Generalized codebook design method for limited feedback systems

Patent metadata

Field	Value
Publication number	US-9020518-B2
Application number	US-201414147920-A
Country	US
Kind code	B2
Filing date	Jan 6, 2014
Priority date	Sep 28, 2006
Publication date	Apr 28, 2015
Grant date	Apr 28, 2015

Abstract

In a closed-loop wireless communication system, a codebook-based feedback mechanism is provided where each codeword indicates a particular profile to be used to provide a target performance measure (e.g., bit error rate or spectral efficiency) for the transmission channel. This may be accomplished by using a multi-stage quantization process to construct the codewords as a plurality of transmission parameters specifying a MIMO transmission scheme, precoding vector or matrix, power allocation in space/time/frequency, modulation and channel code.

First claim

What is claimed is:

1. A receiver for a wireless communication system, comprising:
one or more antennas for receiving one or more signals over a transmission channel from a transmitting device;
a feedback codebook designed using a multi-stage quantization, which includes an eigenvector quantization stage and an eigenvalue quantization stage, and configured to store a plurality of indexed multi-parameter channel profiles, each of which has a plurality of parameters designed to pr…

Assignees

• Apple Inc

Inventors

• Huang Kaibin
• Kotecha Jayesh H

Classifications

• H04B7/0639

  Electricity · mapped topic

• H04B7/0634 Primary

  Electricity · mapped topic

• H04L1/0029

  Electricity · mapped topic

• H04B7/0417 Primary

  Electricity · mapped topic

• H04B7/0663

  Electricity · mapped topic