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1. (WO2018177183) METHOD AND DEVICE FOR ACQUIRING AND FEEDING BACK TRANSMISSION BEAM INFORMATION

Pub. No.:    WO/2018/177183    International Application No.:    PCT/CN2018/079889
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Thu Mar 22 00:59:59 CET 2018
IPC: H04B 7/06
Applicants: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
电信科学技术研究院有限公司
Inventors: GAO, Qiubin
高秋彬
CHEN, Runhua
陈润华
RAKESH, Tamrakar
拉盖施
Title: METHOD AND DEVICE FOR ACQUIRING AND FEEDING BACK TRANSMISSION BEAM INFORMATION
Abstract:
Disclosed in the present invention are a method and device for acquiring and feeding back transmission beam information, comprising: a base station transmits, to a terminal, reference signals and information related to reference signal set division by using downlink transmission beams, wherein the base station transmits a reference signal for each downlink transmission beam, the reference signal of each beam is issued after being formed by using a beam forming weight corresponding to the beam, and the reference signals transmitted using the downlink transmission beams from the same beam group are divided into a reference signal set; the terminal selects Q reference signals from the received reference signals according to the reception quality and according to the information related to reference signal set division, selects a downlink transmission beam combination, and reports to the base station; and the base station determines a downlink transmission beam for transmitting data to the terminal according to a proposal. The present invention may enable the terminal and the base station to obtain more accurate beam combination information and support multi-beam transmission.