| Patent application number | Description | Published |
|---|
| 20100158147 | UPLINK POWER HEADROOM REPORTING FOR CARRIER AGGREGATION - A method for reporting power headroom is disclosed. Power headroom may be reported across all carriers (wideband), for a specific carrier, or for a carrier group. The formula used to calculate the power headroom depends on whether the carrier (or a carrier in the carrier group) has a valid uplink grant. If the carrier or carrier group does not have a valid uplink grant, the power headroom may be calculated based on a reference grant. The power headroom is calculated by a wireless transmit/receive unit and is reported to an eNodeB. | 06-24-2010 |
| 20100222060 | ANCHOR CARRIER RESELECTION AND CELL RESELECTION IN LONG TERM EVOLUTION-ADVANCED - A method and apparatus for performing anchor carrier reselection measurements and ranking in Long Term Evolution-Advanced are disclosed. The measurements are first determined by whether a non-serving anchor carrier has a higher reselection priority than a serving anchor carrier. Other non-serving anchor carrier measurements are started by checking the serving anchor measured results against non-serving anchor carrier measurement thresholds, including the parameter S-IntraCellSearch for measuring and ranking the intra-cell anchor carriers ahead of other non-serving anchor carriers. | 09-02-2010 |
| 20100234037 | METHOD AND APPARATUS FOR CARRIER ASSIGNMENT, CONFIGURATION AND SWITCHING FOR MULTICARRIER WIRELESS COMMUNICATIONS - As part of carrier assignment and configuration for multicarrier wireless communications, a single uplink (UL) primary carrier may provide control information for multiple concurrent downlink (DL) carriers. Optionally, control information for each DL carrier may be transmitted over paired UL carriers. Carrier switching of UL and/or DL carriers, including primary and anchor carriers, may occur during normal operation or during handover, and may occur in only the UL or only the DL direction. A unidirectional handover is performed when only an UL carrier or only a DL carrier is switched as part of a handover. Switching of UL and/or DL carriers may be from one component carrier or a subset of carriers to another component carrier, another subset of carriers, or all carriers in the same direction. | 09-16-2010 |
| 20100296467 | METHOD AND APPARATUS FOR RANDOM ACCESS IN MULTICARRIER WIRELESS COMMUNICATIONS - Methods and apparatus for random access in multicarrier wireless communications are disclosed. Methods and apparatus are provided for physical random access channel (PRACH) resource signaling, PRACH resource handling, preamble and PRACH resource selection, random access response (RAR) reception, preamble retransmission, and transmission and reception of subsequent messages. A method for maintaining an allowed multicarrier uplink (UL) random access channel (RACH) configuration set by adding an UL carrier to the allowed RACH configuration set provided that a triggering event occurs and performing a random access (RA) procedure using the allowed RACH configuration set. A method for sending data in multicarrier wireless communications by determining a set of available UL carriers and selecting an UL carrier from the set of available UL carriers. | 11-25-2010 |
| 20110002281 | DISCONTINUOUS RECEPTION FOR CARRIER AGGREGATION - Discontinuous reception (DRX) operations for wireless communications implementing carrier aggregation are disclosed. Physical downlink control channel implementation for carrier aggregation is also disclosed. DRX methods are disclosed including a common DRX protocol that may be applied across all component carriers, an individual/independent DRX protocol that is applied on each component carrier, and hybrid approaches that are applied across affected component carriers. Methods for addressing the effects of loss of synchronization on DRX, impact of scheduling request on DRX, uplink power control during DRX, and DRX operation in measurement gaps are disclosed. | 01-06-2011 |
| 20120093110 | RADIO LINK CONTROL RESET USING RADIO RESOURCE CONTROL SIGNALING - A method and apparatus are described for implementing a reset procedure for radio link control (RLC) using radio resource control (RRC) signaling. A wireless transmit/receive unit (WTRU) receives a request for RLC reset. A processor at the WTRU comprises a RRC entity and a RLC entity. The RRC entity receives the request for a RLC reset in a radio resource control message. The RLC entity reassembles RLC service data units (SDUs) from any protocol data units (PDUs) that are received out of sequence at a receiving side of the RLC entity. The reassembled SDUs are delivered in sequence to a packet data convergence protocol entity (PDCP). At the receiving side of the RLC entity, any remaining PDUs that are not able to be reassembled are discarded. At a transmitting side of the RLC entity, all SDUs and PDUs stored in transmit buffers are discarded. | 04-19-2012 |
| 20120173946 | METHOD AND SYSTEM FOR SUPPORTING MULTIPLE HYBRID AUTOMATIC REPEAT REQUEST PROCESSES PER TRANSMISSION TIME INTERVAL - A method and apparatus may be used for supporting multiple hybrid automatic repeat request (H-ARQ) processes per transmission time interval (TTI). A transmitter and a receiver may include a plurality of H-ARQ processes. Each H-ARQ process may transmit and receive one TB per TTI. The transmitter may generate a plurality of TBs and assign each TB to a H-ARQ process. The transmitter may send control information for each TB, which may include H-ARQ information associated TBs with the TBs. The transmitter may send the TBs using the associated H-ARQ processes simultaneously per TTI. After receiving the TBs, the receiver may send feedback for each of the H-ARQ processes and associated TBs indicating successful or unsuccessful receipt of each of the TBs to the transmitter. The feedback for multiple TBs may be combined for the simultaneously transmitted H-ARQ processes, (i.e., TBs). | 07-05-2012 |
| 20120176993 | RESOURCE ALLOCATION, SCHEDULING, AND SIGNALING FOR GROUPING REAL TIME SERVICES - The present invention is a method and apparatus for resource allocation signaling for grouping user real time services. Uplink signaling for voice activity reporting of each user's transition between an active state and an inactive voice state is sent from a wireless transmit/receive unit to a Node B. Radio resource allocation to users of a wireless communication system varies based on user measurement reporting, a pre-determined pattern such as frequency hopping, or a pseudorandom function. Grouping methods are adjusted to better utilize the voice activity factor, so that statistical multiplexing can be used to more efficiently utilize physical resources. | 07-12-2012 |
| 20120195221 | METHOD AND APPARATUS OF RESOURCE MANAGEMENT FOR MULTIMEDIA BROADCAST MULTICAST SERVICES - A method and apparatus of resource management for multimedia broadcast multicast services (MBMS) are disclosed. A wireless transmit/receive unit (WTRU) sends a measurement report and an MBMS reception performance report to a network. Single frequency network (SFN) area change may be made based on cell reselection information, WTRU macro-diversity MBMS reception performance, neighbor cell signal strength reported by a WTRU, interference level measured by the WTRU, a number of WTRUs in a cell, service priority, WTRU class, WTRU mobility trend, WTRU location to a cell center, WTRU MBMS reception interference level, etc. The MBMS service on/off decision and/or point-to-point (PTP) to point-to-multipoint (PTM) switching may be made based on a channel condition of a WTRU. The channel condition may be determined based on whether the WTRU is in in-sync or out-of-sync in MBMS reception, consecutive negative acknowledgements (NAKs) within a certain time window, measured pathloss from a reference channel, etc. | 08-02-2012 |
| 20120263088 | IMPLICIT DRX CYCLE LENGTH ADJUSTMENT CONTROL IN LTE_ACTIVE MODE - A method for controlling discontinuous reception in a wireless transmit/receive unit includes defining a plurality of DRX levels, wherein each DRX level includes a respective DRX cycle length and transitioning between DRX levels based on a set of criteria. The transitioning may be triggered by implicit rules. | 10-18-2012 |
| 20120307724 | RADIO LINK FAILURE DETECTION PROCEDURES IN LONG TERM EVOLUTION UPLINK AND DOWNLINK AND APPARATUS THEREFOR - A method and apparatus for detecting a radio link (RL) failure for uplink (UL) and downlink (DL) in a long term evolution (LTE) wireless communication system including at least one wireless transmit/receive unit (WTRU) and at least one evolved Node-B (eNodeB) are disclosed. A determination is made as to whether an RL has an in-synchronization status or an out-of-synchronization status. An RL failure is declared if an out-of-synchronization status is detected. | 12-06-2012 |
| 20130023269 | METHODS AND SYSTEM FOR PERFORMING HANDOVER IN A WIRELESS COMMUNICATION SYSTEM - A method and system for performing handover in a third generation (3G) long term evolution (LTE) system are disclosed. A source evolved Node-B (eNode-B) makes a handover decision based on measurements and sends a handover request to a target eNode-B. The target eNode-B sends a handover response to the source eNode-B indicating that a handover should commence. The source eNode-B then sends a handover command to a wireless transmit/receive unit (WTRU). The handover command includes at least one of reconfiguration information, information regarding timing adjustment, relative timing difference between the source eNode-B and the target eNode-B, information regarding an initial scheduling procedure at the target eNode-B, and measurement information for the target eNode-B. The WTRU then accesses the target eNode-B and exchanges layer 1/2 signaling to perform downlink synchronization, timing adjustment, and uplink and downlink resource assignment based on information included in the handover command. | 01-24-2013 |
| 20130028231 | UPLINK POWER HEADROOM REPORTING FOR CARRIER AGGREGATION - A method for reporting power headroom is disclosed. Power headroom may be reported across all carriers (wideband), for a specific carrier, or for a carrier group. The formula used to calculate the power headroom depends on whether the carrier (or a carrier in the carrier group) has a valid uplink grant. If the carrier or carrier group does not have a valid uplink grant, the power headroom may be calculated based on a reference grant. The power headroom is calculated by a wireless transmit/receive unit and is reported to an eNodeB. | 01-31-2013 |
| 20130058287 | METHOD AND APPARATUS FOR SIGNALING THE RELEASE OF A PERSISTENT RESOURCE - A method and apparatus for signaling the release of a persistent resource in long term evolution (LTE) are disclosed. An indication of the release of a downlink (DL) persistent resource is received by a wireless transmit receive unit (WTRU) from an evolved Node-B (eNB) via a physical downlink control channel (PDCCH). A positive acknowledgement (ACK) is transmitted by the WTRU which denotes that the indication has been received. The PDCCH or a medium access control (MAC) CE may be used by the eNB to signal the indication. At least one bit may be added to contents of the PDCCH to signal whether the PDCCH is for DL persistent or dynamic resource allocation. The DL persistent resource is then released and an indication that the DL persistent resource has been released is transmitted. | 03-07-2013 |
| 20130064224 | METHOD AND APPARATUS FOR PERFORMING A HANDOVER IN AN EVOLVED UNIVERSAL TERRESTRIAL RADIO ACCESS NETWORK - A method and an apparatus for performing a handover in an evolved universal terrestrial radio access network (E-UTRAN) are disclosed. A wireless transmit/receive unit (WTRU) sends a measurement report to a source evolved Node B (eNB), and receives a handover command from the source eNB. The WTRU initiates reception and processing of a primary broadcast channel (P-BCH) at the target cell after receiving the handover command. The WTRU then sends a random access preamble to the target eNB, receives a random access response from the target eNB, and sends a handover complete message to the target eNB. The reception and processing of the P-BCH may be initiated immediately after receiving the handover command or after sending the handover complete message. The WTRU may apply default configuration or source cell configuration in the target cell until a target cell SFN and/or P-BCH information are acquired. | 03-14-2013 |
| 20130072161 | WIRELESS COMMUNICATION METHOD AND APPARATUS FOR PERFORMING HOME NODE-B IDENTIFICATION AND ACCESS RESTRICTION - A method and a wireless transmit/receive unit (WTRU), including a universal subscriber identity module (USIM), for identifying a closed subscriber group (CSG) cell are disclosed. The WTRU receives a broadcast from a cell including a cell identifier (ID). If the cell ID is associated with a CSG cell, the WTRU determines whether the CSG ID is programmed in the USIM. The cell broadcast may include a single bit information element (IE) indicating that the cell is a CSG cell. If the cell ID is a CSG ID, the cell ID may further include a plurality of fields which indicate at least one of a country, a region, an operator, and a home evolved Node-B (HeNB) number. The cell broadcast may further include a bit indicating whether the CSG cell is public or private. The cell broadcast may further include a bit indicating that emergency calls are allowed from all users. | 03-21-2013 |
| 20130121288 | METHOD AND APPARATUS FOR EFFICIENTLY UTILIZING HARQ PROCESSES FOR SEMI-PERSISTENT AND DYNAMIC DATA TRANSMISSIONS - A method and apparatus are disclosed for efficient hybrid automatic repeat request (HARQ) process utilization for semi-persistent and dynamic data transmissions, wherein a reserved HARQ process identification (ID) can be reused. A subset of a plurality of HARQ process IDs is reserved to use for a semi-persistent allocation, and data is transmitted based on the semi-persistent allocation. A dynamic allocation is received via a physical downlink control channel (PDCCH). At least one of the reserved HARQ process IDs is selectively used for transmitting data based on the dynamic allocation. | 05-16-2013 |
| 20130121289 | METHOD AND SYSTEM FOR SUPPORTING MULTIPLE HYBRID AUTOMATIC REPEAT REQUEST PROCESSES PER TRANSMISSION TIME INTERVAL - A method and apparatus may be used for supporting multiple hybrid automatic repeat request (H-ARQ) processes per transmission time interval (TTI). A transmitter and a receiver may include a plurality of H-ARQ processes. Each H-ARQ process may transmit and receive one TB per TTI. The transmitter may generate a plurality of TBs and assign each TB to a H-ARQ process. The transmitter may send control information for each TB, which may include H-ARQ information associated TBs with the TBs. The transmitter may send the TBs using the associated H-ARQ processes simultaneously per TTI. After receiving the TBs, the receiver may send feedback for each of the H-ARQ processes and associated TBs indicating successful or unsuccessful receipt of each of the TBs to the transmitter. The feedback for multiple TBs may be combined for the simultaneously transmitted H-ARQ processes, (i.e., TBs). When MIMO is implemented, one H-ARQ process may be associated with one MIMO stream, or codeword. The feedback may include a channel quality indicator (CQI) per MIMO stream or codeword. The control information and the feedback may be sent via a layer 1 or layer 2/3 control part. | 05-16-2013 |
| 20130148521 | METHOD AND APPARATUS FOR ENHANCING DISCONTINUOUS RECEPTION IN WIRELESS SYSTEMS - A method of discontinuous reception (DRX) in a wireless transmit receive unit (WTRU) includes the WTRU receiving DRX setting information over a radio resource control (RRC) signal, and the WTRU receiving DRX activation information over medium access control (MAC) signal. | 06-13-2013 |
| 20130170355 | METHOD AND APPARATUS FOR SUPPORTING UPLINK STARVATION AVOIDANCE IN A LONG TERM EVOLUTION SYSTEM - A method and apparatus for uplink (UL) starvation avoidance includes determining a current buffer status information. The current buffer status information is reported to an evolved Node B (eNB). A grant that includes a determination of a number of tokens a wireless transmit/receive unit (WTRU) may accumulate is received from the eNB. | 07-04-2013 |
| 20130223311 | COORDINATED UPLINK TRANSMISSION IN LTE DRX OPERATIONS FOR A WIRELESS TRANSMIT RECEIVE UNIT - A method and apparatus for discontinuous reception (DRX) operation in a wireless transmit receive unit aligns uplink and downlink transmissions with a DRX cycle. The transmission may be a channel quality indicator report, a sounding reference signal, or a silence descriptor among other downlink and uplink transmissions. | 08-29-2013 |
| 20130242914 | METHOD AND APPARATUS FOR SELECTING MULTIPLE TRANSPORT FORMATS AND TRANSMITTING MULTIPLE TRANSPORT BLOCKS SIMULTANEOUSLY WITH MULTIPLE H-ARQ PROCESSES - A method and apparatus for selecting multiple transport formats and transmitting multiple transport blocks (TBs) in a transmission time interval simultaneously with multiple hybrid automatic repeat request (H-ARQ) processes in a wireless communication system are disclosed. Available physical resources and H-ARQ processes associated with the available physical resources are identified and channel quality of each of the available physical resources is determined. Quality of service (QoS) requirements of higher layer data to be transmitted are determined. The higher layer data is mapped to at least two H-ARQ processes. Physical transmission and H-ARQ configurations to support QoS requirements of the higher layer data mapped to each H-ARQ process are determined. TBs are generated from the mapped higher layer data in accordance with the physical transmission and H-ARQ configurations of each H-ARQ process, respectively. The TBs are transmitted via the H-ARQ processes simultaneously. | 09-19-2013 |
| 20130265923 | BEHAVIOR FOR WIRELESS TRANSMIT/RECEIVE UNIT AND MAC CONTROL ELEMENTS FOR LTE DRX OPERATIONS - A wireless transmit/receive unit (WTRU) stops discontinuous reception (DRX) timers that are running and that are related to uplink and/or downlink transmissions during a DRX time period. The WTRU stops the DRX timers in response to receiving a medium access control (MAC) control element signal from an eNode-B. | 10-10-2013 |
| 20130288682 | BALANCING PAGING LOAD AND TRACKING AREA UPDATES - A method for assigning a tracking area (TA) is disclosed. A mobility state of a wireless transmit/receive unit (WTRU) is determined and the TA is assigned based on the determined mobility state. Also disclosed is a method for accessing a closed subscriber group (CSG) TA. A CSG TA identifier is received at a WTRU and is stored. A CSG TA broadcast is received and the broadcast CSG TA is accessed if an identifier of the broadcast CSG TA matches the stored CSG TA identifier. Also disclosed is a method for changing a mobility state of a WTRU. A current mobility state of the WTRU is determined and a predetermined metric of the WTRU is examined. The predetermined metric is evaluated to determine if the metric has crossed a threshold and the mobility state is changed based on the evaluated metric. | 10-31-2013 |
| 20140010136 | SYSTEM LEVEL INFORMATION FOR DISCONTINUOUS RECEPTION, CELL RESELECTION AND RACH - A wireless transmit/receive unit is configured to receive system level information, including discontinuous reception (DRX) information, cell selection information, and RACH information. The system level information is received as defined parameters assigned to system information blocks or signaled through dedicated RRC signaling. | 01-09-2014 |
| 20140036886 | RESOURCE ALLOCATION AND SIGNALINGS FOR GROUP SCHEDULING IN WIRELESS COMMUNICATIONS - Method and apparatus for resource allocation formatting, signaling, and procedures in wireless communications, the method reducing signal overhead. Wireless transmit/receive units are divided into one or more semi-static groups. Resource allocation takes place to a group and the resource sets are signaled to an individual unit needing the resources. The method is applied to resource allocation for services, including both real time and non real time services. | 02-06-2014 |
| 20140044078 | METHOD AND APPARATUS FOR PROVIDING AND UTILIZING A NON-CONTENTION BASED CHANNEL IN A WIRELESS COMMUNICATION SYSTEM - In a wireless communication system comprising at least one evolved Node-B (eNB) and a plurality of wireless transmit/receive units (WTRUs), a non-contention based (NCB) channel is established, maintained, and utilized. The NCB channel is allocated for use by one or more WTRUs in the system for utilization in a variety of functions, and the allocation is communicated to the WTRUs. The wireless communication system analyzes the allocation of the NCB channel as required, and the NCB channel is reallocated as required. | 02-13-2014 |
| 20140071946 | METHOD AND APPARATUS FOR CARRIER ASSIGNMENT, CONFIGURATION AND SWITCHING FOR MULTICARRIER WIRELESS COMMUNICATIONS - As part of carrier assignment and configuration for multicarrier wireless communications, a single uplink (UL) primary carrier may provide control information for multiple concurrent downlink (DL) carriers. Optionally, control information for each DL carrier may be transmitted over paired UL carriers. Carrier switching of UL and/or DL carriers, including primary and anchor carriers, may occur during normal operation or during handover, and may occur in only the UL or only the DL direction. A unidirectional handover is performed when only an UL carrier or only a DL carrier is switched as part of a handover. Switching of UL and/or DL carriers may be from one component carrier or a subset of carriers to another component carrier, another subset of carriers, or all carriers in the same direction. | 03-13-2014 |
| 20140071965 | METHOD AND SYSTEM FOR SUPPORTING MULTIPLE HYBRID AUTOMATIC REPEAT REQUEST PROCESSES PER TRANSMISSION TIME INTERVAL - A method and apparatus may be used for supporting multiple hybrid automatic repeat request (H-ARQ) processes per transmission time interval (TTI). A transmitter and a receiver may include a plurality of H-ARQ processes. Each H-ARQ process may transmit and receive one TB per TTI. The transmitter may generate a plurality of TBs and assign each TB to a H-ARQ process. The transmitter may send control information for each TB, which may include H-ARQ information associated TBs with the TBs. The transmitter may send the TBs using the associated H-ARQ processes simultaneously per TTI. After receiving the TBs, the receiver may send feedback for each of the H-ARQ processes and associated TBs indicating successful or unsuccessful receipt of each of the TBs to the transmitter. The feedback for multiple TBs may be combined for the simultaneously transmitted H-ARQ processes, (i.e., TBs). When MIMO is implemented, one H-ARQ process may be associated with one MIMO stream, or codeword. The feedback may include a channel quality indicator (CQI) per MIMO stream or codeword. The control information and the feedback may be sent via a layer 1 or layer 2/3 control part. | 03-13-2014 |
| 20140080451 | WIRELESS COMMUNICATION METHOD AND APPARATUS FOR PERFORMING HOME NODE-B IDENTIFICATION AND ACCESS RESTRICTION - A method and a wireless transmit/receive unit (WTRU), including a universal subscriber identity module (USIM), for identifying a closed subscriber group (CSG) cell are disclosed. The WTRU receives a broadcast from a cell including a cell identifier (ID). If the cell ID is associated with a CSG cell, the WTRU determines whether the CSG ID is programmed in the USIM. The cell broadcast may include a single bit information element (IE) indicating that the cell is a CSG cell. If the cell ID is a CSG ID, the cell ID may further include a plurality of fields which indicate at least one of a country, a region, an operator, and a home evolved Node-B (HeNB) number. The cell broadcast may further include a bit indicating whether the CSG cell is public or private. The cell broadcast may further include a bit indicating that emergency calls are allowed from all users. | 03-20-2014 |
| 20140087734 | METHODS AND SYSTEM FOR PERFORMING HANDOVER IN A WIRELESS COMMUNICATION SYSTEM - A method and system for performing handover in a third generation (3G) long term evolution (LTE) system are disclosed. A source evolved Node-B (eNode-B) makes a handover decision based on measurements and sends a handover request to a target eNode-B. The target eNode-B sends a handover response to the source eNode-B indicating that a handover should commence. The source eNode-B then sends a handover command to a wireless transmit/receive unit (WTRU). The handover command includes at least one of reconfiguration information, information regarding timing adjustment, relative timing difference between the source eNode-B and the target eNode-B, information regarding an initial scheduling procedure at the target eNode-B, and measurement information for the target eNode-B. The WTRU then accesses the target eNode-B and exchanges layer 1/2 signaling to perform downlink synchronization, timing adjustment, and uplink and downlink resource assignment based on information included in the handover command. | 03-27-2014 |
| 20140092851 | MAC RESET AND RECONFIGURATION - A method and apparatus for reconfiguring a medium access control (MAC) entity in a wireless transmit receive unit (WTRU). The method and apparatus includes the WTRU transmitting a MAC reconfiguration request, the WTRU receiving a MAC reconfiguration command including updated MAC parameter values and the WTRU reconfiguring a MAC entity based on the updated MAC parameter values in the MAC reconfiguration command. | 04-03-2014 |
| 20140146790 | METHOD AND APPARATUS FOR ACCESSING A RANDOM ACCESS CHANNEL BY SELECTIVELY USING DEDICATED OR CONTENTION-BASED PREAMBLES DURING HANDOVER - A method and apparatus for accessing a random access channel (RACH) during handover are disclosed. A handover procedure is initiated and a maximum handover interruption timer is activated. A dedicated preamble is transmitted in an attempt to access the RACH on a condition that the dedicated preamble is reserved in a current random access opportunity and the maximum handover interruption timer has not expired. A contention-based preamble is transmitted in an attempt to access the RACH on a condition that a dedicated preamble is not reserved in a current random access opportunity. If the maximum handover interruption timer has expired, a contention-based preamble is transmitted in an attempt to access the RACH. | 05-29-2014 |
| 20140185448 | METHOD AND APPARATUS FOR SUPPORTING UPLINK STARVATION AVOIDANCE IN A LONG TERM EVOLUTION SYSTEM - A method and apparatus for uplink (UL) starvation avoidance includes determining a current buffer status information. The current buffer status information is reported to an evolved Node B (eNB). A grant that includes a determination of a number of tokens a wireless transmit/receive unit (WTRU) may accumulate is received from the eNB. | 07-03-2014 |
| 20140192747 | METHOD AND APPARATUS OF SIGNALING AND PROCEDURE TO SUPPORT UPLINK POWER LEVEL DETERMINATION - Method and apparatus are disclosed for determining a physical uplink power level for transmissions on a physical uplink channel. In one embodiment, a random access channel (RACH) uplink message is transmitted. The RACH uplink message includes a RACH message power level and/or a downlink pathloss figure. A downlink message including a power offset value is received. The physical uplink power level is set for transmissions on the physical uplink channel based on the power offset value. In another embodiment, a RACH uplink message is transmitted and a downlink message including a relative power offset value is received. The physical uplink power level for transmissions on the physical uplink channel is then set based on the relative power off set value. | 07-10-2014 |
| 20140204829 | CELL RESELECTION AND HANDOVER WITH MULTIMEDIA BROADCAST/MULTICAST SERVICE - A method and apparatus for providing wireless communication services, (e.g., multimedia broadcast multicast services (MBMS)), are disclosed. A wireless transmit/receive unit (WTRU) detects a plurality of target cell evolved Node-Bs (eNodeBs) that neighbor a serving cell eNodeB. The WTRU evaluates cell reselection criteria and determines a neighboring target cell eNodeB to reselect. The WTRU receives and reads master information block (MIB) and system information messages of the neighboring target cell eNodeB, and confirms that the determined neighboring target cell eNodeB is not part of a multimedia broadcast single frequency network (MBSFN). The WTRU identifies the neighboring target cell eNodeB to the serving cell eNodeB. The WTRU then receives and reads MIB messages of the neighboring target cell eNodeB again to determine whether the system information has changed and, if so, the WTRU reads the system information and reselects to the neighboring target cell eNodeB, which provides the wireless communication services. | 07-24-2014 |
| 20140206355 | METHOD FOR INTER-RADIO ACCESS TECHNOLOGY CELL RESELECTION - A method for performing cell reselection first determines a current cell selection quality value. The cell selection quality value is compared to a predetermined threshold. Measurements of neighboring cells are taken if the cell selection quality value is less than or equal to the predetermined threshold. Measurements can be taken of intra-frequency cells, inter-frequency cells, and inter-radio access technology cells. If a neighboring cell is found that is better than the current cell based on the measurements, then the better neighbor cell is reselected to. | 07-24-2014 |
| 20140206358 | TIMING AND CELL SPECIFIC SYSTEM INFORMATION HANDLING FOR HANDOVER IN EVOLVED UTRA - A method and apparatus for reducing handover time includes a wireless transmit receive unit receiving cell specific information in a downlink signal. The downlink signal is one of a set of signals included in a handover process. | 07-24-2014 |
| 20140233512 | METHOD AND APPARATUS FOR SIGNALING THE RELEASE OF A PERSISTENT RESOURCE - A method and apparatus for signaling the release of a persistent resource in long term evolution (LTE) are disclosed. An indication of the release of a downlink (DL) persistent resource is received by a wireless transmit receive unit (WTRU) from an evolved Node-B (eNB) via a physical downlink control channel (PDCCH). A positive acknowledgement (ACK) is transmitted by the WTRU which denotes that the indication has been received. The PDCCH or a medium access control (MAC) CE may be used by the eNB to signal the indication. At least one bit may be added to contents of the PDCCH to signal whether the PDCCH is for DL persistent or dynamic resource allocation. The DL persistent resource is then released and an indication that the DL persistent resource has been released is transmitted. | 08-21-2014 |
| 20140286266 | METHOD AND APPARATUS FOR PRIORITIZING LOGICAL CHANNELS - A method and apparatus are disclosed for prioritizing logical channels when a new transmission is performed. Logical channel resources are allocated for available data to a plurality of logical channels. A maximum bit rate (MBR) credit (i.e., token) is decremented in a buffer (i.e., bucket) associated with a particular one of the logical channels by the size of a medium access control (MAC) service data unit (SDU). The MBR credit may have a negative value. If any of the allocated channel resources remain, the logical channels are served in a decreasing priority order until the data is exhausted. A radio link control (RLC) SDU is not segmented if the whole RLC SDU fits into the remaining resources. The MAC SDU excludes a MAC PDU header and MAC padding. | 09-25-2014 |
| 20140293915 | METHOD AND APPARATUS FOR RANDOM ACCESS IN MULTICARRIER WIRELESS COMMUNICATIONS - Methods and apparatus for random access in multicarrier wireless communications are disclosed. Methods and apparatus are provided for physical random access channel (PRACH) resource signaling, PRACH resource handling, preamble and PRACH resource selection, random access response (RAR) reception, preamble retransmission, and transmission and reception of subsequent messages. A method for maintaining an allowed multicarrier uplink (UL) random access channel (RACH) configuration set by adding an UL carrier to the allowed RACH configuration set provided that a triggering event occurs and performing a random access (RA) procedure using the allowed RACH configuration set. A method for sending data in multicarrier wireless communications by determining a set of available UL carriers and selecting an UL carrier from the set of available UL carriers. | 10-02-2014 |
| 20140294179 | METHOD AND APPARATUS FOR CIPHERING PACKET UNITS IN WIRELESS COMMUNICATIONS - A method and apparatus are disclosed relating to ciphering and de-ciphering of packet units in wireless devices during retransmission in wireless communications. The packet units are re-segmented with the ciphering done on the re-segmented packet unit or on a radio link control protocol data unit (RLC PDU) with or without segmentation. Alternatively, the re-segmentation is done on the radio link control service data unit (RLC SDU) with or without segmentation. Alternatively, the ciphering process and multiplexing of the RLC PDU is done in the medium access control (MAC) layer of a MAC PU before undergoing a hybrid automatic repeat request (HARQ) process for retransmission. Further, the ciphering process in the RLC is done on a packet data convergence protocol packet data unit (PDCP PDU). | 10-02-2014 |
| 20140314030 | CONFIGURATION FOR CQI REPORTING IN LTE - A method and apparatus for receiving and processing channel quality index (CQI) reporting. A wireless transmit receive unit is configured to receive CQI configuration information and transmit a CQI report based on the CQI configuration information. | 10-23-2014 |
| 20140362760 | METHOD AND APPARATUS FOR PROVIDING MULTI-RATE BROADCAST SERVICES - A method and apparatus for providing multi-rate broadcast services in a wireless communication system are disclosed. The present invention takes advantage of the higher capacity of better channels by providing a certain data rate common to all users, while sending additional information to users with better channel conditions. A base station transmits a broadcast message including common information at a basic rate and additional information at a rate higher than the basic rate. The basic rate guarantees successful receipt by all WTRUs in a coverage area and the rate for the additional information is set such that only certain WTRUs with a channel condition above a threshold may decode the additional information successfully. The WTRU decodes the common information and subtracts the common information from received signals to decode the additional information. The additional information may be information supplementing the common information, such as video information. | 12-11-2014 |
| 20140362833 | METHOD AND SYSTEM FOR SUPPORTING MULTIPLE HYBRID AUTOMATIC REPEAT REQUEST PROCESSES PER TRANSMISSION TIME INTERVAL - A method and apparatus may be used for supporting multiple hybrid automatic repeat request (H-ARQ) processes per transmission time interval (TTI). A transmitter and a receiver may include a plurality of H-ARQ processes. Each H-ARQ process may transmit and receive one TB per TTI. The transmitter may generate a plurality of TBs and assign each TB to a H-ARQ process. The transmitter may send control information for each TB, which may include H-ARQ information associated TBs with the TBs. The transmitter may send the TBs using the associated H-ARQ processes simultaneously per TTI. After receiving the TBs, the receiver may send feedback for each of the H-ARQ processes and associated TBs indicating successful or unsuccessful receipt of each of the TBs to the transmitter. The feedback for multiple TBs may be combined for the simultaneously transmitted H-ARQ processes, (i.e., TBs). | 12-11-2014 |
