Patent ID: 9537549
Date: 2017-01-03
CPC Classifications: H04B,H04L

Claim:
1. A data sending method, comprising: obtaining, according to a channel matrix of each of paired users, a precoding matrix of the paired users, wherein the paired users are a set of multiple users sharing the same time-frequency resource and receiving and sending data on the same time-frequency resource simultaneously; performing layer mapping on service data of the paired users to obtain layered service data; precoding the layered service data by using the precoding matrix to obtain precoded output data; mapping the precoded output data and a common pilot sequence to a port of an antenna array, wherein the common pilot sequence is the same pilot signal sequence sent by a base station on a specific time-frequency resource to each user in the paired users; and sending the data mapped to the port of the antenna array to each user by using the antenna array.