Invention Grant
- Patent Title: System and method for hierarchal beamforming and rank adaptation for hybrid antenna architecture
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Application No.: US16422637Application Date: 2019-05-24
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Publication No.: US10771142B2Publication Date: 2020-09-08
- Inventor: Diana Maamari , Hao Zhou , Qian Cheng , Weimin Xiao
- Applicant: Futurewei Technologies, Inc.
- Applicant Address: US TX Plano
- Assignee: Futurewei Technologies, Inc.
- Current Assignee: Futurewei Technologies, Inc.
- Current Assignee Address: US TX Plano
- Agency: Slater Matsil, LLP
- Main IPC: H04L1/02
- IPC: H04L1/02 ; H04B7/06 ; H04B7/08 ; H04B7/04 ; H04W24/10

Abstract:
An embodiment method for beam-related information and channel state information feedback includes receiving first analog beamformed reference signals; transmitting a first report indicating a set of selected analog beamformed reference signals and a transmission rank that jointly maximize a first performance criterion for subsequent transmissions by a transmitter that transmitted the first analog beamformed reference signals; receiving second analog beamformed reference signals maximized in accordance with the set of selected analog beamformed reference signals and the transmission rank; and transmitting a second report, in accordance with the second analog beamformed reference signals, indicating a channel quality indicator and a precoding matrix indicator that maximize a second performance criterion for subsequent transmissions by the transmitter that transmitted the first analog beamformed reference signals and the second analog beamformed reference signals.
Public/Granted literature
- US20190280753A1 System and Method for Hierarchal Beamforming and Rank Adaptation for Hybrid Antenna Architecture Public/Granted day:2019-09-12
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