Title:
BEAM TRAINING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2017/107593
Kind Code:
A1
Abstract:
Disclosed is a beam training method, which is applied in a user terminal. The method comprises: receiving a beam training pilot frequency transmitted by a base station, wherein an antenna weight vector (AWV) transmitting a detection beam and corresponding to the beam training pilot frequency is known to the user terminal; estimating, according to the reception of the beam training pilot frequency, a channel response under different detection beams, recognizing a key path with an optimal reception from a time domain and determining a combination of an optimal directional transmission beam and an optimal directional receiving beam from a pre-set directional transmission codebook according to the recognized key path; and feeding back information about the optimal directional transmission beam to the base station. By means of the present invention, beam training efficiency can be improved and beam training overhead can be reduced.
Inventors:
GAO BO (CN)
YUAN YIFEI (CN)
WANG XINHUI (CN)
YUAN YIFEI (CN)
WANG XINHUI (CN)
Application Number:
PCT/CN2016/099370
Publication Date:
June 29, 2017
Filing Date:
September 19, 2016
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H04B7/04; H04B7/06; H04B7/08
Foreign References:
| CN102412881A | 2012-04-11 | |||
| CN102468879A | 2012-05-23 | |||
| CN101563860A | 2009-10-21 | |||
| US8184052B1 | 2012-05-22 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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