Title:
SYSTEM AND METHOD FOR TRELLIS CODED QUANTIZATION BASED CHANNEL FEEDBACK
Document Type and Number:
WIPO Patent Application WO/2017/041463
Kind Code:
A1
Abstract:
A method and apparatus for feeding back channel information from a first device to a second device in a wireless communication system are provided. The first device estimates channel parameters based on a signal received from the second device, and determines a set of angle parameters indicative of an angle representation of a V matrix, which is the right singular matrix of a singular value decomposition of an estimated channel matrix H. The angle parameters can be derived according to a Givens rotation method or Cosine-Sine decomposition. The first device applies a Trellis Coded Quantization (TCQ) scheme to map the angle parameters to a trellis. A Viterbi algorithm applied to the trellis generates quantized angle parameters which are transmitted to the second device.
Inventors:
SUH JUNG HOON (CA)
ABOUL-MAGD OSAMA (CA)
ABOUL-MAGD OSAMA (CA)
Application Number:
PCT/CN2016/076094
Publication Date:
March 16, 2017
Filing Date:
March 10, 2016
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W24/00
Domestic Patent References:
| WO2015010563A2 | 2015-01-29 |
Foreign References:
| CN101217304A | 2008-07-09 | |||
| US20150124894A1 | 2015-05-07 | |||
| CN101262310A | 2008-09-10 |
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