CN1154300C - Method for supporting part of routing for integral service digital network user of multiple medium gateway - Google Patents
Method for supporting part of routing for integral service digital network user of multiple medium gateway Download PDFInfo
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Abstract
The present invention relates to a method for supporting part of routes of integrated service digital network users of multiple media gateways, which comprises the steps that a corresponding relation table between a base station controller/a wireless network controller and a straight through route from a gateway mobile exchange center to a relevant media gateway is configured in advance, the gateway mobile exchange center judges a mobile exchange center server where a user is and finds the base station controller/the wireless network controller where the user is at present; thus, the straight through route from the gateway mobile exchange center to the relevant media gateway is found, the gateway mobile exchange center distributes circuit identification codes to the straight through media gateway, and the mobile exchange center server controls and completes the connection of the routes. The present invention enables the gateway mobile exchange center to directly reach through route selection the media gateway of a region where the user is, and thus, the situations that the media gateway of the region where the user is can be reached and the systematic resources are wasted are avoided.
Description
Technical field
The present invention relates to the third generation mobile field, especially in the third generation mobile, mobile switching center server MSC server supports the method for the ISUP ISUP route of a plurality of media gateway MGWs.
Background technology
Let us is talked about from third generation mobile earlier.The development of R99, R4, R5 three kinds of standards has been passed through in third generation mobile so far substantially, and wherein R99 proposed in 1999, and R4 and R5 propose 2000 and calendar year 2001 respectively.In fact the present invention is exactly an improvement on the communication network of R4 standard.The mobile network's of this R4 standard characteristics are that its carrying is separated with control.That is to say that the Business Stream of actual burden business separates with the control flows of carrying out Business Stream control and carries out, in Fig. 1, in fact what thick line was represented is exactly concrete practical business stream, and what dotted line was represented is exactly a control flows.In the drawings we as can be seen, for this network, professional control is mainly undertaken by a mobile switching center server MSC server, it is controlled the business of following equipment such as media gateway MGW.Show two media gateway MGWs at Fig. 1 middle part.Media gateway MGW is meant not only can the transporting speech business, simultaneously can also images, professional gateway such as data.
Because the user on the integrated services digital network ISDN need communicate with the user on the mobile network, like this, public land mobile net PLMN will carry out intercommunication with integrated services digital network ISDN, the data of integrated services digital network ISDN will enter mobile network, will be through a GMSC (gateway mobile switching center) GMSC, like this, want to realize that intercommunication will set up an effective route between media gateway MGW and GMSC (gateway mobile switching center) GMSC, control the foundation of above-mentioned route by mobile switching center server MSC server.If this mobile switching center server MSC server only controls a media gateway MGW, this process is fairly simple:
(1) GMSC (gateway mobile switching center) GMSC carries out cic circuit identification code CIC distribution to this media gateway MGW, and the initial address message IAM that will comprise this cic circuit identification code CIC again mails to mobile switching center server MSC server.
Above-mentioned initial address message IAM is a message in the ISUP ISUP Routing Protocol, it is a message that sends when initially connecting, and cic circuit identification code CIC is a sign indicating number among the initial address message IAM, which gateway this sign indicating number distributes to, mean the gateway of selecting this gateway will send, real data is mail to this gateway for us.
(2) mobile switching center server MSC server controls this media gateway MGW and finishes route with GMSC (gateway mobile switching center) GMSC and be connected.
But the needs during along with the development of third generation mobile and actual networking, it is fewer and feweri that mobile switching center server MSC server only controls this situation of a media gateway MGW, under a lot of situations, mobile switching center server MSC server will control a plurality of media gateway MGWs.The process of this situation is as follows:
(1) GMSC (gateway mobile switching center) GMSC distributes to some cic circuit identification code CIC that carries out of these a plurality of media gateway MGWs, select data are mail to this media gateway MGW, this media gateway MGW is the media gateway MGW of user region not necessarily, because this Network and control are separated, when sending data, can not control, being dealt in which media gateway MGW is at random fully, as shown in Figure 1.Suppose that the user is in media gateway 1 described zone, best path should be to send to media gateway 1 by GMSC (gateway mobile switching center) GMSC, but in fact has been dealt into media gateway 2.The initial address message IAM that will comprise this cic circuit identification code CIC again mails to mobile switching center server MSC server.
(2) mobile switching center server MSC server judges whether the route that GMSC (gateway mobile switching center) GMSC mails to is optimal path, as judging be not, such as last example, GMSC mails to certain bar repeat circuit among the corresponding GMSC of cic circuit identification code CIC and media gateway 2 among the initial address message IAM of mobile switching center server MSC server, then may have 2 kinds of situations:
First kind of situation is that then this moment, the called subscriber was unreachable if media gateway 1 does not exist carrying to be connected with 2 of media gateway;
Second kind of situation is if media gateway 1 exists carrying to be connected with 2 of media gateway, then mobile switching center server MSC server need distribute the carrying connectivity port for the calling of each the type between media gateway 1 and media gateway 2, is established to the carrying connection of media gateway 1 again by media gateway 2.The occupancy of carrying terminal and net exchange resource is 2 times that GMSC directly is routed to media gateway MGW 1 under this situation.
The shortcoming of prior art is: if do not exist carrying to be connected between best media gateway and the actual media gateway that arrives, then the called subscriber is unreachable at this moment; Even under the situation that exists carrying to connect, also there is the problem of waste carrying terminal and net exchange resource.
Summary of the invention
The purpose of this invention is to provide a kind of method of supporting the ISUP route of a plurality of media gateway, it can make GMSC (gateway mobile switching center) GMSC directly be routed to the media gateway of user region, avoids situation unreachable and waste system resource.
For achieving the above object, solution of the present invention is: a kind of method of supporting the ISUP route of a plurality of media gateway, in a carrying and network that control separates, a mobile switching center server MSC server controls a plurality of media gateway MGWs, mobile switching center server MSC server and between the GMSC (gateway mobile switching center) GMSC between traditional integrated services digital network and the mobile network, support ISUP ISUP signaling
A, in mobile switching center server MSC server a pre-configured base station controller BSC/radio network controller (RNC) and mapping table from GMSC (gateway mobile switching center) GMSC to the straight-through route the related media gateway MGW;
B, GMSC (gateway mobile switching center) GMSC judge the mobile switching center server MSC server at user place, get called subscriber's roaming number MSRN to this mobile switching center server MSC server;
C, mobile switching center server MSC server search lane place/cell information that the user writes down when location registers, find user's present located base station controller BSC/radio network controller (RNC));
D, mobile switching center server MSC server are according to user's present located base station controller BSC/radio network controller (RNC), remove to search above-mentioned pre-configured mapping table, find from GMSC (gateway mobile switching center) GMSC to the straight-through route the related media gateway MGW, this route numbering is covered issue GMSC (gateway mobile switching center) GMSC among the roaming number MSRN;
E, GMSC (gateway mobile switching center) GMSC receive above-mentioned roaming number MSRN, taking-up route numbering, carry out cic circuit identification code CIC to the corresponding media gateway MGW of this route numbering and distribute, the initial address message IAM that will comprise this cic circuit identification code CIC again mails to mobile switching center server MSC server;
F, mobile switching center server MSC server control the corresponding media gateway MGW of this route numbering and finish route with GMSC (gateway mobile switching center) GMSC and be connected.
In step c, when mobile switching center server MSC server searches the lane place that the user writes down/cell information when location registers as not finding, then send out a pre-paging to all base station controller BSC/radio network controller (RNC)s that have under its command, whether base station controller BSC/the radio network controller (RNC) that has under its command responds in the scope of this base station controller BSC/radio network controller (RNC) the user, and mobile switching center server MSC server judges user's present located base station controller BSC/radio network controller (RNC) according to this response.
In step c, by visitor's location register VLR the number of moving exchanging center MSC and casual user's number depositing in visitor's location register VLR are put into earlier among the roaming number MSRN, then described route numbering is put among the roaming number MSRN, issues GMSC (gateway mobile switching center) GMSC; In step e, GMSC (gateway mobile switching center) GMSC receives roaming number MSRN, take out the number of moving exchanging center MSC earlier, carry out the judgement of affiliated which mobile switching centre of user, and then take out the route numbering, carry out cic circuit identification code CIC to the corresponding media gateway MGW of this route numbering and distribute.
In step c, can take such scheme: the last nibble Digit of described roaming number MSRN is assigned as deposits the route numbering, the route numbering is placed among this last nibble Digit sends; In step e, GMSC (gateway mobile switching center) GMSC takes out the route numbering from this last nibble Digit.
In step c, also can take such scheme: normal roaming number MSRN back is added nibble Digit, deposit route numbering specially, the route numbering is placed among this nibble Digit that adds sends; In step e, GMSC (gateway mobile switching center) GMSC takes out the route numbering from the nibble Digit that this adds.
Because the present invention a pre-configured base station controller/radio network controller and corresponding the best in Mobile Switching Center Server lead directly to the mapping table of route, found the media gateway of best straight-through route and user region then according to the situation of user's present located base station controller/radio network controller, directly carrying out cic circuit identification code to the media gateway of user region by GMSC (gateway mobile switching center) then distributes, make GMSC (gateway mobile switching center) directly be routed to the media gateway of user region, avoid situation unreachable and waste system resource.
Description of drawings
Fig. 1 is the schematic diagram of the ISUP route of Mobile Switching Center Server support media gateway.
Fig. 2 is a method flow diagram of the present invention.
Preferred forms
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Fig. 2 is a method flow diagram of the present invention.We can be clear that implementation procedure of the present invention in the drawings.Each step of this process is corresponding substantially with the subhead of our back.
(1) a pre-configured base station controller BSC/radio network controller (RNC) and mapping table in mobile switching center server MSC server from GMSC (gateway mobile switching center) GMSC to the straight-through route the related media gateway MGW.
When the mapping table of configurating base station controller BSC and straight-through route, when the mapping table of configuring wireless network controller (RNC) and straight-through route? generally, for the situation of GSM, the mapping table of our configurating base station controller BSC and straight-through route; For the situation of WCDMA, its radio network controller (RNC) is equivalent to the function of GSM base station controller BSC, the mapping table of our configuring wireless network controller (RNC) and straight-through route.
In general, be one to one between base station controller BSC/radio network controller (RNC) and the media gateway MGW, if we have known that the zone at user place is by which base station controller BSC/radio network controller (RNC) administration, this zone is only to there being a media gateway MGW, we have just determined the media gateway in the zone at user place, just can be according to this base station controller BSC/radio network controller (RNC) of relation configuration and the mapping table from GMSC (gateway mobile switching center) GMSC to the straight-through route the related media gateway MGW.
(2) GMSC (gateway mobile switching center) GMSC judges the mobile switching center server MSC server at user place, gets called subscriber's roaming number MSRN to this mobile switching center server MSC server.
GMSC (gateway mobile switching center) GMSC judges that the method for the mobile switching center server MSC server at user place is by searching attaching position register HLR.An important logger of attaching position register HLR public mobile communication net, whole user data of the affiliated travelling carriage in this area and position are at that time deposited in its inside.In this example, we only need the wherein information of the mobile switching center server MSC server at the place of user's registration.
Roaming number is a temporary number that is provided with in order to finish the object of the invention, after GMSC (gateway mobile switching center) GMSC asks for this number, how to dispose this number at mobile switching center server MSC server end, describes in detail in the step of back.
(3) mobile switching center server MSC server searches lane place/cell information that the user writes down when location registers, finds user's present located base station controller BSC/radio network controller (RNC).
The information of the residing base station controller BSC/radio network controller (RNC) of user is to be registered in advance among the mobile switching center server MSC server, mobile switching center server MSC server can search at any time according to this information, but the situation that also can occur can not find.This reason such as restarts because of mobile switching center server MSC server and causes, and in a single day mobile switching center server MSC server restarts, and Deng Ji information will go out the situation of active in advance.When mobile switching center server MSC server searches the lane place that the user writes down/cell information when location registers as not finding, then send out a pre-paging to all base station controller BSC/radio network controller (RNC)s that have under its command, whether base station controller BSC/the radio network controller (RNC) that has under its command responds in the scope of this base station controller BSC/radio network controller (RNC) the user, and mobile switching center server MSC server judges user's present located base station controller BSC/radio network controller (RNC) according to this response.
(4) mobile switching center server MSC server is according to user's present located base station controller BSC/radio network controller (RNC), remove to search above-mentioned pre-configured mapping table, find from GMSC (gateway mobile switching center) GMSC to the straight-through route the related media gateway MGW, this route numbering is covered issue GMSC (gateway mobile switching center) GMSC among the roaming number MSRN.
In this step, by visitor's location register VLR the number of moving exchanging center MSC and casual user's number depositing in visitor's location register VLR are put into earlier among the roaming number MSRN, then described route numbering is put among the roaming number MSRN, issues GMSC (gateway mobile switching center) GMSC.Can there be multiple choices the position that the route numbering is put among the roaming number MSRN, the more common practice has two kinds: a kind of is that last nibble Digit with described roaming number MSRN is assigned as and deposits the route numbering, the route numbering is placed among this last nibble Digit send; Another kind is that normal roaming number MSRN back is added nibble Digit, deposits the route numbering specially, the route numbering is placed among this nibble Digit that adds send.
Suppose that we take a kind of way in back.Under normal circumstances, the roaming number MSRN that distributes for the user does not contain the route numbering, as:
86139M1M2M300N1N2N3N4
Wherein, M1M2M3 is MSC number, and N1N2N3N4 is the casual user's number among the VLR,
After containing the route numbering, the above-mentioned roaming number MSRN that distributes to the user has then become:
86139M1M2M300N1N2N3N4K1
Top K1 promptly is used as the relative numbering (1 Digit be enough to satisfy the demand) of the media gateway MGW corresponding with called subscriber's current roaming position in all media gateway MGWs, and this numbering principles and requirements is reached an agreement between mobile switching center server MSC server and adjacent GMSC/PSTN thereof.
For instance, suppose that above-mentioned roaming number MSRN is 861394560012341, then wherein MSC number be 456, casual user's number among the VLR is 1234, route is numbered 1, that is to say that media gateway MGW the relative numbering in all media gateway MGWs corresponding with called subscriber's current roaming position is 1.
(5) GMSC (gateway mobile switching center) GMSC receives above-mentioned roaming number MSRN, taking-up route numbering, carry out cic circuit identification code CIC to the corresponding media gateway MGW of this route numbering and distribute, the initial address message IAM that will comprise this cic circuit identification code CIC again mails to mobile switching center server MSC server.
Suppose that we have taked first kind in the above-mentioned way that the route numbering is put among the roaming number MSRN, then GMSC (gateway mobile switching center) GMSC takes out the route numbering from this last nibble Digit; As take second kind, then GMSC (gateway mobile switching center) GMSC takes out the route numbering from the nibble Digit that this adds.
(6) mobile switching center server MSC server controls the corresponding media gateway MGW of this route numbering and finishes route with GMSC (gateway mobile switching center) GMSC and be connected.This part is a process of the prior art, so do not give unnecessary details.
Claims (6)
1, a kind of method of supporting the ISUP route of a plurality of media gateway, in a carrying and network that control separates, a mobile switching center server MSC server controls a plurality of media gateway MGWs, mobile switching center server MSC server and between the GMSC (gateway mobile switching center) GMSC between traditional integrated services digital network and the mobile network, support ISUP ISUP signaling
A, in mobile switching center server MSC server a pre-configured base station controller BSC/radio network controller (RNC) and mapping table from GMSC (gateway mobile switching center) GMSC to the straight-through route the related media gateway MGW;
B, GMSC (gateway mobile switching center) GMSC judge the mobile switching center server MSC server at user place, get called subscriber's roaming number MSRN to this mobile switching center server MSC server;
C, mobile switching center server MSC server search lane place/cell information that the user writes down when location registers, find user's present located base station controller BSC/radio network controller (RNC);
D, mobile switching center server MSC server are according to user's present located base station controller BSC/radio network controller (RNC), remove to search above-mentioned pre-configured mapping table, find from GMSC (gateway mobile switching center) GMSC to the straight-through route the related media gateway MGW, this route numbering is covered issue GMSC (gateway mobile switching center) GMSC among the roaming number MSRN;
E, GMSC (gateway mobile switching center) GMSC receive above-mentioned roaming number MSRN, taking-up route numbering, carry out cic circuit identification code CIC to the corresponding media gateway MGW of this route numbering and distribute, the initial address message IAM that will comprise this cic circuit identification code CIC again mails to mobile switching center server MSC server;
F, mobile switching center server MSC server control the corresponding media gateway MGW of this route numbering and finish route with GMSC (gateway mobile switching center) GMSC and be connected.
2, the method for the ISUP route of a plurality of media gateway of support according to claim 1, it is characterized in that: in step b, GMSC (gateway mobile switching center) GMSC judges that the method for the mobile switching center server MSC server at user place is by searching attaching position register HLR, has write down the information of mobile switching center server MSC server at the place of user's registration among the attaching position register HLR.
3, the method of the ISUP route of a plurality of media gateway of support according to claim 1, it is characterized in that: in step c, when mobile switching center server MSC server searches the lane place that the user writes down/cell information when location registers as not finding, then send out a pre-paging to all base station controller BSC/radio network controller (RNC)s that have under its command, whether base station controller BSC/the radio network controller (RNC) that has under its command responds in the scope of this base station controller BSC/radio network controller (RNC) the user, and mobile switching center server MSC server judges user's present located base station controller BSC/radio network controller (RNC) according to this response.
4, according to the method for the ISUP route of claim 1, a plurality of media gateway of 2 or 3 described supports, it is characterized in that: in steps d, by visitor's location register VLR the number of moving exchanging center MSC and casual user's number depositing in visitor's location register VLR are put into earlier among the roaming number MSRN, then described route numbering is put among the roaming number MSRN, issues GMSC (gateway mobile switching center) GMSC; In step e, GMSC (gateway mobile switching center) GMSC receives roaming number MSRN, take out the number of moving exchanging center MSC earlier, carry out the judgement of affiliated which mobile switching centre of user, and then take out the route numbering, carry out cic circuit identification code CIC to the corresponding media gateway MGW of this route numbering and distribute.
5, the method for the ISUP route of a plurality of media gateway of support according to claim 4, it is characterized in that: in steps d, the last nibble Digit of described roaming number MSRN is assigned as deposits the route numbering, the route numbering is placed among this last nibble Digit sends; In step e, GMSC (gateway mobile switching center) GMSC takes out the route numbering from this last nibble Digit.
6, the method for the ISUP route of a plurality of media gateway of support according to claim 4, it is characterized in that: in steps d, normal roaming number MSRN back is added nibble Digit, deposit route numbering specially, the route numbering is placed among this nibble Digit that adds sends; In step e, GMSC (gateway mobile switching center) GMSC takes out the route numbering from the nibble Digit that this adds.
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| CNB011251174A CN1154300C (en) | 2001-08-13 | 2001-08-13 | Method for supporting part of routing for integral service digital network user of multiple medium gateway |
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| CNB011251174A CN1154300C (en) | 2001-08-13 | 2001-08-13 | Method for supporting part of routing for integral service digital network user of multiple medium gateway |
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| CN1154300C true CN1154300C (en) | 2004-06-16 |
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| CN1965552B (en) * | 2004-04-21 | 2012-02-29 | 阿尔卡特无线技术公司 | Media gateway interconnection routing in a distributed mobile switching center environment |
| JP2005347801A (en) * | 2004-05-31 | 2005-12-15 | Oki Electric Ind Co Ltd | Ip communication system and ip address allocation method |
| JP4796754B2 (en) * | 2004-06-15 | 2011-10-19 | 日本電気株式会社 | Network connection system and network connection method |
| CN1770759B (en) * | 2004-11-05 | 2010-09-01 | 中兴通讯股份有限公司 | Method for holding uniformity of media gateway controller and resource state on media gateway |
| CN100393170C (en) * | 2005-01-18 | 2008-06-04 | 中兴通讯股份有限公司 | Routing method based on segmentation on multiple media gateways by roaming number |
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| CN100450206C (en) * | 2005-09-23 | 2009-01-07 | 华为技术有限公司 | Base station controller multi-homing method, device and network in CDMA2000 |
| CN100372330C (en) * | 2005-10-31 | 2008-02-27 | 华为技术有限公司 | Method for selecting access service network gateway of base station |
| CN100456846C (en) * | 2005-11-28 | 2009-01-28 | 华为技术有限公司 | Wireless network end office and call switching method |
| US8391153B2 (en) | 2006-02-17 | 2013-03-05 | Cisco Technology, Inc. | Decoupling radio resource management from an access gateway |
| CN101401462B (en) * | 2006-02-17 | 2012-07-04 | 思科技术公司 | Optimal home agent allocation |
| CN101496387B (en) | 2006-03-06 | 2012-09-05 | 思科技术公司 | System and method for access authentication in a mobile wireless network |
| US8620380B2 (en) * | 2006-08-29 | 2013-12-31 | Intel Corporation | Subscriber identity module having a plurality of subscriber identities |
| CN101207630B (en) * | 2006-12-18 | 2012-07-18 | 中兴通讯股份有限公司 | Method of application layer controlled NO 7 signaling dynamic route selection |
| CN101257437A (en) * | 2007-02-28 | 2008-09-03 | 华为技术有限公司 | System, switch and method for reselecting call arbitration node failure routing |
| CN101193446B (en) * | 2007-05-11 | 2010-08-04 | 华为技术有限公司 | A signaling wireless network controller and UI management method |
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| CN101217802B (en) * | 2008-01-08 | 2010-12-08 | 华为技术有限公司 | A method and device to trigger calling services when the user is under roaming |
| CN101815359B (en) * | 2009-12-18 | 2013-11-06 | 华为技术有限公司 | Load creating method, deactivation method, service gateway and mobile communication system |
| CN102572903B (en) * | 2010-12-31 | 2015-08-12 | 中兴通讯股份有限公司 | The selection of access support node and disaster recovery method, system and access control equipment |
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