CPC H04L 5/0048 (2013.01) [H04B 7/0417 (2013.01)] | 18 Claims |
1. An information feedback method, comprising:
receiving, by a first terminal, N groups of reference signals sent by a second terminal, N being a positive integer, wherein transmission resources of the reference signals of different groups are in a pattern of time division;
selecting, by the first terminal, a target reference signal based on the received N groups of reference signals; and
sending, by the first terminal, index information of the target reference signal to the second terminal, wherein the index information is carried in a feedback channel;
wherein the feedback channel further comprises at least one of the following: identification information of the first terminal, identification information of the second terminal.
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