CN1592176B

CN1592176B - Method for improving boundary paging success rate in mobile communication system

Info

Publication number: CN1592176B
Application number: CN031563937A
Authority: CN
Inventors: 杨亚军; 陈亚勇; 陈勇健; 戚浩峰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2003-09-05
Filing date: 2003-09-05
Publication date: 2010-04-07
Anticipated expiration: 2023-09-05
Also published as: CN1592176A

Abstract

This invention relates to a method for increasing success rate of boundary zone beep in a mobile communication system including: adding spread LAC data configuration associated with real LAC at the MSC side, flexibly defining the local area information contained in the spread LAC according to the actual boundary zone at the BSC side, MSC and BSC process beep information based on the configurationafter adding the spread LAC. The process includes: MSC judges if the LAC carried in the bp request information has the spread LAC information according to the configuration beforE sending bp information, if not, MSC transfers the LAC information to BSC corresponding to LAC directly, if so, MSC transfers the spread LAC information to associated BSC which sends, the bp information based on defined LAC sphere, if the spread LAC is true, it delivers it in terms the physical area, if it's virtual, it sends it based on defined logic area.

Description

Improve the method for borderline region paging success rate in the mobile communication system

Technical field

The present invention relates to mobile communication technology, relate to a kind of particularly method of borderline region paging success rate of paging success rate that improves or rather.Can be applicable in the system algorithm realization and the network optimization of code division multiple access (CDMA).

Background technology

Borderline region in the CDMA mobile communication system can be divided into three kinds: first kind is the border between base station controller (BSC) the inner diverse location district (LAC), second kind is the border between the inner different base station controller of mobile switching centre (MSC) (BSC), and the third is the border between the different mobile switching centres (MSC).The technology of the present invention is to propose at the paging success rate problem that solves preceding two kinds of borderline regions.

In the mobile communications network that adopts the CDMA standard, there are two subject matters in its borderline region: location registers is frequent; The paging success rate of borderline region is low.

In CDMA mobile communication system, there are two the different notions in registration area and lane place (LAC).The registration area is a zone of the own position of mobile station identification, when travelling carriage when a registration area moves to the another one registration area, according to the parameter setting relevant, may initiate registration with registration, also may not can initiate to register.And lane place (LAC) when being mobile switching centre (MSC) mobile paging station, during the distributing paging request message with a sign.When this sign is registered in certain registration area with travelling carriage, corresponding with the sub-district that the initiation at travelling carriage place is registered.

Generally speaking, lane place (LAC) comprises a plurality of sub-districts, and the zone of lane place (LAC) is consistent with the registration area.For make mobile switching centre (MSC) can paging to travelling carriage, need travelling carriage when another registration area is transferred in a registration area, registration is in time carried out the position and is upgraded.If in time registration is not carried out the position and upgraded, still according to pairing lane place, the sub-district of registering before the paging (LAC) distributing paging, the phenomenon of paging less than travelling carriage will appear so during mobile switching centre (MSC) paging.Yet frequent position is upgraded, and not only can make the travelling carriage stand-by time shorten (shortening stand-by time thereby frequent registration increases the travelling carriage power consumption), and influences the capacity (frequently take access channel, influence channel capacity) of access channel.

Owing in the cdma mobile communication network, have above three kinds of borderline regions inevitably, the travelling carriage that therefore is under the mobile status certainly exists frequent location registers and low these two problems of border paging success rate.

The solution that adopts is to carry out the whole network paging by mobile switching centre (MSC) at present.It realizes that principle is: mobile switching centre (MSC) takes certain paging policy, when first time paging, pairing lane place, sub-district (LAC) issuing page message during by registration recently, if do not meet with a response within the predetermined time, then when second time paging, by whole net paging, i.e. all base station controllers (BSC) issuing page message of under mobile switching centre (MSC), hanging.

The advantage of this solution is: strategy is simple, because only relate to mobile switching centre (MSC), thereby revises simple.But its shortcoming is: owing to wherein adopted the whole network paging, impacted all and hung over base station controllers (BSC) of mobile switching centre (MSC) down, because of paging pressure is big, the as easy as rolling off a log system overload that causes causes the stability and the reliability variation of whole system.

Summary of the invention

The objective of the invention is to design the method that improves the borderline region paging success rate in a kind of mobile communication system, abandon the whole network paging scheme, solve the paging success rate problem of Different L AC borderline region in interior different B SC borderline region of MSC and the BSC, to reduce paging pressure.

The technical scheme that realizes the object of the invention is such: improve the method for borderline region paging success rate in a kind of mobile communication system, it is characterized in that comprising:

A. mobile switching centre's side increases the expansion LAC data configuration that is associated with true LAC in advance, and this expansion LAC is real LAC or imaginary LAC; The cell information that base station controller comprises according to the pre-defined expansion of the borderline region of reality LAC, base station controller is corresponding with real LAC with the cell information that in fact comprises, and is corresponding with the LAC that fabricates with the cell information that comprises in logic; The expansion LAC of mobile switching centre's side is corresponding with the expansion LAC of each base station controller of hanging down;

B. mobile switching centre and base station controller are pressed the configuration process paging request message after LAC is expanded in increase, comprising:

A. before the LAC distributing paging request message of mobile switching centre's sub-district, place correspondence when registering recently, judge according to the data configuration in the steps A whether this LAC disposes expansion LAC information by travelling carriage;

When b. not having expansion LAC information, mobile switching centre directly passes to down LAC information the base station controller of hanging corresponding with this LAC;

When having expansion LAC information, mobile switching centre obtains and expansion LAC associated base station controller according to the data configuration in the steps A, and expansion LAC information is passed to related base station controller;

C. base station controller obtains the LAC information and expansion LAC information from mobile switching centre, defines the LAC scope issuing page message of being resolved set by step among the A, comprising: to real LAC, by its pairing real cell scope issuing page message; To the LAC of expansion, when expansion LAC is true LAC, press the cell range issuing page message on the existing physical significance of side of base station controller; When expansion LAC is when fabricating LAC, the cell range issuing page message that comprises in logic by the predefined expansion of side of base station controller LAC.

The technical scheme that realizes the object of the invention can also be such: improve the method for borderline region paging success rate in a kind of mobile communication system, it is characterized in that comprising:

A1. the cell information that comprises according to the pre-defined expansion of real borderline region LAC of base station controller, this expansion LAC is real LAC or imaginary LAC, base station controller is corresponding with real LAC with the cell information that in fact comprises, and is corresponding with the LAC that fabricates with the cell information that comprises in logic;

B 1. base station controllers are pressed the configuration process beep-page message behind the increase expansion LAC, comprising:

A1. base station controller receives from LAC information entrained in mobile switching centre's paging request message, the LAC issuing page message of sub-district, place correspondence when registering recently by travelling carriage judges according to the data configuration in the steps A 1 whether this LAC disposes expansion LAC information;

When b1. not having expansion LAC information, base station controller is directly by the pairing real cell scope of true LAC issuing page message;

When c1. having expansion LAC information, define the logic district scope issuing page message of the expansion LAC that is resolved set by step among the A1.

Of the present inventionly being used for the method that CDMA mobile communication system improves the borderline region paging success rate, is a kind of method of the raising paging success rate of realizing based on extended position area (LAC).Two kinds of implementations can be arranged: a kind of is to improve the method for paging success rate what MSC side and BSC side realized based on expansion LAC, increase expansion LAC in the MSC side, make and carry expansion LAC in the paging request message, define in BSC simultaneously and the corresponding true LAC of these expansion LAC, aforesaid way is suitable for using (a plurality of BSC can adopt the equipment of identical or different producer) when the BSC of extension adopts same producer equipment down at MSC and its.Another kind is only to improve paging success rate in the BSC side by expansion LAC, and the notion that is about to expand LAC is all moved to the BSC side, is suitable for not using when the BSC of extension does not adopt same producer equipment down with it at MSC.

This dual mode is with respect to the whole network paging method, because a paging associated region, thereby paging pressure is little, system loading is also little, helps keeping the stability and the reliability of system.

The inventive method realizes that the characteristics of paging expansion comprise: owing to meet the A interface standard, so the handling process of MSC side is constant; MSC side and BSC side are set up expansion LAC tables of data, and configuration and maintenance are simple, and expansion LAC can freely define according to real network; Solve frequent registration and the low problem of call successful rate between interior different B SC border of MSC and the inner Different L AC of the BSC border, improved the paging success rate of these two kinds of borderline regions; Not only support the flexible networking of the MSC of distinct device producer, BSC equipment, and the problem on two kinds of related borders can solve with these equipment networks the time, paging success rate improved.

Description of drawings

Fig. 1 is behind MSC and BSC increase expansion LAC, paging processing procedure block diagram;

Fig. 2 is that a kind of cooperation between the inner Different L AC of BSC realizes schematic diagram;

Fig. 3 is that the another kind between the inner Different L AC of BSC cooperates the realization schematic diagram;

Fig. 4 is that the cooperation between the BSC realizes schematic diagram;

Fig. 5 is the networking structure schematic diagram of different manufacturers BSC equipment room.

Embodiment

Describe principle and the system schema thereof that improves the borderline region paging success rate based on expansion LAC in detail below in conjunction with accompanying drawing.

For MSC, can adopt dual mode to send paging request message for each user: a kind of is to carry lane place (LAC) information in paging request message; Another is to carry cell list information in paging request message.MSC is general to adopt first kind of mode to send paging request message for each user.

Under first kind of mode, owing to can carry a plurality of location area information (agreement regulation can not above 10) in the paging request message, thereby can increase extended position area (expansion LAC) by MSC and realize carrying in the paging request message a plurality of lane place (LAC), the definition practical object information corresponding in BSC simultaneously with these extended position areas (LAC).

The notion that the present invention expands LAC is: for the expansion LAC of MSC side, MSC need support and provide the expansion LAC data configuration that is associated with true LAC, and the number of MSC side expansion LAC can be more than one.The BSC side also need define corresponding expansion LAC, and is corresponding with the expansion LAC of MSC side.The expansion LAC of MSC side can issue a plurality of BSC, and BSC can define the cell information that this expansion LAC comprises according to the borderline region of reality.This expansion LAC can be real LAC, also can be the LAC that fabricates.When being real LAC, then the BSC side has the cell information on the corresponding physical meaning; When being the LAC that fabricates, it and the relation of the sub-district that comprised comprising in logic just, with the pairing actual LAC in these sub-districts physically comprise the meaning difference.Each BSC can be different to the definition of this expansion LAC, depend on the actual conditions of each BSC fully, freely define in the BSC side.

The realization of MSC side expansion LAC association can increase corresponding row, the BSC characteristic that characterizes expansion LAC and number thereof and be associated with it in the existing location cell table of MSC side.In order to realize conveniently also can increasing two tables of data newly, the BSC table that is associated with expansion LAC of the expansion LAC numerical table of the true LAC of its structural representation such as following table 1 and following table 2:

True LAC title	Expansion LACx title	Expansion LACx title	…	Expansion LACx title
True LAC title	Expansion LACx title	Expansion LACx title	…	Expansion LACx title	LACx	LAC1	LAC2	…	LACi

Table 1

In the last table 1, being assumed to be LACx with a real LAC is example, can dispose 0～i expansion LAC to it, is respectively LAC1, LAC2 ..., LACi.Wherein the size of i is no more than 10 of agreement regulation, actual disposition as required, and operated by rotary motion i equals 5.

Expansion LAC title	BSC1	BSC2	…	BSCn
Expansion LAC title	BSC1	BSC2	…	BSCn	LAC1	BSC1
LAC2		BSC2			LAC1	BSC1
LAC2		BSC2			…		…
LACi	BSC1	BSC2		BSCn	…		…

Table 2

In the last table 2, corresponding to different expansion LAC:LAC1, LAC2 ..., LACi, the BSC that they and MSC hang down has an incidence relation respectively.By this incidence relation, can know when MSC carries the request of expansion LAC distributing paging, need send paging request message to the BSC that is associated with this expansion LAC.When expansion LAC also was real LAC, it can only be associated with the BSC that it belonged to.As above in the table 2, suppose that LAC1 is real LAC, and it belongs to BSC1, then LAC1 just can only be associated with BSC1.When expansion LAC was the LAC that fabricates, it can be associated with one or more BSC, and this expansion LAC is different in the definition of each BSC.The as above LACi in the table 2, it is associated with BSC1, BSC2 and BSCn, can define LACi in these three BSC according to the situation of reality, and the logic scope of this expansion LAC is set.

Behind MSC and BSC increase expansion LAC, the paging processing procedure 1 is described as follows in conjunction with the accompanying drawings:

Step 11, MSC side are preserved the nearest register information of travelling carriage, the sub-district at place when comprising the travelling carriage registration in the register information, and the LAC at this place, sub-district etc., MSC is by this register information distributing paging request message;

Step 12, MSC can be to carry cell list distributing paging request message, also can be to carry the mode distributing paging request message of LAC.When MSC when carrying the mode distributing paging request message of LAC, need earlier whether the entrained LAC of inquiry have expansion LAC, what expansion LAC are arranged, i.e. inquiry is table 1 upward;

Step 13 after inquiring about table 1, if there is not expansion LAC in the LAC that carries, then directly passes to this LAC corresponding BSC, the existing and actual corresponding district information of this LAC among the BSC of this moment;

Step 14, after inquiring about table 1, if there is expansion LAC in the LAC that carries, then continue to go up table 2 by inquiry, determine which BSC to send the paging request to, like this by last table 2, to expand LAC and pass to BSC associated therewith, expansion LAC can be real LAC or imaginary LAC, when being real LAC, existing and the actual corresponding district information of this LAC among the BSC, when being the LAC that fabricates, the relation of it and the minizone that comprised be on the logical meaning comprise rather than physical significance on comprise;

Step 15, after BSC obtains the LAC (comprising true LAC and expansion LAC) that transmits by MSC, the LAC scope issuing page message of being resolved by the BSC side; If real LAC, then the BSC side is by the pairing actual range issuing page message of this true LAC; If expansion LAC is the LAC that fabricates, then press the logic scope issuing page message of BSC side definition.

Further specify MSC of the present invention and how BSC expands LAC below in conjunction with accompanying drawing 2 to 4.

Referring to Fig. 2, under the BSC that MSC hangs down a plurality of LAC are arranged, comprise LAC1, LAC2 and LAC3, their scope among the figure with zone that solid line defined.Wherein expanding LAC is LAC4, is an imaginary LAC, and scope corresponding in Fig. 1 is the zone that the with dashed lines circle is defined.Needing in the real network makes rational planning for according to the situation of borderline region earlier expands LAC, carries out corresponding data configuration in MSC side and BSC side then.

Dispose the data that are associated with expansion LAC4 in the MSC side; Also dispose and expand the data that LAC4 is associated in the BSC side, the definition expansion pairing cell information of LAC4 (LAC1, LAC2, LAC3).Definition for expansion LAC4 can freely define as required in the BSC side, and as defined expansion LAC4 among Fig. 1, it is comprising on a kind of logical meaning with its pairing sub-district.

When MSC according to the LAC1 of the nearest registration location one of mobile subscriber at BSC, certain sub-district of LAC2 and LAC3 juncture area, during as certain sub-district distributing paging under the LAC3, according to different paging policies, can be earlier at the LAC3 of BSC distributing paging, if paging is response not, then again to the expansion LAC4 of BSC distributing paging; Perhaps directly to the expansion LAC4 of BSC distributing paging.

Referring to Fig. 3, under the BSC that MSC hangs down a plurality of LAC are arranged, comprise LAC1, LAC2 and LAC3, their scope among the figure with zone that solid line defined.Wherein expanding LAC is LAC4, is an imaginary LAC, and scope corresponding in Fig. 3 is the zone that the with dashed lines shade is defined.Needing in the real network makes rational planning for according to the situation of borderline region earlier expands LAC, carries out corresponding data configuration in MSC side and BSC side then.

Dispose the data that are associated with expansion LAC4 in the MSC side; Also dispose and expand the data that LAC4 is associated in the BSC side, the pairing cell information of definition expansion LAC4.Definition for expansion LAC4 can freely define as required in the BSC side, and as defined expansion LAC4 among Fig. 2, it is comprising on a kind of logical meaning with its pairing sub-district.

When the MSC registration location nearest-at the LAC1 of BSC according to the mobile subscriber, certain sub-district of LAC2 and LAC3 juncture area, during as certain sub-district distributing paging under the LAC3, according to different paging policies, can be earlier at the LAC3 of BSC distributing paging, if paging is response not, then again to the regional distributing paging of the common composition of the LAC3 and expansion LAC4 institute of BSC.

The LAC that BSC passes over according to MSC again is issued to corresponding sub-district with beep-page message.When what pass over is that then BSC need inquire about its pairing tables of data, determines its paging object, and then issuing page message when expanding LAC.Like this, by safeguarding the pairing tables of data of identical expansion LAC at MSC with the BSC side, realize the transmission of expansion LAC at the A interface, the pairing true paging range of expansion LAC is existing at the BSC lateral body.

Fig. 2, the paging that has solved the expansion LAC on the inner Different L AC of BSC border shown in Figure 3.When the mobile subscriber recently the position of registration be certain sub-district among the LAC3, when when paging is sent out in a big way the zone (LAC4) of LAC3 after expansion, because having comprised in logic, expansion LAC4 is in LAC1, the sub-district of LAC2 and LAC3 juncture area, even therefore the mobile subscriber is in this three's borderline region activity, but for some reason, do not cause registration, also still can paging arrive this mobile subscriber, thereby improved paging success rate, having solved travelling carriage moves around between the Different L AC in BSC, when having little time to upgrade location registers, their juncture area may cause the unsuccessful phenomenon of paging, solved border paging problem between the inner Different L AC of BSC,, improved the call successful rate on the inner Different L AC of BSC border based on expansion LAC.

Referring to Fig. 4, Fig. 4 illustrates how the present invention solves the paging of the expansion LAC on the inner different B SC of MSC border.

Hang with 2 BSC under the MSC, 3 LAC wherein arranged among the BSC1, be respectively LAC1, LAC2 and LAC3, their scope among the figure with zone that solid line defined.2 LAC are arranged among the BSC2, are respectively LAC5 and LAC6, their scope among the figure with zone that solid line defined.LAC7 is expansion LAC, and its scope is the left part of the LAC5 that with dashed lines defined among the BSC2, has a common boundary with LAC3.

Cell information according to expansion LAC7 shown in Figure 4 comprises carries out corresponding data configuration in MSC side and BSC side.When the MSC registration location nearest according to the mobile subscriber, in the LAC3 of BSC1 zone during the distributing paging of certain sub-district, according to different paging policies, can be earlier at the LAC3 of BSC1 distributing paging, if paging is response not, then again to the LAC3 of BSC1 and the expansion LAC7 distributing paging of BSC2; Perhaps directly for the first time just to the LAC3 of BSC1 and the expansion LAC7 distributing paging of BSC2.

Considering that the LAC scope is little, under the not high situation of the paging load that causes by the paging expansion, also can directly the actual LAC among the BSC be defined as and expand LAC.As above among Fig. 4, can dispose the data that are associated with LAC5 in the MSC side with the LAC5 among the BSC2 as expansion LAC.Same when the MSC registration location nearest according to the mobile subscriber, in the LAC3 of BSC1 zone during the distributing paging of certain sub-district, according to different paging policies, can be earlier at the LAC3 of BSC1 distributing paging, if paging is response not, then again to the LAC3 of BSC1 and the LAC5 of BSC2 (expansion LAC) distributing paging; Perhaps directly for the first time just to the LAC3 of BSC1 and the LAC5 of BSC2 (expansion LAC) distributing paging.

So solved the mobile subscriber on BSC1 and BSC2 border because back and forth movement continually, when having little time to upgrade location registers, and the possible paging that causes less than phenomenon, improved the paging success rate on border between the BSC.Only having a common boundary with two BSC among Fig. 4 is example, and for the situation that a plurality of BSC have a common boundary, processing method is identical.

When the nearest registration location of mobile subscriber is certain sub-district, LAC3 zone of BSC1, when paging is sent out in a wider zone after the LAC3 expansion, because expansion LAC7 has comprised the border cell that is among the BSC2 that has a common boundary with BSC1 in logic, when perhaps directly the LAC5 among the BSC2 being defined as expansion LAC, LAC5 has equally also comprised two BSC boundary B SC1, sub-district among the BSC2, even therefore the mobile subscriber is in this borderline region activity, but for some reason, do not cause registration, also still can paging arrive this mobile subscriber, thereby raising paging success rate, solved the mobile subscriber on BSC1 and BSC2 border because motion back and forth, when their juncture area has little time to upgrade location registers, may cause the unsuccessful phenomenon of paging, solve the paging problem on border between the BSC.Based on expansion LAC, improved the call successful rate on border between the BSC.

More than related paging policy, for the MSC side, its paging policy can have two kinds of implementations: one is the inferior paging modes of two (many), and two is paging modes.With borderline region paging between the BSC is example.When the inferior paging mode of two (many) is paging for the first time, true LAC distributing paging by BSC under the nearest registration location, during paging for the second time (comprising repeatedly paging), the zone that the expansion LAC of the BSC that has a common boundary by the true LAC of this BSC with this true BSC is comprised issues.A paging mode has considered that paging domain increases the influence to BSC disposal ability and paging load, when sending paging, directly just issues at this BSC true LAC with zone that the expansion LAC of the BSC of this true LAC boundary is comprised for the first time.Which kind of paging policy MSC specifically takes, can be according to expansion LAC when definition, and the paging domain that causes expansion is analyzed influence that it may cause and is determined flexibly and select.

Because in network, have the situation that adopts different manufacturers MSC and BSC networking, promptly MSC is the equipment of a producer, BSC is the equipment of another producer.In order to improve the paging success rate in the BSC coverage, solve the paging problem between the inner Different L AC of its BSC border, the notion of expansion LAC all can be moved to BSC, realize the expansion of paging domain and the definition of expansion LAC, need not the MSC side and additionally cooperate and revise by BSC.

The cell information that base station controller comprises according to the pre-defined expansion of the borderline region of reality LAC, this expansion LAC is the LAC of reality or imaginary LAC, base station controller is corresponding with actual LAC with the cell information that in fact comprises, and is corresponding with the LAC that fabricates with the cell information that comprises in logic.

Base station controller receives from LAC information entrained in mobile switching centre's paging request message, the LAC issuing page message of sub-district, place correspondence and judge according to data configuration whether this LAC has expansion LAC information when registering recently by travelling carriage; When not having expansion LAC information, base station controller is directly by the pairing real cell scope of true LAC issuing page message; When having expansion LAC information, by the logic district scope issuing page message that defines the expansion LAC that is resolved.

In Fig. 2, BSC has LAC1, the LAC of LAC2 and three reality of LAC3.All have expansion LAC corresponding to each LAC, expansion LAC4 is arranged as corresponding LAC1.When MSC presses certain sub-district distributing paging of the nearest registration location-LAC1 of travelling carriage, can carry out the expansion of paging domain in the BSC side, actual paging domain expands to LAC1 and expansion LAC4.Only need increase an expansion LAC table that is associated with each LAC, increase the pairing sub-district of expansion LAC table simultaneously in the BSC side.Configuration and realization are all very simple, flexible.

In the network, also may have the equipment that MSC and part BSC adopt a producer, other BSC adopts the situation of another producer's equipment, and just there is the matching problem of different manufacturers BSC equipment room in this.

The scheme of expanding LAC by the present invention also can flexible networking, can continue to use the scheme of expansion LAC.According to actual needs, MSC and the corresponding expansion of BSC side configuration LAC tables of data a producer during distributing paging, adopt paging scheme of the present invention, in the hope of solving border issue, improve paging success rate.

BSC for another producer has two kinds of coordinated schemes: the one, and BSC software is done suitably to revise, and makes it to possess all functions of utilizing expansion LAC (fabricating LAC and true LAC) scheme, and disposes corresponding tables of data in its BSC and MSC side; The 2nd, BSC does not make any changes, the normal connection, real LAC can be defined as expansion LAC this moment, and increase associated configuration in the MSC side, also can realize the function of paging expansion, but this expansion LAC can not be the LAC that fabricates again, should be actual LAC.

As shown in Figure 5, MSC and BSC1 adopt the product (MSC and BSC1 have expansion LAC function of the present invention) of first company, and BSC2 adopts the product (BSC2 does not make any changes) of company B, and BSC cooperates networking structure.Same Fig. 1 of the definition of each LAC among the BSC1, the included scope of LAC5 and LAC6 is the zone that solid line defines among the BSC2.

When nearest registration location is certain sub-district of LAC5 among the BSC2,, therefore can the LAC3 of BSC1 be defined as the expansion LAC of BSC2 in the MSC side because it can only be defined as real LAC expansion LAC.During the MSC distributing paging, according to certain paging policy, will be to the LAC5 distributing paging of the LAC3 of BSC1 (expansion LAC) and BSC2.Because the expansion of paging domain makes beep-page message issue in the sub-district that comprises BSC1 and BSC2 border, move back and forth on different manufacturers BSC border thereby solve travelling carriage, because of the unsuccessful problem of the caused paging of triggering registration not, the raising paging success rate.

Method of the present invention in MSC and BSC side configuration expansion LAC tables of data, safeguards that simply expansion LAC can freely define according to real network; Solved the problem between interior different B SC border of MSC and the inner Different L AC of the BSC border, improved the paging success rate of these two kinds of borderline regions, and reduced paging pressure; Support the flexible networking of devices from different manufacturers MSC, BSC, improve the border paging success rate simultaneously.

Claims

1. improve the method for borderline region paging success rate in the mobile communication system, it is characterized in that comprising:

A. mobile switching centre's side increases the expansion LAC data configuration that is associated with actual position district LAC in advance, and this expansion LAC is real LAC or imaginary LAC; The cell information that base station controller comprises according to the pre-defined expansion of the borderline region of reality LAC, base station controller is corresponding with real LAC with the cell information that in fact comprises, and is corresponding with the LAC that fabricates with the cell information that comprises in logic; The expansion LAC of mobile switching centre's side is corresponding with the expansion LAC of each base station controller of hanging down;

2. improve the method for borderline region paging success rate in the mobile communication system according to claim 1, it is characterized in that: in the described steps A, expansion LAC is according to the true LAC zone of LAC borderline region planning or the logical combination zone in several partly or entirely true LAC zones.

3. improve the method for borderline region paging success rate in the mobile communication system according to claim 1, it is characterized in that: in the described steps A, the expansion LAC that mobile switching centre increases in advance has one or more, and expansion LAC is associated with one or more base station controllers.

4. improve the method for borderline region paging success rate in the mobile communication system according to claim 1, it is characterized in that: among the described step a, judge whether LAC has expansion LAC information, be that true LAC realizes with the contingency table of expansion LAC in the described data configuration by inquiring about, this contingency table comprises true LAC title and is the incidence relation between a plurality of expansion LAC titles of its configuration.

5. improve the method for borderline region paging success rate in the mobile communication system according to claim 1, it is characterized in that: among the described step b, obtain and expansion LAC associated base station controller, be to realize that by the contingency table of query expansion LAC and base station controller this contingency table comprises the incidence relation between all base station controllers of hanging under expansion LAC title and the mobile switching centre.

6. improve the method for borderline region paging success rate in the mobile communication system according to claim 1, it is characterized in that: among the described step b, when obtaining and expanding LAC associated base station controller, also obtain the number of expansion LAC, each expansion LAC information is passed to each related base station controller according to the data configuration in the steps A.

7. improve the method for borderline region paging success rate in the mobile communication system according to claim 1, it is characterized in that: among the described step a, judge whether LAC has expansion LAC information, in described step b, obtain and expansion LAC associated base station controller, be to realize by the row that increase in the inquiring position sub-district table, the row of this increase, characterize expansion LAC and number thereof and with its associated base station controller.

8. improve the method for borderline region paging success rate in the mobile communication system according to claim 1, it is characterized in that: among the described step c, base station controller is during according to the paging policy issuing page message of mobile switching centre, LAC issuing page message when registering recently by travelling carriage earlier, when this paging does not respond, the further regional issuing page message jointly formed of LAC when registering recently and expansion LAC by travelling carriage.

9. improve the method for borderline region paging success rate in the mobile communication system according to claim 1, it is characterized in that: among the described step c, base station controller is during according to the paging policy issuing page message of mobile switching centre, directly the regional issuing page message formed jointly of LAC when being registered recently by travelling carriage and expansion LAC.

10. improve the method for borderline region paging success rate in the mobile communication system, it is characterized in that comprising:

A1. the cell information that comprises according to the real pre-defined extended position area LAC of borderline region of base station controller, this expansion LAC is real LAC or imaginary LAC, base station controller is corresponding with real LAC with the cell information that in fact comprises, and is corresponding with the LAC that fabricates with the cell information that comprises in logic;

B1. base station controller is pressed the configuration process beep-page message after LAC is expanded in increase, comprising: