RETRANSMISSION METHOD FOR TIME DIVISION DUPLEXING SELF-ADAPTIVE FRAME STRUCTURE, AND NETWORK SIDE DEVICE

摘要

A retransmission method for a time division duplexing self-adaptive frame structure, and a network side device relate to a technique of dynamically allocating uplink and downlink sub-frames in an LTE-advance (3GPP Release11) TDD communication system. The method comprises: during a procedure of transmitting a TDD self-adaptive frame, for an uplink sub-frame, if a frame structure having an RTT period being 10 ms and corresponding to PHICH and PUSCH of the uplink sub-frame is found in 7 types of defined frame structures, sending PHICH data on a corresponding downlink sub-frame in the found frame structure, and sending retransmission data on the corresponding uplink sub-frame in the found frame structure. The solution ensures HARQ compatibility of an uplink data channel of R10UE. In addition, A/N feedback of the PDSCH is configured according to the uplink A/N resolution, thereby improving retransmission performance.