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Synchronization system test method and device and synchronization test equipment

A technology of synchronous testing and synchronous system, which is applied in the field of communication, can solve the problems that the synchronous testing equipment cannot meet the accuracy requirements, and achieve the effect of satisfying high-precision testing and eliminating system deviations

Pending Publication Date: 2022-07-08
CHINA MOBILE COMM LTD RES INST +1
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  • Abstract
  • Description
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Problems solved by technology

[0007] The purpose of the present invention is to provide a synchronization system testing method, device and synchronization testing equipment to solve the problem that the synchronization testing equipment in the prior art cannot be used for time synchronization equipment with high precision requirements in 5G or higher networks

Method used

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  • Synchronization system test method and device and synchronization test equipment
  • Synchronization system test method and device and synchronization test equipment
  • Synchronization system test method and device and synchronization test equipment

Examples

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Effect test

example 1

[0083] Step 1: The synchronous test equipment receives the satellite co-view data, GPS satellite signals and Beidou satellite signals of the satellite co-view server; the satellite co-view data includes multiple time bases and the clock difference information of the co-view satellites; the multiple time bases include GPS satellites The local time base of the system and the local time base of the Beidou Navigation Satellite System.

[0084] Step 2, the synchronization test equipment receives the time synchronization message of the device under test (ie, the output signal of the device under test), and determines whether the timeSource field of the time synchronization message carries the time reference identifier of the output signal of the device under test, and the time reference type includes GNSS- GPS and GNSS-Beidou, etc., assume that the time reference in this example is GNSS-Beidou.

[0085] Step 3: According to the time reference type corresponding to the time reference...

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Abstract

The invention provides a synchronization system test method and device and synchronization test equipment. The method comprises the following steps: acquiring a first time reference; the first time reference is the time reference of the output signal of the tested equipment; according to the first time reference, performing common-view comparison on the output signal and a time reference corresponding to a satellite common-view server, and determining a test result of the output signal; according to the embodiment of the invention, satellite common view can be realized, and the time reference can be selected according to the output signal of the tested equipment, so that the time reference of the synchronous test equipment is consistent with the time reference of the tested equipment, the system deviation is eliminated, and meanwhile, the requirement of high-precision test is met.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a method, device and synchronisation testing equipment for synchronizing system testing. Background technique [0002] The satellite receiver can receive the timing signal of the Global Navigation Satellite System (GNSS), and calculate the time of the satellite system. However, the time of each satellite system is not consistent, and there is usually a gap of tens of nanoseconds (ns) level, for example, greater than 20ns, and is not fixed. When different time synchronization devices receive different satellite system time, it will cause an absolute error of tens of nanoseconds in the time source, which cannot meet the 30ns accuracy requirement of time synchronization devices in 5G networks. [0003] The multi-mode satellite receiver can choose to receive one satellite system signal as the main use, and the other satellite system signals as the backup. [0004] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/12
CPCG06F1/12
Inventor 陆荣舵
Owner CHINA MOBILE COMM LTD RES INST
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