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1. (WO2018077119) WEIGHTED SOUNDING SIGNAL-BASED METHOD AND DEVICE FOR BEAMFORMING TRANSMISSION

Pub. No.:    WO/2018/077119    International Application No.:    PCT/CN2017/107079
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Sat Oct 21 01:59:59 CEST 2017
IPC: H04B 7/04
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: XIA, Xin
夏欣
LIU, Yun
刘云
TIAN, Yuan
田园
GUAN, Lu
官鹭
Title: WEIGHTED SOUNDING SIGNAL-BASED METHOD AND DEVICE FOR BEAMFORMING TRANSMISSION
Abstract:
Disclosed is a weighted sounding signal-based method for beamforming transmission. The method comprises the following steps: when a user equipment determines that a beamforming (BF) weighted mode needs to be employed to transmit a sounding reference signal (SRS), the user equipment calculates, on the basis of downlink channel information, a BF weighted vector or matrix for SRS transmission; the user equipment weightedly transmits the SRS to a base station by means of the BF weighted vector or matrix. The present application has the advantages of increased SRS channel coverage range, increased channel estimation precision, and low complexity in BF weight calculation for base station downlink transmission.