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Time synchronization method and electronic equipment

A technology of time synchronization and electronic equipment, which is applied in the direction of synchronization devices, synchronization devices, synchronization signal speed/phase control, etc., and can solve the problems of time synchronization accuracy reduction, routing delay uncertainty, encoding and decoding delay uncertainty, etc. question

Active Publication Date: 2020-07-07
ZTE CORP
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, the current way of distributing real time counter (RTC, Real Time Clock) information has many delay uncertainties on the path, such as the delay uncertainty of the driver, the delay uncertainty of the wiring, the programming delay uncertainty, etc. The delay uncertainty of decoding, etc., which will lead to the reduction of time synchronization accuracy

Method used

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  • Time synchronization method and electronic equipment
  • Time synchronization method and electronic equipment
  • Time synchronization method and electronic equipment

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Embodiment Construction

[0061] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0062] Unless otherwise specified, the time in the embodiments of the present application refers to RTC information.

[0063] For node devices in the time synchronization network, the distribution method of RTC information in the node device system is: the RTC information is encoded on the 1pps (1pulse per second) signal through the Field Programmable Logic Array (FPGA, Field-Programmable Gate Array), The system backplane (backlane) uses the bus to distribute to each line card...

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Abstract

The invention discloses a time synchronization method and electronic equipment, and the method comprises that: a first module transmits a clock synchronization signal to a second module, enables RTC information to be coded on the clock synchronization signal, and transmits the clock synchronization signal to the second module, wherein the clock synchronization signal is used for measuring the timedelay between the first module and at least one second module, the time delay is used for carrying out phase compensation on a clock synchronization signal received by the second module side, and theclock synchronization signal after phase compensation is used for triggering the second module to update local second RTC information to the first RTC information.

Description

technical field [0001] The present application relates to time synchronization technology, in particular to a time synchronization method and electronic equipment. Background technique [0002] The next generation of mobile communications, namely the fifth generation (5G, 5 th Generation) mobile communication puts forward higher requirements for time synchronization network. In some networks, such as backhaul networks, fronthaul networks and other bearer networks, the synchronization requirements of single-node devices reach ns or even sub-ns level relative to the time source. However, the current way of distributing real time counter (RTC, Real Time Clock) information has many delay uncertainties on the path, such as the delay uncertainty of the driver, the delay uncertainty of the wiring, the programming delay uncertainty, etc. Uncertainty of delay in decoding, etc., which will lead to reduced accuracy of time synchronization. Contents of the invention [0003] Embod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06
CPCH04J3/0685H04L7/0331H04L7/06H04W56/0035H04W56/001
Inventor 刘伟陈杰卢贤军潘雄严亮
Owner ZTE CORP
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