METHOD FOR DETERMINING CANDIDATE LINE-OF-SIGHT PATH, AND WIRELESS LOCAL AREA NETWORK DEVICE

Title:

METHOD FOR DETERMINING CANDIDATE LINE-OF-SIGHT PATH, AND WIRELESS LOCAL AREA NETWORK DEVICE

Document Type and Number:

WIPO Patent Application WO/2018/121437

Kind Code:

A1

Abstract:

Disclosed are a method for determining a candidate line-of-sight path, and a wireless local area network device. In the method, a wireless local area network device receives a signal, which is wireless signals transmitted by means of multiple paths from a terminal to be recognized. Each wireless signal comprises a first training sequence, and the signal comprises a superposition of multiple first training sequences transmitted by means of the multiple paths. The wireless local area network device matches the signal with a second training sequence to obtain time points at which the multiple first training sequences transmitted by means of the multiple paths are received, the second training sequence being information stored by the wireless local area network device, and the first training sequence having the same value as the second training sequence. The wireless local area network device determines the path of a wireless signal which is received first as a candidate line-of-sight path. Only the angle of a line-of-sight path is estimated, and thus, the amount of calculation is reduced, the positioning delay is effectively shortened, and the occupation of air interface resources is also reduced.

Inventors:

PAN CHUN (CN)
LANG SONGPING (CN)
LIU SHENG (CN)

Application Number:

PCT/CN2017/118018

Publication Date:

July 05, 2018

Filing Date:

December 22, 2017

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

H04W40/02; G01S3/14; G01S5/02; H04W84/12; H04W64/00

Foreign References:

CN103931249A	2014-07-16
CN101075999A	2007-11-21
US7391368B1	2008-06-24
CN1470885A	2004-01-28
CN201611219604A	2016-12-26
CN201611219561A	2016-12-26

Other References: