Method and system for supporting multiple hybrid automatic repeat request processes per transmission time interval

摘要

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).

主权项

1. A wireless transmit/receive unit (WTRU) comprising:
circuitry configured to receive a long term evolution (LTE) physical layer subframe over an orthogonal frequency division multiplexing (OFDM) signal that includes a plurality of OFDM symbols, each OFDM symbol comprising a plurality of frequency sub-carriers, wherein the LTE physical layer subframe includes a data part and an associated control part, and reference signals interspersed on sub-carriers among the control part and the data part; wherein the control part includes at least a first OFDM symbol of the plurality of OFDM symbols and carries control information for each transport block (TB) of a plurality of TBs; wherein the control information includes for each TB a modulation and coding scheme (MCS) and HARQ information; wherein the HARQ information for each TB includes a redundancy version; wherein the data part includes other OFDM symbols of the plurality of OFDM symbols and carries the plurality of TBs and a cyclic redundancy check (CRC) for each TB; and circuitry configured to utilize the control information to process the plurality of TBs.