CN100499871C - Calling method and device under the BSC multi-home networking - Google Patents
Calling method and device under the BSC multi-home networking Download PDFInfo
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- CN100499871C CN100499871C CNB2007100739314A CN200710073931A CN100499871C CN 100499871 C CN100499871 C CN 100499871C CN B2007100739314 A CNB2007100739314 A CN B2007100739314A CN 200710073931 A CN200710073931 A CN 200710073931A CN 100499871 C CN100499871 C CN 100499871C
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Abstract
This invention discloses a method of call in a BSC network. It includes the following steps: the Caller initiates calls, calling mobile switch center MSC / visits location register VLR, extracts MSC logo from the news of the Home Location Register HLR, judges whether caller and called of MSC is the same BSC pool of resources, extracts the data of called, initiates calls in the council, and establishes call connection in the council. The present invention also discloses a call device in the BSC network. For the ordinary calls, if the user of caller and called in the same BSC multi-user network, using the device can change among the call for within the call to save the road resources between in the council.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of call technology under the BSC multi-home networking.
Background technology
Usually, a base station controller (Base Station Contral, BSC) can only meet (the Mobile Switching Center of a mobile switching centre, MSC), as shown in Figure 1, be registered in user under the MSC1 and want and the telex network that is registered in MSC2 under, must pass through being connected of MSC1 and MSC2, carry out station to station call.It should be explicitly made clear at this point: a VLR (Visitor Location Register, Visited Location Registor) is generally a MSC service, and existing network equipment VLR is embedded among the MSC usually.Therefore, sometimes MSC, VLR are closed and write as MSC/VLR.
As shown in Figure 2, the BSC multi-home networking is meant that a BSC can link to each other with a plurality of MSC, and BSC handles distribution of services by certain algorithm to each MSC, realizes load sharing between each MSC by the dynamic adjustment of distributing.As the Iu-Flex in A-Flex in the CDMA field and the WCDMA field.
Each MSC and BSC form a resource pool in same BSC multi-home networking, have realized the resource-sharing of BSC to each MSC by the many ownership of BSC.BSC in resource pool and all MSC of this resource pool are connected.
Under present BSC multi-home networking pattern, the process of carrying out station to station call between the user is, as shown in Figure 3:
1, the calling subscriber makes a call, and caller BSC1 sends CM Service Req message to caller MSC1, carries caller information and called number;
2, caller MSC1 sends Assignment Request message to caller BSC1, requires to set up the land circuit between MSC1 and BSC1 and the channel of eating dishes without rice or wine;
3, (Home Location Register HLR) sends LOCREQ message to caller MSC1, gets called positional information to attaching position register;
4, HLR sends ROUTREQ message (route request information) to called subscriber place VLR, gets TLDN (Temporary Local Directory Number, temporary position enquiry number) number;
5, send routreq (TLDN) message to HLR behind the called MS C2/VLR2 distribution T LDN number, the TLDN number is returned to HLR;
6, HLR sends LOCREQ message to caller MSC1, and the TLDN number is returned as caller MSC1;
7, caller BSC1 sends Assignment Complete message for caller MSC1, and the indication land circuit and the information of eating dishes without rice or wine are set up;
8, caller MSC1 sends IAM message to called MS C2, is with called TLDN number, requires to set up an interexchange circuit;
9, called MS C2 sends Paging Request message to called BSC2, initiates paging by called BSC2 to the called subscriber;
10, called BSC2 paging is behind the called subscriber, and called BSC2 sends Paging for called MS C2
The Response page-response message;
11, called MS C2 sends Assignment Request message to called BSC2, requires to set up the land circuit between MSC and BSC and the channel of eating dishes without rice or wine;
12, called BSC2 sends Assignment Complete message for called MS C2, and the indication land circuit and the information of eating dishes without rice or wine are set up;
13, called MS C2 sends ACM message to caller MSC1, and the indication interexchange circuit is set up;
14, behind the called subscriber answer, called BSC2 sends CONNECT message for called MS C2;
15, called MS C2 sends ANM to caller MSC1, the notice called party answer.
Obviously, after connecting foundation, the communication between the user will take two interoffice traffic resources between MSC always, and this method of calling has caused the in short supply of interoffice traffic resource.
Summary of the invention
The embodiment of the invention provides the method for calling under a kind of BSC multi-home networking, for common station to station call, if caller and called users in same BSC multi-home networking scope, can change to office call with the calling of interoffice, to save the traffic resource of interoffice.
The method of calling under the BSC multi-home networking that the embodiment of the invention provides may further comprise the steps:
The calling subscriber makes a call, calling mobile exchanging center MSC/ Visited Location Registor VLR extracts called MS C sign from the message that attaching position register HLR returns, judge that calling and called MSC belongs to same BSC and belongs to resource pool more, obtain called party data, initiate the calling of intra-office, set up office call and connect.
A kind of calling device under the BSC multi-home networking comprises:
Receiving element is used to receive message and user data;
Transmitting element is used to send message and user data;
Extraction unit is used for extracting called MS C sign from described message;
Judging unit, be used for belonging to tables of data that same BSC belongs to other MSC of resource pool more and judge that calling and called MSC is when belonging to same BSC and belonging to resource pool more, sends message request sharing users data by transmitting element by called MS C sign and record and this MSC.
Embodiment of the invention beneficial effect is as follows:
The method and the device that provide by the embodiment of the invention, belong to same BSC and belong to resource pool more when caller MSC/VLR judges with called, obtain called party data, caller MSC/VLR just can directly communicate by letter with called BSC and connect, calling is carried out at caller MSC/VLR, need not pass through called MS C/VLR, thereby save the traffic resource of interoffice.
Description of drawings
Fig. 1 is traditional networking schematic diagram;
Fig. 2 is existing BSC multi-home networking schematic diagram;
Fig. 3 is the signaling process figure of station to station call under the existing BSC multi-home networking pattern;
Fig. 4 is the signaling process figure of station to station call under the BSC multi-home networking of the embodiment of the invention;
Fig. 5 is the signaling process figure of the CW business that realizes under the station to station call of BSC multi-home networking of the embodiment of the invention;
Fig. 6 is that another of the embodiment of the invention realized the signaling process figure of CW business under the station to station call of BSC multi-home networking;
Fig. 7 is the calling system structural representation under a kind of BSC multi-home networking of the embodiment of the invention;
Embodiment
The call flow under the BSC multi-home networking of the embodiment of the invention comprises the steps: that the calling subscriber makes a call, calling mobile exchanging center MSC/ Visited Location Registor VLR extracts called MS C sign from the message that attaching position register HLR returns, judge that calling and called MSC belongs to same BSC and belongs to resource pool more, obtain called party data, initiate the calling of intra-office, set up office call and connect.
In the embodiment of the invention, belong at a BSC increases resource pool tables of data record and belongs to other MSC information that same BSC belong to resource pool with this MSC more more among each MSC in the resource pool.The BSC2 that supposes the BSC1 of calling subscriber MS1 and called subscriber MS2 belongs to same BSC and belongs to resource pool more, and calling subscriber MS1 calls out the signaling process of the station to station call of called subscriber MS2, as shown in Figure 4:
1, when calling subscriber MS1 makes a call, caller BSC1 sends CM ServiceReq message to caller MSC1, carries caller information and called number;
2, caller MSC1 sends Assignment Request message to caller BSC1, requires to set up the land circuit between MSC1 and BSC1 and the channel of eating dishes without rice or wine;
3, caller MSC1 sends LOCREQ message to HLR, gets called MS 2 positional informations;
4, HLR sends ROUTREQ message to called MS C2/VLR2, gets the TLDN number to the MSC2/VLR2 at called MS 2 places;
5, behind the called MS C2/VLR2 distribution T LDN number, send routreq (TLDN) message to HLR;
6, HLR returns to caller MSC1 to the TLDN number by LOCREQ message, has called MS C2 sign in message;
7, caller BSC1 sends Assignment Complete message to MSC1, and the tip ground circuit and the information of eating dishes without rice or wine are built up;
8, caller MSC1 receives the LOCREQ message of HLR, judge that calling and called MSC belongs to same BSC to belong to resource pool more, then send USERDATASHAREREQ request shared subscriber data message to called MS C2/VLR2, the user data of request shared called MS 2, concrete determination methods can for: caller MSC1 is identified in the resource pool tables of data according to the called MS C2 that carries in the LOCREQ message and mates, and judges whether called MS C2 belongs to same BSC and belong to resource pool more;
9, called MS C2/VLR2 receives USERDATASHAREREQ message, return called party data for caller MSC1/VLR1, the user data of the called MS of returning 2 comprises (need to prove that the positional information caller MSC/VLR1 by called current place just can obtain the called current BSC information that belongs to) such as the cell information at place of user's CAMEL-Subscription-Information or called current position information such as called MS 2 or location area information.Called MS C2/VLR2 is provided with that sign expression called subscriber MS2 is current to be called out in caller MSC1/VLR1, and the sign of record caller MSC/VLR.Called MS C2/VLR2 can discharge the TLDN number of distribution this moment;
10, after caller MSC1/VLR1 obtained called MS 2 user data, caller MSC1 sent out Paging Request message to called BSC2, initiated paging by called place BSC2 to the called subscriber;
11, called BSC2 paging is after called MS 2, and called BSC2 sends PagingResponse message for caller MSC1, points out paging to the called subscriber;
12, caller MSC1 sends Assignment Request message to called BSC2, requires to set up the land circuit between MSC1 and BSC2 and the channel of eating dishes without rice or wine;
13, called BSC2 sends Assignment Complete message for caller MSC1, and the tip ground circuit and the information of eating dishes without rice or wine are built up;
14, after called subscriber MS2 replied, called BSC sent CONNECT message for caller MSC1, connects;
15, end of calling, call release between BSC1, MSC1/VLR1 and BSC2;
16, caller MSC1/VLR1 sends the shared message USERDATASHARECANCEL of cancellation user data to called MS C2/VLR2, and caller MSC1/VLR1 removes the called party data of preserving;
17, called MS C2/VLR2 receives USERDATASHARECANCEL message, removes the current sign of calling out in caller MSC1/VLR1 of expression called subscriber that is provided with.
Through after the above-mentioned steps, the calling of MS1 and MS2 is carried out under MSC1, and need not pass through MSC2, thereby has realized that station to station call changes office call into.
Need to prove that caller MSC1/VLR1 obtains called party data except can obtaining to other entities that has called party data to called MS C2/VLR2 obtains.
As called MS 2 CW (the Call Waiting that contracted, Call Waiting) after the business,, there is third party user MS3 to call out MS2 if in MS2 and MS1 communication process, then called MS C2 can send to new call request the current MSC1 that is calling out, and triggers the CW business at MSC1.As shown in Figure 5, process is as follows:
1, third party user MS3 calling party MS2, the third party MSC3 at MS3 place send LOCREQ message to HLR, get the positional information of called MS 2;
2, HLR sends ROUTREQ message to called MS C2/VLR2, gets the TLDN number to the MSC2/VLR2 at called MS 2 places;
3, behind the called MS C2/VLR2 distribution T LDN number, send routreq (TLDN) message to HLR;
4, HLR sends LOCREQ message to MSC3, and the TLDN number is returned to MSC3;
5, MSC3 sends IAM message to MSC2, with called TLDN number, requires to set up the connection with the called subscriber;
6, MSC2 detects the sign whether MS2 is just calling out in other MSC/VLR, finds that the user calls out at MSC1/VLR1, and the called subscriber MS2 CW business of having contracted, and then sends IAM message to MSC1, triggers the CW business at MSC1.
For the CW business also can be by current calling calling and called VLR mutual, distribute roaming number at the VLR of Calling Side, Calling Side directly arrive in new like this calling, in Calling Side triggering CW business.As shown in Figure 6, process is as follows:
1, third party user MS3 calling party MS2, the third party MSC3 at MS3 place send LOCREQ message to HLR, get the positional information of called MS 2.
2, HLR sends ROUTREQ message to called MS C2/VLR2, gets the TLDN number to the MSC2/VLR2 at called MS 2 places;
3, called MS C2/VLR2 receives ROUTREQ message, detect the sign whether MS2 is just calling out in other MSC/VLR, find that user MS2 calls out at MSC1/VLR1, and the called subscriber MS2 CW business of having contracted then sends to the MSC1/VLR1 that user MS2 calls out to ROUTREQ message;
4, behind the MSC1/VLR1 distribution T LDN number, send routreq (TLDN) message to MSC2/VLR2;
5, MSC2/VLR2 sends routreq (TLDN) message to HLR, and TLDN is returned to HLR;
6, HLR sends routreq (TLDN) message to MSC3, and the TLDN number is returned to MSC3;
7, MSC3 sends IAM message to MSC1, triggers CW at MSC1;
As shown in Figure 7, the invention provides the calling system under a kind of BSC multi-home networking, comprise at least two MSC/VLR (there is shown two), HLR, a plurality of BSC (there is shown four).Wherein be provided with the calling device (hereinafter to be referred as calling device) under the BSC multi-home networking among the MSC/VLR, specifically comprise: receiving element, transmitting element, memory cell, extraction unit, judging unit and mark setting unit.
When the calling subscriber makes a call, the receiving element 711 in the calling device 71 among the caller MSC1/VLR1 is received the request message that the BSC1 at calling subscriber place sends; Transmitting element 712 sends message and gets called subscriber's positional information to HLR; The receiving element 721 of the calling device 72 among the called MS C2/VLR2 receives that HLR gets the message of TLDN number; Behind the called MS C2/VLR2 distribution T LDN number, return the TLDN number to HLR by transmitting element 722; Receiving element 711 among the caller MSC1/VLR1 is received the message that includes the TLDN number that HLR returns, and has called MS C2 sign in message; Called MS C2 sign in the message that extraction unit 714 extraction receiving elements 711 in the calling device 71 receive, the record of judging unit 713 by storage in called MS C2 sign and the memory cell 715 and this MSC belong to the tables of data that same BSC belongs to other MSC of resource pool more and judge that calling and called MSC belongs to same BSC to belong to resource pool more, then send the shared called party data of message request by transmitting element 712 to called MS C2/VLR2; After receiving element 721 was received message, transmitting element 722 returned called party data to caller MSC1/VLR1; Mark setting unit 723 among the called MS C2/VLR2 is provided with sign expression the called subscriber is current calls out in caller MSC1/VLR1, and the sign of record caller MSC/VLR; After receiving element 712 among the caller MSC1/VLR1 obtained called party data, caller MSC1/VLR1 initiated paging by called place BSC2 to the called subscriber, set up office call and connected.
Work as end of calling, caller MSC1/VLR1 notice called MS C2/VLR2 cancellation user data is shared, and caller MSC1/VLR1 removes the called party data of preserving; Mark setting unit 723 among the called MS C2/VLR2 is removed the current sign of calling out of expression called subscriber of setting and the sign of caller MSC1/VLR1 in caller MSC1/VLR1.
Method and device by the embodiment of the invention provides under BSC multi-home networking condition, increase the tables of data record and belong to other MSC that same BSC belong to resource pool with this MSC more in each MSC/VLR.When caller MSC/VLR receives the locreq message of HLR, judge that calling and called MSC belongs to same BSC and belongs to resource pool more, then send message request and share called party data to called place MSC/VLR.Called place MSC/VLR receives request shared called party data message, returns called party data for caller MSC/VLR, and the called party data that returns comprises user's CAMEL-Subscription-Information, called current position information.Caller MSC/VLR just can directly communicate by letter with called BSC and connect like this, calls out and carries out at caller MSC/VLR, need not pass through called MS C/VLR, thereby save the traffic resource of interoffice.
The calling and called MSC/VLR that the embodiment of the invention also provides in current calling under the BSC multi-home networking realizes the method for CW business during at same resource pool, triggers the CW business at caller MSC/VLR alternately by calling and called MSC/VLR when third party's customer call called subscriber.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being made within the spirit and principles in the present invention, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1, a kind of method of calling under the base station controller BSC multi-home networking is characterized in that, comprises following steps:
The calling subscriber makes a call, calling mobile exchanging center MSC/ Visited Location Registor VLR extracts called MS C sign from the message that attaching position register HLR returns, judge that calling and called MSC belongs to same BSC and belongs to resource pool more, obtain called party data, initiate the calling of intra-office, set up office call and connect.
2, the method for claim 1 is characterized in that, before the calling subscriber made a call, record belonged to the information that same BSC belongs to the MSC of resource pool more with this MSC in MSC/VLR.
3, the method for claim 1, it is characterized in that, the described called party data that obtains comprises the steps: that described caller MSC/VLR sends message request to called MS C/VLR and shares called party data, after called MS C/VLR receives described message, called party data is returned to described caller MSC/VLR.
4, the method for claim 1 is characterized in that, the calling of described initiation intra-office is meant that described caller MSC/VLR makes a call to the called subscriber by the BSC at called subscriber place.
5, method as claimed in claim 3, it is characterized in that, after described called MS C/VLR returns to described caller MSC/VLR with called party data, described called MS C/VLR is provided with sign expression described called subscriber is current and just calls out in described caller MSC/VLR, and writes down the sign of described caller MSC/VLR.
6, method as claimed in claim 5, it is characterized in that, when calling subscriber and called subscriber call out, third party user initiates new calling by called MS C/VLR to the called subscriber, called MS C/VLR judges that the called subscriber just calls out at the caller MSC/VLR that same BSC belongs to resource pool more, then notify described caller MSC/VLR, trigger Call Waiting CW business by caller MSC/VLR.
7, method as claimed in claim 6, it is characterized in that described called MS C/VLR judges that it is that described called MS C/VLR judges and is provided with the sign that the user calls out at described caller MSC/VLR that caller MSC/VLR that the called subscriber is just belonging to resource pool at same BSC more calls out.
8, method as claimed in claim 6 is characterized in that, described to notify described caller MSC/VLR be that called MS C/VLR sends to described caller MSC/VLR with new call request message.
9, method as claimed in claim 6 is characterized in that, described to notify described caller MSC/VLR be that called MS C/VLR sends to described caller MSC/VLR with route request information.
10, method as claimed in claim 9 is characterized in that, described called MS C/VLR further comprises after route request information is sent to described caller MSC/VLR: return to called MS C/VLR behind the described caller MSC/VLR distribution T LDN number; Described called MS C/VLR returns to third party MSC/VLR with TLDN; Described third party MSC/VLR sends call request message to described caller MSC/VLR.
As each described method of claim 5 to 10, it is characterized in that 11, behind the end of calling, described caller MSC/VLR sends message cancellation user data to described called MS C/VLR and shares; After described called MS C/VLR receives described message, remove described sign.
12, the method for claim 1 is characterized in that, behind the end of calling, described caller MSC/VLR removes the called party data of preserving.
13, a kind of calling device under the BSC multi-home networking is characterized in that, comprising:
Receiving element is used to receive message and user data;
Transmitting element is used to send message and user data;
Extraction unit is used for extracting called MS C sign from described message;
More judging unit is used for belonging to tables of data that same BSC belongs to the MSC of resource pool by called MS C sign and minute book MSC and judges that calling and called MSC is when belonging to same BSC and belonging to resource pool more, sends message request sharing users data by transmitting element.
14, the calling device under the BSC multi-home networking as claimed in claim 13 is characterized in that, described device comprises:
Memory cell is used to store described record and this MSC belongs to the tables of data that same BSC belongs to the MSC of resource pool more.
15, the calling device under the BSC multi-home networking as claimed in claim 13 is characterized in that, described device comprises:
Mark setting unit is used for after transmitting element returns called party data, and this user of sign expression is set calls out at caller MSC/VLR, and the sign of record caller MSC/VLR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100739314A CN100499871C (en) | 2007-03-30 | 2007-03-30 | Calling method and device under the BSC multi-home networking |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100739314A CN100499871C (en) | 2007-03-30 | 2007-03-30 | Calling method and device under the BSC multi-home networking |
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| CN101035369A CN101035369A (en) | 2007-09-12 |
| CN100499871C true CN100499871C (en) | 2009-06-10 |
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| CNB2007100739314A Expired - Fee Related CN100499871C (en) | 2007-03-30 | 2007-03-30 | Calling method and device under the BSC multi-home networking |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101998666B (en) * | 2009-08-12 | 2014-09-10 | 中兴通讯股份有限公司 | Method for realizing local call and local exchange |
| CN103369636A (en) * | 2012-03-28 | 2013-10-23 | 中国移动通信集团公司 | Method, system and apparatus for choosing same media gateway in MSC pool |
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