CN100466639C - Method for realizing two-directional interacting of circuit zone and grouping zone, and system therefor - Google Patents

Method for realizing two-directional interacting of circuit zone and grouping zone, and system therefor Download PDF

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Publication number
CN100466639C
CN100466639C CNB2005100787501A CN200510078750A CN100466639C CN 100466639 C CN100466639 C CN 100466639C CN B2005100787501 A CNB2005100787501 A CN B2005100787501A CN 200510078750 A CN200510078750 A CN 200510078750A CN 100466639 C CN100466639 C CN 100466639C
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network
dual
circuit
mode terminal
domain
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CN1852269A (en
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刘文宇
徐杰
尤昉
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2006/001366 priority patent/WO2006136089A1/en
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Abstract

Being applicable to system of containing network in circuit domain and network in packet domain, the disclosed system includes interoperation gateway. Being connected to network in circuit domain and network in packet domain, the said interoperation gateway possesses functions: in use for storing information of network the terminal in dual mode locates at, and calling state; based on the said information, forward shifting the said information of network in circuit domain to network in packet domain; or through network in packet domain, informing the terminal in dual mode that there are system message or paging message in circuit domain; or forward shifting the said information in network in packet domain through calling to network in circuit domain; or through network in circuit domain, informing the terminal in dual mode that there are said information in packet domain. The invention also discloses method for terminals in packet domain to implement service in circuit domain.

Description

Realize the method and system of circuit domain and packet domain bidirectional alternative operation
Technical field
The present invention relates to the cdma2000 technical field, be meant a kind of method and system that in cdma2000, realize circuit domain and packet domain bidirectional alternative operation especially, realize that circuit domain and packet domain bidirectional alternative operation are meant that terminal can receive packet switch domain service in residing in circuit domain, and the terminal that resides in the packet domain can receiving circuit territory business.
Background technology
In dma2000 1x network, if portable terminal (MS) carries out business in packet domain, circuit-domain network may exist the system message of this MS or beep-page message etc., otherwise, if also having packet traffic flows in circuit domain, MS need be handed down to MS.But, in above-mentioned network frame, when portable terminal carries out business in packet domain, system message and beep-page message that can't the monitoring circuit territory.When in the user is in circuit domain, carrying out business, also but can't monitor the system message and the beep-page message of packet field network.Therefore, may be owing to monitoring the business that makes the user miss packet domain.
Certainly, in order to realize interoperability, the cross-paging model has been proposed in succession and improve after the cross-paging model, such as, in the cross-paging model after improvement, utilization further increases IWS function (Functin) in MSC, the portable terminal that utilizes this function to make to be in activated state in the packet domain can receive the system message and the beep-page message of circuit domain, but can't make the terminal of carrying out business in the circuit domain carry out packet switch domain service, and this mode also needs existing Access Network and circuit-domain network are made improvements, implement also more complicated, be unfavorable for the demand of low-cost networking.The problem that also has the common planning of DO and 1x needs has increased the difficulty of planning greatly.
Summary of the invention
In view of this, first purpose of the present invention is to provide a kind of dual-mode terminal of realizing residing in the circuit domain to receive the method for packet switch domain service, makes the dual-mode terminal that carries out business in circuit domain can carry out packet switch domain service.
Second purpose of the present invention is to provide a kind of method that realizes residing in the dual-mode terminal receiving circuit territory business in the packet domain, makes the dual-mode terminal that carries out business in packet domain can carry out circuit domain business.
The 3rd purpose of the present invention provides a kind of system that realizes circuit domain and packet domain bidirectional alternative operation, make it not need conventional network equipment is improved, can in packet domain, be in the terminal receiving circuit domain system message and the beep-page message of activated state, and in circuit domain, carry out professional terminal and can carry out packet switch domain service.
In order to realize above-mentioned first purpose, the method that a kind of dual-mode terminal of realizing residing in the circuit domain provided by the invention receives packet switch domain service is achieved in that
A kind of method that realizes residing in the dual-mode terminal receiving circuit territory Network of packet field network, be applied to comprise in the network of circuit domain and packet domain, an interoperability gateway is set, difference connecting circuit territory network and packet field network, this method is further comprising the steps of:
A. in the interoperability gateway, preserve current network of living in of dual-mode terminal and current call status information, and contracted user's information is set in circuit-domain network;
B. when circuit-domain network defines system message or beep-page message and is handed down to dual-mode terminal, judge according to the CAMEL-Subscription-Information of self preserving whether this dual-mode terminal is the contracted user, if, then trigger the interoperability gateway, this system message or beep-page message are sent to the interoperability gateway;
C. the interoperability gateway is determined the current network of living in of this dual-mode terminal, if dual-mode terminal is in packet field network, the interoperability gateway forwards packet field network to before with the system message of this circuit-domain network or beep-page message, or notifies this dual-mode terminal in circuit-domain network system message or beep-page message to be arranged.
The step of preserving current network of living in of dual-mode terminal and current call status information among the step a in this interoperability gateway is:
Dual-mode terminal and interoperability gateway be signing service in advance; In packet field network, when dual-mode terminal initiate to be registered, carry out in the packet field network business procedure and when withdrawing from packet field network, this dual-mode terminal initiatively sends current network of living in and current call status information to signatory interoperability gateway, and the interoperability gateway is preserved current network of living in of this dual-mode terminal of receiving and current call status information again;
Or, in circuit-domain network, when dual-mode terminal makes a call/session foundation request as caller, or as the called passive call/session of setting up, or in the laggard industry affair process that connects, or stop business, when disconnect connecting, circuit-domain network sends the current call status information of this dual-mode terminal to the interoperability gateway, the interoperability gateway utilizes the current call status information of this dual-mode terminal, upgrades the User Identity of this dual-mode terminal place network of being preserved and the corresponding relation of call state;
Or, in circuit-domain network, the current call status information of this dual-mode terminal be by the attaching position register in the circuit-domain network by and the interoperability gateway between interface send to the interoperability gateway; Or after receiving various message by the mobile switching centre in the circuit-domain network, in normal process, determine the call state of this dual-mode terminal, and send its current call status information to the interoperability gateway at this dual-mode terminal; Or in circuit-domain network, directly will all send to the interoperability gateway at all message of this dual-mode terminal by mobile switching centre, determine and preserve the call state of this dual-mode terminal by the interoperability gateway.
If dual-mode terminal is in circuit-domain network, then notify mobile switching centre to handle according to normal existing procedure.
Described call state is Idle state, access attitude or conversation state.
Step c comprises:
C1, interoperability gateway notify by packet field network that the user is current to have system message or beep-page message in circuit-domain network, and offer the user and can will forward packet field network before system message or the beep-page message to and at circuit-domain network receiving system message or two kinds of selection modes of beep-page message;
C2, after the interoperability gateway receives user's selection result, if the user selects and will forward packet field network to before system message or the beep-page message, the interoperability gateway then will forward packet field network to before this system message or the beep-page message, if the user is chosen in circuit-domain network and receives this system message or beep-page message, interoperability gateway then announcing circuit territory network keeps this system message or beep-page message, treat that this dual-mode terminal is resident after circuit-domain network, be handed down to this multimode terminal.
In order to realize above-mentioned second purpose, a kind of method that resides in the dual-mode terminal receiving circuit territory business in the packet domain that realizes provided by the invention is achieved in that
A kind of dual-mode terminal of realizing residing in the circuit-domain network receives the method for packet field network business, and an interoperability gateway is set, difference connecting circuit territory and packet field network, and this method is further comprising the steps of:
A. in the interoperability gateway, preserve current network of living in of dual-mode terminal and current call status information, and contracted user's information is set at packet field network;
B. when packet field network defines system message or beep-page message and is handed down to dual-mode terminal, judge according to the CAMEL-Subscription-Information of self preserving whether this dual-mode terminal is two network roaming contracted users, if then trigger the interoperability gateway;
C. the interoperability gateway is determined the current place of this dual-mode terminal network, if the current circuit-domain network that is in of this dual-mode terminal, then will forward circuit-domain network to before this system message or the beep-page message, or notify this dual-mode terminal packet field network that system message or beep-page message are arranged by circuit-domain network.
The step of preserving current network of living in of dual-mode terminal and current call status information among the step a in this interoperability gateway is:
Dual-mode terminal and interoperability gateway be signing service in advance; In packet field network, when dual-mode terminal initiate to be registered, carry out in the packet field network business procedure and when withdrawing from packet field network, this dual-mode terminal initiatively sends current network of living in and current call status information to signatory interoperability gateway, and the interoperability gateway is preserved current network of living in of this dual-mode terminal of receiving and current call status information again;
Or, in circuit-domain network, when dual-mode terminal makes a call/session foundation request as caller, or as the called passive call/session of setting up, or in the laggard industry affair process that connects, or stop business, when disconnect connecting, circuit-domain network sends the current call status information of this dual-mode terminal to the interoperability gateway, the interoperability gateway utilizes the current call status information of this dual-mode terminal, upgrades the User Identity of this dual-mode terminal place network of being preserved and the corresponding relation of call state;
Or, in circuit-domain network, the current call status information of this dual-mode terminal be by the attaching position register in the circuit-domain network by and the interoperability gateway between interface send to the interoperability gateway; Or after receiving various message by the mobile switching centre in the circuit-domain network, in normal process, determine the call state of this dual-mode terminal, and send its current call status information to the interoperability gateway at this dual-mode terminal; Or in circuit-domain network, directly will all send to the interoperability gateway at all message of this dual-mode terminal by mobile switching centre, determine and preserve the call state of this dual-mode terminal by the interoperability gateway.
If this dual-mode terminal is in circuit-domain network among the step c, then step c further comprises:
Whether interoperability gateway decision circuitry territory network can carry system message or the beep-page message that packet field network is handed down to this dual-mode terminal, if can, then will go to circuit-domain network before the system message of packet field network or the beep-page message, if cannot, then notify this dual-mode terminal packet field network that system message or beep-page message are arranged by circuit-domain network.
Step c comprises:
C1, interoperability gateway notify by circuit-domain network that the user is current to have system message or beep-page message at packet field network, and offer the user and can will forward circuit-domain network before system message or the beep-page message to and at packet field network receiving system message or two kinds of selection modes of beep-page message;
C2, after the interoperability gateway receives user's selection result, if the user selects and will forward circuit-domain network to before system message or the beep-page message, the interoperability gateway then will forward circuit-domain network to before this system message or the beep-page message, if the user is chosen in packet field network and receives this system message or beep-page message, interoperability gateway then notice packet territory network keeps this system message or beep-page message, treat that this dual-mode terminal is resident behind packet field network, be handed down to this multimode terminal.
Described call state is Idle state, access attitude or conversation state.
In order to realize above-mentioned the 3rd purpose, provided by the inventionly a kind ofly realize that the system of circuit domain and packet domain bidirectional alternative operation is such realization:
A kind of system that realizes two net interoperability is applied to comprise in the system of circuit-domain network and packet field network, also comprises:
The interoperability gateway, link to each other with packet field network with circuit-domain network, be used to preserve current network of living in of dual-mode terminal and call status information, and according to current network of living in of dual-mode terminal and call status information, to before the system message of circuit-domain network or beep-page message, forward packet field network to, or notify this dual-mode terminal system message or beep-page message to be arranged in circuit-domain network by packet field network; Or with the system message of packet field network or beep-page message Call Forwarding to circuit-domain network, or notify this dual-mode terminal packet field network that system message or beep-page message are arranged by circuit-domain network.
Described interoperability gateway further comprises interface, is used to receive the current call status information of the dual-mode terminal transmission of contracting with the interoperability gateway in the packet field network;
Described interoperability gateway links to each other with attaching position register in the circuit-domain network, is used to receive multimode terminal that attaching position register the sends call status information in circuit-domain network; Or,
Described interoperability gateway links to each other with mobile switching centre in the circuit-domain network, is used to receive multimode terminal that mobile switching centre the sends call status information in circuit-domain network; Or,
Described interoperability gateway links to each other with mobile switching centre in the circuit-domain network, is used to receive the calling at multimode terminal that mobile switching centre sends, and calls out the call status information of determining and preserving dual-mode terminal according to this.
The interoperability gateway, be further used for being provided at that circuit-domain network receives or packet field network receives the selection of current system message or beep-page message to dual-mode terminal by the current place of dual-mode terminal network domains, after the selection of receiving dual-mode terminal, give this dual-mode terminal transmitting system message or beep-page message according to selection result.
Method of the present invention is used to preserve the interoperability gateway of the current call state of dual-mode terminal by increase, dual-mode terminal receives packet switch domain service in the circuit domain thereby realized residing in, and realized residing in dual-mode terminal receiving circuit territory business in the packet domain, can make the user can not lose any one important calling, thoroughly solve the problem of two net interoperability.And method of the present invention does not need available circuit territory network is made bigger change, saves networking cost, realizes simple.
Description of drawings
Fig. 1 is for realizing the networking structure schematic diagram of system of the present invention;
Fig. 2 is the structural representation of the embodiment of realization system of the present invention;
Fig. 3 carries out the flow chart that professional terminal realizes circuit domain business for the present invention in packet domain;
Fig. 4 carries out the flow chart that professional terminal realizes packet switch domain service for the present invention in circuit domain.
Embodiment
Referring to shown in Figure 1, in order to realize the bidirectional alternative operation of circuit domain and packet domain, the present invention has increased a network entity, and promptly interoperability gateway (IWGW, Interworking Gateway) links to each other with packet field network with circuit-domain network.The interoperability gateway need write down dual-mode terminal current place network and call status information, provide this dual-mode terminal of circuit-domain network or packet field network current call status information, so that how circuit-domain network or packet field network decision handle system message and beep-page message at this dual-mode terminal.
Here, the call state of terminal can be Idle state, access attitude or conversation state.Idle state is meant the state the when user does not carry out any operation; Insert attitude and be meant as the user and begin to attempt the request of making a call up to connecting, but the state of the other side before not replying; Conversation state is meant the state when the user sets up call/session connection back connection phone.
In circuit domain, IWGW is equivalent to the signatory SCP SERVER of a dual-mode subscriber, is used for the current call state of recording user in circuit domain, inquires about this network entity, can get access to user's call state, to determine whether that further can receive packet domain calls out.In packet domain, IWGW is equivalent to the signatory AS of a dual-mode subscriber, multimode terminal is in registration, when nullifying, initiating service request or receiving service request, all need to be triggered to IWGW, inquire about IWGW like this, can know clearly the call state of user, certainly, can determine also whether the user can call out in the receiving circuit territory in packet domain.
And the implementation method of preserving current network of living in of multimode terminal and current call state among the IWGW has multiple, and mode can be different in the heterogeneous networks territory.
The first, dual-mode terminal is in packet domain, and IWGW preserves the method for current network of living in of multimode terminal and current call state:
This mode needs dual-mode terminal and IWGW signing service in advance, and dual-mode terminal utilizes the existing business (prensence) that presents to communicate with IWGW.In dual-mode terminal resides in packet field network, promptly comprise when initiate registering, carry out in the packet switch domain service process and when withdrawing from packet field network, this dual-mode terminal is all wanted initiatively to send current network of living in and current call status information to signatory IWGW, and IWGW preserves current network of living in of this dual-mode terminal of receiving and current call status information again.
The second, dual-mode terminal is in circuit domain, and IWGW preserves the method for current network of living in of multimode terminal and current call state:
In circuit-domain network, when dual-mode terminal makes a call/session foundation request as caller, or as the called passive call/session of setting up, or in the laggard industry affair process that connects, or stop business, when disconnect connecting, circuit-domain network all will send the current call status information of this dual-mode terminal to the interoperability gateway, the interoperability gateway utilizes the current call status information of this dual-mode terminal, upgrades the User Identity of this dual-mode terminal place network of being preserved and the corresponding relation of call state.
In the specific implementation process, because after receiving information such as user's registration that MSC sends, de-registration request, position renewal in the circuit domain among the HLR, to write down active user's information, comprise the current call state of user etc., therefore, after HLR obtains active user's information at every turn, can send active user's call state to IWGW, after IWGW received, record IWGW is current to be in circuit domain and at the call state of circuit domain.Certainly, also can by MSC under the multimode terminal after the various message of receiving at this dual-mode terminal, in normal process, determine the call state of this dual-mode terminal, and send its current call status information etc. to IWGW.Also can directly will all send to IWGW by MSC, determine and preserve the call state of this dual-mode terminal by IWGW at all message of this dual-mode terminal.
Comprise that the terminal that resides in the circuit domain receives packet switch domain service owing to realize circuit domain and packet domain bidirectional alternative operation, and reside in the terminal receiving circuit territory business in the packet domain, therefore, below technical scheme of the present invention is described respectively from above-mentioned two aspects.
Referring to shown in Figure 2, in the present embodiment, system of the present invention comprises circuit-domain network and packet field network and IWGW.Wherein, circuit-domain network comprises X-CSCF, MGCF/MGW, AGW at least, and circuit-domain network comprises that GMSC links to each other with MSC, and the MGCF/MGW of packet field network links to each other with GMSC in the circuit domain.IWGW connects X-CSCF in the packet domain and the MSC in the circuit domain respectively.IWGW further comprises interface, is used to receive and preserve the current call status information of the dual-mode terminal transmission of contracting with IWGW in the packet domain.Described IWGW links to each other with HLR in the circuit-domain network, is used to receive multimode terminal that HLR the sends call status information in circuit domain.Certainly, IWGW also can be used to receive and preserve the call status information of the multimode terminal of MSC transmission in circuit domain, also can be used to receive the calling that mobile switching centre sends, and call out the call status information of determining and preserving dual-mode terminal according to this at multimode terminal.
One, resides in the method for the terminal receiving circuit territory business in the packet domain.
Referring to shown in Figure 3, the method that the present invention resides in the terminal receiving circuit territory business in the packet domain specifically may further comprise the steps:
Step 300: contracted user's information is set in circuit-domain network.
Step 301: when circuit-domain network defines system message or beep-page message and is handed down to dual-mode terminal, judge according to the CAMEL-Subscription-Information of self preserving whether this dual-mode terminal is the contracted user, if, then trigger the interoperability gateway, notifying operation gateway packet domain has system message or beep-page message calling double-mode terminal, and with system message or beep-page message send to operating gateway if not, then jump out this flow process;
Step 302: the information that the inquiry of interoperability gateway self is preserved, determine the current network of living in of this dual-mode terminal, if the current packet field network that is in of this dual-mode terminal, then the interoperability gateway forwards packet field network to before with the system message of this circuit-domain network or beep-page message, also can notify this dual-mode terminal system message or beep-page message to be arranged in circuit domain, if dual-mode terminal is in circuit-domain network, then interoperability gateway announcing circuit territory network is handled according to existing procedure.
In the specific implementation process, the interoperability gateway can notify also that the user is current to have system message or beep-page message in circuit domain by packet domain, and offer this processing mode of user, that is: will forward packet domain to before system message or the beep-page message, and at circuit domain receiving system message or beep-page message.After the user selects a kind of processing mode, selected result is sent to IWGW, if the user selects and will forward packet domain before the beep-page message to, IWGW then will forward packet domain to before this system message or the beep-page message, if the user is chosen in circuit domain and receives this message, IWGW then announcing circuit territory keeps this system message or beep-page message, treats that this dual-mode terminal is resident after circuit-domain network, is handed down to this multimode terminal.
Two, reside in the process of the terminal reception packet switch domain service in the circuit domain.
Referring to shown in Figure 4, the method that resides in the terminal reception packet switch domain service in the circuit domain may further comprise the steps:
Step 400: contracted user's information is set at packet field network.
Step 401: when the X-CSCF in the packet field network defines system message or beep-page message and is handed down to dual-mode terminal, judge according to the CAMEL-Subscription-Information of self preserving whether this dual-mode terminal is the contracted user, if, then trigger the interoperability gateway, notifying operation gateway packet domain has system message or beep-page message calling double-mode terminal, and system message or beep-page message sent to operating gateway, if not, jump out this flow process;
Step 402: the information that the inquiry of interoperability gateway self is preserved, determine the current place of this dual-mode terminal network, if be in packet field network, then notify X-CSCF to handle according to existing flow process, process ends, if be in circuit-domain network, then will forward circuit-domain network to before this system message or the beep-page message, or notify this dual-mode terminal packet domain that system message or paging request are arranged by circuit-domain network.
Preferably, can preserve the traffic type information that circuit-domain network is supported in advance at the interoperability gateway, in step 402, if determine the current circuit-domain network that is in of dual-mode terminal, whether interoperability gateway further decision circuitry territory network supports to be handed down in the packet domain system message or the beep-page message of this dual-mode terminal, if support, then will forward circuit-domain network to before the system message of packet field network or the beep-page message, be handed down to this dual-mode terminal by circuit-domain network again, if do not support, then notify this dual-mode terminal packet domain that the paging request is arranged by circuit-domain network.
Certainly, also can earlier two kinds of processing modes all be offered the user, offer the user and select, and the user notify IWGW with selected mode by circuit domain.If the user selects and will forward circuit-domain network to before system message or the beep-page message, IWGW arrives circuit-domain network with this message forwarding again, by circuit-domain network this beep-page message is handed down to this dual-mode terminal.If the user chooses packet domain receiving system message or beep-page message, IWGW then notice packet territory searches for multimode terminal always, and after multimode terminal came back to packet domain, packet domain was handed down to this multimode terminal with system message or beep-page message again.
From such scheme as can be known, because the user is at the signatory IN service of circuit domain, the intelligent server that the user contracts is IWGW, therefore, in circuit domain, at all callings of this dual-mode terminal, circuit domain all can be triggered to IWGW, because IWGW has write down the current call state of this dual-mode terminal, therefore, IWGW can determine how to handle the message at this dual-mode terminal according to the current call state of this dual-mode terminal, be in the packet domain if this dual-mode terminal is current, IWGW then with this Call Forwarding in packet domain.Be in the circuit domain if this dual-mode terminal is current, IWGW then returns to circuit domain with this calling, and handle according to existing procedure in the announcing circuit territory.
Need to prove, above-mentioned realization Call Forwarding, soon forward circuit domain to before the system message of packet domain or the beep-page message, by circuit domain this system message or beep-page message are sent to this dual-mode terminal again, perhaps, with forwarding packet domain to before the system message of circuit domain or the beep-page message, by packet domain this system message or beep-page message are sent to this dual-mode terminal again.If dual-mode terminal is in packet domain and be a Subscriber Number in the circuit domain, the number of so above-mentioned realization Call Forwarding is the Subscriber Number of this dual-mode terminal, if dual-mode terminal in packet domain be two different Subscriber Numbers in the circuit domain, the number of then realizing Call Forwarding be dual-mode terminal the Subscriber Number in the network domains of changeing before wanting add a special prefix, after network domains is received this number, remove prefix, this system message or beep-page message are sent to dual-mode terminal by this territory.

Claims (13)

1, a kind of method that realizes residing in the dual-mode terminal receiving circuit territory Network of packet field network, be applied to comprise in the network of circuit domain and packet domain, it is characterized in that, an interoperability gateway is set, difference connecting circuit territory network and packet field network, this method is further comprising the steps of:
A. in the interoperability gateway, preserve current network of living in of dual-mode terminal and current call status information, and contracted user's information is set in circuit-domain network;
B. when circuit-domain network defines system message or beep-page message and is handed down to dual-mode terminal, judge according to the CAMEL-Subscription-Information of self preserving whether this dual-mode terminal is the contracted user, if, then trigger the interoperability gateway, this system message or beep-page message are sent to the interoperability gateway;
C. the interoperability gateway is determined the current network of living in of this dual-mode terminal, if dual-mode terminal is in packet field network, the interoperability gateway forwards packet field network to before with the system message of this circuit-domain network or beep-page message, or notifies this dual-mode terminal in circuit-domain network system message or beep-page message to be arranged.
2, method according to claim 1 is characterized in that, the step of preserving current network of living in of dual-mode terminal and current call status information among the step a in this interoperability gateway is:
Dual-mode terminal and interoperability gateway be signing service in advance; In packet field network, when dual-mode terminal initiate to be registered, carry out in the packet field network business procedure and when withdrawing from packet field network, this dual-mode terminal initiatively sends current network of living in and current call status information to signatory interoperability gateway, and the interoperability gateway is preserved current network of living in of this dual-mode terminal of receiving and current call status information again;
Or, in circuit-domain network, when dual-mode terminal makes a call/session foundation request as caller, or as the called passive call/session of setting up, or in the laggard industry affair process that connects, or stop business, when disconnect connecting, circuit-domain network sends the current call status information of this dual-mode terminal to the interoperability gateway, the interoperability gateway utilizes the current call status information of this dual-mode terminal, upgrades the User Identity of this dual-mode terminal place network of being preserved and the corresponding relation of call state;
Or, in circuit-domain network, the current call status information of this dual-mode terminal be by the attaching position register in the circuit-domain network by and the interoperability gateway between interface send to the interoperability gateway; Or after receiving various message by the mobile switching centre in the circuit-domain network, in normal process, determine the call state of this dual-mode terminal, and send its current call status information to the interoperability gateway at this dual-mode terminal; Or in circuit-domain network, directly will all send to the interoperability gateway at all message of this dual-mode terminal by mobile switching centre, determine and preserve the call state of this dual-mode terminal by the interoperability gateway.
3, method according to claim 1 is characterized in that, in step c, if dual-mode terminal is in circuit-domain network, then notifies mobile switching centre to handle according to normal existing procedure.
4, method according to claim 1 is characterized in that, described call state is Idle state, access attitude or conversation state.
5, method according to claim 1 is characterized in that, step c comprises:
C1, interoperability gateway notify by packet field network that the user is current to have system message or beep-page message in circuit-domain network, and offer the user and can will forward packet field network before system message or the beep-page message to and at circuit-domain network receiving system message or two kinds of selection modes of beep-page message;
C2, after the interoperability gateway receives user's selection result, if the user selects and will forward packet field network to before system message or the beep-page message, the interoperability gateway then will forward packet field network to before this system message or the beep-page message, if the user is chosen in circuit-domain network and receives this system message or beep-page message, interoperability gateway then announcing circuit territory network keeps this system message or beep-page message, treat that this dual-mode terminal is resident after circuit-domain network, be handed down to this multimode terminal.
6, a kind of dual-mode terminal of realizing residing in the circuit-domain network receives the method for packet field network business, it is characterized in that, an interoperability gateway is set, difference connecting circuit territory and packet field network, and this method is further comprising the steps of:
A. in the interoperability gateway, preserve current network of living in of dual-mode terminal and current call status information, and contracted user's information is set at packet field network;
B. when packet field network defines system message or beep-page message and is handed down to dual-mode terminal, judge according to the CAMEL-Subscription-Information of self preserving whether this dual-mode terminal is two network roaming contracted users, if then trigger the interoperability gateway;
C. the interoperability gateway is determined the current place of this dual-mode terminal network, if the current circuit-domain network that is in of this dual-mode terminal, then will forward circuit-domain network to before this system message or the beep-page message, or notify this dual-mode terminal packet field network that system message or beep-page message are arranged by circuit-domain network.
7, method according to claim 6 is characterized in that, the step of preserving current network of living in of dual-mode terminal and current call status information among the step a in this interoperability gateway is:
Dual-mode terminal and interoperability gateway be signing service in advance; In packet field network, when dual-mode terminal initiate to be registered, carry out in the packet field network business procedure and when withdrawing from packet field network, this dual-mode terminal initiatively sends current network of living in and current call status information to signatory interoperability gateway, and the interoperability gateway is preserved current network of living in of this dual-mode terminal of receiving and current call status information again;
Or, in circuit-domain network, when dual-mode terminal makes a call/session foundation request as caller, or as the called passive call/session of setting up, or in the laggard industry affair process that connects, or stop business, when disconnect connecting, circuit-domain network sends the current call status information of this dual-mode terminal to the interoperability gateway, the interoperability gateway utilizes the current call status information of this dual-mode terminal, upgrades the User Identity of this dual-mode terminal place network of being preserved and the corresponding relation of call state;
Or, in circuit-domain network, the current call status information of this dual-mode terminal be by the attaching position register in the circuit-domain network by and the interoperability gateway between interface send to the interoperability gateway; Or after receiving various message by the mobile switching centre in the circuit-domain network, in normal process, determine the call state of this dual-mode terminal, and send its current call status information to the interoperability gateway at this dual-mode terminal; Or in circuit-domain network, directly will all send to the interoperability gateway at all message of this dual-mode terminal by mobile switching centre, determine and preserve the call state of this dual-mode terminal by the interoperability gateway.
8, method according to claim 6 is characterized in that, if this dual-mode terminal is in circuit-domain network among the step c, then step c further comprises:
Whether interoperability gateway decision circuitry territory network can carry system message or the beep-page message that packet field network is handed down to this dual-mode terminal, if can, then will go to circuit-domain network before the system message of packet field network or the beep-page message, if cannot, then notify this dual-mode terminal packet field network that system message or beep-page message are arranged by circuit-domain network.
9, method according to claim 6 is characterized in that, step c comprises:
C1, interoperability gateway notify by circuit-domain network that the user is current to have system message or beep-page message at packet field network, and offer the user and can will forward circuit-domain network before system message or the beep-page message to and at packet field network receiving system message or two kinds of selection modes of beep-page message;
C2, after the interoperability gateway receives user's selection result, if the user selects and will forward circuit-domain network to before system message or the beep-page message, the interoperability gateway then will forward circuit-domain network to before this system message or the beep-page message, if the user is chosen in packet field network and receives this system message or beep-page message, interoperability gateway then notice packet territory network keeps this system message or beep-page message, treat that this dual-mode terminal is resident behind packet field network, be handed down to this multimode terminal.
10, method according to claim 6 is characterized in that, described call state is Idle state, access attitude or conversation state.
11, a kind of system that realizes two net interoperability is applied to comprise in the system of circuit-domain network and packet field network, it is characterized in that, also comprises:
The interoperability gateway, link to each other with packet field network with circuit-domain network, be used to preserve current network of living in of dual-mode terminal and call status information, and according to current network of living in of dual-mode terminal and call status information, to before the system message of circuit-domain network or beep-page message, forward packet field network to, or notify this dual-mode terminal system message or beep-page message to be arranged in circuit-domain network by packet field network; Or with the system message of packet field network or beep-page message Call Forwarding to circuit-domain network, or notify this dual-mode terminal packet field network that system message or beep-page message are arranged by circuit-domain network.
12, system according to claim 11 is characterized in that, described interoperability gateway further comprises interface, is used to receive the current call status information of the dual-mode terminal transmission of contracting with the interoperability gateway in the packet field network;
Described interoperability gateway links to each other with attaching position register in the circuit-domain network, is used to receive multimode terminal that attaching position register the sends call status information in circuit-domain network; Or,
Described interoperability gateway links to each other with mobile switching centre in the circuit-domain network, is used to receive multimode terminal that mobile switching centre the sends call status information in circuit-domain network; Or,
Described interoperability gateway links to each other with mobile switching centre in the circuit-domain network, is used to receive the calling at multimode terminal that mobile switching centre sends, and calls out the call status information of determining and preserving dual-mode terminal according to this.
13, system according to claim 11, it is characterized in that, the interoperability gateway, be further used for being provided at that circuit-domain network receives or packet field network receives the selection of current system message or beep-page message to dual-mode terminal by the current place of dual-mode terminal network domains, after the selection of receiving dual-mode terminal, give this dual-mode terminal transmitting system message or beep-page message according to selection result.
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