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1. (WO2013120429) AERIAL CALIBRATION METHOD, SYSTEM AND DEVICE

Pub. No.:    WO/2013/120429    International Application No.:    PCT/CN2013/071451
Publication Date: Fri Aug 23 01:59:59 CEST 2013 International Filing Date: Thu Feb 07 00:59:59 CET 2013
IPC: H04B 7/04
Applicants: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
电信科学技术研究院
Inventors: GAO, Qiubin
高秋彬
ZHANG, Ranran
张然然
Title: AERIAL CALIBRATION METHOD, SYSTEM AND DEVICE
Abstract:
An embodiment of the present invention relates to the technical field of wireless communications, in particular to an aerial calibration method, system and device. In the prior art, an air interface calibration method involving a user equipment (UE) requires the UE to feed back a channel coefficient, and a channel coefficient direct quantification method occupies a great deal of uplink overhead and reduces system efficiency. The present invention solves the above problem. The method in the embodiment of the present invention comprises: the UE measures a downlink channel and determines a downlink channel matrix; the UE determines a first weighting matrix for aerial calibration according to the downlink channel matrix; the UE notifies a network side of the determined first weighting matrix. In the embodiment of the present invention, a UE decomposes the characteristic value of the downlink channel matrix, or reports the identifier corresponding to the first weighting matrix to the network side device, thus reducing the occupied uplink overhead and improving system efficiency.