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Method and apparatus for clock switching, and base station

A clock switching and clock technology, which is applied in the field of mobile communication, can solve problems such as user dropped calls and inability to access the network, achieve smooth clock switching, improve system clock performance, and solve the effects of user dropped calls or inability to access the network

Active Publication Date: 2017-05-10
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide a clock switching method, device and base station to solve the problem that the switching of the existing system clock easily causes the user to drop calls and / or fail to access the network

Method used

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  • Method and apparatus for clock switching, and base station
  • Method and apparatus for clock switching, and base station
  • Method and apparatus for clock switching, and base station

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Such as figure 1 As shown, the embodiment of the present invention provides a clock switching method, the method includes:

[0048] S101. Obtain the time offset value and frequency offset value at the current moment through the standby clock source;

[0049] S102. Perform smoothing processing on the time offset value and frequency offset value at the current moment, respectively, to obtain a time offset value for adjustment and a frequency offset value for adjustment;

[0050] S103. Adjust a system clock according to the time offset value for adjustment and the frequency offset value for adjustment, and switch the current clock source to a backup clock source.

[0051] Among them, in the LTE communication system, the clock sources used include GPS, air interface synchronization and 1588; generally, after the system is powered on, the GPS or 1588 clock is configured as the current clock source; the default air interface synchronization clock also runs at the same time a...

Embodiment 2

[0102] Such as image 3 As shown, the embodiment of the present invention provides a clock switching device, the device includes:

[0103] The time-frequency offset value acquisition module 30 is used to obtain the time offset value and the frequency offset value at the current moment through the standby clock source;

[0104] A smoothing module 32, configured to smooth the time offset value and frequency offset value at the current moment, respectively, to obtain a time offset value for adjustment and a frequency offset value for adjustment;

[0105] The switching module 34 is configured to adjust the system clock according to the adjusted time offset value and the adjusted frequency offset value, and switch the current clock source to the backup clock source.

[0106] Wherein, the offset value acquiring module 30 is also used to acquire the time offset value and frequency offset value at the current moment through the current clock source; The time offset value and frequen...

Embodiment 3

[0121] An embodiment of the present invention provides a base station, where the base station includes the device described in Embodiment 2. In the embodiment of the present invention, when the system clock is switched in the base station, the standby clock source obtains the time offset value and frequency offset value at the current moment for smooth processing, which achieves the effect of clock smooth switching, improves the performance of the system clock, and effectively Solve the problem that the user drops the call or cannot access the network when the system clock is switched.

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Abstract

The invention discloses a method and apparatus for clock switching and a base station, to solve the problems that the existing system clock switching easily leads to the call drop of users and / or failure to access the network. The method comprises the steps of obtaining time and frequency offset values at the present moment by a standby clock source; smoothing the time and frequency offset values at the present moment respectively to obtain the time offset value for adjustment and the frequency offset value for adjustment; and adjusting the system clock according to the time offset value for adjustment and the frequency offset value for adjustment, and switching the current clock source to the standby clock source.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a clock switching method, device and base station. Background technique [0002] At present, in the LTE communication system, the reference clock sources used include GPS, air interface synchronization, and 1588. During the working process, there will be some abnormalities that cause the current clock source to be unavailable. At this time, the system clock needs to be switched. [0003] At present, the method of switching the system clock may easily cause the user to drop calls or fail to access the network, thereby affecting user experience and resulting in poor user experience. Contents of the invention [0004] In view of the defects of the prior art, the purpose of the present invention is to provide a clock switching method, device and base station to solve the problem that the switching of the existing system clock easily causes the user to drop calls and / or fail to a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/16
CPCH04W36/165H04W56/00
Inventor 董广明游洪波肖辉
Owner ZTE CORP
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