Invention Grant
- Patent Title: Feedback scheduling to reduce feedback rates in MIMO systems
- Patent Title (中): 反馈调度以减少MIMO系统中的反馈速率
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Application No.: US14792422Application Date: 2015-07-06
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Publication No.: US09590710B2Publication Date: 2017-03-07
- Inventor: Jayesh H. Kotecha , Kaibin Huang
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Main IPC: H04B7/04
- IPC: H04B7/04 ; H04B7/06 ; H04L12/26 ; H04W72/04 ; H04L5/00 ; H04L25/03
Abstract:
In a closed-loop wireless communication system, a codebook-based feedback control mechanism is provided where feedback from each of a plurality of receivers is scheduled to control the feedback so that the receiving devices do not needlessly feed back precoding information to the transmitting device. The feedback may be controlled by establishing and distributing a schedule to control when each receiver feeds back precoding information, or by establishing and distributing a metric-based feedback threshold that must be satisfied before feedback is permitted.
Public/Granted literature
- US20150311965A1 FEEDBACK SCHEDULING TO REDUCE FEEDBACK RATES IN MIMO SYSTEMS Public/Granted day:2015-10-29
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