Abstract:
A user equipment comprises a transmitter and an adaptive modulation and coding controller. The transmitter is configured to transmit data over an air interface in a single transmission time interval with a first specified modulation and coding scheme, where the single transmission time interval has a plurality of transport block sets. In response to receiving a repeat request for retransmission of at least one particular transport block set, the transmitter retransmits the at least one of the particular transport block sets. The adaptive modulation and coding controller is configured to change the specified modulation and coding scheme to a second specified modulation and coding scheme, enabling a combining of a particular transport block set transmitted at the first specified modulation and coding scheme with a retransmitted version of the particular transport block set transmitted at the second specified modulation and coding scheme.
Abstract:
A medium access control-high speed (MAC-hs) comprises a hybrid automatic repeat request (H-ARQ) device configured to receive data blocks over a wideband-code division multiple access (W-CDMA) high speed-downlink shared channel (HS-DSCH). The H-ARQ device generates an acknowledgement (ACK) or negative acknowledgement (NACK) for each said data block received. Each received data block having a transmission sequence number. The H-ARQ device receives a new transmission instead of a pending retransmission at any time. At least one reordering device has an input configured to receive an output of the H-ARQ device and the at least one reordering device configured to reorder the received data blocks based on each received data block's transmission sequence number (TSN). Received data blocks are immediately forwarded for processing for higher layers when the received data blocks are received in sequence.
Abstract:
A method and apparatus for acknowledge mode data (AMD) re-segmentation are disclosed. An AMD protocol data unit (PDU) is generated from at least one RLC SDU. The AMD PDU size is within a flexible maximum AMD PDU size. The original AMD PDU is stored in a retransmission buffer, and transmitted. If transmission of the original AMD PDU fails and the original AMD PDU size is larger than an updated maximum AMD PDU size, the original AMD PDU is segmented to segmented AMD PDUs. If transmission of one of the segmented AMD PDUs fails, the original AMD PDU may be re-segmented to smaller size AMD PDUs.
Abstract:
A method and apparatus for acknowledge mode data (AMD) re-segmentation are disclosed. An AMD protocol data unit (PDU) is generated from at least one RLC SDU. The AMD PDU size is within a flexible maximum AMD PDU size. The original AMD PDU is stored in a retransmission buffer, and transmitted. If transmission of the original AMD PDU fails and the original AMD PDU size is larger than an updated maximum AMD PDU size, the original AMD PDU is segmented to segmented AMD PDUs. If transmission of one of the segmented AMD PDUs fails, the original AMD PDU may be re-segmented to smaller size AMD PDUs.
Abstract:
A method and apparatus for acknowledge mode data (AMD) re-segmentation are disclosed. An AMD protocol data unit (PDU) is generated from at least one RLC SDU. The AMD PDU size is within a flexible maximum AMD PDU size. The original AMD PDU is stored in a retransmission buffer, and transmitted. If transmission of the original AMD PDU fails and the original AMD PDU size is larger than an updated maximum AMD PDU size, the original AMD PDU is segmented to segmented AMD PDUs. If transmission of one of the segmented AMD PDUs fails, the original AMD PDU may be re-segmented to smaller size AMD PDUs.
Abstract:
A method and wireless transmit/receive unit (WTRU) for receiving a multimedia broadcast/multicast service (MBMS) data is disclosed. A WTRU receives MBMS data segments from a first MBMS transmitting source along with segmentation information. The WTRU receives MBMS data segments and segmentation information from a second MBMS transmitting source. The MBMS data segments from the first MBMS transmitting source and the MBMS data segments from the second MBMS transmitting source are received in different order. The WTRU reassembles the MBMS data segments based on the segmentation information received from the first MBMS transmitting source and the second MBMS transmitting source.
Abstract:
A method and apparatus is disclosed in which a user equipment (UE) receives and processes control information received on a first channel. In accordance with a particular embodiment, a use equipment (UI) having a user equipment processor coupled with user equipment circuitry includes means for receiving, via the user equipment circuitry, a wireless signal of a control channel; in which the wireless signal includes both (i) an N bit field and (ii) control information, the N bit field having been generated using the control information and having therein an N bit cyclic redundancy check (CRC) calculated using at least an N bit user equipment identity for the UE; and in which the UE further includes means for determining, via the user equipment circuitry, that the N bit CRC is correct using the N bit user equipment identity; and means for processing, via the user equipment circuitry, the control information upon the user equipment circuitry determining that the N bit CRC is correct.
Abstract:
A method and system for detecting radio link (RL) failures between a wireless transmit/receive unit (WTRU) and a Node-B are disclosed. When signaling radio bearers (SRBs) are supported by high speed uplink packet access (HSUPA), an RL failure is recognized based on detection of improper operation of at least one of an absolute grant channel (AGCH), a relative grant channel (RGCH), a hybrid-automatic repeat request (H-ARQ) information channel (HICH), an enhanced uplink dedicated physical control channel (E-DPCCH) and an enhanced uplink dedicated physical data channel (E-DPDCH). When SRBs are supported by high speed downlink packet access (HSDPA), an RL failure is recognized based on detection of improper operation of at least one of a high speed shared control channel (HS-SCCH), a high speed physical downlink shared channel (HS-PDSCH) and a high speed dedicated physical control channel (HS-DPCCH).
Abstract:
A radio resource control (RRC) message is received by a radio resource control (RRC) device of a user equipment (UE). The RRC message notifies the FDD UE of a high speed downlink shared channel (HS-DSCH) inter-Node B cell change. A reordering buffers of a medium access controller-high speed (MAC-hs) is flushed in response to the receiving the RRC message. A status report is generated for each acknowledge mode (AM) RLC instance mapped to the HS-DSCH by a radio link control (RLC) device after the MAC-hs flushes the reordering buffer. Each status report indicates missing AM RLC packet data units (PDUs). The RRC device sends a “TRANSPORT CHANNEL RECONFIGURATION COMPLETE” message on a DCCH after the RLC device generates each status report.
Abstract:
A method and apparatus for acknowledge mode data (AMD) re-segmentation are disclosed. An AMD protocol data unit (PDU) is generated from at least one RLC SDU. The AMD PDU size is within a flexible maximum AMD PDU size. The original AMD PDU is stored in a retransmission buffer, and transmitted. If transmission of the original AMD PDU fails and the original AMD PDU size is larger than an updated maximum AMD PDU size, the original AMD PDU is segmented to segmented AMD PDUs. If transmission of one of the segmented AMD PDUs fails, the original AMD PDU may be re-segmented to smaller size AMD PDUs.