Invention Grant
US08555145B2 Systems and methods of encoding using a reduced codebook with adaptive resetting
有权
使用具有自适应重置的简化码本进行编码的系统和方法
- Patent Title: Systems and methods of encoding using a reduced codebook with adaptive resetting
- Patent Title (中): 使用具有自适应重置的简化码本进行编码的系统和方法
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Application No.: US12874707Application Date: 2010-09-02
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Publication No.: US08555145B2Publication Date: 2013-10-08
- Inventor: Hosein Nikopourdeilami , Jun Yuan , Mo-Han Fong , Mohammadhadi Baligh
- Applicant: Hosein Nikopourdeilami , Jun Yuan , Mo-Han Fong , Mohammadhadi Baligh
- 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: H03M13/00
- IPC: H03M13/00 ; H04Q1/20 ; H04L27/28 ; H04L23/02 ; H04L1/02 ; H04L27/00 ; H04B17/00 ; G06F11/00
Abstract:
To feedback MIMO channel conditions, a codeword from a codebook is selected. To reduce signalling, the codewords are organized into codeword subsets. The receiver signals an index of a codeword into a current codeword subset previously made known to the transmitter. The current codeword subset is adaptively selected based on a threshold criterion. For example, if the best codeword from the current codeword subset is not sufficiently similar to the best codeword in the full codebook, a switch in the codeword subset is made.
Public/Granted literature
- US20110164701A1 SYSTEMS AND METHODS OF ENCODING USING A REDUCED CODEBOOK WITH ADAPTIVE RESETTING Public/Granted day:2011-07-07
Information query
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