Patent ID: 9590788
Date: 2017-03-07
CPC Classifications: H04B,H04L,H04W

Claim:
1. A method for feeding back information, comprising: measuring channel quality information of a first link between each coordinated transmitting node in a coordinated transmitting node set and a terminal; taking the channel quality information of the first link and a channel rank indication value corresponding to the first link as parameters of a spectral efficiency calculation function, and obtaining a first spectral efficiency value corresponding to the first link; taking a second spectral efficiency value corresponding to a second link between a current primary service transmitting node and the terminal and the first spectral efficiency value as parameters of a selection criterion function, and when a value of the selection criterion function is less than or equal to a preconfigured comparison threshold value, selecting a corresponding coordinated transmitting node as a preferred coordinated transmitting node; and sending information of the preferred coordinated transmitting node to a transmitting end for selection.