Invention Grant
US09048903B2 Method and apparatus for measuring and reporting a rank and a precoding matrix for multiple-input multiple-output communication
有权
用于测量和报告用于多输入多输出通信的秩和预编码矩阵的方法和装置
- Patent Title: Method and apparatus for measuring and reporting a rank and a precoding matrix for multiple-input multiple-output communication
- Patent Title (中): 用于测量和报告用于多输入多输出通信的秩和预编码矩阵的方法和装置
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Application No.: US13936954Application Date: 2013-07-08
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Publication No.: US09048903B2Publication Date: 2015-06-02
- Inventor: Kyle Jung-Lin Pan , Donald M. Grieco , Robert L. Olesen
- Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
- Applicant Address: US DE Wilmington
- Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
- Current Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
- Current Assignee Address: US DE Wilmington
- Agency: Condo Roccia Koptiw LLP
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04W24/02 ; H04L12/26 ; H04B7/04 ; H04B7/06 ; H04L1/00
Abstract:
A method and apparatus for measuring and reporting a rank and/or a precoding matrix for multiple-input multiple-output (MIMO) communication are disclosed. A metric indicating a channel condition is measured and a rank is selected based on the metric. The metric may be a signal-to-interference and noise ratio (SINR), throughput, a block error rate (BLER), system capacity, a sum rate, or the like. An SINR for each radio block group (RBG) for each rank is calculated. A data rate is calculated for each RBG based on the SINR for each rank. An overall rate for all RBGs is calculated for each rank. At least one rank is selected based on the overall rate. At least one precoding matrix may be selected jointly with or separately from the at least one rank.
Public/Granted literature
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