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 |
20100239040 | DATA AND CONTROL MULTIPLEXING FOR UPLINK MIMO WITH CARRIER AGGREGATION AND CLUSTERED-DFT - A method and apparatus for signal processing in a wireless transmit receive unit (WTRU), including generating a plurality of data bits and a plurality of control bits, mapping the data bits and control bits to one or more codewords, multiplexing the data bits and control bits, dividing the bits into layers, allocating control bits to each layer based on a channel quality of each codeword and a channel quality of each layer, and channel interleaving each layer for output to one or more antennas. | 09-23-2010 |
20100246705 | METHOD AND APPARATUS FOR UPLINK POWER CONTROL IN MULTIPLE-INPUT MULTIPLE-OUTPUT - A method and apparatus for uplink power control in multiple-input multiple-output (MIMO) includes setting a transmit power level for a physical uplink shared channel (PUSCH) transmission. | 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 |
20100273517 | METHOD AND APPARATUS FOR COMPONENT TEMPERATURE CONTROL BASED ON REDUCTION OF DATA RATE AND WTRU TRANSMIT POWER - A method and an apparatus are provided for controlling component temperature in a wireless transmit receive unit (WTRU) and thereby preventing the component from reaching an undesirable temperature. A method and an apparatus are provided for reducing a value of a maximum allowed transmit power to adjust a data rate. The WTRU adjusts the value of the maximum allowed transmit power resulting in an adjustment to the temperature of the component. | 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 |
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 |
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 |
20110081936 | METHOD AND APPARATUS FOR CONTROLLING TRANSMIT POWER OF TRANSMISSIONS ON MORE THAN ONE COMPONENT CARRIER - A method and apparatus for controlling or determining transmit power of transmissions on more than one component carrier (CC) is disclosed. A WTRU may set a transmit power for each of a plurality of channels mapped to multiple CCs. The channels may include at least one physical uplink shared channel (PUSCH) and may also include at least one physical uplink control channel (PUCCH). | 04-07-2011 |
20110096815 | POWER CONTROL FOR DEVICES HAVING MULTIPLE ANTENNAS - Power control for devices having multiple transmit antennas are disclosed, including power control methods for Physical Uplink Control Channel (PUCCH) and Sounding Reference Signal (SRS) transmissions for a wireless transmit/receive unit (WTRU). The PUCCH and SRS power control methods include selecting a multiple input multiple output (MIMO) mode and changing the power of the PUCCH or SRS transmission based on the selected MIMO mode. Another power control method estimates an antenna gain imbalance (AGI) for a WTRU having at least two transmit antennas. The AGI is based on measuring a Reference Signal Received Power (RSRP) on each transmit antenna. Each transmit antenna is then scaled by an AGI scaling factor based on the estimated AGI. | 04-28-2011 |
20110105173 | POWER CONTROL METHODS AND APPARATUS - Methods and apparatus for power control are described. Methods are included for calculating and signaling power control related data to support multiple component carriers (CCs) for which transmission may be accomplished with one or more WTRU power amplifiers (PAs). Methods are included for calculating and signaling one or more of CC-specific power control related data and PA-specific power control related data. The power control related data may include one or more of maximum power, power headroom, and transmit power. Methods for selecting which power control related data to exchange are included. Methods are included for calculating and signaling power control related data for physical UL shared channel (PUSCH), physical UL control channel (PUCCH), and simultaneous PUSCH and PUCCH transmission. | 05-05-2011 |
20110141928 | SIGNALING UPLINK CONTROL INFORMATION IN LTE-A - Methods and systems for transmitting uplink control information in an LTE Advanced system are disclosed. A user device may determine whether uplink control information and/or available channels meet certain criteria and determine whether the uplink control information should be transmitted on a physical uplink control channel, a physical uplink shared channel, or both, based on the criteria. Criteria may include the size of the uplink control information (absolute size or relative to space available on a channel or a threshold value), the type of control information bits, the number of available (i.e., active or configured) component carriers, and the amount of power that may be required to transmit the uplink control information on more than one channel. | 06-16-2011 |
20110261747 | METHOD AND APPARATUS FOR SUPPORTING COMMUNICATION VIA A RELAY NODE - A method and apparatus for supporting communication via a relay node are disclosed. A relay node may receive wireless transmit/receive unit (WTRU) buffer status reports (BSRs) from a plurality of WTRUs that are served by the relay node. The WTRU BSRs indicate uplink buffer status at the WTRUs. The relay node then may forward the WTRU BSRs to a donor evolved Node B (DeNB). The relay node may send a relay node BSR to the DeNB. The relay node BSR indicates a relay node uplink buffer status and/or a relay node downlink buffer status at the relay node. The relay node may send a radio resource control (RRC) message to the DeNB for requesting radio resource reconfiguration. | 10-27-2011 |
20110268028 | UPLINK SOUNDING REFERENCE SIGNALS CONFIGURATION AND TRANSMISSION - Methods and apparatus for sounding reference signals (SRS) configuration and transmission. The methods include receiving configuration of wireless transmit/receive unit (WTRU)-specific SRS subframes for transmitting SRS and upon receipt of a trigger, transmitting the SRS for a number of antennas. The SRS transmissions may occur in each subframe of a duration of WTRU-specific SRS subframes that start a number of WTRU-specific SRS subframes after a triggering subframe. For multiple SRS transmissions from multiple antennas, cyclic shift multiplexing and different transmission combs may be used. The cyclic shift for an antenna may be determined from a cyclic shift reference value. The cyclic shift determined for each antenna providing a maximum distance between cyclic shifts for the antennas transmitting SRS in a same WTRU-specific subframe. SRS transmissions from multiple antennas in the WTRU-specific subframe may be done in parallel. Methods for handling collisions between SRS and physical channels are presented. | 11-03-2011 |
20120026929 | METHOD AND APPARATUS FOR MULTIMEDIA BROADCAST MULTICAST SERVICES (MBMS) SERVICE FEEDBACK - A method and apparatus are described for providing multimedia broadcast multicast services (MBMS) service feedback. A wireless transmit/receive unit (WTRU) may receive an MBMS service query message over an MBMS control channel and transmit an MBMS service response. The MBMS service query message and MBMS service response message may be radio resource controller messages. The MBMS service query message may include MBMS service identifiers which identify MBMS services that the WTRU is receiving or intending to receive. The WTRU may generate a report with MBMS service identifier index values, where each MBMS service identifier index value indicates a position of a service identifier corresponding to an MBMS service in the original query list that the WTRU is currently receiving or intending to receive. The MBMS service status query message may be received alone or along with a MBSFNAreaConfiguration message. The WTRU may respond within a predetermined or configured time limit. | 02-02-2012 |
20120108199 | USING PERSONAL WIRELESS DEVICES FOR NETWORK TESTING - A personal wireless device is utilized to carry out measurements of one or more network-performance related metrics in response to a triggering event. The triggering event can be a message that is transmitted by a network element to the personal wireless device. The personal wireless device may be exemplified by a variety of personal devices such as, for example, a cellular phone, or a personal digital assistant (PDA). The measurements may be used to derive network-performance related information such as cellular signal coverage areas, signal hole areas, and signal interference areas. | 05-03-2012 |
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 |
20120176947 | METHOD AND APPARATUS FOR SENDING FEEDBACK FOR MULTI-CELL HIGH SPEED DOWNLINK PACKET ACCESS OPERATIONS - A method and apparatus for sending feedback for multi-cell high speed downlink packet access (HSDPA) operations are disclosed. A wireless transmit/receive unit (WTRU) may generate and send hybrid automatic repeat request acknowledgement (HARQ-ACK) messages and/or channel quality indication (CQI) or precoding control indication/channel quality indication (PCI/CQI) messages for a plurality of cells via a plurality of high speed dedicated physical control channels (HS-DPCCHs) with a spreading factor of 128. Each HARQ-ACK message may be mapped to two cells and each CQI or PCI/CQI message may be mapped to one cell. The cells may be remapped to an HARQ-ACK message and a CQI or PCI/CQI message within an HS-DPCCH on a condition that any cell is activated or deactivated on that HS-DPCCH. | 07-12-2012 |
20120178494 | METHODS, APPARATUS AND SYSTEMS FOR HANDLING ADDITIONAL POWER BACKOFF - Methods, apparatus and systems are described for a wireless transmit/receive unit (WTRU) to manage its transmission power. A power headroom report (PHR) may be triggered based on changes to backoff or the impacts of backoff. Additional backoff may be used to calculate a maximum output power of the WTRU and may be indicated by a domination indicator to network resources. The WTRU may be configured to eliminate triggers caused by virtual PHRs. Furthermore, the WTRU may be configured to respond to rapid changes to backoff. | 07-12-2012 |
20120300715 | METHOD AND APPARATUS FOR OBTAINING UPLINK TIMING ALIGNMENT ON A SECONDARY CELL - A method for uplink timing alignment in a wireless transmit/receive unit. The method includes receiving control signaling from an evolved Node B, receiving a message for Random Access Channel on a secondary cell, and completing the RACH upon receipt of the message, wherein the message includes a medium access control (MAC) control element with at least an 11-bit time advance command. | 11-29-2012 |
20120302240 | APPARATUS AND METHODS FOR GROUP WIRELESS TRANSMIT/RECEIVE UNIT (WTRU) HANDOVER - Apparatus and methods of handing over a wireless transmit/receive unit (WTRU) that belongs to a group of WTRUs from an originating base station to a target base station are described. A method includes the WTRU obtaining information regarding a group to which the WTRU has been assigned and the WTRU receiving at least one of handover reconfiguration information that is common to the group and handover reconfiguration information that is specific to the WTRU. On a condition that the WTRU receives the handover reconfiguration information that is specific to the WTRU, the WTRU initiates a synchronization procedure with the target base station based at least on the received handover reconfiguration information. | 11-29-2012 |
20120314569 | Relay Node Interface Related Layer 2 Measurements and Relay Node Handling in Network Load Balancing - A method for performing radio usage measurements to support radio link operations and/or load balancing may be performed at an evolved Node B (eNB). The method may include determining a first radio usage parameter. The first radio usage parameter may be a measurement of radio usage between an eNB and at least one wireless transmit receive unit (WTRU). The method may further include determining a second radio usage parameter. The second radio usage parameter may be a measurement of radio usage between the eNB and at least one relay node (RN) served by the eNB. The method may further include utilizing at least one of the first radio usage parameter or the second radio usage parameter to evaluate at least one of evolved universal terrestrial radio access (E-UTRA) radio link operations, radio resource management (RRM), network operations and maintenance (OAM), and self-organizing networks (SON) functions or functionalities. | 12-13-2012 |
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 |
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 |
20130114472 | CARRIER AGGREGATION OF CARRIERS WITH SUBFRAME RESTRICTIONS - Embodiments contemplate enabling relay node uplink control information transmission on an interface between a relay node and a donor eNodeB (DeNB) in one or more subframes. Embodiments contemplate techniques to avoid restrictions on uplink transmissions on a cell (perhaps due to subframe configuration), such as on a primary cell, where the restrictions may make relay node uplink control information transmission difficult (if not impossible) on the interface between a relay node and a donor eNodeB (DeNB). Embodiments also contemplate that resources on the interface between the relay node and the donor eNodeB may be scheduled across one or more component carriers or serving cells. | 05-09-2013 |
20130114505 | METHOD AND APPARATUS FOR POWER CONTROL FOR WIRELESS TRANSMISSIONS ON MULTIPLE COMPONENT CARRIERS ASSOCIATED WITH MULTIPLE TIMING ADVANCES - A method and apparatus for power control for wireless transmissions on multiple component carriers associated with multiple timing advances are disclosed. A wireless transmit/receive unit (WTRU) may perform power scaling or other adjustments on physical channels in each subframe to be transmitted on component carriers that belong to different timing advance groups (TAGs) if a sum of the transmit powers of the channels would or is to exceed a configured maximum output power for that subframe where each TAG may be associated with a separate timing advance value for uplink transmissions. The WTRU may adjust the transmit power of at least one physical channel if a sum of transmit powers in an overlapping portion of subframes of a less advanced TAG and a more advanced TAG would or is to exceed a configured maximum WTRU output power during the overlap. | 05-09-2013 |
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 |
20130176953 | METHODS, APPARATUS AND SYSTEMS FOR POWER CONTROL AND TIMING ADVANCE - A wireless transmit/receive unit (WTRU) may establish communication with a first set of cells and a second set of cells. The first set of cells may be associated with a first scheduler and the second set of cells may be associated with a second scheduler. The maximum allowed transmit power for the WTRU may be determined for and/or distributed across the first set of cells and the second set of cells. The first scheduler may determine a first maximum power value for the first set of cells and a second maximum power value for the second set of cells configured. The first scheduler may signal the second maximum power value to the second scheduler. | 07-11-2013 |
20130183971 | Systems And/Or Methods For Providing Relay Mobility - Systems or methods for managing a handover (e.g. over a Un or Uu connection or interface) of a relay from an eNB such as a source eNB to another eNB such as a target eNB may be provided where the source eNB or DeNB may provide a backhaul link to the relay and the relay may provide an access link to a user equipment (UE). To manage the handover, access information may be received and a determination may be made regarding whether one or more target eNBs may be capable of handling the relay based on the access information. Additionally, the relay that may be handed over may be configured to use radio access network (RAN) sharing, a mobility management entity (MME) may be selected, and/or a EUTRAN radio access bearer (E-RAB) may be modified. | 07-18-2013 |
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 |
20130215823 | Reference Signal Configuration for Extension Carriers And Carrier Segments - Reference signals configured for use with extension carriers and/or carrier segments are described. Reference signals for extension carriers and/or carrier segments may include demodulation reference signals (e.g., user equipment-specific reference signals), cell-specific reference signals, and channel-state information reference signals. Methods, systems and apparatuses for configuring extension carriers and/or carrier segments with one or more of the reference signals (e.g., positioning one or more reference signal symbols in extension carriers and/or carrier segments) are described. | 08-22-2013 |
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 |
20130250918 | RELAY NODE INTERFACE RELATED LAYER 2 MEASUREMENTS AND RELAY NODE HANDLING IN NETWORK LOAD BALANCING - A method for performing radio usage measurements to support radio link operations and/or load balancing may be performed at an evolved Node B (eNB). The method may include determining a first radio usage parameter. The first radio usage parameter may be a measurement of radio usage between an eNB and at least one wireless transmit receive unit (WTRU). The method may further include determining a second radio usage parameter. The second radio usage parameter may be a measurement of radio usage between the eNB and at least one relay node (RN) served by the eNB. The method may further include utilizing at least one of the first radio usage parameter or the second radio usage parameter to evaluate at least one of evolved universal terrestrial radio access (E-UTRA) radio link operations, radio resource management (RRM), network operations and maintenance (OAM), and self-organizing networks (SON) functions or functionalities. | 09-26-2013 |
20130288739 | APPARATUS AND METHODS FOR DETERMINATION OF GAIN FACTORS FOR WIRELESS COMMUNICATION TRANSMISSION POWER - Apparatus and methods for wireless communication transmission power control are provided. Determination of gain factors and adjustments for physical channel reconfiguration in the context of transmission power control are addressed. Preferably, implementation is in conjunction with communication systems in which wireless communications are conducted between wireless transmit receive units (WTRUs) using multiple channels that are concurrently transmitted. | 10-31-2013 |
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 |
20140086173 | METHODS, SYSTEMS AND APPARATUSES FOR OPERATION IN LONG-TERM EVOLUTION SYSTEMS - Methods, systems and apparatuses for operation in long-term evolution (LTE) systems are provided, including a method implemented by a wireless transmit/receive unit (WTRU) served by a cell, where an enhanced physical broadcast channel (ePBCH) may be sent by the cell and may including basic information for WTRU control. The method may include receiving, by the WTRU, the ePBCH, and demodulating the ePBCH based on a demodulation reference signal (DMRS). In some embodiments, demodulating the ePBCH may be based on any of: a primary synchronization signal (PSS), a secondary synchronization signal; and a cell-specific reference signal (CRS), as well. Also provided is a method implemented by a WTRU in a vicinity of a dormant cell. The method may include any of: receiving, from a dormant cell, a signal; receiving, from a serving cell, a trigger to initiate measurement of one or more dormant cells; and measuring the signal. | 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 |
20140161039 | SCHEDULING DATA TRANSMISSION BY MEDIUM ACCESS CONTROL (MAC) LAYER IN A MOBILE NETWORK - A method for determining padding compatibility is disclosed. A determination is made of a number of protocol data units (PDUs) for a logical channel mapped to a transport channel such that, for a logical channel allowing segmentation, calculate n wherein n=service data unit size/transport block size (SDU size/TB size), and on a condition that n is an integer, setting the number of PDUs=n. | 06-12-2014 |
20140198744 | METHOD AND APPARATUS FOR DATA-SPLITTING TRANSMISSION FROM MULTIPLE SITES - Methods and apparatus for changing cell range coverage are disclosed. The coverage may be changed on a per-sub-frame basis. An antenna beam elevation tilting angle may be adjusted to provide different effective downlink (DL) coverage. For example, a subframe may be a small tilt subframe or a large tilt subframe. A network or evolved NodeB (eNB) may determine data channel transmission power to adjust cell range per subframe. Low Power Subframe (LPS) may be used alone or with Almost Blank Subframe (ABS) to transmit data. Timing Advance (TA) handling for uplink (UL) transmissions is described. A common TA (CTA) may be determined for multi-site UL signaling. UL power control may be determined for UL transmission to multiple sites. Radio Link Monitoring (RLM) may be performed for multiple sites on a carrier frequency. A wireless transmit/receive unit (WTRU) may maintain synchronization in selected subframes for multiple cells. | 07-17-2014 |
20140219159 | METHOD AND APPARATUS FOR MULTIMEDIA BROADCAST MULTICAST SERVICES (MBMS) SERVICE FEEDBACK - A method and apparatus are described for providing multimedia broadcast multicast services (MBMS) service feedback. A wireless transmit/receive unit (WTRU) may receive an MBMS service query message over an MBMS control channel and transmit an MBMS service response. The MBMS service query message and MBMS service response message may be radio resource controller messages. The MBMS service query message may include MBMS service identifiers which identify MBMS services that the WTRU is receiving or intending to receive. The WTRU may generate a report with MBMS service identifier index values, where each MBMS service identifier index value indicates a position of a service identifier corresponding to an MBMS service in the original query list that the WTRU is currently receiving or intending to receive. The MBMS service status query message may be received alone or along with a MBSFNAreaConfiguration message. The WTRU may respond within a predetermined or configured time limit. | 08-07-2014 |
20140302885 | APPARATUS AND METHODS FOR DETERMINATION OF GAIN FACTORS FOR WIRELESS COMMUNICATION TRANSMISSION POWER - Apparatus and methods for wireless communication transmission power control are provided. Determination of gain factors and adjustments for physical channel reconfiguration in the context of transmission power control are addressed. Preferably, implementation is in conjunction with communication systems in which wireless communications are conducted between wireless transmit receive units (WTRUs) using multiple channels that are concurrently transmitted. | 10-09-2014 |
20140362814 | METHOD AND APPARATUS FOR CONTROLLING TRANSMIT POWER OF TRANSMISSIONS ON MORE THAN ONE COMPONENT CARRIER - A method and apparatus for controlling or determining transmit power of transmissions on more than one component carrier (CC) is disclosed. A WTRU may set a transmit power for each of a plurality of channels mapped to multiple CCs. The channels may include at least one physical uplink shared channel (PUSCH) and may also include at least one physical uplink control channel (PUCCH). | 12-11-2014 |
20150024706 | USING PERSONAL WIRELESS DEVICES FOR NETWORK TESTING - A personal wireless device is utilized to carry out measurements of one or more network-performance related metrics in response to a triggering event. The triggering event can be a message that is transmitted by a network element to the personal wireless device. The personal wireless device may be exemplified by a variety of personal devices such as, for example, a cellular phone, or a personal digital assistant (PDA). The measurements may be used to derive network-performance related information such as cellular signal coverage areas, signal hole areas, and signal interference areas. | 01-22-2015 |
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 |
20150043413 | METHOD AND APPARATUS FOR POWER CONTROL FOR WIRELESS TRANSMISSIONS ON MULTIPLE COMPONENT CARRIERS ASSOCIATED WITH MULTIPLE TIMING ADVANCES - A method and apparatus for power control for wireless transmissions on multiple component carriers corresponding to multiple serving cells associated with multiple timing advances are disclosed. A wireless transmit/receive unit (WTRU) may determine transmit powers for a first physical channel for a first serving cell in a first timing advanced group (TAG) and a second physical channel for a second serving cell in a second TAG. The first TAG may less timing advanced than the second TAG. The WTRU may determine a WTRU configured maximum output power (P | 02-12-2015 |