Invention Grant
US09414251B2 Method for determining multi-user channel quality in mobile communication system, and user terminal and base station therefor
有权
用于确定移动通信系统中的多用户信道质量的方法，以及用户终端和基站
- Patent Title: Method for determining multi-user channel quality in mobile communication system, and user terminal and base station therefor
- Patent Title (中): 用于确定移动通信系统中的多用户信道质量的方法，以及用户终端和基站
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Application No.: US14112272Application Date: 2012-04-20
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Publication No.: US09414251B2Publication Date: 2016-08-09
- Inventor: Satoshi Nagata , Yang Song , Xiaoming She , Lan Chen
- Applicant: Satoshi Nagata , Yang Song , Xiaoming She , Lan Chen
- Applicant Address: JP Tokyo
- Assignee: NTT DOCOMO, Inc.
- Current Assignee: NTT DOCOMO, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Osha Liang LLP
- Priority: CN201110111665 20110422
- International Application: PCT/JP2012/060765 WO 20120420
- International Announcement: WO2012/144621 WO 20121026
- Main IPC: H04J1/16
- IPC: H04J1/16 ; H04W24/10 ; H04B7/04 ; H04L1/00 ; H04B17/24 ; H04B7/06
Abstract:
Provided are a method for determining multi-user channel quality in a mobile communication system, a user terminal and a base station of the present invention. The method includes: in each user terminal, calculating the MU CQIs based on a first feedback template notified from a base station that has control over the user terminal or a second feedback template set by the user terminal and feeding the MU CQIs back to the base station. In the first feedback template or the second feedback template, a feedback ratio of MU CQIs for a plurality of hypothetical interference numbers k are defined, k being an integer larger than 0 and smaller than a maximum number of users schedulable by the base station. According to the present invention, it is possible to improve the accuracy in multi-user MIMO scheduling.
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