Patent ID: 9106290
Filing Date: 2015-08-11
Classification: H04B,H04L

Abstract:
1. A method for sending channel state information, comprising: setting, by a base station, a number of bits used for quantizing a relative received power value, wherein the relative received power value is a difference between a received power of an antenna port of a UE (user equipment) measurement set and a minimum received power of all antenna ports of the UE measurement set; determining, by the base station, a received power codebook according to the number of bits and the UE measurement set, wherein the received power codebook comprises multiple received power codebook elements, and each received power codebook element corresponds to a received power codebook index value; sending, by the base station, the number of bits to the UE, so that the UE determines the received power codebook according to the number of bits and the UE measurement set; receiving, by the base station, a first received power codebook index value sent by the UE, wherein the first received power codebook index value is selected from multiple received power codebook index values by the UE; determining, by the base station, a first received power codebook element corresponding to the first received power codebook index value; and processing, by the base station, a signal according to the first received power codebook element.