CN102547976B - The localization method of global positioning system deflecting base station and device - Google Patents
The localization method of global positioning system deflecting base station and device Download PDFInfo
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- CN102547976B CN102547976B CN201110439615.0A CN201110439615A CN102547976B CN 102547976 B CN102547976 B CN 102547976B CN 201110439615 A CN201110439615 A CN 201110439615A CN 102547976 B CN102547976 B CN 102547976B
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Abstract
The embodiment of the invention discloses a kind of localization method and device of global position system GPS deflecting base station, relate to wireless communication technology field, for solving the problem of how automatically positioning GPS deflecting base station.In the present invention, obtain area interference information from operation maintenance center OMCR; The base station of doubtful interference source is determined according to the area interference information obtained; Close the base station of each doubtful interference source determined successively, and each base station only closing a doubtful interference source, behind the base station often closing a doubtful interference source, again obtain area interference information from OMCR, determine whether interference is eliminated according to the area interference information again obtained, when disturbing elimination, determine that the base station of this doubtful interference source is GPS deflecting base station.Adopt the present invention, achieve the automatic targeting scheme of Gps deflecting base station.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of localization method and device of global positioning system deflecting base station.
Background technology
In existing wireless communication system, main employing global positioning system (Global PositioningSystems, GPS) clock source is realized synchronous, generally on each base station or some cluster the base station of placing, a GPS is installed, to realize the clock synchronous of communication system.Because GPS can be subject to weather, building blocks and the impact of self performance, so GPS easily clock skew occurs.If there is clock skew in certain GPS, the clock that the clock that this GPS then can be caused to provide and other GPS provide is asynchronous, make the clock source of different base station asynchronous, and then cause uplink and downlink timeslot to misplace, cause the up of other base station of top-down effect of certain base station, there will be base station interference base station, communication system cannot effective information, the problem such as local cell communication paralysis etc. of normal receiving terminal.
Fig. 1 is the base station of GPS generation clock skew and the schematic diagram of GPS deflecting base station interference peripheral base station.Fig. 2 is the schematic diagram that time slot dislocation causes disturbing; wherein; due to the GPS generation clock skew of GPS deflecting base station; the uplink and downlink timeslot of GPS deflecting base station and normal Base Station is misplaced, causes to produce between the descending time slot 4 (TS4) of GPS deflecting base station and the ascending time slot 3 (TS3) of normal Base Station and disturb.DwPTS is descending special time slot, and UpPTS is uplink special time slot, and UP is ascending time slot.
After GPS generation clock skew, there will be the interference lifting of the base station of some regional area, cause call completing rate to decline, cutting off rate increases, the series of problems such as data service rate decline and voice quality difference.Be difficult to location from business presentation, if there is no professional tool, just need large component analysis, cause huge trouble to O&M.
Realizing in process of the present invention, inventor finds to there is following technical problem in prior art:
The first, in prior art when positioning GPS deflecting base station, need professional to carry professional equipment and position interference source and GPS deflecting base station to scene, length consuming time, efficiency is low;
Depend on personnel's technical ability in the position fixing process of the second, GPS deflecting base station unduly, the accuracy of positioning result cannot be ensured.
Summary of the invention
How automatically the embodiment of the present invention provides a kind of localization method and device of global positioning system deflecting base station, for solving the problem of positioning GPS deflecting base station.
A localization method for global position system GPS deflecting base station, the method comprises:
Area interference information is obtained from operation maintenance center OMCR; The base station of doubtful interference source is determined according to the area interference information obtained;
Close the base station of each doubtful interference source determined successively, and each base station only closing a doubtful interference source, behind the base station often closing a doubtful interference source, again obtain area interference information from OMCR, determine whether interference is eliminated according to the area interference information again obtained, when disturbing elimination, determine that the base station of this doubtful interference source is GPS deflecting base station; Open the base station of this doubtful interference source.
A positioner for global position system GPS deflecting base station, this device comprises:
Doubtful site analysis module, for obtaining area interference information from operation maintenance center OMCR; The base station of doubtful interference source is determined according to the area interference information obtained;
The whole network interference investigation module, for closing the base station of each doubtful interference source determined successively, and each base station only closing a doubtful interference source, behind the base station often closing a doubtful interference source, again obtain area interference information from OMCR, determining whether interference is eliminated according to the area interference information again obtained, when disturbing elimination, determining that the base station of this doubtful interference source is GPS deflecting base station; Open the base station of this doubtful interference source.
In this programme, after obtaining area interference information from OMCR, the base station of doubtful interference source is determined according to the area interference information obtained, by the base station of closing a doubtful interference source and the area interference information again got after closing the base station of doubtful interference source at every turn, determine whether the base station of the doubtful interference source of closing is GPS deflecting base station.Visible, present invention achieves the automatic targeting scheme of Gps deflecting base station, solve the problem of how automatically locating Gps deflecting base station.
Accompanying drawing explanation
Fig. 1 is that in prior art, peripheral base station to be interfered schematic diagram because of GPS deflecting base station;
Fig. 2 is the time slot dislocation schematic diagram of GPS sideslip of the prior art;
The method flow schematic diagram that Fig. 3 provides for the embodiment of the present invention;
The cordless communication network webmaster schematic diagram that Fig. 4 provides for the embodiment of the present invention;
The apparatus structure schematic diagram that Fig. 5 provides for the embodiment of the present invention.
Embodiment
In order to realize the automatic targeting scheme of Gps deflecting base station, the embodiment of the present invention provides a kind of localization method of GPS deflecting base station, in this method, after acquisition area interference information, determines the base station of doubtful interference source according to the area interference information obtained; By the base station of closing doubtful interference source and the area interference information again got after closing the base station of this doubtful interference source, determine GPS deflecting base station.
See Fig. 3, the localization method of the GPS deflecting base station that the embodiment of the present invention provides, comprises the following steps:
Step 30: obtain area interference information from operation maintenance center (OMCR); The base station of doubtful interference source is determined according to the area interference information obtained;
Here, the area interference information of all base stations can be obtained from OMCR.Area interference information is the interfere information of network element cell-level, can be specifically slot interfering signal of time code power (ISCP) value, and ISCP value is the total power value of adjacent cell interference and receiver thermal noise in a certain time slot.Certainly, area interference information can also be that any other can reflect the information of area interference situation.
Step 31: the base station closing each doubtful interference source determined successively, and each base station only closing a doubtful interference source, behind the base station often closing a doubtful interference source, again obtain area interference information from OMCR, determine whether interference is eliminated according to the area interference information again obtained, when disturbing elimination, determine that the base station of this doubtful interference source is GPS deflecting base station.
Here, when disturbing elimination, determining that the base station of the doubtful interference source of current closedown is GPS deflecting base station, when interference is not eliminated, then determining that the base station of the doubtful interference source of current closedown is not GPS deflecting base station; After whether the base station of the doubtful interference source determining current closedown is GPS deflecting base station, reopen the base station of the doubtful interference source of current closedown, to ensure each base station only closing a doubtful interference source, thus ensure the accuracy of the result of positioning GPS deflecting base station.
In step 30, when area interference information is ISCP value, determine the base station of doubtful interference source according to the area interference information got, specific implementation can be as follows:
For each ISCP value obtained, determining whether this ISCP value is greater than the normal ISCP value preset, when being defined as being, determining that the base station of this ISCP value correspondence is the base station of doubtful interference source, when being defined as no, determine that the base station of this ISCP value correspondence is not the base station of doubtful interference source.Here, the span of normal ISCP value can be [-110dBm ,-95dBm], and preferably, the value of normal ISCP value is-108dBm, and certainly, the value of normal ISCP value can rule of thumb set arbitrarily.
In step 31, the method of closing the base station of doubtful interference source can be: by the instruction of OMCR to the transmission deactivating cell, base station of this doubtful interference source, this instruction can be automatically performed after the base station of this doubtful interference source receives the instruction of deactivating cell, after running succeeded, the transmitting and receiving function Close All of all communities radiofrequency signal, base station no longer externally provides service.
Preferably, in order to improve the accuracy of the result of positioning GPS deflecting base station, in step 31, after determining interference elimination and before determining that the base station of this doubtful interference source is GPS deflecting base station, following operation at least one times can be repeated: the base station closing this doubtful interference source, and again obtain area interference information from OMCR, determine whether interference is eliminated according to the area interference information again obtained; All determine that interference is eliminated after performing aforesaid operations if each, then determine that the base station of this doubtful interference source is GPS deflecting base station.
Behind the above-mentioned base station closing doubtful interference source, again can obtain the area interference information of the adjacent base station of the base station of the doubtful interference source of current closedown or the area interference information of all base stations from OMCR.
The area interference information that above-mentioned basis obtains again determines whether interference is eliminated, and specific implementation can be as follows:
Judge whether the ISCP value again obtained is greater than the normal ISCP value preset, if so, then determine that interference is not eliminated; Otherwise, determine that interference is eliminated.
Preferably, in step 31, before the base station closing doubtful interference source, can first to the base station of each doubtful interference source determined in step 30, judge whether the information of the base station of this doubtful interference source is stored in GPS sideslip website table respectively, then, preferentially can be stored in the following operation of base station execution of the doubtful interference source in GPS sideslip website table to its information: the base station closing this doubtful interference source, again obtain area interference information from OMCR, determine whether interference is eliminated according to the area interference information again obtained, when disturbing elimination, determine that the base station of this doubtful interference source is GPS deflecting base station, again its information is not stored in the following operation of base station execution of the doubtful interference source in GPS sideslip website table: the base station closing this doubtful interference source, again obtain area interference information from OMCR, determine whether interference is eliminated according to the area interference information again obtained, when disturbing elimination, determine that the base station of this doubtful interference source is GPS deflecting base station.Here, when the information of the base station of doubtful interference source is stored in GPS sideslip website table, illustrate that the situation of oversampling clock sideslip occurred in the past in the base station of this doubtful interference source, so, the probability that clock sideslip occurs again for the base station of this doubtful interference source is larger, therefore the preferential base station to this doubtful interference source performs shutoff operation and judges that whether the base station of this doubtful interference source is the operation of GPS deflecting base station, can improve the efficiency of positioning GPS deflecting base station.
Accordingly, the information of the GPS deflecting base station determined can be kept in GPS sideslip website table in step 31, use for location next time.
Preferably, in order to automatically eliminate interference, after determining GPS deflecting base station, the GPS deflecting base station determined can be closed; Or prompting user, the need of closing the GPS deflecting base station determined, when user selects to need to close, closes the GPS deflecting base station determined.
Preferably, for the ease of the disturbed condition of manual analysis network, can to the closing information of the base station of doubtful interference source, close this doubtful interference source base station after disturb the base station of information and this doubtful interference source whether eliminated to be whether that the information of GPS deflecting base station carries out simultaneous display.
Below the present invention is specifically described:
Adopt this programme, automatic searching in the network of Gps synchronous communication can be adopted to go out Gps deflecting base station at one, and this Gps deflecting base station is repaired or isolation processing, get rid of this Gps deflecting base station to the impact of other base station.By using the program, greatly can improve base station and the efficiency that localized network that clock sideslip causes is disturbed fault location, troubleshooting occurs.
As shown in Figure 4, in a cordless communication network, in order to managed network element preferably, when NE quantity acquires a certain degree Shi Douyaoyou operation maintenance center (OMCR), OMCR is responsible for realizing various monitoring management to network element each in network.Webmaster personnel can find network element failure from OMCR easily, can do separately or batch process for each network element.
The module performing this programme can be deployed on OMCR, also can be deployed in separately on other equipment, only need this module and OMCR on same local area network (LAN), can access OMCR to make this module.
Fig. 5 is the principle schematic orienting GPS deflecting base station, and the operation principle of this programme is described below by this Fig. 5.
The module performing this programme is made up of three function sub-modules altogether: the interference of doubtful site analysis module, the whole network is investigated module and presents module.
Wherein, doubtful site analysis module is the input analysis module of the first order, this module in charge is according to the interference analysis rule preset, and the base station of doubtful interference source is determined from the area interference information that OMCR collects, and generate the doubtful site list comprising the base station information of doubtful interference source, doubtful site list is exported to the whole network interference investigation module and use.
The whole network interference investigation module determines the module of GPS deflecting base station, it is core processing module, the whole network interference investigation module closes the base station in doubtful site list successively, behind a base station in the doubtful site list of each closedown, again obtaining area interference information from OMCR, determining whether interference is eliminated according to the area interference information again obtained, when disturbing elimination, the base station determining current closedown is GPS deflecting base station, and opens the base station of this doubtful interference source; When interference is not eliminated, then determine that the base station of current closedown is not GPS deflecting base station, and open the base station of this doubtful interference source.For ensureing the accuracy of positioning result, this module additionally provides confirmation function, namely after determining interference elimination and before determining that this base station is GPS deflecting base station, following operation at least one times can be repeated: close this base station, and again obtain area interference information from OMCR, determine whether interference is eliminated according to the area interference information again obtained; All determine that interference is eliminated after performing aforesaid operations if each, then determine that this base station is GPS deflecting base station.GPS deflecting base station, after determining GPS deflecting base station, can be kept in GPS sideslip website table by the whole network interference investigation module.
Presenting module in charge and synchronously present module ruuning situation and final result, is exhibitive module.In module running, present closing information that module in charge synchronously presents the base station to doubtful interference source, close this doubtful interference source base station after disturb the base station of information and this doubtful interference source whether eliminated to be whether the information of GPS deflecting base station.After this module work completes, final GPS deflecting base station information and relevant treatment conclusion all present in this module, such as, for the base station closed, if interference is not eliminated, handling suggestion then behind this base station indicates " non-interference Source Site, without the need to operation, please keep present situation ", if interference is eliminated, handling suggestion then behind this base station indicates " this is interference source website, closes, and please go up station troubleshooting ".This instrument can carry out the operation of cutting out website automatically.
Flow process is as follows:
First, the area interference information collected from OMCR is imported in interfere information acquisition module.Doubtful website confirms module again according to the interference analysis rule set, and analyzes, draw doubtful site list, doubtful site list is exported to the whole network ELIMINATION OF ITS INTERFERENCE module the area interference information imported;
Then, the whole network ELIMINATION OF ITS INTERFERENCE module determines Gps deflecting base station according to doubtful site list.Concrete grammar is: close the base station in doubtful site list successively, each only closedown base station.After often closing a base station, again extracting from OMCR and import area interference information, judging whether the base station closed is GPS deflecting base station by confirming whether interference is eliminated.When being defined as being, being the accuracy promoting location, can this base station being closed by repeatedly (such as: three times) and carry out interference contrast and confirm further.The whole network ELIMINATION OF ITS INTERFERENCE module can by the closing information of the base station to doubtful interference source, close this doubtful interference source base station after disturb the base station of information and this doubtful interference source whether eliminated to be whether that the information of GPS deflecting base station is exported to and presented module.
Present module synchronization and present above-mentioned information, and after module is run, list the information of GPS deflecting base station, and provide integrated treatment conclusion.
Whole module relates to two inside, two outside totally four interfaces.Wherein,
Two external interfaces are: network element interfere information input interface 1 (in Fig. 5, mark has two), disturb regular input interface 2.
Two internal interfaces are: interface 3, the whole network interference of doubtful site analysis module and the whole network interference investigation module are investigated module and presented the interface 4 of module.
Network element interfere information input interface 1 is the interface that outside area interference information imports doubtful site analysis module.All this interface can be called in doubtful site analysis module and the whole network interference investigation module.
Regular input interface 2 is disturbed to be responsible for definition interference rule and to be imported to the interface of doubtful site analysis module.
The interface 3 of doubtful site analysis module and the whole network interference investigation module is doubtful site analysis module by investigation doubtful site list out exports to the interface that the whole network interference investigation module uses.
The whole network interference investigation module and present the interface 4 of module, be the whole network interference investigation module in the process of investigation GPS deflecting base station, present the interface that the closed condition of the base station of doubtful interference source and interference variations situation use presenting module synchronization.
The present invention, except being applicable to time-division Long Term Evolution (TD-LTE), TD SDMA (TD-SCDMA) communication system, being applicable to other simultaneously and using Gps as the communication system of clock synchronous.
See Fig. 5, the embodiment of the present invention provides a kind of positioner of GPS deflecting base station, and this device comprises:
Doubtful site analysis module, for obtaining area interference information from operation maintenance center OMCR; The base station of doubtful interference source is determined according to the area interference information obtained;
The whole network interference investigation module, for closing the base station of each doubtful interference source determined successively, and each base station only closing a doubtful interference source, behind the base station often closing a doubtful interference source, again obtain area interference information from OMCR, determining whether interference is eliminated according to the area interference information again obtained, when disturbing elimination, determining that the base station of this doubtful interference source is GPS deflecting base station; Open the base station of this doubtful interference source.
Further, described area interference information is slot interfering signal of time code power ISCP value.
Further, described doubtful site analysis module is used for
For each ISCP value obtained, determining whether this ISCP value is greater than the normal ISCP value preset, when being defined as being, determining that the base station of this ISCP value correspondence is the base station of doubtful interference source.
Further, described the whole network interference investigation module is used for:
Judge whether the ISCP value again obtained is greater than the normal ISCP value preset, if so, then determine that interference is not eliminated; Otherwise, determine that interference is eliminated.
Further, described the whole network interference investigation module also for:
After determining interference elimination and before determining that the base station of this doubtful interference source is GPS deflecting base station, repeat following operation at least one times: the base station closing this doubtful interference source, and again obtain area interference information from OMCR, determine whether interference is eliminated according to the area interference information again obtained;
All determine that interference is eliminated after performing aforesaid operations if each, then determine that the base station of this doubtful interference source is GPS deflecting base station.
Further, this device also comprises:
Processing module, for closing the GPS deflecting base station determined; Or prompting user, the need of closing the GPS deflecting base station determined, when user selects to need to close, closes the GPS deflecting base station determined.
Further, comprise further:
Present module, for the base station to doubtful interference source closing information, close this doubtful interference source base station after disturb the base station of information and this doubtful interference source whether eliminated to be whether that the information of GPS deflecting base station shows.
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the present invention provides, after obtaining area interference information from OMCR, the base station of doubtful interference source is determined according to the area interference information obtained, by the base station of closing a doubtful interference source and the area interference information again got after closing the base station of doubtful interference source at every turn, determine whether the base station of the doubtful interference source of closing is GPS deflecting base station.Visible, present invention achieves the automatic targeting scheme of Gps deflecting base station, solve the problem of how automatically locating Gps deflecting base station.
The application of the invention, can remote operation, automatically judge because clock sideslip causes the equipment sources disturbed in Gps synchronous communication system, and automatically to fix a breakdown.Thus shorten determination time for attendant's quick solution fault, decrease the expense expenditure of station, professional test equipment on manpower, effectively improve the ability of maintenance of existing network, also promote the satisfaction that client serves network operation simultaneously.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (6)
1. a localization method for global position system GPS deflecting base station, is characterized in that, the method comprises:
Area interference information is obtained from operation maintenance center OMCR; The base station of doubtful interference source is determined according to the area interference information obtained;
Close the base station of each doubtful interference source determined successively, and each base station only closing a doubtful interference source; Behind the base station often closing a doubtful interference source, again obtain area interference information from OMCR, determining whether interference is eliminated according to the area interference information again obtained, when disturbing elimination, determining that the base station of the doubtful interference source of current closedown is GPS deflecting base station; And open the base station of this doubtful interference source;
Described area interference information is slot interfering signal of time code power ISCP value;
The area interference information that described basis gets determines the base station of doubtful interference source, specifically comprise: for each ISCP value obtained, determining whether this ISCP value is greater than the normal ISCP value preset, when being defined as being, determining that the base station of this ISCP value correspondence is the base station of doubtful interference source;
The area interference information that described basis obtains again determines whether interference is eliminated, and specifically comprises: judge whether the ISCP value again obtained is greater than the normal ISCP value preset, and if so, then determines that interference is not eliminated; Otherwise, determine that interference is eliminated;
After determining interference elimination and before determining that the base station of this doubtful interference source is GPS deflecting base station, comprise further: repeat following operation at least one times: the base station closing this doubtful interference source, and again obtain area interference information from OMCR, determine whether interference is eliminated according to the area interference information again obtained; The described base station determining this doubtful interference source is GPS deflecting base station, specifically comprises: all determine that interference is eliminated after performing aforesaid operations if each, then determine that the base station of this doubtful interference source is GPS deflecting base station.
2. the method for claim 1, is characterized in that, after determining GPS deflecting base station, comprises further:
Close the GPS deflecting base station determined; Or,
Prompting user, the need of closing the GPS deflecting base station determined, when user selects to need to close, closes the GPS deflecting base station determined.
3. the method for claim 1, is characterized in that, comprises further:
To the closing information of the base station of doubtful interference source, close this doubtful interference source base station after disturb the base station of information and this doubtful interference source whether eliminated to be whether that the information of GPS deflecting base station shows.
4. a positioner for global position system GPS deflecting base station, is characterized in that, this device comprises:
Doubtful site analysis module, for obtaining area interference information from operation maintenance center OMCR; The base station of doubtful interference source is determined according to the area interference information obtained;
The whole network interference investigation module, for closing the base station of each doubtful interference source determined successively, and each base station only closing a doubtful interference source, behind the base station often closing a doubtful interference source, again obtain area interference information from OMCR, determining whether interference is eliminated according to the area interference information again obtained, when disturbing elimination, determining that the base station of this doubtful interference source is GPS deflecting base station; Open the base station of this doubtful interference source;
Described area interference information is slot interfering signal of time code power ISCP value;
Described doubtful site analysis module is used for: for each ISCP value obtained, determine whether this ISCP value is greater than the normal ISCP value preset, and when being defined as being, determines that the base station of this ISCP value correspondence is the base station of doubtful interference source;
Described the whole network interference investigation module is used for: judge whether the ISCP value again obtained is greater than the normal ISCP value preset, if so, then determine that interference is not eliminated; Otherwise, determine that interference is eliminated;
Described the whole network interference investigation module also for: determine interference eliminate after and before determining that the base station of this doubtful interference source is GPS deflecting base station, repeat following operation at least one times: the base station closing this doubtful interference source, and again obtain area interference information from OMCR, determine whether interference is eliminated according to the area interference information again obtained; All determine that interference is eliminated after performing aforesaid operations if each, then determine that the base station of this doubtful interference source is GPS deflecting base station.
5. device as claimed in claim 4, it is characterized in that, this device also comprises:
Processing module, for closing the GPS deflecting base station determined; Or prompting user, the need of closing the GPS deflecting base station determined, when user selects to need to close, closes the GPS deflecting base station determined.
6. device as claimed in claim 4, is characterized in that, comprise further:
Present module, for the base station to doubtful interference source closing information, close this doubtful interference source base station after disturb the base station of information and this doubtful interference source whether eliminated to be whether that the information of GPS deflecting base station shows.
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| CN109121142B (en) * | 2017-06-23 | 2020-09-22 | 大唐移动通信设备有限公司 | Method and device for detecting GPS out-of-step cell |
| CN111093218A (en) * | 2018-10-23 | 2020-05-01 | 大唐移动通信设备有限公司 | Interference analysis method and device |
| CN109982331B (en) * | 2019-03-29 | 2023-02-07 | 上海翎沃电子科技有限公司 | Spectrum interference back-off selection method and system |
| CN111447638B (en) * | 2020-04-03 | 2023-10-13 | 北京运安智维科技有限公司 | Method for solving mutual interference of double-network signals caused by single-network clock fault of wireless system |
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| CN1838797A (en) * | 2005-03-22 | 2006-09-27 | 中兴通讯股份有限公司 | Base station clock offset correction method for mobile positioning |
| 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 |
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