Title:
デュアルストリームビームフォーミング方法及び装置
Document Type and Number:
Japanese Patent JP6665101
Kind Code:
B2
Abstract:
A method and device for dual layer beamforming are disclosed to solve the problems of bad beam directivity and poor beamforming effect in current methods for beamforming wherein the method comprises: receiving sounding reference signal (SRS) sent by the terminal wherein the broadband occupied when sending the SRS is divided into a plurality of sub-bands by the terminal; determining the broadband beamforming vector corresponding to the broadband and the sub-band beamforming vector corresponding to each sub-band respectively according to the SRS; determining two polarized-direction beamforming vectors corresponding to each sub-band respectively according to the broadband beamforming vector corresponding to the broadband or the sub-band beamforming vector corresponding to each sub-band; and directed to each sub-band, adopting the two polarized-direction beamforming vectors corresponding to the sub-band for dual layer beamforming. The method for dual layer beamforming of the present application has stronger beam directivity and better beamforming effect.
Inventors:
Wang Ki
Tsang, Kyao Yuan
Tsang, Kyao Yuan
Application Number:
JP2016552523A
Publication Date:
March 13, 2020
Filing Date:
February 09, 2015
Export Citation:
Assignee:
DATANG MOBILE COMMUNICATIONS EQUIPMENT CO.,LTD
International Classes:
H04J11/00; H04B7/10; H04L27/26
Domestic Patent References:
| JP2014504068A |
Foreign References:
| CN103326765A | ||||
| WO2012068716A1 |
Other References:
Motorola,Impact of Polarization on Dual Layer Beaamforming Performance,3GPP TSG RAN1 #58B R1-093979,2009年10月 6日,pp.1-2
Qiunbin Gao et al.,Utilization of channel reciprocity in advanced MIMO system,5th International ICST Conference on Communications and Networking in China(CHINACOM)2010,2010年 8月
Qiunbin Gao et al.,Utilization of channel reciprocity in advanced MIMO system,5th International ICST Conference on Communications and Networking in China(CHINACOM)2010,2010年 8月
Attorney, Agent or Firm:
Kazuya Sekiguchi