CN102595526A - Processing method for terminal neighbouring zone list and base station controller - Google Patents
Processing method for terminal neighbouring zone list and base station controller Download PDFInfo
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- CN102595526A CN102595526A CN2012100423350A CN201210042335A CN102595526A CN 102595526 A CN102595526 A CN 102595526A CN 2012100423350 A CN2012100423350 A CN 2012100423350A CN 201210042335 A CN201210042335 A CN 201210042335A CN 102595526 A CN102595526 A CN 102595526A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/00835—Determination of neighbour cell lists
Abstract
The invention provides a processing method for a terminal neighbouring zone list and a base station controller. The processing method for the terminal neighbouring zone list comprises the following steps: the base station controller (BSC) ranks the priorities of terminal neighbouring zones according to the stored historical switchover information of a terminal or the neighbouring zone information of a community; and the BSC selects the terminal neighbouring zones sequentially according to the priorities from high to low so as to generate the terminal neighbouring zone list. According to the processing method for the terminal neighbouring zone list and the base station controller, more reasonable information on neighbouring zone list for the terminal can be provided, thereby improving the rate of success of switchover, and call drop of the system is reduced.
Description
Technical field
The present invention relates to cell mobile communication systems, relate in particular to the processing method and the base station controller of a kind of terminal Neighboring Cell List.
Background technology
Code division multiple access (Code Division Multiple Access; Abbreviation CDMA) the interference system certainly of system reduces with interference frequently through soft hand-off; Whether the pilot strength information of sub-district, adjacent area is on every side measured and is reported at the terminal, adjudicated according to the pilot frequency information that reports by base station controller (Base Station Controller is called for short BSC) and will switch.
In handoff procedure, the terminal needs constantly to measure the quality of current sub-district of living in and adjacent area forward channel, and which adjacent area the terminal need be measured, is the Neighboring Cell List defined that issues through BSC.For BSC, need be Neighboring Cell List of each cell maintenance, to guarantee efficient in the terminal searching neighboring area signal intensity of this scope.For the terminal, also need safeguard a Neighboring Cell List: mobile phone is in idle condition, and BSC informs sub-district and the adjacent area situation thereof that mobile phone is current through the Overhead of control channel; Mobile phone is when Traffic Channel, and BSC notifies mobile phone current adjacent area situation through the adjacent area updating message of Traffic Channel.
CDMA EVDO air protocol regulation, the Neighboring Cell List of mobile phone can be supported 31.Because the wireless environment in city is complicated, the adjacent area is tending towards ever-increasing trend, especially under the scene of switching in many ways; The Neighboring Cell List at terminal is the adjacent area union of sets collection of Active Set sub-district, so adjacent-area list renewing will be referred to the consolidation problem of adjacent area, the adjacent area number that merges according to configuration possibly substantially exceed eats dishes without rice or wine to support maximum number; So just need cast out some adjacent areas; Present most way only is to judge according to certain strategy, decides its priority like the occurrence number according to the adjacent area, but these methods are to rely on static configuration to decide; Often the scene with reality has deviation, strong pilot search can take place less than the situation that causes call drop.
Described a kind of algorithm that the adjacent area merges in the European patent EP 1487230, taken all factors into consideration height two factors of occurrence frequency of intensity and the adjacent area of pilot tone in the Active Set, obtained the weight of an adjacent area, decided Neighboring Cell List according to this weight; Two factors of this algorithm: a. pilot frequency intensity is big more, if this moment the terminal near which sub-district, think that the priority of adjacent domain of this sub-district is than higher; B. occurrence frequency is high more, explains that this adjacent area is public adjacent area, and priority ratio is higher; These two factors improve the accuracy of adjacent area to a certain extent, but on the other hand, not high for condition a accuracy, can't simply come judges with the direction that moves through active user's position; For condition b, the correctness of the BSC side that places one's entire reliance upon sub-district neighbor cell configuration has certain limitation.
Summary of the invention
The embodiment of the invention provides the processing method and the base station controller of a kind of terminal Neighboring Cell List, is the Neighboring Cell List and real scene problem devious that the terminal provides to overcome existing BSC.
The embodiment of the invention provides the processing method of a kind of terminal Neighboring Cell List, and this method comprises:
Base station controller (BSC) sorts according to the neighboring BS information of the historical handover information at the terminal of preserving or the sub-district priority to the adjacent area, terminal;
Said BSC according to priority from high to low order accepts or rejects the back to adjacent area, said terminal and generates said terminal Neighboring Cell List.
Preferably, said BSC sorts to the priority of adjacent area, terminal according to the historical handover information of preserving and comprises:
Said BSC finds the history similar with current Active Set and switches record set from historical handover information, add up the number of times that switching adds the sub-district respectively according to the said historical record set that switches, and the priority that the switching that historical switching times is more adds the sub-district is high more.
Preferably, said BSC finds the history similar with current Active Set and switches record set from historical handover information, comprising:
Find the history that comprises same cells with current Active Set in the Active Set of said BSC from historical handover information and switch record set, from the history that comprises same cells switch find the record set with current Active Set in the history of pilot frequency intensity difference in predetermined threshold of respective cell switch record set.
Preferably, before said BSC sorted to the priority of adjacent area, terminal according to the historical handover information of preserving, said method also comprised:
Said BSC record is also preserved said historical handover information.
Preferably, said BSC sorts to the priority of adjacent area, terminal according to the neighboring BS information of the sub-district of preserving and comprises:
Said BSC obtains the adjacent area list information of sub-district in the Active Set after the current switching, adds up the number of times that the common adjacent area of sub-district occurs in the said Active Set, and the priority of the said common adjacent area that number of times is more is high more.
The embodiment of the invention provides a kind of base station controller (BSC), and this BSC comprises:
Order module is used for sorting according to the neighboring BS information of the historical handover information at the terminal of preserving or the sub-district priority to the adjacent area, terminal;
Generation module is used for according to priority from high to low order and the back is accepted or rejected in adjacent area, said terminal generates said terminal Neighboring Cell List.
Preferably; Said order module; Specifically be used for: find the history similar with current Active Set from historical handover information and switch record set, add up the number of times that switching adds the sub-district respectively according to the said historical record set that switches, the priority that the switching that historical switching times is more adds the sub-district is high more.
Preferably; Said order module; Specifically be used for: from the Active Set of historical handover information, find the history that comprises same cells with current Active Set and switch record set, from the history that comprises same cells switch find the record set with current Active Set in the history of pilot frequency intensity difference in predetermined threshold of respective cell switch record set.
Preferably, said BSC also comprises: preserve module, be used to preserve said historical handover information.
Preferably, said order module specifically is used for: obtain the adjacent area list information of the Active Set sub-district after the current switching, add up the number of times that the common adjacent area of sub-district occurs in the said Active Set, the priority of the said common adjacent area that number of times is more is high more.
The processing method and the base station controller of above-mentioned terminal Neighboring Cell List can provide more reasonably adjacent area list information for the terminal, thereby improve handover success rate, reduce system's call drop.
Description of drawings
Fig. 1 is the flow chart of the processing method embodiment of Neighboring Cell List of the present invention;
Fig. 2 is the structural representation of BSC embodiment of the present invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, hereinafter will combine accompanying drawing that embodiments of the invention are elaborated.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
The embodiment of the invention provides the processing method of a kind of terminal Neighboring Cell List, and this method comprises:
This step, historical handover information was collected by the data center of BSC for optional step, with the basic data of component analysis: take place once to switch, write down following information:
(1) former Active Set cell information comprises cell ID AS
i, pilot frequency intensity P
i
(2) switching adds cell information, comprises cell ID C_Add
i
(3) handover success or failure;
Through this step, suppose once to switch to add, former Active Set cell i d is 300,301, and switching the sub-district that adds is 302,303,304, and the record data that then collect are as shown in table 1:
Table 1 once switch add the back data recorded
Wherein, Said BSC sorts to the priority of adjacent area, terminal according to the historical handover information of preserving and comprises: said BSC finds the history similar with current Active Set and switches record set from historical handover information; Add up the number of times that switching adds the sub-district respectively according to the said historical record set that switches, the priority that the switching that historical switching times is more adds the sub-district is high more.
Particularly, BSC claims based on certain condition judgment whether the Active Set of twice switching is similar, if the Active Set [AS of twice switching
1i, P
1i], [AS
2i, P
2i] 0＜i＜=6 meet the following conditions:
The sub-district that the Active Set of (1) twice switching comprises is just the same, i.e. AS
1i=AS
2i(0＜i＜=6)
(2) switch the pilot frequency intensity difference P of same cells in the Active Set for twice
1i-P
2i＜d (d is a set point), implication is that the intensity of this sub-district in twice switching is close to a certain extent.
Judge that then two Active Sets are similar.
The Active Set sub-district of supposing this switching is { AS
1, AS
2... AS
i, wherein the adjacent area of these sub-districts is respectively nb
Ij(j is the adjacent area number of this cell configuration):
AS
1Neighboring Cell List={ the nb of configuration
11, nb
12..., nb
1j}
AS
2Neighboring Cell List={ the nb of configuration
21, nb
12..., nb
1j}
……
AS
iNeighboring Cell List={ the nb of configuration
I1, nb
I2..., nb
Ij}
Suppose that NB is the union of above-mentioned tabulation: NB={nb
1, nb
2..., nb
k}
This BSC switches record set from data center's match query to the history similar with current Active Set, calculates nb
kThe number of times of the sub-district that adds as switching is added up and is P
k, meaning is that the probability that it moves toward this adjacent area is judged according to data in the terminal that is under this scene, the weight that bigger then this adjacent area of its value is endowed is big more; This step is to assist according to the statistics of existing network to optimize hand-set adjacent-area list.
Wherein, Said BSC sorts to the priority of adjacent area, terminal according to the neighboring BS information of the sub-district of preserving and also comprises: said BSC obtains the adjacent area list information of sub-district in the Active Set after the current switching; Add up the number of times that the common adjacent area of sub-district occurs in the said Active Set, the priority of the said common adjacent area that number of times is more is high more.
Particularly, each sub-district in the new Active Set is obtained the Neighboring Cell List configuration respectively, and get adjacent area union NB={ [nb
1, C
1], [nb
2, C
2] ..., [nb
k, C
k], wherein, nb
iBe the common adjacent area of sub-district in the Active Set, C
kBe nb
kThe number of times that occurs is for example supposed AS
1And AS
2All disposed nb
1Be the adjacent area, so C
1The common adjacent area nb of sub-district in=2 expression Active Sets
1The number of times that occurs is 2 times;
Adjacent area nb among the adjacent area set N
kGive weight according to following condition:
For C
kBig more adjacent area weight is big more, and its implication is the common adjacent area of this adjacent area as the Active Set sub-district, and the probability that AT switches toward this sub-district is also bigger.
Preceding 31 of above-mentioned BSC from high to low order intercepting according to priority sends to the Neighboring Cell List at terminal as this; Said BSC sends said Neighboring Cell List to the terminal.Can more reasonably Neighboring Cell List be provided to the terminal through this method, improve handover success rate, reduce call drop.
As shown in Figure 2, be the structural representation of BSC embodiment of the present invention, this BSC comprises order module 21 and generation module 22, wherein:
Order module is used for sorting according to the neighboring BS information of the historical handover information at the terminal of preserving or the sub-district priority to the adjacent area, terminal;
Generation module is used for according to priority from high to low order and the back is accepted or rejected in adjacent area, said terminal generates said terminal Neighboring Cell List.
Wherein, Said order module; Specifically be used for: find the history similar with current Active Set from historical handover information and switch record set, add up the number of times that switching adds the sub-district respectively according to the said historical record set that switches, the priority that the switching that historical switching times is more adds the sub-district is high more; Perhaps, obtain the adjacent area list information of sub-district in the Active Set after the current switching, add up the number of times that the common adjacent area of sub-district occurs in the said Active Set, the priority of the said common adjacent area that number of times is more is high more.
In addition; Said generation module finds the historical Active Set similar with current Active Set from historical handover information; Specifically be used for: from the Active Set of historical handover information, find the history that comprises same cells with current Active Set and switch record set, from the history that comprises same cells switch find the record set with current Active Set in the history of pilot frequency intensity difference in predetermined threshold of respective cell switch record set.
Further, said BSC also comprises: preserve module 23, be used to preserve said historical handover information.
This BSC can provide more reasonably Neighboring Cell List to the terminal, improves handover success rate, reduces call drop, and concrete implementation procedure can repeat no more referring to Fig. 1 here.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said procedure can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize.Correspondingly, each the module/unit in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, only with reference to preferred embodiment the present invention is specified.Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spirit and the scope of technical scheme of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. the processing method of a terminal Neighboring Cell List is characterized in that, this method comprises:
Base station controller (BSC) sorts according to the neighboring BS information of the historical handover information at the terminal of preserving or the sub-district priority to the adjacent area, terminal;
Said BSC according to priority from high to low order accepts or rejects the back to adjacent area, said terminal and generates said terminal Neighboring Cell List.
2. method according to claim 1 is characterized in that:
Said BSC sorts to the priority of adjacent area, terminal according to the historical handover information of preserving and comprises:
Said BSC finds the history similar with current Active Set and switches record set from historical handover information, add up the number of times that switching adds the sub-district respectively according to the said historical record set that switches, and the priority that the switching that historical switching times is more adds the sub-district is high more.
3. method according to claim 2 is characterized in that:
Said BSC finds the history similar with current Active Set and switches record set from historical handover information, comprising:
Find the history that comprises same cells with current Active Set in the Active Set of said BSC from historical handover information and switch record set, from the history that comprises same cells switch find the record set with current Active Set in the history of pilot frequency intensity difference in predetermined threshold of respective cell switch record set.
4. according to the described method of the arbitrary claim of claim 1-3, it is characterized in that:
Before said BSC sorted to the priority of adjacent area, terminal according to the historical handover information of preserving, said method also comprised:
Said BSC record is also preserved said historical handover information.
5. method according to claim 1 is characterized in that:
Said BSC sorts to the priority of adjacent area, terminal according to the neighboring BS information of the sub-district of preserving and comprises:
Said BSC obtains the adjacent area list information of sub-district in the Active Set after the current switching, adds up the number of times that the common adjacent area of sub-district occurs in the said Active Set, and the priority of the said common adjacent area that number of times is more is high more.
6. a base station controller (BSC) is characterized in that, this BSC comprises:
Order module is used for sorting according to the neighboring BS information of the historical handover information at the terminal of preserving or the sub-district priority to the adjacent area, terminal;
Generation module is used for according to priority from high to low order and the back is accepted or rejected in adjacent area, said terminal generates said terminal Neighboring Cell List.
7. BSC according to claim 6 is characterized in that:
Said order module; Specifically be used for: find the history similar from historical handover information and switch record set with current Active Set; Add up the number of times that switching adds the sub-district respectively according to the said historical record set that switches, the priority that the switching that historical switching times is more adds the sub-district is high more.
8. BSC according to claim 7 is characterized in that:
Said order module; Specifically be used for: from the Active Set of historical handover information, find the history that comprises same cells with current Active Set and switch record set, from the history that comprises same cells switch find the record set with current Active Set in the history of pilot frequency intensity difference in predetermined threshold of respective cell switch record set.
9. according to the described BSC of the arbitrary claim of claim 6-8, it is characterized in that said BSC also comprises:
Preserve module, be used to preserve said historical handover information.
10. BSC according to claim 6 is characterized in that:
Said order module specifically is used for: obtain the adjacent area list information of the Active Set sub-district after the current switching, add up the number of times that the common adjacent area of sub-district occurs in the said Active Set, the priority of the said common adjacent area that number of times is more is high more.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210042335.0A CN102595526B (en) | 2012-02-23 | 2012-02-23 | The processing method and base station controller of terminal Neighboring Cell List |
| PCT/CN2012/077422 WO2013123748A1 (en) | 2012-02-23 | 2012-06-25 | Method for processing terminal neighbour cell list and base station controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210042335.0A CN102595526B (en) | 2012-02-23 | 2012-02-23 | The processing method and base station controller of terminal Neighboring Cell List |
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| CN102595526B CN102595526B (en) | 2017-12-12 |
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Cited By (7)
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| CN103220683A (en) * | 2013-03-29 | 2013-07-24 | 大唐移动通信设备有限公司 | Method and device for setting frequency points |
| CN104244346A (en) * | 2014-09-04 | 2014-12-24 | 京信通信系统（中国）有限公司 | Method and device for determining switched target cells |
| CN105792262A (en) * | 2014-12-18 | 2016-07-20 | 深圳市中兴微电子技术有限公司 | Active set maintenance method and terminal |
| CN106162666A (en) * | 2015-04-03 | 2016-11-23 | 中国移动通信集团公司 | A kind of configuring method for neighboring area and device |
| CN106332136A (en) * | 2016-08-24 | 2017-01-11 | 上海华为技术有限公司 | Data processing method and wireless network controller |
| CN106658519A (en) * | 2016-11-11 | 2017-05-10 | 中国移动通信集团江苏有限公司 | Method of reducing SRVCC switching time delay |
| CN111050365A (en) * | 2019-11-27 | 2020-04-21 | 京信通信系统（中国）有限公司 | Terminal measuring method, device, computer equipment and storage medium |
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| CN103220683A (en) * | 2013-03-29 | 2013-07-24 | 大唐移动通信设备有限公司 | Method and device for setting frequency points |
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| CN104244346A (en) * | 2014-09-04 | 2014-12-24 | 京信通信系统（中国）有限公司 | Method and device for determining switched target cells |
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| CN106162666A (en) * | 2015-04-03 | 2016-11-23 | 中国移动通信集团公司 | A kind of configuring method for neighboring area and device |
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| CN111050365A (en) * | 2019-11-27 | 2020-04-21 | 京信通信系统（中国）有限公司 | Terminal measuring method, device, computer equipment and storage medium |
| CN111050365B (en) * | 2019-11-27 | 2022-03-25 | 京信网络系统股份有限公司 | Terminal measuring method, device, computer equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102595526B (en) | 2017-12-12 |
| WO2013123748A1 (en) | 2013-08-29 |
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Effective date of registration: 20171114 Address after: 224000, Jiangsu Province, Yancheng City province salt District long salt Street office building, room 1607 (D) Applicant after: Yancheng Zhong Yong Investment & Development Co., Ltd. Address before: 518057 Nanshan District Guangdong high tech Industrial Park, South Road, science and technology, ZTE building, Ministry of Justice Applicant before: ZTE Corporation |
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