CN104349371A - Detection method and device used for detecting reference clocks of base stations - Google Patents
Detection method and device used for detecting reference clocks of base stations Download PDFInfo
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- CN104349371A CN104349371A CN201310335410.7A CN201310335410A CN104349371A CN 104349371 A CN104349371 A CN 104349371A CN 201310335410 A CN201310335410 A CN 201310335410A CN 104349371 A CN104349371 A CN 104349371A
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Abstract
The invention provides a detection method and device used for detecting reference clocks of base stations. The method includes the following steps: obtaining a plurality of clock differences of all to-be-detected base station pairs; according to the plurality of clock differences of the base station pairs and clock differences, obtaining time differences and obtaining clock difference change rates of the base station pairs; and comparing the clock difference change rates of the base station pairs and preset thresholds and outputting detection results. Through implementation of the method and device, the clock difference change rates of all base station pairs are calculated and compared with the preset thresholds so as to determine whether deviation of reference clocks of two base stations in each base station pair exists so that a target of judging whether clock difference of two base stations exists is realized and problems, which exist in the prior art, that only the difference of a reference clock of each base station and a standard clock is calculated so that alarm is inaccurate and the like are solved.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of detection method for base stations detected reference clock and device.
Background technology
Along with the development of the communication technology, the application of mobile terminal is more and more extensive, the communication network of each mobile operator is also in fast development, the access process of mobile terminal and each network, series of problems can have been caused, particularly mobile terminal is when mobile, needs to carry out cell reselection, to ensure the continuity communicated; But, when communication frequency deviation between community (benchmark community) when mobile terminal place and the Target cell as its gravity treatment object exceeds the tolerance of this mobile terminal, to occur mobile terminal can not gravity treatment to Target cell, and then cause going offline of mobile terminal, have a strong impact on the experience of user.
Occur between community that communication frequency deviation is caused by the difference of each cell base station reference itself oscillation frequency clock, by the impact of existing technique, be difficult to ensure that the frequency of oscillation of all base stations reference clock is all identical, as when dispatching from the factory, to micro-base station equipment frequency of oscillation and standard frequency can permissible error scope be ± 0.1ppm, and this error range can meet the communicating requirement of most of mobile terminal, but in actual use, the obtain manner of base station reference clock is: core net CN is synchronized to independent external clock reference, transmission equipment between IU mouth obtains clock by physical connection from CN, the IU interface of base station controller RNC extracts clock by physical connection from transmission equipment, after the process of RNC internal clocking processing module, transmission equipment between clock signal to IUB mouth, base station NodeB and then extract reference clock from transmission equipment, flow to the clock of any one link in link at this reference clock to shake, the reference clock jitter that the final base station NodeB in capital is final, thus cause base station NodeB clock frequency accuracy on the Uu mouth be connected with terminal UE to ensure.
The existing deviation to reference clock source, base station generally takes the mode of alarm, and such as RNC/NodeB timing detects whether the reference clock deviation of base station NodeB exceeds a threshold value, as ± 0.15ppm, when the threshold value is exceeded, and will report and alarm; But when the deviation of the reference clock of NodeB does not meet alarm conditions, error as base station 1 is+0.13ppm, the error of base station 2 is-0.13ppm, now can not report and alarm, but when mobile terminal needs the community from the cell reselection of base station 1 to base station 2, because the actual error between two these communities is 0.26ppm, be greater than the tolerance of mobile terminal, now just there will be mobile terminal cannot demodulation community 2 CF signal and cause going offline.
Therefore, provide a kind of can base stations detected reference clock to ensure the method for the functions such as such as cell reselection/quick position fault base station, be those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
The invention provides a kind of detection method for base stations detected reference clock and device, solving in prior art can not the problem of fast detecting base station reference clock.
The invention provides a kind of detection method for base stations detected reference clock, in one embodiment, this detection method comprises: obtain multiple clock differences that all base stations to be detected are right, and the multiple clock difference right according to each base station and each clock difference acquisition time obtain its clock difference rate of change; The clock difference rate of change that more each base station is right and predetermined threshold value size, and output detections result.
Further, in the above-described embodiments, the step obtaining the right clock difference in all base stations to be detected comprises: obtain the clock difference that all communities are right; According to the incidence relation of community and base station, clock difference right for each community is converted to the clock difference right with the base station of each community centering two cell association.
Further, in the above-described embodiments, the step obtaining the right clock difference in all communities comprises: receiving package contains cell ID and timing parameter examining report thereof; The timing parameter of centering two community, each community is determined according to the incidence relation of cell number and cell ID and examining report; The timing parameter of centering two community, each community is utilized to obtain the right clock difference in each community.
Further, in the above-described embodiments, timing parameter comprises each community and to be partially worth and/or code is worth partially at the frame in certain moment; Clock difference is frame be partially worth and/or code be partially worth the difference of community centering two community in this moment.
Further, in the above-described embodiments, when the number that base station to be detected is right is 1, testing result comprises: if the right clock difference rate of change in this base station is less than predetermined threshold value, deviation is not had between the reference clock of then this base station centering two base station, otherwise, between the reference clock of this base station centering two base station, there is deviation.
Further, in the above-described embodiments, when the number that base station to be detected is right is greater than 1, testing result comprises: if the right clock difference rate of change in all base stations comprising certain base station is all greater than/equals predetermined threshold value, then the reference clock that this base station is right exists deviation.
Present invention also offers a kind of checkout gear for base stations detected reference clock, in one embodiment, this checkout gear comprises: for obtaining the right multiple clock differences in all base stations to be detected, the multiple clock difference right according to each base station and each clock difference acquisition time obtain the computing module of its clock difference rate of change; And, the clock difference rate of change right for more each base station and predetermined threshold value size, and the processing module of output detections result.
Beneficial effect of the present invention:
The detection method of base stations detected reference clock provided by the invention and device, by calculating the right clock difference rate of change in all base stations, and itself and predetermined threshold value are compared, to determine whether the reference clock of this base station centering two base station exists deviation, achieve and judge whether two base stations exist the target of clock difference, solve in prior art the problems such as alarm that the difference that only calculates oneself reference clock of each base station and standard time clock causes is inaccurate; Whether the present invention can exist reference clock deviation by only calculating single base station centering base station, reach judge mobile terminal whether can from this base station the cell reselection of an internal base station to the community of another base station; The present invention can also form base station pair to all base stations combination of two in communication network, according to comprising all base stations of a certain base station to whether all there is reference clock deviation, judge whether this base station breaks down, enhance the experience of operator and/or mobile phone users.
Accompanying drawing explanation
The schematic diagram of the detection method that Fig. 1 provides for first embodiment of the invention;
The schematic diagram of the detection method that Fig. 2 provides for second embodiment of the invention;
The schematic diagram of the checkout gear that Fig. 3 provides for third embodiment of the invention;
The schematic diagram of the detection method that Fig. 4 provides for fourth embodiment of the invention;
The schematic diagram of the detection method that Fig. 5 provides for fifth embodiment of the invention.
Embodiment
The present invention can apply in all communication systems all with base station reference clock related aspect, the technical foundation of institute of the present invention foundation is: base station reference clock and identical with the frequency of its related cell signal of communication, the vibrations of base station reference clock will cause the change of its related cell communication signal frequency, and its rate of change is identical; Hereafter by embodiment mode by reference to the accompanying drawings the present invention made and further annotate explanation.
The schematic diagram of the detection method that Fig. 1 provides for first embodiment of the invention, as shown in Figure 1, in the present embodiment, provided by the inventionly to comprise the following steps for the detection method of reference clock between base station:
S101: obtain multiple clock differences that all base stations to be detected are right;
Base station to be detected in this step is formed by all base stations to be detected combination of two, and the present invention can calculate the right clock difference in all base stations to be detected simultaneously, also successively can calculate the right clock difference in all base stations to be detected, for ease of hereafter illustrating, in the following embodiments, be set to successively detect the right clock difference in each base station, simultaneously, for ease of describing, two base stations of the base station centering as current detection object are defined as the first base station and the second base station respectively, predictably, here the first base station and the second base station can be any two base stations in communication system, such as, when the present invention being applied to the cell reselection field of mobile terminal, base station corresponding for community, current for mobile terminal place can be defined as the first base station, base station corresponding for community as same mobile terminal cell reselection object is defined as the second base station, simultaneously, because a base station (may be referred to as community in prior art by corresponding multiple sector cell, it has different cell number), but, because these sector cells all depend on same base station, its communication frequency is identical, so, there is clock difference between these sector cells, for convenience of explanation, the sector cell merging that these are depended on same base station by the present invention is in the following embodiments called a community, also be, in the embodiment stated under the invention, base station and community are incidence relations one to one, so based on above to the definition of centering base station, base station, be the first community by cell definitions corresponding for the first base station, be the second community by cell definitions corresponding for the second base station,
Preferably, step S101 can comprise: obtain the clock difference that all communities are right; According to the incidence relation of community and base station, clock difference right for each community is converted to the clock difference right with the base station of each community centering two cell association; The community at this place to be with base station to relative to relation, also form a community pair by the first community in above-mentioned and the second community;
Preferably, the step obtaining the right clock difference in all communities comprises: receiving package contains the examining report of cell ID and timing parameter thereof; The timing parameter of centering two community, each community is determined according to the incidence relation of cell number and cell ID and examining report; The timing parameter of centering two community, each community is utilized to obtain the right clock difference in each community; This examining report can come periodically by mobile terminal/and detect and upload in real time, the cell ID at this place can be the community local identities code in the examining report of mobile terminal reporting, as main scrambler etc., recipient (as base station controller PNC) inquires the cell number of this community according to the cell ID global information of internal maintenance;
Preferably, timing parameter comprises community and to be partially worth and/or code is worth partially at the frame in a moment; Clock difference be the first base station and the second base station separately community in the difference that frame is worth partially and/or code is worth partially in this moment;
S102: the multiple clock difference right according to each base station and each clock difference acquisition time obtain its clock difference rate of change;
Preferably, step S102 can comprise: calculate the changing value of clock difference within the unit interval between the first base station and the second base station, using the clock difference rate of change that changing value obtains between the first base station and the second base station as clock difference;
S103: the clock difference rate of change that more each base station is right and predetermined threshold value size;
This predetermined threshold value is a value of reference clock difference between the first base station and the second base station, accordingly, this value can be unique numeral, also can be a number range, foundation is compared in order to provide to step S103, in other embodiments, the detection method for base station reference clock provided by the invention can also comprise the step arranging predetermined threshold value;
S104: output detections result;
When the number that base station to be detected is right is 1, now, the present invention can be used for judging whether to carry out cell reselection, so, testing result comprises: if the right clock difference rate of change in this base station is less than predetermined threshold value, then do not have deviation between the reference clock of this base station centering two base station, cell reselection can be carried out, otherwise, there is deviation between the reference clock of this base station centering two base station, cannot cell reselection be carried out;
When the number that base station to be detected is right is greater than 1, now, the present invention can be used for quick position fault base station, so, testing result comprises: if the right clock difference rate of change in all base stations comprising certain base station is all greater than/equals predetermined threshold value, there is deviation in the reference clock that then this base station is right, this base station fault; Otherwise carry out the inspection of next base station.
The schematic diagram of the detection method that Fig. 2 provides for second embodiment of the invention, as shown in Figure 2, in the present embodiment, the detection method for base station reference clock provided by the invention comprises the following steps:
S201: predetermined threshold value is set;
Predetermined threshold value set by this step S201 can carry out personal settings according to the different accommodations of each mobile terminal to communication signal frequency in communication network, as, mobile terminal 1 is good to the correcting deviation tolerance of reference clock between two base stations, what so predetermined threshold value just can be arranged is larger, mobile terminal 2 is poor to the correcting deviation tolerance of reference clock between two base stations, and so predetermined threshold value just tackles the smaller of setting; Certainly, the foundation arranging predetermined threshold value can also be arrange according to the requirement of technique, communication protocol etc.
S202: the clock difference rate of change that more each base station is right and predetermined threshold value size, exports comparative result; This step is identical with step S103 and step S104, is not repeating.
The schematic diagram of the checkout gear that Fig. 3 provides for third embodiment of the invention, as shown in Figure 3, in the present embodiment, checkout gear 3 provided by the invention comprises: computing module 31 and processing module 32, wherein,
Computing module 31 is for obtaining the right multiple clock differences in all base stations to be detected, and the multiple clock difference right according to each base station and each clock difference acquisition time obtain its clock difference rate of change;
Processing module 32 is for the right clock difference rate of change in more each base station and predetermined threshold value size, and output detections result.
Preferably, in other embodiments, computing module 31 shown in Fig. 3 comprises: comprising: for obtaining the acquisition module of the right clock difference in all communities, and for the incidence relation according to community and base station, clock difference right for each community is converted to the calculating sub module of the clock difference right with the base station of each community centering two cell association.
Preferably, in other embodiments, acquisition module in above-described embodiment contains cell ID and timing parameter examining report thereof specifically for receiving package, determine the timing parameter of centering two community, each community according to the incidence relation of cell number and cell ID and examining report, utilize the timing parameter of centering two community, each community to obtain the right clock difference in each community.
Preferably, in other embodiments, the timing parameter that the acquisition module in above-described embodiment gets comprises each community and to be partially worth and/or code is worth partially at the frame in certain moment, and clock difference is frame be partially worth and/or code be partially worth the difference of community centering two community in this moment.
Preferably, in other embodiments, processing module 32 shown in Fig. 3 comprises the first process submodule, first process submodule is when the number right when base station to be detected is 1, output detections result: if the right clock difference rate of change in this base station is less than predetermined threshold value, deviation is not had between the reference clock of then this base station centering two base station, otherwise, there is deviation between the reference clock of this base station centering two base station.
Preferably, in other embodiments, processing module 32 shown in Fig. 3 comprises the second process submodule, second process submodule is when the number right when base station to be detected is greater than 1, output detections result: if the right clock difference rate of change in all base stations comprising certain base station is all greater than/equals predetermined threshold value, then the reference clock that this base station is right exists deviation.
In order to make detection technique provided by the invention be used, a kind of equipment that the present invention also provides, this equipment can be base station controller and/or other equipment such as base station and/or mobile terminal; In one embodiment, equipment provided by the invention comprises: memory, one or more processor, and one and multiple module, one or more module is stored in memory and is configured to be performed by one or more processor, and one or more module comprises the instruction for performing following steps:
Obtain the clock difference that all base stations to be detected are right, the clock difference right according to each base station obtains its clock difference rate of change;
The clock difference rate of change that more each base station is right and predetermined threshold value, and output detections result.
Hereafter for WCDMA system, in conjunction with embody rule example the present invention done and further annotate explanation.
The schematic diagram of the detection method that Fig. 4 provides for fourth embodiment of the invention, in this application example, do following hypothesis: when mobile terminal carries out cell reselection, run the detection method of reference clock between base station provided by the present invention, so, in this application example, be the first community by the cell definitions at current for mobile terminal place, the target cell definition that mobile terminal carries out cell reselection is the second community, and accordingly, the first base station and the second base station are also defined; As shown in Figure 4, in this application example, detection method provided by the invention comprises the following steps:
S401: predetermined threshold value is set;
According to the tolerance of mobile terminal self to reference clock difference between two base stations, this predetermined threshold value Th is set to Th=0.2ppm;
S402: determine the first base station and the second base station;
That supposes community, mobile terminal current place is numbered community 1, and the numbering of the re eligible community of its candidate is respectively community 2, community 3, and the base station corresponding with community 1, community 2 and community 3 is numbered base station 1, base station 2 and base station 3;
In this step, using base station 1 as the first base station, using base station 2 as the second base station;
S403: the clock difference calculating the first base station and the second base station;
The clock difference of the first base station and the second base station is calculated respectively at adjacent moment T1 and T2; In this step, mobile terminal (this mobile terminal and/or other mobile terminals) is utilized to report examining report to realize, the Surveillance in T1 moment comprises: when T1 detects the moment, the frame of community 1 is worth OTT1 and the inclined Tm1 of code partially, the frame of community 2 is worth OTT2 and the inclined Tm2 of code partially; The Surveillance in T2 moment comprises: when T2 detects the moment, the frame of community 1 is worth OTT1 ' and the inclined Tm1 ' of code partially, the frame of community 2 is worth OTT2 ' and the inclined Tm2 ' of code partially; So, detect the moment at T1, the clock difference Diff12 between community 1 and community 2 is:
Diff12=OTT1*38400+Tm1-(OTT2*38400+Tm2), 38400 be wherein the code number partially that a frame is corresponding;
Accordingly, detect the moment at T2, the clock difference Diff12 ' between community 1 and community 2 is:
Diff12’=OTT1’*38400+Tm1’-（OTT2’*38400+Tm2’）；
Wherein, Diff12 and Diff12 ' is also equal to the clock difference between base station 1 and base station 2.
S404: the clock difference rate of change calculating the first base station and the second base station;
Difference between T1 and T2 is scaled second, and in 1 second, base station outwards sends 100 frames; So, the clock difference rate of change V of the first base station and the second base station is:
V=（Diff12-Diff12’）/【（T1-T2）*100*38400】；
If existing, the Diff12=477232chip between base station 1 and base station 2, Diff12 '=473514chip; And, T1-T2=3681.917s; So, can calculate accordingly:
Clock difference rate of change V12=0.27ppm between base station 1 and base station 2;
If again, the Diff13=477232chip between base station 1 and base station 3, Diff13 '=476514chip; And, T1-T2=3681.917s; So, can calculate accordingly:
Clock difference rate of change V13=0.12ppm between base station 1 and base station 3;
S405: the size of comparison clock difference rate of change and predetermined threshold value;
This step is actual is compare: the size of V12 and Th, V13 and Th;
S406: output detections result;
In this application example, testing result is: the clock difference rate of change V12 between base station 1 and base station 2 is greater than predetermined threshold value Th, there is deviation between base station 1 and base station 2 between reference clock, and mobile terminal can not from community 1 gravity treatment to community 2; Clock difference rate of change V13 between base station 1 and base station 3 is less than predetermined threshold value Th, there is not deviation between base station 1 and base station 3 between reference clock, and mobile terminal can from community 1 gravity treatment to community 3.
The schematic diagram of the detection method that Fig. 5 provides for fifth embodiment of the invention, in this application example, do following hypothesis: when quick position fault base station, run the detection method of base station provided by the present invention reference clock, so, in this application example, eliminate calculate each base station to the concrete mode of clock difference rate of change because mode with embodiment illustrated in fig. 4 in step S403 and S404 identical; This assuming that need detect and locate the fault base station in 6 base stations, sets these 6 base stations and is respectively base station a, base station b, base station c, base station d, base station e and base station f in an embodiment; As shown in Figure 5, in this application example, detection method provided by the invention comprises the following steps:
S501: predetermined threshold value is set;
According to the tolerance of communication protocol base station reference clock deviation, this predetermined threshold value Th is set to Th=0.2ppm;
S502: calculate the clock difference rate of change that all base stations to be detected are right;
The mode of clock difference rate of change calculating each base station in this step right is identical with the step S403 in Fig. 4 and S404, is not repeating; These 6 base station combination of two can be formed 15 base stations pair to be detected, and setup algorithm result is as shown in table 1 below:
Table 1
| Base station a | Base station b | Base station c | Base station d | Base station e | Base station f | |
| Base station a | 0.2 | 0.23 | 0.24 | 0.22 | 0.21 | |
| Base station b | 0.2 | 0.1 | 0.2 | 0.12 | 0.14 | |
| Base station c | 0.23 | 0.1 | 0.25 | 0.12 | 0.14 | |
| Base station d | 0.24 | 0.2 | 0.25 | 0.27 | 0.2 | |
| Base station e | 0.22 | 0.12 | 0.12 | 0.27 | 0.1 |
| Base station f | 0.21 | 0.14 | 0.14 | 0.2 | 0.1 |
In upper table 1, namely the data of base station a and b intersection, base station are the right clock difference rate of change in the base station that is made up of base station a and base station b, other the like;
S503: the clock difference rate of change that more each base station is right and predetermined threshold value size;
Clock difference rate of change V right for base station to be detected individual in table 1 is compared with predetermined threshold value Th, obtain result as shown in table 2 below, in table 2, "Yes" represents this base station and is greater than/equals predetermined threshold value to clock difference rate of change, and "No" represents this base station and is less than predetermined threshold value to clock difference rate of change;
Table 2
| Base station a | Base station b | Base station c | Base station d | Base station e | Base station f | |
| Base station a | Be | Be | Be | Be | Be | |
| Base station b | Be | No | Be | No | No | |
| Base station c | Be | No | Be | No | No | |
| Base station d | Be | Be | Be | Be | Be | |
| Base station e | Be | No | No | Be | No | |
| Base station f | Be | No | No | Be | No |
S504: output detections result;
As shown in Table 2, in this application example, testing result is: the clock difference rate of change comprising the base station all to be detected of base station a or base station d right is all greater than/equals predetermined threshold value, then the reference clock of base station a and base station d all exists deviation, and also namely base station a and base station d breaks down.
In summary, by enforcement of the present invention, at least there is following beneficial effect:
First, by calculating the right clock difference rate of change in all base stations, and itself and predetermined threshold value are compared, to determine whether the reference clock of this base station centering two base station exists deviation, achieve and judge whether two base stations exist the target of clock difference, solve in prior art the problems such as alarm that the difference that only calculates oneself reference clock of each base station and standard time clock causes is inaccurate;
Secondly, whether the present invention can exist reference clock deviation by only calculating single base station centering base station, reach judge mobile terminal whether can from this base station the cell reselection of an internal base station to the community of another base station;
Again, the present invention can also form base station pair to all base stations combination of two in communication network, according to comprising all base stations of a certain base station to whether all there is reference clock deviation, judges whether this base station breaks down;
Finally, the present invention, by means of only at equipment, as increased corresponding software in base station controller RNC or mobile terminal UE, just can realize technical scheme of the present invention, the communication resource not outside occupying volume.
Below be only the specific embodiment of the present invention; not any pro forma restriction is done to the present invention; every above execution mode is done according to technical spirit of the present invention any simple modification, equivalent variations or modification, all still belong to the protection range of technical solution of the present invention.
Claims (12)
1. for a detection method for base stations detected reference clock, it is characterized in that, comprising:
Obtain multiple clock differences that all base stations to be detected are right, the multiple clock difference right according to each base station and each clock difference acquisition time obtain its clock difference rate of change;
The clock difference rate of change that more each base station is right and predetermined threshold value size, and output detections result.
2. detection method as claimed in claim 1, it is characterized in that, the step of the clock difference that all base stations to be detected of described acquisition are right comprises: obtain the clock difference that all communities are right; According to the incidence relation of community and base station, clock difference right for each community is converted to the clock difference right with the base station of each community centering two cell association.
3. detection method as claimed in claim 2, it is characterized in that, the step of the clock difference that all communities of described acquisition are right comprises: receiving package contains cell ID and timing parameter examining report thereof; The timing parameter of centering two community, each community is determined according to the incidence relation of cell number and cell ID and described examining report; The timing parameter of centering two community, each community is utilized to obtain the right clock difference in each community.
4. detection method as claimed in claim 3, is characterized in that, described timing parameter comprises each community and to be partially worth and/or code is worth partially at the frame in certain moment; Described clock difference is frame be partially worth and/or code be partially worth the difference of centering two community, described community in this moment.
5. the detection method as described in any one of Claims 1-4, it is characterized in that, when the number that base station to be detected is right is 1, described testing result comprises: if the right clock difference rate of change in this base station is less than described predetermined threshold value, deviation is not had between the reference clock of then this base station centering two base station, otherwise, between the reference clock of this base station centering two base station, there is deviation.
6. the detection method as described in any one of Claims 1-4, it is characterized in that, when the number that base station to be detected is right is greater than 1, described testing result comprises: if the right clock difference rate of change in all base stations comprising certain base station is all greater than/equals described predetermined threshold value, then the reference clock of this base station exists deviation.
7. for a checkout gear for base stations detected reference clock, it is characterized in that, comprising:
For obtaining the right multiple clock differences in all base stations to be detected, the multiple clock difference right according to each base station and each clock difference acquisition time obtain the computing module of its clock difference rate of change; And,
The clock difference rate of change right for more each base station and predetermined threshold value size, and the processing module of output detections result.
8. checkout gear as claimed in claim 7, it is characterized in that, described computing module comprises: for obtaining the acquisition module of the right clock difference in all communities; And for the incidence relation according to community and base station, clock difference right for each community is converted to the calculating sub module of the clock difference right with the base station of each community centering two cell association.
9. checkout gear as claimed in claim 8, it is characterized in that, described acquisition module contains cell ID and timing parameter examining report thereof specifically for receiving package, determine the timing parameter of centering two community, each community according to the incidence relation of cell number and cell ID and described examining report, utilize the timing parameter of centering two community, each community to obtain the right clock difference in each community.
10. checkout gear as claimed in claim 9, it is characterized in that, the timing parameter that described acquisition module gets comprises each community and to be partially worth and/or code is worth partially at the frame in certain moment, and described clock difference is frame be partially worth and/or code be partially worth the difference of centering two community, described community in this moment.
11. checkout gears as described in any one of claim 7 to 10, it is characterized in that, described processing module comprises the first process submodule, described first process submodule is when the number right when base station to be detected is 1, output detections result: if the right clock difference rate of change in this base station is less than described predetermined threshold value, deviation is not had between the reference clock of then this base station centering two base station, otherwise, there is deviation between the reference clock of this base station centering two base station.
12. checkout gears as described in any one of claim 7 to 10, it is characterized in that, described processing module comprises the second process submodule, described second process submodule is when the number right when base station to be detected is greater than 1, output detections result: if the right clock difference rate of change in all base stations comprising certain base station is all greater than/equals described predetermined threshold value, then the reference clock of this base station exists deviation.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105472725A (en) * | 2016-02-06 | 2016-04-06 | 北京佰才邦技术有限公司 | Base station synchronization method and device |
| CN105610534A (en) * | 2015-12-17 | 2016-05-25 | 北京无线电计量测试研究所 | Multi-station time synchronization method and equipment |
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