CN101854645A - Method, base station and terminal for monitoring synchronization state of base stations - Google Patents
Method, base station and terminal for monitoring synchronization state of base stations Download PDFInfo
- Publication number
- CN101854645A CN101854645A CN200910106369A CN200910106369A CN101854645A CN 101854645 A CN101854645 A CN 101854645A CN 200910106369 A CN200910106369 A CN 200910106369A CN 200910106369 A CN200910106369 A CN 200910106369A CN 101854645 A CN101854645 A CN 101854645A
- Authority
- CN
- China
- Prior art keywords
- base station
- terminal
- reference base
- target
- time difference
- 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
Images
Abstract
The invention relates to a method for monitoring the synchronization state of base stations. The method comprises the following steps: a reference base station receives the time difference of a target base station and a reference base station sent by at least one terminal; the time difference of the target base station and the reference base station is the difference of the time that the frame header sent by the target base station arrives at the terminal and the time that the frame header sent by the reference base station arrives at the terminal; and if the time difference is more than a preset threshold, the reference base station reports alarm information to a central network management system. The embodiment of the invention also discloses a base station and terminal used for monitoring the synchronization state of base stations. By using the method, base station and terminal provided by the embodiment of the invention, the synchronization state of base stations in the network can be automatically monitored and the interference caused by the time nonsynchronous for sending frames by base stations can be timely detected.
Description
Technical field
The invention belongs to communication technical field, relate in particular to a kind of method, base station and terminal of monitoring base station synchronous regime.
Background technology
Flourish along with mobile communication technology, wireless communication system present the trend of mobile, broadband and IPization, and the competition in mobile communication market also is growing more intense.For tackling from WiMAX, the challenge of tradition such as Wi-Fi and emerging WiMAX access technology improves the competitiveness of 3G in broadband wireless access market, and 3GPP carries out UTRA Long Term Evolution (Long Term Evolution, LTE) Study on Technology is to realize 3G technology seamlessly transitting to B3G and 4G.
The LTE system defined simultaneously Frequency Division Duplexing (FDD) (Frequency Division Duplexing, FDD) and time division duplex (Time Division Duplexing, TDD) dual mode, FDD receive and send on two symmetrical frequency channels that separate.And TDD separates reception and transmitting channel with the time.The carrying of the different time-gap of same frequency carrier as channel used in its reception and transmission.The TDD system compares the FDD system a lot of self advantages, as can the flexible configuration frequency, uses the not wield scattered frequency range of FDD system; Can improve the descending time slot ratio, with good support non-symmetrical service or the like by adjusting the uplink and downlink timeslot transfer point.But the TDD system compares the FDD system also exists a lot of deficiencies, with frequently, can't disturb isolation as TDD system transceiver channel, is easy to exist interference etc. in the system and between system.
Some is because the asynchronism(-nization) of each adjacent base station transmit frame goes on foot caused for the interference that occurs in the TDD system, but the neither one effective method comes the time synchronized state between monitoring base station in the prior art, therefore after disturbing between serious station appears in the TDD system, need through drive test etc. in a large number arduous location work could determine asynchronous causing between the base station.
Summary of the invention
The embodiment of the invention provides a kind of scheme of monitoring base station synchronous regime, and by this programme, the synchronous regime between the base station in the monitoring network is in time found to go on foot caused interference because of the asynchronism(-nization) of base station transmit frame automatically.
The method of the monitoring base station synchronous regime that the embodiment of the invention provides may further comprise the steps:
Reference base station receives the target BS of at least one terminal transmission and the time difference of reference base station; The time difference of described target BS and reference base station is the difference that frame head that described target BS the sends time that arrives described terminal and the frame head of described reference base station transmission arrive the time of described terminal;
If the described time difference, then described reference base station report and alarm information was to the central site network management system greater than default thresholding.
The base station that the embodiment of the invention provides comprises:
Receiving element is used to receive the target BS of at least one terminal transmission and the time difference of reference base station; The time difference of described target BS and reference base station is the difference of time with the time of the frame head incoming terminal of described reference base station transmission of the frame head incoming terminal that sends of target BS;
Whether comparing unit is used for time difference that more above-mentioned receiving element receives greater than default thresholding;
Alarm Unit is used for comparative result when comparing unit and is the described time difference during greater than default thresholding, and report and alarm information is to the central site network management system.
The terminal that the embodiment of the invention provides comprises:
First acquisition module is used to obtain time of the frame head incoming terminal that reference base station sends;
Second acquisition module is used to obtain time of the frame head incoming terminal that target BS sends;
Difference block is used to obtain the difference of time with the time of the frame head incoming terminal of described target BS transmission of the frame head incoming terminal that described reference base station sends;
Sending module is used for sending the time difference that described difference block obtains to reference base station
By method, base station and terminal that the invention described above embodiment provides, the synchronous regime between the base station in the monitoring network can in time be found to go on foot caused interference because of the asynchronism(-nization) of base station transmit frame thus automatically, makes the network optimization and management more convenient.
Description of drawings
Fig. 1 is the method flow schematic diagram of the embodiment of the invention one;
Fig. 2 is the system configuration schematic diagram of the embodiment of the invention two;
Fig. 3 is the method flow schematic diagram of the embodiment of the invention two;
Fig. 4 is the structural representation of base station embodiment of the present invention;
Fig. 5 is the structural representation of terminal embodiment of the present invention.
Embodiment
The embodiment of the invention provides a kind of method of monitoring base station synchronous regime, by this method synchronous regime between the monitoring base station automatically, can in time find thus to go on foot caused interference because of the asynchronism(-nization) of base station transmit frame.
Referring to shown in Figure 1, be the method for the embodiment of the invention one monitoring base station synchronous regime, this comprises the steps:
Step 101: reference base station receives the target BS of at least one terminal transmission and the time difference of reference base station; If this time difference, then execution in step 102 greater than default thresholding;
The time difference of above-mentioned target BS and reference base station is the difference of time with the time of the frame head incoming terminal of described reference base station transmission of the frame head incoming terminal that sends of the target BS that records of terminal;
Step 102: reference base station report and alarm information is to the central site network management system.
Can comprise the time difference that reference base station is received in the step 101 in the above-mentioned warning information, after the center network management system is received this warning information, can adjust the time of target BS transmit frame according to the time difference wherein.
By the method for the invention described above, timely synchronous state between monitoring base station, and by report and alarm information, can in time find to go on foot caused interference by the asynchronism(-nization) of base station transmit frame.
Below by example more specifically, the method for the embodiment of the invention is described, referring to system configuration schematic diagram shown in Figure 2.The hypothetical reference base station is BS1, and target BS BS2 and BS3 are the base station adjacent with BS1, and terminal MS 1 is in the BS1 coverage.The flow process of the embodiment of the invention two is referring to shown in Figure 3, and it comprises the steps:
Step 301:MS1 receives scan command (SCN_CMD) message that BS1 sends, and SCN_CMD message comprises the target BS information of needs scanning.
The target BS information that comprises among the above-mentioned SCN_CMD can also can be the information (as the information of BS2 and BS3) of a plurality of base stations for the information of a base station (as, the information of BS2).
Step 302:MS1 obtains frame head that this target BS sends according to the target BS information among the SCN_CMD and arrives the time of MS1 and frame head that BS1 the sends time difference to the time of MS1.
If target BS is a plurality of, then MS1 obtains the time difference of the frame head of time that frame head that each target BS sends arrives MS1 and BS1 transmission to the time of MS1 respectively.
Step 303:MS1 reports (SCN_RPT) message that the above-mentioned time difference is sent to BS1 by scanning.
If target BS is a plurality of, can comprise the time difference of each target BS and BS1 in the above-mentioned SCN_RPT message.
Whether step 304:BS1 judges this time difference greater than predefined thresholding Tmax after receiving the time difference of MS1 transmission, if greater than Tmax, then report and alarm information is to the central site network management system; If less than Tmax, then without report and alarm information.
If target BS is a plurality of, each target BS that the MS1 that then above-mentioned BS1 receives reports and after the time difference of BS1 can be judged one by one, for the time difference greater than Tmax, then report and alarm information is to the central site network management system.
Because there is accidental factor in the time difference that terminal is once obtained between target BS and the reference base station, therefore alternatively, can repeat repeatedly for above-mentioned steps 301～303, in step 304, can average to the time difference that MS1 sends for many times in the base station, whether judge this mean value then greater than predefined thresholding Tmax, if greater than Tmax, then report and alarm information is to the central site network management system; If less than Tmax, then without report and alarm information.
Alternatively, because there are accidental factor in target BS that terminal is obtained and the time difference between the reference base station, so the base station can average to the time difference that a plurality of terminals are obtained, thereby obtains information more accurately.With two terminals is example, in embodiments of the invention three, supposes also to have MS2 except above-mentioned MS1.
Because MS2 is identical with the method that MS1 obtains the time difference between target BS and the reference base station, therefore do not repeat them here.
Embodiments of the invention three and embodiment two differences are the processing of base station side.Suppose that frame head that target BS BS2 that MS1 obtains sends arrives the time of MS1, and the frame head that sends of BS1 to time difference of the time of MS1 be RD1; The frame head that BS2 that MS2 obtains sends arrives the time of MS2, and the frame head that sends of BS1 to time difference of the time of MS2 be RD2.
BS1 averages to RD1 and RD2 after receiving the RD2 that RD1 that MS1 sends and MS2 send; Whether BS1 judges the mean value of RD1 and RD2 greater than predefined thresholding Tmax, if greater than Tmax, then report and alarm information is to the central site network management system; If less than Tmax, then without report and alarm information.
The method of describing by the invention described above embodiment, the synchronous regime between the monitoring base station automatically, and give central management system by report and alarm information, can make webmaster personnel discovery in time go on foot caused interference because of the asynchronism(-nization) of base station transmit frame.
Except the method that the invention described above embodiment provides, the embodiment of the invention also provides a kind of base station, and referring to shown in Figure 4, this base station comprises:
Receiving element 411 is used to receive the target BS of at least one terminal transmission and the time difference of reference base station; The time difference of this target BS and reference base station is the time of the frame head incoming terminal that sends of target BS and the time difference of the time of the frame head incoming terminal of described reference base station transmission;
Whether comparing unit 412 is used for time difference that more above-mentioned receiving element 411 receives greater than default thresholding;
Alternatively, if the number of above-mentioned terminal is more than or equal to two, then this base station further comprises:
Averaging unit 414 is used to obtain the mean value of the time difference of target BS that all terminals send and reference base station;
Described Alarm Unit 413, be further used for if the mean value of described averaging unit 414 time difference of obtaining greater than default thresholding, then report and alarm information is to the central site network management system.
Alternatively, the base station of describing in the foregoing description can also comprise:
Transmitting element is used for sending scan command message to described terminal, comprises the target BS information of needs scanning in the described scan command message.
The base station that provides by the invention described above embodiment, the synchronous regime between the monitoring base station automatically.And central management system is given by report and alarm information in this base station, can make the webmaster personnel in time find to go on foot caused interference because of the asynchronism(-nization) of base station transmit frame.
The embodiment of the invention also provides a kind of terminal, and referring to shown in Figure 5, this terminal comprises:
Sending module 514 is used for sending the time difference that described difference block obtains to reference base station.
Alternatively, this terminal can also comprise:
By the terminal that the invention described above embodiment provides, can in time report the time difference of target BS and reference base station, make reference base station obtain the information of nonsynchronous target BS.
The all or part of step that one of ordinary skill in the art will appreciate that realization said method embodiment, base station or terminal execution can instruct relevant hardware to finish by program.
Technical scheme by the invention described above provides can make the synchronous regime between the automatic monitoring base station, can in time find thus to go on foot caused interference because of the asynchronism(-nization) of base station transmit frame.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the method for a monitoring base station synchronous regime is characterized in that, described method comprises:
Reference base station receives the target BS of at least one terminal transmission and the time difference of reference base station; The time difference of described target BS and reference base station is the difference that frame head that described target BS the sends time that arrives described terminal and the frame head of described reference base station transmission arrive the time of described terminal;
If the described time difference, then described reference base station report and alarm information was to the central site network management system greater than default thresholding.
2. the method for claim 1, it is characterized in that, if the number of described terminal is more than or equal to two, then described reference base station receives the target BS of at least one terminal transmission and the time difference of reference base station further comprises afterwards: described reference base station is averaged to the target BS of all terminals transmissions and the time difference of reference base station;
If described described time difference, then described reference base station report and alarm information to the central site network management system was greater than default thresholding: if the mean value of described time difference is greater than the thresholding of presetting, then report and alarm information is to the central site network management system.
3. method as claimed in claim 1 or 2 is characterized in that, described reference base station receives the target BS of at least one terminal transmission and the time difference of reference base station further comprises before:
Described reference base station sends scan command message to described terminal, comprises the target BS information of needs scanning in the described scan command message.
4. a base station is characterized in that, described base station comprises:
Receiving element is used to receive the target BS of at least one terminal transmission and the time difference of reference base station; The time difference of described target BS and reference base station is the difference of time with the time of the frame head incoming terminal of described reference base station transmission of the frame head incoming terminal that sends of target BS;
Whether comparing unit is used for time difference that more above-mentioned receiving element receives greater than default thresholding;
Alarm Unit, be used for comparative result when comparing unit and be the described time difference during greater than default thresholding report and alarm information to the central site network management system.
5. base station as claimed in claim 4 is characterized in that, if the number of described terminal is more than or equal to two, then described base station further comprises:
Averaging unit is used to obtain the mean value of the time difference of target BS that all terminals send and reference base station;
Described Alarm Unit, be further used for when the mean value of the time difference that described averaging unit is obtained during greater than default thresholding report and alarm information to the central site network management system.
6. as claim 4 or 5 described base stations, it is characterized in that described base station further comprises:
Transmitting element is used for sending scan command message to described terminal, comprises the target BS information of needs scanning in the described scan command message.
7. a terminal is characterized in that, described terminal comprises:
First acquisition module is used to obtain time of the frame head incoming terminal that reference base station sends;
Second acquisition module is used to obtain time of the frame head incoming terminal that target BS sends;
Difference block is used to obtain the difference of time with the time of the frame head incoming terminal of described target BS transmission of the frame head incoming terminal that described reference base station sends;
Sending module is used for sending the time difference that described difference block obtains to reference base station.
8. terminal according to claim 7 is characterized in that, described terminal comprises:
Receiver module is used to receive next scan command message to reference base station, comprises the target BS information of needs scanning in this scan command message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910106369A CN101854645A (en) | 2009-03-30 | 2009-03-30 | Method, base station and terminal for monitoring synchronization state of base stations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910106369A CN101854645A (en) | 2009-03-30 | 2009-03-30 | Method, base station and terminal for monitoring synchronization state of base stations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101854645A true CN101854645A (en) | 2010-10-06 |
Family
ID=42805851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910106369A Pending CN101854645A (en) | 2009-03-30 | 2009-03-30 | Method, base station and terminal for monitoring synchronization state of base stations |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101854645A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102612134A (en) * | 2012-04-06 | 2012-07-25 | 工业和信息化部电信传输研究所 | User equipment assisted synchronization mode of base stations |
| CN102612135A (en) * | 2012-04-06 | 2012-07-25 | 工业和信息化部电信传输研究所 | System for realizing indoor base station synchronization |
| CN105009656A (en) * | 2014-01-29 | 2015-10-28 | 华为技术有限公司 | Method and device for clock synchronization |
| CN105493542A (en) * | 2015-06-24 | 2016-04-13 | 瑞典爱立信有限公司 | Method and device for coordinating resources |
| CN107528684A (en) * | 2016-06-20 | 2017-12-29 | 现代自动车株式会社 | The first communication node and its operating method in In-vehicle networking based on Ethernet |
| CN109792703A (en) * | 2016-09-30 | 2019-05-21 | 瑞典爱立信有限公司 | It is adapted between simultaneously operating and asynchronous operation based on parameter set |
| CN114173277A (en) * | 2021-10-29 | 2022-03-11 | 四川中电昆辰科技有限公司 | Positioning base station synchronization and displacement monitoring system and monitoring method |
-
2009
- 2009-03-30 CN CN200910106369A patent/CN101854645A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102612134A (en) * | 2012-04-06 | 2012-07-25 | 工业和信息化部电信传输研究所 | User equipment assisted synchronization mode of base stations |
| CN102612135A (en) * | 2012-04-06 | 2012-07-25 | 工业和信息化部电信传输研究所 | System for realizing indoor base station synchronization |
| CN102612134B (en) * | 2012-04-06 | 2015-05-13 | 工业和信息化部电信传输研究所 | User equipment assisted synchronization mode of base stations |
| CN102612135B (en) * | 2012-04-06 | 2016-04-06 | 工业和信息化部电信传输研究所 | A kind of system realizing indoor base station synchronization |
| CN105009656A (en) * | 2014-01-29 | 2015-10-28 | 华为技术有限公司 | Method and device for clock synchronization |
| WO2016206011A1 (en) * | 2015-06-24 | 2016-12-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for coordinating resources |
| CN105493542A (en) * | 2015-06-24 | 2016-04-13 | 瑞典爱立信有限公司 | Method and device for coordinating resources |
| CN105493542B (en) * | 2015-06-24 | 2019-11-26 | 瑞典爱立信有限公司 | Method and apparatus for coordinating resource |
| US10813067B2 (en) | 2015-06-24 | 2020-10-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for coordinating resources |
| CN107528684A (en) * | 2016-06-20 | 2017-12-29 | 现代自动车株式会社 | The first communication node and its operating method in In-vehicle networking based on Ethernet |
| CN107528684B (en) * | 2016-06-20 | 2021-10-26 | 现代自动车株式会社 | First communication node in Ethernet-based vehicular network and operation method thereof |
| CN109792703A (en) * | 2016-09-30 | 2019-05-21 | 瑞典爱立信有限公司 | It is adapted between simultaneously operating and asynchronous operation based on parameter set |
| CN114173277A (en) * | 2021-10-29 | 2022-03-11 | 四川中电昆辰科技有限公司 | Positioning base station synchronization and displacement monitoring system and monitoring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10498508B2 (en) | Device, network, and method for communications with fast adaptive transmission and reception | |
| CN108353393B (en) | Communication device, network and method for opportunistic transmission and reception | |
| US11917460B2 (en) | User equipment handover | |
| EP2984888B1 (en) | Systems and methods for network adaptation support in wireless network | |
| US9497693B2 (en) | Extension carrier discovery for carrier aggregation | |
| EP3089531B1 (en) | User terminal and radio communication method | |
| KR101208808B1 (en) | A method for generating the group id of the random access response message, and a random access method | |
| WO2015174437A1 (en) | Wireless base station, user terminal, and wireless communication system | |
| EP2753037A1 (en) | Method and device for interference control | |
| CN103069896A (en) | Apparatus and method for performing random access in a wireless communication system | |
| CN101854645A (en) | Method, base station and terminal for monitoring synchronization state of base stations | |
| CN110958620A (en) | Method and device for configuring measurement signal | |
| CA2932561C (en) | Simultaneous transmission on multiple frequencies for dual connectivity communication devices | |
| JP6400156B2 (en) | Cellular base station and method of operating it | |
| US11627502B2 (en) | Measurements for multicast/broadcast service continuity | |
| US20220086672A1 (en) | Inter-distributed unit (inter-du) crosslink interference (cli) measurement and reporting | |
| WO2020170218A1 (en) | Methods for flexible cli measurement reporting | |
| EP3209073B1 (en) | Small base station and communication control method therefor | |
| CN116325838A (en) | Downlink/uplink (DL/UL) handover capability reporting for high subcarrier spacing (SCS) systems | |
| CN104519555A (en) | Method and device for information transmission | |
| EP3682666B1 (en) | Techniques and apparatuses for random access resource indication using a time offset | |
| WO2008130300A1 (en) | A method of transmitting down link data | |
| US11871406B2 (en) | Split bearer round trip time (RTT) latency optimization | |
| US20230128596A1 (en) | Managing multiple simultaneous periodic uplink transmissions | |
| KR20150088739A (en) | Apparatus for device to device synchronization signal transmission on LTE device to device communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20101006 |