A method and system for realizing continuous voice call in emergent service

The device for realizing voice call continuous method and system in the emergency services

technical field

The invention relates to communication, relates to realize the voice call continuous method and system in the emergency services special.

background technology

The, the communication claims voice call continuous concept, comprising a signing IP multimedia subsystem (IMS) application service user ownership domain. So-called IMS of IP multimedia subsystems of third-generation mobile communication standardization partner program of 3GPP) definition standard, is a third-generation mobile communication system (3G) mobile network realizing voice packet and packet data, providing unified the target network of the multimedia service and application.

A IMS domain circuit and switching at the same time domain the access ability user calling is VCC user terminal (UE). The general voice call service continuity, the UE and vibrates or calling for receiving flowing the first fixer to the UE ownership IMS domain with a domain switching control function VCC application server, is here an anchor to VCCAS on the UE causing or calling information insulated for receiving the VCC AS. The UE and connection of 3GPP system for CS domain and IMS domain switch, realizing of the VCC AS in IMS the switching of domain and CS domain, wherein ensure the voice call for UE holding the switching of manner, and so on user experience to the voice service in a power of UE connection exchange.

The present, the emergency service providing service emergency call for user. For example, user a emergency call 119), a network is not request from the emergency call according to the common voice call background, which is by calling session unit is arranged as the emergency call request by directly connected with the emergency call in a '), PSAP), providing service for user by PSAP.

The urgent realizing service, and UE in IMS domain causing the emergency services, UE called session unit and user identity by IMS domain causing the emergency service request to for IMS and called session unit the emergency business routing to the emergency call centre, talking is connected between UE and PSAP. And UE when CS domain causing the emergency services, UE called session unit to and vibrates the emergency service request to CS domain according CS domain called session unit is bolted the emergency business routing PSAP, talking is connected between UE and PSAP.

Obviously the existing technology, and UE when the IMS domain causing the emergency services, the emergency services of wherein the user causing the visiting and there is no card by special call session operation unit or a user or the user is made as, which is to obtaining user signing information, wherein the session unit is of a iFC) is belong to the voice call fixer to a user by an initial filtering square IMS territory's VCC, ASAnd UE when CS domain causing the emergency call voice service, is of a to the intelligent service, wherein is to belong to a user the emergency call fixer is IMS territory's VCC AS. The causing the emergency services UE between the IMS receiving and CS domain switching, wherein the is a of emergency call fixer to VCC AS, then of the emergency services between the voice call continuity of the source and receiving target for domain.

invention content

The radio for consideration, the invention the volume of the example's of claims a to realize the voice call continuous method and system in the emergency services and ensure UE when the source receiving and receiving volume switch, can realize the voice call continuity.

The invention claims with realizes the voice call continuous method for emergency services, wherein the method comprises: A and emergency call centre PSAP and is a RECTIFIER power source or the user i winters in a direction other side of transport UE and vibrates the emergency service quest; B and network entity judging emergency services the satisfies trigger emergency call service continuity the state; In a condition satisfies; the emergency anchoring service to voice call continuous VCC application server AS, is connected and UE PSAP the source talking the connection area ; C and VCC AS realizing voice call service continuity according to the emergency service fixer. In turn to serve the second key, the invention further claims a to realize the voice call continuous system in the emergency services call, the system comprises: UE, comprising a supply city's emergency services call session unit, and PSAP; VCCAS, Wherein transport UE and vibrates end of the emergency call continuous information in the source and emergency service request to or a switch request or PSAP causing end of the emergency service quest for emergency call continuous, informationThe source territory's emergency services call session unit the emergency service quest fixer to VCC AS, is talking connected between and UE; PSAPThe VCC AS to support according to the switching for UE sent out of the emergency anchoring service, air UE is arranged on the volume and a talking connected with PSAP, and UE released by the source territory's session resource.

A see thereby a technical solution, the invention provides realizing voice call continuous method and system in the emergency services. Linkage VCC AS and emergency services call session unit in system, the emergency services call session control unit is the emergency business routing PSAP, and according to call information consisting of an emergency anchoring service to VCC and AS. The UE when the source receiving and receiving volume switch, VCC AS found anchor's session, and automatically UE and PSAP negotiates with, wherein the new session connection, and a UE the session resources in source domain, wherein when using on emergency services, the source area and volume and switching capable of the continuity of voice call.

Brief description for drawings

Digital 1 is the invention embodiment realizing voice call continuous system structure schematic seen in the emergency, serviceDigital 2 of the first good embodiment of this invention realizing voice call continuous method current position when the emergency, serviceImage edge is realizing voice call continuous method for information interactive current position when the emergency services according shown the digital 2, theDigital 3 is the second rod embodiment of this invention realizing voice call continuous method current position when the emergency, serviceImage 3a is realizing voice call continuous method for information interactive current position when the emergency services according shown the digital 3, the

Digital 4 is the third good embodiment of this invention realizing voice call continuous method current position when the emergency, serviceImage 4a is realizing voice call continuous method for information interactive current position when the emergency services according shown the digital 4, theDigital 5 is the fourth good embodiment of this invention realizing voice call continuous method current position when the emergency, serviceImage 5a is realizing voice call continuous method for information interactive current position when the emergency services according shown the digital 5.

detailed description of illustrated embodiments

In order to make the invention the volume, technical solution and power is clearer, and a further detailed description to the invention claims a light of the auxiliary digital.

The invention claims a realizing voice call continuous method and system for emergency services, UE or emergency call in body (PSAP) supply, and source and causing the emergency service quest, determining whether emergency services satisfies trigger call service continuity the state, which satisfies trigger call service continuity the state, network entity the emergency call fixer to VCC AS on, and a VCC AS fixer to the continuity of emergency services. To for UE and when the source and receiving target domain, VCCAS of find anchor's session, a acting UE and emergency call centre and connection, and then inserted in source and session resource, realizing continuity of emergency services call.

The emergency services comprises: The UE of source and causing the emergency to service request to PSAP and causing the emergency service request to UE to the source area of PSAP for emergency service request and a an emergency call continuous information.

Network entity to emergency call information continuous method for judging whether satisfies trigger call service continuity the state; Emergency call information continuous a capable of the explicit emergency service information, for example, emergency services indication, emergency user identity, emergency; theOr a implicit emergency service information comprises: Calling of the routing to processing emergency session service control unit E-CSCF equal, further - comprising a terminal calling information continuous, the terminal calling the continuous information comprises: The terminal capability, the user waits of chance, further - comprising a network continuous call information, for example, roaming, and network access type, signing data.

Signing data in network continuous call information is a and vibrates emergency service quest the signing data of UE, wherein signing data comprises a VCC service. The signing data can be causing the emergency service quest UE the signing data of emergency user identity, or causing the emergency service quest UE emergency user identity the signing data of common multi-public user, or for or causing the emergency service request to the emergency user identity for UE to match the form of the signing data.

The urgent service quest when the emergency services for UE of source and electric equipments according to PASP, is as follows the network entity to trigger the VCC AS: method1st, Network entity judging emergency service request a comprises a display or the implicit emergency service information, comprising several the emergency service quest trigger (VCC AS.

2nd, Network entity judging emergency service request presence of the display screen or a implicit emergency service information; each, and determines the emergency service request to of the terminal calling information continuous and a network continuous call information and at least one, emergency service quest trigger (VCC AS. The terminal calling the continuous information and network continuous call information reporting capable of the terminal, or; the service request in a communication terminal, or is obtained by a network entity searching third-party node.

The emergency services is for requesting and forward which comprises a trigger (VCC: ASThe network entity and VCC AS address. Method for obtaining comprises: The network entity from the emergency service request for obtaining VCC AS, addressOr obtaining VCCAS address the third party node, searchingOr obtaining VCCAS address from configuration. The third party node can be HSS and location registerand (HLR) and device for managing client/supply (DM/CP) equal.

Network requirement obtaining the VCC AS address need to powering UE the following informing, for example, and a network entity or VCC AS; the following emergency service request in response message to send to UE, or returned to powering UE in message and methods of.

When the emergency services is composed PSAP UE the source and emergency service quest equipments according, wherein the emergency services called back, network entity trigger VCC AS method is as follows: The network entity may allocate resources for according to the emergency service request to PSAP sign according, an emergency call continuous information, for example, UE capability or emergency user identity equal, or an emergency services symbols emergency service quest trigger (VCC and AS.

The PSAP causing the emergency service request to the register user, the first emergency service request is connected to a user in network entity of ownership and register, the signing data in network entity to emergency call information continuous the emergency service quest fixer to user ownership domain signing VCC AS, and further emergency service request and routing is at UE, wherein the connection talking.

The PSAP to is not registered the user causing the emergency service quest, first from the emergency call continuous information obtaining VCC AS address, and emergency service quest fixer to the VCC and AS. The newest user routing information of the VCC AS to obtaining, wherein PSAP and call between the user terminal.

The emergency call information continuous are formed as the emergency call continuous information on PSAP; aOr, PSAP according to HSS using the emergency household mark searching user is data, or HLR, or DM/CP emergency call information consisting of gain; Or, PSAP having emergency call information continuous the emergency call information consisting of emergency services obtaining request to the salt for UE once heating. Signing data in network continuous call information of download the user identity register to the network entity signing data, or obtaining signing data other through manner. The signing data initial a filtering square (iFC), information instruction the iFC according to iFC comprises a use in the emergency services; the information can be emergency public sign (EMPU or) through EMPU of the shell; the information can is further an emergency services symbolized, for example, network entity is common PU and iFC matched; therefore the network entity and are the current call of the emergency services, in order to with the emergency services rate matching.

Source, and is capable of random in IMS domain, CS domain and wireless local area network (wireless); The target and can is further a random in IMS domain, CS domain and WLAN. UE or PSAP first and vibrates the emergency service request to the source area for UE and switching target domain according to the need, UE or PSAP of with the following step number of the source and receiving target for receiving the combination step: UE or PSAP first and vibrates the emergency call request to the IMS domain, and UE lower switching target domain from the source, and capable of random in IMS domain, CS domain and WLAN; UE or PSAP of the first and vibrates the emergency call request to the CS domain, and UE lower switching target domain from the source, and capable of random in IMS domain, CS domain and WLAN; UE or PSAP of the first and vibrates the emergency call request to the WLAN, and UE lower switching target domain from the source, and capable of random in IMS domain, CS domain and WLAN.

See the digital 1, digital 1 is the invention embodiment realizing voice call continuous system structure schematic seen in the emergency services. The system comprises UE101 and domain IMS emergency services call session unit 102, CS domain service emergency call session unit 103, AS104 VCC and PSAP105.

, UE101 are 102 and CS domain service emergency call session unit 103) with a domain IMS emergency services call session unit, UE101 first or in IMS a domain in domain in CS domain causing the emergency service request to the is the emergency call according here emergency service quest UE101 equipments. Domain IMS emergency services call session device 102 and CS domain service emergency call session device 103 and network entity a.

And UE 101 when the IMS domain causing the emergency call, and IMS emergency services call session device 102 and a UE 101, VCC AS 104 and PS AND 105), and emergency call information continuous emergency call fixer to VCC AS 104), a domain IMS emergency services call session unit 102, can serve session call control function (S-CSCF) and proxy to session call control function (P-CSCF) and access gateway control function and border gateway control function and interconnection edge control function, AS or media gateway control function for IMS territory's emergency session call control function (E-CSCF) and inquiry session call control function (I-CSCF).

The UE101 when CS domain causing the emergency call CS domain service emergency call session device 103 and a UE 101, VCC AS 104 and PS AND 105), and a calling anchoring the according to the emergency call continuous information to VCC AS 104, theAnd CS domain service emergency call session unit (103) are visiting service mobile switching centre or mobile gateway mobile switching centre.

The VCC AS104 receiving came from the domain IMS emergency services call session unit 102 to CS domain service emergency call session unit 103 or PSAP105 the emergency call fixer, VCC AS104 of acting or redirection method for emergency services according UE101 causing request of the routing to PSAP105 or the emergency service request device according PS AND 105 and vibrates to UE 101, which is takes for completing the emergency call service continuity the control function. The UE101 and switching between the IMS receiving and CS domain, VCC AS104 found anchor's session, automatically UE101 and PSAP105 consults, wherein the new access body, and in source and session resource, and emergency call and CS domain in IMS for switching between domain.

PSAP105 are 103 and VCC AS104 is connected with the domain IMS emergency services call session unit 102, CS domain service emergency call session device. A receiving slicer converts the call according UEIOI causing request indicator and preserves the emergency call continuous, informationOf PSAP105 and vibrates to UEIOI comprises an emergency service quest of emergency user identity. The UEIOI registration the emergency user identity is a user identity, (3-2) IS unified resource marks (URI) or a telephone comprising a session preset protocol (TEL) INCLUDING, wherein UEIOI is not registered the emergency user identity in IMS domain is a temporary emergency multi-public user of UEIOI distribution. The PSAP105 causing the emergency service request to UEIOI of the emergency call continuous information, the emergency services call session unit 102 or 103 the emergency anchoring service to UE ownership territory's VCC AS104 on, and contacted with the emergency business routing UEIOI, wherein the talking connected with PASP105 and UEIOI.

UEIOI or PASP105 and vibrates the call request to the IMS one set of domain and CS domain, a UE101 or 105 PASP first 102 and vibrates the emergency call to the domain IMS emergency services call session unit, and IMS emergency services call session 102 unit is a supply territory's emergency services call session unit, CS domain service emergency call session device 103 and target territory's emergency services call session unit; The UEIOI to CS domain of the IMS domain, 103 UEIOI causing the emergency call request to CS domain service emergency call conversation and device. A UEIOI or PASP105 first 103 and vibrates the emergency call to CS domain service emergency call session unit, CS domain service emergency call session 103 unit is a supply territory's emergency services call session unit, a domain IMS emergency services call session device 104 and target territory's emergency services call session device. The UEIOI to CS domain of the IMS domain, 102 UEIOI causing the emergency call request to the domain IMS emergency services call conversation and device.

See the digital 2, wherein digital 2 is the invention the emergency service first good embodiment realizing voice call continuous method current map. The embodiment, UE first causing the emergency service request to the IMS domain according and UE to CS domain according to the circuit; IMS territory's E-CSCF, MGCF, I/S-CSCF and CS territory's VMSC and network entity, a IMS domain and embodiment source and CS, and embodiment target domain. The service realization comprising the steps of: The pedal 201, UE causing the emergency call request to IMS territory's E-CSCF in IMS domain.

The pedal 201, the emergency call request which are the emergency call continuous information.

Pedal 202, IMS territory's E-CSCF according to emergency call continuity judging information service for obtaining the satisfies trigger call service continuity the state, and satisfies; and operating 203, theOtherwise ended trigger emergency call continuous service flow.

An emergency call direct-current information's method comprises: The network entity and emergency call continuous information from UE or PSAP, or from the emergency service request for obtaining emergency call continuous, informationOr, IMS territory's E-CSCF directly or acquiring the emergency call continuous information from HSS HLR, or the DM/CP indirectly server, UE of the alarming terminal calling information continuous and network continuous call information by a message to form a network entity.

Emergency call information consisting of the teeth a explicit emergency service information and terminal calling information continuous, or the; twoFurther, emergency call continuous information can also comprises a network continuous call information, the network call information direct-current inquired the user signing database to obtain.

And the IMS domain, and emergency call routing to IMS territory's E-CSCF, wherein implicit for emergency service information. Explicit and emergency service information comprises an emergency services indication and emergency user identity, the emergency number, a terminal calling information continuously at least comprises a power terminal, user preference, and a VCC AS, addressNetwork continuous call information comprises at least one of the roaming, network access type and signing data.

, Signs the data to and vibrates emergency service quest the signing data of UE, at least comprising the following multiple probable the step: An signing VCC service information UE the signing data of emergency user identity, filled signing VCC service information UE emergency user identity the signing data of common base mark and method signing VCC service information the emergency user identity of transport UE prompting through the form a signing data. A filtering initial square (iFC) in the signing data, communicating through EMPU of the iFC and EMPU the shell; or the emergency services symbolized dimensions of the iFC can use in the emergency services, iFC a download in the emergency register, and apparatus for registering and at a. And UE is a register UE, a download the signing information to a network entity.

The urgent user identity of the upper teeth, UE registration, emergency user identity a multi-public user, the 7> in user identity an SIP URI or TEL URI; And UE is not registered, the emergency user identity can also comprises a temporary emergency multi-public user, wherein the temporary emergency multi-public user in IMS domain causing the emergency call emergency multi-public user according assigns temporarily; the emergency user identity can be SIP URI or TEL URI.

IMS territory's E-CSCF automatically according to emergency call continuous information service judging whether the satisfies trigger call service continuity the state, a judging method comprises: IMS territory's E-CSCF automatically according to the explicit emergency service information or implicit emergency service information service judging whether satisfies trigger call service continuity the state; - Comprising according to explicit emergency service information and terminal calling continuous, informationExplicit or emergency service information and network call continuous, informationOr implicit emergency service information and terminal calling continuous, informationOr implicit emergency service information and network call continuous, informationExplicit or emergency service information and network continuous call information and terminal calling continuous, informationOr implicit emergency service information and network continuous call information and terminal calling information continuity judging whether service the satisfies trigger call service continuity the state.

Pedal 203, IMS territory's E-CSCF emergency call routing to VCC AS, wherein of the calling anchoring to allocating VCC AS, VCC AS of acting or a heavy direction detection's in a request the routing to PSAP.

203 Realizing emergency call fixer has the following three or more to the VCC AS condition in the invention, and fixed in a manner and embodiment of the step: And the VCC AS address and UE for pre-twisted patching bar; Or a step 201, UE; the emergency service request starting end of the VCC AS, addressInquiring or third-party node and VCC AS address, network continuous call information obtaining VCC AS address from the terminal calling information continuously or a. Such IMS territory's VCC AS address of E-CSCF to an emergency service quest fixer to the VCCAS. , The third party node can be HSS HLR, and DM/CPUE when the emergency the service quest, and VCC AS address for from the network and preserves sending a pre-formed, the emergency services in IMS territory's E-CSCF to claims 201 UE causing request VCC AS address for and finally, emergency service quest fixer to the VCC, AS

UE obtaining VCC AS address way of preserves and sending a pre-formed comprises a network: And UE

When the IMS domain, a pre-formed to the VCC AS address a short the form of return message or a instant message or subscription informing a VCC AS or HSS or HLR or the DM/CP server or IMS territory's E-CSCF UE, or the corner or a UE the responses for registering of call and VCC AS, addressAnd UE to CS domain, and acknowledge message ANM connected with the VCC AS address in advance, or heating UE a formed with for short message.

And the VCC AS on address IMS territory's E-CSCF for pre-twisted patching bar, a ' RECTIFIER IMS territory's E-CSCF automatically according to for configuring the VCC AS address the emergency service quest fixer to the VCC and AS.

Realization of the step see is the edge position 3-5, IMS territory's and E-CSCF for address arranged on VCC AS a routing device (), and call request according to retransmits designation VCC AS, wherein the realizing calling to designate the VCC AS fixer. VCC AS covered by (invite) information requesting the route is connected to the E-CSCF transmission invitation of IMS domain IMS territory's E-CSCF, and IMS territory's E-CSCF request the emergency call the routing to PSAP.

The pedal 204), and UE session connected between PS AND.

The special of see is the edge position 6-14. PSAP first performing a Session Description Protocol media to consult and UE, PSAP a information for IMS territory's E-CSCF transmission session, and a information to transmit the conversation of IMS territory's E-CSCF VCC AS and UE, and methods for data message, IMS territory's E-CSCF finally to the PSAP transmitting data message, wherein a conversation of PSAP.

The pedal 205, VCC AS is wherein address circuit UE.

The invention, VCC AS of the coil is electrically connected with a short the form of the anchor session response message of a message or a instant message or subscription informing wherein address UE, and insulated and UE, at the insulated PSAP comprises a VCC AS address emergency call continuous, informationAnd UE is not registered UE, VCCAS, HSS HLR, and DM/CP server or a network entity preserves the UE route information.

Pedal 206, wherein the UE of need to switching CS domain, causing the call request to CS territory's VMSC.

The specific operations see is the edge position 15-16, realizing method of this invention is, wherein the wireless environment variations or end; the UE judging emergency call request switching CS domain, UE and VCC AS address and vibrates the call request to and a called number of CS domain.

The pedal 207, CS territory's VMSC a switching the support is the VCC AS.

Specific operations of image 2in 17-19 alarm, the first retransmits an initial address message to MGCF of CS territory's VMSC (IAM), MGCF covered with a invite message emergency call routing to IMS territory's I/S-CSCF, and finally IMS territory's I/S-CSCF emergency call routing to VCC AS.

Filled the switching of emergency service request indicator the switch request according indicated the switching of the switching of emergency call. The switch request can be: A switch request message domain, or senate number field, or the information body of the switch request of the emergency; the VCC and switching value (VDN) and/or the VCC for unified mark resources in (VDI) are filled the switching of emergency power service request to the or an comprises emergency services the power switch request for emergency call continuous information.

The pedal 208, VCC AS found anchor's session, acts and UE PSAP consults, wherein the consultation completes, CS domain access call part is alarm.

The specific process see is the edge position 20-28, wherein the number of the VCC AS as an anchor session's method is as follows: The pedal 203 IMS territory's E-CSCF with a mobile-storage the emergency call of emergency user identity is eight anchor is bolted with VCCAS; the emergency user identity for emergency user identity of claims 201 and. The pedal 208, VCC AS air according to the emergency user identity as anchor's, sessionOr VCC AS automatically according to send to UE, and is found anchor's conversation of the anchor rate of UE wire. , VCC AS capable of the coil is electrically connected with a short the form of the anchor session response message of a message or a instant message or subscription informing the anchor locating UE, and insulated and UE, an anchor locating according here is edges of the positioning mark. And VCC AS or a on the two of PSAP is newest the emergency user identity.

VCC AS air according to the emergency user identity as fixer the specific operations for session is as follows, and UE is a register UE; the emergency user identity for multi-public user, comprising SIP URI or TEL URI, VCC AS air according to the user identity as anchor's session. And UE is not registered UE; the emergency user identity is in IMS domain is a temporary emergency multi-public user for UE distribution, capable of SIP URI or TEL URI, wherein the temporary emergency multi-public user is TEL URI, VCC AS air according to the emergency multi-public user as anchor's session or VCC AS calls of the insulating assigns and returning to UE powering on VCC AS an anchor locating device, VCC AS automatically according to the locating number as anchor's conversation and route of for switching, requestWhen the temporary emergency multi-public user is SIP URI, VCC AS called of the insulating assigns and returning to UE powering on VCC AS an anchor locating device, VCC AS automatically according to the locating number as anchor's session. The UE and PSAP the VCC AS proxy target domain arranged on the connection talking process or a talking connected; the VCC AS or HSS or HLR or the DM/CP server or a network entity preserves volume and routing information and UE.

VCC AS of the air UE and PSAP negotiates with, a realizing method about description of talking connection is: VCC AS automatically transport UE and vibrates the call request to PSAP device and receiving PSAP session is arranged on the information, VCC AS tells through IMS territory's I/S-CSCF the connection information MGCF, MGCF told VMSC side; the VMCS received the connection information, a UE transmission connection request message, a UE loop apparatus, information sent the data information finally VCC AS, wherein a UE and PSAP to CS domain talking connection.

The pedal 209, VCC AS a UE the session resources in IMS domain.

The specific operations see is the edge position 29-30, VCC AS through the goodbye (BYE) is a IMS domain E-CSCF transmission message, and retransmitted the BYE message to inform transport UE end of the IMS territory's conversation of IMS territory's to E-CSCF UE.

See the digital 3, 3 shape of the second rod embodiment of this invention realizing voice call continuous method current position when the emergency services. PSAP first causing the emergency to service request to IMS territory's UE in IMS domain, emergency service quest for emergency call call request back of request or emergency call. And UE lower switching CS domain according to the wireless environment of emergency call, PSAP and UE with CS domain in the emergency call connected in CS domain; a, IMS territory's E/S-CSCF, MGCF, I/S-CSCF and CS territory's VMSC and network entity, a IMS domain and embodiment source and CS, and embodiment target domain.

The pedal 301, PSAP causing the emergency to service request to IMS territory's E/S-CSCF in IMS domain, the emergency service quest for emergency call call request back of request or emergency call.

The pedal 302, gained of the emergency call information consisting of IMS territory's E/S-CSCF, according to emergency call continuous information service judging whether the satisfies trigger call service continuity the state, and satisfies; and operating 303, theotherwise conclusion trigger call continuous service flow.

The invention E/S-CSCF, and emergency call continuous information which comprises: IMS territory's E/S-CSCF from the emergency services according PSAP causing request for obtaining emergency call continuous, informationOr, IMS territory's E-CSCF directly or acquiring the emergency call information continuously from the user signing database or the DM/CP indirectly server.

The PSAP the emergency service request starting when of the emergency call continuous information, PSAP obtaining information the method comprises: A emergency call information continuous and PSAP a pre-formed, or PSAP from the emergency services for UE once heating request the emergency call information continuous for obtaining, wherein HSS HLR, and DM/CP of the server PSAP to user identity searching user data of the emergency call information consisting of gain; Or a emergency call information consisting of an respectively gain.

The pedal 302, wherein the IMS territory's E/S-CSCF of the follow closely service IMS territory's E-CSCF service judging whether satisfies trigger call continuous service state method for and step 202) for satisfies trigger call continuous service state method is completely same.

Pedal 303, IMS territory's E/S-CSCF emergency service quest routing to VCC AS, wherein of the calling anchoring to designation VCC, AS VCC AS of acting or redirecting an emergency service quest routing to UE.

The pedal 303, IMS territory's E/S-CSCF the emergency call the back call request fixer of request or emergency call to the VCC AS method is as follows: E/S-CSCF obtaining emergency call information continuous and PSAP mark, and emergency call information continuously or PSAP mark emergency anchoring service to VCC AS.

The E/S-CSCF base of IMS domain comprises an emergency call information consisting of emergency user identity the emergency anchoring service to VCC and AS.

The urgent service request in PSAP causing for emergency call request, IMS territory's E-CSCF automatically according to the emergency call information continuous request to the emergency call an anchor (VCC AS .

The urgent service request in PSAP causing for call request back of emergency call, IMS territory's E-CSCF realizing VCC AS anchor's gymnastics: usedAnd UE is a register UE; the emergency user identity is a user identity, comprising SIP URI or TEL URI, IMS territory's E/S-CSCF obtaining VCC AS address of user signing according to the user identity searching user signing database, and UE the emergency anchoring service between PSAP to the user signing ownership domain VCC AS, and emergency business routing to; UEAnd UE is not registered UE; the emergency user identity is in IMS domain is a UE distribution temporary emergency 7 > in user identity, comprising SIP URI or TEL URI, the E/S-CSCF base of IMS domain in the VCC AS address in the emergency call and emergency anchoring service to VCC AS, simultaneously call back routing information unit preservation's UE the routing information routing to VCC AS a bolted with UE, wherein the embodiment the call back routing information unit is edges of the VCC AS or HSS or HLR or the DM/CP server or a network entity. The VCC AS base is a temporary emergency multi-public user for UE distribution assigns for emergency services (VCC AS a number, and returning and insulated to UE, VCC AS to routing information of call request device for emergency call to UE.

, When the UE routing information is a VCC AS, guide according to preserving the UE calling information of signal device for emergency call to; UEWhen the UE routing information is composed HSS or HLR or the DM/CP server or a network entity wire, VCC AS of; the emergency call called back, relating the UE routing information from HSS HLR, and DM/CP server or a network entity, according to the UE routing information of call device for emergency call to; UEThe back routing information is UE of the volume information domain.

The invention claims 304~ step 309 and embodiment of 204~ claims 209 descriptions on the basic, except for IMS territory's E-CSCF replacing of IMS territory's E/S-CSCF. The specific operations see the position 3a.

See the digital 4, 4 shape of the third good embodiment of this invention realizing voice call continuous method current position when the emergency services. The embodiment, UE causing the emergency call service in CS domain, a PSAP session fixer to VCC AS on, a UE mobile to the IMS domain, VCC AS automatically transport UE and vibrates the new session connected to PSAP, IMS territory's I/S-CSCF, MGCF and CS territory's VMSC and network entity, CS domain and embodiment source and IMS, and embodiment target domain. The pedal for realizing is as follows: The pedal 401, UE causing the emergency call request to CS territory's VMSC to CS domain. The pedal 401, the emergency call request which are the emergency call continuous information.

Pedal 402, CS territory's VMSC according to emergency call continuity judging information service for obtaining the satisfies trigger call service continuity the state, and satisfies; and operating 403, theotherwise conclusion trigger call continuous service flow.

CS territory's VMSC obtaining emergency call continuous information and service judging whether satisfies trigger call service continuity the state method and step 202 corresponding method of completely same.

The pedal 403, is the same as the damage 207, descriptions CS territory's VMSC to a calling anchoring by special prefix-suffix-codes and manner of VCC AS, VCC AS of acting or redirection method requests the emergency call the routing to PSAP.

The specific operations see and number of the points 4a 3-5, CS territory's VMSC first request the emergency call in IMS territory's MGCF and IMS territory's I/S-CSCF routing to VCC AS, emergency call fixer to allocating VCC AS.

The emergency call fixer of the teeth corresponding to the allocation VCC AS condition and step 203 of the VCC AS anchor's condition is completely same, and a CS territory's VMSC completes the step the emergency call fixer to the operation of VCC AS.

Pedal 404, which is similar 208, wherein session connected between UE and PSAP.

Claims 404 to realizing the process see is a position 6-14 1-3, wherein UE and PSAP between technology for session is connected with the existing technology, therefore of the simple description is: VCC AS causing emergency call request to PSAP, comprising PSAP receiving the emergency call request, and SDP media to consult between IMS territory's MGCF, and a information to transmit the session to VCC AS. Finally IMS territory's I/S-CFCS and VCC AS a confirm for information loop is PSAP, wherein talking is connected between PSAP and UE, at PSAP preserves the emergency call continuous information.

The pedal 405, VCC AS is wherein address circuit UE.

The VCC AS address of inform UE through instant message and surface, and insulated and UE, at the insulated PSAP comprises a VCC AS address emergency call continuous, informationAnd UE is not registered UE, VCCAS, HSS HLR, and DM/CP server or a network entity preserves the UE routing information block and 4Q6, is the same as in operations 206, wherein the UE of need switching IMS domain, a

IMS territory's I/S-CSCF causing emergency call request to.

The pedal 406 realizing see is a position 15-16 1-3, wherein UE lower switching IMS domain according to the wireless environment of call, UE and VCC AS address and vibrates the emergency call request to IMS territory's I/S-CFCS and a called number.

The pedal 407, IMS territory's I/S-CSCF a switching the support is the VCC AS.

The pedal 408, VCC AS found anchor's session, and a talking connection of UE and PSAP in IMS domain.

The invention claims from 408 operations see is a position 1-3, 18-21 VCC AS found anchor's session, wherein the number of the VCC AS as an anchor session's method is as follows: VCC AS registering by the user identity for UE found anchor's, sessionOr VCC AS air according to send to UE and found anchor's conversation and UE on the locating fixer, wherein the anchor is positioning mark.

VCC AS of the air transport UE and vibrates the session to request to PSAP, comprising PSAP received the support, which the information the session informs UE (VCC and AS IMS territory's I/S-CSCF, talking is connected between and UE; PSAPThe are arranged in talking connection process or a talking connected; when UE is not registered UE, VCC AS, HSS HLR, and DM/CP server or a network entity preserves IMS and routing information and UE.

The pedal 409, VCC AS a UE to CS territory's session resource.

VCC AS a UE, in IMS territory's the damage of session resource see is a position 1-3, 22-24 VCC AS from the BYE information to I/S-CSCF in IMS domain, IMS territory's I/S-CSCF informs the BYE information IMS territory's MGCF, a IMS territory's MGCF receiving BYE, information to CS domain VMSC transmission lever (REL), information finally CS territory's VMSC informs the REL information UE, wherein a UE to CS territory's session resource.

The specific operations see points (4a.

See the digital 5, 5 shape of the fourth good embodiment of this invention realizing voice call continuous method current position when the emergency services. The embodiment, PSAP causing the emergency to service request to CS territory's UE for emergency service request request for emergency call call back of request or emergency call, a PSAP session fixer to VCC AS on, a UE mobile to the IMS domain, VCC AS automatically transport UE PSAP

Causing the new session connected; IMS territory's S-CSCF, MGCF, I/S-CSCF and CS territory's VMSC and network entity, CS domain and embodiment source and IMS, and embodiment target domain. The number of the realizing method is as follows: The pedal 501, PSAP causing the emergency to service request to IMS territory's S-CSCF of the emergency service request request exactly the back call request for emergency call for emergency call.

Pedal 502, IMS territory's S-CSCF according to emergency call continuity judging information service for obtaining the satisfies trigger call service continuity the state, and satisfies; and operating 503, theotherwise conclusion trigger call continuous service flow.

The pedal 502, IMS territory's S-CSCF obtaining IMS territory's E/S-CSCF for emergency call direct-current information's and method of 302 to the gain the emergency call information continuous method is completely same.

IMS territory's S-CSCF obtaining method for emergency call direct-current information's method of the same is 302 to any one of.

IMS territory's E-CSCF of service for IMS territory's S-CSCF of service satisfies trigger call service continuity the state and method of 202) for satisfies trigger call service continuity the indication method of completely same.

Pedal 503, IMS territory's S-CSCF emergency business routing to VCC AS on, wherein realizing emergency services in allocating an anchor and VCC AS, VCC AS of acting or redirecting an emergency service quest routing to UE.

IMS territory's E/S-CSCF are the same to a method for VCC AS method and 303 of the emergency anchoring service.

The pedal 504, session is connected between PSAP and UE.

A PSAP and UE the step between for session connection is a content of prior technology, here is a brief a. See exactly comprises an image 5a 3-14, VCCAS receiving the emergency call of the S-CSCF routing method of request of the VCC AS address of inform to powering UE in short message, instant message and methods, and UE acknowledge message the position 5in 6-11 transmitting PSAP, comprising PSAP receiving session a information integrated, the data information is electrically connected with S-CSCF, finally acknowledge message via image 5in 13, 14 and sending VCC AS

With MGCF, wherein a session between PS AND and UE.

The 505~ step 509, which is 405~ step 409 are textures compose confuses full same, except for fixing position 4among IMS territory's I/S-CSCF replacing is an image 5a S-CSCF; the S-CSCF taking IMS territory's network entity.

The embodiments, which are used among IMS domain and CS domain and source area and volume and is described as the invention, the position shape of the embodiment of domain IMS emergency services call session unit and any one of CS domain service emergency call session unit is a supply territory's emergency services call session unit, and UE of the volume domain from the source domain, and IMS emergency services call session unit and a to CS domain service emergency call session unit has a volume territory's emergency services call session device. The embodiment of shown the digital 2, UE of IMS domain and source area of the emergency call request, CS domain and switch volume, domainThe embodiment of shown the digital 3, PSAP causing the emergency to service request to UE in IMS area of the IMS domain is a source, and CS domain and switch volume, domainThe embodiment of shown the digital 4, UE of CS domain and source area of the emergency call request, a IMS domain and switch volume, domainThe embodiment of shown the digital 5, PSAP causing the emergency to service request to the UE CS domain of the CS domain is a source, and IMS domain and switch volume domain.

Is the condition; the situations comprises: And the source and a IMS domain, a IMS domain and volume, domainOr; and source and a IMS domain, WLAN and volume, domainOr; and source area of CS domain, CS domain and volume, domainOr; and source area of CS domain, WLAN and volume, domainOr a source area of WL AN, a IMS domain and volume, domainOr a source area of WL AN, CS domain and volume, domainOr and source domain in WLAN, WLAN and condition in volume and is basic with the operating method in the embodiment, described for simplicity, here which is of a details.

The brief, the is relatively without embodiment of this invention, is not used to define the invention the has a protection.