Title:
SIGNAL PROCESSING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/122025
Kind Code:
A1
Abstract:
Disclosed in the present application are a signal processing method and apparatus. The method comprises: a sending end device generates a PPDU, the PPDU comprising a preamble, the preamble comprising an LTF, and the LTF comprising a plurality of LTF symbols that can be used for carrying a sequence obtained according to a first matrix, and then the sending end device sends the PPDU; correspondingly, a receiving end device receives the PPDU, and then processes, according to the first matrix, a signal received from the plurality of LTF symbols. The first matrix is a Pn×n matrix, or the first matrix is obtained according to the Pn×n matrix, and formula I, I being an identity matrix; the Pn×n matrix comprises n rows and n columns; a matrix is a transpose matrix of the Pn×n matrix, n being an integer greater than 8, and k being used for representing the k-th sub-carrier in each of the plurality of LTF symbols. The method provided in the present application can achieve channel estimation of 8 or more spatial streams.
Inventors:
LIU CHENCHEN (CN)
GONG BO (CN)
GAN MING (CN)
GONG BO (CN)
GAN MING (CN)
Application Number:
PCT/CN2021/137192
Publication Date:
June 16, 2022
Filing Date:
December 10, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L25/02
Domestic Patent References:
| WO2019231293A1 | 2019-12-05 |
Foreign References:
| CN107210987A | 2017-09-26 | |||
| US9596715B1 | 2017-03-14 | |||
| US20200145157A1 | 2020-05-07 | |||
| CN202011453555A | 2020-12-11 |
Other References:
JIANG, YANXIANG ET AL.: "Frequency Offset Estimation and Training Sequence Design for MIMO OFDM", IEEE TRANSACTION ON WIRELESS COMMUNICATIONS, vol. 7, no. 4, 30 April 2008 (2008-04-30), XP011226314, DOI: 10.1109/TWC.2008.060846
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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