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1. (WO2018076305) INFORMATION TRANSMISSION METHOD, ACCESS NETWORK DEVICE, AND TERMINAL DEVICE

Pub. No.:    WO/2018/076305    International Application No.:    PCT/CN2016/103857
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Sat Oct 29 01:59:59 CEST 2016
IPC: H04B 7/04
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: SUN, Xiaodong
孙晓东
STIRLING-GALLACHER, Richard
斯特林-加拉赫理查德
XU, Kai
徐凯
SUN, Yanliang
孙彦良
Title: INFORMATION TRANSMISSION METHOD, ACCESS NETWORK DEVICE, AND TERMINAL DEVICE
Abstract:
The present invention provides an information transmission method, an access network device, and a terminal device. The method comprises: an access network device sends CSI-RS configuration parameters to a UE; after the access network device sends CSI-RS signals at each level to the UE according to the number of CSI-RS signals at each level, the access network device receives beamforming parameters at each level, which are reported by the UE for the CSI-RS signals at each level. The accuracy of a beam direction reported to the access network device is improved.