR INDICATING A TEMPORARY BLOCK FLOW TO WHICH A PIGGYBACKED ACK/NACK FIELD IS ADDRESSED - A method and an apparatus for indicating a temporary block flow (TBF) to which a piggybacked acknowledgement/non-acknowledgement (PAN) field is addressed. A method and apparatus of performing receive processing to reduce the probability of false acceptance of erroneous PANs are also disclosed. A transmit station generates a PAN check sequence (PCS) and performs a channel coding on a PAN field and the PCS. The transmit station scrambles the encoded bits of the PAN field and the PCS with a TBF-specific scrambling code. Because of the scrambling, the PCS decoding at a receive station will pass if the data block is received by an intended receive station, while the PCS decoding will fail if received by a non-intended receive station. Alternatively, the scrambling may be performed before the channel coding. Alternatively, the transmit station may combine the PAN field and a temporary flow identity (TFI) to generate a PCS. | 12-05-2013 |
20140022947 | HIGH-THROUGHPUT CHANNEL OPERATION IN A MESH WIRELESS LOCAL AREA NETWORK - High throughput channel operation in a mesh wireless local area network (WLAN) is disclosed. A mesh network comprises a plurality of mesh points and a network management entity (NME). The NME is configured to retrieve capability and configuration data from the mesh points. The NME configures at least one mesh point with respect to IEEE 802.11n channelization and legacy protection mode based on the capability and configuration data. | 01-23-2014 |
20140031031 | ADAPTIVE CONTROL CHANNEL - A wireless network may implement a reduced bandwidth for control information transmitted and/or received on the wireless network. The reduced bandwidth may be used to avoid interference that may be detected from an in-band or adjacent channel. The reduced bandwidth may be used for transmission and/or reception of control information on a cellular or Wi-Fi channel. An eNB or an access point (AP) may signal to a wireless transmit/receive unit (WTRU) information associated with the reduced control channel, such as the power and/or the location of the channel in a frequency band. The control channel may be shifted to avoid a change in interference. | 01-30-2014 |
20140056255 | METHOD AND APPARATUS FOR INDICATING A TEMPORARY BLOCK FLOW TO WHICH A PIGGYBACKED ACK/NACK FIELD IS ADDRESSED - Methods and apparatus are described. A wireless transmit/receive unit (WTRU) generates a piggybacked acknowledgement/non-acknowledgement (PAN) field and a PAN check sequence (PCS) from the PAN field. The WTRU masks the PCS with a temporary flow identity (TFI) that includes a specific sequence of a plurality of bit values that represents information other than an identification of a particular TBF. The WTRU transmits data that includes the PAN field and the masked PCS. | 02-27-2014 |
20140064191 | METHOD AND APPARATUS FOR RELIABLY TRANSMITTING RADIO BLOCKS WITH PIGGYBACKED ACK/NACK FIELDS - A method and apparatus are described. A wireless transmit/receive unit (WTRU) generates data bits and piggybacked acknowledgement/non-acknowledgement (PAN) bits and generates a plurality of symbols based on the data bits and the PAN bits. Each symbol of the plurality of symbols represents a plurality of bits and has a least significant bit (LSB) position, and no PAN bits are present in the LSB position of each of the plurality of symbols. The plurality of symbols are transmitted. | 03-06-2014 |
20140086112 | METHODS FOR DYNAMIC TDD UPLINK/DOWNLINK CONFIGURATION - A method and apparatus for Time Division Duplex (TDD) operation in a wireless transmit/receive unit (WTRU) are disclosed. The method includes receiving a first TDD uplink (UL)/downlink (DL) configuration for a serving cell, receiving a second TDD UL/DL configuration for the serving cell, receiving an indication of directions to use for subframes with conflicting directions between the first TDD UL/DL configuration and the second TDD UL/DL configuration, using the first TDD UL/DL configuration for timing of UL scheduling and UL Hybrid Automatic Repeat Request (HARQ), using the second TDD UL/DL configuration for timing of DL scheduling and DL HARQ, and determining a direction for each subframe with conflicting directions based on the received indication, wherein on a condition that the determined direction for a subframe with conflicting directions is DL, receiving in the subframe in the DL. | 03-27-2014 |
20140098761 | METHOD AND APPARATUS FOR ENHANCING COVERAGE OF MACHINE TYPE COMMUNICATION (MTC) DEVICES - A method and apparatus are described for a low cost machine-type-communication (LC-MTC) wireless transmit/receive unit (WTRU) to enhance coverage. An example method for physical broadcast channel (PBCH) enhancement includes receiving system information on an enhanced PBCH (ePBCH). The ePBCH is located in a set of radio frames which is a subset of available radio frames, where the subset includes fewer than all the available radio frames. The ePBCH is received in at least one radio frame of the set of radio frames. An example method for physical random access channel (PRACH) enhancement includes receiving configuration of legacy PRACH resources and enhanced PRACH (ePRACH) resources. The WTRU selects one of legacy PRACH resources or ePRACH resources based on a coverage capability. Another example method for PRACH enhancement includes receiving configuration of ePRACH resources. The ePRACH resources include multiple ePRACH resource types, each ePRACH resource type being associated with a coverage capability. | 04-10-2014 |
20140098769 | METHOD AND APPARATUS FOR INDICTATING A TEMPORARY BLOCK FLOW TO WHICH A PIGGYBACKED ACKNOWLEDGEMENT/NON-ACKNOWLEDGEMENT FIELD IS ADDRESSED - Methods and base stations are described. A base station includes a receiver, a processor and a transmitter. The receiver receives a first data block associated with an uplink temporary block flow (TBF), and the first data block includes a first header that includes a temporary flow identity (TFI) that identifies the uplink TBF. The processor generate a piggybacked acknowledgement/non-acknowledgement (PAN) field corresponding to the uplink TBF and a PAN check sequence (PCS) based on the PAN field, masks a subset of PCS bits with the TFI to generate a masked PCS, and generates a second data block, associated with a downlink TBF, that includes a second header, a data part corresponding to the downlink TBF, the PAN field, and the masked PCS. The transmitter transmits the second data block. | 04-10-2014 |
20140169305 | METHOD AND SYSTEM FOR TRANSFERRING WIRELESS TRANSMIT/RECEIVE UNIT-SPECIFIC INFORMATION - The present invention is related to a method and system for transferring wireless transmit/receive unit (WTRU)-specific information to support enhanced uplink (EU) operation in a wireless communication system. A radio network controller (RNC) obtains WTRU-specific information, and transfers the WTRU-specific information to the Node-Bs. Each Node-B is configured to schedule uplink transmissions from a WTRU and utilizes the WTRU-specific information in operation of EU transmissions. | 06-19-2014 |
20140179328 | CONTROL CHANNEL SIGNALING AND ACQUISITION FOR CARRIER AGGREGATION - A method and apparatus for handling a control channel for carrier aggregation in wireless communications. The method includes determining which component carrier to listen to, detecting the downlink control channel, processing mapping information related to downlink and uplink transmissions and operating discontinuous reception with respect to carrier aggregation. The method also includes detecting a component carrier, determining the component carrier type and locating the anchor component carrier, if necessary, where the anchor component carrier carries the carrier aggregation information. | 06-26-2014 |
20140204932 | SUPPORTING EMERGENCY CALLS ON A WIRELESS LOCAL AREA NETWORK - Several methods are provided for communicating emergency call capability information between a station and an access point (AP) in a wireless local area network. The methods include advertising by the AP of its emergency call capabilities and announcing by the station of its emergency call capabilities. The AP can advertise its emergency call capabilities in a beacon frame, a probe response frame, a reassociation response frame, or a reauthentication response frame. The station can announce its emergency call capabilities in an association request frame, a reassociation request frame, an authentication request frame, or a reauthentication request frame. | 07-24-2014 |
20140204933 | NEIGHBOR SCANNING IN WIRELESS LOCAL AREA NETWORKS - An access point includes a transmitter configured to transmit signals, a receiver configured to receive signals, and a timing information device. The timing information device is configured to receive a timing information request from a station associated to the access point, receive timing information for a beacon signal sent by a second access point, and report the timing information to the station. The timing information includes a time difference relative to a known reference time for transmission of the beacon signal and the time difference is an offset in timing units. | 07-24-2014 |
20140219221 | POWER CONTROL FOR COMMUNICATIONS SYSTEMS UTILIZING HIGH SPEED SHARED CHANNELS - A method and apparatus are described for controlling transmitter power in a wireless communication system in which both dedicated and shared channels are utilized. A wireless transmit/receive unit (WTRU) may receive a first channel (e.g., downlink shared channel), power commands for a second channel (e.g., dedicated channel) and power commands for a third channel (e.g., uplink shared channel). The WTRU may transmit in a transmission time interval at least one of the second channel and the third channel. Acknowledgments and negative acknowledgements to signals received over the first channel may be sent on the third channel. The WTRU may determine a transmission power level of the second channel in response to the second channel power commands and not the third channel power commands. The WTRU may determine a transmission power level of the third channel in response to the third channel power commands and not the second channel power commands. | 08-07-2014 |
20140233396 | METHOD AND APPARATUS FOR MONITORING FOR A RADIO LINK FAILURE - Methods and apparatus are described for monitoring for a radio link failure in a long term evolution-advanced (LTE-A) system operated with carrier aggregation. The methods include criteria for determining radio link failure, recovery events, and the actions that a wireless transmit/receive unit (WTRU) may take upon the occurrence of such events. | 08-21-2014 |
20140241221 | METHOD FOR CHANNEL ASSIGNMENTS IN WIRELESS SYSTEMS - A wireless transmit/receive unit (WTRU) includes circuitry configured to receive first information from a wireless network, the first information indicating a first pattern of time intervals in which the WTRU is to monitor a plurality of control channels; not monitor the plurality of control channels in time intervals outside the first pattern of time intervals; and receive second information from the wireless network, the second information indicating a second pattern of time intervals in which the WTRU is to transmit control information on a control channel. | 08-28-2014 |
20140254572 | METHOD AND APPARATUS FOR MANAGING WIRELESS COMMUNICATION NETWORK RADIO RESOURCES - A method and apparatus for managing radio resources in one or more wireless communication networks. At least one radio resource manager (RRM) is provided within a network node, or as an independent entity. The RRM monitors performance on wireless communication links of the network(s) and interacts with nodes associated with those links to change the configuration on a particular wireless communication link if its performance (i.e., quality) falls below an established threshold. Information regarding current resource usage of the network is sent to the RRM by the nodes. Each of the nodes may send a quality report to the RRM including wireless communication link quality measurements and performance statistics. Alternatively, the RRM may perform the wireless communication link quality measurements. The RRM facilitates the broadcasting of information regarding current resource usage of one network to other networks to avoid collisions and interference. | 09-11-2014 |
20140293876 | METHOD AND APPARATUS FOR STORING MOBILE STATION PHYSICAL MEASUREMENTS AND MAC PERFORMANCE STATISTICS IN A MANAGEMENT INFORMATION BASE OF AN ACCESS POINT - A method and apparatus may be used for exchanging measurements in wireless communications. The apparatus may receive a request. The request may be a measurement request, and may include a request for a measurement of a parameter. The apparatus may transmit a report. The report may be a measurement report, and may include the requested measurement of a parameter. The apparatus may store the requested measurement of the parameter in a management information base (MIB). | 10-02-2014 |
20140321391 | METHOD AND APPARATUS FOR CONTENTION-BASED UPLINK DATA TRANSMISSION - A method and apparatus for a wireless transmit receive unit (WTRU) to use a contention-based uplink communications channel, applies a rule-based restriction of access to the contention-based uplink channel that attempts to use at least one contention-free uplink channel allocation for uplink transmissions on a condition that at least one contention-free uplink channel allocation has been granted. | 10-30-2014 |
20140362832 | SYSTEMS AND METHODS FOR IMPROVED UPLINK COVERAGE - Systems and method are specified to improve the reception of UL transmission, for example in power or coverage limited situations. A WTRU may modify procedures to increase the available signal energy for reception at an eNB and/or to make more efficient use of the available signal energy at the receiver for processing UL transmissions. Example methods for increasing UL link coverage may include modifying HARQ timing (e.g., shorter HARQ), using longer TTIs, use of dedicated PUSCH allocations, use of new PUSCH modulations, enhanced reference signal design, UL macro diversity reception for PUSCH, utilizing protocol reduction techniques, ensuring in-order packet delivery, and/or utilizing a configuration for coverage limited/power limited modes of operation. The proposed methods may be applied individually or in any combination. | 12-11-2014 |
20150029911 | MOBILE COMMUNICATION SYSTEM AND METHOD FOR PROVIDING COMMON CHANNEL COVERAGE USING BEAMFORMING ANTENNAS - A wireless transmit/receive unit (WTRU) includes circuitry configured to receive information from a base station indicating an assignment of periodic time slots to transmit sounding signals and circuitry configured to transmit sounding signals to the base station in the assigned periodic time slots in response to the received information, wherein a timing of transmission of the sounding signals in response to the received information differs between a time division duplex mode and a frequency division duplex mode, and wherein the transmitted sounding signals are distinguishable from sounding signals from other WTRUs. | 01-29-2015 |
20150029990 | METHOD AND APPARATUS FOR SENDING UPLINK CONTROL INFORMATION FOR MULTI-RADIO ACCESS TECHNOLOGY OPERATION - A method and apparatus for sending uplink control information (UCI) by a multi-mode wireless transmit/receive unit (WTRU) capable of operating on multiple component carriers of a plurality of radio access technologies (RATs) for multi-RAT operation are disclosed. The multi-mode WTRU may generate first UCI pertaining to a first RAT and second UCI pertaining to a second RAT. The WTRU may then send at least part of the first UCI and least part of the second UCI via a feedback channel on a component carrier of a second RAT. The first RAT may be Long Term Evolution (LTE) and the second RAT may be LTE-Advanced (LTE-A), or vice versa. Each RAT may operate on a different frequency. The UCI of the RATs may be multiplexed onto a carrier of any one of the RATs. The UCI bits for a pair of, or multiple, serving cells may be jointly encoded. | 01-29-2015 |
20150036645 | FLEXIBLE BANDWIDTH OPERATION IN WIRELESS SYSTEMS - Systems, methods, and instrumentalities are disclosed for downlink resource allocation associated with a shared frequency band. A WTRU may receive resource allocation information associated with a component carrier and at least one carrier segment. The component carrier and the least one carrier segment may each comprise a plurality of resource block groups (RBG). At least two bitmaps may be associated with the resource allocation information. A size of a resource block group (RBG) of the component carrier and the at least one carrier segment may be based on a combined number of resource blocks (RB) of the component carrier and the one or more carrier segments divided by a 3GPP Rel-8/Rel-10 RBG size of the component carrier. The WTRU may determine at least one RBG allocated to the WTRU using the resource allocation information and may receive and decode the at least one RBG allocated to the WTRU. | 02-05-2015 |