CN108260200A - The method and system that a kind of more synchronisation sources synchronize - Google Patents
The method and system that a kind of more synchronisation sources synchronize Download PDFInfo
- Publication number
- CN108260200A CN108260200A CN201810163340.4A CN201810163340A CN108260200A CN 108260200 A CN108260200 A CN 108260200A CN 201810163340 A CN201810163340 A CN 201810163340A CN 108260200 A CN108260200 A CN 108260200A
- Authority
- CN
- China
- Prior art keywords
- gps
- module
- 1pps
- port
- pps
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
-
- 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
Abstract
The present invention provides the method and system that a kind of more synchronisation sources synchronize, and each single information source plate is attached by way of ring in more synchronisation source synchronization systems；The information source plate includes baseband processing module and timing generation distribution module；Wherein, the timing generation distribution module includes pulse per second (PPS) selecting module, K1 switches, pulse per second (PPS) generation module, K2 switch；The pulse per second (PPS) selecting module is connected with K1 switches；The K1 switchs one end connection baseband processing module, one end connection 1pps signal ports；The pulse per second (PPS) generation module receives 40ms the or 80ms signals of the output of baseband processing module, generates 1pps signals and exports to K2 switches.The method and system synchronized by more synchronisation sources provided by the invention can reach including GPS, 1588 and aerial synchronous, while support each information source plate synchronization distribution function, reach reduction hardware cost, improve the effect of synchronous success rate.
Description
Technical field
The present invention relates to moving communicating fields, and in particular to the method and system that a kind of more synchronisation sources synchronize.
Background technology
Base station equipment needs to synchronize in the air, in the case where more base station information source plates share cabinet, needs to carry out frame between base station
Head is synchronous, and method is mostly GPS distributions or respectively synchronizes, but existing synchronous method is higher there are cost at present, it is synchronous into
The low problem of power.
Invention content
In view of the above-mentioned problems, the present invention proposes the method and system that a kind of more synchronisation sources synchronize, reach different synchronisation sources
It is synchronous, while support various information source plate synchronization distribution function, it, just can be so that other letters as long as can be synchronized there are one information source plate
Source plate normal synchronized.Information source plate cost is reduced, while improve the technique effect of synchronous success rate with effective, preferably applied
More base station information source plates are total to the situation of cabinet.
To solve prior art problem, the technical solution adopted in the present invention is：
A kind of method that more synchronisation sources synchronize, includes the following steps：
Step 1：GPS is preferential, first runs a GPS or 1588 and synchronizes, the 1pps used derives from GPS module；It is transporting
When row GPS is synchronized, K2 switchings to port 3 (are indicated without output)；K1 switchings to 1 port (represent to use 1pps for
The 1pps that GPS is generated)；
Step 2：GPS and 1588 performs synchronization, waits for preset duration；Terminate flow if synchronizing successfully；If
If GPS or 1588 synchronization failures, aerial synchronous flow is performed, if synchronizing success in the air, is transferred to step 3, otherwise
Perform step 4；
Preferably, waiting time needs to ensure GPS module energy normal operation, it is proposed that needs more than 1.5 times durations；
Step 3：Success is synchronized when in the air, according to the frequency point of synchronized cells, carries out switching；F frequencies cell and D frequency cells
It is asynchronous, it is otherwise 2 ports so needing K2 switchings to 1 port；
Step 4：When aerial synchronization failure, then using the 1pps of IN_SON, using the aerial synchronous conduct of other information source plates
Synchronisation source carries out GPS/1588 and synchronizes flow；Before switching GPS/1588 is synchronized, need K2 switchings to port 1, K1 is opened
Concern changes to port 2, represents using supervisory IN_SON as synchronous 1pps sources；
Preferably, duration to be synchronized is waited to need to ensure to be more than to intercept maximum time and GPS synchronization maximum times, to prevent
Occur running speed due to various information source plate, cause process timeout issue；
Step 5：If synchronous success or failure, terminates flow.
The method that a kind of more synchronisation sources of the present invention synchronize, the system used are described more for multiple single information source plates
A list information source plate is attached by way of ring；
Preferably, the multiple information source plate is not concerned with master-slave relationship.
Single information source plate, including：Baseband processing module and timing generation distribution module；
The baseband processing module, for Base-Band Processing, aerial synchronization, GPS synchronizations, BTS service time control；
The timing generation distribution module includes pulse per second (PPS) selecting module, K1 switches, pulse per second (PPS) generation module, K2 switch；
Wherein, the pulse per second (PPS) selecting module receives input signal IN_GPS_S, IN_GPS；The K1 switchs one end connection Base-Band Processing
Module, one end connection 1pps signal ports, for selecting IN_SON 1pps signals related to GPS；The pulse per second (PPS) generation module
40ms the or 80ms signals of the output of baseband processing module are received, generate 1pps signals as output；The K2 switchs to select
The signal source of OUT_SON is selected, is configured and selected by OAM.
Preferably, the 1pps signals source has 3, and port 1 is the output terminal of pulse per second (PPS) selecting module, and port 2 is IN_
SON signals, port 3 are sky, indicate no output；The K1 switches are for selecting IN_SON 1pps signals related to GPS, by OAM
Control；
Preferably, the OUT_SON signals source has 3, and port 1 is IN_SON, and port 2 is wonderful pulse generation module
Output terminal, port 3 are sky, indicate no output.
The beneficial effects of the invention are as follows：It can reach including GPS, 1588 and aerial synchronization, while support that each information source plate is same
Distribution function is walked, reaches reduction hardware cost, improves the effect of synchronous success rate.
Description of the drawings
Fig. 1 is selection figure inside information source plate 1pps；
Fig. 2 synchronizes ring figure for information source plate；
Fig. 3 is flow diagram of the present invention；
Fig. 4 is re-synchronizes flow.
Specific embodiment
In order to which those skilled in the art is enable more to understand technical solution of the present invention and content, 1-4 below in conjunction with the accompanying drawings
The present invention is further analyzed.
Now the specific embodiment of the present invention is described as follows:
As shown in Figs 1-4, the method and system that a kind of more synchronisation sources synchronize：
With reference to figure 1, Fig. 1 shows to select inside single information source plate 1pps.As shown in Figure 1, according to provided by the invention mostly synchronous
Single information source plate of source synchronization system, the information source plate include：Baseband processing module and timing generation distribution module；At the base band
Module is managed, for Base-Band Processing, aerial synchronization, GPS synchronizations, BTS service time control etc.；The chip that can be used but be not limited to
Platform includes the processing platforms such as BCM, TI, Freescale.
The timing generation distribution module includes pulse per second (PPS) selecting module, K1 switches, pulse per second (PPS) generation module, K2 switch；
Wherein, described pulse per second (PPS) selecting module one end receives synchronizing signal IN_GPS_S, IN_GPS, another termination K1 switches；The K1
Switch one end connection baseband processing module, one end connection 1pps signal ports, for selecting IN_SON 1pps letters related to GPS
Number；The pulse per second (PPS) generation module receives 40ms the or 80ms signals of the output of baseband processing module, generates 1pps signal conducts
Output；The K2 switchs the signal source for selecting OUT_SON.
Wherein, the pulse per second (PPS) selecting module, which synchronizes, judges that selection two 1pps of IN_GPS and IN_GPS_S whether there is,
When IN_GPS presence, then IN_GPS is selected to export；When IN_GPS is not present, then IN_GPS_S is selected to export.Wherein, judging
In the presence of 1pps, by N number of continuous 1pps pulse detections, when 1pps pulses occur in continuous n times, then it is assumed that 1pps signals exist.
Wherein, IN_SON is the 1pps timings that other information source plate air interface synchronizations generate；IN_GPS_S is other information source plates GPS
It is synchronous or 1588 synchronize after；The 1pps that the 1pps of distribution, IN_GPS are GPS or 1588 modules directly generate；OUT_SON is itself
Eat dishes without rice or wine after air interface synchronization alignment 1pps or IN_SON 1pps signals；After OUT_GPS_S is selection IN_GPS_S or IN_GPS
A 1pps signal.
Wherein, the 1pps signals source has 3, and port 1 is the output terminal of pulse per second (PPS) selecting module, and port 2 is IN_
SON signals, port 3 are sky, indicate no output；The K1 switches are for selecting IN_SON 1pps signals related to GPS, by OAM
Control；
Wherein, the OUT_SON signals source has 3, and port 1 is IN_SON, and port 2 is pulse per second (PPS) generation module, is held
Mouth 3 is sky, indicates no output.
With reference to figure 2, Fig. 2 shows plate grades to cascade block diagram.As shown in Fig. 2, information source plate is attached by the way of ring, ensure
Directly can transmit timing, as long as and guarantee there are one information source plate can synchronize, then can carry out time service.Information source plate is allowed to be not related to simultaneously
Note master-slave relationship.
With reference to figure 3, according to more synchronisation source synchronization systems provided by the invention, a kind of more synchronisation source synchronous method are provided, are wrapped
Include following steps：
Step 1：GPS is preferential, first runs a GPS or 1588 and synchronizes, the 1pps used derives from GPS module；It is transporting
When row GPS is synchronized, by K2 switchings to port 3, i.e., without output；K1 switchings use 1pps to be generated for GPS to 1 port
1pps.
Step 2：GPS and 1588 performs synchronization, waits for preset duration；Terminate flow if synchronizing successfully；If
If GPS or 1588 synchronization failures, aerial synchronous flow is performed, if synchronizing success in the air, is transferred to step 3, otherwise
Perform step 4.Wherein, waiting time needs to ensure GPS module energy normal operation, it is proposed that needs more than 1.5 times durations.
Step 3：Success is synchronized when in the air, according to the frequency point of synchronized cells, carries out switching.F frequencies cell and D frequency cells
It is asynchronous, it is otherwise 2 ports so needing K2 switchings to 1 port.
Step 4：When aerial synchronization failure, then using the 1pps of IN_SON, using the aerial synchronous conduct of other information source plates
Synchronisation source carries out GPS/1588 and synchronizes flow；Before switching GPS/1588 is synchronized, need K2 switchings to port 1, K1 is opened
Concern changes to port 2, represents using supervisory IN_SON as synchronous 1pps sources.Wherein, duration to be synchronized is waited to need to ensure
More than maximum time and GPS synchronization maximum times is intercepted, to prevent since various information source plate runs speed, cause process
Timeout issue.
Step 5：If synchronous success or failure, terminates flow.
With reference to figure 4, process is re-synchronized when Fig. 4 shows exception occur.As shown in figure 4, when occurring abnormal, it is same to perform weight
Step, including procedure below：Step 1：There is lock-out in system；Step 2：K2 is switched to K3；Step 3：Execution re-synchronizes, synchronous
The same initial synchronisation of flow.
The method and system that more synchronisation sources provided by the invention synchronize can reach including GPS, 1588 and aerial synchronization,
It supports each information source plate synchronization distribution function simultaneously, reaches reduction hardware cost, improve the effect of synchronous success rate.
It should be noted that described be merely a preferred embodiment of the present invention, it is not intended to limit the scope of the invention,
Every equivalent structure transformation made using description of the invention and accompanying drawing content, it is relevant to be directly or indirectly used in other
Technical field is included within the scope of the present invention.
Claims (7)
1. a kind of method that more synchronisation sources synchronize, includes the following steps：
Step 1：GPS is preferential, first runs a GPS or 1588 and synchronizes, the 1pps used derives from GPS module；In operation GPS
When synchronous, K2 switchings to port 3 (are indicated without output)；To 1 port, (expression uses 1pps to be produced for GPS to K1 switchings
Raw 1pps)；
Step 2：GPS and 1588 performs synchronization, waits for preset duration；Terminate flow if synchronizing successfully；If
If GPS or 1588 synchronization failures, aerial synchronous flow is performed, if synchronizing success in the air, step 3 is transferred to, otherwise performs
Step 4；
Step 3：Success is synchronized when in the air, according to the frequency point of synchronized cells, carries out switching；F frequencies cell is different from D frequency cells
Step is otherwise 2 ports so needing K2 switchings to 1 port；
Step 4：When aerial synchronization failure, then using the 1pps of IN_SON, using the aerial synchronous as synchronization of other information source plates
Source carries out GPS/1588 and synchronizes flow；Before switching GPS/1588 is synchronized, need K2 switchings to port 1, K1 switches are cut
Port 2 is changed to, is represented using supervisory IN_SON as synchronous 1pps sources；
Step 5：If synchronous success or failure, terminates flow.
2. the method that a kind of more synchronisation sources according to claim 1 synchronize, it is characterised in that：In the step 2, wait for
Duration needs to ensure GPS module energy normal operation, it is proposed that needs more than 1.5 times durations.
3. the method that a kind of more synchronisation sources according to claim 1 synchronize, it is characterised in that：In the step 4, wait for
Synchronous duration needs to ensure to be more than to intercept maximum time and GPS synchronization maximum times, to prevent due to various information source plate
Speed is run, causes process timeout issue.
4. a kind of system that more synchronisation sources synchronize, it is characterised in that：Using multiple single information source plates, the multiple list information source plate passes through
The mode of ring is attached；
Single information source plate, including：Baseband processing module and timing generation distribution module；
The baseband processing module, for Base-Band Processing, aerial synchronization, GPS synchronizations, BTS service time control；
The timing generation distribution module includes pulse per second (PPS) selecting module, K1 switches, pulse per second (PPS) generation module, K2 switch；Wherein,
The pulse per second (PPS) selecting module receives input signal IN_GPS_S, IN_GPS；The K1 switchs one end connection baseband processing module,
One end connects 1pps signal ports, for selecting IN_SON 1pps signals related to GPS；The pulse per second (PPS) generation module receives base
40ms the or 80ms signals of the output of tape handling module generate 1pps signals as output；The K2 switchs to select OUT_
The signal source of SON is configured by OAM and selected.
5. the system that a kind of more synchronisation sources according to claim 4 synchronize, it is characterised in that：The multiple information source plate is not related to
Note master-slave relationship.
6. the system that a kind of more synchronisation sources according to claim 4 synchronize, it is characterised in that：The 1pps signals source has
3, port 1 is the output terminal of pulse per second (PPS) selecting module, and port 2 is IN_SON signals, and port 3 is sky, indicates no output；It is described
K1 switches are controlled for selecting IN_SON 1pps signals related to GPS by OAM.
7. the system that a kind of more synchronisation sources according to claim 4 synchronize, it is characterised in that：The OUT_SON signals come
Source has 3, and port 1 is IN_SON, and port 2 is the output terminal of wonderful pulse generation module, and port 3 is sky, indicates no output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810163340.4A CN108260200A (en) | 2018-02-27 | 2018-02-27 | The method and system that a kind of more synchronisation sources synchronize |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810163340.4A CN108260200A (en) | 2018-02-27 | 2018-02-27 | The method and system that a kind of more synchronisation sources synchronize |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108260200A true CN108260200A (en) | 2018-07-06 |
Family
ID=62745582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810163340.4A Pending CN108260200A (en) | 2018-02-27 | 2018-02-27 | The method and system that a kind of more synchronisation sources synchronize |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108260200A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112398568A (en) * | 2020-11-24 | 2021-02-23 | 广东省新一代通信与网络创新研究院 | System and method for synchronizing clocks in multiple cells |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1518375A (en) * | 2003-01-15 | 2004-08-04 | ���ǵ�����ʽ���� | Small base station controller for providing intelligent plate design and its control method |
| CN1731704A (en) * | 2005-08-03 | 2006-02-08 | 中兴通讯股份有限公司 | Method and device for air frame synchronization between TDD-SCDMA base stations |
| CN101035327A (en) * | 2007-04-13 | 2007-09-12 | 华为技术有限公司 | Radio communication system and air interface synchronization method, base station and its controller |
| CN101196548A (en) * | 2007-12-12 | 2008-06-11 | 华为技术有限公司 | Receiving card recognizing method and correlated communication equipment |
| CN101465686A (en) * | 2007-12-19 | 2009-06-24 | 中兴通讯股份有限公司 | Method and apparatus for implementing TD-SCDMA base station synchronization |
| CN201436763U (en) * | 2009-06-17 | 2010-04-07 | 华东电力试验研究院有限公司 | Time synchronizer of electric power system |
| CN102272621A (en) * | 2008-12-31 | 2011-12-07 | 艾比奎蒂数字公司 | Synchronization of separated platforms in an hd radio broadcast single frequency network |
| CN102573046A (en) * | 2012-02-20 | 2012-07-11 | 烽火通信科技股份有限公司 | Mobile communication system and mobile communication method capable of respectively compensating delays of in-band time synchronization interface and out-of-band time synchronization interface |
| JP2015039122A (en) * | 2013-08-19 | 2015-02-26 | 京セラ株式会社 | Gps synchronous base station and base station synchronization system |
| US9426762B2 (en) * | 2012-05-11 | 2016-08-23 | Microsemi Communications, Inc. | Timing synchronization for networks with radio links |
| CN106304162A (en) * | 2016-08-04 | 2017-01-04 | 福建三元达网络技术有限公司 | The method and system of seamless switching synchronisation source |
| CN107534945A (en) * | 2015-08-10 | 2018-01-02 | 华为技术有限公司 | A kind of D2D synchronous method and user equipment, serving cell |
-
2018
- 2018-02-27 CN CN201810163340.4A patent/CN108260200A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1518375A (en) * | 2003-01-15 | 2004-08-04 | ���ǵ�����ʽ���� | Small base station controller for providing intelligent plate design and its control method |
| CN1731704A (en) * | 2005-08-03 | 2006-02-08 | 中兴通讯股份有限公司 | Method and device for air frame synchronization between TDD-SCDMA base stations |
| CN101035327A (en) * | 2007-04-13 | 2007-09-12 | 华为技术有限公司 | Radio communication system and air interface synchronization method, base station and its controller |
| CN101196548A (en) * | 2007-12-12 | 2008-06-11 | 华为技术有限公司 | Receiving card recognizing method and correlated communication equipment |
| CN101465686A (en) * | 2007-12-19 | 2009-06-24 | 中兴通讯股份有限公司 | Method and apparatus for implementing TD-SCDMA base station synchronization |
| CN102272621A (en) * | 2008-12-31 | 2011-12-07 | 艾比奎蒂数字公司 | Synchronization of separated platforms in an hd radio broadcast single frequency network |
| CN201436763U (en) * | 2009-06-17 | 2010-04-07 | 华东电力试验研究院有限公司 | Time synchronizer of electric power system |
| CN102573046A (en) * | 2012-02-20 | 2012-07-11 | 烽火通信科技股份有限公司 | Mobile communication system and mobile communication method capable of respectively compensating delays of in-band time synchronization interface and out-of-band time synchronization interface |
| US9426762B2 (en) * | 2012-05-11 | 2016-08-23 | Microsemi Communications, Inc. | Timing synchronization for networks with radio links |
| JP2015039122A (en) * | 2013-08-19 | 2015-02-26 | 京セラ株式会社 | Gps synchronous base station and base station synchronization system |
| CN107534945A (en) * | 2015-08-10 | 2018-01-02 | 华为技术有限公司 | A kind of D2D synchronous method and user equipment, serving cell |
| CN106304162A (en) * | 2016-08-04 | 2017-01-04 | 福建三元达网络技术有限公司 | The method and system of seamless switching synchronisation source |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112398568A (en) * | 2020-11-24 | 2021-02-23 | 广东省新一代通信与网络创新研究院 | System and method for synchronizing clocks in multiple cells |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101154093B (en) | Method and apparatus for competing for host computer position in parallel system | |
| CN100359956C (en) | Method for implementing synchronization and distance finding in wireless communication system and implementing apparatus thereof | |
| CA1198168A (en) | Power supply systems for use in radio communication system | |
| CN106656336B (en) | The active and standby signal processing method of LTE base station LTE Baseband Processing Unit | |
| CN101471724A (en) | Ascending data synchronization method for TDD system | |
| CN102131211A (en) | Method and device for shutting off downlink service time slot in TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system | |
| CN106341879A (en) | GPS time reference-based multi-point synchronous communication method and device | |
| CN103369662B (en) | Adapter, baseband processing unit and base station system | |
| CN106358283A (en) | Time synchronizing method, base station, transmission equipment and system | |
| WO2016165430A1 (en) | Data transfer method and apparatus, communication system, and computer storage medium | |
| CN109947030A (en) | The method in dynamic following EtherCat bus synchronous period in servo internal control period | |
| CN108260200A (en) | The method and system that a kind of more synchronisation sources synchronize | |
| CN106464412A (en) | Optical packet sending method and device, processing method and optical switching device | |
| KR102102966B1 (en) | 5G TDD Syncronization Signal Detecting Method For Common Carrier Repeater | |
| CN103581926B (en) | A kind of method and apparatus realizing multiple networking model compatibility | |
| CN105101418B (en) | A kind of method, system and equipment determined with reference to subframe | |
| CN102440031A (en) | Clock synchronization method and device | |
| CN101365180A (en) | Information sending method and apparatus | |
| JPH10304437A (en) | Radio block synchronization monitor system and radio base station system adopting the monitor system | |
| JPH0365692B2 (en) | ||
| CN103036610A (en) | Communication achieving method and system with redundant chain type energy storage system | |
| CN101702839A (en) | Device and method for implementing inverting function of main link and standby link of Ir interface | |
| CN100566208C (en) | The correlation detection synchronization module of time division synchronous code division multiple access covering system | |
| CN104981010B (en) | Time synchronizing signal, the providing method of frequency synchronization signal and device | |
| CN100568772C (en) | Use the synchronous time division synchronous code division multiple access covering system of correlation detection |
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 | ||
| AD01 | Patent right deemed abandoned | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20210709 |