Invention Grant
- Patent Title: Adaptive compression of channel feedback based on second order channel statistics
- Patent Title (中): 基于二阶信道统计的信道反馈的自适应压缩
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Application No.: US11777671Application Date: 2007-07-13
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Publication No.: US08213368B2Publication Date: 2012-07-03
- Inventor: Dennis Hui , Leonid Krasny
- Applicant: Dennis Hui , Leonid Krasny
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Coats & Bennett, P.L.L.C.
- Main IPC: H04W4/00
- IPC: H04W4/00
Abstract:
A method of variable rate vector quantization reduces the amount of channel state feedback. Channel coefficients of a communication channel are determined and second order statistics (e.g., variances) of the channel taps are computed). Bit allocation for the channel taps are determined based on the coefficients statistics. The channel taps are individually quantized at rates determined based on said bit allocations.
Public/Granted literature
- US20090016425A1 Adaptive Compression of Channel Feedback Based on Second Order Channel Statistics Public/Granted day:2009-01-15
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