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Title:
WIRELESS CENTER DEVICE FOR DELAY MEASUREMENT, WIRELESS DEVICE, AND WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/253667
Kind Code:
A1
Abstract:
Disclosed are a wireless center device for delay measurement, a wireless device, and a wireless communication system, used for reducing a measurement error, accurately measuring a delay control amount, and realizing delay compensation for a service signal, thereby realizing clock synchronization. The wireless center device in the present application comprises: a delay measurement module used for obtaining a first clock signal of the wireless center device; and a modulation and demodulation module used for transmitting a first light wave and a second light wave to a wireless device by means of an optical fiber link, wherein the first light wave carries the first clock signal, receiving the second light wave carrying a second clock signal and transmitted by the wireless device, and receiving a second sub light wave reflected by the wireless device, so as to obtain the second clock signal carried by the second light wave and the first clock signal carried by the second sub light wave, and then transmit to the delay measurement module, so that the delay measurement module determines a delay control amount according to the first clock signal of the wireless center device.

Inventors:
HU ZHAOYU (CN)
Application Number:
PCT/CN2020/096272
Publication Date:
December 24, 2020
Filing Date:
June 16, 2020
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B10/071
Foreign References:
CN109756321A2019-05-14
CN102457372A2012-05-16
CN109375494A2019-02-22
CN109565344A2019-04-02
JP2008182385A2008-08-07
US20120213508A12012-08-23
CN201910522196A2019-06-17
Other References:
ASTON HEKKALA , LUKKA HARJULA: "ANALYSIS OF AND COMPENSATION FOR NON-IDEAL ROF LINKS IN DAS", IEEE WIRELESS COMMUNICATIONS, vol. 17, no. 3, 1 June 2010 (2010-06-01), pages 52 - 59, XP011311808
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
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