Title:
METHOD, APPARATUS, AND SYSTEM FOR ACQUIRING DATA TRANSMISSION TIME
Document Type and Number:
WIPO Patent Application WO/2021/052404
Kind Code:
A1
Abstract:
Disclosed in the embodiments of the present application are a method, an apparatus, and a system for acquiring data transmission time, relating to the field of communication. The method comprises: a first device sends first packets to a second device and acquires a first sending timestamp of the first packets; the first device receives second packets corresponding to the first packets sent by the second device and acquires a first receiving timestamp of the second packets; on the basis of the timing frequency of the second device, the first device calculates a second receiving timestamp of the second device receiving the first packets and a second sending timestamp of the second device sending the second packets; and, on the basis of the first sending timestamp, the first receiving timestamp, the second sending timestamp, and the second receiving timestamp, the first device calculates the data transmission time between the first device and the second device. The present application can reduce costs.
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Inventors:
ZHANG XIQUAN (CN)
GUO JUN (CN)
ZHANG WEIXIAN (CN)
GUO JUN (CN)
ZHANG WEIXIAN (CN)
Application Number:
PCT/CN2020/115833
Publication Date:
March 25, 2021
Filing Date:
September 17, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B3/46
Domestic Patent References:
| WO2006020002A2 | 2006-02-23 |
Foreign References:
| CN109660281A | 2019-04-19 | |||
| CN102308180A | 2012-01-04 | |||
| CN109257243A | 2019-01-22 | |||
| CN101083523A | 2007-12-05 | |||
| US20090225743A1 | 2009-09-10 | |||
| CN201910875786A | 2019-09-17 |
Other References:
See also references of EP 4024720A4
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