CN106658626B - Clock switching method, device and base station - Google Patents
Clock switching method, device and base station Download PDFInfo
- Publication number
- CN106658626B CN106658626B CN201510724300.9A CN201510724300A CN106658626B CN 106658626 B CN106658626 B CN 106658626B CN 201510724300 A CN201510724300 A CN 201510724300A CN 106658626 B CN106658626 B CN 106658626B
- Authority
- CN
- China
- Prior art keywords
- offset value
- time
- frequency offset
- clock
- time offset
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
-
- 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
Abstract
The invention discloses a clock switching method, a clock switching device and a base station, which are used for solving the problems that the switching of the clock of the existing system easily causes call drop of a user and/or network access can not be realized. The method comprises the following steps: acquiring a time offset value and a frequency offset value of the current moment through a standby clock source; respectively smoothing the time offset value and the frequency offset value of the current moment to obtain a time offset value for adjustment and a frequency offset value for adjustment; and adjusting a system clock according to the time offset value for adjustment and the frequency offset value for adjustment, and switching the current clock source to a standby clock source.
Description
Technical Field
The present invention relates to the field of mobile communications, and in particular, to a method, an apparatus, and a base station for clock switching.
Background
At present, in an LTE communication system, a used reference clock source includes a GPS, an air interface synchronization 1588, and in a working process, some abnormal conditions may exist to cause the current clock source to be unavailable, and at this time, switching of a system clock is required.
At present, a method for switching a system clock easily causes a user to drop a call or cannot access a network, so that user experience is influenced and poor.
Disclosure of Invention
In view of the defects of the prior art, the present invention provides a method, an apparatus and a base station for clock switching, so as to solve the problem that switching of the existing system clock easily causes a call drop of a user and/or a network cannot be accessed.
The purpose of the invention is mainly realized by the following technical scheme:
according to one aspect of the invention, there is provided a method of clock switching, the method comprising:
acquiring a time offset value and a frequency offset value of the current moment through a standby clock source;
respectively smoothing the time offset value and the frequency offset value of the current moment to obtain a time offset value for adjustment and a frequency offset value for adjustment;
and adjusting a system clock according to the time offset value for adjustment and the frequency offset value for adjustment, and switching the current clock source to a standby clock source.
Further, the step of respectively smoothing the time offset value and the frequency offset value at the current time to obtain a time offset value and a frequency offset value for adjustment specifically includes:
acquiring a time offset value and a frequency offset value of the current moment through a current clock source;
calculating to obtain a time offset smoothing coefficient and a frequency offset smoothing coefficient according to the time offset value and the frequency offset value of the standby clock source and the time offset value and the frequency offset value of the current clock source;
determining a time offset value for adjustment according to the time offset smoothing coefficient and the time offset value at the current moment; and determining a frequency offset value for adjustment according to the frequency offset smoothing coefficient and the frequency offset value at the current moment.
Further, the step of calculating a time offset smoothing coefficient and a frequency offset smoothing coefficient according to the time offset value and the frequency offset value of the standby clock source and the time offset value and the frequency offset value of the current clock source specifically includes:
acquiring time deviation values and frequency deviation values of a plurality of different moments;
smoothing the time deviation values and the frequency deviation values respectively to obtain a time deviation smoothing coefficient and a frequency deviation smoothing coefficient;
the time offset value is obtained by performing difference processing on the time offset value obtained by the current clock source and the time offset value obtained by the standby clock source at the same time;
the frequency offset difference is obtained by performing difference processing on the frequency offset value obtained by the current clock source and the frequency offset value obtained by the standby clock source at the same time.
Optionally, the method further comprises:
adopting a GPS or 1588 clock as a current clock source, and adopting an air interface synchronous clock as a standby clock source; when the GPS or 1588 clock is unlocked, switching a system clock; or
An air interface synchronous clock is adopted as a current clock source, and a GPS or 1588 clock is adopted as a standby clock source; and switching the system clock after the GPS or 1588 clock is locked.
Optionally, the method further comprises:
when the system clock is switched due to the loss of lock of the GPS or 1588 clock,
the time offset value for adjustment is specifically the sum of the time offset smoothing coefficient and the time offset value at the current moment; and the frequency offset value for adjustment is specifically the sum of the frequency offset smoothing coefficient and the frequency offset value at the current moment.
Optionally, the method further comprises:
when the system clock is switched due to the locking of the GPS or 1588 clock,
the time offset value for adjustment is specifically the difference between the time offset value of the current moment and the time offset smoothing coefficient; and the frequency offset value for adjustment is specifically the difference between the frequency offset value of the current time and the frequency offset smoothing coefficient.
According to one aspect of the present invention, there is provided an apparatus for clock switching, the apparatus comprising:
the time-frequency offset value acquisition module is used for acquiring a time offset value and a frequency offset value of the current moment through a standby clock source;
the smoothing module is used for respectively smoothing the time offset value and the frequency offset value of the current moment to obtain a time offset value for adjustment and a frequency offset value for adjustment;
and the switching module is used for adjusting the system clock according to the time offset value for adjustment and the frequency offset value for adjustment and switching the system clock from the current clock source to the standby clock source.
Further, the offset value obtaining module is further configured to obtain a time offset value and a frequency offset value of the current time through a current clock source;
the smoothing module is specifically used for calculating a time offset smoothing coefficient and a frequency offset smoothing coefficient according to the time offset value and the frequency offset value of the standby clock source and the time offset value and the frequency offset value of the current clock source;
determining a time offset value for adjustment according to the time offset smoothing coefficient and the time offset value at the current moment; and determining a frequency offset value for adjustment according to the frequency offset smoothing coefficient and the frequency offset value at the current moment.
Further, the smoothing module comprises a smoothing coefficient determining module, and the smoothing coefficient determining module is used for acquiring time offset values and frequency offset values of a plurality of different moments;
smoothing the time deviation values and the frequency deviation values respectively to obtain a time deviation smoothing coefficient and a frequency deviation smoothing coefficient;
the time offset value is obtained by performing difference processing on the time offset value obtained by the current clock source and the time offset value obtained by the standby clock source at the same time;
the frequency offset difference is obtained by performing difference processing on the frequency offset value obtained by the current clock source and the frequency offset value obtained by the standby clock source at the same time.
According to an aspect of the present invention, the present invention provides a base station, wherein the base station performs clock switching by using the clock switching apparatus of the present invention.
The invention has the following beneficial effects:
the invention achieves the effect of clock smooth switching by smoothing the time offset value and the frequency offset value of the standby clock source at the current moment, improves the performance of the system clock, and effectively solves the problem that a user drops calls or can not access the network when the system clock is switched.
Drawings
FIG. 1 is a main flow chart of a method of clock switching according to an embodiment of the present invention;
FIG. 2 is a detailed flowchart of a clock switching method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a clock switching apparatus according to an embodiment of the present invention.
Detailed Description
In order to solve the problem that switching of the existing system clock easily causes a call drop of a user and/or a network access failure, the invention provides a clock switching method, a device and a base station. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Example one
As shown in fig. 1, an embodiment of the present invention provides a method for clock switching, where the method includes:
s101, acquiring a time offset value and a frequency offset value of the current moment through a standby clock source;
s102, respectively smoothing the time offset value and the frequency offset value of the current moment to obtain a time offset value for adjustment and a frequency offset value for adjustment;
s103, adjusting a system clock according to the time offset value for adjustment and the frequency offset value for adjustment, and switching the current clock source to a standby clock source.
In an LTE communication system, a used clock source comprises a GPS, an air interface synchronization unit 1588; after a system is generally electrified, a GPS or 1588 clock is configured to serve as a current clock source; and the default air interface synchronous clock also runs at the same time and is used as a standby clock source. In special cases, for example, after the GPS or 1588 clock is unlocked, an air interface synchronization clock may be configured as a current clock source, and the GPS or 1588 clock may be configured as a standby clock source.
When the system clock is switched, the embodiment of the invention smoothly processes the time offset value and the frequency offset value of the current time acquired by the standby clock source, thereby achieving the effect of smooth switching of the clock, improving the performance of the system clock, and effectively solving the problem that a user drops the call or can not access the network when the system clock is switched.
The step of obtaining the time offset value for adjustment and the frequency offset value for adjustment by respectively smoothing the time offset value and the frequency offset value at the current time is preferably implemented by adopting the following method:
s1011, acquiring a time offset value and a frequency offset value of the current time through a current clock source;
s1012, calculating to obtain a time offset smoothing coefficient and a frequency offset smoothing coefficient according to the time offset value and the frequency offset value of the standby clock source and the time offset value and the frequency offset value of the current clock source;
s1013, determining a time offset value for adjustment according to the time offset smoothing coefficient and the time offset value of the current moment; and
and S1014, determining a frequency offset value for adjustment according to the frequency offset smoothing coefficient and the frequency offset value at the current moment.
In the prior art, there are many smoothing processing modes, some of which are simple to implement but have poor smoothing effect, and some of which have good smoothing effect but are complex to implement and have high requirements on the computing power of an LTE system. The embodiment of the invention integrates the smooth effect and the performance of the LTE system, and preferably adopts the mode to obtain the time offset value and the frequency offset value for adjustment, the mode is simple to realize, the calculation is rapid under the condition of not influencing the performance of the LTE system, and the effect of smooth switching of the clock is further improved.
The specific implementation of the step S1012 can refer to the following manner:
s10121, acquiring time deviation values and frequency deviation values of a plurality of different moments;
s10122, smoothing the time deviation values and the frequency deviation values respectively to obtain a time deviation smoothing coefficient and a frequency deviation smoothing coefficient;
the time offset value is obtained by performing difference processing on the time offset value obtained by the current clock source and the time offset value obtained by the standby clock source at the same time;
the frequency offset difference is obtained by performing difference processing on the frequency offset value obtained by the current clock source and the frequency offset value obtained by the standby clock source at the same time.
In the embodiment of the present invention, when obtaining the time offset smoothing coefficient and the frequency offset smoothing coefficient, the number of the time offset value and the frequency offset value to be respectively smoothed may be determined according to the effect of the smooth handover required and the performance of the LTE system, and is preferably selected to be within 100 within 1 second, for example, 50, 55, 60, 65, or 70 within 1 second.
At present, there are many reasons for causing the system clock to switch, but the inventor of the present invention finds that a large part of the reasons are caused by the loss of lock of the GPS or 1588 clock, and based on this finding, the method of the embodiment of the present invention may further include:
adopting a GPS or 1588 clock as a current clock source, and adopting an air interface synchronous clock as a standby clock source; and when the GPS or 1588 clock is unlocked, switching the system clock.
The inventor of the present invention also finds that, when the LTE system detects that the GPS or 1588 clock is locked, the current clock source needs to be switched from the new GPS or 1588 clock, so based on this finding, the method in the embodiment of the present invention may further include:
an air interface synchronous clock is adopted as a current clock source, and a GPS or 1588 clock is adopted as a standby clock source; and switching the system clock after the GPS or 1588 clock is locked.
In order to make the embodiment of the present invention clearer, the method in the embodiment of the present invention is described in detail below by taking the system clock switching caused by the loss of lock of the GPS or 1588 clock as an example. As shown in fig. 2, the detailed flow is as follows:
step 1: and the LTE system is electrified and operated, and a GPS or 1588 clock is adopted as a current clock source to configure a working system clock.
Step 2: the air interface synchronization is a software clock, and simultaneously serves as a standby clock source, so that the synchronous real-time operation can be realized, and the periodic air interface synchronization is carried out.
And step 3: the local base station obtains the time-frequency offset value of the local base station through GPS or 1588 (current clock source) by scanning the main base stations existing around.
And 4, step 4: the local base station scans the main base stations existing around, obtains the time frequency offset value between the local base station and the main base station through air interface synchronization (standby clock source), and records the time frequency offset value. And the time frequency offset value obtained by air interface synchronization is not used as a reference value for adjusting the system clock, and is only recorded.
And 5: and according to the time frequency offset value synchronously acquired by the air interface, smoothing the time frequency offset value acquired by the GPS or 1588 clock to acquire a time frequency offset smoothing coefficient.
The specific implementation of the step can adopt the following modes:
step 51, obtaining the time offset t of the current clock source at the same time2And the time offset t obtained by the standby clock source1Difference value processing is carried out to obtain a time deviation value delta ti；
In particular, Δ t at the ith timei＝t2-t1；
Step 52, performing difference processing on the frequency offset value obtained by the current clock source and the frequency offset value obtained by the standby clock source at the same time to obtain a frequency offset difference value Δ fi；
Specifically, the ith timeΔ f ofi＝f2-f1；
Step 53, acquiring time deviation values and frequency deviation values of a plurality of different moments; that is, the time deviation value and the frequency deviation value are taken n times within a preset time period; e.g., 60 times in 1 second;
step 54, smoothing the time offset values and the frequency offset values respectively to obtain a time offset smoothing coefficient and a frequency offset smoothing coefficient;
specifically, the time-offset smoothing coefficient ktThe following calculation method is adopted to obtain:
frequency offset smoothing coefficient kfThe following calculation method is adopted to obtain:
wherein i is 1,2,3, … …, n.
Step 6: when the GPS or 1588 clock is unlocked, the system immediately performs the operation according to the time offset smoothing coefficient and the time offset value T of the current time01Determining the time offset value T for the adjustment1(ii) a And according to the frequency offset smoothing coefficient and the frequency offset value F of the current moment01Determining a frequency offset value F for the adjustment1。
In particular, T1＝kt+T01；F1＝kf+F01。
That is, the time offset value for adjustment is specifically the sum of the time offset smoothing coefficient and the time offset value at the current time; the frequency offset value for adjustment is specifically the sum of the frequency offset smoothing coefficient and the frequency offset value at the current time.
And then, adjusting a system clock according to the time offset value for adjustment and the frequency offset value for adjustment, and switching the current clock source to a standby clock source.
And after the switching is finished, the current clock source is an air interface synchronous clock, and the standby clock source is a GPS or 1588 clock.
In order to make the embodiment of the present invention clearer, the method in the embodiment of the present invention is described in detail below by taking an example of clock switching caused after GPS or 1588 clock locking. The detailed process is as follows:
in the detailed flow, the first 6 steps are the same as the detailed flow, and are not described herein again;
after the step 6, the system detects whether the GPS or 1588 clock (standby clock source) is locked or not at intervals of 10 minutes, and after the locking of the GPS or 1588 clock is continuously detected for 2 times, the system detects whether the GPS or 1588 clock is locked or not according to the time offset smoothing coefficient and the time offset value T of the current time02Determining the time offset value T for the adjustment2(ii) a And
according to the frequency offset smoothing coefficient and the frequency offset value F of the current moment02Determining a frequency offset value F for the adjustment2。
In particular, T2＝T02-kt；F2＝F02-kf。
That is, the time offset value for adjustment is specifically the difference between the time offset value at the current time and the time offset smoothing coefficient;
the frequency offset value for adjustment is specifically the difference between the frequency offset value at the current time and the frequency offset smoothing coefficient.
And then, adjusting a system clock according to the time offset value for adjustment and the frequency offset value for adjustment, and switching a current clock source to a GPS or 1588 clock.
And after the switching is finished, the current clock source is a GPS or 1588 clock, and the standby clock source is an air interface synchronous clock.
Example two
As shown in fig. 3, an embodiment of the present invention provides a clock switching apparatus, where the apparatus includes:
a time-frequency offset value obtaining module 30, configured to obtain a time offset value and a frequency offset value at a current time by using a standby clock source;
a smoothing module 32, configured to perform smoothing processing on the time offset value and the frequency offset value at the current time respectively to obtain a time offset value for adjustment and a frequency offset value for adjustment;
and the switching module 34 is configured to 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 standby clock source.
The offset value obtaining module 30 is further configured to obtain a time offset value and a frequency offset value at the current time through a current clock source; the smoothing module 32 is specifically configured to calculate a time offset smoothing coefficient and a frequency offset smoothing coefficient according to the time offset value and the frequency offset value of the standby clock source and the time offset value and the frequency offset value of the current clock source;
determining a time offset value for adjustment according to the time offset smoothing coefficient and the time offset value at the current moment; and determining a frequency offset value for adjustment according to the frequency offset smoothing coefficient and the frequency offset value at the current moment.
Specifically, the smoothing module comprises a smoothing coefficient determining module and a time-frequency offset value determining module;
the smooth coefficient determining module is used for acquiring time deviation values and frequency deviation values at a plurality of different moments; respectively smoothing the time deviation values and the frequency deviation values to obtain a time deviation smoothing coefficient and a frequency deviation smoothing coefficient;
the time offset value is obtained by performing difference processing on the time offset value obtained by the current clock source and the time offset value obtained by the standby clock source at the same time;
the frequency offset difference is obtained by performing difference processing on the frequency offset value obtained by the current clock source and the frequency offset value obtained by the standby clock source at the same time.
The time-frequency offset value determining module is used for determining a time offset value for adjustment according to the time offset smoothing coefficient and the time offset value at the current moment; and determining a frequency offset value for adjustment according to the frequency offset smoothing coefficient and the frequency offset value at the current moment.
The device in the embodiment of the present invention may further include a triggering module, configured to use a GPS or 1588 clock as a current clock source and an air interface synchronization clock as a standby clock source in the LTE system; when the GPS or 1588 clock is unlocked, triggering a switching module to switch a system clock; or
When the LTE system adopts an air interface synchronous clock as a current clock source, and adopts a GPS or 1588 clock as a standby clock source; and when the GPS or 1588 clock is locked, triggering a switching module to switch the system clock.
Wherein, when the system clock is switched due to the loss of lock of the GPS or 1588 clock,
the time offset value for adjustment is specifically the sum of the time offset smoothing coefficient and the time offset value at the current moment; and the frequency offset value for adjustment is specifically the sum of the frequency offset smoothing coefficient and the frequency offset value at the current moment.
When the system clock is switched due to the locking of the GPS or 1588 clock,
the time offset value for adjustment is specifically the difference between the time offset value of the current moment and the time offset smoothing coefficient; and the frequency offset value for adjustment is specifically the difference between the frequency offset value of the current time and the frequency offset smoothing coefficient.
The embodiment of the present invention is a device embodiment corresponding to the first embodiment, and specific configuration is referred to the first embodiment, which is not described herein again. When the device in the embodiment of the invention switches the system clock, the time offset value and the frequency offset value of the current time acquired by the standby clock source are smoothed, so that the effect of smooth switching of the clock is achieved, the performance of the system clock is improved, and the problem that a user drops a call or can not access the network during switching of the system clock is effectively solved.
EXAMPLE III
The embodiment of the invention provides a base station, which comprises the device in the second embodiment. In the embodiment of the invention, when the system clock is switched, the standby clock source is used for acquiring the time offset value and the frequency offset value of the current time to carry out smooth processing, so that the effect of smooth switching of the clock is achieved, the performance of the system clock is improved, and the problem that a user drops calls or can not access the network during switching of the system clock is effectively solved.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, and that the scope of the invention is not limited to the embodiments disclosed.
Claims (6)
1. A method of clock switching, the method comprising:
acquiring a time offset value and a frequency offset value of the current moment through a standby clock source;
respectively smoothing the time offset value and the frequency offset value of the current moment to obtain a time offset value for adjustment and a frequency offset value for adjustment;
adjusting a system clock according to the time offset value for adjustment and the frequency offset value for adjustment, and switching the system clock from a current clock source to a standby clock source;
the step of smoothing the time offset value and the frequency offset value of the current time to obtain a time offset value and a frequency offset value for adjustment includes:
acquiring a time offset value and a frequency offset value of the current moment through a current clock source;
calculating to obtain a time offset smoothing coefficient and a frequency offset smoothing coefficient according to the time offset value and the frequency offset value of the standby clock source and the time offset value and the frequency offset value of the current clock source;
determining a time offset value for adjustment according to the time offset smoothing coefficient and the time offset value at the current moment; determining a frequency offset value for adjustment according to the frequency offset smoothing coefficient and the frequency offset value at the current moment;
the step of calculating the time offset smoothing coefficient and the frequency offset smoothing coefficient according to the time offset value and the frequency offset value of the standby clock source and the time offset value and the frequency offset value of the current clock source specifically includes:
acquiring time deviation values and frequency deviation values of a plurality of different moments;
smoothing the time deviation values and the frequency deviation values respectively to obtain a time deviation smoothing coefficient and a frequency deviation smoothing coefficient;
the time offset value is obtained by performing difference processing on the time offset value obtained by the current clock source and the time offset value obtained by the standby clock source at the same time;
the frequency offset difference is obtained by performing difference processing on the frequency offset value obtained by the current clock source and the frequency offset value obtained by the standby clock source at the same time.
2. The method of claim 1, wherein the method further comprises:
adopting a GPS or 1588 clock as a current clock source, and adopting an air interface synchronous clock as a standby clock source; when the GPS or 1588 clock is unlocked, switching a system clock; or
An air interface synchronous clock is adopted as a current clock source, and a GPS or 1588 clock is adopted as a standby clock source; and switching the system clock after the GPS or 1588 clock is locked.
3. The method of claim 2, wherein the method further comprises:
when the system clock is switched due to the loss of lock of the GPS or 1588 clock,
the time offset value for adjustment is specifically the sum of the time offset smoothing coefficient and the time offset value at the current moment; and the frequency offset value for adjustment is specifically the sum of the frequency offset smoothing coefficient and the frequency offset value at the current moment.
4. The method of claim 2, wherein the method further comprises:
when the system clock is switched due to the locking of the GPS or 1588 clock,
the time offset value for adjustment is specifically the difference between the time offset value of the current moment and the time offset smoothing coefficient; and the frequency offset value for adjustment is specifically the difference between the frequency offset value of the current time and the frequency offset smoothing coefficient.
5. An apparatus for clock switching, the apparatus comprising:
the offset value acquisition module is used for acquiring a time offset value and a frequency offset value of the current moment through a standby clock source;
the smoothing module is used for respectively smoothing the time offset value and the frequency offset value of the current moment to obtain a time offset value for adjustment and a frequency offset value for adjustment;
the switching module is used for adjusting the system clock according to the time offset value for adjustment and the frequency offset value for adjustment and switching the system clock from the current clock source to the standby clock source;
the offset value acquisition module is also used for acquiring a time offset value and a frequency offset value of the current moment through a current clock source;
the smoothing module is specifically used for calculating a time offset smoothing coefficient and a frequency offset smoothing coefficient according to the time offset value and the frequency offset value of the standby clock source and the time offset value and the frequency offset value of the current clock source;
determining a time offset value for adjustment according to the time offset smoothing coefficient and the time offset value at the current moment; determining a frequency offset value for adjustment according to the frequency offset smoothing coefficient and the frequency offset value at the current moment;
the smoothing module comprises a smoothing coefficient determining module, and the smoothing coefficient determining module is used for acquiring time offset values and frequency offset values of a plurality of different moments;
smoothing the time deviation values and the frequency deviation values respectively to obtain a time deviation smoothing coefficient and a frequency deviation smoothing coefficient;
the time offset value is obtained by performing difference processing on the time offset value obtained by the current clock source and the time offset value obtained by the standby clock source at the same time;
the frequency offset difference is obtained by performing difference processing on the frequency offset value obtained by the current clock source and the frequency offset value obtained by the standby clock source at the same time.
6. A base station, characterized in that the base station performs clock switching by using the clock switching apparatus of claim 5.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106658626A CN106658626A (en) | 2017-05-10 |
| CN106658626B true CN106658626B (en) | 2020-12-22 |
Family
ID=57319314
Family Applications (1)
| 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 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106658626B (en) |
| WO (1) | WO2016184148A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4120754A4 (en) * | 2020-03-31 | 2023-07-26 | Huawei Technologies Co., Ltd. | Clock calibration method and apparatus |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162959A (en) * | 2007-10-19 | 2008-04-16 | 中兴通讯股份有限公司 | Clock master-slave phase difference automatic measurement and compensation process |
| CN101521565A (en) * | 2008-02-26 | 2009-09-02 | 华为技术有限公司 | Main/standby system clock seamless switching method, device and communication equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7089442B2 (en) * | 2003-02-07 | 2006-08-08 | Rambus Inc. | Fault-tolerant clock generator |
| CN100369441C (en) * | 2003-12-24 | 2008-02-13 | 烽火通信科技股份有限公司 | Damage-free switching method for main and spare synchronous digital series device timing source |
| US8953644B2 (en) * | 2011-12-27 | 2015-02-10 | Intel Corporation | Multi-protocol I/O interconnect time synchronization |
| CN102769906B (en) * | 2012-05-29 | 2018-09-25 | 南京中兴软件有限责任公司 | A kind of synchronous method of family type base station and family type base station |
-
2015
- 2015-10-29 CN CN201510724300.9A patent/CN106658626B/en active Active
-
2016
- 2016-01-14 WO PCT/CN2016/070870 patent/WO2016184148A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162959A (en) * | 2007-10-19 | 2008-04-16 | 中兴通讯股份有限公司 | Clock master-slave phase difference automatic measurement and compensation process |
| CN101521565A (en) * | 2008-02-26 | 2009-09-02 | 华为技术有限公司 | Main/standby system clock seamless switching method, device and communication equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016184148A1 (en) | 2016-11-24 |
| CN106658626A (en) | 2017-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110213808B (en) | Network access control method and device, computer readable medium and electronic equipment | |
| US9888416B2 (en) | Multi-channel predistortion method and apparatus | |
| TWI400982B (en) | Commnication apparatus and method for integrating cell measurement procedures | |
| US11202237B2 (en) | Method for preventing an inter-rat change from being triggered and communications apparatus utilizing the same | |
| WO2008036961A3 (en) | Method and apparatus for resource management | |
| RU2680084C2 (en) | Autonomous handover, methods and devices for handover processing for user equipment (ue) in trunking group | |
| CN107046699B (en) | Wireless terminal roaming method and device | |
| EP3352506A1 (en) | Method for predicting and reporting signal strength of cell and user equipment | |
| EP3046359A1 (en) | Different frequency measurement and evaluation method and apparatus of cluster answering user | |
| CN103596227A (en) | Network handover method and system | |
| TW200810442A (en) | Apparatus and method for efficient inter radio access technology operation | |
| CN106658626B (en) | Clock switching method, device and base station | |
| TW201328268A (en) | Enhanced multiple SIM time tracking | |
| WO2013189441A2 (en) | Method and device for adaptive adjustment of measurement period of neighbouring cell | |
| WO2013123821A1 (en) | Method and device for controlling cell reselection | |
| JP2013143600A (en) | Radio communication device and radio communication method | |
| WO2018228045A1 (en) | Radio link monitoring method and apparatus | |
| WO2013004196A1 (en) | Interference detection method for wireless communication device and wireless communication device | |
| WO2019218279A1 (en) | Methods and apparatus for cell re-selection in new radio system | |
| US20180191487A1 (en) | Frequency offset correction in narrowband machine-to-machine | |
| CN107371232A (en) | A kind of processing method and processing device of the transmission time interval of synchronizing information | |
| WO2019145855A1 (en) | Adjusting an error vector measure (evm) window | |
| CN103609176A (en) | Reference clock management | |
| CN106612524A (en) | Resource block RB configuration method and device | |
| CN103188669B (en) | 2G or 3G mobile card is made to access the method for LTE network, system and mobile terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |