CN106658626A - Method and apparatus for clock switching, and base station - Google Patents
Method and apparatus for clock switching, and base station Download PDFInfo
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- CN106658626A CN106658626A CN201510724300.9A CN201510724300A CN106658626A CN 106658626 A CN106658626 A CN 106658626A CN 201510724300 A CN201510724300 A CN 201510724300A CN 106658626 A CN106658626 A CN 106658626A
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- frequency deviation
- bias
- adjustment
- deviation value
- clock source
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/165—Performing reselection for specific purposes for reducing network power consumption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
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
The present invention relates to field of mobile communication, more particularly to a kind of method of clock switching, device and base station.
Background technology
At present, in LTE communication systems, the reference clock source for using includes GPS, air interface synchronization and 1588,
In the course of the work, can there are some abnormal conditions causes that present clock source is unavailable, and this when is accomplished by
Carry out the switching of system clock.
At present, carry out system clock changing method be easily caused conversation loss or cannot access network, from
And user's impression is affected, cause poor user experience.
The content of the invention
In view of the defect of prior art, present invention aim at provide a kind of method of clock switching, device and
Base station, to the switching that solves existing system clock be easily caused conversation loss and/or cannot access network ask
Topic.
The object of the invention is mainly achieved through the following technical solutions：
According to an aspect of the present invention, the present invention provides a kind of method of clock switching, and methods described includes：
The when bias and frequency deviation value at current time is obtained by standby clock source；
By the current time when bias and frequency deviation value be smoothed respectively, obtain adjustment when it is inclined
Value and the frequency deviation value of adjustment；
According to the adjustment when bias and the adjustment frequency deviation value adjustment system clock, when will be current
Zhong Yuan is switched to standby clock source.
Further, it is described by the current time when bias and frequency deviation value be smoothed respectively, obtain
The when bias and the step of frequency deviation value of adjustment, specifically includes：
The when bias and frequency deviation value at current time is obtained by present clock source；
According to bias during standby clock source and frequency deviation value, and the when bias and frequency deviation value in present clock source, meter
Inclined smoothing factor and frequency deviation smoothing factor when calculation is obtained；
According to it is described when the inclined smoothing factor and when bias at the current time, it is determined that the when bias of adjustment；
And according to the frequency deviation smoothing factor and the frequency deviation value at the current time, it is determined that the frequency deviation value of adjustment.
Further, bias and frequency deviation value during the source according to standby clock, and the when bias in present clock source
And frequency deviation value, inclined smoothing factor and the step of frequency deviation smoothing factor when being calculated, specifically include：
Obtain several when deviations and frequency deviation difference not in the same time；
Respectively by it is described several when deviation and frequency deviation difference smoothed, obtain it is described when inclined smoothing factor
With the frequency deviation smoothing factor；
Wherein, deviation is that bias and standby clock source obtain when present clock source in the same time is obtained when
When bias do difference process obtain；
Frequency deviation difference is the frequency deviation of the frequency deviation value and standby clock source acquisition for obtaining in present clock source in the same time
Value does difference and processes acquisition.
Alternatively, methods described also includes：
Using GPS or 1588 clocks as present clock source, using air interface synchronization clock as standby clock
Source；When there is losing lock in the GPS or 1588 clocks, switched system clock；Or
Using air interface synchronization clock as present clock source, using GPS or 1588 clocks as standby clock
Source；After the GPS or 1588 clock lock, switched system clock.
Alternatively, methods described also includes：
There is losing lock by the GPS or 1588 clocks, and cause switched system clock when,
The when bias sum at the when bias of adjustment inclined smoothing factor and current time when being specially described；
And the frequency deviation value of adjustment is specially the frequency deviation value sum at the frequency deviation smoothing factor and the current time.
Alternatively, methods described also includes：
By the GPS or 1588 clock locks, and when causing switched system clock,
The when bias of adjustment be specially the current time when bias and it is described when inclined smoothing factor difference；
And the frequency deviation value of adjustment is specially the frequency deviation value at the current time and the difference of the frequency deviation smoothing factor.
According to an aspect of the present invention, the present invention provides a kind of device of clock switching, and described device includes：
When frequency deviation value acquisition module, for obtaining the when bias and frequency deviation value at current time by standby clock source；
Leveling Block, for by the current time when bias and frequency deviation value be smoothed respectively, obtain
Obtain adjustment when bias and adjustment frequency deviation value；
Handover module, for according to the adjustment when bias and the adjustment frequency deviation value adjustment system
Clock, standby clock source is switched to by system clock from present clock source.
Further, the bias acquisition module is additionally operable to obtain the when bias at current time by present clock source
And frequency deviation value；
The Leveling Block is specifically for according to bias during standby clock source and frequency deviation value, and present clock source
When bias and frequency deviation value, inclined smoothing factor and frequency deviation smoothing factor when being calculated；
According to it is described when the inclined smoothing factor and when bias at the current time, it is determined that the when bias of adjustment；
And according to the frequency deviation smoothing factor and the frequency deviation value at the current time, it is determined that the frequency deviation value of adjustment.
Further, the Leveling Block includes smoothing factor determining module, and the smoothing factor determining module is used
In obtaining several when deviations and frequency deviation difference not in the same time；
Respectively by it is described several when deviation and frequency deviation difference smoothed, obtain it is described when inclined smoothing factor
With the frequency deviation smoothing factor；
Wherein, deviation is that bias and standby clock source obtain when present clock source in the same time is obtained when
When bias do difference process obtain；
Frequency deviation difference is the frequency deviation of the frequency deviation value and standby clock source acquisition for obtaining in present clock source in the same time
Value does difference and processes acquisition.
According to an aspect of the present invention, the present invention provides a kind of base station, and the base station is using of the present invention
Clock switching device enter row clock switching.
The present invention has the beneficial effect that：
The present invention by by standby clock source obtain current time when bias and frequency deviation value be smoothed,
The effect of chock smotthing switching has been reached, system clock performance has been improve, system clock switching has been efficiently solved
When the conversation loss or problem that cannot network.
Description of the drawings
Fig. 1 is a kind of main flow chart of the method for clock switching in the embodiment of the present invention；
Fig. 2 is a kind of detail flowchart of the method for clock switching in the embodiment of the present invention；
Fig. 3 is a kind of apparatus structure schematic diagram of clock switching in the embodiment of the present invention.
Specific embodiment
In order to the switching that solves existing system clock be easily caused conversation loss and/or cannot access network ask
Topic, the invention provides a kind of method of clock switching, device and base station, below in conjunction with accompanying drawing and enforcement
Example, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, the present invention is not limited.
Embodiment one
As shown in figure 1, the embodiment of the present invention provides a kind of method of clock switching, methods described includes：
S101, by standby clock source the when bias and frequency deviation value at current time is obtained；
S102, by the current time when bias and frequency deviation value be smoothed respectively, obtain adjustment use
When bias and adjustment frequency deviation value；
S103, according to the adjustment when bias and the adjustment frequency deviation value adjustment system clock, will
Present clock source is switched to standby clock source.
Wherein, in LTE communication systems, the clock source for using includes GPS, air interface synchronization and 1588；
Usually after system electrification, GP configuring S or 1588 clocks, as present clock source；Acquiescence air interface synchronization
Clock also runs simultaneously, used as standby clock source.When also having special circumstances, such as GPS or 1588 clocks
After generation losing lock, it is present clock source that can also configure air interface synchronization clock, and GPS or 1588 clocks are used as standby
Use clock source.
When the embodiment of the present invention carries out the switching of system clock, by the way that standby clock source is obtained into current time
When bias and frequency deviation value be smoothed, reached chock smotthing switching effect, improve system clock
Performance, conversation loss or cannot network when efficiently solving the problems, such as that system clock switches.
Wherein, by the current time when bias and frequency deviation value be smoothed respectively, obtain adjustment use
When bias and adjustment frequency deviation value the step of, it is preferred to use following manner realize：
S1011, by present clock source the when bias and frequency deviation value at current time is obtained；
S1012, according to bias during standby clock source and frequency deviation value, and the when bias and frequency in present clock source
Bias, inclined smoothing factor and frequency deviation smoothing factor when being calculated；
S1013, according to it is described when the inclined smoothing factor and when bias at the current time, it is determined that adjustment
When bias；And
S1014, according to the frequency deviation smoothing factor and the frequency deviation value at the current time, it is determined that adjustment
Frequency deviation value.
In prior art, smoothing processing mode has a lot, and some modes are realized simply, but smooth effect is poor,
Some mode smooth effects are good, but realize complexity, and the computing capability of LTE system is had high demands.It is of the invention real
Apply the performance of example synthesis smooth effect and LTE system, it is preferred to use aforesaid way obtains the when bias of adjustment
And frequency deviation value, simply, in the case where the performance of LTE system is not affected, calculating is rapid, enters for which realization
One step improves the effect of chock smotthing switching.
Implementing for S1012 steps may be referred to following manner：
S10121, obtains several when deviations and frequency deviation difference not in the same time；
S10122, respectively by it is described several when deviation and frequency deviation difference be smoothed, obtain described
When the inclined smoothing factor and frequency deviation smoothing factor；
Wherein, deviation is that bias and standby clock source obtain when present clock source in the same time is obtained when
When bias do difference process obtain；
Frequency deviation difference is the frequency deviation of the frequency deviation value and standby clock source acquisition for obtaining in present clock source in the same time
Value does difference and processes acquisition.
In embodiments of the present invention, the inclined smoothing factor and during the frequency deviation smoothing factor when obtaining described, can
With the effect that takes over seamlessly as needed and the performance of LTE system, it is determined that deviation when being smoothed respectively
Value and frequency deviation difference number, it is preferred to use in 1 second select 100 within, such as 50 in 1 second, 55,
60th, 65 or 70.
At present, system clock is caused to have the reason for switching a lot, but it is it was found by the inventors of the present invention that very big
A part of reason is caused by GPS or 1588 clock losing locks, therefore based on this discovery, the present invention is implemented
Example method can also include：
Using GPS or 1588 clocks as present clock source, using air interface synchronization clock as standby clock
Source；When there is losing lock in the GPS or 1588 clocks, switched system clock.
Present inventor have further discovered that, after LTE system detects GPS or 1588 clock lock, need
By present clock source from being newly switched to GPS or 1588 clocks, therefore based on this discovery, the present invention is implemented
Example method can also include：
Using air interface synchronization clock as present clock source, using GPS or 1588 clocks as standby clock
Source；After the GPS or 1588 clock lock, switched system clock.
In order that the embodiment of the present invention is clearer, the system for being caused with GPS or 1588 clock losing locks below
As a example by clock switching, method in the embodiment of the present invention is described in detail.As shown in Fig. 2 detailed process is as follows：
Step 1：Electricity operation, using GPS or 1588 clocks as present clock source, matches somebody with somebody in LTE system
Put the system clock of work.
Step 2：Air interface synchronization is software clock, while as standby clock source, can synchronous real time execution,
Go forward side by side line period air interface synchronization.
Step 3：The dominant base that home base stations pass through presence around scanning, it is (current by GPS or 1588
Clock source) obtain home base stations when frequency deviation value.
Step 4：The dominant base that home base stations pass through presence around scanning, by air interface synchronization (standby clock
Source) obtain when frequency deviation value between home base stations and dominant base, frequency deviation value when recording this.What air interface synchronization was obtained
When frequency deviation value not as adjustment system clock reference value, only recorded.
Step 5：According to the when frequency deviation value that air interface synchronization gets, with GPS or 1588 clocks get
When frequency deviation value be smoothed, frequency deviation smoothing factor during acquisition.
Implementing for the step can be in the following way：
Step 51, when bias t that present clock source in the same time is obtained2The when bias obtained with standby clock source
t1It is difference process, deviation △ t during acquisitioni；
Specifically, the △ t at the i-th momenti=t2-t1；
The frequency deviation value that step 52, the frequency deviation value that present clock source in the same time is obtained and standby clock source obtain does
Difference process, obtains frequency deviation difference △ fi；
Specifically, the △ f at the i-th momenti=f2-f1；
Step 53, obtains several when deviations and frequency deviation difference not in the same time；That is, default
The when deviation and deviation during frequency of n time is taken in time period；For example in 1 second 60 times；
Step 54, respectively by it is described several when deviation and frequency deviation difference be smoothed, obtain described
When the inclined smoothing factor and frequency deviation smoothing factor；
Specifically, inclined smoothing factor k whentObtained using following calculations：
Frequency deviation smoothing factor kfObtained using following calculations：
Wherein, i=1,2,3 ... ..., n.
Step 6：When GPS or 1588 clock losing locks, system immediately according to it is described when inclined smoothing factor and institute
State when bias T at current time01, it is determined that when bias T of adjustment1；And according to the smooth system of the frequency deviation
Number and the frequency deviation value F at the current time01, it is determined that the frequency deviation value F of adjustment1。
Specifically, T1=kt+T01；F1=kf+F01。
That is, the when bias of adjustment when being specially described inclined smoothing factor and the current time when
Bias sum；The frequency deviation value of adjustment is specially the frequency deviation smoothing factor and the frequency deviation value at the current time
Sum.
Then according to the adjustment when bias and the adjustment frequency deviation value adjustment system clock, ought
Front clock source is switched to standby clock source.
After the completion of switching, present clock source is air interface synchronization clock, when standby clock source is GPS or 1588
Clock.
In order that the embodiment of the present invention is clearer, below with cause after GPS or 1588 clock locks when
As a example by clock switching, method in the embodiment of the present invention is described in detail.Detailed process is as follows：
In this detailed process, front 6 steps will not be described here as above-mentioned detailed process；
After above-mentioned steps 6, system is at interval of 10 minutes detection GPS or 1588 clocks (when standby
Zhong Yuan) whether lock, after GPS or 1588 clock lock is detected continuous 2 times, according to it is described when it is inclined
Smoothing factor and when bias T at the current time02, it is determined that when bias T of adjustment2；And
According to the frequency deviation smoothing factor and the frequency deviation value F at the current time02, it is determined that the frequency deviation of adjustment
Value F2。
Specifically, T2=T02-kt；F2=F02-kf。
That is, the when bias of adjustment be specially the current time when bias and it is described when smooth partially
The difference of coefficient；
The frequency deviation value of adjustment is specially the difference of the frequency deviation value at the current time and the frequency deviation smoothing factor.
Then according to the adjustment when bias and the adjustment frequency deviation value adjustment system clock, ought
Front clock source is switched to GPS or 1588 clocks.
After the completion of switching, present clock source is GPS or 1588 clocks, when standby clock source is air interface synchronization
Clock.
Embodiment two
As shown in figure 3, the embodiment of the present invention provides a kind of device of clock switching, described device includes：
When frequency deviation value acquisition module 30, for obtaining the when bias and frequency deviation at current time by standby clock source
Value；
Leveling Block 32, for by the current time when bias and frequency deviation value be smoothed respectively,
Obtain adjustment when bias and adjustment frequency deviation value；
Handover module 34, for according to the adjustment when bias and the adjustment frequency deviation value adjustment system
System clock, by present clock source standby clock source is switched to.
Wherein, the bias acquisition module 30 be additionally operable to by present clock source obtain current time when it is inclined
Value and frequency deviation value；Leveling Block 32 is specifically for according to bias during standby clock source and frequency deviation value, and works as
The when bias and frequency deviation value of front clock source, inclined smoothing factor and frequency deviation smoothing factor when being calculated；
According to it is described when the inclined smoothing factor and when bias at the current time, it is determined that the when bias of adjustment；
And according to the frequency deviation smoothing factor and the frequency deviation value at the current time, it is determined that the frequency deviation value of adjustment.
Specifically, Leveling Block include smoothing factor determining module and when frequency deviation value determining module；
Smoothing factor determining module is used to obtain several when deviations and frequency deviation difference not in the same time；And
Respectively by it is described several when deviation and frequency deviation difference be smoothed, obtain it is described when inclined smoothing factor
With the frequency deviation smoothing factor；
Wherein, deviation is that bias and standby clock source obtain when present clock source in the same time is obtained when
When bias do difference process obtain；
Frequency deviation difference is the frequency deviation of the frequency deviation value and standby clock source acquisition for obtaining in present clock source in the same time
Value does difference and processes acquisition.
When frequency deviation value determining module be used for according to it is described when the inclined smoothing factor and when bias at the current time,
It is determined that the when bias of adjustment；And according to the frequency deviation smoothing factor and the frequency deviation value at the current time,
It is determined that the frequency deviation value of adjustment.
Device can also include trigger module in the embodiment of the present invention, for when LTE system using GPS or
1588 clocks as present clock source, using air interface synchronization clock as standby clock source；As the GPS
Or during 1588 clock generation losing lock, trigger handover module switched system clock；Or
Made using GPS or 1588 clocks as present clock source using air interface synchronization clock when LTE system
For standby clock source；After the GPS or 1588 clock lock, handover module switched system clock is triggered.
Wherein, there is losing lock by the GPS or 1588 clocks, and cause switched system clock when,
The when bias sum at the when bias of adjustment inclined smoothing factor and current time when being specially described；
And the frequency deviation value of adjustment is specially the frequency deviation value sum at the frequency deviation smoothing factor and the current time.
By the GPS or 1588 clock locks, and when causing switched system clock,
The when bias of adjustment be specially the current time when bias and it is described when inclined smoothing factor difference；
And the frequency deviation value of adjustment is specially the frequency deviation value at the current time and the difference of the frequency deviation smoothing factor.
The embodiment of the present invention is the corresponding device embodiment of embodiment one, and specific setting refers to embodiment one,
Will not be described here.When device carries out the switching of system clock in the embodiment of the present invention, by by standby clock
Source obtain current time when bias and frequency deviation value be smoothed, reached chock smotthing switching effect,
System clock performance is improve, conversation loss or asking of cannot networking when system clock switches is efficiently solved
Topic.
Embodiment three
The embodiment of the present invention provides a kind of base station, and the base station includes the described device of embodiment two.It is of the invention real
Apply in example in base station when the switching of system clock is carried out, by by standby clock source obtain current time when
Bias and frequency deviation value are smoothed, and have reached the effect of chock smotthing switching, improve system clock
Can, conversation loss or cannot network when efficiently solving the problems, such as that system clock switches.
Although being example purpose, the preferred embodiments of the present invention, the technology of this area are more than had been disclosed for
Personnel will recognize that various improvement, increase and replacement are also possible, therefore, the scope of the present invention should not
It is limited to above-described embodiment.
Claims (10)
1. a kind of method that clock switches, it is characterised in that methods described includes：
The when bias and frequency deviation value at current time is obtained by standby clock source；
By the current time when bias and frequency deviation value be smoothed respectively, obtain adjustment when it is inclined
Value and the frequency deviation value of adjustment；
According to the adjustment when bias and the adjustment frequency deviation value adjustment system clock, during by system
Clock is switched to standby clock source from present clock source.
2. the method for claim 1, it is characterised in that it is described by the current time when it is inclined
Value and frequency deviation value are smoothed respectively, obtain the when bias and the step of frequency deviation value of adjustment, concrete bag
Include：
The when bias and frequency deviation value at current time is obtained by present clock source；
According to bias during standby clock source and frequency deviation value, and the when bias and frequency deviation value in present clock source, meter
Inclined smoothing factor and frequency deviation smoothing factor when calculation is obtained；
According to it is described when the inclined smoothing factor and when bias at the current time, it is determined that the when bias of adjustment；
And according to the frequency deviation smoothing factor and the frequency deviation value at the current time, it is determined that the frequency deviation value of adjustment.
3. method as claimed in claim 2, it is characterised in that the bias during source according to standby clock
And frequency deviation value, and the when bias and frequency deviation value in present clock source, inclined smoothing factor and frequency deviation when being calculated
The step of smoothing factor, specifically include：
Obtain several when deviations and frequency deviation difference not in the same time；
Respectively by it is described several when deviation and frequency deviation difference smoothed, obtain it is described when inclined smoothing factor
With the frequency deviation smoothing factor；
Wherein, deviation is that bias and standby clock source obtain when present clock source in the same time is obtained when
When bias do difference process obtain；
Frequency deviation difference is the frequency deviation of the frequency deviation value and standby clock source acquisition for obtaining in present clock source in the same time
Value does difference and processes acquisition.
4. the method as described in claim 1-3 any one, it is characterised in that methods described also includes：
Using GPS or 1588 clocks as present clock source, using air interface synchronization clock as standby clock
Source；When there is losing lock in the GPS or 1588 clocks, switched system clock；Or
Using air interface synchronization clock as present clock source, using GPS or 1588 clocks as standby clock
Source；After the GPS or 1588 clock lock, switched system clock.
5. method as claimed in claim 4, it is characterised in that methods described also includes：
There is losing lock by the GPS or 1588 clocks, and cause switched system clock when,
The when bias sum at the when bias of adjustment inclined smoothing factor and current time when being specially described；
And the frequency deviation value of adjustment is specially the frequency deviation value sum at the frequency deviation smoothing factor and the current time.
6. method as claimed in claim 4, it is characterised in that methods described also includes：
By the GPS or 1588 clock locks, and when causing switched system clock,
The when bias of adjustment be specially the current time when bias and it is described when inclined smoothing factor difference；
And the frequency deviation value of adjustment is specially the frequency deviation value at the current time and the difference of the frequency deviation smoothing factor.
7. the device that a kind of clock switches, it is characterised in that described device includes：
Bias acquisition module, for obtaining the when bias and frequency deviation value at current time by standby clock source；
Leveling Block, for by the current time when bias and frequency deviation value be smoothed respectively, obtain
Obtain adjustment when bias and adjustment frequency deviation value；
Handover module, for according to the adjustment when bias and the adjustment frequency deviation value adjustment system
Clock, standby clock source is switched to by system clock from present clock source.
8. device as claimed in claim 7, it is characterised in that the bias acquisition module is additionally operable to lead to
Cross the when bias and frequency deviation value that current clock source obtains current time；
The Leveling Block is specifically for according to bias during standby clock source and frequency deviation value, and present clock source
When bias and frequency deviation value, inclined smoothing factor and frequency deviation smoothing factor when being calculated；
According to it is described when the inclined smoothing factor and when bias at the current time, it is determined that the when bias of adjustment；
And according to the frequency deviation smoothing factor and the frequency deviation value at the current time, it is determined that the frequency deviation value of adjustment.
9. device as claimed in claim 8, it is characterised in that the Leveling Block includes smoothing factor
Determining module, the smoothing factor determining module is used to obtain several when deviations and frequency deviation not in the same time
Difference；
Respectively by it is described several when deviation and frequency deviation difference smoothed, obtain it is described when inclined smoothing factor
With the frequency deviation smoothing factor；
Wherein, deviation is that bias and standby clock source obtain when present clock source in the same time is obtained when
When bias do difference process obtain；
Frequency deviation difference is the frequency deviation of the frequency deviation value and standby clock source acquisition for obtaining in present clock source in the same time
Value does difference and processes acquisition.
10. a kind of base station, it is characterised in that the base station is using described in claim 7-9 any one
The device of clock switching enters row clock switching.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724300.9A CN106658626B (en) | 2015-10-29 | 2015-10-29 | Clock switching method, device and base station |
| PCT/CN2016/070870 WO2016184148A1 (en) | 2015-10-29 | 2016-01-14 | Clock switching method, apparatus and base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724300.9A CN106658626B (en) | 2015-10-29 | 2015-10-29 | Clock switching method, device and base station |
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| Publication Number | Publication Date |
|---|---|
| CN106658626A true CN106658626A (en) | 2017-05-10 |
| CN106658626B CN106658626B (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510724300.9A Active CN106658626B (en) | 2015-10-29 | 2015-10-29 | Clock switching method, device and base station |
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| CN (1) | CN106658626B (en) |
| WO (1) | WO2016184148A1 (en) |
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| WO2021195956A1 (en) * | 2020-03-31 | 2021-10-07 | 华为技术有限公司 | Clock calibration method and apparatus |
| CN112640333B (en) * | 2020-03-31 | 2022-02-11 | 华为技术有限公司 | Clock calibration method and device |
| CN117112316A (en) * | 2023-10-25 | 2023-11-24 | 苏州元脑智能科技有限公司 | Switching system, method, device and medium of clock circuit |
| CN117112316B (en) * | 2023-10-25 | 2024-02-09 | 苏州元脑智能科技有限公司 | Switching system, method, device and medium of clock circuit |
Also Published As
| Publication number | Publication date |
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| WO2016184148A1 (en) | 2016-11-24 |
| CN106658626B (en) | 2020-12-22 |
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