CN102083092B - Method and device for searching weakly covered cells in time division-synchronous code division multiple access (TD-SCDMA) network - Google Patents
Method and device for searching weakly covered cells in time division-synchronous code division multiple access (TD-SCDMA) network Download PDFInfo
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Abstract
The invention discloses a method and device for searching weakly covered cells in a time division-synchronous code division multiple access (TD-SCDMA) network. The method comprises the steps of: acquiring a switch success report and a switch failure report for recording each switch condition in the TD-SCDMA network; extracting all the records of occurred switches from the TD-SCDMA network to a GSM (Global System for Mobile Communication) network from the switch success report, and extracting a source cell identity in each record; extracting all the records of occurred switches from the TD-SCDMA to the GSM network from the switch failure report, and extracting the source cell identity in each record; sequencing all the extracted source cell identities according to a preset rule, and determining the cells corresponding to the source cell identities ranking the first Nth positions after the sequencing to be the weakly covered cells. The method and the device provided by the invention canbe used for accurately searching out the weakly covered cells in time and are beneficial to saving the cost.
Description
Technical field
The present invention relates to TD SDMA (TD-SCDMA, Time Division-SynchronousCode Division Multiple Access) technology, particularly lookup method and the device of the weak coverage cell in a kind of TD-SCDMA network.
Background technology
Along with the granting of Chinese 3-G (Generation Three mobile communication system) (3G, 3rd-generation) licence plate, at present, in a lot of cities, comprise most line cities and part tier 2 cities, built the TD-SCDMA network, professional so that TD-SCDMA to be provided.Correspondingly, the construction of new network has also brought a lot of new problems to operator, such as, how in the TD-SCDMA network, to find out weak coverage cell, in order to the RST of this residential quarter improved etc.
Ideally, hope can with traditional 2G network, directly apply in the TD-SCDMA network such as the weak coverage cell mode of searching in the global mobile communication network (GSM, Global System for Mobile Communications).
In traditional GSM network, can adopt the test (DT, Drive Test) of driving, dial quality test (CQT, Call Quality Test), or search weak coverage cell according to user's complaint etc.Wherein, Drive Test refers to that the tester drives to arrive test zone, then utilizes special instrument to test this regional signal coverage varies; After the CQT test refers to that the tester arrives test zone, by conversing with the tester, test this regional signal coverage varies.
But, all there is certain problem in actual applications in above-mentioned processing mode, such as: for this dual mode of testing to search weak coverage cell by Drive Test and CQT, owing to all needing the tester to arrive test zone, so need to expend very large manpower and materials, increase cost; And for some test zone, possible tester be difficult to arrive, and correspondingly, test job just can't be carried out, that is to say, if these zones are weak coverage cell, will search so less than; For the mode of searching weak coverage cell according to user's complaint because this mode is to solve after problem occurs again, processes not prompt enough, so can cause user's satisfaction decline.
As seen, all there is certain problem in the weak coverage cell mode of searching in the existing GSM network, is not the ideal scheme of dealing with problems.
Summary of the invention
In view of this, the invention provides the lookup method of weak coverage cell in a kind of time-division synchronous CDMA network, can find out timely and accurately weak coverage cell, and can save cost.
The present invention provides in a kind of time-division synchronous CDMA network the device of searching of weak coverage cell simultaneously, can find out timely and accurately weak coverage cell, and can save cost.
For achieving the above object, technical scheme of the present invention is achieved in that
The lookup method of weak coverage cell in a kind of time-division synchronous CDMA network, the method comprises:
A, obtain handover success report and handoff failure report for the each switch instances of record TD SDMA TD-SCDMA network;
B, from the report of described handover success, extract all records that switch from the TD-SCDMA network to global mobile communication network G SM that switch to that occur, and extract the cell-of-origin sign in every record;
C, from the report of described handoff failure, extract all records that switch from the TD-SCDMA network to the GSM network that switch to that occur, and extract the cell-of-origin sign in every record;
D, each cell-of-origin sign that extracts is sorted according to pre-defined rule, residential quarter corresponding to sign, cell-of-origin that is in top N after the ordering is defined as weak coverage cell; Described N is positive integer.
Preferably, described each the cell-of-origin sign that extracts is sorted according to pre-defined rule comprises:
, from many to few order each the cell-of-origin sign that extracts is sorted according to each cell-of-origin sign occurrence number.
Preferably, described all records that switch from the TD-SCDMA network to the GSM network that switch to that occur that extract comprise:
By cell-of-origin sign belonging network and purpose cell ID belonging network are analyzed, determine and extract all records that switch from the TD-SCDMA network to the GSM network that switch to that occur.
In a kind of time-division synchronous CDMA network weak coverage cell search device, this device comprises:
Acquiring unit is used for obtaining handover success report and handoff failure report for the each switch instances of record TD SDMA TD-SCDMA network;
Extraction unit is used for extracting all records that switch from the TD-SCDMA network to global mobile communication network G SM that switch to that occur from described handover success report, and extracts the cell-of-origin sign in every record; Simultaneously, from described handoff failure report, extract all records that switch from the TD-SCDMA network to the GSM network that switch to that occur, and extract the cell-of-origin sign in every record;
Search the unit, be used for each the cell-of-origin sign that extracts is sorted according to pre-defined rule, residential quarter corresponding to sign, cell-of-origin that is in top N after the ordering is defined as weak coverage cell; Described N is positive integer.
Preferably, comprise in the described extraction unit:
First extracts subelement, be used for from described handover success report and the report of described handoff failure, extracting all records that switch from the TD-SCDMA network to the GSM network that switch to that occur by cell-of-origin sign belonging network and purpose cell ID belonging network are analyzed;
Second extracts subelement, is used for extracting the cell-of-origin sign from every the record that extracts.
Preferably, the described unit of searching identifies occurrence number from many to few order according to each cell-of-origin, and each cell-of-origin sign that extracts is sorted.
As seen, adopt technical scheme of the present invention, by handover success report and handoff failure report are analyzed, obtain each self-recording all record that switch to the switching from the TD-SCDMA network to the GSM network that occur, and each cell-of-origin sign that extracts sorted according to pre-defined rule, residential quarter corresponding to sign, cell-of-origin that is in top N after the ordering is defined as weak coverage cell.Compared with prior art, scheme of the present invention need not the tester and arrives specially test zone, so saved manpower and materials, reduced cost, and, since can not relate to owing to survey crew can't arrive weak coverage cell that test zone causes search less than problem, so improved the accuracy rate of searching; Have, scheme of the present invention can be carried out as required at any time again, thereby in time finds weak coverage cell before customer complaint, has promoted user's satisfaction.
Description of drawings
Fig. 1 is the flow chart of the inventive method embodiment.
Fig. 2 is the composition structural representation of apparatus of the present invention embodiment.
Embodiment
For problems of the prior art, the lookup method of weak coverage cell in a kind of brand-new TD-SCDMA network is proposed among the present invention, not only weak coverage cell can be found out timely and accurately, and cost can be saved.
In traditional GSM network, terminal in voice call process, switches to weak coverage cell if cover normal residential quarter from signal in communication process, and then the voice call meeting call drop that switches causes the voice handoff failure.But, in the TD-SCDMA network, if covering normal residential quarter from signal, terminal carries out following three kinds of situations then further occuring after voice switch to weak coverage cell:
1) normal if the GSM network signal in the weak coverage cell region of TD-SCDMA network covers, then normal direct-cut operation is to the GSM network;
2) normal if the GSM network signal in the weak coverage cell region of TD-SCDMA network covers, but owing to reasons such as adjacent cell configuration errors, may in direct-cut operation, switch unsuccessfully;
3) if the GSM network signal coverage condition in the weak coverage cell region of TD-SCDMA network also is weak covering, then handoff failure.
Because the TD-SCDMA network also is in the networking initial stage, the aspect such as the network optimization and maturity is imperfection also, therefore weak overlay area can be many, and the each side of GSM network is fairly perfect, so weak coverage cell seldom, the probability of happening of the therefore, in above-mentioned three kinds of situations, the 3rd) planting situation is low-down.
And existing TD-SCDMA network can be recorded the interior each situation about switching of each terminal of self coverage usually automatically; be that every generation is once switched in the network; then correspondence generates a record; record the handover information of this switching; comprise the cell-of-origin sign (ID before switching; Identification), the purpose residential quarter ID after switching, and the reason that switches etc.Wherein, switch reasons before may being the described because cell signal of TD-SCDMA network a little less than, so switch to the GSM network, also may be because the position of terminal is moved etc.Usually, if certain switches final handover success, then handover information corresponding to this time switching will be recorded in the handover success report, if handoff failure, then corresponding handover information will be recorded in the handoff failure report.
So, in the present embodiment, can be by the handover information in the record in handover success report and the handoff failure report be analyzed, find out some the maximum residential quarters of behavior generation that switch from the TD-SCDMA network to the GSM network, these residential quarters are defined as weak coverage cell.
The specific implementation of scheme of the present invention comprises: at first, obtain handover success report and handoff failure report for the each switch instances of record TD-SCDMA network; Then, from the handover success report, extract all records that switch from the TD-SCDMA network to the GSM network that switch to that occur, and the cell-of-origin that extracts in every record identifies, from the handoff failure report, extract all records that switch from the TD-SCDMA network to the GSM network that switch to that occur, and extract the cell-of-origin sign in every record; At last, each the cell-of-origin sign that extracts is sorted according to pre-defined rule, residential quarter corresponding to sign, cell-of-origin that is in top N after the ordering is defined as weak coverage cell, N is positive integer.
Usually, identify occurrence number from how to sort to few order according to each cell-of-origin.Certainly, if adopt other sortord, also be fine, such as, according to situations such as network settings, for different residential quarters arranges different weights, then calculate by certain algorithm, sort according to result of calculation etc.Concrete what sort method that adopts can be decided according to the actual requirements, and is not restricted in the scheme of the present invention.
For making purpose of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
Fig. 1 is the flow chart of the inventive method embodiment.As shown in Figure 1, may further comprise the steps:
Step 101: obtain handover success report and handoff failure report for the each switch instances of record TD-SCDMA network.
If certain handover success, then the handover information of this time switching will be recorded in the handover success report, if certain handoff failure, then the handover information of this time switching will be recorded in the handoff failure report.The handover information of record comprises: switch the ID of the ID of front cell-of-origin, the purpose residential quarter after switching and switch reasons etc.
For different TD-SCDMA networks, according to the difference of its core network switches, physical record mode and the record position of described handover success report and handoff failure report may be different.Such as, be (the NSN of Nokia Siemens Communications Inc for core network switches, Nokia Siemens NetworkCompany) the TD-SCDMA network of equipment, wherein handover success report HO and handoff failure report FHO all are recorded in the PRFILE configuration of NSN equipment (also comprising out of Memory), by real-time network monitoring instrument (TNES, Traffica Network Element Servers) HO and FHO are extracted and store into assigned address, follow-up can HO and the FHO of storage the analysis.
How to obtain handover success report and handoff failure and be reported as known in this fieldly, repeat no more.
Step 102: from the handover success report, extract all records that switch from the TD-SCDMA network to the GSM network that switch to that occur, and extract the cell-of-origin sign in every record.
Step 103: from the handoff failure report, extract all records that switch from the TD-SCDMA network to the GSM network that switch to that occur, and extract the cell-of-origin sign in every record.
In the step 102 and 103, can analyze by cell-of-origin sign belonging network and purpose cell ID belonging network to every record, determine which is to relate to the record that switches from the TD-SCDMA network to the GSM network in all records in handover success report and the handoff failure report.
Step 104:, from many to few order each the cell-of-origin sign that extracts is sorted according to each cell-of-origin sign occurrence number, residential quarter corresponding to sign, cell-of-origin that is in top N after the ordering is defined as weak coverage cell; N is positive integer.
The concrete value of N can be decided according to the actual requirements.
Below by concrete example, the specific implementation of step 102～104 is described in further detail:
Suppose from the handover success report, to have extracted altogether 20 records (certainly, the physical record number should much larger than 20, only make things convenient for for follow-up statement herein), be numbered respectively record 1～record 20, extract respectively the cell-of-origin sign in these 20 records, as shown in Table 1:
| Record | The cell-of-origin sign |
| Record 1 | Cell-of-origin sign 1 |
| Record 2 | Cell-of-origin sign 3 |
| Record 3 | Cell-of-origin sign 2 |
| Record 4 | Cell-of-origin sign 5 |
| Record 5 | Cell-of-origin sign 7 |
| Record 6 | Cell-of-origin sign 4 |
| Record 7 | Cell-of-origin sign 6 |
| Record 8 | Cell-of-origin sign 3 |
| Record 9 | Cell-of-origin sign 8 |
| Record 10 | Cell-of-origin sign 4 |
| Record 11 | Cell-of-origin sign 4 |
| Record 12 | Cell-of-origin sign 1 |
| Record 13 | Cell-of-origin sign 2 |
| Record 14 | Cell-of-origin sign 9 |
| Record 15 | Cell-of-origin sign 4 |
| Record 16 | Cell-of-origin sign 6 |
| Record 17 | Cell-of-origin sign 3 |
| Record 18 | Cell-of-origin sign 3 |
| Record 19 | Cell-of-origin sign 4 |
| Record 20 | Cell-of-origin sign 2 |
The cell-of-origin sign that every record that table one extracts from the handover success report is corresponding
Can find out, relate to altogether 9 cell-of-origin signs, wherein, cell-of-origin sign 1 has occurred 2 times, and cell-of-origin sign 2 has occurred 3 times, and cell-of-origin sign 3 has occurred 4 times, cell-of-origin sign 4 has occurred 5 times, and cell-of-origin sign 6 has occurred 2 times, and cell-of-origin sign 5,7,8 and 9 has all respectively occurred 1 time.
Suppose from the handoff failure report, to extract altogether 10 records, be numbered respectively record 1～record 10, extract respectively the cell-of-origin sign in these 10 records, as shown in Table 2:
| Record | The cell-of-origin sign |
| Record 1 | Cell-of-origin sign 4 |
| Record 2 | Cell-of-origin sign 2 |
| Record 3 | Cell-of-origin sign 4 |
| Record 4 | Cell-of-origin sign 3 |
| Record 5 | Cell-of-origin sign 1 |
| Record 6 | Cell-of-origin sign 5 |
| Record 7 | Cell-of-origin sign 5 |
| Record 8 | Cell-of-origin sign 2 |
| Record 9 | Cell-of-origin sign 2 |
| Record 10 | Cell-of-origin sign 4 |
The cell-of-origin sign that every record that table two extracts from the handoff failure report is corresponding
As seen find out, cell-of-origin sign 1 has occurred 1 time, and cell-of-origin sign 2 has occurred 3 times, and cell-of-origin sign 3 has occurred 1 time, and cell-of-origin sign 4 has occurred 3 times, and cell-of-origin sign 5 has occurred 2 times, and cell-of-origin sign 6,7,8 and 9 does not all occur.
Each cell-of-origin is identified the number of times summation of twice appearance, and identifies occurrence number from how to sort to few order, as shown in Table 3 according to each cell-of-origin after the summation:
| The cell-of-origin sign | Occurrence number |
| Cell-of-origin sign 4 | 8 |
| Cell-of-origin sign 2 | 6 |
| Cell-of-origin sign 3 | 5 |
| Cell-of-origin sign 1 | 3 |
| Cell-of-origin sign 5 | 3 |
| Cell-of-origin sign 6 | 2 |
| Cell-of-origin sign 7 | 1 |
| Cell-of-origin sign 8 | 1 |
| Cell-of-origin sign 9 | 1 |
Each cell-of-origin sign occurrence number ordering of table three
In actual applications, because the number of times that cell-of-origin sign 4, cell-of-origin sign 2 and cell-of-origin sign 3 occur is many, therefore, these three residential quarters corresponding to sign can be defined as weak coverage cell.
Follow-up, can carry out relevant treatment to the weak coverage cell of determining as required, such as signal strength signal intensity of notifying the related personnel to strengthen this residential quarter etc.; In addition, also can further extract the purpose cell ID in the GSM network after switching corresponding to the weak coverage cell determined, thereby as required the GSM network is optimized etc.Since these contents all with scheme of the present invention without direct relation, therefore be not described.
Based on said method, Fig. 2 is the composition structural representation of apparatus of the present invention embodiment.As shown in Figure 2, comprising: acquiring unit 21, extraction unit 22 and search unit 23;
Acquiring unit 21 is used for obtaining handover success report and handoff failure report for the each switch instances of record TD-SCDMA network;
Wherein, can further comprise in the extraction unit 22:
First extracts subelement 221, be used for from handover success report and the report of described handoff failure, extracting all records that switch from the TD-SCDMA network to the GSM network that switch to that occur by cell-of-origin sign belonging network and purpose cell ID belonging network are analyzed;
Second extracts subelement 222, is used for extracting the cell-of-origin sign from every the record that extracts.
Specifically, searching unit 23 can according to each cell-of-origin sign occurrence number from many to few order, sort to each the cell-of-origin sign that extracts.
The specific works flow process of device shown in Figure 2 please refer to the respective description in the embodiment of the method shown in Figure 1, repeats no more herein.
In a word, adopt technical scheme of the present invention, by handover success report and handoff failure report are analyzed, obtain each self-recording all record that switch to the switching from the TD-SCDMA network to the GSM network that occur, and the cell-of-origin that extracts in every record identifies, each the cell-of-origin sign that extracts is sorted according to pre-defined rule, residential quarter corresponding to sign, cell-of-origin that is in top N after the ordering is defined as weak coverage cell.Compared with prior art, scheme of the present invention need not the tester and arrives specially test zone, so saved manpower and materials, reduced cost, and, since can not relate to owing to survey crew can't arrive weak coverage cell that test zone causes search less than problem, so improved the accuracy rate of searching; Have, scheme of the present invention can be carried out as required at any time again, thereby in time finds weak coverage cell before customer complaint, has promoted user's satisfaction.
In sum, above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. the lookup method of weak coverage cell in the time-division synchronous CDMA network is characterized in that, the method comprises:
A, obtain handover success report and handoff failure report for the each switch instances of record TD SDMA TD-SCDMA network;
B, from the report of described handover success, extract all records that switch from the TD-SCDMA network to global mobile communication network G SM that switch to that occur, and extract the cell-of-origin sign in every record;
C, from the report of described handoff failure, extract all records that switch from the TD-SCDMA network to the GSM network that switch to that occur, and extract the cell-of-origin sign in every record;
D, each cell-of-origin sign that extracts is sorted according to pre-defined rule, residential quarter corresponding to sign, cell-of-origin that is in top N after the ordering is defined as weak coverage cell; Described N is positive integer;
Wherein, described all records that switch from the TD-SCDMA network to the GSM network that switch to that occur that extract comprise:
By cell-of-origin sign belonging network and purpose cell ID belonging network are analyzed, determine and extract all records that switch from the TD-SCDMA network to the GSM network that switch to that occur.
2. method according to claim 1 is characterized in that, described each the cell-of-origin sign that extracts is sorted according to pre-defined rule comprises:
, from many to few order each the cell-of-origin sign that extracts is sorted according to each cell-of-origin sign occurrence number.
In the time-division synchronous CDMA network weak coverage cell search device, it is characterized in that, this device comprises:
Acquiring unit is used for obtaining handover success report and handoff failure report for the each switch instances of record TD SDMA TD-SCDMA network;
Extraction unit is used for extracting all records that switch from the TD-SCDMA network to global mobile communication network G SM that switch to that occur from described handover success report, and extracts the cell-of-origin sign in every record; Simultaneously, from described handoff failure report, extract all records that switch from the TD-SCDMA network to the GSM network that switch to that occur, and extract the cell-of-origin sign in every record;
Search the unit, be used for each the cell-of-origin sign that extracts is sorted according to pre-defined rule, residential quarter corresponding to sign, cell-of-origin that is in top N after the ordering is defined as weak coverage cell; Described N is positive integer;
Wherein, comprise in the described extraction unit:
First extracts subelement, be used for from described handover success report and the report of described handoff failure, extracting all records that switch from the TD-SCDMA network to the GSM network that switch to that occur by cell-of-origin sign belonging network and purpose cell ID belonging network are analyzed;
Second extracts subelement, is used for extracting the cell-of-origin sign from every the record that extracts.
4. device according to claim 3 is characterized in that, the described unit of searching identifies occurrence number from many to few order according to each cell-of-origin, and each cell-of-origin sign that extracts is sorted.
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| WO2014019199A1 (en) * | 2012-08-02 | 2014-02-06 | 华为技术有限公司 | Terminal, and processing method after access failure thereof |
| CN103945433B (en) * | 2013-01-21 | 2018-03-23 | 中国移动通信集团上海有限公司 | A kind of weak overlay area of network determines method and device |
| CN105228242B (en) * | 2014-05-26 | 2019-01-01 | 中国移动通信集团公司 | The localization method and device of weak overlay area |
| CN105517074B (en) * | 2015-12-07 | 2019-02-15 | 中国联合网络通信集团有限公司 | The localization method and device of cell switching problem |
| CN115696474B (en) * | 2021-07-22 | 2024-02-06 | 中国电信股份有限公司 | Transmission method of successful handover report and related equipment |
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| CN1402568A (en) * | 2001-08-16 | 2003-03-12 | 华为技术有限公司 | Frame offset allocation method |
| CN1764292A (en) * | 2004-10-19 | 2006-04-26 | 乐金电子(中国)研究开发中心有限公司 | Switching information management apparatus and method for mobile communication system |
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| CN1402568A (en) * | 2001-08-16 | 2003-03-12 | 华为技术有限公司 | Frame offset allocation method |
| CN1764292A (en) * | 2004-10-19 | 2006-04-26 | 乐金电子(中国)研究开发中心有限公司 | Switching information management apparatus and method for mobile communication system |
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