METHOD FOR IMPLEMENTING HARQ FEEDBACK, AND METHOD AND DEVICE FOR ALLOCATING UPLINK SUBFRAME

摘要

Disclosed are a method for implementing HARQ feedback, and a method and device for allocating an uplink subframe. The method is: determining a TDD uplink/downlink reference configuration used for FDD PDSCH HARQ feedback, and allocating, according to the number of uplink subframes indicated by the TDD uplink/downlink reference configuration in a radio frame, an FDD downlink subframe corresponding to ACK/NACK information borne by an uplink subframe indicated by the TDD uplink/downlink reference configuration to the uplink subframe, so that numbers of FDD downlink subframes corresponding to ACK/NACK information borne by the uplink subframes indicated by the TDD uplink/downlink reference configuration are approximately equal. In this way, ACK/NACK information corresponding to downlink data can be timely and accurately fed back, so as to perform accurate data retransmission, thereby effectively ensuring the system performance.

主权项

1. A method for allocating sub-frames for a Hybrid Automatic Repeat Request, HARQ, comprising:
choosing a Time Division Duplex, TDD, uplink and downlink reference configuration used to determine an HARQ feedback timing for Physical Downlink Shared Channel, PDSCH, of a Frequency Division Duplex, FDD, downlink carrier; and allocating FDD downlink sub-frames to uplink sub-frames indicated by the TDD uplink and downlink reference configuration, according to number of the uplink sub-frames in a radio frame, so that numbers of FDD downlink sub-frames corresponding to respective uplink sub-frames indicated by the TDD uplink and downlink reference configuration are substantially equal, wherein Acknowledgement/Negative Acknowledgement, ACK/NACK, information corresponding to the FDD downlink sub-frames is carried in corresponding allocated uplink sub-frame.