Patent application number | Description | Published |
20120218567 | COMPUTER PROGRAM FOR GENERATING 1-BIT IMAGE DATA FROM MULTIPLE-BIT IMAGE DATA - A computer program for and a method of generating 1-bit image data from multiple-bit image data, by a process which comprises the steps of: receiving multiple-bit image data comprising multiple-bit pixel values; and deriving from the multiple-bit pixel values 1-bit image data comprising “on” and “off” pixel values, each pixel value of the 1-bit image data corresponding to a pixel of an output medium, which pixel an output device would attempt to mark when printing the 1-bit image data if the pixel value were “on”, the 1-bit image data producing when printed an image constituted by a plurality of densities of dot, the dots are arranged such that, at least for densities of dots greater than a first threshold density, at least a majority of dots form a pair with at least one horizontally or vertically adjacent dot, and for densities of dots less than a second threshold density, the image is substantially free of blocks of 2*2 horizontally and vertically adjacent dots, the second threshold density being greater than the first threshold density, additionally or alternatively, the dots being arranged such that, for densities of dots greater than a first threshold density and less than a second threshold density, at least a majority of dots form a pair with one horizontally or vertically adjacent dot, for densities of dots greater than the second threshold density and less than a third threshold density, at least a majority of pairs of horizontally and vertically adjacent dots form a triplet with one horizontally or vertically adjacent dot, and for densities of dots greater than the third threshold density and less than a fourth threshold density, at least a majority of dots form triplets with two horizontally or vertically adjacent dots, the second threshold density being greater than the first threshold density, the third threshold density being greater than the second threshold density, and the fourth threshold density being greater than the third threshold density, additionally or alternatively the dots are arranged such that, for densities of dots greater than a first threshold density, at least a majority of dots form a pair with a horizontally or vertically adjacent dot, for densities of dots greater than a second threshold density, some pairs of dots form a triplet with a horizontally or vertically adjacent dot, and for densities of dots greater than a third threshold density, at least a majority of pairs of dots form a triplet with a horizontally or vertically adjacent dot, the second threshold density being greater than the first threshold density and the third threshold density being greater than the second threshold density, and for each density of dots between the first and third threshold densities, numbers of dots constituting substantially all isolated groups of horizontally and vertically adjacent dots differing by no more than one. | 08-30-2012 |
20120218607 | COMPUTER PROGRAM FOR GENERATING 1-BIT IMAGE DATA FROM MULTIPLE-BIT IMAGE DATA - A computer program for, or method of, generating 1-bit image data from multiple-bit image data, by a process which comprises the steps of: receiving multiple-bit image data comprising multiple-bit pixel values; and deriving from the multiple-bit pixel values 1-bit image data comprising “on” and “off pixel values, each pixel value of the 1-bit image data corresponding to a pixel of an output medium, which pixel an output device would attempt to mark when printing the 1-bit image data if the pixel value were “on”, the 1-bit image data producing when printed an image constituted by dots, each dot corresponding to a plurality of pixel values of the 1-bit image data, which pixel values correspond to a block of M*N horizontally and/or vertically adjacent pixels of an output is medium, at least one of M and N being greater than one, wherein for at least some of the dots, where M or N is equal to one, a pixel value corresponding to a first or last pixel of a row of horizontally adjacent pixels, or to a first or last pixel of a column of vertically adjacent pixels, is “off, and where both M and N are greater than one, at least one pixel value corresponding to a pixel of a first or last row of horizontally adjacent pixels is “off and/or at least one pixel value 20 corresponding to a pixel of a first or last column of vertically adjacent pixels is “off. | 08-30-2012 |
Patent application number | Description | Published |
20090109937 | SELECTING TRANSMISSION PARAMETERS FOR CONTENTION-BASED ACCESS IN WIRELESS SYSTEMS - A method and apparatus are disclosed for selecting a channel for uplink communication includes determining whether a cell supports transmission over an enhanced random access channel (E-RACH) and selecting whether to send uplink communications over the E-RACH or a random access channel. A method for selecting a transmission time interval (TTI) for use on an E-RACH includes evaluating radio conditions measured at a user equipment and selecting a long TTI if radio conditions are bad and selecting a short TTI if radio conditions are good. Alternatively, the TTI can be selected based on an amount of data to be transmitted on the uplink. A user equipment, an integrated circuit, or a Node B can be configured to perform either method. | 04-30-2009 |
20110201343 | METHOD AND APPARATUS FOR SUPPORTING MACHINE-TYPE COMMUNICATIONS - A method and apparatus for supporting machine-type communications (MTC) are disclosed. A wireless transmit/receive unit (WTRU) may configure itself to operate in a mobile-originated-only mode. The WTRU may perform no, or a subset of, radio resource control (RRC) idle and/or non-access stratum (NAS) idle/standby state procedures in the mobile-originated-only mode. For example, the WTRU may perform cell reselection but not paging monitoring in the mobile-originated-only mode. Alternatively, the WTRU may perform paging monitoring but not cell reselection and location update. The operation in the mobile-originated-only mode may be triggered explicitly or implicitly. For example, the WTRU may operate in the mobile-originated-only mode if an inactivity timer expires. The WTRU may switch the mode in accordance with a pre-configured schedule. After transition of the operation mode, the WTRU may send a message to the network indicating such mode switch. | 08-18-2011 |
20120122408 | Method And Apparatus For Mapping Of Absolute Power Grant Values in Wireless Communications - A method and apparatus for adjusting power grants in wireless communications. Multiple power grant tables are stored and one or more tables are designated during communication. | 05-17-2012 |
20120127959 | METHOD AND APPARATUS FOR HANDLING CELL RESELECTIONS AND TRANSITIONS TO AND FROM AN ENHANCED CELL_FACH STATE - A method and apparatus for handling cell reselections and transitions includes executing a cell reselection. A medium access control (MAC)-ehs reset is performed. | 05-24-2012 |
20120147835 | WIRELESS COMMUNICATION METHOD AND APPARATUS FOR SUPPORTING RECONFIGURATION OF RADIO LINK CONTROL PARAMETERS - A variety of wireless communication methods and apparatus for supporting reconfiguration of radio link control (RLC) parameters are disclosed. A radio resource control (RRC) reconfiguration message is generated that indicates that an RLC unit in a wireless transmit/receive unit (WTRU) or a universal terrestrial radio access network (UTRAN) should be reconfigured from supporting flexible size RLC protocol data units (PDUs) to supporting fixed size RLC PDUs. If an information element (IE) “one sided RLC re-establishment” is present in the RRC reconfiguration message, only a receiving side subassembly in the RLC unit is re-established. Otherwise, both the receiving side subassembly and a transmitting side subassembly in the RLC unit are re-established. Flexible size RLC PDUs may be discarded and a message indicating the discarded flexible size RLC PDUs may be transmitted. The flexible size RLC PDUs may be modified such that they correspond to a set of pre-defined sizes. | 06-14-2012 |
20120307723 | Method and Apparatus For Generating Radio Link Control Protocol Data Units - A method and apparatus are used to generate radio link control (RLC) protocol data units (PDUs). A data request for a logical channel is received as part of an enhanced dedicated channel (E-DCH) transport format combination (E-TFC) selection procedure in a medium access control (MAC). Upon determining the data field size, an RLC PDU is generated such that it matches the requested data from the E-TFC selection. The size of the RLC PDU generated can be greater than or equal to the minimum configured RLC PDU size (if data is available) and less than or equal to the maximum RLC PDU size. The data is then transmitted in the RLC PDU in a current transmission time interval (TTI). | 12-06-2012 |
20130003665 | Method And Apparatus For Selecting Enhanced Dedicated Channel Transport Format Combination In Cell_Fach State And Idle Mode - A method and apparatus for selecting an enhanced dedicated channel (E-DCH) transport format combination (E-TFC) in Cell_FACH state and idle mode are disclosed. A wireless transmit/receive unit (WTRU) transmits a random access channel (RACH) preamble and receives an index to an E-DCH resource in response to the RACH preamble. The WTRU may estimate a power headroom based on the maximum WTRU transmit power, power offset value, and the last successfully transmitted RACH preamble transmit power. The WTRU restricts an E-TFC based on the estimated power headroom, and selects an E-TFC based on a set of supported E-TFCs. The WTRU then generates, and transmits, a protocol data unit (PDU) based on the selected E-TFC. | 01-03-2013 |
20130235829 | METHOD AND APPARATUS PROVIDING FAST CONTROL CHANNEL FEEDBACK FOR MULTIPLE DOWNLINK CARRIER OPERATIONS - A method and apparatus for fast control channel feedback for multiple downlink carrier operations are disclosed. A wireless transmit/receive unit (WTRU) receives signals over a plurality of downlink carriers, generates feedback for each of the plurality of downlink carriers based on the received signals, and transmits via a plurality of antennas, the feedback for at least one of the plurality of downlink carriers over a first physical channel and feedback for another of the plurality of downlink carriers over a second physical channel. | 09-12-2013 |
20130242944 | METHOD AND APPARATUS OF FEEDBACK SIGNALING - A method and apparatus of feedback signaling using a high speed dedicated physical control channel (HS-DPCCH) includes transmitting to a first cell a first uplink feedback signal that includes channel quality information (CQI) associated with the first cell A second uplink feedback signal that includes CQI information associated with a second cell is transmitted to the second cell. | 09-19-2013 |
20140004871 | SYSTEM AND METHOD FOR DETERMINING AIR INTERFACE INFORMATION FOR RADIO RESOURCE MANAGEMENT IN WIRELESS COMMUNICATIONS | 01-02-2014 |
20140016572 | Method And Apparatus For Performing An Enhanced Random Access Channel Procedure In A Cell_Fach State - A method and apparatus for performing an enhanced random access procedure in a Cell_FACH state are disclosed. A wireless transmit/receive unit (WTRU) transmits a random access channel (RACH) preamble for random access. If a positive acknowledgement (ACK) is received in response to the RACH preamble, the WTRU enters a contention resolution phase and transmits a message via an enhanced dedicated channel (E-DCH). If contention resolution fails, the RACH preamble is retransmitted. A contention back-off timer may be used for retransmission. A physical random access channel (PRACH) code may be reselected. The RACH preamble may be retransmitted using a reserved PRACH resource so that E-DCH resource is allocated to the collided WTRUs. Data transmitted during the contention resolution phase may remain in a hybrid automatic repeat request (HARQ) buffer. The MAC-i/is entity may be reset. All data sent during the contention resolution phase may be stored in a temporary buffer. | 01-16-2014 |
20140044102 | METHOD AND APPARATUS FOR PERFORMING A SERVING CELL CHANGE - A method and apparatus for performing a serving high speed downlink shared channel (HS-DSCH) cell change from a source cell to a target cell are disclosed. A wireless transmit/receive unit (WTRU) may be pre-configured with HS-DSCH configuration for the target cell. The WTRU may start monitoring a high speed shared control channel (HS-SCCH) on the target cell using the pre-loaded HS-DSCH configuration for the target cell on a condition that a measurement report is triggered by the event 1D. The WTRU may initiate a timer when the WTRU starts monitoring the HS-SCCH on the target cell. | 02-13-2014 |
20140140276 | MAC AND RLC ARCHITECTURE AND PROCEDURES TO ENABLE RECEPTION FROM MULTIPLE TRANSMISSION POINTS - A method for use in a wireless transmit receive unit (WTRU) for two-stage reordering of received protocol data units (PDUs). The method comprising receiving PDUs from Node-Bs, wherein each of the received PDUs has a transmission sequence number (TSN), reordering the received PDUs from Node-Bs using the TSN in a MAC layer in different reordering queues, delivering the received PDUs from reordering queues to one logical channel in the RLC layer, reordering the received PDUs in the RLC layer based on a sequence number (SN), starting a timer when at least a RLC PDU is missing based on SN of the RLC PDU, and transmitting a status report indicating a missing RLC PDU based on SN of the RLC PDU if the timer expires, wherein transmission of the status report is delayed if a RLC PDU is missing based on SN of the RLC PDU and the timer is running. | 05-22-2014 |
20140146773 | SYNCHRONIZATION PROCEDURE IN A WIRELESS NETWORK - A synchronization procedure in a wireless network is disclosed. A network device receives, from a wireless transmit/receive unit (WTRU) in a CELL_FACH state, data via an enhanced dedicated channel (E-DCH). The WTRU may transition to a CELL_DCH state from the CELL_FACH state. The WTRU may transition to the CELL_DCH state without subsequently performing a synchronization procedure A. | 05-29-2014 |
20140169304 | METHOD AND APPARATUS FOR SENDING AND RECEIVING CHANNEL QUALITY INDICATORS (CQIs) - A method and apparatus for sending and receiving channel quality indicators (CQIs) is disclosed. A CQI may be periodically sent or received. A CQI may also be sent or received upon request by a network. | 06-19-2014 |
20140198806 | METHOD AND APPARATUS FOR GENERATING AND PROCESSING MAC-ehs PROTOCOL DATA UNITS - A network device and wireless transmit/receive unit (WTRU) using an enhanced high speed medium access control (MAC-ehs) are disclosed. A network device may provide a MAC-ehs reordering protocol data unit (PDU) with a segment of a service data unit (SDU). A MAC-ehs PDU is generated including the MAC-ehs reordering PDU. The MAC-ehs PDU is sent via a high speed downlink shared channel (HS-DSCH). The WTRU disassembles MAC-ehs PDUs to provide reordering PDUs that each may include a segment of a MAC-ehs SDU. The WTRU may reassemble a MAC-ehs SDU with the segment of the MAC-ehs SDU from at least one of the reordering PDUs. | 07-17-2014 |
20140235226 | METHOD AND APPARATUS FOR SUPPORTING MACHINE-TYPE COMMUNICATIONS WITH A MOBILE-ORIGINATED-ONLY MODE - A method and apparatus for supporting machine-type communications (MTC) are disclosed. A wireless transmit/receive unit (WTRU) may configure itself to operate in a mobile-originated-only mode. The WTRU may perform no, or a subset of, radio resource control (RRC) idle and/or non-access stratum (NAS) idle/standby state procedures in the mobile-originated-only mode. For example, the WTRU may perform cell reselection but not paging monitoring in the mobile-originated-only mode. Alternatively, the WTRU may perform paging monitoring but not cell reselection and location update. The operation in the mobile-originated-only mode may be triggered explicitly or implicitly. For example, the WTRU may operate in the mobile-originated-only mode if an inactivity timer expires. The WTRU may switch the mode in accordance with a pre-configured schedule. After transition of the operation mode, the WTRU may send a message to the network indicating such mode switch. | 08-21-2014 |
20140286231 | METHODS AND APPARATUS FOR REORDERING DATA IN AN EVOLVED HIGH SPEED PACKET ACCESS SYSTEM - Method and apparatus for receiving high speed downlink shared channel (HS-DSCH) transmissions are disclosed. An HS-DSCH medium access control (MAC-ehs) entity receives MAC-ehs protocol data units (PDUs) via a high speed downlink shared channel (HS-DSCH) while in one of Cell_FACH, Cell_PCH, and URA_PCH states. The reordering PDUs included in the MAC-ehs PDUs may be sent to a next processing entity without performing reordering of the PDUs. A certain reordering queue may enter a suspend state upon occurrence of a triggering event and MAC-ehs PDUs distributed to the reordering queue in the suspend state may be forwarded to the next processing entity without performing reordering. MAC-ehs reset procedure may be extended for a certain transmission such that the MAC-ehs reset is performed after receiving a MAC-ehs PDU in a target cell. | 09-25-2014 |
20140307683 | METHOD AND APPARATUS FOR TERMINATING TRANSMISSION OF A MESSAGE IN AN ENHANCED RANDOM ACCESS CHANNEL - A method and an apparatus is provided for terminating an enhanced random access channel (E-RACH) message in an E-RACH transmission. Triggers for terminating the E-RACH message are provided. The actions upon termination of the E-RACH messages are provided to release enhanced dedicated channel (E-DCH) resources while in cell forward access channel (CELL_FACH) state or transition to cell dedicated channel (CELL_DCH) state. | 10-16-2014 |
20140314021 | METHOD AND APPARATUS FOR TERMINATING TRANSMISSION OF A MESSAGE IN AN ENHANCED RANDOM ACCESS CHANNEL - A method and an apparatus is provided for terminating an enhanced random access channel (E-RACH) message in an E-RACH transmission. Triggers for terminating the E-RACH message are provided. The actions upon termination of the E-RACH messages are provided to release enhanced dedicated channel (E-DCH) resources while in cell forward access channel (CELL_FACH) state or transition to cell dedicated channel (CELL_DCH) state. | 10-23-2014 |
20140334384 | METHOD AND APPARATUS FOR SUPPORTING SEGMENTATION OF PACKETS FOR UPLINK TRANSMISSION - A method and apparatus for segmenting medium access control (MAC) service data units (SDUs) creates enhanced MAC-es PDUs in the enhanced MAC-e/es sub-layer by concatenating MAC SDUs received from the logical channels. An enhanced transport format combination (E-TFC) selection entity controls the concatenation of MAC SDUs into enhanced MAC-es PDUs. When a MAC SDU is received that is too large to fit into a selected enhanced MAC-es PDU payload, a segmentation entity segments the MAC SDU such that the MAC SDU segment fills the remaining payload available in the selected enhanced MAC-es PDU. The enhanced MAC-es PDU is then assigned a transmission sequence number (TSN) and multiplexed with other enhanced MAC-es PDUs to create a single enhanced MAC-e PDU that is transmitted on the E-DCH in the next transmission time interval (TTI). A HARQ entity stores and, if necessary retransmits the enhanced MAC-e PDU when a transmission error occurs. | 11-13-2014 |
20150023177 | METHOD AND APPARATUS FOR PERFORMING DISCONTINUOUS RECEPTION AND/OR DISCONTINUOUS TRANSMISSION FOR A MULTI-CARRIER/MULTI-CELL OPERATION - Method and apparatus for multi-carrier/multi-cell discontinuous reception (DRX)/discontinuous transmission (DTX) operations and activation/deactivation of DRX/DTX are disclosed. A wireless transmit/receive unit (WTRU) may configure at least one state variable for controlling DRX, DTX or both on a group of cells. The WTRU may receive an order for DRX or DTX activation or deactivation. The WTRU may determine a setting for the state variable based on the order. The WTRU may activate or deactivate DRX or DTX based on the setting for the state variable. The group of cells may include all cells within the same frequency band, all cells in a particular frequency or group of frequencies, and all secondary cells associated with a primary cell. The primary cell may be an uplink (UL) or downlink (DL) primary cell. The secondary cells may be UL or DL secondary cells. The WTRU may apply common, group-specific or cell-specific DRX monitoring. | 01-22-2015 |
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 |
20150036655 | METHOD AND APPARATUS FOR FAST ASSISTIVE TRANSMISSION OPERATION - A method for use in a wireless transmit/receive unit (WTRU) for receiving data over physical downlink shared channels from different cells, monitoring physical downlink control channels of a first cell for downlink control information associated with the WTRU, and recovering data from the physical downlink control channel in response to the downlink control information. | 02-05-2015 |
20150036661 | WIRELESS COMMUNICATION METHODS AND COMPONENTS THAT IMPLEMENT HANDOFF IN WIRELESS LOCAL AREA NETWORKS - This invention relates to wireless local area networks, and particularly to the IEEE 802.11 family of standards. It consists of a method and apparatus that can be implemented in access points (APs) and subscriber wireless transmit/receive units (WTRUs), in order to allow an AP to initiate re-association of a WTRU to itself or a different AP. The invention improves the robustness of the network by enabling more efficient load balancing, congestion control, and roaming, without compromising the user experience. | 02-05-2015 |
20150049628 | METHOD AND APPARATUS FOR HIGH SPEED DOWNLINK PACKET ACCESS LINK ADAPTATION - A method of high speed downlink packet access (HSDPA) link adaptation, comprises receiving a channel quality measurement metric over a Measured Results on random access channel (RACH) information element (IE). The link is adapted based upon the received channel quality metric. | 02-19-2015 |
20150087287 | METHOD AND APPARATUS FOR SUPPORTING MACHINE-TYPE COMMUNICATIONS WITH A MOBILE-ORIGINATED-ONLY MODE - A method and apparatus for supporting machine-type communications (MTC) are disclosed. A wireless transmit/receive unit (WTRU) may configure itself to operate in a mobile-originated-only mode. The WTRU may perform no, or a subset of, radio resource control (RRC) idle and/or non-access stratum (NAS) idle/standby state procedures in the mobile-originated-only mode. For example, the WTRU may perform cell reselection but not paging monitoring in the mobile-originated-only mode. Alternatively, the WTRU may perform paging monitoring but not cell reselection and location update. The operation in the mobile-originated-only mode may be triggered explicitly or implicitly. For example, the WTRU may operate in the mobile-originated-only mode if an inactivity timer expires. The WTRU may switch the mode in accordance with a pre-configured schedule. After transition of the operation mode, the WTRU may send a message to the network indicating such mode switch. | 03-26-2015 |
20150117378 | METHOD AND APPARATUS FOR SIMULTANEOUSLY RECEIVING ON TWO CARRIERS AND PERFORMING DISCONTINUOUS TRANSMISSION AND RECEPTION IN DUAL CELL HIGH SPEED DOWNLINK PACKET ACCESS - A method and an apparatus for simultaneously receiving on two carriers and performing discontinuous transmission (DTX) and discontinuous reception (DRX) in dual cell high speed downlink packet access (DC-HSDPA) are disclosed. A wireless transmit/receive unit (WTRU) receives a message for activating DRX for at least one of an anchor carrier and a supplementary carrier and applies the same DRX pattern to the anchor carrier and the supplementary carrier upon reception of the message. The message may be received via a high speed shared control channel (HS-SCCH) order. The WTRU may activate or de-activate the supplementary carrier based on the physical layer signal. Upon activation of the supplementary carrier, the WTRU may apply the same DRX pattern on both the anchor carrier and the supplementary carrier. The WTRU may flush a hybrid automatic repeat request (HARQ) buffer associated with the supplementary carrier upon de-activation of the supplementary carrier. | 04-30-2015 |
20150156696 | METHOD AND APPARATUS FOR CELL UPDATE WHILE IN AN ENHANCED CELL_FACH STATE - A method and apparatus for cell update while in a Cell_FACH state are disclosed. After selecting a target cell, system information is read from the target cell including high speed downlink shared channel (HS-DSCH) common system information. A radio network temporary identity (RNTI) received in a source cell is cleared and a variable HS_DSCH_RECEPTION is set to TRUE. An HS-DSCH medium access control (MAC-hs) entity is configured based on the HS-DSCH common system information. High speed downlink packet access (HSDPA) transmission is then received in the target cell. A CELL UPDATE message is sent to notify of a cell change. The HSDPA transmission may be received using a common H-RNTI broadcast in the system information, a reserved H-RNTI as requested in a CELL UPDATE message, or a temporary identity which is a subset of a U-RNTI. The MAC-hs entity may be reset. | 06-04-2015 |
20150201353 | 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. | 07-16-2015 |
20150223179 | Method And Apparatus For Handling Uplink Transmissions using Multiple Uplink Carriers - A method and an apparatus for uplink transmission using multiple uplink carriers are disclosed. A wireless transmit/receive unit (WTRU) selects a dedicated channel medium access control (MAC-d) flow with highest priority data to be transmitted and performs uplink carrier selection and enhanced dedicated channel (E-DCH) transport format combination (E-TFC) restriction and selection to select a carrier among a plurality of carriers and select an E-TFC based on a maximum supported payload, a remaining scheduled grant payload of the selected carrier and a remaining non-scheduled grant payload. The WTRU then generates a medium access control (MAC) protocol data unit (PDU) for E-DCH transmission via the selected carrier based on the selected E-TFC. | 08-06-2015 |
20150229448 | MAC AND RLC ARCHITECTURE AND PROCEDURES TO ENABLE RECEPTION FROM MULTIPLE TRANSMISSION POINTS - A method for use in a wireless communication system for two-stage reordering of received protocol data units (PDUs). The method comprising receiving PDUs from Node-Bs, wherein each of the received PDUs has a transmission sequence number (TSN), reordering the received PDUs from Node-Bs using the TSN in a MAC layer in different reordering queues, delivering the received PDUs from reordering queues to one logical channel in the RLC layer, reordering the received PDUs in the RLC layer based on a sequence number (SN), starting a timer when at least a RLC PDU is missing based on SN of the RLC PDU, and transmitting a status report indicating a missing RLC PDU based on SN of the RLC PDU if the timer expires, wherein transmission of the status report is delayed if a RLC PDU is missing based on SN of the RLC PDU and the timer is running. | 08-13-2015 |
20150230132 | EFFICIENT L2 PROCESSING AND PROTOCOL DATA UNITS WIRELESS COMMUNICATIONS - Enhanced MAC-es PDUs are created by concatenating enhanced MAC-es service data units (SDUs) based on higher layer PDUs and segments thereof, where segmentation information is included in the enhanced MAC-es headers. An enhanced MAC-e header is generated for each enhanced MAC-es PDU to describe information about the enhanced MAC-es PDU. An enhanced MAC-e PDU is created by concatenating enhanced MAC-es PDUs and enhanced MAC-e headers. An enhanced MAC-es header may include a Transmit Sequence Number (TSN) field, a Segmentation Description (SD) field, length (L) fields to indicate the length of each enhanced MAC-es SDU and/or logical channel indicator (LCH-ID) fields. An enhanced MAC-e header may include one or more logical channel indicator (LCH-ID) fields for corresponding enhanced MAC-es PDUs or MAC-s SDUs and length (L) fields. | 08-13-2015 |
20150237528 | METHOD AND APPARATUS FOR CREATING AN ENHANCED MEDIUM ACCESS CONTROL PACKET DATA UNIT FOR ENHANCED TRANSPORT FORMAT COMBINATION SELECTION IN WIRELESS COMMUNICATIONS - Efficient enhanced transport format combination (E-TFC) selection methods and apparatus support flexible radio link control (RLC) packet data unit (PDU) size and medium access control (MAC) layer segmentation. Methods for filling an enhanced medium access control (MAC-e) packet data unit (PDU) with data from logical channels as part of E-TFC selection are provided. In one embodiment, the E-TFC selection algorithm employs a single request from the MAC layer to the RLC layer to request the number of bits it is allowed to send for a logical channel to create enhanced MAC-e PDUs. In another embodiment, the MAC entity performs multiple requests to the RLC entity. In another embodiment, the MAC entity makes a single request to the RLC entity to create one or more enhanced MAC-e PDUs of a set size. A technique is also provided for maintaining a guaranteed bit rate (GBR) for non-scheduled data flows with variable-length headers. | 08-20-2015 |
20150282007 | METHOD AND APPARATUS FOR GENERATING RADIO LINK CONTROL PROTOCOL DATA UNITS - A method and apparatus are used to generate radio link control (RLC) protocol data units (PDUs). A data request for a logical channel is received as part of an enhanced dedicated channel (E-DCH) transport format combination (E-TFC) selection procedure in a medium access control (MAC). Upon determining the data field size, an RLC PDU is generated such that it matches the requested data from the E-TFC selection. The size of the RLC PDU generated can be greater than or equal to the minimum configured RLC PDU size (if data is available) and less than or equal to the maximum RLC PDU size. The data is then transmitted in the RLC PDU in a current transmission time interval (TTI). | 10-01-2015 |