Invention Grant
US08494033B2 Methods providing precoder feedback using multiple precoder indices and related communications devices and systems
有权
使用多个预编码器索引和相关通信设备和系统提供预编码器反馈的方法
- Patent Title: Methods providing precoder feedback using multiple precoder indices and related communications devices and systems
- Patent Title (中): 使用多个预编码器索引和相关通信设备和系统提供预编码器反馈的方法
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Application No.: US12973096Application Date: 2010-12-20
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Publication No.: US08494033B2Publication Date: 2013-07-23
- Inventor: George Jöngren , Svante Bergman , David Hammarwall
- Applicant: George Jöngren , Svante Bergman , David Hammarwall
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget L M Ericsson (publ)
- Current Assignee: Telefonaktiebolaget L M Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Myers Bigel Sibley & Sajovec, P.A.
- Main IPC: H04L25/49
- IPC: H04L25/49
Abstract:
Data may be transmitted from a first communications device using multiple antennas to a second communications device based on precoder feedback defining a grid of transmission beams. A first precoder index may be received from the second communications device, and a second precoder index may be received from the second communications device. At least one symbol stream may be processed based at least in part on the first and second precoder indices to generate antenna signals for respective antenna elements of the multiple antennas, and the antenna signals may be transmitted over the multiple antennas to the communications device. Related base stations and user equipment are also discussed.
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