CN105764132A - Time service method, device and system - Google Patents
Time service method, device and system Download PDFInfo
- Publication number
- CN105764132A CN105764132A CN201410784508.5A CN201410784508A CN105764132A CN 105764132 A CN105764132 A CN 105764132A CN 201410784508 A CN201410784508 A CN 201410784508A CN 105764132 A CN105764132 A CN 105764132A
- Authority
- CN
- China
- Prior art keywords
- signal
- time service
- temporal information
- low
- frame
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C9/00—Electrically-actuated devices for setting the time-indicating means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Electric Clocks (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a time service method, device and system, and the method comprises the steps: receiving a clock signal sent by a standard clock source; analyzing the clock signal, and obtaining time information; and transmitting time information through a low-frequency wireless signal. The method enables the standard clock source to be analyzed, such as a clock signal sent by a GPS positioning satellite, obtains the time information, and then transmits the time information through employing a low-frequency wireless signal, and achieves the time service for a small-size base station. Meanwhile, because of the characteristics of shielding and attenuation of the low-frequency wireless signal which can penetrate an indoor wall, the method can achieve the large-area time service of the small-size base station comprising an indoor base station.
Description
Technical field
The present invention relates to clock field of synchronization, particularly a kind of time service method, Apparatus and system.
Background technology
Wireless base station is miniaturization day by day, and a lot of miniaturization wireless base stations do not possess the clock synchronous condition that acquisition satellite is reference source.So that this type of base station is obtained in that reference clock, prior art provides too network clock simultaneous techniques, air interface synchronization technology etc. and solves this problem, but network environment is required higher by this kind of technology, such as air interface synchronization technology, when network environment is severe, it is susceptible to interlocking between wireless base station, causes the problems such as clocking error increase.
Therefore, how providing a kind of can be the Service of Timing of the miniaturization base station time service such as wireless base station, is those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
The invention provides a kind of time service method, Apparatus and system, it is achieved that for the time service of wireless base station.
The invention provides a kind of time service method, in one embodiment, comprising: receive the clock signal that standard clock source sends；Resolve clock signal and obtain temporal information；By low-frequency wireless signals transmission time information.
Further, the parsing clock signal in above-described embodiment obtains the step of temporal information and includes: after clock signal carrying out signal capture, tracking, demodulation, synchronization and calculating, obtain temporal information.
Further, above-described embodiment, before transmission time information, also includes: according to time service range computation transmitting power, with transmitting power transmission time information.
Further, the temporal information in above-described embodiment includes 1PPS signal and TOD signal, is included by the step of low-frequency wireless signals transmission time information: with message mode, 1PPS signal and TOD signal are formed packet, sends packet by low-frequency wireless signals.
Further, the step by low-frequency wireless signals transmission packet in above-described embodiment includes: using 1PPS signal as basic frame, carries out frame head alignment and samples, sending basic frame according to the frequency of 1PPS signal；It is Frame by TOD signal assemble, in the middle of the transmission cycle of basic frame, sends Frame.
The invention provides a kind of time service device, in one embodiment, comprising: receiver module, for receiving the clock signal that standard clock source sends；Parsing module, is used for resolving clock signal and obtains temporal information；Sending module, for by low-frequency wireless signals transmission time information.
Further, the parsing module in above-described embodiment is specifically for, after clock signal carrying out signal capture, tracking, demodulation, synchronization and calculating, obtaining temporal information.
Further, above-described embodiment also includes computing module, and for launching merit according to time service range computation, sending module is specifically for transmitting power transmission time information.
Further, the temporal information in above-described embodiment includes 1PPS signal and TOD signal, and sending module, specifically for 1PPS signal and TOD signal are formed packet with message mode, sends packet by low-frequency wireless signals.
Further, the sending module in above-described embodiment specifically for using 1PPS signal as basic frame, carry out frame head alignment and sample, sending basic frame according to the frequency of 1PPS signal；It is Frame by TOD signal assemble, in the middle of the transmission cycle of basic frame, sends Frame.
The invention provides a kind of communication system, it includes time service device provided by the invention.
Beneficial effects of the present invention:
Scheme provided by the invention, after standard clock source, the clock signal that sends such as GPS position location satellite etc. carried out parsing obtaining temporal information, low-frequency wireless signals is utilized temporal information to be sent, achieve the time service to miniaturization base station, simultaneously because low-frequency wireless signals can penetrate the shielding of indoor wall and the feature of decay, it is possible to achieve the miniaturization base station including indoor base station is carried out large-scale time service.
Accompanying drawing explanation
The flow chart of the time service method that Fig. 1 provides for first embodiment of the invention；
The schematic diagram of the time service device that Fig. 2 provides for second embodiment of the invention；
The flow chart of the time service method that Fig. 3 provides for third embodiment of the invention.
Detailed description of the invention
Now in conjunction with the mode of accompanying drawing the present invention made by detailed description of the invention and further annotate explanation.
First embodiment:
The flow chart of the time service method that Fig. 1 provides for first embodiment of the invention, as shown in Figure 1, in the present embodiment, time service method provided by the invention comprises the following steps:
S101: receive the clock signal that standard clock source sends；
Standard clock source can be conventional GPS time dissemination system, it can also be the time dissemination system such as the Big Dipper, Galileo, the form of the clock signal of different time dissemination systems is likely to difference, but as long as utilizing corresponding reception antenna (such as gps antenna etc.) just can complete the reception of clock signal；
S102: resolve clock signal and obtain temporal information；
Temporal information is primarily referred to as the information such as current time, frame number；
S103: by low-frequency wireless signals transmission time information.
In certain embodiments, the parsing clock signal in embodiment illustrated in fig. 1 obtains the step of temporal information and includes: after clock signal carrying out signal capture, tracking, demodulation, synchronization and calculating, obtain temporal information.
In certain embodiments, embodiment illustrated in fig. 1, before transmission time information, also includes: according to time service range computation transmitting power, with transmitting power transmission time information.
In certain embodiments, temporal information in embodiment illustrated in fig. 1 includes 1PPS signal and TOD signal, included by the step of low-frequency wireless signals transmission time information: 1PPS signal and TOD signal are formed packet with message mode, sends packet by low-frequency wireless signals.
In certain embodiments, the step by low-frequency wireless signals transmission packet in embodiment illustrated in fig. 1 includes: using 1PPS signal as basic frame, carries out frame head alignment and samples, sending basic frame according to the frequency of 1PPS signal；It is Frame by TOD signal assemble, in the middle of the transmission cycle of basic frame, sends Frame.
Second embodiment:
The schematic diagram of the time service device that Fig. 2 provides for second embodiment of the invention, as shown in Figure 2, in the present embodiment, time service device 2 provided by the invention includes: receiver module 21, parsing module 22 and sending module 23, wherein,
Receiver module 21, it is possible to be conventional gps antenna etc., for receiving the clock signal that standard clock source sends；
Parsing module 22, is used for resolving clock signal and obtains temporal information；
Sending module 23, for by low-frequency wireless signals transmission time information.
In certain embodiments, the parsing module 22 in embodiment illustrated in fig. 2 is specifically for, after clock signal carrying out signal capture, tracking, demodulation, synchronization and calculating, obtaining temporal information；Conventional uBloxGPS receiver etc. can be adopted.
In certain embodiments, as in figure 2 it is shown, time service device provided by the invention 2 also includes computing module 24, for launching merit according to time service range computation, sending module 23 is specifically for transmitting power transmission time information.
In certain embodiments, temporal information in above-described embodiment includes 1PPS signal and TOD signal, now, the sending module 23 in embodiment illustrated in fig. 2, specifically for 1PPS signal and TOD signal are formed packet with message mode, sends packet by low-frequency wireless signals.
In certain embodiments, the sending module 23 in above-described embodiment specifically for using 1PPS signal as basic frame, carry out frame head alignment and sample, sending basic frame according to the frequency of 1PPS signal；It is Frame by TOD signal assemble, in the middle of the transmission cycle of basic frame, sends Frame.
The invention provides a kind of communication system, it includes time service device provided by the invention.
3rd embodiment:
Now by concrete application example the present invention done and further annotate explanation, in the present embodiment, illustrate for GPS system for standard clock source.
From the figure 3, it may be seen that in the present embodiment, time service method provided by the invention comprises the following steps:
S301: select standard clock source；
The GPS time service that the present embodiment commonly uses for industry, the functional similarity such as the Big Dipper/Glonass/ Galileo, repeat no more；According to demand, it is possible to select different satellite receptions, even multiple satellite reception, with the development of satisfied following wireless base station satellite time transfer；
S302: receive original clock signal by gps antenna；
Original clock signal refers to the signal that gps antenna directly receives, would be likely to occur interference etc., in actual use, following leading indicator is met: frequency: 1575.42 ± 5MHz, gain: 38 ± 2dB, diectric antenna gain: 4dBi, noise coefficient :≤2.7dB, output VSWR: 2.5max；
S303: original clock signal is filtered and obtains clock signal after noise reduction process, is sent to GPS by GPS radio frequency feeder line；
Gps antenna receives gps signal and carries out processing filtering and noise reduction, adopts existing processing mode, and the application repeats no more；The carrier signal that gps antenna receives 1575.42 megahertzs (L1 wave band) and 1227.6 megahertzs (L2 wave bands) are sent to GPS by radio frequency feed line；
GPS radio frequency feeder line refers to the coaxial radio frequency cable of the transmission for the radiofrequency signal to gps antenna to GPS, and length is longer；When using 1/4 ", 1/2 " main feeder, it is not necessary to the wire jumper transition of main feeder two ends connects；But " during main feeder, it is necessary at the two ends of main feeder, with 1/2 ", cable is as, after wire jumper transition, connecting the spark gap of gps antenna and equipment side respectively when use 7/8, between spark gap and GPS, with half soft thin wire jumper connection；
S304:GPS receiver extracts 1PPS signal and TOD signal；
GPS can adopt uBloxGPS receiver, it adopts ANTARISSuperSense weak signal tracking technique, tracking sensitivity exceedes-158dBm and has enhancement mode acquisition sensitivity, can provide high position precision and dynamic navigation performance when low signal level；
S305: 1PPS signal and TOD signal are formed packet Packet with message mode；
Exist in practical application, using 1PPS as a basic frame, carry out the alignment of frame head with 1PPS signal, 1PPS is sampled, and carry out the transmission of basic frame according to the frequency of PP1S；TOD signal assemble being become Frame, carries out the transmission of message in the middle of the basic frame period, it is possible to complete the digital processing of this part with ARMA9 processor, be substantially carried out calculating control, the framing completing message conciliates frame, message response and abnormality processing；
S306: calculate transmit power, packet Packet is sent by low-frequency wireless signals by digital intermediate frequency part；
Packet is placed on the digital intermediate frequency part of wireless signal, it is modulated, and at numeric field, upward signal is controlled, and can independently upstream noises at different levels be controlled and distortion pretreatment；Intermediate-freuqncy signal is amplified and filters by emitting portion, and transmitting power is controlled, and the power of this device power amplifier is relevant with coverage, and bandwidth requirement is not high；
Low frequency involved by the application refers to the low-frequency range in radio-frequency spectrum, and in follow-up frequency spectrum planning, such as 700Mhz and frequency below probably for radio communication, low frequency spectrum occupies covering advantage
In summary, by the enforcement of the present invention, at least there is following beneficial effect:
After standard clock source, the clock signal that sends such as GPS position location satellite etc. carried out parsing obtaining temporal information, low-frequency wireless signals is utilized temporal information to be sent, achieve the time service to miniaturization base station, simultaneously because low-frequency wireless signals can penetrate the shielding of indoor wall and the feature of decay, it is possible to achieve the miniaturization base station including indoor base station is carried out large-scale time service.
Below it is only the specific embodiment of the present invention; not the present invention is done any pro forma restriction; every any simple modification, equivalent variations, combination or modification embodiment of above done according to the technical spirit of the present invention, all still falls within the protection domain of technical solution of the present invention.
Claims (11)
1. a time service method, it is characterised in that including:
Receive the clock signal that standard clock source sends；
Resolve described clock signal and obtain temporal information；
Described temporal information is sent by low-frequency wireless signals.
2. time service method as claimed in claim 1, it is characterised in that the described clock signal of described parsing obtains the step of temporal information and includes: after described clock signal being carried out signal capture, tracking, demodulation, synchronization and calculating, obtain described temporal information.
3. time service method as claimed in claim 1, it is characterised in that before sending described temporal information, also include: according to time service range computation transmitting power, send described temporal information with described transmitting power.
4. the time service method as described in any one of claims 1 to 3, it is characterized in that, described temporal information includes 1PPS signal and TOD signal, described send the step of described temporal information by low-frequency wireless signals and include: described 1PPS signal and TOD signal are formed packet with message mode, sends described packet by low-frequency wireless signals.
5. time service method as claimed in claim 4, it is characterized in that, described send the step of described packet by low-frequency wireless signals and include: using described 1PPS signal as basic frame, carry out frame head alignment and sample, sending described basic frame according to the frequency of described 1PPS signal；It is Frame by described TOD signal assemble, in the middle of the transmission cycle of described basic frame, sends described Frame.
6. a time service device, it is characterised in that including:
Receiver module, for receiving the clock signal that standard clock source sends；
Parsing module, is used for resolving described clock signal and obtains temporal information；
Sending module, for sending described temporal information by low-frequency wireless signals.
7. time service device as claimed in claim 6, it is characterised in that described parsing module is specifically for, after described clock signal carrying out signal capture, tracking, demodulation, synchronization and calculating, obtaining described temporal information.
8. time service device as claimed in claim 6, it is characterised in that also include computing module, for launching merit according to time service range computation, described sending module is specifically for sending described temporal information with described transmitting power.
9. the time service device as described in any one of claim 6 to 8, it is characterized in that, described temporal information includes 1PPS signal and TOD signal, and described sending module, specifically for described 1PPS signal and TOD signal are formed packet with message mode, sends described packet by low-frequency wireless signals.
10. time service device as claimed in claim 9, it is characterised in that described sending module specifically for using described 1PPS signal as basic frame, carry out frame head alignment and sample, sending described basic frame according to the frequency of described 1PPS signal；It is Frame by described TOD signal assemble, in the middle of the transmission cycle of described basic frame, sends described Frame.
11. a communication system, it is characterised in that include the time service device as described in any one of claim 6 to 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410784508.5A CN105764132A (en) | 2014-12-16 | 2014-12-16 | Time service method, device and system |
| PCT/CN2015/085080 WO2016095526A1 (en) | 2014-12-16 | 2015-07-24 | Time service method, apparatus and system, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410784508.5A CN105764132A (en) | 2014-12-16 | 2014-12-16 | Time service method, device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105764132A true CN105764132A (en) | 2016-07-13 |
Family
ID=56125824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410784508.5A Withdrawn CN105764132A (en) | 2014-12-16 | 2014-12-16 | Time service method, device and system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105764132A (en) |
| WO (1) | WO2016095526A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425935A (en) * | 2017-05-23 | 2017-12-01 | 深圳国人通信股份有限公司 | A kind of method for realizing LTE private network base station time synchronisms |
| CN114520702A (en) * | 2020-11-18 | 2022-05-20 | 中国移动通信有限公司研究院 | Time synchronization method and related equipment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114859691B (en) * | 2022-03-25 | 2023-12-12 | 北京轩宇信息技术有限公司 | Wireless unidirectional time service system and method with safety isolation |
| CN114706100B (en) * | 2022-06-07 | 2022-09-30 | 长沙金维信息技术有限公司 | Differential data broadcasting method based on Beidou RDSS |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490688A (en) * | 2002-10-17 | 2004-04-21 | 深圳市中兴通讯股份有限公司上海第二 | Timing system and method thereof |
| CN1973559A (en) * | 2004-07-13 | 2007-05-30 | Ut斯达康通讯有限公司 | Method for transmitting packet of wireless signal in radio base station system |
| US20070202801A1 (en) * | 2006-02-27 | 2007-08-30 | Frantz Frederick E | System and Method for Synchronization of a Plurality of Devices in a Wireless Sensor Arrangement |
| CN101458318A (en) * | 2009-01-04 | 2009-06-17 | 江苏北斗科技有限公司 | Novel GPS redundant time service method |
| CN101741401A (en) * | 2009-12-11 | 2010-06-16 | 和芯星通科技(北京)有限公司 | Time service system of radio receiver and time service method |
| CN102981403A (en) * | 2012-09-26 | 2013-03-20 | 广东大普通信技术有限公司 | Clock leap second processing method and system thereof |
| CN103529690A (en) * | 2013-11-01 | 2014-01-22 | 西安邮电大学 | Wall clock for receiving Beidou satellite time and wall clock time calibrating method |
| CN104244401A (en) * | 2014-10-16 | 2014-12-24 | 成都微址科技有限公司 | Satellite timing service-based wireless communication method and satellite timing service-based wireless communication device |
| CN204377153U (en) * | 2014-09-28 | 2015-06-03 | 中兴通讯股份有限公司 | A kind of time service device and system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063052A (en) * | 2010-12-29 | 2011-05-18 | 上海华勤通讯技术有限公司 | Electric wave time correction electronic equipment and electric wave time correction method |
-
2014
- 2014-12-16 CN CN201410784508.5A patent/CN105764132A/en not_active Withdrawn
-
2015
- 2015-07-24 WO PCT/CN2015/085080 patent/WO2016095526A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490688A (en) * | 2002-10-17 | 2004-04-21 | 深圳市中兴通讯股份有限公司上海第二 | Timing system and method thereof |
| CN1973559A (en) * | 2004-07-13 | 2007-05-30 | Ut斯达康通讯有限公司 | Method for transmitting packet of wireless signal in radio base station system |
| US20070202801A1 (en) * | 2006-02-27 | 2007-08-30 | Frantz Frederick E | System and Method for Synchronization of a Plurality of Devices in a Wireless Sensor Arrangement |
| CN101458318A (en) * | 2009-01-04 | 2009-06-17 | 江苏北斗科技有限公司 | Novel GPS redundant time service method |
| CN101741401A (en) * | 2009-12-11 | 2010-06-16 | 和芯星通科技(北京)有限公司 | Time service system of radio receiver and time service method |
| CN102981403A (en) * | 2012-09-26 | 2013-03-20 | 广东大普通信技术有限公司 | Clock leap second processing method and system thereof |
| CN103529690A (en) * | 2013-11-01 | 2014-01-22 | 西安邮电大学 | Wall clock for receiving Beidou satellite time and wall clock time calibrating method |
| CN204377153U (en) * | 2014-09-28 | 2015-06-03 | 中兴通讯股份有限公司 | A kind of time service device and system |
| CN104244401A (en) * | 2014-10-16 | 2014-12-24 | 成都微址科技有限公司 | Satellite timing service-based wireless communication method and satellite timing service-based wireless communication device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425935A (en) * | 2017-05-23 | 2017-12-01 | 深圳国人通信股份有限公司 | A kind of method for realizing LTE private network base station time synchronisms |
| CN114520702A (en) * | 2020-11-18 | 2022-05-20 | 中国移动通信有限公司研究院 | Time synchronization method and related equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016095526A1 (en) | 2016-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2010204891B2 (en) | Systems and methods for mobile phone location with digital distributed antenna systems | |
| US10285156B2 (en) | Dynamic measurement gap configuration for inter-frequency positioning measurements | |
| CN102083090B (en) | Method and device for positioning interference source | |
| US20150378004A1 (en) | Symbiotic radar and communication system | |
| CN105764132A (en) | Time service method, device and system | |
| CN108512617B (en) | Automatic early warning method and device for potential interference of aviation frequency band | |
| JP2013501439A (en) | Radio base station and method for receiving radio base station signal | |
| WO2021056547A1 (en) | Methods for communication, terminal device, network device, and computer readable media | |
| US20240155451A1 (en) | Method and apparatus for determining satellite frequency band, and method and apparatus for adjusting frequency band | |
| CN111791921B (en) | Method and device for acquiring position information of train | |
| CN102932075B (en) | Frequency modulation (FM) broadcasting signal receiving and monitoring system | |
| US10652847B2 (en) | Simulcast controller, relay station, and communication method operated on simulcasting | |
| WO2016045314A1 (en) | Signal transmission method and system | |
| CN102832965B (en) | Pseudorange acquisition and positioning method, device and system based on broadcast positioning signal | |
| Duffett-Smith et al. | Precise UE positioning in UMTS using cumulative virtual blanking | |
| CN202918303U (en) | Frequency modulation broadcasting signal receiving and measuring system | |
| KR101826361B1 (en) | White space use system with connecting cognitive signal | |
| RU2627686C1 (en) | Complex of navy means of digital communication | |
| CN108123735A (en) | A kind of mobile terminal device for being used to resist high frequency cable waste | |
| Eichstaedt et al. | Evaluating an HDL-based multi-channel ADS-B receiver on a highly integrated SDR platform for space application | |
| US8849208B2 (en) | Apparatus, method and radio system | |
| CN206851044U (en) | A kind of practical multi signal TDOA alignment systems | |
| CN203734670U (en) | L-frequency band satellite data multimedia system | |
| CN110071784B (en) | Aircraft positioning method in ADS-B aviation monitoring system | |
| CN219644116U (en) | Integrated base station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160713 |
|
| WW01 | Invention patent application withdrawn after publication |