Embodiment
Below, earlier some notions that occur are herein made an explanation:
Calling terminal: be the voice/data communications between foundation and another user terminal, set up the requesting users terminal and send communication to the source switching equipment;
Terminal called: calling terminal is set up the object of voice/data communications;
Source switching equipment: the switching equipment of control calling terminal;
Target switching equipment: the switching equipment of control terminal called;
Support characteristic: refer in particular to the characteristic that switching equipment is supported the signaling under the variety of protocol, as, " supporting IP-based SIP signaling " (usually, all switching equipment all can be supported general signaling), or " not supporting IP-based SIP signaling ".Certainly, for other the same signaling that can only be supported by the part switching equipment with the SIP signaling, its principle with in this paper specific embodiment to the describing for example of SIP signaling, the invention is not restricted to the SIP signaling.
Fig. 2 is the GSM network diagram according to a specific embodiment of the present invention.Comprising attaching position register (HLR, a kind of webserver) V, the III of mobile switching centre (hereinafter to be referred as MSC
III) and the IV of mobile switching centre (to call MSC in the following text
IV), be in MSC respectively
IIIAnd MSC
IVUser terminal C and user terminal D under the control.The calling terminal of supposing this calling is user terminal C, and user terminal D is then as terminal called.Among the figure, MSC
IIIComprise sources traffic equipment 2, and MSC
IVComprise target communication device 3, understand MSC easily
IIIComprise target communication device equally.Suppose MSC
IVCan only support general signaling, then, alternatively, MSC
IVThe support characteristic of signaling is not inquired about at the target switching equipment.
After user terminal C makes a call the request of setting up, as the MSC of source switching equipment
IIITo attaching position register V (hereinafter to be referred as HLR
V) the query aim switching equipment (is MSC
IV) the support characteristic, HLR
VBy to MSC
IVInquire about, obtain MSC
IVThe support characteristic after, the notice MSC
III, so that it can determine suitable communication mode.
Fig. 3 is the method flow diagram that is used for auxiliary definite source switching equipment and target communication mode among switching arrangements in GSM network of network server (as attaching position register) according to a specific embodiment of the present invention.Be described below in conjunction with Fig. 2 and with reference to Fig. 3.
After the request that user terminal C initiates to converse with user terminal D, MSC
III(suppose its support SIP signaling) set up for the conversation of user terminal hold consultation before, determine earlier and the target switching equipment between communication mode, so, MSC
IIITo HLR
VTransmission targeted customer position enquiring request message (as, MAP sends the routing iinformation request message), so to obtain the relevant information of target switching equipment., in step S10:
HLR
VReception is from MSC
IIIMAP send the routing iinformation request message, wherein comprise the number of terminal called (user terminal D).
Then, HLR
VTo inquire about based on described targeted customer's position enquiring request message, to obtain MSC
IVRelevant information.Particularly, in step S11, HLR
VSend the number that extracts user terminal D the routing iinformation request message from described MAP, and in self database, inquire about according to this number, the map information that comprises the switching equipment of user terminal under current with it in this database, and when user terminal is arranged an accessed switching equipment place registration at every turn, obtain upgrading.By the inquiry in this database, HLR
VCan clearly know user terminal D present located switching equipment (be the target switching equipment, MSC
IV) characteristic information (as sign).
Need explanation at this, calling terminal and terminal called both may be under the different switching equipment controls, also may be under the same switching equipment control, and for above-mentioned two kinds of different situations, the source switching equipment is different with the communication mode between the target switching equipment, for example, when source switching equipment and target switching equipment are same switching equipment, the source switching equipment need not the support characteristic of understand target switching equipment, also just need not to set up negotiation before into the communication of user terminal and sends signaling to the target switching equipment.Operation after determining for communication mode, existing ripe scheme in the prior art, therefore, major concern of the present invention how to help the source switching equipment determine and the target switching equipment between communication mode.
Behind the characteristic information of learning the switching equipment of user terminal D under current, HLR
VNext the processing procedure in step 12 has following several situation:
Situation 1:
HLR does not judge source switching equipment and target
Whether switching equipment is same switching equipment
Under this situation, in step S12, HLR
VAccording to the MSC that determines before
IVCharacteristic information, generate a target information inquiry request message, according to a specific embodiment of the present invention, this target information inquiry request message is the MAP request message that Provides Roaming Number.
Then, HLR
VWith the described MAP pairing switching equipment of characteristic information that request message is sent in step S11 the target switching equipment of determining that Provides Roaming Number is MSC
IV, with to MSC
IVInquire its support characteristic.
The method that provides according to a sixth aspect of the invention, MSC
IVTo respond HLR
VDescribed query requests, according to himself support situation, generate the target information query response message to corresponding signaling, wherein comprise MSC
IVRelevant information, particularly, target information query response message in the present embodiment is the MAP return results message that Provides Roaming Number, and wherein comprises instruct MS C
IVIndication information to the support characteristic of signaling.After this, MSC
IVThis MAP that generates return results message that Provides Roaming Number is issued HLR
V
Correspondingly, HLR
VReception is from MSC
IVThe MAP return results message that Provides Roaming Number, and therefrom extract instruct MS C
IVThe indication information of support characteristic.
In step S13, HLR
VWith described instruct MS C
IVThe indication information of support characteristic join in targeted customer's position enquiring response message of generation, according to a specific embodiment of the present invention, described targeted customer's position enquiring response message is that MAP sends routing iinformation return results message.Because HLR
VNot to MSC
IIIAnd MSC
IVWhether be that same switching equipment is judged, so it can't get rid of the possibility that said two devices is not same switching equipment, so, HLR
VThe MAP that generates sends in the routing iinformation return results message except comprising instruct MS C
IVThe indication information of support characteristic outside, also to comprise and be enough to make MSC
IIIDetermine itself and MSC
IVThe criterion information that whether is same switching equipment (belongs to MSC equally with above-mentioned indication information
IVRelevant information), as, comprise MSC
IVSign or other can represent MSC
IVThe characteristic information of identity.
Then, HLR
VThe described MAP that generates is sent routing iinformation return results message be sent to MSC
III, determine and MSC for it
IVBetween communication mode.
Situation 2:
HLR judges source switching equipment and target
Whether switching equipment is same switching equipment
Under this situation, precedingly address, when source switching equipment and target switching equipment were same switching equipment, the source switching equipment need not the support characteristic of understand target switching equipment.Preferably, HLR
VEarlier to MSC
IIIAnd MSC
IVWhether be that same switching equipment is judged, that is, and the MSC that based target customer location inquiry request message is obtained
IIIAnd MSC
IVCharacteristic information compare, judge whether it identical.
According to Figure 2 shows that source switching equipment and target switching equipment are not the situations of same switching equipment, HLR
VTo obtain the judged result of negating, in this case, MSC
IIIBe necessary to know MSC
IVThe support characteristic.So, HLR
VIn step S12, generate the MAP request message that Provides Roaming Number, and the described MAP request message that Provides Roaming Number is sent to MSC
IV, with to MSC
IVInquire its support characteristic.
MSC
IVTo respond HLR
VDescribed query requests, generate the MAP return results message that Provides Roaming Number, wherein comprise MSC
IVRelevant information, particularly, comprise instruct MS C
IVIndication information to the support characteristic of signaling.After this, MSC
IVThis MAP that generates return results message that Provides Roaming Number is issued HLR
V
Correspondingly, HLR
VReception is from MSC
IVThe MAP return results message that Provides Roaming Number, and therefrom extract instruct MS C
IVThe indication information of support characteristic.
In step S13, HLR
VWith described instruct MS C
IVThe indication information of the support characteristic MAP that joins generation send in the routing iinformation return results message, preferably, also the judged result with above-mentioned judgement gained joins in this message, to make things convenient for MSC
IIIJudge itself and MSC
IVIt or not same switching equipment.Certainly, HLR
VAlso can be with MSC
IVCharacteristic information with described judged result or replace this judged result to join in the described message, for MSC
IIIJudge itself and MSC
IVSame switching equipment whether.
Then, HLR
VThe described MAP that generates is sent routing iinformation return results message be sent to MSC
III, determine and MSC for it
IVBetween communication mode.
Consider another kind of situation, that is, judged result is that source switching equipment and target switching equipment are same switching equipment.At this moment, the source switching equipment does not need to know the support characteristic of target switching equipment, therefore preferably, after HLR judges two switching equipment and is same switching equipment, generate MAP and send routing iinformation return results message, and add described judged result therein, alternatively, HLR also can be with the characteristic information of target switching equipment with described judged result or replace this judged result to join in the described message, judge whether same switching equipment of itself and target switching equipment for the source switching equipment, and then definite communication mode.
Fig. 4 is the auxiliary means of communication block diagram that is used for auxiliary definite source switching equipment and target communication mode among switching arrangements in GSM network of network server (as attaching position register) according to a specific embodiment of the present invention.Be described below in conjunction with Fig. 2 and with reference to Fig. 4.
Auxiliary means of communication 1 shown in Figure 4 comprises, first receiving device 10, first deriving means 11, notifying device 12, inquiry unit 13.Wherein, first deriving means 11 comprises determines the device 110 and second deriving means 111, and described inquiry unit 13 comprises first generating apparatus 130, first dispensing device 131, second receiving system 132 and extraction element 133.Particularly, described second deriving means 111 comprises judgment means 1110 and controlled definite device 1111.
After the request that user terminal C initiates to converse with user terminal D, MSC
III(suppose its support SIP signaling) set up for the conversation of user terminal hold consultation before, determine earlier and the target switching equipment between communication mode, so, MSC
IIITo HLR
VTransmission targeted customer position enquiring request message (as, MAP sends the routing iinformation request message), to obtain the relevant information of target switching equipment.
HLR
VFirst receiving device 10 in the auxiliary means of communication 1 at place receives from MSC
IIIMAP send the routing iinformation request message, wherein comprise the terminal called number of (as, user terminal D).
Then, HLR
VTo send the routing iinformation request message based on described MAP and inquire about, to obtain for MSC
IIIDetermine itself and MSC
IVBetween the MSC of communication mode
IVRelevant information.Particularly, by determining that the definite extraction element (for simplicity's sake, not illustrating in the drawings) in the device 110 extracts the number of user terminal D from described targeted customer's position enquiring request message, again by definite inquiry unit (not shown) according to this number at HLR
VIn database in inquire about, comprise the map information of the switching equipment of user terminal under current with it in this database, when user terminal is arranged an accessed switching equipment place registration at every turn, obtain upgrading.By the inquiry in this database, HLR
VCan clearly know user terminal D present located switching equipment (be the target switching equipment, MSC
IV) characteristic information (as sign).
Behind the characteristic information of learning the switching equipment of user terminal D under current, HLR
VEnsuing processing procedure comprises following several situation:
Situation 1:
HLR does not judge source switching equipment and target
Whether switching equipment is same switching equipment
Under this situation, first generating apparatus 130 is according to the MSC that determines before
IVCharacteristic information, generate a target information inquiry request message, according to a specific embodiment of the present invention, this target information inquiry request message is the MAP request message that Provides Roaming Number.
Then, be MSC by first dispensing device 131 with the described MAP pairing switching equipment of characteristic information that request message is sent to the target switching equipment of determining that device 110 is determined that Provides Roaming Number
IV, with to MSC
IVInquire its support characteristic.
The method that provides according to a sixth aspect of the invention, MSC
IVTo respond HLR
VDescribed query requests, according to himself support situation, generate the target information query response message to corresponding signaling, wherein comprise MSC
IVRelevant information, particularly, target information query response message in the present embodiment comprises instruct MS C
IVIndication information to the support characteristic of signaling.According to a specific embodiment of the present invention, this target information query response message is the MAP return results message that Provides Roaming Number.After this, MSC
IVThis target information query response message that generates is issued HLR
V
Correspondingly, auxiliary means of communication 1 receives from MSC by second receiving system 132 on it
IVThe MAP return results message that Provides Roaming Number, and therefrom extract instruct MS C by extraction element 133
IVThe indication information of support characteristic.
Second generating apparatus 120 is with described instruct MS C
IVThe indication information of support characteristic join in targeted customer's position enquiring response message of generation, according to a specific embodiment of the present invention, described targeted customer's position enquiring response message is that MAP sends routing iinformation return results message.Because HLR
VNot to MSC
IIIAnd MSC
IVWhether be that same switching equipment is judged, so it can't get rid of the possibility that said two devices is not same switching equipment, so, HLR
VThe MAP that generates sends in the routing iinformation return results message except comprising instruct MS C
IVThe indication information of support characteristic outside, also to comprise and be enough to make MSC
IIIDetermine itself and MSC
IVThe criterion information that whether is same switching equipment (belongs to MSC equally with above-mentioned indication information
IVRelevant information), as, comprise MSC
IVSign or other can represent MSC
IVThe characteristic information of identity.
Then, the described MAP that will be generated by second dispensing device 121 sends routing iinformation return results message and is sent to MSC
III, determine and MSC for it
IVBetween communication mode.
Situation 2:
HLR judges source switching equipment and target
Whether switching equipment is same switching equipment
Under this situation, precedingly address, when source switching equipment and target switching equipment were same switching equipment, the source switching equipment need not the support characteristic of understand target switching equipment. and preferably, the judgment means 1110 in the auxiliary means of communication 1 is earlier to MSC
IIIAnd MSC
IVWhether be that same switching equipment is judged, that is, and the MSC that based target customer location inquiry request message is obtained
IIIAnd MSC
IVCharacteristic information compare, judge whether it identical.
Figure 2 shows that source switching equipment and target switching equipment are not the situations of same switching equipment, therefore, judgment means 1110 will obtain the judged result of negating, in this case, and MSC
IIIBe necessary to know MSC
IVThe support characteristic.So judgment means 1110 is notified first generating apparatus 130 with its judged result,, by first dispensing device 131 the described MAP request message that Provides Roaming Number is sent to MSC again to generate the MAP request message that Provides Roaming Number
IV, with to MSC
IVInquire its support characteristic.
MSC
IVTo respond HLR
VDescribed query requests, generate the MAP return results message that Provides Roaming Number, wherein comprise MSC
IVRelevant information, particularly, comprise instruct MS C
IVIndication information to the support characteristic of signaling.After this, MSC
IVThis MAP that generates return results message that Provides Roaming Number is issued HLR
V
Correspondingly, second receiving system 132 receives from MSC
IVThe described MAP return results message that Provides Roaming Number, therefrom extract instruct MS C by extraction element 133 again
IVThe indication information of support characteristic.
Second generating apparatus 120 is with described instruct MS C
IVThe indication information of the support characteristic MAP that joins generation send in the routing iinformation return results message, preferably, also the judged result that judgment means 1110 is obtained joins in this message, to make things convenient for MSC
IIIJudge itself and MSC
IVIt or not same switching equipment.Certainly, second generating apparatus 120 also can be with MSC
IVCharacteristic information with described judged result or replace this judged result to join in the described message, for MSC
IIIJudge itself and MSC
IVSame switching equipment whether.
Then, the second dispensing device 121 described MAP that will generate sends routing iinformation return results message and is sent to MSC
III, determine and MSC for it
IVBetween communication mode.
Consider another kind of situation, that is, judgment means 1110 judges whether source switching equipment and target exchange are that the resulting judged result of same switching equipment is: source switching equipment and target switching equipment are same switching equipment.Under this situation, the source switching equipment does not need to know the support characteristic of target switching equipment, therefore preferably, after judgment means 1110 is judged two switching equipment and is same switching equipment, notify described controlled definite device 1111 with judged result, controlled definite device 1111 passes to second generating apparatus, 120, the second generating apparatus 120 with described judged result as the relevant information of target switching equipment and generates MAP and send routing iinformation return results message, and adds described judged result therein.Alternatively, second generating apparatus 120 also can be with the characteristic information of target switching equipment with described judged result or replace this judged result to join in the described message, judge whether same switching equipment of itself and target switching equipment for the source switching equipment, and then definite communication mode.
Fig. 5 is for according to being used in the switching equipment of GSM network when described switching equipment is worked as the source switching equipment of a specific embodiment of the present invention, the method flow diagram of the communication mode between definite and target switching equipment.Below in conjunction with Fig. 2 and with reference to Fig. 5 this method is described.
When user terminal C to set up with user terminal D between communicate by letter the time, at first, user terminal C is to MSC
IIISend communication and set up request, receive the MSC that request is set up in described communication
IIIIn step S20, correspondingly generate MAP and send the routing iinformation request message, wherein comprise the number of user terminal D.When the switching equipment in the network all has different support characteristics to multiple signaling, also, both there had been the switching equipment of not supporting first kind signaling (as the SIP signaling) in the network, also there is the switching equipment of not supporting the second type signaling, and, if MSC
IIISupport first kind signaling also to support second type signaling, the then MSC
IIIThe described MAP that generates sends and also comprises in the routing iinformation request message and described first kind signaling and the corresponding respectively relevant information of the described second type signaling, is used to inform HLR
VWith regard to above-mentioned signaling to MSC
IVInquire about.Certainly, MSC
IIICan also optionally require HLR
VInquire about, at this moment, can comprise in the inquiry request message of described target location and described first kind signaling or the corresponding relevant information of the described second type signaling.Correspondingly, HLR
VFeedback in also should comprise the corresponding support characteristic of the signaling type indication information that sends appointment in the routing iinformation request message with MAP.
Then, in step S21, the described MAP that generates is sent the routing iinformation request message be sent to HLR
V
After this, HLR
VTo obtain the target switching equipment based on described MAP transmission routing iinformation request message is MSC
IVRelevant information, and send routing iinformation return results message feedback to MSC by MAP
III, in step S22, MSC
IIIReceive described MAP and send routing iinformation return results message.Different embodiment according to the subject invention, MSC
IIIFrom HLR
VThe MSC that the place obtains
IVRelevant information because of HLR
VThe place obtains MSC
IVThe mode of relevant information different and different, below divide the situation discussion:
Situation a:HLR
VDo not judge source switching equipment and target
Whether switching equipment is same switching equipment
At this moment, described MAP transmission routing iinformation return results message comprises instruct MS C
IVSupport characteristic indication information and MSC to communication mode
IVCharacteristic information.After in step S23, extracting above-mentioned information, in step S24, MSC
IIIAt first according to MSC
IVCharacteristic information judge itself and MSC
IVWhether is same switching equipment, in this specific embodiment, MSC will obtain following result of determination: MSC
IIIWith MSC
IVIt or not same switching equipment.So, MSC
IIIFurther according to instruct MS C
IVTo the support characteristic indication information of communication mode (as, with the corresponding territory of SIP signaling, its value representation " is not supported the SIP signaling " in the query response message of described target location).Learn MSC
IVDo not support the SIP signaling, MSC
IIITo communicate with by general signaling.
Consider another kind of situation (non-shown in Figure 2), when above-mentioned result of determination is source switching equipment and target switching equipment when being same switching equipment, those of ordinary skills can know thereafter processing mode based on prior art, do not repeat them here.
Situation b:HLR
VJudgement source switching equipment and target
Whether switching equipment same switching equipment
Embodiment as shown in Figure 2, the judged result of source switching equipment is that the target switching equipment is not same switching equipment, then the MSC in targeted customer's position enquiring response message
IVRelevant information will comprise: instruct MS C
IVTo the indication information of the support characteristic of communication mode, and MSC
IVCharacteristic information and/or the expression MSC
IIIWith MSC
IVIt or not the judged result of same switching equipment.
After in step S23, extracting above-mentioned relevant information, MSC
IIIIn step S24, determine and MSC
IVCommunication mode, particularly: at first according to MSC
IVCharacteristic information and/or the expression MSC
IIIWith MSC
IVNot that the judged result of same switching equipment is judged itself and MSC
IVWhether is same switching equipment, result of determination is for denying.Then, MSC
IIIFurther according to instruct MS C
IVThe indication information of the support characteristic of communication mode is determined itself and MSC
IVBetween communication mode, learn MSC
IVAfter not supporting the SIP signaling, MSC
IIITo communicate with by general signaling.
(non-shown in Figure 2) according to another embodiment of the present invention, HLR
VAfter obtaining source switching equipment and target switching equipment and being the judged result of same switching equipment, preferably the support characteristic of communication mode is not inquired about, send in the routing iinformation return results message and only need that the characteristic information of above-mentioned judged result and/or target switching equipment is joined the MAP that sends to the source switching equipment as the relevant information of target switching equipment with regard to the target switching equipment.After receiving this message, the source switching equipment is that the judged result of same switching equipment and/or the characteristic information of target switching equipment judge whether it is identical with the target switching equipment according to expression source switching equipment with the target switching equipment earlier, so, obtain the source switching equipment result of determination identical with the target switching equipment.Then, carry out subsequent operation based on prior art.
Fig. 6 is for according to being used in the switching equipment of GSM network when described switching equipment is worked as the source switching equipment of a specific embodiment of the present invention, the sources traffic equipment block diagram of the communication mode between definite and target switching equipment.Below in conjunction with Fig. 2 and with reference to Fig. 6 this device is described.
Shown in sources traffic equipment 2 comprise: generating apparatus 20, dispensing device 21, receiving system 22, extraction element 23 and definite device 24.For simplicity's sake, the sub-device that comprises of said apparatus is not shown in Figure 6.
When user terminal C to set up with user terminal D between communicate by letter the time, at first, user terminal C is to MSC
IIISend communication and set up request, receive the MSC that request is set up in described communication
IIICorrespondingly generate MAP by generating apparatus 20 and send the routing iinformation request message, wherein comprise the number of user terminal D.When the switching equipment in the network all has different support characteristics to multiple signaling, also, both there had been the switching equipment of not supporting first kind signaling (as the SIP signaling) in the network, also there is the switching equipment of not supporting the second type signaling, and, if MSC
IIISupport first kind signaling also to support the second type signaling, then also comprise and described first kind signaling and the corresponding respectively relevant information of the described second type signaling in the described MAP transmission routing iinformation request message that generating apparatus 20 generates, be used to inform HLR
VWith regard to the support characteristic of above-mentioned signaling to MSC
IVInquire about.Certainly, MSC
IIICan also optionally require HLR
VInquiry MSC
IVTo the support characteristic of a certain or multiple signaling type, at this moment, the described MAP that generating apparatus 20 generates sends in the routing iinformation request message and can comprise and described first kind signaling or the corresponding relevant information of the described second type signaling.
Then, the described MAP that will be generated by dispensing device 21 sends the routing iinformation request message and is sent to HLR
V
After this, HLR
VTo obtain the target switching equipment based on described MAP transmission routing iinformation request message is MSC
IVRelevant information, and send routing iinformation return results message feedback to MSC by MAP
III, receiving system 22 receives described MAP and sends routing iinformation return results message.Different embodiment according to the subject invention, MSC
IIIFrom HLR
VThe MSC that the place obtains
IVRelevant information because of HLR
VThe place obtains MSC
IVThe mode of relevant information different and different, below divide the situation discussion:
Situation a:HLR
VDo not judge source switching equipment and target
Whether switching equipment is same switching equipment
At this moment, described MAP transmission routing iinformation return results message comprises instruct MS C
IVSupport characteristic indication information and MSC to communication mode
IVCharacteristic information.After extraction element 23 extracts above-mentioned information, with described MSC
IVRelevant information pass to described definite device 24.Determine that device 24 is at first according to MSC
IVCharacteristic information judge MSC
IIIWith MSC
IVWhether is same switching equipment, in this specific embodiment, MSC will obtain following result of determination: MSC
IIIWith MSC
IVIt or not same switching equipment.So, determine that device 24 is further according to instruct MS C
IVTo the support characteristic indication information of communication mode (as, with the corresponding territory of SIP signaling, its value representation is not supported the SIP signaling in the query response message of described target location).Learn MSC
IVDo not support the SIP signaling, MSC
IIITo communicate with by general signaling.
Consider another kind of situation (non-shown in Figure 2), when above-mentioned result of determination is source switching equipment and target switching equipment when being same switching equipment, those of ordinary skills can know thereafter processing mode based on prior art, do not repeat them here.
Situation b:HLR judges source switching equipment and target
Whether switching equipment same switching equipment
Embodiment as shown in Figure 2, the judged result of source switching equipment is that the target switching equipment is not same switching equipment, then the MSC in targeted customer's position enquiring response message
IVRelevant information will comprise: instruct MS C
IVTo the indication information of the support characteristic of communication mode, and MSC
IVCharacteristic information and/or the expression MSC
IIIWith MSC
IVIt or not the judged result of same switching equipment.
Extraction element 23 passes to definite device 24 after extracting above-mentioned relevant information, based on above-mentioned relevant information, determines device 24 definite MSC
IIIWith MSC
IVCommunication mode, particularly: at first according to MSC
IVCharacteristic information and/or the expression MSC
IIIWith MSC
IVNot that the judged result of same switching equipment is judged itself and MSC
IVWhether is same switching equipment, result of determination is for denying.Then, MSC
IIIFurther according to instruct MS C
IVThe indication information of the support characteristic of communication mode is determined itself and MSC
IVBetween communication mode, learn MSC
IVAfter not supporting the SIP signaling, MSC
IIITo utilize general signaling to communicate with.
(non-shown in Figure 2) according to another embodiment of the present invention, after HLR obtains source switching equipment and target switching equipment and is the judged result of same switching equipment, preferably the support characteristic of communication mode is not inquired about, send in the routing iinformation return results message and only need that the characteristic information of above-mentioned judged result and/or target switching equipment is joined the MAP that sends to the source switching equipment as the relevant information of target switching equipment with regard to the target switching equipment.Determine that it is that the judged result of same switching equipment and/or the characteristic information of target switching equipment judge whether the source switching equipment is identical with the target switching equipment with the target switching equipment that device sends the expression source switching equipment that extracts the routing iinformation return results message according to extraction element from MAP, so, obtain the source switching equipment result of determination identical with the target switching equipment.Then, carry out subsequent operation based on prior art.
Fig. 7 assists the method flow diagram of the communication mode between definite and source switching equipment for according to being used for when described switching equipment work as the target switching equipment of a specific embodiment of the present invention in the switching equipment of GSM network.
In step S30, MSC
IVReception is from HLR
VThe MAP request message that Provides Roaming Number.According to a specific embodiment of the present invention, when the switching equipment in the network all has different support characteristics to multiple signaling, also be, both there had been the switching equipment of not supporting first kind signaling (as the SIP signaling) in the network, also there is the switching equipment of not supporting the second type signaling, and, if MSC
IIISupport first kind signaling also to support the second type signaling, HLR
VThe described MAP that sends Provides Roaming Number, and request message will preferably comprise and described first kind signaling and the corresponding relevant information of described second type signaling difference, be used to inform MSC
IVWith regard to its to the support characteristic of above-mentioned signaling type to HLR
VFeed back.Certainly, also can be optionally to MSC
IVSupport characteristic at some signaling type is inquired about, and then described MAP Provides Roaming Number and can comprise and described first kind signaling or the corresponding relevant information of the described second type signaling in the request message.
In step S31, MSC
IVTo from HLR
VThe target information inquiry request message respond, particularly, the MAP that its indication information to the support characteristic of concrete one or more signaling types (as the SIP signaling) of mentioning in this request message of indication can be joined generation Provides Roaming Number in the return results message;
In step S32, MSC
IVThe described MAP that the generates return results message that Provides Roaming Number is sent to HLR
V
Fig. 8 assists the target communication device block diagram of the communication mode between definite and source switching equipment for according to being used for when described switching equipment work as the target switching equipment of a specific embodiment of the present invention in the switching equipment of GSM network.
Target communication device shown in the figure 3 comprises: receiving system 30, generating apparatus 31 and dispensing device 32.
Described receiving system 30 receives from HLR
VThe MAP request message that Provides Roaming Number.According to a specific embodiment of the present invention, when the switching equipment in the network all has different support characteristics to multiple signaling, also be, both there had been the switching equipment of not supporting first kind signaling (as the SIP signaling) in the network, also there is the switching equipment of not supporting the second type signaling, and, if MSC
IIISupport first kind signaling also to support the second type signaling, HLR
VThe described target information inquiry request message of sending will preferably comprise and described first kind signaling and the corresponding respectively relevant information of the described second type signaling, be used to inform MSC
IVWith regard to its to the support characteristic of above-mentioned signaling type to HLR
VFeed back.Certainly, also can optionally require MSC
IVFeed back, can comprise in the then described target information inquiry request message and described first kind signaling or the corresponding relevant information of the described second type signaling.
Next, MSC
IVWill be to from HLR
VThe MAP request message that Provides Roaming Number respond, particularly, generating apparatus 31 is with instruct MS C
IVThe MAP that the indication information of the support characteristic of concrete one or more signaling types (as the SIP signaling) of mentioning in this request message is joined generation Provides Roaming Number in the return results message, and passes to described dispensing device 32;
After this, the described MAP that will be generated by the dispensing device 32 return results message that Provides Roaming Number sends to HLR
V
According to another specific embodiment of the present invention, suppose that the source switching equipment only supports general signaling, then the source switching equipment only need know that the relation of itself and target switching equipment can determine the communication mode (general signaling only being arranged because optionally consult used signaling type) between itself and target switching equipment.Particularly, the source switching equipment is by representing itself and target the switching equipment whether judged result of same switching equipment and/or the characteristic information of this target switching equipment with the mutual acquisition of HLR, to judge whether same switching equipment of itself and target switching equipment, if result of determination is a "Yes", then can carry out subsequent step based on the technical scheme of prior art, if result of determination is a "No", then hold consultation by general signaling and described target switching equipment.
More than embodiments of the invention are described, but the present invention is not limited to specific system, equipment and concrete agreement, those skilled in that art can make various distortion or modification within the scope of the appended claims.