- Patent Title: Radio communication control method and radio communication system
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Application No.: US15111495Application Date: 2015-02-19
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Publication No.: US09647737B2Publication Date: 2017-05-09
- Inventor: Tatsunori Obara , Satoshi Suyama , Jiyun Shen , Yukihiko Okumura
- Applicant: NTT DOCOMO, INC.
- Applicant Address: JP Tokyo
- Assignee: NTT DOCOMO, INC.
- Current Assignee: NTT DOCOMO, INC.
- Current Assignee Address: JP Tokyo
- Agency: Osha Liang LLP
- Priority: JP2014-032011 20140221
- International Application: PCT/JP2015/054684 WO 20150219
- International Announcement: WO2015/125891 WO 20150827
- Main IPC: H04B7/02
- IPC: H04B7/02 ; H04B7/0456 ; H04B7/0408 ; H04B7/06 ; H04B7/08
Abstract:
BF weight vector determination is executed for each of M number of streams. In a first stage, by repeating switching of transmission BF weight (transmission beam) candidates in a small base station, a transmission BF weight vector with the best reception quality in a user apparatus UE is selected from among tried transmission BF weight vectors. In a second stage, by repeating switching of reception BF weight (reception beam) candidates in the user apparatus, a reception BF weight vector with the best reception quality in the user apparatus UE is selected from among tried reception BF weight vectors.
Public/Granted literature
- US20160359533A1 RADIO COMMUNICATION CONTROL METHOD AND RADIO COMMUNICATION SYSTEM Public/Granted day:2016-12-08
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