CN101035361A - Route calling method in the mobile communication network - Google Patents
Route calling method in the mobile communication network Download PDFInfo
- Publication number
- CN101035361A CN101035361A CNA2006100597713A CN200610059771A CN101035361A CN 101035361 A CN101035361 A CN 101035361A CN A2006100597713 A CNA2006100597713 A CN A2006100597713A CN 200610059771 A CN200610059771 A CN 200610059771A CN 101035361 A CN101035361 A CN 101035361A
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- msc
- hlr
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- roaming number
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/06—Registration at serving network Location Register, VLR or user mobility server
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Abstract
The invention is a call routing method in mobile communication network, helpful to reduce frequency of call failure. And the method comprises: processing call setup information for call to mobile station (MS) in home location register (HLR); responding to the call setup information and transmitting the first request for the MS-related roaming number from the HLR to the first mobile switching center (MSC); and after responding to the first request but not receiving the MS-related roaming number from the first MSC, transmitting the second request for the MS-related roaming number from the HLR to the second MSC.
Description
Technical field
The present invention relates generally to call is routed to mobile device.Especially, although be not exclusively, the present invention relates to use attaching position register (HLR) by mobile switching centre (MSC) routing call in global system for mobile communications (GSM) network.
Background technology
Because a variety of causes is made the call of mobile phone and possibly can't be connected.Called mobile phones may just hurry, shuts down, outside the wireless network scope or otherwise unreachable.In this case, the calling party repeatedly carries out additional calls to called mobile phones usually, till call through and called mobile phones are replied.Because waste calling party's time (calling party is the re-dialing telephone dial train continuously) and because waste must repeat route with the extra voice call of processing (it receives higher network priority usually) up to called phone by the wireless network resource till replying, carry out such repetition additional calls and be inconvenience with problematic.
In global system for mobile communications (GSM) network, use attaching position register (HLR) to route the call to the mobile phone that in network, moves.The relevant specific data where moved of mobile phone in network of HLR storage.Therefore, when new wireless access network (RAN) node of mobile phone roaming in the GSM network, phone is connected to the mobile switching centre (MSC) relevant with this RAN node.MSC identification telephone and notice HLR this phone relevant with this phone carry out radio communication with MSC.If receive the incoming call be directed to this phone subsequently in network, then network is at first got in touch the HLR related with this phone, with the identity of the MSC of the radio communication of knowing current management and this phone.Then, by MSC incoming call is routed to this phone.
Yet MSC is the generating technique problem sometimes, so MSC just becomes (out of service) temporarily out of service.When the technical problem of MSC occurs suddenly or technical problem is instantaneous and when repeating to take place, just can't connect the calling that the mobile phone relevant with MSC out of service carries out.This is because HLR only specifies single MSC for specific mobile phone usually.Therefore, when MSC becomes out of service suddenly, will all can't connect by all incoming calls that this MSC is routed to the phone relevant with this MSC under the normal condition.
Summary of the invention
According to an aspect, the present invention is a kind of method of routing call in mobile communications network.Described method comprises: at the call setup message of attaching position register (HLR) processing for the calling of arriving travelling carriage (MS).The response call setup message will be sent to first mobile switching centre (MSC) from HLR for first request of the roaming number relevant with MS.After response first request does not receive the roaming number relevant with MS from a MSC, will be sent to the 2nd MSC from HLR for second request of the roaming number relevant with MS.
Therefore, embodiments of the invention make it possible to reduce the frequency of call failure in the mobile communications network.Have in covering the given pool area (pool area) of called mobile station under the situation of a plurality of MSC operations, the HLR of management called mobile station is not limited to the request to the roaming number of travelling carriage is sent to that MSC that travelling carriage was registered to last time.On the contrary, HLR can repeatedly get in touch each MSC among a plurality of MSC that move in pool area, can provide roaming number for specific called mobile station up to one of them MSC.
Description of drawings
For the ease of understanding the present invention and can actual implement, below illustrative embodiments that explanation is described with reference to the accompanying drawings, in different figure, similarly Reference numeral is represented identical or functionally similar parts.Accompanying drawing and following detailed description are included in the specification and constitute the part of specification, and further example is according to the embodiment of the present invention and explain various principle and advantages for it.In the accompanying drawings:
The schematic diagram of the assembly of Fig. 1 to be example link to each other the caller platform with travelling carriage (MS) typical global system for mobile communications (GSM) voice data communications network;
Fig. 2 is the schematic diagram of the assembly of the example conventional GSM that comprises pool area;
Fig. 3 is the example message sequence chart of the method for routing call in mobile communications network according to the embodiment of the present invention;
Fig. 4 is the example general flow figure of the method for routing call in mobile communications network according to the embodiment of the present invention.
It will be understood by those skilled in the art that for easy and clear for the purpose of assembly among the figure is shown, but not necessarily draw in proportion.For example, the size of some parts by exaggerative, is understood embodiments of the present invention with help with respect to miscellaneous part among the figure.
Embodiment
Before describing, will be appreciated that described execution mode relates generally to the method step relevant with routing call in mobile communications network and the combination of apparatus assembly according to the specific embodiment of the present invention.Therefore, in due course, represent apparatus assembly and method step with conventional symbols in the accompanying drawings, those skilled in the art only shown those specific detail relevant, so that can can't not distinguish of the present invention disclosing and the details that it will be apparent to those skilled in the art after having read the explanation here with understanding the present invention.
In this document, can use separately such as relational terms such as a left side and the right side, first and second, front and rears, so that entity or action are different from another entity or action, and not necessarily require or hint any actual relationship or order between such entity or the action.Term " comprises " or its any distortion is intended to cover non-comprising of monopolizing, thereby the process, method, article or the equipment that comprise series of elements are not to include only listed those elements but also comprise and clearly not listing or such other intrinsic elements of process, method, article or equipment.Do not having under the situation of more restrictions, before certain element, " comprising one ... " occurring and be not precluded within process, method, article or the equipment that comprises this element having extra identical element.
Referring to Fig. 1, the schematic diagram of the assembly of typical global system for mobile communications (GSM) the voice data communications network 100 that caller platform 105 is linked to each other with travelling carriage (MS) 110 is shown.Described caller platform 105 can be the platform that can be connected to any kind of the public land mobile net network (PLMN) 115 that MS 100 moves therein, for example mobile phone or catv terminal.
In order to start from caller platform 105 to travelling carriage 110 calling, caller platform 105 is at first set up signal with incoming call, and initial address message (IAM) for example sends to the GMSC (gateway mobile switching center) (GMSC) 120 relevant with PLMN 115.If caller platform 105 is another mobile devices, then IAM is routed to GMSC 120 by another PLMN.If caller platform 105 is catv terminals, then IAM is routed to GMSC 120 by local switch.
After receiving that signal is set up in incoming call, GMSC 120 is sent to the attaching position register (HLR) 125 relevant with this travelling carriage 110 with MAP (MAP) call setup message.HLR 125 safeguards the user data relevant with this called mobile station 110, as mobile user comprehensive service digital net (MSISDN) number.HLR 125 also is maintained as this travelling carriage 110 mobile switching centre (MSC) 130 of current service and the identity of corresponding visitor location register (MSC/VLR) is provided.The MAP call setup message that sends to HLR 125 comprises the MAP_SEND_ROUTING_INFORMATION message of the current routing iinformation that for example request and travelling carriage 110 are relevant.
The call setup message that response receives, HLR 125 use the information of the MSISDN visit of called mobile station 110 about the current location of travelling carriage 110, and discern current MSC 130 for travelling carriage 110 services.Subsequently, HLR 125 sends a message to MSC 130, for example the MAP_PROVIDE_ROAMING_NUMBER message of the roaming number that request is relevant with travelling carriage 110.MSC 130 responds (roaming number that comprises MSC 130) by MAP message being sent it back HLR 125, and HLR 125 is transmitted to GSMC 120 with roaming number then.So by using roaming number, GMSC 120 can set up from caller platform 105 to GMSC 120 and directly connect to the calling of MSC 130.At last, MSC 130 mobile paging stations 110 also distribute wireless channel, so as can be between caller platform 105 and travelling carriage 110 call establishment.
Referring to Fig. 2, the schematic diagram of the assembly of the conventional gsm system 200 that comprises pool area 205 is shown.According to third generation partner program (3GPP) standard 23.236, pool area is that travelling carriage can need not to change the zone of roaming under the situation of its service core net (CN) node (for example MSC) therein.Therefore, pool area can reduce between the CN node frequency of upgrading, switching and redistribute, and reduces HLR and upgrade traffic carrying capacity.
Pool area 205 is served by one or more CN nodes, as a MSC 130, the 2nd MSC 210 and the 3rd MSC 215 of all parallel runnings.All travelling carriages such as the travelling carriage 110 of operation in pool area 205 are controlled by wireless access network (RAN) node 220.RAN node 220 can comprise for example radio network controller (RNC) or base station controller (BSC).
According to 3GPP standard 23.236, when the MSC such as MSC 130 can't move, if for example MSC 130 since technical problem and out of service suddenly can't connect to the calling of the travelling carriage of managing by this MSC out of service 130 so.And need wait until that to the calling party of such travelling carriage called mobile station carries out regular position and upgrade (this may need for example to surpass six minutes stand-by period), wait until that perhaps called mobile station carries out mobile originating.If called mobile station is carried out mobile originating, called mobile station is the executing location renewal process at first, and a new MSC will be assigned to this called mobile station.After new MSC was distributed to this called mobile station, other mobile terminatings are called out will can connect this called mobile station again.
Referring to Fig. 3, the message sequence chart 300 of the method for routing call in mobile communications network according to the embodiment of the present invention is shown.Online 305 places send to attaching position register (HLR) 315 such as the call setup message of MAP_SEND_ROUTING_INFORMATION message from GMSC (gateway mobile switching center) (GMSC) 310.This message identification is by the called mobile station of HLR 315 management.Then, online 320 places, the response call setup message, HLR 315 will be sent to first mobile switching centre (MSC) 325 to first request of the roaming number relevant with travelling carriage.For example, can be MAP_PROVIDE_ROAMING_NUMBER message to first request of roaming number, a MSC 325 is the MSC that was registered to last time of travelling carriage normally.
Out of service or otherwise can't handle request from HLR315 the time as a MSC 325, can not receive for first request responding at HLR 315 at roaming number.Yet if a MSC 325 operates in pool area, other MSC also will be positioned at and be the scope of GMSC 310 trials to the RAN node of its travelling carriage of calling out service.
According to embodiments of the invention, HLR 315 safeguards the tabulation of the alternative MSC that an identification and a MSC 325 move in the identical tanks zone.Therefore, when not receiving that at first request responding of roaming number the time, HLR 315 is chosen in the 2nd MSC 330 in the pool area that covers called mobile station from tabulation.Online 335 places, HLR 315 will be sent to the 2nd MSC 330 for second request of the roaming number relevant with called mobile station.If the 2nd MSC is not out of service, it will receive and handle second request to roaming number.Yet because called mobile station is not registered to the 2nd MSC 330, the 2nd MSC 330 can not provide the roaming number relevant with called mobile station immediately.Therefore, online 340 places, the 2nd MSC 330 will send to HLR 315 to the request (for example MAP_RESTORE_DATA message) of the additional customer data relevant with called mobile station.Then, additional customer's data that HLR 315 will be relevant with called mobile station (for example international mobile subscriber identity (IMSI)) record sends back the 2nd MSC 330.At last, online 345 places, the 2nd MSC 330 sends the roaming number relevant with called mobile station to HLR 315.So HLR 315 can respond the call setup message from GMSC 310, and can be by the calling of GMSC 310 and the 2nd MSC 330 foundation and called mobile station.
Those skilled in the art can understand, if when HLR 315 transmission are asked for second of roaming number, the 2nd MSC 330 shown in the message sequence chart 300 is also out of service, and HLR 315 can select also the 3rd MSC in the pool area that covers called mobile station simply so.Therefore, according to embodiments of the invention, HLR 315 can repeat with a plurality of requests of roaming number being sent to the process of a plurality of MSC in the given pool area, till one of them MSC offers HLR 315 with suitable roaming number.
Referring to Fig. 4, the general flow figure of the method 400 of routing call in mobile communications network according to the embodiment of the present invention is shown.In step 405, HLR 315 handle from GMSC 310 receive for call setup message to the calling of travelling carriage (MS).In step 410, HLR315 will be sent to a MSC325 for first request of the roaming number relevant with called MS.In step 415, determine whether to receive first request responding to roaming number from a MSC 325.If, then handle roaming number in step 20, finish calling, and method 400 finishes to travelling carriage.But if do not receive roaming number from a MSC 325 in step 415, then method 400 enters step 425, will be sent to the 2nd MSC 330 from HLR 315 for second request of roaming number.In step 430, HLR 315 receives and handles the request to additional customer's data from the 2nd MSC 330.In step 435, the additional customer's data that write down such as the IMSI relevant with called MS are sent to the 2nd MSC 330.In step 440, handle the roaming number that receives from the 2nd MSC 330 at HLR 315.Therefore, can finish calling, and method 400 finishes to MS.
Therefore, advantage of the present invention comprises the failed calls that reduces in the mobile communications network.Have in covering the given pool area of called mobile station under the situation of a plurality of mobile switching centres (MSC) operation, the attaching position register (HLR) of management called mobile station is not limited to the request to the roaming number of called mobile station is sent to that MSC that travelling carriage was registered to last time.On the contrary, HLR can repeatedly get in touch each MSC among a plurality of MSC that move in pool area, can provide roaming number for specific called mobile station up to one of them MSC.By reducing frequency of call failure, embodiments of the invention make it possible to improve the network user's service quality (QoS) and can more effectively use Internet resources.
Above detailed description only provides example embodiment, and does not mean that qualification scope of the present invention, application or configuration.On the contrary, the detailed description of example embodiment makes those skilled in the art can implement the present invention.Should be appreciated that and under the situation of the spirit and scope of the present invention that do not deviate from claims qualification of enclosing, to carry out various changes the function and the arrangement of assembly and step.Should be appreciated that embodiments of the present invention described herein can comprise one or more conventional processors and the one or more processors of control and specific non-processor circuit together implement aforesaid in mobile communications network routing call some, the unique stored program instructions of major part or repertoire.Non-processor circuit can include but not limited to radio receiver, radio transmitter, signal driver, clock circuit, power circuit and user input device.Like this, these functions can be interpreted as the step of the method for routing call in mobile communications network.Alternatively, some or all of functions can be realized or be realized in one or more application-specific integrated circuit (ASIC)s (ASIC) (wherein some combination of each function or specific function is implemented as self-defined logic) by the state machine that does not have the program stored instruction.Certainly, can use the combination of this dual mode.Therefore, the method and apparatus that is used for these functions has been described here.In addition, although the multiple design alternative that may need certain effort and excite by for example up duration, current techniques and economic consideration, still expect those skilled in the art can disclosed here notion and the guide of principle can easily produce such software instruction and program and IC with minimum test down.
In aforementioned specification, specific implementations of the present invention is disclosed.Yet, should be appreciated that those skilled in the art can carry out various modifications and distortion under the situation of the scope of the present invention that does not deviate from claims qualification of enclosing.Therefore, specification and accompanying drawing are exemplary rather than determinate, and all this modifications all comprise within the scope of the invention.Advantage, benefit, the scheme of dealing with problems and may cause any advantage, benefit or solution takes place or becomes more significantly that element should not be understood that crucial in any or all claim, require or necessary feature or element.The present invention is only limited by the claim of enclosing (being included in any modification that the present invention makes during unsettled) and all equivalents of these claims.
Claims (11)
1. the method for a routing call in mobile communications network, described method comprises:
At the call setup message of attaching position register (HLR) processing for the calling of arriving travelling carriage (MS);
The response call setup message will be sent to first mobile switching centre (MSC) from HLR for first request of the roaming number relevant with MS;
After response first request does not receive the roaming number relevant with MS from a MSC, will be sent to the 2nd MSC from HLR for second request of the roaming number relevant with MS.
2. method according to claim 1 also comprises:
Handle the request that receives from the 2nd MSC for additional customer's data at HLR;
Response is sent to two MSC with the additional customer data relevant with MS from HLR for the request of additional customer's data; And
Handle the roaming number relevant at HLR, wherein respond additional customer's data and receive roaming number from the 2nd MSC at HLR with MS.
3. method according to claim 1 also is included in HLR and receives the roaming number relevant with MS from the 2nd MSC.
4. method according to claim 1, wherein a MSC and the 2nd MSC constitute the element of single pool area.
5. method according to claim 1, wherein call setup message comprises the MAP MAP_SEND_ROUTING_INFORMATION message that transmits from GMSC (gateway mobile switching center) (GMSC).
6. method according to claim 1, wherein first request for the roaming number relevant with MS comprises MAP MAP_PROVIDE_ROAMING_NUMBER message.
7. method according to claim 2, wherein the request for additional customer's data comprises MAP MAP_RESTORE_DATA message.
8. method according to claim 2, wherein relevant with MS additional customer's data comprise international mobile subscriber identity (IMSI) record relevant with MS.
9. method according to claim 1, wherein because a MSC is out of service, response first request does not receive the roaming number relevant with MS from a MSC.
10. method according to claim 1, wherein from be stored in HLR, comprise with tabulation for the identifier of the relevant a plurality of MSC of the pool area of MS service in discern a MSC and the 2nd MSC.
11. method according to claim 10, third generation partner program (3GPP) standard is deferred in the tabulation that wherein is stored among the HLR.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100597713A CN101035361A (en) | 2006-03-07 | 2006-03-07 | Route calling method in the mobile communication network |
| PCT/US2007/062211 WO2007103620A2 (en) | 2006-03-07 | 2007-02-15 | Method for routing calls in a mobile communication network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100597713A CN101035361A (en) | 2006-03-07 | 2006-03-07 | Route calling method in the mobile communication network |
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| Publication Number | Publication Date |
|---|---|
| CN101035361A true CN101035361A (en) | 2007-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100597713A Pending CN101035361A (en) | 2006-03-07 | 2006-03-07 | Route calling method in the mobile communication network |
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| CN (1) | CN101035361A (en) |
| WO (1) | WO2007103620A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104322084A (en) * | 2012-08-29 | 2015-01-28 | 惠普发展公司，有限责任合伙企业 | Circuit-switched call delivery |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5884180A (en) * | 1996-10-30 | 1999-03-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Method of providing a delayed connection announcement to a mobile subscriber within a radio telecommunication system |
| US7606190B2 (en) * | 2002-10-18 | 2009-10-20 | Kineto Wireless, Inc. | Apparatus and messages for interworking between unlicensed access network and GPRS network for data services |
| FI20040841A0 (en) * | 2004-06-17 | 2004-06-17 | Nokia Corp | Method of controlling data communication using a network node group in a communication system |
-
2006
- 2006-03-07 CN CNA2006100597713A patent/CN101035361A/en active Pending
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2007
- 2007-02-15 WO PCT/US2007/062211 patent/WO2007103620A2/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104322084A (en) * | 2012-08-29 | 2015-01-28 | 惠普发展公司，有限责任合伙企业 | Circuit-switched call delivery |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007103620A3 (en) | 2009-04-23 |
| WO2007103620A2 (en) | 2007-09-13 |
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Open date: 20070912 |