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Time synchronization deviation adjustment method, device, terminal and access layer equipment

A technology of time deviation adjustment and access layer equipment, which is applied in the field of communication, can solve the problems of asymmetric accuracy of sending and receiving optical fibers, inability to meet the increasing accuracy of synchronization time, errors, etc.

Active Publication Date: 2021-02-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, there is a certain error in the accuracy of time synchronization through the 1588 protocol due to the error of the bearer network equipment itself, the jitter error, and the asymmetry of the sending and receiving optical fibers.
As a result, the time obtained by synchronization based on the 1588 protocol cannot meet the needs of increasing synchronization time accuracy of mobile communication system services with the continuous advancement of technology and the increasing demand of people.

Method used

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  • Time synchronization deviation adjustment method, device, terminal and access layer equipment
  • Time synchronization deviation adjustment method, device, terminal and access layer equipment
  • Time synchronization deviation adjustment method, device, terminal and access layer equipment

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Embodiment Construction

[0064] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0065] In the embodiments of the present application, descriptions such as "first" or "second" are only for clarity of description and do not constitute limitations, in some cases. For example, "the first 1588 terminal" and "the second 1588 terminal" are only used to distinguish different 1588 terminals. It can be referred to as "the first 1588 terminal", and the "first" and "second" here do not constitute a limitation on the 1588 terminal.

[0066] The technical solutions provided in the embodiments of this application are applicable to figure 1 In the mobile communication system shown. combine figure 1 As shown, the communication system includes a bearer network 100, a 1588 terminal 200 and a clock server 500. The 1588 terminal 200 is connected to the bearer network 100, and the be...

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Abstract

Embodiments of the present application provide a time synchronization offset adjustment method, device, terminal, and access layer device. The method includes, according to the 1588 time deviation value, the 1588 terminal or the access layer device compensates the synchronized 1588 time, so as to reduce the error caused by the asymmetric transmission and reception link delay, and improve the synchronization of the 1588 time precision.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a time synchronization deviation adjustment method, device, terminal and access layer equipment. Background technique [0002] Mobile communication technology needs to ensure the time synchronization of each device to meet the correct sending and receiving of data. For example, both the long term evolution (long term evolution, LTE) system and the fifth generation mobile communication technology (the 5th generation mobile communication technology, 5G) system require strict time synchronization to meet the normal operation of services. The higher the accuracy of time synchronization, the higher the accuracy of data transmission and reception, and the higher the communication efficiency. [0003] At present, due to the precision clock synchronization protocol standard for a precision clock synchronization protocol for networked measurement and control systems (IEEE ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/06H04W56/00
CPCH04J3/0667H04J3/0644H04J3/0682H04W56/0055H04W56/009G01S19/256H04W56/005
Inventor 尹照根李继红窦道祥王自强
Owner HUAWEI TECH CO LTD