CN101047999B - Call continuing method, server and system - Google Patents
Call continuing method, server and system Download PDFInfo
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- CN101047999B CN101047999B CN2006100911522A CN200610091152A CN101047999B CN 101047999 B CN101047999 B CN 101047999B CN 2006100911522 A CN2006100911522 A CN 2006100911522A CN 200610091152 A CN200610091152 A CN 200610091152A CN 101047999 B CN101047999 B CN 101047999B
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Abstract
The invention discloses a method for call subsequent, including: the mobile switching center (MSC) of the recipient user receives a call from the MSC of caller, and pages the recipient user. The MSC of the recipient connects the call to the third MSC when receiving the initiative of the recipient paging response news of the recipient user from third MSC. In addition, the invention also discloses a subsequent call server and subsequent system.
Description
Technical field
The present invention relates to mobile communication technology, be meant a kind of call connection method, service end and system especially.
Background technology
As shown in Figure 1; When travelling carriage (MS) roams in two mobile switching centres (MSC); The overlapping region of MSC1 and MSC2 service area is during like the overlapping region in: the zone that zone that location area (LAI) 1 is identified and LAI2 are identified, if base station sub-system (BSS) is configured to the time-delay registration; MS then might occur and change to the zone that LAI2 identifies, and MS does not initiate the situation of location registers as yet in the zone that LAI2 identified from the regional cut-in without ball that LAll identified.In this case, called if MS does, then should calling can at first be connected to MSC1; MSC1 is at area paging MS that LAI1 identified; But MS has been owing to switched to the service area of MSC2, as: the zone that LAI2 identified, so MSC1 can not receive the page response that MS returns.In order to make the call proceeding success, the common way of taking at present is by service MSC in this case, as: MSCI is simultaneously to its a plurality of edge MSC; As: MSC2 etc. send message; Send the page response that this MS of paging request paging or starting state machine receive this Ms simultaneously by each the edge MSC that receives this message then, and MS may roam into one of them edge MSC, as: MSC2; And return page response to this MSC2; After MSC2 receives this page response, return corresponding response message, thereby finally make the call proceeding success to MSC1.
Can find out by above-mentioned call proceeding process that service MSC sends message to a plurality of edge MSC, and each edge MSC is paging MS behind the related news that receive service MSC, therefore belongs to passive paging mode.Take this mode on the one hand,, thereby can cause paging time-delay to a certain degree because each edge MSC need and serve the related news between the MSC in this MS of paging processing before.On the other hand; Because MS at most only possibly roam into one of them edge MSC; And at this edge MSC sends page response; Thereby cause that other a plurality of edge MSC are carried out such as: receive service MSC message and MS sent the actions such as page response that paging request or starting state machine do not receive MS and all belong to idle work, finally cause the significant wastage of system resource.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of call connection method, service end and system, solve the paging time-delay and the big problem of system resource waste that exist in the existing call connecting method.
The overlapping region and the called subscriber that are positioned at an above MSC service area as the called subscriber change to the zone that second place area identification is identified from the regional cut-in without ball that the primary importance area identification is identified; And this called subscriber is when initiating location registers in zone that second place area identification is identified as yet, and call connection method of the present invention comprises:
After a, called subscriber's serving mobile switching center MSC receives the incoming call from caller MSC, come calling called subscriber through sending paging request to the called subscriber;
The 3rd MSC sends the active page-response message about this called subscriber to said called subscriber's service MSC after receiving the page response that the said called subscriber of non-MSC control sends;
B, called subscriber's service MSC after under the 3rd MSC sends the situation of any message, not receiving active page-response message about this called subscriber from the 3rd MSC, with call proceeding to the 3rd MSC; The edge MSC of the service MSC that said the 3rd MSC is said called subscriber.
In the step b of said method; Said step with call proceeding to the three MSC comprises: after called subscriber's service MSC receives the active page-response message about the called subscriber from the 3rd MSC; Set up the interexchange circuit between self and the 3rd MSC; And behind this called subscriber answer, will be routed to from the incoming call of caller MSC on the interexchange circuit between self and the 3rd MSC.
In the step b of said method, the step that said called subscriber's service MSC sets up the interexchange circuit between self and the 3rd MSC comprises: called subscriber's service MSC is call setup message between the 3rd MSC transmitting system; The 3rd MSC receives after this inter-system call sets up message, set up and this called subscriber's service MSC between interexchange circuit.
In said method, further comprise: the 3rd MSC that receives called subscriber's page response distributes roaming number for this called subscriber, and sends the active page-response message of carrying this roaming number to this called subscriber's service MSC;
Said step b further comprises: said the 3rd MSC carries out location registers to this called subscriber;
Among the step b; Said step with call proceeding to the three MSC comprises: after called subscriber's service MSC receives the active page-response message of the 3rd MSC, send to caller MSC and to comprise Redirection Information and content is the clear message of the transferred number of said roaming number; After caller MSC receives this clear message, remove the calling between self and this service MSC, and according to said transferred number with call proceeding to the three MSC.
In said method; Step b further comprises: after called subscriber's service MSC receives the active page-response message about this called subscriber from the 3rd MSC; This called subscriber is carried out authentication, and after authentication is passed through, return initiatively page response response to the 3rd MSC.
In the step b of said method; The said step that the called subscriber is carried out authentication comprises: called subscriber's service MSC sends authentication request according to the called subscriber's who preserves among self VLR Visitor Location Register VLR CAMEL-Subscription-Information to called subscriber's attaching position register HLR, and from the Authentication Response that this HLR returns, obtains authenticating result.
In said method, said step b further comprises: after called subscriber's service MSC receives the active page-response message about the called subscriber from the 3rd MSC, return initiatively page response response to the 3rd MSC; By the 3rd MSC said called subscriber is carried out authentication.
In the step b of said method; The said step that the called subscriber is carried out authentication comprises: the 3rd MSC obtains this called subscriber's CAMEL-Subscription-Information from called subscriber's HLR; Send authentication request according to the CAMEL-Subscription-Information that obtains to called subscriber's HLR, and from the Authentication Response that this HLR returns, obtain authenticating result.
In addition; The present invention also discloses a kind of call proceeding service end; The overlapping region and the called subscriber that are positioned at an above MSC service area as the called subscriber change to the zone that second place area identification is identified from the regional cut-in without ball that the primary importance area identification is identified; And this called subscriber is as yet when the zone initiation location registers that second place area identification is identified; This service end is used to receive the incoming call from caller MSC; Come calling called subscriber through sending paging request, and do not sending the active page-response message that receives under the situation of any message from the 3rd MSC about this called subscriber to the 3rd MSC to the called subscriber, with call proceeding to the 3rd MSC; The edge MSC of the service MSC that said the 3rd MSC is said called subscriber;
Wherein, the 3rd MSC sends the active page-response message about this called subscriber to said called subscriber's service MSC after receiving the page response that the said called subscriber of non-MSC control sends.
Above-mentioned service end is used to set up the interexchange circuit between self and the 3rd MSC, and with said call proceeding from caller MSC to the interexchange circuit between self and the 3rd MSC.
Above-mentioned service end is used for after receiving the active page-response message that carries roaming number of the 3rd MSC; Send to caller MSC and to comprise Redirection Information and content is the clear message of the transferred number of said roaming number; Indication caller MSC removes self and serves the calling between the MSC with this, and according to said transferred number with Call Forwarding to the three MSC.
At last, the present invention also discloses a kind of call proceeding system, and this system comprises caller MSC, called subscriber's service MSC and the 3rd MSC; Wherein, The overlapping region and the called subscriber that are positioned at an above MSC service area as the called subscriber change to the zone that second place area identification is identified from the regional cut-in without ball that the primary importance area identification is identified; And this called subscriber is when initiating location registers in zone that second place area identification is identified as yet, and caller MSC is used for sending incoming call to called subscriber's service MSC; Called subscriber's service MSC is used to receive the incoming call from caller MSC; Come this called subscriber of paging through send paging request to the called subscriber; And do not sending the active page-response message that receives under the situation of any message from the 3rd MSC to the 3rd MSC, with call proceeding to the 3rd MSC; The edge MSC of the service MSC that said the 3rd MSC is said called subscriber; The 3rd MSC is used for behind the page response that the said called subscriber who receives non-MSC control sends, sending said called subscriber's active page-response message to said called subscriber's service MSC.
In said system, said called subscriber's service MSC is used to set up the interexchange circuit between self and the 3rd MSC, and with said call proceeding from caller MSC to the interexchange circuit between self and the 3rd MSC.
In said system, said the 3rd MSC that receives called subscriber's page response is further used for distributing roaming number for this called subscriber, and sends the active page-response message of carrying this roaming number to this user's service MSC; And the called subscriber carried out location registers;
Said service MSC is further used for sending to caller MSC and comprises Redirection Information and content is the clear message of the transferred number of said roaming number;
Said caller MSC is further used for receiving the clear message from called subscriber's service MSC, removes the calling speech channel between self and this service MSC, and according to the transferred number in this clear message with call proceeding to the three MSC.
In sum; Through call connection method of the present invention, service MSC need not send any message to edge MSC, as: inter-system paging message ISPAGEZ; Edge MSC can the automatic reception called subscriber the active page response, and and then realize follow-up call proceeding.Overcome in the prior art by service MSC when the calling called subscriber, sent the paging time-delay that related news caused and the disadvantage of waste system resource to edge MSC.And according to the present invention; The mode that both can take to expand initiatively page response operation realizes the authentication to the called subscriber by service MSC; Also can take to realize authentication alternately through HLR, thereby realize authentication operations flexibly the called subscriber with the called subscriber by edge MSC.And through with the caller MSC that sets up before the calling called subscriber with serve that calling speech channel between the MSC is routed to the service MSC of follow-up foundation and the mode on the interexchange circuit between the edge MSC realizes call proceeding.In addition; According to the present invention; Can also take after edge MSC receives called subscriber's active page response, send initiatively page-response message to service MSC, and after receiving the active page response response that service MSC returns; This called subscriber is carried out location registers, thereby make this edge MSC in fact become this called subscriber's service MSC.And service MSC is after receiving the active page-response message of edge MSC; Remove the calling speech channel between previous self and the caller MSC that sets up; And edge MSC is sent to caller MSC for the roaming number that this called subscriber distributes; Directly call out speech channel between caller MSC and the edge MSC thereby set up, finally accomplish call proceeding.That has avoided repeat circuit between caller MSC and the service MSC takies and serves taking of interexchange circuit between MSC and the edge MSC.
Description of drawings
Schematic network structure when Fig. 1 is in the overlapping region of two MSC service area for MS.
Fig. 2 is call connection method signaling diagram according to an embodiment of the invention.
Fig. 3 is call connection method signaling diagram according to another embodiment of the present invention.
Fig. 4 is a call connection method signaling diagram according to yet another embodiment of the invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, the present invention is made further detailed description below in conjunction with accompanying drawing.
Core concept of the present invention is: after called subscriber's service MSC receives the incoming call from caller MSC, and calling called subscriber; After called subscriber's service MSC receives the active page-response message about this called subscriber from the 3rd MSC, the 3rd MSC is arrived in call proceeding.Thereby overcome in the prior art by called subscriber's service MSC when the calling called subscriber, send the paging time-delay that the paging related news are caused and the disadvantage of waste system resource to self edge MSC.
Need to prove: the present invention is primarily aimed at the overlapping region and this MS that are positioned at an above MSC service area as MS and makes the call proceeding process when called.And the present invention is based on the call connection method of late paging; Wherein, So-called late paging is different from paging early, and late paging is meant when called subscriber's service MSC receives called subscriber's the route requests of attaching position register (HLR), directly is returned as the roaming number of this called subscriber's distribution to this HLR; Be interim local telephone number (TLDN), caller MSC sets up the calling speech channel between self and this called subscriber's the service MSC according to this TLDN.In addition, above-mentioned the 3rd MSC is the service MSC that is different from caller MSC and called subscriber, and the 3rd MSC is the page response that initiatively receives the user, and sends the initiatively entity of page-response message at the service MSC that receives the page response rear line.And the 3rd MSC mainly refer to the edge MSC of called subscriber's service MSC.
Specify according to call connection method of the present invention through specific embodiment below; And in each embodiment of the following stated; All take initiatively to receive user's page response, and send active page-response message UNSOLRES about this user at the service MSC that receives the page response rear line by each MSC in the system.And each MSC can take to the concrete mode that user's service MSC sends the active page-response message: each MSC can confirm adjacent MSC more than one or for this user according to the zone at the user place that receives page response; And, in each the adjacent MSC that confirms, comprise said user's service MSC to each adjacent MSC transmission active page-response message.
In addition, for the purpose of narrating conveniently, in follow-up description and accompanying drawing, caller MSC representes that with MSC a called subscriber's service MSC uses MSC/VLR b, and the 3rd MSC, as: edge MSC representes with MSC/VLR c.
At first; In one embodiment of this invention; Take service MSC calling called subscriber, and receiving from the 3rd MSC by the called subscriber, as: behind the active page-response message UNSOLRES of one of them edge MSC of this service MSC about this called subscriber; This called subscriber is carried out authentication, and when authentication through after return unsolres response to this edge MSC; Set up the ISSETUP mode through inter-system call then and set up interexchange circuit between self and this edge MSC; Behind called subscriber answer; Reply the ISANSWER mode between edge MSC using system and notify this service MSC; What service MSC will before set up self is routed on the interexchange circuit between self and this edge MSC with calling speech channel between the caller MSC, thereby realizes continuing of calling.The call connection method signaling of this embodiment is as shown in Figure 2, specifically comprises the steps:
Step 201:MSC a receives the originating call call origination from the calling subscriber, and in this calling, carries called subscriber's number.
Step 202:MSC a sends position requests LOCREQ to called subscriber's HLR;
Step 203: after called subscriber's HLR receives this position requests LoCREQ, send route requests ROUTREQ to MSC/VLR b.
Therefore step 204:MSC/VLR b detects the called subscriber and is in idle condition, for this called subscriber distributes roaming number TLDN, and this TLDN is carried among the route response routreq returns to HLR.
Wherein, MSC/VLR b judges that according to the User Status in the VDB this called subscriber is in idle condition, thereby is this user's distribution T LDN, and at this moment, service MSC does not also know that the user possibly roam into edge MSC.
Step 205:HLR responds locreq to MSC a home position after receiving route response routreq, and in this response, comprises the TLDN of Terminationlist parametric form.
Step 206:MSC a uses the TLDN and the predefined interoffice interconnection agreement that are wherein comprised after receiving this position response locreq, sets up the calling speech channel between self and this MSC/VLR b like the Signaling System Number 7 agreement.
This process comprises the steps:
Step 207:MSC/VLR b comes this called subscriber of paging through send paging request Page request to the called subscriber.
Step 208:MSC/VLR c receives this called subscriber's page response page response.
Step 209:MSC/VLR c is to this called subscriber's service MSC; Be that MSC/VLR b sends initiatively page-response message UNSOLRES; In this message, carry sign (MSCID) and the called subscriber's that from the page response that receives, obtains the letters such as authentication parameter of this user's Mobile Identification Number (MIN), MSC/VLRC; Who MSC/VLRb stops this called subscriber of local paging after receiving this active page-response message UNSOLRES.
In above-mentioned steps 208 and 209, MSC/VLR c initiatively paging receiving response page response is different from the page response that receives the called subscriber after the message that receives service MSC in the prior art, promptly passive paging receiving response.Here, edge MSC is not in go down paging receiving response of the triggering of service MSC, but the spontaneous state that is in the paging receiving response, so edge MSC need not to start special state machine.And with prior art in processing mode when edge MSC receives the page response that does not have the corresponding state machine different; Here when edge MSC receives the page response that does not have corresponding with it state machine existence; Not that this page response is abandoned; But take further processing; The zone that the user who promptly responds according to institute's paging receiving belongs to is that relative users is confirmed the MSC of one or more phase portion (the service MSC that in these adjacent MSC, possibly comprise this called subscriber), sends initiatively page-response message UNSOLRES to these adjacent MSC then.A service MSC possibly have a plurality of edge MSC; One of them edge MSC may receive above-mentioned called subscriber's page response; And in all adjacent MSC that each edge MSC confirms, comprise above-mentioned service MSC, therefore serving MSC must receive the active page-response message UNSOLRES about this called subscriber from the edge MSC of self.Edge MSC possibly receive the page response of different user, and can adopt some current mechanism detection called subscriber whether really to roam into its service area.
After step 210:MSC/VLR b receives the active page-response message UNSOLRES of edge MSC; CAMEL-Subscription-Information according to this called subscriber who preserves among self VLR judges whether that needs carry out authentication to this called subscriber; If; Then the HLR to this called subscriber sends authentication request AUTHREQ, carries this called subscriber's authentication parameter among this authentication request AUTHREQ, and execution in step 211 then; Otherwise, send initiatively page response response unsolres to MSC/VLR c; After MSC/VLR c receives this response unsolres, start timer and wait for that MSC/VLR b sends ISSETUP message, execution in step 213 then.
Wherein, the user's who preserves among the VLR of MSC/VLRb CAMEL-Subscription-Information is noted when the user carries out location registers.
After step 211:HLR receives the authentication request of MSC/VLRb; This called subscriber is carried out authentication; And when authentication through after return Authentication Response authreq to MSC/VLR b; And can in this Authentication Response authreq, carry voice encryption parameter (VPMAsK, Voice Privacy Mask) and signaling encryption parameter (SMEKEY, Signaling Message Encryption Key).As HLR during, then return the Authentication Response authreq of failed authentication to MSC/VLR b to called subscriber's failed authentication.
Step 212: after MSC/VLR b receives the Authentication Response authreq that authentication passes through, send initiatively page response response unsolres to MSC/VLR c; After MSC/VLR c receives this response unsolres, start timer and wait for that MSC/VLR b sends ISSETUP message.And when MSC/VLR b receives the Authentication Response authreq of failed authentication, send TCAP Transaction Capability Application Part (TCAP) errored response corresponding with UNSOLRES message to MSC/VLR c; MSC/VLR.After receiving this TCAP errored response, finish this handling process.
This process comprises the steps:
Step 213:MSC/VLR b is call setup message ISSETUP between MSC/VLR c transmitting system, setting up the interexchange circuit between self and this MSC/VLRc, and carries interexchange circuit identification code (IMSCCID), VPMASK and SMEKEY among this ISSETUP.
Wherein, carrying IMSCCID is in order to use MAP (MAP) circuit between service MSC and the edge MSC.
After step 214:MSC/VLR c receives this message, the interexchange circuit between foundation and the MSC/VLR b, and for this called subscriber distributes A interface circuit and assignment air interlace channel, called subscriber's ring this moment;
Step 215:MSC/VLR c call setup between MSC/VLR b transmitting system rings issetup.
Step 216: called subscriber answer is called out.
Step 217:MSC/VLR c is response message ISANSWER between MSC/VLR b transmitting system.
After step 218:MSC/VLR b receives this message ISANSWFR, response isanswer between MSC/VLR b retrieval system.
Step 219:MSC/VLR b is routed to the calling speech channel between self and the MSC a on the interexchange circuit between self and the MSC/VLR subsequently, makes call proceeding accomplish call setup complete, and caller and called users is conversed.
In the foregoing description method, edge MSC does not carry out location registers to the called subscriber in the call proceeding process.When end of calling, adopt the FACREL operation to discharge interexchange circuit between service MSC and the edge MSC.If still be in called subscriber behind the end of calling within the coverage of edge MSC, then initiate location registers by the general position registering flow path; If the called subscriber roams back the coverage of service MSC in calling procedure, then handle to switching flow by behind the interoffice of standard; If called no response is then sent message FACREL by edge MSC to service MSC, service MSC judges whether to trigger Call Forwarding No Reply (CFNA) flow process according to called subscriber's CAMEL-Subscription-Information.
Call connection method according to an embodiment of the invention more than has been described; In this embodiment method; The mode of taking to expand the IJNSOLRES operation realizes the authentication to the called subscriber; The authentication parameter that is about to the called subscriber that edge MSC obtains from institute receives page response initiatively is carried at and is sent to service MSC in the UNSOLRES message, then by serving the mode of MSC initiation to called subscriber's authentication.And the present invention also can take not expand the mode of UNSOLRES operation, but through another kind of mode, promptly initiates the mode to called subscriber's authentication by edge MSC.Through this method of another embodiment of the present invention explanation, the signaling process of this embodiment method is as shown in Figure 3, specifically comprises the steps: below
Step 301 arrives call proceeding to step 306:MSC a the process of MSC/VLR b; The concrete steps that this process comprised are identical with the corresponding steps that above-mentioned steps 201 to step 206 comprises, and no longer praise here and state.
Step 307 to step 314: called subscriber's service MSC calling called subscriber is also carried out the process of authentication to this called subscriber by the edge MSC of this service MSC.
This process specifically comprises the steps:
Step 307: called subscriber's MSC/VLRB comes this called subscriber of paging through send paging request Page request to the called subscriber.
Step 308:MSC/VLR c receives this called subscriber's page response Page response.
Step 309:MSC/VLR c is to this called subscriber's service MSC, and promptly MSC/VLRb sends initiatively page-response message UNSOLRES, the information such as MSCID of in this active page-response message UNSOLRES, carrying this user's MIN and MSC/VLR c; MSC/VLR b stops this called subscriber of local paging after receiving this active page-response message UNSOLRES.
Above-mentioned steps 308 is identical with above-mentioned steps 208 and 209 with 309 concrete realization, repeats no more here.
After step 310:MSC/VLR b receives the active page-response message UNSOLRES from MSC/VLR c, directly return initiatively page response response unsolres to this MSC/VLR c.
After step 311:MSC/VLR c receives this unsolres, send qualification request QUALREQ to called subscriber's HLR, to obtain this called subscriber's CAMEL-Subscription-Information.
Step 312: after called subscriber's HLR receives this qualification request QUALREQ, return the qualification response qualreq that carries this called user subscription information to this MSC/VLR c, and comprise the information that whether need carry out authentication to this called subscriber in this CAMEL-Subscription-Information.
After step 313:Msc/VLR c receives this qualification response qualreq; Judge whether that according to the CAMEL-Subscription-Information that wherein carries needs carry out authentication to this called subscriber; If then the HLR to this called subscriber sends authentication request AUTHREQ, execution in step 314 then; Otherwise, directly starting timer and wait for that MSC/VLR b sends ISSETUP message, execution in step 315 then.
Step 314: called subscriber's HLR carries out authentication to this called subscriber after receiving this authentication request AUTHREQ, and when authentication through after return the Authentication Response authreq that authentication is passed through to MSC/VLR c, carry VPMASK and SMEKEY therein; After MSC/VLR c receives the authreq response that this authentication passes through, start timer and wait for that MSC/VLR b sends ISSETUP message, execution in step 315 then.When HLR loses called subscriber's authentication husband, then return the Authentication Response authreq of failed authentication to MSC/VLR c, after MSC/VLR c receives the Authentication Response authreq of this failed authentication, process ends.
Wherein, this called subscriber of failed authentication explanation does not have authority to connect this calling, and edge MSC no longer waits for ISSETUP message.At this moment, because therefore service MSC and do not know that authentication fails still can send ISSETUP to this edge MSC, and when this edge MSC receives this ISSETUP, then send FACREL and take out stitches.
Step 315 to step 321: with the process of call proceeding to MSC/VLR c; The concrete steps that this process comprised are identical with the corresponding steps that above-mentioned steps 213 to step 219 comprises, and no longer praise here and state.
Call connection method according to two embodiment of the present invention more than has been described; In the above-described embodiments; All take after edge MSC receives called subscriber's page response; Send initiatively page-response message UNSOLRES to this called subscriber's service MSC; After this called subscriber's service MSC receives this active page-response message UNSOLRES, the calling speech channel between self and the caller MSC that have set up further is routed to self and receives on the interexchange circuit between called subscriber's the edge MSC of page response, thereby realize call proceeding.Yet; The present invention also can take after called subscriber's service MSC receives the active page-response message UNSOLRES of respective edges MSC; Remove earlier the calling speech channel between self and the caller MSC that has set up; Then with the true landing office of Call Forwarding to this called subscriber, i.e. processing mode on the edge MSC.The advantage that adopts this scheme is after edge MSC receives called subscriber's page response and call establishment, can not take MAP circuit and the caller MSC that the confession inter-office switchover between service MSC and the edge MSC uses and serve the repeat circuit between the MSC.Through another embodiment of the present invention above-mentioned call connection method is described below, the signaling process of this method is as shown in Figure 4, specifically comprises the steps:
Step 401 arrives call proceeding to step 406:MSC a the process of called subscriber's MSC/VLR b; The concrete steps that this process comprised are identical with the corresponding steps that above-mentioned steps 201 to step 206 comprises, and repeat no more here.
Step 407 to step 411: calling called subscriber and the process of removing the calling speech channel between service MSC and the caller MSC; This process specifically comprises the steps:
Step 407: called subscriber's MSC/VLRb comes this called subscriber of paging through send paging request Page request to the called subscriber.
Step 408:MSC/VLR c receives called subscriber's page response Page response.
Step 409:MSC/VLR c distributes roaming number for this user; As: TLDN; And to this called subscriber's service MSC; Be that MSC/VLR b sends initiatively page-response message UNSOLRES, in this active page-response message UNSOLRES, carry TLDN, this user's MIN and the information such as MSCID of MSC/VLR c of distributing into this user; MSC/VLR b stops this called subscriber of local paging after receiving this active page-response message UNSOLRES.
Above-mentioned steps 408 is identical with above-mentioned steps 208 and 209 with 409 concrete realization, repeats no more here.
Step 410:MSC/VLR b returns initiatively page response response unsolres to MSC/VLR c.
Step 411:MSC/VLR b sends clear message RELEASE to MSC a; As: the REL message in the ISUP signaling; Remove the calling speech channel between previous self and the MSC a that sets up, and in this clear message RELEASE, to carry Redirection Information and the content that content is changed course information Redirectionlnfo be the transferred number that is received from the TLDN of MSC/VLR c.
Step 412 to step 418: to the called subscriber carry out location registers and set up caller MSC and edge MSC between the process of calling speech channel; This process specifically comprises the steps:
After step 412:MSC/VLR c receives this unsolres, send authentication request AUTHREQ to called subscriber's HLR.
Wherein, Authentication described in this step 412 is different with authentication in above-mentioned steps 210 or the step 314; The authentication type of authentication described in above-mentioned steps 210 or the step 314 is exhales authentication eventually; The authentication here then is the authentication of edge MSC before the called subscriber being carried out location registers, belongs to position registering and authentifying.
Step 413: called subscriber's HLR carries out authentication to this called subscriber after receiving this authentication request AUTHREQ, and when authentication through after return the Authentication Response authreq that authentication is passed through to MSC/VLR c.When HLR loses called subscriber's authentication husband, then to MSC/VLR.Return the Authentication Response authreq of failed authentication, after MSC/VLR c receives the Authentication Response authreq of failed authentication, process ends.
Wherein, this called subscriber of failed authentication explanation does not have authority to connect this calling, and edge MSC no longer waits for the TLDN incoming message of caller MSC.Yet, because therefore service MSC and do not know that authentication fails still can send the TLDN incoming message to this edge MSC, if edge MSC receives the TLDN incoming message of this relaying, as: IAM, send clear message, as: REL.
Step 414:MSC/VLR c sends enroll in notifications REGNOT to this called subscriber's HLR after receiving the authreq response that authentication passes through, and request is carried out location registers to this called subscriber.
Step 415: after called subscriber's HLR received this enroll in notifications REGNOT, the MSC/VLR b that carried out location registers to this called subscriber originally sent registration cancellation message REGCANC.
After step 416:MSC/VLR b receives this registration cancellation message REGCANC, delete this called subscriber's positional information, and return registration cancellation response regcanc to this called subscriber's HLR.
Step 417: called subscriber's HLR receives this registration cancellation response regcanc.After, return the signatory letter that carries this called subscriber to MSC/VLR c. the enroll in notifications response regnot of breath; After MSC/VLR c receives this enroll in notifications response regnot, this called subscriber's of record CAMEL-Subscription-Information and positional information in the VLR of self, and begin to wait for TLDN number Incoming.
Step 418:MSC a receives that MSC/VLR b sends carry the clear message RELEASE of transferred number that Redirection Information and content are TLDN after; According to TLDN MSC/VLR c is arrived in call proceeding; Thereby make call proceeding accomplish call setup complete, caller and called users is conversed.
More than explanation is according to call connection method of the present invention, and explanation is according to call proceeding service end of the present invention and call proceeding system below.
Call proceeding service end according to the present invention is used to receive the incoming call from caller MSC, calling called subscriber, and receive active page-response message about this called subscriber from the 3rd MSC, the 3rd MSC is arrived in call proceeding.
Wherein, this service end is used to set up the interexchange circuit between self and the 3rd MSC, and with said call proceeding from caller MSC to the interexchange circuit between self and the 3rd MSC.
Perhaps, this service end is used for sending to caller MSC and comprises Redirection Information and content is the clear message of the transferred number of said roaming number, and MSC is with Call Forwarding to the three MSC in the indication caller.
And this service end also can be used for said called subscriber is carried out authentication.
The service MSC and the 3rd MSC that comprise caller MSC, called subscriber according to call proceeding of the present invention system; Wherein, caller MSC is used for sending incoming call to called subscriber's service MSC; Called subscriber's service MSC is used to receive the incoming call from caller MSC, this called subscriber of paging, and receive active page-response message from the 3rd MSC, the 3rd MSC is arrived in call proceeding; The 3rd MSC is used for sending initiatively page-response message to service MSC.
Wherein, above-mentioned called subscriber's service MSC is used to set up the interexchange circuit between self and the 3rd MSC, and with said call proceeding from caller MSC to the interexchange circuit between self and the 3rd MSC.
Perhaps, the user that above-mentioned the 3rd MSC also can be used for receiving page response distributes roaming number, and sends the active page-response message of carrying this roaming number to this user's service MSC; And the called subscriber carried out location registers; Service MSC is further used for sending to caller MSC and comprises Redirection Information and content is the clear message of the transferred number of said roaming number; Caller MSC is further used for receiving the clear message from called subscriber's service MSC, removes the calling speech channel between self and this service MSC, and according to the transferred number in this clear message with call proceeding to the three MSC.
In addition, above-mentioned service MSC or the 3rd MSC also can be used for said called subscriber is carried out authentication.
The edge MSC of the service MSC that above-mentioned the 3rd MSC is the called subscriber.
Thus; Through the call connection method based on late paging according to the present invention, service MSC need not send any message to edge MSC, as: inter-system paging message ISPAGEZ; Edge MSC can the automatic reception called subscriber the active page response, and and then realize follow-up call proceeding.Overcome in the prior art by service MSC when the calling called subscriber, sent the paging time-delay that related news caused and the disadvantage of waste system resource to edge MSC.And according to above-mentioned first and second embodiment of the present invention; The mode that both can take to expand initiatively page response operation realizes the authentication to the called subscriber by service MSC; Also can take HLR by edge MSC and called subscriber to carry out alternant way and realize authentication, thereby realize authentication operations flexibly the called subscriber.And in these two embodiment, all take with the caller MSC that sets up before the calling called subscriber with serve that calling speech channel between the MSC is routed to the service MSC of follow-up foundation and the mode on the interexchange circuit between the edge MSC realizes call proceeding.In addition; The call connection method of a third embodiment in accordance with the invention is taked after edge MSC receives called subscriber's active page response; Send initiatively page-response message to service MSC; And after receiving the active page response response that service MSC returns, this called subscriber is carried out location registers, thereby make this edge MSC in fact become this called subscriber's service MSC.In addition; MSC is after receiving the active page-response message of edge MSC in service; Remove the calling speech channel between previous self and the caller MSC that sets up; And edge MSC is sent to caller MSC for the roaming number that this called subscriber distributes, thus set up directly calling speech channel between caller MSC and the edge MSC, finally accomplish call proceeding.That has avoided repeat circuit between caller MSC and the service MSC takies and serves taking of MAP circuit between MSC and the edge MSC.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being made, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. call connection method; It is characterized in that; The overlapping region and the called subscriber that are positioned at an above MSC service area as the called subscriber change to the zone that second place area identification is identified from the regional cut-in without ball that the primary importance area identification is identified; And this called subscriber is when initiating location registers in zone that second place area identification is identified as yet, and this method comprises:
After a, called subscriber's serving mobile switching center MSC receives the incoming call from caller MSC, come calling called subscriber through sending paging request to the called subscriber;
The 3rd MSC sends the active page-response message about this called subscriber to said called subscriber's service MSC after receiving the page response that the said called subscriber of non-MSC control sends;
B, called subscriber's service MSC after under the 3rd MSC sends the situation of any message, not receiving active page-response message about this called subscriber from the 3rd MSC, with call proceeding to the 3rd MSC; The edge MSC of the service MSC that said the 3rd MSC is said called subscriber.
2. method according to claim 1; It is characterized in that; Among the step b, said step with call proceeding to the three MSC comprises: after called subscriber's service MSC receives the active page-response message about the called subscriber from the 3rd MSC, set up the interexchange circuit between self and the 3rd MSC; And behind this called subscriber answer, will be routed to from the incoming call of caller MSC on the interexchange circuit between self and the 3rd MSC.
3. method according to claim 2 is characterized in that, among the step b, the step that said called subscriber's service MSC sets up the interexchange circuit between self and the 3rd MSC comprises: called subscriber's service MSC is call setup message between the 3rd MSC transmitting system; The 3rd MSC receives after this inter-system call sets up message, set up and this called subscriber's service MSC between interexchange circuit.
4. method according to claim 1; It is characterized in that; Said method further comprises: the 3rd MSC that receives called subscriber's page response distributes roaming number for this called subscriber, and sends the active page-response message of carrying this roaming number to this called subscriber's service MSC;
Said step b further comprises: said the 3rd MSC carries out location registers to this called subscriber;
Among the step b; Said step with call proceeding to the three MSC comprises: after called subscriber's service MSC receives the active page-response message of the 3rd MSC, send to caller MSC and to comprise Redirection Information and content is the clear message of the transferred number of said roaming number; After caller MSC receives this clear message, remove the calling between self and this service MSC, and according to said transferred number with call proceeding to the three MSC.
5. according to claim 1,3 or 4 described methods; It is characterized in that; Said step b further comprises: after called subscriber's service MSC receives the active page-response message about this called subscriber from the 3rd MSC; This called subscriber is carried out authentication, and after authentication is passed through, return initiatively page response response to the 3rd MSC.
6. method according to claim 5; It is characterized in that; Among the step b; The said step that the called subscriber is carried out authentication comprises: called subscriber's service MSC sends authentication request according to the called subscriber's who preserves among self VLR Visitor Location Register VLR CAMEL-Subscription-Information to called subscriber's attaching position register HLR, and from the Authentication Response that this HLR returns, obtains authenticating result.
7. according to claim 1,3 or 4 described methods; It is characterized in that; Said step b further comprises: after called subscriber's service MSC receives the active page-response message about this called subscriber from the 3rd MSC, return initiatively page response response to the 3rd MSC; By the 3rd MSC said called subscriber is carried out authentication.
8. method according to claim 7; It is characterized in that; Among the step b; The said step that the called subscriber is carried out authentication comprises: the 3rd MSC sends authentication request according to the CAMEL-Subscription-Information that obtains to called subscriber's HLR, and from the Authentication Response that this HLR returns, obtains authenticating result from the CAMEL-Subscription-Information that called subscriber's HLR obtains this called subscriber.
9. a call proceeding system is characterized in that, this system comprises caller MSC, called subscriber's service MSC and the 3rd MSC; Wherein, The overlapping region and the called subscriber that are positioned at an above MSC service area as the called subscriber change to the zone that second place area identification is identified from the regional cut-in without ball that the primary importance area identification is identified; And this called subscriber is as yet when the zone initiation location registers that second place area identification is identified
Said caller MSC is used for sending incoming call to called subscriber's service MSC;
Said called subscriber's service MSC is used to receive the incoming call from caller MSC; Come this called subscriber of paging through send paging request to the called subscriber; And do not sending the active page-response message that receives under the situation of any message from the 3rd MSC to the 3rd MSC, with call proceeding to the 3rd MSC; The edge MSC of the service MSC that said the 3rd MSC is said called subscriber;
Said the 3rd MSC is used for behind the page response that the said called subscriber who receives non-MSC control sends, sending the active page-response message about this called subscriber to said called subscriber's service MSC.
10. system according to claim 9 is characterized in that, said called subscriber's service MSC is used to set up the interexchange circuit between self and the 3rd MSC, and with said call proceeding from caller MSC to the interexchange circuit between self and the 3rd MSC.
11. system according to claim 9; It is characterized in that; Said the 3rd MSC that receives called subscriber's page response is further used for distributing roaming number for this called subscriber, and sends the active page-response message of carrying this roaming number to this user's service MSC; And the called subscriber carried out location registers;
Said service MSC is further used for sending to caller MSC and comprises Redirection Information and content is the clear message of the transferred number of said roaming number;
Said caller MSC is further used for receiving the clear message from called subscriber's service MSC, removes the calling speech channel between self and this service MSC, and according to the transferred number in this clear message with call proceeding to the three MSC.
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| CN2006100911522A CN101047999B (en) | 2006-06-30 | 2006-06-30 | Call continuing method, server and system |
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| CN2006100911522A CN101047999B (en) | 2006-06-30 | 2006-06-30 | Call continuing method, server and system |
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| CN101047999B true CN101047999B (en) | 2012-01-25 |
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| CN101150759B (en) * | 2007-10-16 | 2012-03-07 | 中兴通讯股份有限公司 | Method and system for characteristic vibration ring notification service |
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|---|---|---|---|---|
| US6600920B1 (en) * | 1998-07-29 | 2003-07-29 | Nortel Networks Limited | Method of and system for delivering wireless calls |
| CN1538779A (en) * | 2003-04-18 | 2004-10-20 | 华为技术有限公司 | Method of realizing initiate calling during intelligent user roaming |
| CN1578500A (en) * | 2003-07-28 | 2005-02-09 | 华为技术有限公司 | Method for realizing portable mobile number |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6600920B1 (en) * | 1998-07-29 | 2003-07-29 | Nortel Networks Limited | Method of and system for delivering wireless calls |
| CN1538779A (en) * | 2003-04-18 | 2004-10-20 | 华为技术有限公司 | Method of realizing initiate calling during intelligent user roaming |
| CN1578500A (en) * | 2003-07-28 | 2005-02-09 | 华为技术有限公司 | Method for realizing portable mobile number |
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