Patent ID: 8681667

Claim:
A method for allocating physical hybrid ARQ indicator channels in a time division duplex system, the method including: sending, in the time division duplex system, indication information corresponding to multiple uplink sub-frames in a same downlink sub-frame, through an index of a physical resource block where uplink data resides as well as an index of an uplink sub-frame where the uplink data resides, determining, via at least one computer processor of the time division duplex system, an index of a physical hybrid ARQ indicator channel group where a physical hybrid ARQ indicator channel in an downlink sub-frame resides and an intra-group index of the physical hybrid ARQ indicator channel in the physical hybrid ARQ indicator channel group according to an indexing rule, and further determining an index of the physical hybrid ARQ indicator channel by using the index of the physical hybrid ARQ indicator channel group and the intra-group index; and wherein the indexing rule comprises one of the following: first indexing according to uplink sub-frame numbers and then indexing according to physical resource blocks, or first indexing according to physical resource blocks and then indexing according to uplink sub-frame numbers.