Patent ID: 9647739
Date: 2017-05-09
CPC Classifications: H04B,H04L

Claim:
1. A method for acquiring channel information, comprising: acquiring, by a receiving side, indexes L of M antennae which send reference signals in N antennae of a sending side, wherein the M is less than the N; acquiring channel information Y between the M antennae and a receiving antenna of the receiving side according to received data at a resource location of a reference signal and reference data, wherein the reference data is transmitted data at the resource location of a reference signal of each antenna in the M antennae of the receiving side; acquiring a unitary matrix W with a dimension of N×N; and determining an estimate S′ of channel information S between the N antennae of the sending side and the receiving antenna of the receiving side by virtue of the indexes L, the unitary matrix W and the channel information Y.