Invention Grant
- Patent Title: Closed loop MIMO systems and methods
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Application No.: US15486060Application Date: 2017-04-12
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Publication No.: US10554272B2Publication Date: 2020-02-04
- Inventor: Wen Tong , Ming Jia , Jianglei Ma , Peiying Zhu , Hua Xu , Dong-Sheng Yu , Hang Zhang , Mo-Han Fong
- Applicant: APPLE INC.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Fay Kaplun & Marcin, LLP
- Main IPC: H04B7/0456
- IPC: H04B7/0456 ; H04B7/06 ; H04L5/00 ; H04W48/08 ; H04B7/0413 ; H04W72/04 ; H04L5/02 ; H04W72/08 ; H04W74/06 ; H04L27/26
Abstract:
Systems and methods for closed loop MIMO (multiple input and multiple output) wireless communication are provided. Various transmit formats including spatial multiplexing and STTD are defined in which vector or matrix weighting is employed using information fed back from receivers. The feedback information may include channel matrix or SVD-based feedback.
Public/Granted literature
- US20170222702A1 CLOSED LOOP MIMO SYSTEMS AND METHODS Public/Granted day:2017-08-03
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