CN102932906A - Method and device for locking failure judgment and synchronous maintenance by global position system (GPS) - Google Patents
Method and device for locking failure judgment and synchronous maintenance by global position system (GPS) Download PDFInfo
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- CN102932906A CN102932906A CN2011102297413A CN201110229741A CN102932906A CN 102932906 A CN102932906 A CN 102932906A CN 2011102297413 A CN2011102297413 A CN 2011102297413A CN 201110229741 A CN201110229741 A CN 201110229741A CN 102932906 A CN102932906 A CN 102932906A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0658—Clock or time synchronisation among packet nodes
- H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
- H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0644—External master-clock
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Abstract
The invention discloses a method for locking failure judgment and synchronous maintenance by a global position system (GPS), wherein all base stations are connected in advance through ports X2 to form a GPS clock network. The method comprises the steps of: sending test frames to all adjacent GPS sties by each GPS site periodically or according to demands; for each GPS site, judging whether the GPS site is synchronous to each adjacent GPS site according to the transmission time and receiving time of the test frames and the arrival time of test response frames; judging whether more than one half of adjacent GPS sites are synchronous to the GPS site; and if so, judging that the GPS site is a locked site, or else, judging that the GPS site is an unlocked site. According to the invention, whether the base station truly locks the GPS or not can be judged in TDD LTE (Time Division Duplex Long Term Evolution) wireless communication, or the base station can be ensured not to be out of service when some GPS sites go wrong.
Description
Technical field
The present invention relates to communication technical field, relate in particular to method and the device of a kind of global positioning system lockout failure judgement and synchronization.
Background technology
TDD (Time Division Duplexing, time division duplex) LTE (Long Term Evolution, Long Term Evolution) is a kind of wireless communication system, in this system, be a very important step synchronously, not synchronously, TDD LTE just at all can't networking, not not synchronously, can bring the serious phase mutual interference of each residential quarter, cause handoff failure, flow decline etc. problem, that is to say, be an important technical foundation of TDD LTE system synchronously.
In practice, the lock condition that can find GPS (global positioning system) can not feeding back from webmaster backstage entirely accurate, sometimes GPS is in the state of an open circuit, perhaps connect in the also not exclusively good situation, equipment also can lock GPS, background net management does not have the GPS alarm to show, but in fact this GPS connection base station is that more serious timing offset is arranged.There is disturbed condition in another situation when the GPS frequency exactly, causes the gps signal of part website fluctuation to occur, also can cause these websites and not exclusively and other website synchronous.
Because GPS arranges and generally is installed in outdoorly, is subjected to the impact of various conditions, install, disturb, agingly wait the many factors impact, certain probability of malfunction is arranged, and because the numerous fault rates that greatly increase of website.
Problem for this GPS appearance itself, website oneself might can't be judged, in case this phenomenon occurs, background net management is not owing to there is the alarm indication so, basically be a blind state, how from how many thousand stations, this problematic station to be found out? even if background net management has the alarm indication in addition, before not solving the GPS stationary problem, the base station that goes wrong for GPS, how to allow its keep with other base station synchronously, don't you affect the performance of whole network? at present, for these two problems good solution is arranged not yet.
Summary of the invention
In view of above-mentioned analysis, the present invention aims to provide that a kind of global positioning system lockout failure is judged and method and the device of synchronization, in order to solve exist in the prior art can not judge the base station whether really lock the GPS website and after GPS goes wrong, may move back clothes problem.
Purpose of the present invention mainly is achieved through the following technical solutions:
The invention provides the method for a kind of global position system GPS lockout failure judgement and synchronization, in advance each base station is connected by the X2 mouth, form the gps clock network, then described method comprises:
Each GPS website is by the cycle or send test frame on demand all GPS adjacent area websites;
For each GPS website, the time of advent of transmitting time, time of reception and test response frame by test frame, judge whether this GPS website is synchronous with each GPS adjacent area website;
Judge whether that GPS adjacent area website over half and this GPS website are all synchronous: if judge that then this GPS website is the locking website, otherwise judge that this GPS website is the losing lock website.
Further, for the nonsynchronous GPS of this GPS adjacent area website, judge further whether this GPS adjacent area website synchronous with its GPS adjacent area website, to determine that whether this GPS adjacent area website is as the losing lock website.
Further, also comprise:
For a losing lock website, the timestamp that provides by GPS adjacent area website or predetermined GPS token website is judged the drift situation of own clock.Specifically comprise: according to the time that reaches of transmitting time, GPS adjacent area website or the predetermined GPS token website feedback test response frame of this GPS website, calculate the theoretical time of reception of GPS adjacent area website or predetermined GPS token website;
Calculate the poor of the theoretical time of reception of GPS adjacent area website and actual time of reception, perhaps, the theoretical time of reception of predetermined GPS token website and actual time of reception poor, obtain this GPS website and GPS adjacent area website or and predetermined GPS token website clock difference;
According to this clock difference the time of this losing lock website is proofreaied and correct, reach synchronous with GPS adjacent area website or predetermined GPS token website.
Further, judge whether GPS website and each GPS adjacent area website specifically comprise synchronously:
For each transmission test frame, stand firm time that reaches of feedback test response frame according to transmitting time, this GPS adjacent area of this GPS website, calculate the theoretical time of reception of this GPS adjacent area website;
Calculate the poor of the theoretical time of reception of this GPS adjacent area website and actual time of reception, obtain the clock difference of this GPS website and this GPS adjacent area website;
When this clock difference continuous several times during greater than reservation threshold, judge that this GPS website is asynchronous with this GPS adjacent area website.
Further, also comprise:
If just have the GPS adjacent area website of half and this GPS website all synchronous, judge further then whether predetermined GPS token website is synchronous with this GPS website, if so, judge that then the GPS website is the locking website, otherwise judge that this GPS website is the losing lock website.
The present invention also provides the system of a kind of global position system GPS lockout failure judgement and synchronization, in advance each base station is connected by the X2 mouth, forms the gps clock network, and then described system comprises: test initiation module and test judge module, wherein,
Initiation module is used for triggering each GPS website by the cycle or sends test frame to all GPS adjacent area websites on demand;
The test judge module is used for for each GPS website, the time of advent of transmitting time, time of reception and test response frame by test frame, judges whether this GPS website is synchronous with each GPS adjacent area website; And judge whether that GPS adjacent area website over half and this GPS website are all synchronous: if judge that then this GPS website is the locking website, otherwise judge that this GPS website is the losing lock website.
Further, described test judge module also is used for, for the nonsynchronous GPS of this GPS adjacent area website, judge further whether this GPS adjacent area website synchronous with its GPS adjacent area website, to determine that whether this GPS adjacent area website is as the losing lock website.
Further, described test judge module also is used for, and for a losing lock website, the timestamp that provides by GPS adjacent area website or predetermined GPS token website is judged the drift situation of own clock.
Beneficial effect of the present invention is as follows:
The present invention can solve how to judge in TDD LTE radio communication whether GPS really is in the lock state, and how to keep the base station not move back the problem of clothes after some GPS goes wrong.
Other features and advantages of the present invention will be set forth in the following description, and becoming apparent from specification of part perhaps understood by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of writing, claims and accompanying drawing.
Description of drawings
Fig. 1 is the schematic flow sheet of the described method of the embodiment of the invention;
Fig. 2 is the structural representation of the described system of the embodiment of the invention.
Embodiment
Specifically describe the preferred embodiments of the present invention below in conjunction with accompanying drawing, wherein, accompanying drawing consists of the application's part, and is used for explaining together with embodiments of the present invention principle of the present invention.For clear and simplification purpose, when it may make theme of the present invention smudgy, with specifying in detail of known function and structure in the omission device described herein.
Because the structural design of existing LTE becomes a flat network, each eNodeB (evolved Node B, the title of base station among the LTE) directly links to each other by X2 mouth interface, and the switching of X2 mouth is arranged again between the adjacent area, must keep X2 synchronously.The embodiment of the invention need to connect each eNodeB by the X2 mouth, form the clock network of GPS more than according to the X2 network.
1 pair of described method of the embodiment of the invention is elaborated at first, by reference to the accompanying drawings.
As shown in Figure 1, Fig. 1 is the schematic flow sheet of the described method of the embodiment of the invention, specifically can comprise the steps:
Step 101: for the ease of implementing, at first set a synchronizing station point set and a step-out set of sites, wherein, the synchronizing station point set is used for the normal locking of record website, and the step-out set of sites is used for record losing lock website; And, synchronizing station point set initial condition can be that all GPS websites are all added, and suppose that it all is the locking website that these GPS stand firm, progressively eliminating in the follow-up deterministic process is not that the real website that locks is the losing lock website again, and the losing lock website is joined in the step-out set of sites; Synchronizing station point set initial condition also can be that a GPS website does not add yet, and progressively adds the website of normal locking in the follow-up deterministic process; Can also be that the GPS website of selecting first several normal lockings joins synchronizing station point and concentrates, and then constantly add GPS websites of other normal lockings in the follow-up deterministic process; Adopt last a kind of mode to set the initial condition of synchronizing station point set in the embodiment of the invention, select the website of 3 normal lockings and it is joined synchronizing station point and concentrate;
Step 102: as a preferred embodiment of the present invention, select at random a GPS website as GPS token website from synchronizing station point is concentrated; Can certainly omit this step, namely carry out synchronism detection according to all GPS adjacent area websites;
Step 103: each GPS website (comprise initial adding synchronizing station point set and not do not add) is respectively by the cycle or on demand to oneself all GPS adjacent area websites and GPS token website transmission test frame;
Step 104: send mirror according to Ethernet, can the GPS website judge that with synchronous judgement this GPS website is synchronous with GPS adjacent area website by timestamp? if asynchronous, execution in step 105, otherwise execution in step 106;
Judge whether synchronous process specifically comprises for GPS website and each GPS adjacent area website: send test frame as example (supposition GPS website A) take some GPS websites, if setting the transmitting time of GPS website A is T1, the time of reception of GPS adjacent area website B is T2, the T3 time of advent of GPS adjacent area website B feedback test response frame (being the time that the test response frame arrives GPS website A), the time of reception of GPS adjacent area website B is T2 ' in theory, theoretical time of reception is Δ t with the actual clock difference that receives, T2 '=T1+ (T1-T3)/2 then, Δ t=|T2-T2 ' |; If Δ t continuous n time (for example 3 times) greater than reservation threshold T, thinks that then losing lock appears in this GPS adjacent area website, namely this GPS adjacent area website is asynchronous with GPS website A, otherwise this GPS adjacent area website and GPS website A are synchronous; For the whether synchronous judgement of GPS website A and other GPS adjacent area websites and GPS token, identical with the previous examples process;
Wherein, judgment principle is synchronously: majority rule, namely, if have GPS over half adjacent area website and this GPS website all synchronous, can judge that then this GPS website is synchronous, think that namely this GPS website is to lock website and it is joined synchronizing station point to concentrate, otherwise, judge that this GPS website joins in the step-out set of sites as the losing lock website and with it.For the synchronous situation of GPS adjacent area website over half and this GPS website is arranged just, need also at this time to judge whether this GPS token website is also synchronous with this GPS website, if, can judge that then this GPS website is synchronous, think that namely this GPS website is to lock website and it is joined synchronizing station point to concentrate, otherwise, judge that this GPS website joins in the step-out set of sites as the losing lock website and with it.
Step 105: if this GPS website belonged to the synchronizing station point set originally, then this GPS website is concentrated from synchronizing station point and removed, put into the step-out set of sites, and its state changes other GPS adjacent area websites of dependence into or GPS token website is synchronous, if this GPS website is not concentrated at synchronizing station point, then directly this GPS website is put into the step-out set of sites; This GPS website is put into execution in step 108 after the step-out set of sites, and namely after this GPS website recovers (deviation less than reservation threshold after) revert to the synchronizing station point set from the step-out set of sites;
Need to prove that for the GPS website of putting into the step-out set of sites, i.e. losing lock website can be judged by the timestamp that GPS adjacent area website or predetermined GPS token website provide the drift situation of own clock, making it also can be synchronous under out-of-lock condition; Specifically comprise: according to the time that reaches of transmitting time, GPS adjacent area website or the predetermined GPS token website feedback test response frame of this GPS website, calculate the theoretical time of reception of GPS adjacent area website or predetermined GPS token website; Then calculate actual time of reception poor of the theoretical time of reception of GPS adjacent area website or predetermined GPS token website and GPS adjacent area website or predetermined GPS token website, obtain this GPS website and GPS adjacent area website or predetermined GPS token website clock difference (clock difference calculates referring to step 104); And then according to this clock difference the time of this losing lock website is proofreaied and correct, make it under out-of-lock condition, to reach synchronous with GPS adjacent area website or predetermined GPS token website.
Step 106: for the nonsynchronous GPS of this GPS website adjacent area website (for example GPS website B), confirm whether GPS website B synchronous with its GPS adjacent area website, if so, execution in step 107; Otherwise execution in step 108;
Step 107: GPS website B is joined synchronizing station point concentrate;
Step 108: again initiate synchronism detection, namely forward step 104 to.
Next 2 pairs of described devices of the embodiment of the invention are elaborated by reference to the accompanying drawings.
As shown in Figure 2, Fig. 2 is the structural representation of the described device of the embodiment of the invention, specifically can comprise: test initiation module and test judge module, wherein,
(1) initiation module is used for triggering each GPS website by the cycle or sends test frame to all GPS adjacent area websites on demand;
(2) the test judge module is used for for each GPS website, the time of advent of transmitting time, time of reception and test response frame by test frame, judges whether this GPS website is synchronous with each GPS adjacent area website; And judge whether that GPS adjacent area website over half and this GPS website are all synchronous: if judge that then the GPS website is the locking website, otherwise judge that this GPS website is the losing lock website.
Wherein, judge whether synchronous process specifically comprises for GPS website and each GPS adjacent area website: send test frame as example (supposition GPS website A) take some GPS websites, if setting the transmitting time of GPS website A is T1, the time of reception of GPS adjacent area website B is T2, the T3 time of advent of GPS adjacent area website B feedback test response frame (being the time that the test response frame arrives GPS website A), the time of reception of GPS adjacent area website B is T2 ' in theory, theoretical time of reception is Δ t with the actual clock difference that receives, T2 '=T1+ (T1-T3)/2 then, Δ t=|T2-T2 ' |; If Δ t continuous n time (for example 3 times) greater than reservation threshold T, thinks that then losing lock appears in this GPS adjacent area website, namely this GPS adjacent area website is asynchronous with GPS website A, otherwise this GPS adjacent area website and GPS website A are synchronous; For the whether synchronous judgement of GPS website A and other GPS adjacent area websites and GPS token, identical with the previous examples process;
Wherein, judgment principle is synchronously: majority rule, namely, if have GPS over half adjacent area website and this GPS website all synchronous, can judge that then this GPS website is synchronous, think that namely this GPS website is to lock website and it is joined synchronizing station point to concentrate, otherwise, judge that this GPS website joins in the step-out set of sites as the losing lock website and with it.For the synchronous situation of GPS adjacent area website over half and this GPS website is arranged just, need also at this time to judge whether this GPS token website is also synchronous with this GPS website, if, can judge that then this GPS website is synchronous, think that namely this GPS website is to lock website and it is joined synchronizing station point to concentrate, otherwise, judge that this GPS website joins in the step-out set of sites as the losing lock website and with it.
For with the nonsynchronous GPS of this GPS adjacent area website, the test judge module will judge further whether this GPS adjacent area website synchronous with its GPS adjacent area website, to determine that whether this GPS adjacent area website is as the losing lock website.
For a losing lock website, the test judge module also will be judged by the timestamp that GPS adjacent area website or predetermined GPS token website provide the drift situation of own clock, namely according to the time that reaches of transmitting time, GPS adjacent area website or the predetermined GPS token website feedback test response frame of this GPS website, calculate the theoretical time of reception of GPS adjacent area website or predetermined GPS token website; Then calculate actual time of reception poor of the theoretical time of reception of GPS adjacent area website or predetermined GPS token website and GPS adjacent area website or predetermined GPS token website, obtain this GPS website and GPS adjacent area website or predetermined GPS token website clock difference; And then according to this clock difference the time of this losing lock website is proofreaied and correct, make it under out-of-lock condition, to reach synchronous with GPS adjacent area website or predetermined GPS token website.。
For the specific implementation process of the described system of the embodiment of the invention, owing to be described in detail so locate to repeat no more in the said method.
In sum, the embodiment of the invention provides a kind of global positioning system lockout failure to judge and method and the device of synchronization, has utilized that the characteristic of the flattening network of X2 has formed the gps clock resource pool among the LTE; Each GPS website judges by the time of advent of transmitting time, time of reception and the test response frame of test frame whether this GPS website is synchronous with GPS adjacent area website, and namely whether GPS really is in the lock state; If be in out-of-lock condition at the GPS website, namely the incorrect locking GPS in base station carries out synchronization by the timestamp that utilizes GPS adjacent area website or GPS token website to provide, and reaches the purpose of not moving back clothes.At some GPS website intensive place is installed, can also plays some website that GSP is not installed is carried out synchronous function.
The above; only for the better embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (9)
1. a global position system GPS lockout failure is judged and the method for synchronization, it is characterized in that, in advance each base station is connected by the X2 mouth, forms the gps clock network, and then described method comprises:
Each GPS website is by the cycle or send test frame on demand all GPS adjacent area websites;
For each GPS website, the time of advent of transmitting time, time of reception and test response frame by test frame, judge whether this GPS website is synchronous with each GPS adjacent area website;
Judge whether that GPS adjacent area website over half and this GPS website are all synchronous: if judge that then this GPS website is the locking website, otherwise judge that this GPS website is the losing lock website.
2. method according to claim 1 is characterized in that, for the nonsynchronous GPS of this GPS adjacent area website, judge further whether this GPS adjacent area website synchronous with its GPS adjacent area website, to determine that whether this GPS adjacent area website is as the losing lock website.
3. method according to claim 1 and 2 is characterized in that, also comprises:
For a losing lock website, the timestamp that provides by GPS adjacent area website or predetermined GPS token website is judged the drift situation of own clock.
4. method according to claim 3 is characterized in that, specifically comprises:
According to the time that reaches of transmitting time, GPS adjacent area website or the predetermined GPS token website feedback test response frame of this GPS website, calculate the theoretical time of reception of GPS adjacent area website or predetermined GPS token website;
Calculate the poor of the theoretical time of reception of GPS adjacent area website and actual time of reception, perhaps, the theoretical time of reception of predetermined GPS token website and actual time of reception poor, obtain this GPS website and GPS adjacent area website or and predetermined GPS token website clock difference;
According to this clock difference the time of this losing lock website is proofreaied and correct, reach synchronous with GPS adjacent area website or predetermined GPS token website.
5. method according to claim 1 is characterized in that, judges whether GPS website and each GPS adjacent area website specifically comprise synchronously:
For each transmission test frame, stand firm time that reaches of feedback test response frame according to transmitting time, this GPS adjacent area of this GPS website, calculate the theoretical time of reception of this GPS adjacent area website;
Calculate the poor of the theoretical time of reception of this GPS adjacent area website and actual time of reception, obtain the clock difference of this GPS website and this GPS adjacent area website;
When this clock difference continuous several times during greater than reservation threshold, judge that this GPS website is asynchronous with this GPS adjacent area website.
6. method according to claim 1 is characterized in that, also comprises:
If just have the GPS adjacent area website of half and this GPS website all synchronous, judge further then whether predetermined GPS token website is synchronous with this GPS website, if so, judge that then the GPS website is the locking website, otherwise judge that this GPS website is the losing lock website.
7. a global position system GPS lockout failure is judged and the system of synchronization, it is characterized in that, in advance each base station is connected by the X2 mouth, forms the gps clock network, and then described system comprises: test initiation module and test judge module, wherein,
Initiation module is used for triggering each GPS website by the cycle or sends test frame to all GPS adjacent area websites on demand;
The test judge module is used for for each GPS website, the time of advent of transmitting time, time of reception and test response frame by test frame, judges whether this GPS website is synchronous with each GPS adjacent area website; And judge whether that GPS adjacent area website over half and this GPS website are all synchronous: if judge that then this GPS website is the locking website, otherwise judge that this GPS website is the losing lock website.
8. system according to claim 7, it is characterized in that described test judge module also is used for, for the nonsynchronous GPS of this GPS adjacent area website, further judge whether this GPS adjacent area website is synchronous with its GPS adjacent area website, to determine that whether this GPS adjacent area website is as the losing lock website.
9. according to the described system of claim, it is characterized in that described test judge module also is used for, for a losing lock website, the timestamp that provides by GPS adjacent area website or predetermined GPS token website is judged the drift situation of own clock.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110229741.3A CN102932906B (en) | 2011-08-11 | 2011-08-11 | Global positioning system lockout failure judges and the synchronous method and device kept |
| PCT/CN2012/073212 WO2012155700A1 (en) | 2011-08-11 | 2012-03-28 | Method and device for locking failure determination and synchronization maintenance for global positioning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110229741.3A CN102932906B (en) | 2011-08-11 | 2011-08-11 | Global positioning system lockout failure judges and the synchronous method and device kept |
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| CN102932906B CN102932906B (en) | 2017-11-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109661027A (en) * | 2017-10-10 | 2019-04-19 | 大唐移动通信设备有限公司 | A kind of network equipment working state determines method and device |
| CN115022956A (en) * | 2022-04-27 | 2022-09-06 | 海能达通信股份有限公司 | Synchronization method, system, electronic device and storage medium of self-organizing network |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1866814A (en) * | 2005-05-17 | 2006-11-22 | 上海华为技术有限公司 | Clock locking method and its system |
| JP2009177532A (en) * | 2008-01-24 | 2009-08-06 | Sumitomo Electric Ind Ltd | Base station device |
| CN101562822A (en) * | 2008-04-16 | 2009-10-21 | 大唐移动通信设备有限公司 | Method and device for detecting asynchronization between base stations |
| CN102098716A (en) * | 2009-12-10 | 2011-06-15 | 华为技术有限公司 | Method and device for detecting desynchronizing of base station |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001268628A (en) * | 2000-03-21 | 2001-09-28 | Mitsubishi Electric Corp | Inter-base station synchronization system |
| CN101447824A (en) * | 2007-11-26 | 2009-06-03 | 大唐移动通信设备有限公司 | Method for finding GPS timing offset of TD-SCDMA base station and device thereof |
| CN101369824B (en) * | 2008-10-21 | 2012-03-28 | 北京北方烽火科技有限公司 | Base station step-out detection apparatus and method |
| CN102149186B (en) * | 2010-02-10 | 2013-10-09 | 上海华为技术有限公司 | Null interface synchronization method and equipment of time division system |
-
2011
- 2011-08-11 CN CN201110229741.3A patent/CN102932906B/en active Active
-
2012
- 2012-03-28 WO PCT/CN2012/073212 patent/WO2012155700A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1866814A (en) * | 2005-05-17 | 2006-11-22 | 上海华为技术有限公司 | Clock locking method and its system |
| JP2009177532A (en) * | 2008-01-24 | 2009-08-06 | Sumitomo Electric Ind Ltd | Base station device |
| CN101562822A (en) * | 2008-04-16 | 2009-10-21 | 大唐移动通信设备有限公司 | Method and device for detecting asynchronization between base stations |
| CN102098716A (en) * | 2009-12-10 | 2011-06-15 | 华为技术有限公司 | Method and device for detecting desynchronizing of base station |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109661027A (en) * | 2017-10-10 | 2019-04-19 | 大唐移动通信设备有限公司 | A kind of network equipment working state determines method and device |
| CN109661027B (en) * | 2017-10-10 | 2020-10-16 | 大唐移动通信设备有限公司 | Method and device for determining working state of network equipment |
| CN115022956A (en) * | 2022-04-27 | 2022-09-06 | 海能达通信股份有限公司 | Synchronization method, system, electronic device and storage medium of self-organizing network |
| CN115022956B (en) * | 2022-04-27 | 2024-01-12 | 海能达通信股份有限公司 | Synchronization method, system, electronic equipment and storage medium of self-organizing network |
Also Published As
| Publication number | Publication date |
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| WO2012155700A1 (en) | 2012-11-22 |
| CN102932906B (en) | 2017-11-03 |
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