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WO2016183775A1 - Procédé, appareil et dispositif d'appel d'urgence - Google Patents

Procédé, appareil et dispositif d'appel d'urgence Download PDF

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Publication number
WO2016183775A1
WO2016183775A1 PCT/CN2015/079197 CN2015079197W WO2016183775A1 WO 2016183775 A1 WO2016183775 A1 WO 2016183775A1 CN 2015079197 W CN2015079197 W CN 2015079197W WO 2016183775 A1 WO2016183775 A1 WO 2016183775A1
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WO
WIPO (PCT)
Prior art keywords
emergency call
indication
epdg
location information
network element
Prior art date
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PCT/CN2015/079197
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English (en)
Chinese (zh)
Inventor
李欢
靳维生
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201580032743.XA priority Critical patent/CN106464653A/zh
Priority to PCT/CN2015/079197 priority patent/WO2016183775A1/fr
Publication of WO2016183775A1 publication Critical patent/WO2016183775A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an emergency call method, apparatus, and device.
  • the core network mainly includes a mobility management network element (English: Mobility Management Entity, abbreviation: MME), a service gateway (English: Serving Gateway, abbreviation: S-GW), and The packet data network gateway (English: Packet Data Network Gateway, abbreviation: P-GW) has three logical functional entities.
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • P-GW Packet Data Network Gateway
  • the wireless evolution communication network includes not only the 3rd Generation Partnership Project (English: The 3rd Generation Partnership Project, 3GPP) network, but also the 3GPP network.
  • Non-3GPP networks include trusted non-3GPP networks and non-trusted non-3GPP networks.
  • the trusted non-3GPP network accesses the 3GPP core network through the S2a interface with the P-GW.
  • the non-trusted non-3GPP network accesses the 3GPP core network through an S2b interface between the evolved packet data gateway (English: Evolved Packet Data Gateway, abbreviated as: ePDG) and the P-GW.
  • ePDG Evolved Packet Data Gateway
  • the ePDG is used to forward or allocate the mobile IP address of the UE, register the local IP address of the UE, and bind the mobile IP address of the UE to the local IP address.
  • the authentication, authorization, and accounting server (English: Authentication, Authorization and Accounting server, AAA server) implements the authentication and authorization operation of the UE by interacting with the HSS network element, and establishes the UE.
  • the P-GW identification information used for each packet data network (English: Packet Data Network, abbreviation: PDN) is registered in the HSS.
  • the non-3GPP network accesses the 3GPP core network, as shown in FIG. 3, the trusted non-3GPP network or the non-trusted non-3GPP network can be accessed through the S2c interface between the UE and the P-GW.
  • the UE accesses the 3GPP network, the UE can also establish a binding with the P-GW through the S2c interface.
  • the WiFi-based voice English: Voice over WiFi, abbreviation: VoWiFi
  • the UE generally configures the ePDG location of the home location in advance. The address, regardless of the WLAN access network access from the UE, will select the home ePDG access.
  • the UE belongs to the non-roaming scenario, as shown in FIG. 4 .
  • the terminal uses the VoWiFi service
  • only the home network deploys the ePDG, or the operator configures the terminal to prefer the ePDG access in the preferred home network, so that when the UE roams to other networks, the home network is still selected.
  • the ePDG accesses the EPC.
  • the UE needs to make an emergency call, it will access the emergency call service of the home location according to the non-roaming architecture.
  • the emergency call service of the home location cannot provide the UE with a real service at this time, so that the emergency call initiated by the UE fails.
  • the present invention provides an emergency call method, device and device for solving the problem that the UE initiates an emergency call failure in the case of a roaming place.
  • the first aspect provides an emergency call method, including: acquiring location information of the UE when receiving an emergency call indication sent by the UE; and determining establishment information for establishing an emergency call session according to the location information of the UE Sending the setup information to the UE.
  • the establishing information includes at least one of: an indication for reselecting an evolved packet data gateway ePDG; and a trusted connection for accessing an emergency call An indication of an entry point; an indication for selecting a third generation partnership plan 3GPP network connection; an indication for accessing a proxy call session control function P-CSCF network element providing an emergency call service.
  • the indication for reselecting the ePDG includes: corresponding to the location information An ePDG address; and/or an ePDG identifier corresponding to the location information.
  • the indication for accessing the P-CSCF network element that provides the emergency call service includes: An address of the P-CSCF network element corresponding to the location information; and/or an identifier of the P-CSCF network element corresponding to the location information.
  • an emergency call method including: sending an emergency call indication by a UE; And establishing setup information for establishing an emergency call session corresponding to the location information of the UE; and establishing an emergency call session according to the setup information.
  • the establishing information includes at least one of: an indication for reselecting an evolved packet data gateway ePDG; and a trusted connection for accessing an emergency call An indication of an entry point; an indication for selecting a third generation partnership plan 3GPP network connection; an indication for accessing a proxy call session control function P-CSCF network element providing an emergency call service.
  • the indication for reselecting the ePDG includes: corresponding to the location information An ePDG address; and/or an ePDG identifier corresponding to the location information.
  • the indication for accessing the P-CSCF network element that provides the emergency call service includes: An address of the P-CSCF network element corresponding to the location information; and/or an identifier of the P-CSCF network element corresponding to the location information.
  • the establishing information is used to re-select the indication of the ePDG, according to the establishing
  • the information establishes an emergency call session, including: the UE selects an ePDG access of the roaming place to establish an emergency call session.
  • the establishing information is an indication of a trusted access point for accessing an emergency call And establishing an emergency call session according to the establishing information, including: the UE selecting a trusted WLAN access, and establishing an emergency call.
  • the establishing information is used to establish an indication of a 3GPP network connection,
  • the information establishes an emergency call session, including: the UE selecting a 3GPP network connection to establish an emergency call session.
  • the establishing information is used to access a P-CSCF that provides an emergency call service.
  • establishing an emergency call session according to the establishment information includes: sending a registration request to the P-CSCF network element to establish an emergency call session.
  • the third aspect provides an emergency call device, including: a receiving module, configured to receive an emergency call indication sent by the user terminal UE, and transmit the emergency call indication to an acquiring module; and an acquiring module, configured to receive the Obtaining the location information of the UE when the emergency call indication transmitted by the receiving module is received; the determining module is configured to determine, according to the location information of the UE, establishment information for establishing an emergency call session; and a sending module, configured to send to the UE Sending the setup information.
  • the establishing information that is determined by the determining module includes at least one of: an indication for reselecting an evolved packet data gateway ePDG; An indication of a trusted access point into the emergency call; an indication for selecting a third generation partner plan 3GPP network connection; an indication for accessing the proxy call session control function P-CSCF network element providing the emergency call service.
  • the determining, by the determining module, the indication for reselecting the ePDG includes: An ePDG address corresponding to the location information; and/or an ePDG identifier corresponding to the location information.
  • the determining, determining, by the determining module, accessing the P-CSCF that provides the emergency call service includes: an address of the P-CSCF network element corresponding to the location information; and/or an identifier of the P-CSCF network element corresponding to the location information.
  • an emergency call device including: a sending module, configured to send an emergency call indication; and a receiving module, configured to receive, according to location information of the UE, establishment information for establishing an emergency call session; And used to establish an emergency call session according to the establishment information.
  • the establishing information received by the receiving module includes at least one of: an indication for reselecting an evolved packet data gateway ePDG; An indication of a trusted access point into the emergency call; an indication for selecting a third generation partner plan 3GPP network connection; an indication for accessing the proxy call session control function P-CSCF network element providing the emergency call service.
  • the receiving, by the receiving module, the indication for reselecting the ePDG includes: An ePDG address corresponding to the location information; and/or an ePDG identifier corresponding to the location information.
  • the receiving module is configured to access a P-CSCF that provides an emergency call service
  • the indication of the network element includes: an address of the P-CSCF network element corresponding to the location information; and/or an identifier of the P-CSCF network element corresponding to the location information.
  • the establishing information that is received by the receiving module is used to re-select an ePDG
  • the indicating module is specifically configured to select an ePDG access of the UE roaming place to establish an emergency call session.
  • the establishing information that is received by the receiving module is used for accessing an emergency call.
  • the establishing module is specifically configured to select a trusted WLAN access and establish an emergency call.
  • the setup information received by the receiving module is used to select a 3GPP network connection And indicating, establishing an emergency call session according to the establishing information, including: the establishing module, specifically for selecting a 3GPP network connection, and establishing an emergency call session.
  • the establishing information received by the receiving module is used for accessing an emergency call
  • the establishing module is specifically configured to send a registration request to the P-CSCF network element to establish an emergency call session.
  • a fifth aspect provides an emergency call device, including: an interface, configured to receive an emergency call indication sent by a user terminal UE, and transmit the emergency call indication to a signal processor; a memory for storing a program instruction; a processor for following the program instructions stored in the memory, Acquiring the location information of the UE when receiving the emergency call indication transmitted by the interface; determining establishment information for establishing an emergency call session according to the location information of the UE; and transmitting the establishment information to the interface; The interface is further configured to send the setup information to the UE.
  • the establishing information that is determined by the signal processor includes at least one of: an indication for reselecting an evolved packet data gateway ePDG; An indication of a trusted access point for accessing an emergency call; an indication for selecting a third generation partnership plan 3GPP network connection; an indication for accessing a proxy call session control function P-CSCF network element providing an emergency call service.
  • the signal processor determines an indication for reselecting the ePDG, including: An ePDG address corresponding to the location information; and/or an ePDG identifier corresponding to the location information.
  • the signal processor determines a P- for accessing the emergency call service
  • the indication of the CSCF network element includes: an address of the P-CSCF network element corresponding to the location information; and/or an identifier of the P-CSCF network element corresponding to the location information.
  • a sixth aspect provides an emergency call device, including: an interface for transmitting an emergency call indication, a memory for storing program instructions, and a signal processor for receiving and receiving the UE according to program instructions stored in the memory
  • the location information corresponds to establishment information for establishing an emergency call session; and an emergency call session is established according to the establishment information.
  • the establishing information received by the signal processor includes at least one of: an indication for reselecting an evolved packet data gateway ePDG; An indication of a trusted access point for accessing an emergency call; an indication for selecting a third generation partnership plan 3GPP network connection; an indication for accessing a proxy call session control function P-CSCF network element providing an emergency call service.
  • the signal processor receives the indication for reselecting an ePDG, And including: an ePDG address corresponding to the location information; and/or an ePDG identifier corresponding to the location information.
  • the P- received by the signal processor for accessing the emergency call service is provided
  • the indication of the CSCF network element includes: an address of the P-CSCF network element corresponding to the location information; and/or an identifier of the P-CSCF network element corresponding to the location information.
  • the setup information received by the signal processor is used for reselection When the indication of the ePDG is performed; the ePDG access of the UE roaming location is selected to establish an emergency call session.
  • the setup information received by the signal processor is used for accessing an emergency call
  • a trusted WLAN access is selected to establish an emergency call.
  • the setup information received by the signal processor is used to select a 3GPP network connection When the indication is made, the 3GPP network connection is selected to establish an emergency call session.
  • the setup information received by the signal processor is used for accessing an emergency
  • a registration request is sent to the P-CSCF network element to establish an emergency call session.
  • FIG. 1 is a schematic diagram of a wireless evolved network architecture
  • FIG. 2 is a schematic diagram of a non-3GPP system accessing a wireless evolved network architecture by using an S2a or S2b interface;
  • FIG. 3 is a schematic diagram of a non-3GPP system accessing a wireless evolved network architecture by using an S2c interface;
  • FIG. 4 is a schematic diagram of a non-3GPP system accessing a wireless evolved network architecture by using an S2b interface;
  • FIG. 5 is a flowchart of an emergency call method according to Embodiment 1 of the present invention.
  • FIG. 6 is a flowchart of an emergency call method according to Embodiment 2 of the present invention.
  • FIG. 10 is a schematic structural diagram of an emergency call device according to Embodiment 6 of the present invention.
  • FIG. 11 is a schematic structural diagram of a structure of an emergency call device according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of an emergency call device according to Embodiment 7 of the present invention.
  • the UE may access the network at home to establish an emergency call, or may access in other areas except the attribution (for convenience, simply referred to as a visited place or a roaming place).
  • Network establish an emergency call.
  • the process of establishing an emergency call by the UE at the home location may establish an emergency call service according to the processing manner of the call service under normal circumstances, and may also establish an emergency call according to the technical solution proposed by the present invention.
  • the emergency call method will be elaborated by taking the UE as an example of establishing an emergency call by roaming access to the network.
  • the embodiments of the present invention provide and/or are used to indicate three technical solutions including the A and B conditions, the A condition, and the B condition.
  • the first embodiment of the present invention provides an emergency call method, as shown in FIG. 5, and the specific processing flow is as follows:
  • step 50 the UE sends an emergency call indication.
  • the UE may send an emergency call indication through the second version of the Internet Key Exchange Protocol (English: Internet Key Exchange Version 2, abbreviation: IKEv2).
  • IKEv2 Internet Key Exchange Version 2, abbreviation: IKEv2.
  • the UE sends IKEv2 signaling to the network side, and the emergency call indication is included in the IKEv2 signaling.
  • Step 51 The network side receives an emergency call indication sent by the UE.
  • the network side can obtain an emergency call indication in the received IKEv2 signaling. If the UE sends an emergency call indication through other signaling, the network side obtains an emergency call indication in other received signaling. If the UE sends an emergency call indication to the network side, the network side directly receives the emergency call indication sent by the UE.
  • the UE sends IKEv2 signaling to the network side, and the emergency call indication is included in the IKEv2 signaling.
  • the network side can obtain an emergency call indication by receiving the IKEv2 signaling.
  • Step 52 The network side acquires location information of the UE when receiving the emergency call indication sent by the UE.
  • the location information of the UE may be reported to the network side together with the emergency call indication, or may be obtained by the network side according to the received emergency call indication.
  • the location information of the UE includes at least one of the following:
  • A The address of the visited public land mobile network (English: Visited Public Land Mobile Network, abbreviation: vPLMN).
  • the address of the vPLMN where the UE is currently located is the address of the vPLMN where the UE is currently located.
  • Service Set Identifier (English: Service Set Identifier, abbreviation: SSID);
  • Address location information of the UE currently located such as longitude, dimension, and so on.
  • BSSID Basic service set identifier of the WLAN access point
  • Obtaining the location information of the UE may generally include the following two methods:
  • the UE reports its own location information.
  • the location information of the UE is pre-configured in the UE.
  • the location information of the UE is determined by the positioning module in the UE, and then the UE reports the location information to the network side.
  • the UE uses the Access Network Query Protocol (ANQP) query or the DNS query to obtain its own location information, and reports the queried location information to the network side.
  • ANQP Access Network Query Protocol
  • One way is that the network side can query the location information of the UE in the DNS when receiving the emergency call indication sent by the UE.
  • Step 53 Determine establishment information for establishing an emergency call session corresponding to the location information of the UE.
  • the establishment information includes at least one of the following:
  • the first way an indication for reselecting the ePDG.
  • the network side device determines, according to the received emergency call indication, and the obtained location information of the UE, that the UE needs to select the ePDG access in the vPLMN to establish an emergency call, and the establishment information is an indication for reselecting the ePDG.
  • the indication for reselecting the ePDG includes an ePDG address corresponding to the location information of the UE; and/or an ePDG identifier corresponding to the location information of the UE.
  • the ePDG for reselection may be a visited v-ePDG address, and/or a visited v-ePDG identity.
  • the second way an indication of a trusted access point for accessing an emergency call.
  • the indication of the trusted access point for accessing the emergency call may be an emergency indication of the S2a interface.
  • the network side device determines, according to the received emergency call indication and the acquired location information of the UE, that the UE needs to select a trusted access network to access the network to establish an emergency call.
  • the UE needs to access the wireless local area network (Wireless Local Area Networks, WLAN) in a trusted manner to establish an emergency call, or the UE needs to select a trusted WLAN access to establish an emergency call.
  • WLAN Wireless Local Area Networks
  • the third way an indication for selecting a 3GPP network connection.
  • the network side device determines, according to the received emergency call indication, and the acquired location information of the UE, that the UE needs to select a 3GPP network connection access network to establish an emergency call.
  • the indication for selecting a 3GPP network connection may be a 3GPP emergency indication.
  • the fourth mode is used to access the indication of the network element of the proxy call session control function (English: Proxy Call Session Control Function, abbreviation: P-CSCF).
  • the network side device determines, according to the received emergency call indication, and the acquired location information of the UE, that the UE needs to select the visited P-CSCF network element to access the network, and establish an emergency call.
  • the indication for accessing the P-CSCF network element providing the emergency call service may include an address of the P-CSCF network element corresponding to the location information; and/or an identifier of the P-CSCF network element corresponding to the location information.
  • Step 54 Send setup information to the UE.
  • the network side may send the setup information to the UE by using IKEv2 signaling.
  • the network side creates the session request for the address and/or the identifier of the P-CSCF network element (English: create session request)
  • the ePDG sends the P-CSCF address in the APCO to the UE by using IKEv2 signaling.
  • Step 55 The UE receives and establishes setup information for establishing an emergency call session.
  • step 56 the UE establishes an emergency call session according to the setup information.
  • the establishment information includes at least one of the following:
  • the first way an indication for reselecting the ePDG.
  • the indication for reselecting the ePDG includes an ePDG address corresponding to the location information of the UE; and/or an ePDG identifier corresponding to the location information of the UE.
  • the ePDG for reselection may be a visited v-ePDG address, and/or a visited v-ePDG identity.
  • the UE receives the setup information sent by the network side for re-selecting the ePDG.
  • the UE reselects the v-ePDG according to the indication for reselecting the ePDG, performs a process of authentication and authorization, and establishes an emergency call.
  • the second way an indication of a trusted access point for accessing an emergency call.
  • the indication of the trusted access point for accessing the emergency call may be an emergency indication of the S2a interface.
  • the UE needs to access the WLAN in a trusted manner to establish an emergency call, or the UE needs to select a trusted WLAN access to establish an emergency call.
  • the UE selects a WLAN network that supports trusted WLAN access and supports emergency calls.
  • the third way an indication for selecting a 3GPP network connection.
  • the indication for selecting a 3GPP network connection may be a 3GPP emergency indication.
  • the UE performs a selective 3GPP network connection according to the received indication for selecting a 3GPP network connection, and accesses the 3GPP network to establish an emergency call.
  • the fourth mode an indication for accessing a P-CSCF network element that provides an emergency call service.
  • the indication for accessing the P-CSCF network element providing the emergency call service may include an address of the P-CSCF network element corresponding to the location information; and/or an identifier of the P-CSCF network element corresponding to the location information.
  • the UE When receiving the indication indication for accessing the P-CSCF network element providing the emergency call service, the UE sends a registration request to the P-CSCF network element to establish an emergency call.
  • the UE acquires the location information of the UE when the UE needs to make an emergency call, and determines the establishment information when establishing the emergency call according to the location information, and The establishment information is sent to the UE, and the UE establishes an emergency call according to the received setup information, so that the UE can establish a connection with the emergency call service network element of the visited place.
  • the network side device mainly includes an MME (not shown in FIG. 6), H-ePDG, v-ePDG, PGW, V-PCRF, H-PCRF, HSS/AAAServer, and the like.
  • the MME is configured to transmit NAS signaling between the user equipment (English: User Equipment, abbreviated: UE), encrypt the transmitted NAS signaling, assign a temporary identity to the UE, and access the UE.
  • UE User Equipment
  • the control plane part of the wireless service English: General Packet Radio Service: GPRS
  • support node English: Serving GPRS Support Node, abbreviation: SGSN).
  • the S-GW is a mobility anchor for handover between the local evolved base stations (English: eNodeB), and is used to provide related functions such as lawful interception for the UE.
  • the P-GW is used to allocate UE address, policy control, and enforcement of charging rules, as well as related functions such as lawful interception.
  • the H-ePDG is an ePDG deployed in the UE home network
  • the v-ePDG is an ePDG deployed in the UE roaming network
  • the V-PCRF is a PCRF deployed in the UE roaming network
  • the H-PCRF is a PCRF deployed in the UE home network.
  • the emergency call method proposed in Embodiment 2 of the present invention is as shown in FIG. 6, and the specific processing flow is as follows:
  • step 61 the UE selects the H-ePDG and sends IKEv2 signaling to the selected H-ePDG.
  • the UE selects the H-ePDG, and the address of the H-ePDG may be pre-configured in the UE or obtained by the UE in the DNS query.
  • the UE includes an emergency call indication and current location information of the UE in the IKEv2 signaling.
  • the location information of the UE includes at least one of the following:
  • A The address of the vPLMN.
  • the address of the vPLMN where the UE is currently located is the address of the vPLMN where the UE is currently located.
  • Address location information of the UE currently located such as longitude, dimension, and so on.
  • Step 62 The H-ePDG receives the IKEv2 signaling sent by the UE, and sends an authentication authentication request message to the AAA server.
  • the authentication authentication request message includes an emergency call indication and current location information of the UE.
  • the H-ePDG transmits the received emergency call indication and location information to the AAA server via the authentication authentication request message.
  • Step 63 The AAA server receives the authentication authentication request message sent by the H-ePDG, and obtains the location information of the UE in the received authentication authentication request message.
  • Step 64 The AAA server determines, according to the obtained location information of the UE, that the UE should select an ePDG access network in the vPLMN, thereby establishing an emergency call.
  • step 65 the AAA server returns an authentication authorization response message to the H-ePDG.
  • the authentication authorization response message includes an indication for reselecting the ePDG.
  • the indication for reselecting the ePDG may be an indication message, and may also include an ePDG address corresponding to the location information of the UE; and/or an ePDG identifier corresponding to the location information of the UE.
  • the indication for reselecting the ePDG may include an address of the v-ePDG or an identifier of the v-ePDG.
  • Step 66 The H-ePDG receives an authentication authorization response message replied by the AAA server.
  • Step 67 The H-ePDG obtains an indication for reselecting the ePDG in the received authentication authorization response message.
  • Step 68 The H-ePDG sends the obtained indication for reselecting the ePDG to the UE by using IKEv2 signaling.
  • Step 62' the H-ePDG receives the IKEv2 signaling sent by the UE, and obtains an emergency call indication and current location information of the UE.
  • step 63' the H-ePDG determines that the UE should select the ePDG access in the vPLAN and establish an emergency call.
  • step 64' the H-ePDG sends an indication for reselecting the ePDG to the UE through IKEv2 signaling.
  • the indication for reselecting the ePDG may include an address of the v-ePDG or an identifier of the v-ePDG.
  • steps 62 to 68 and steps 62' to 64' can be To save the H-ePDG to AAA authentication and authorization process, speed up the emergency call setup process.
  • Step 69 The UE receives the IKEv2 signaling sent by the H-ePDG, and obtains an indication for reselecting the ePDG in the received IKEv2 signaling.
  • Step 70 The UE reselects the v-ePDG access according to the obtained indication for reselecting the ePDG.
  • step 71 the UE sends IKEv2 signaling to the selected v-ePDG.
  • Step 72 The v-ePDG receives the IKEv2 signaling sent by the UE, and sends an authentication authentication request message to the AAA server.
  • Step 73 The AAA server receives the authentication authentication request message sent by the v-ePDG, and returns an authentication authorization response message to the v-ePDG.
  • Step 74 After the authentication is passed, the v-ePDG sends a create session request for establishing an emergency call to the PGW.
  • step 75 the PGW replies with a create session response (create session response) to establish a PDN connection for the emergency call initiated by the UE.
  • step 76 the v-ePDG receives the create session response, and obtains the IP address allocated by the PGW to the UE.
  • step 77 the v-ePDG sends IKEv2 signaling to the UE.
  • the IKEv2 signaling includes an IP address allocated for the UE.
  • the network side device mainly includes an H-ePDG, a WLAN access gateway TWAG, a PGW, a V-PCRF, an H-PCRF, an HSS/AAAServer, and the like.
  • the emergency call method proposed in the third embodiment of the present invention is as shown in FIG. 7, and the specific processing flow is as follows:
  • step 701 the UE selects the H-ePDG and sends IKEv2 signaling to the selected H-ePDG.
  • the UE selects an H-ePDG, and the address of the H-ePDG may be pre-configured in the UE or obtained by the UE in a DNS query.
  • the UE includes an emergency call indication and current location information of the UE in the IKEv2 signaling.
  • the location information of the UE includes at least one of the following:
  • A The address of the vPLMN.
  • the address of the vPLMN where the UE is currently located is the address of the vPLMN where the UE is currently located.
  • Address location information of the UE currently located such as longitude, dimension, and so on.
  • Step 702 The H-ePDG receives the IKEv2 signaling sent by the UE, and sends an authentication authentication request message to the AAA server.
  • the authentication authentication request message includes an emergency call indication and current location information of the UE.
  • the H-ePDG transmits the received emergency call indication and location information to the AAA server via the authentication authentication request message.
  • Step 703 The AAA server receives the authentication authentication request message sent by the H-ePDG, and obtains the location information of the UE in the received authentication authentication request message.
  • Step 704 The AAA server determines, according to the obtained location information of the UE, that the UE should select a trusted access mode access, thereby establishing an emergency call.
  • Step 705 The AAA server returns an authentication authorization response message to the H-ePDG.
  • the authentication authorization response message includes an indication of a trusted access point for accessing the emergency call.
  • the indication for accessing the trusted access point of the emergency call may be a S2aemergency indication.
  • the UE needs to access the WLAN in a trusted manner to establish an emergency call, or the UE needs to select a trusted WLAN access to establish an emergency call.
  • the UE selects a WLAN network that supports trusted WLAN access and supports emergency calls.
  • the trusted WLAN can support the emergency access point (English: emergency access point name, abbreviation: emergency APN).
  • Step 706 The H-ePDG receives an authentication authorization response message replied by the AAA server.
  • Step 707 The H-ePDG obtains an emergency for access in the received authentication authorization response message. An indication of the trusted access point of the call.
  • Step 708 The H-ePDG sends the obtained indication of the trusted access point for accessing the emergency call to the UE by using IKEv2 signaling.
  • Step 702' the H-ePDG receives the IKEv2 signaling sent by the UE, and obtains an emergency call indication and current location information of the UE.
  • step 703' the H-ePDG determines that the UE should select a trusted access mode access to establish an emergency call.
  • Step 704' the H-ePDG sends the determined indication of the trusted access point for accessing the emergency call to the UE by using IKEv2 signaling.
  • steps 702 to 708, and steps 702' to 708' can save the H-ePDG to AAA authentication authorization process and speed up the emergency call establishment process.
  • Step 709 The UE receives the IKEv2 signaling sent by the H-ePDG, and obtains an indication of the trusted access point for accessing the emergency call in the received IKEv2 signaling.
  • Step 710 The UE performs a WLAN reselection process according to the obtained indication of the trusted access point for accessing the emergency call.
  • Step 711 The UE accesses the reselected WLAN, and sends an authentication authentication request message to the AAA server by using the reselected WLAN.
  • Step 712 The AAA server receives the authentication authentication request message sent by the UE, and returns an authentication authorization response message.
  • Step 713 After the authentication is passed, the UE sends a WLAN Control Protocol (English: WLAN Control Protocol, WLCP) PDN connection establishment request to the trusted WLAN access gateway TWAG, and the TWAG sends a create session for establishing an emergency call to the PGW. Request.
  • WLAN Control Protocol English: WLAN Control Protocol, WLCP
  • step 714 the PGW replies with create sessionresponse to establish a PDN connection for the emergency call initiated by the UE.
  • Step 715 The create session response received by the UE obtains the IP address assigned by the PGW.
  • the network side device mainly includes an MME, an H-ePDG, a PGW, an HSS/AAAServer, and the like.
  • the emergency call method proposed in Embodiment 4 of the present invention is as shown in FIG. 8 , and the specific processing flow thereof is as follows:
  • step 801 the UE selects the H-ePDG and sends IKEv2 signaling to the selected H-ePDG.
  • the UE selects the H-ePDG, and the address of the H-ePDG may be pre-configured in the UE or obtained by the UE in the DNS query.
  • the UE includes an emergency call indication and current location information of the UE in the IKEv2 signaling.
  • the location information of the UE includes at least one of the following:
  • A The address of the vPLMN.
  • the address of the vPLMN where the UE is currently located is the address of the vPLMN where the UE is currently located.
  • Address location information of the UE currently located such as longitude, dimension, and so on.
  • Step 802 The H-ePDG receives the IKEv2 signaling sent by the UE, and sends an authentication authentication request message to the AAA server.
  • the authentication authentication request message includes an emergency call indication and current location information of the UE.
  • the H-ePDG transmits the received emergency call indication and location information to the AAA server via the authentication authentication request message.
  • Step 803 The AAA server receives the authentication authentication request message sent by the H-ePDG, and obtains the location information of the UE in the received authentication authentication request message.
  • Step 804 The AAA server determines, according to the obtained location information of the UE, that the UE should select 3GPP network access, thereby establishing an emergency call.
  • step 805 the AAA server returns an authentication authorization response message to the H-ePDG.
  • the authentication authorization response message includes an indication for selecting a 3GPP network connection.
  • the indication for selecting a 3GPP network connection may be a 3GPP emergency indication.
  • the UE performs a selective 3GPP network connection according to the received indication for selecting a 3GPP network connection, and accesses the 3GPP network to establish an emergency call.
  • Step 806 The H-ePDG receives an authentication authorization response message replied by the AAA server.
  • Step 807 The H-ePDG obtains an indication for selecting a 3GPP network connection in the received authentication authorization response message.
  • Step 808 The H-ePDG sends the obtained indication for reselecting the ePDG to the UE by using IKEv2 signaling.
  • Step 802' the H-ePDG receives the IKEv2 signaling sent by the UE, and obtains an emergency call indication and current location information of the UE.
  • step 803' the H-ePDG determines that the UE should select 3GPP network access to establish an emergency call.
  • Step 804' the H-ePDG sends the determined indication for reselecting the ePDG to the UE by using IKEv2 signaling.
  • steps 802 to 808, and steps 802' to 808' can save the H-ePDG to AAA authentication authorization process and speed up the emergency call establishment process.
  • Step 809 The UE receives the IKEv2 signaling sent by the H-ePDG, and obtains an indication for selecting the 3GPP network connection in the received IKEv2 signaling.
  • Step 810 The UE selects 3GPP network access according to the obtained indication for selecting a 3GPP network connection.
  • step 811 the UE sends a PDN connection establishment request to the MME.
  • Step 812 The MME receives the PDN connection establishment request, sends a session establishment request to the SGW, and the SGW forwards the message to the PGW.
  • step 813 the PGW replies to the session establishment response message and allocates an IP address to the UE.
  • the UE successfully establishes a PDN connection in the 3GPP network.
  • step 814 the UE establishes an emergency call using the IP address assigned by the PGW.
  • the MME corresponds to the SGSN in the 2/3G network
  • the PDN connection establishment request corresponds to the PDP context activation request.
  • the network side device mainly includes H-ePDG, PGW, V-PCRF, AAA proxy, H-PCRF, HSS/AAAServer, and the like.
  • the emergency call method proposed in Embodiment 5 of the present invention is as shown in FIG. 9, and the specific processing flow is as follows:
  • step 901 the UE selects the H-ePDG and sends IKEv2 signaling to the selected H-ePDG.
  • the UE selects the H-ePDG, and the address of the H-ePDG may be pre-configured in the UE or obtained by the UE in the DNS query.
  • the UE includes an emergency call indication and current location information of the UE in the IKEv2 signaling.
  • the location information may be a vPLMN ID or an SSID or the like.
  • Step 902 The H-ePDG receives the IKEv2 signaling sent by the UE, and sends an authentication authentication request message to the AAA server.
  • the authentication authentication request message includes an emergency call indication and current location information of the UE.
  • the H-ePDG transmits the received emergency call indication and location information to the AAA server via the authentication authentication request message.
  • Step 903 The AAA server receives the authentication authentication request message sent by the H-ePDG, and obtains the location information of the UE in the received authentication authentication request message.
  • Step 904 The AAA server determines, according to the obtained location information of the UE, that the establishment information of the emergency call established by the UE is an indication for accessing the P-CSCF network element that provides the emergency call service.
  • step 905 the AAA server returns an authentication authorization response message to the H-ePDG.
  • the authentication authorization response message includes an indication for accessing the P-CSCF network element that provides the emergency call service.
  • the indication for accessing the P-CSCF network element providing the emergency call service may include an address of the P-CSCF network element corresponding to the location information; and/or an identifier of the P-CSCF network element corresponding to the location information.
  • the indication for accessing the P-CSCF network element that provides the emergency call service is exemplified by taking the address of the P-CSCF network element as an example.
  • the address of the P-CSCF network element will still be referenced in the following steps.
  • Step 906 The H-ePDG receives an authentication authorization response message replied by the AAA server.
  • Step 907 The H-ePDG obtains the address of the P-CSCF network element in the received authentication authorization response message.
  • Step 902' the H-ePDG receives the IKEv2 signaling sent by the UE, and obtains an emergency call indication and current location information of the UE.
  • Step 903' the H-ePDG determines that the UE establishes an emergency call setup information as an indication for accessing the P-CSCF network element providing the emergency call service.
  • Step 904' the H-ePDG sends the address of the P-CSCF network element to the UE through IKEv2 signaling.
  • steps 902 to 907, and steps 902' to 908' can save the H-ePDG to AAA authentication authorization process and speed up the emergency call establishment process.
  • step 908 the H-ePDG sends a create session request to the PGW.
  • the create session request includes the address of the obtained P-CSCF network element.
  • step 909 the PGW obtains the address of the P-CSCF network element in the received create session request.
  • Step 910 The PGW sends the obtained address of the P-CSCF network element to the UE.
  • the PGW sends the obtained P-CSCF network element address to the H-ePDG through the APCO cell, and the H-ePDG sends the P-CSCF network element address in the APCO to the UE by using IKEv2 signaling.
  • the UE obtains the address of the P-CSCF network element, and the UE subsequently initiates registration with the P-CSCF network element corresponding to the address of the P-CSCF network element, and establishes an emergency call service connection.
  • Embodiment 6 of the present invention provides an emergency call method, and the specific processing procedure is as follows:
  • Step 1 Receive an emergency call indication sent by the UE.
  • Step 2 Acquire location information of the UE when receiving the emergency call indication sent by the UE.
  • Step 3 Determine establishment information for establishing an emergency call session according to the location information of the UE.
  • the establishment information includes at least one of the following:
  • the indication for reselecting the ePDG includes: an ePDG address corresponding to the location information; and/or an ePDG identifier corresponding to the location information.
  • the indication for accessing the P-CSCF network element that provides the emergency call service includes: an address of the P-CSCF network element corresponding to the location information; and/or an identifier of the P-CSCF network element corresponding to the location information .
  • Step 4 Send the setup information to the UE.
  • an embodiment of the present invention further provides an emergency call device, as shown in FIG. 10, including:
  • the receiving module 101 is configured to receive an emergency call indication sent by the UE, and transmit the emergency call indication to the acquiring module 102.
  • the obtaining module 102 is configured to acquire location information of the UE when receiving an emergency call indication transmitted by the receiving module.
  • the determining module 103 is configured to determine, according to location information of the UE, establishment information used to establish an emergency call session.
  • the establishment information determined by the determining module 103 includes at least one of the following: an indication for reselecting the evolved packet data gateway ePDG; an indication of a trusted access point for accessing the emergency call. An indication for selecting a third generation partnership plan 3GPP network connection; an indication for accessing a proxy call session control function P-CSCF network element providing emergency call service.
  • the determining, by the determining module 103, the indication for reselecting the ePDG includes: an ePDG address corresponding to the location information; and/or an ePDG identifier corresponding to the location information.
  • the determining, by the determining module 103, the indication for accessing the P-CSCF network element that provides the emergency call service includes: an address of the P-CSCF network element corresponding to the location information; and And an identifier of the P-CSCF network element corresponding to the location information.
  • the sending module 104 is configured to send the setup information to the UE.
  • the sixth embodiment of the present invention further provides an emergency call device, as shown in FIG. 11, comprising: an interface 111, a memory 112, and a signal processor 113.
  • the interface 111, the memory 112, and the signal processor 113 are connected by a bus and transmit data.
  • the interface 111 is configured to receive an emergency call indication sent by the user terminal UE, and transmit the emergency call indication to the signal processor 113.
  • the interface may be one or more of the following: a network interface controller (English: network interface controller, abbreviation: NIC), such as an Ethernet NIC, which can provide a copper wire and/or a fiber interface;
  • a network interface controller (English: network interface controller, abbreviation: NIC), such as an Ethernet NIC, which can provide a copper wire and/or a fiber interface
  • the NIC of the wireless interface such as a wireless local area network (English: wireless local area network, abbreviated as WLAN) NIC.
  • WLAN wireless local area network
  • the memory 112 is configured to store program instructions.
  • the memory may be a volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM); or non-volatile memory (English: non-volatile memory), such as flashing Memory (English: flash memory), hard disk (English: hard disk drive, abbreviated: HDD) or solid state drive (English: solid-state drive, abbreviation: SSD); or a combination of the above types of memory.
  • volatile memory such as random access memory (English: random-access memory, abbreviation: RAM); or non-volatile memory
  • flashing Memory English: flash memory
  • hard disk English: hard disk drive, abbreviated: HDD
  • SSD solid state drive
  • the signal processor 113 is configured to acquire location information of the UE when receiving the emergency call indication transmitted by the interface according to the program instruction stored in the memory 112, and determine to establish an emergency call according to the location information of the UE.
  • the establishment information of the session; the establishment information is transmitted to the interface 111.
  • the signal processor can be a central processing unit (English: central processing unit, abbreviated: CPU), or a combination of a CPU and a hardware chip.
  • the signal processor can also be a network processor (English: network processor, abbreviation: NP). Either a combination of CPU and NP, or a combination of NP and hardware chips.
  • the above hardware chip may be a combination of one or more of the following: an application-specific integrated circuit (ASIC: ASIC), a field programmable logic gate array (English) Text: field-programmable gate array, abbreviation: FPGA), complex programmable logic device (English: complex programmable logic device, abbreviation: CPLD).
  • ASIC application-specific integrated circuit
  • FPGA field programmable logic gate array
  • CPLD complex programmable logic device
  • the establishment information determined by the signal processor 113 includes at least one of the following: an indication for reselecting the evolved packet data gateway ePDG; and a trusted access point for accessing the emergency call.
  • the indication that is used by the signal processor 113 to reselect the ePDG includes: an ePDG address corresponding to the location information; and/or an ePDG identifier corresponding to the location information.
  • the indication that is used by the signal processor 113 to access the P-CSCF network element that provides the emergency call service includes: an address of the P-CSCF network element corresponding to the location information; and/or The identifier of the P-CSCF network element corresponding to the location information.
  • the foregoing interface 111 is further configured to send the setup information to the UE.
  • the seventh embodiment of the present invention provides an emergency call method, and the specific processing procedure is as follows:
  • Step 1 The UE sends an emergency call indication.
  • Step 2 Receive establishment information for establishing an emergency call session corresponding to the location information of the UE.
  • Step 3 Establish an emergency call session according to the establishment information.
  • the establishment information includes at least one of the following:
  • the indication for reselecting the ePDG includes: an ePDG address corresponding to the location information; and/or an ePDG identifier corresponding to the location information.
  • the fourth type an indication for accessing the proxy call session control function P-CSCF network element providing the emergency call service.
  • the indication for accessing the P-CSCF network element providing the emergency call service including: The address of the P-CSCF network element corresponding to the location information; and/or the identifier of the P-CSCF network element corresponding to the location information.
  • establishing an emergency call session according to the establishment information includes: the UE selects an ePDG access of the roaming place to establish an emergency call session.
  • the establishment information is an indication for accessing the trusted access point of the emergency call
  • establishing an emergency call session according to the establishment information, including: the UE selects a trusted WLAN access, and establishes an emergency call.
  • setup information is an indication for selecting a 3GPP network connection
  • establishing an emergency call session according to the setup information includes: the UE selecting a 3GPP network connection, and establishing an emergency call session.
  • establishing an emergency call session according to the establishment information includes: sending a registration request to the P-CSCF network element to establish an emergency Call session.
  • an embodiment of the present invention provides an emergency call device, as shown in FIG. 12, including:
  • the sending module 121 is configured to send an emergency call indication.
  • the receiving module 122 is configured to receive setup information for establishing an emergency call session corresponding to the location information of the UE.
  • the foregoing setup information received by the receiving module 122 includes at least one of the following: an indication for reselecting an evolved packet data gateway ePDG; an indication of a trusted access point for accessing an emergency call; An indication for selecting a third generation partnership plan 3GPP network connection; an indication for accessing a proxy call session control function P-CSCF network element providing emergency call service.
  • the indication for reselecting the ePDG received by the receiving module 122 includes: an ePDG address corresponding to the location information; and/or an ePDG identifier corresponding to the location information.
  • the indication received by the receiving module 122 for accessing the P-CSCF network element that provides the emergency call service includes: an address of the P-CSCF network element corresponding to the location information; and/or the location The identifier of the P-CSCF network element corresponding to the information.
  • the establishing module 123 is configured to establish an emergency call session according to the establishment information.
  • the establishing module 123 is specifically configured to select an ePDG access of the UE roaming to establish an emergency call session.
  • the establishing module 123 is specifically configured to select a trusted WLAN access and establish an emergency call.
  • the establishing module is specifically configured to select a 3GPP network connection and establish an emergency call session.
  • the establishing module is specifically configured to send to the P-CSCF network element. Register a request to establish an emergency call session.
  • the embodiment of the present invention further provides an emergency call device, which has the same structural composition as FIG. 11 and includes an interface 111, a memory 112, and a signal processor 113.
  • the interface 111, the memory 112, and the signal processor 113 are connected by a bus and transmit data.
  • the interface 111 is configured to send an emergency call indication.
  • the interface can be one or more of the following: a NIC that provides a wired interface, such as an Ethernet NIC, which can provide copper and/or fiber optic interfaces; a NIC that provides a wireless interface, such as a WLAN NIC.
  • the memory 112 is configured to store program instructions.
  • the memory may be a volatile memory such as a RAM; or a non-volatile memory such as a flash memory, HDD or SSD; or a combination of the above types of memories
  • the signal processor 113 is configured to receive, according to the program instruction stored in the memory 112, setup information for establishing an emergency call session corresponding to location information of the UE, and establish an emergency call session according to the establishment information.
  • the signal processor can be a CPU or a combination of a CPU and a hardware chip.
  • the signal processor can also be an NP. Either a combination of CPU and NP, or a combination of NP and hardware chips.
  • the above hardware chip may be a combination of one or more of the following: ASIC, FPGA, CPLD.
  • the setup information received by the signal processor 113 includes at least one of the following: an indication for reselecting the evolved packet data gateway ePDG; and a trusted access point for accessing the emergency call.
  • the indication for reselecting the ePDG received by the signal processor 113 includes: an ePDG address corresponding to the location information; and/or an ePDG identifier corresponding to the location information.
  • the indication that is received by the signal processor 113 for accessing the P-CSCF network element that provides the emergency call service includes: an address of the P-CSCF network element corresponding to the location information; and/or The identifier of the P-CSCF network element corresponding to the location information.
  • the setup information received by the signal processor 113 is an indication for reselecting the ePDG
  • the ePDG access of the UE roaming location is selected to establish an emergency call session.
  • a trusted WLAN access is selected to establish an emergency call.
  • the setup information received by the signal processor 113 is an indication for selecting a 3GPP network connection
  • the 3GPP network connection is selected to establish an emergency call session.
  • the setup information received by the signal processor 113 is used to access an indication of a P-CSCF network element that provides an emergency call service, send a registration request to the P-CSCF network element to establish an emergency call session.
  • embodiments of the present invention can be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, read-only optical disks, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, read-only optical disks, optical storage, etc.
  • each flow and/or block, flow diagram, and/or block diagram in the flowchart and/or block diagram can be implemented by computer program instructions. Hehe. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

La présente invention concerne un procédé, un appareil et un dispositif d'appel d'urgence. Le procédé consiste à : lors de la réception d'une instruction d'appel d'urgence envoyée par un UE, obtenir des informations de position de l'UE ; en fonction des informations de position de l'UE, déterminer des informations d'établissement servant à établir une session d'appel d'urgence ; et transmettre les informations d'établissement à l'UE.
PCT/CN2015/079197 2015-05-18 2015-05-18 Procédé, appareil et dispositif d'appel d'urgence WO2016183775A1 (fr)

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