WO2008025231A1 - Procédé et système pour réaliser un appel d'urgence - Google Patents

Procédé et système pour réaliser un appel d'urgence Download PDF

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Publication number
WO2008025231A1
WO2008025231A1 PCT/CN2007/002454 CN2007002454W WO2008025231A1 WO 2008025231 A1 WO2008025231 A1 WO 2008025231A1 CN 2007002454 W CN2007002454 W CN 2007002454W WO 2008025231 A1 WO2008025231 A1 WO 2008025231A1
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WO
WIPO (PCT)
Prior art keywords
user terminal
emergency
emergency service
network
attribute
Prior art date
Application number
PCT/CN2007/002454
Other languages
English (en)
French (fr)
Inventor
Dongjun Wu
Original Assignee
Huawei Technologies Co., Ltd.
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.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2008025231A1 publication Critical patent/WO2008025231A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/50Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
    • H04M3/51Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing
    • H04M3/5116Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing for emergency applications
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/50Connection management for emergency connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M11/00Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems

Definitions

  • the present invention relates to the field of communications, and more particularly to a technology for implementing emergency services. Background technique
  • emergency services are valued by the society, because emergency services can be in personal/public health and A business that provides emergency assistance in a critical situation where safety, life/property are at risk. Therefore, in the communication network to provide high-priority communication services for emergency services, the call is routed to the most suitable public safety access point based on the location information of the calling user and the type of emergency service (PSAP, Public Safety Answering Point ), the PS AP routes the call to the most suitable Emergency Call Centre (ECC), and the ECC quickly provides assistance to the helper.
  • PSAP Public Safety Answering Point
  • PES public switched telephone network/integrated service digital network emulation subsystem
  • NGN Next Generation
  • PSTN public switched telephone network/integrated services digital network
  • the traditional telephone terminal users of the NGN network can inherit the services of the PSTN/ISDN network without perceiving the change from the PSTN/ISDN to the NGN network, and provide emergency services for the user equipment (UE, User Equipment) in the NGN network. .
  • the IP Multimedia Subsystem (IMS, IP Multimedia Subsystem) is proposed by the 3rd Generation Partnership Project (3GPP) in the Release 5 version.
  • the IMS network is a The multimedia control/call control platform on the packet domain supports session-based and non-session-type multimedia services. Its core feature is to use Session Initiation Protocol (SIP) to provide a common service platform for future multimedia applications. .
  • SIP Session Initiation Protocol
  • Step S1 The UE detects that the user initiates an emergency call request.
  • Step S2 At this time, if the UE is performing another call service, and the UE does not have sufficient resources and capabilities (such as the capability of the UE to create a call or the limitation of the bandwidth capability), another call (emergency call) is established, and the UE ends the The call is made, releasing the bearer resources;
  • another call (emergency call) is established, and the UE ends the The call is made, releasing the bearer resources;
  • Step S3 The UE determines, according to its own attributes, whether to perform bearer registration. If the bearer registration is required, the UE initiates bearer registration to the IP access network (IP-CAN).
  • IP-CAN IP access network
  • step S4 when the emergency resource is carried, in order to transmit the IMS-related signaling, the bearer resource is reserved in the IP-CAN.
  • the reservation of the resource requires the UE to provide an indication of the bearer resource reservation initiated for the emergency service, to the IP.
  • -CAN initiates bearer resource reservation;
  • the IP-CAN is required to reserve the bearer resource, and the UE needs to initiate the bearer resource reservation to the IP-CAN.
  • the UE cannot accurately determine whether the IP-CAN requires the UE to initiate an emergency call. Initiating an emergency bearer resource reservation, so this requires interaction between the UE and the IP_CAN, which consumes a large amount of signaling;
  • Step S5 The UE finds a suitable P-CSCF in the local network for the emergency call by the IP-CAN originating proxy call session control unit (P-CSCF, Proxy-Call Session Control Function), and performs step S6. ;
  • P-CSCF IP-CAN originating proxy call session control unit
  • the appropriate P-CSCF in this step refers to the most convenient access point relative to the calling user, that is, according to the ECC called by the access point, the calling user can be rescued at the first time;
  • the UE each time an emergency call is initiated, the UE performs a P-CSCF discovery process, which also affects the connection efficiency of the emergency call;
  • the UE has the capability to register to the IMS network. At this time, if the UE has a user identifier, if there is a SIM card, the UE initiates an IMS by using the IP address in steps S3 and S4 and the P-CSCF in S5.
  • An emergency registration request the emergency registration request includes an IMS emergency public user identifier, and the UE initiates an emergency call including an emergency call indication and an emergency public user identity through the IMS session establishment process; or
  • the UE When the UE does not have the capability to register to the IMS network, for example, if the UE does not have a SIM card with a user identifier, the UE does not need to initiate an IMS emergency registration, and directly initiates an emergency call to the P-CSCF, where the emergency call includes an emergency call indication.
  • the UE establishes an IMS network session and initiates an emergency call.
  • the UE may omit the step of registering with the IMS network when there is no roaming, it is still necessary to determine whether to perform bearer registration, emergency bearer resource reservation, and P-CSCF reselection. Steps, still failed to maximize the efficiency of the emergency business. Summary of the invention
  • the embodiments of the present invention provide a method and a system for implementing an emergency service, which are used to solve the technical problem that the connection efficiency of an emergency call in the prior art is not high.
  • the user terminal obtains emergency service attribute information
  • the user terminal interacts with the network side according to the obtained emergency service attribute
  • the user terminal initiates emergency services to the emergency center through the IMS network.
  • a system for implementing an emergency service which includes at least a user terminal, a network side, and an emergency center, where:
  • the user terminal performs information interaction with the network side according to the emergency service attribute obtained by the user terminal,
  • the emergency service request sent by the user is accessed to the network side;
  • the network side is configured to interact with the user terminal according to the information delivered by the user terminal, and send the emergency service to the emergency center;
  • the emergency center is configured to receive an emergency service transmitted by the network side, and communicate with the user terminal.
  • the user terminal can determine whether the emergency bearer resource reservation needs to be initiated in the emergency service situation, whether the P-CSCF reselection is initiated, and whether the IMS emergency registration is initiated, according to the obtained emergency service attribute.
  • FIG. 1 is a schematic flowchart of a prior art implementation of an emergency service
  • FIG. 2 is a flowchart of a method for implementing an emergency service according to an embodiment of the present invention
  • FIG. 3 is a structural block diagram of a system for implementing an emergency service according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a user terminal according to an embodiment of the present invention. detailed description
  • An embodiment of the present invention provides a method and a system for implementing an emergency service.
  • the core of the method is that, when an emergency service is initiated, the user terminal can determine, according to the emergency service attribute, whether the emergency bearer resource reservation needs to be initiated in the case of an emergency service. Whether to initiate P-CSCF reselection, whether to initiate IMS emergency registration, and whether location information needs to be provided, so that the user terminal can confirm the above information according to the indication of the network, save signaling consumption in initiating emergency service, and improve emergency Business processing efficiency.
  • FIG. 2 it is a basic flowchart of a method for implementing an emergency service according to an embodiment of the present invention. As can be seen from FIG. 2, the method includes the following steps:
  • Step 201 The user terminal obtains emergency service attribute information.
  • the emergency service attribute includes one or more of the following attributes or All:
  • the user terminal needs to initiate the emergency bearer resource reservation attribute of the emergency bearer resource reservation before the user terminal initiates the emergency service; whether the P-CSCF reselection attribute of the P-CSCF reselection needs to be performed before the user terminal initiates the emergency service; Whether the IMS emergency registration attribute of the IMS emergency registration is required before the user terminal initiates the emergency service; whether the user terminal needs to carry the location information attribute of the location where the user terminal carries the emergency service.
  • the emergency service attribute stored by the user terminal may be exchanged with the network information during the emergency service process (such as during the session), and the user terminal obtains from the network side; or before the user initiates the emergency service,
  • the network such as access network attachment or P-CSCF discovery process or IMS emergency registration
  • the user terminal is obtained from the network side; the terminal may also be set on the storage part of the user terminal. Or the device's default settings are obtained.
  • the network side provides the emergency service attribute to the user terminal in the following form: a. Sending the emergency service attribute explicitly (direct mode) to the user terminal, directly indicating that in an emergency service situation, Whether it is necessary to initiate the emergency bearer resource reservation, whether to initiate the P-CSCF reselection, whether to initiate the IMS emergency registration, and whether to carry the user terminal location information when initiating the IMS emergency service.
  • the emergency service attribute is implicitly transmitted (indirect mode) to the user terminal, that is, the network side provides the network related attribute or/and the terminal related attribute to the user terminal, and the user terminal determines the location by the user terminal.
  • the network related attributes include at least one of the following: access network information, interface control unit information, and session control unit information; access network information includes: access network type (such as GPRS network, WLAN network, DSL network, etc.), access network Capability (such as whether the access network supports emergency bearer resource reservation, etc.), access network status (such as whether the access network has roamed, whether the access network is working normally, etc.), and the access control unit information includes: Control unit capability (such as whether the access control unit supports emergency services), access control unit status (such as the access control unit is located in the roaming domain or home domain, access control unit working status), and the session control unit information includes: user subscription data (such as the user signed the DND service), the session control unit capability (such as whether the session control unit supports emergency services), the
  • the access network type is GPRS, and the emergency bearer resource reservation and P-CSCF reselection need to be initiated.
  • the user terminal may obtain the emergency service attribute from the storage part on the user terminal, or according to the agreement with the network side or The configuration of the terminal uses the default emergency service attributes.
  • the emergency service attributes obtained by the user terminal can be provided by the network side (the acquisition form of the emergency service attribute can be divided into explicit or implicit), or obtained by the default setting of the storage part of the user terminal, or obtained according to the network default setting.
  • the default setting may be agreed with the network side, or may be only the default configuration of the user terminal.
  • the emergency service attribute may be provided by the access network or by the IMS network to the user terminal.
  • the first step is: the emergency service attribute is provided by the network side to the user terminal when the user terminal initiates the access network attachment;
  • the network side may provide an emergency service attribute to the user terminal in a normal attaching process or an attaching process for emergency services;
  • the GPRS network when the user terminal UE sends a request attached to the packet switched (PS) domain through the GPRS network, the GPRS network generates an access response message according to the request of the UE, and carries the emergency service attribute in the response message by the IP access.
  • the network is provided to the UE, and the emergency service attribute may be determined by the network side according to the network plan or the status of the UE, the location, and the like, or the location information of the emergency center.
  • the determined emergency service attributes may include: The UE needs to initiate the emergency bearer resource reservation during the service; the UE needs to perform the P-CSCF reselection; the UE needs the IMS emergency registration; the UE needs to provide the location information when issuing the emergency service.
  • the UE receives the access response message, and saves the emergency service attribute information, so as to implement the emergency service attribute indication of the UE by the network side.
  • the UE can learn the network requirements according to the information, and perform information exchange with the network side according to the information, that is, the UE initiates the emergency bearer resource. Reservation, P-CSCF reselection, and IMS emergency registration.
  • the user terminal when the user terminal initiates the access network attach request, the user terminal simultaneously carries the information of obtaining the emergency service attribute to the network side, and the network side sends the emergency service attribute to the user according to the obtained information. terminal.
  • the UE may also access the packet core network through a mobile or fixed access mode.
  • the IP access network may allocate an IP address to the UE, or PPPOE authentication. The UE is notified of the related emergency service attributes.
  • the emergency service attributes may be provided to the UE in the direct manner as described above, or may be provided in an indirect manner, that is, the UE obtains the corresponding emergency service attribute according to the corresponding information, if the network side provides
  • the current network access type is a GPRS network, and the UE determines that an emergency bearer resource reservation needs to be initiated according to the access network type, and needs to perform P-CSCF reselection, requires IMS emergency registration, and needs to provide location information;
  • the network attribute (such as the access network type and the ability to access the network) may determine that only partial information may be provided to the UE.
  • the UE may use the network planning according to the network planning.
  • the default properties determine the emergency business attributes.
  • Manner 2 The network side provides an emergency service attribute to the user terminal when the user terminal initiates the P-CSCF discovery
  • the network side may provide emergency service attributes to the user terminal in a normal P-CSCF discovery process or a P-CSCF discovery process for emergency services;
  • the user terminal UE accesses the network side, taking the packet network as an example.
  • the IP access network After the network side completes the access authentication of the UE, the IP access network notifies the UE of the address of the P-CSCF in the network through the DHCP process.
  • the emergency service attribute information is carried in the provided P-CSCF address; for example, the emergency bearer resource reservation is not required in the emergency service, the P-CSCF reselection needs to be performed, the IMS emergency registration is required, and the location information is not required;
  • the P-CSCF address information provided to the network side is stored, and the emergency service attribute information is saved therein to implement the emergency service attribute indication of the UE by the network side.
  • the UE when the UE detects the emergency service, the UE can learn the network request according to the information, and perform information exchange with the network side according to the information, that is, the UE does not initiate the emergency bearer resource. Reserved, and directly initiate P-CSCF re-election, and IMS emergency registration.
  • the network side may also provide emergency service attributes to the UE in other P-CSCF discovery processes, such as the PDP mode under GPRS.
  • the user terminal when the user terminal initiates the P-CSCF discovery request, the user terminal simultaneously carries the information of acquiring the emergency service attribute to the network side, and the network side sends the emergency service attribute to the user according to the obtained information. terminal.
  • the emergency service attribute can be directly provided to the UE in the P-CSCF discovery process, or can be provided to the UE in an indirect manner, and the UE obtains the corresponding emergency service attribute according to the corresponding information.
  • the network side provides information about whether the current P-CSCF is located in the roaming or home network
  • the UE may determine that the corresponding emergency service attribute is obtained according to the information.
  • the network side provides the emergency service attribute
  • the network may only provide partial information to the UE due to the network attribute determination.
  • the UE may determine the default attribute set according to the network plan.
  • Emergency business attributes when the network side provides the emergency service attribute, the network may only provide partial information to the UE due to the network attribute determination. For the information not provided by the network, the UE may determine the default attribute set according to the network plan.
  • the network side may provide emergency service attributes to the user terminal in a normal IMS registration process or an IMS registration process for emergency services;
  • the IMS registration is initiated by the access control unit, and the registration message is forwarded.
  • the session control unit to the network side performs registration control; according to the network plan, the session control unit returns a registration response message, and carries the emergency service attribute information in the registration response message, and returns the UE to the UE through the access control unit.
  • the session control unit may also return only the registration response message to the access control unit, and the access control unit inserts an emergency service attribute in the registration response message, and returns the message to the UE.
  • the UE saves the emergency service attributes (eg, does not need to initiate emergency bearer resource reservation in the emergency service, does not need to perform P-CSCF reselection, and needs IMS emergency registration).
  • the UE saves the emergency service attribute information
  • the UE can learn the network request according to the information, and enter the network according to the information.
  • the line information exchange that is, the UE does not initiate the emergency bearer resource reservation and the P-CSCF reselection, but first initiates the IMS emergency registration.
  • the user terminal when the user terminal initiates the IMS emergency registration request, the user terminal simultaneously carries the information of obtaining the emergency service attribute to the network side, and the network side sends the emergency service attribute to the information according to the obtained information.
  • the network side sends the emergency service attribute to the information according to the obtained information.
  • the emergency service attributes are not only directly provided to the UE when the registration response message is sent, but also may be provided to the UE in an indirect manner, and the UE may determine according to the corresponding information. Obtaining the corresponding emergency service attribute and saving, if the network side provides information about whether the current UE is located in the roaming or the home network, the UE can determine the corresponding emergency service attribute according to the information. In this embodiment, if the UE is located in the roaming Domain, you need to initiate an IMS emergency registration. In addition, in the present mode, when the network side provides the emergency service attribute, the network may only provide partial information to the UE due to the network attribute. For the information not provided by the network, the UE may determine the default attribute set according to the network plan. Emergency business attributes.
  • Method 4 When the user terminal initiates a session, the network side provides an emergency service attribute to the user terminal for saving;
  • the UE determines that the service request initiated by the user is an emergency service request and the UE does not determine that the service request is an emergency service request.
  • the UE determines that the service request initiated by the user is an emergency service request, specifically: the UE does not store the related emergency service attribute information provided by the network, that is, after the UE completes the normal registration of the core network, and receives the service request of the user, The UE detects that the call request sent by the user is an emergency call request according to the call identifier of the service request (such as the user call number 119); the UE does not initiate emergency bearer resource reservation, P-CSCF reselection and IMS emergency registration, The emergency call request is directly sent to the network side, and the network side determines that the emergency call request violates the emergency service request.
  • the call identifier of the service request such as the user call number 119
  • the emergency call is rejected;
  • the emergency service attributes (such as the need to initiate emergency resource reservation in the emergency service, need to perform P-CSCF reselection, IMS emergency registration, need to provide location information) response message to the user terminal.
  • the emergency service attribute is saved, and information is exchanged with the network side according to the information, that is, the information is initiated. P-CSCF reselection, and IMS emergency registration.
  • the emergency service attribute information may be inserted into the response message by the network side access control unit or the session control unit according to the network plan.
  • the UE When the UE does not determine that the service request initiated by the user is an emergency service request, specifically: after the UE receives the emergency service request initiated by the user, the UE does not detect that the current call is an emergency call, and sends the user according to the ordinary call.
  • the emergency call request is sent to the access control unit on the network side; the access control unit determines that the call is an emergency call according to the call identity of the call, and sends a response message indicating that the call is an emergency call, and the response message
  • the emergency service attribute information is also carried in the emergency service (for example, the emergency bearer resource reservation is not required in the emergency service, and the P-CSCF reselection needs to be performed, and the IMS emergency registration is required).
  • the UE receives the response message, it performs information exchange with the network side, and can initiate P-CSCF reselection, and IMS emergency registration.
  • the emergency service attribute may be provided in a direct manner, or may be provided to the UE in an indirect manner, and the UE determines, according to the corresponding information, that the corresponding emergency service attribute is obtained and saved, for example, whether the current UE is located in the roaming manner. Or the information of the home network, the UE may determine, according to the information, that the corresponding emergency service attribute is obtained, and if the UE is located in the roaming domain, the IMS emergency registration needs to be initiated. In addition, in this mode, when the network side provides the emergency service attribute, it may decide that the partial information may be provided only to the UE due to the network attribute (which may be an agreed-up attribute with the network side or a default configuration of the user terminal). The undelivered information, the UE may determine the emergency service attribute according to the default attribute set by the network plan.
  • the fifth mode, the emergency service attribute may be a default setting set on a storage part of the user terminal, or may be a default setting set on the device;
  • the user terminal may obtain the emergency service attribute from the terminal device of the user terminal, or obtain the emergency service attribute from the user identity module (SIM) of the user terminal;
  • SIM user identity module
  • the subscriber identity module is located on a universal integrated circuit card that stores subscriber identification information that can be inserted or removed from the terminal, such as a SIM card in a handset.
  • the user terminal installs a SIM card with emergency service attribute information
  • the user terminal is
  • the user terminal performs information exchange with the network side according to the emergency service attribute on the installed SIM card, and the user terminal routes the emergency service to the emergency center, promptly helping. Users who need help;
  • emergency services can be initiated in the manner of the prior art.
  • the emergency service attribute information in the SIM card may also be provided to the user terminal by the network side in the above four cases, and the user terminal stores it on the SIM card or the terminal, and is also set in the SIM card.
  • the default settings for emergency service attributes can also be updated in the above four ways. After updating, the UE can use the updated emergency service attributes to interact with the network.
  • the above five methods describe how the user terminal obtains emergency service attributes.
  • an emergency service When an emergency service is detected, it can interact with the network according to the obtained emergency service attributes to implement emergency services.
  • Step 202 When the user terminal or the network side detects the emergency service request initiated by the user, the user terminal interacts with the network side according to the obtained emergency service attribute.
  • the process of interacting with the network side according to the obtained emergency service attributes is:
  • the user terminal sends a bearer resource reservation indication to the IP access network according to the attribute,
  • the IP access network makes a bearer resource reservation for the emergency call;
  • the user terminal initiates a discovery process of P-CSCF reselection according to the attribute, The local network finds P-CSCF;
  • the user terminal performs IMS emergency registration by using the UE's IP address and the P-CSCF according to the attribute.
  • the UE In this step, if the UE is a packet terminal, and the network side is a packet network, the UE directly accesses the packet network for interaction; if the UE is a legacy circuit terminal, the network side is a packet network, Then, the UE accesses the packet network through the access gateway to perform interaction.
  • the confirmation of the emergency service by the user terminal includes the following steps:
  • the user terminal receives the request, and determines, according to the service identifier in the service request, such as a called number, that the service request is an emergency service request.
  • the user terminal determines if the service request is an emergency service request or receives a network notification that the current service request is an emergency service request, if the user terminal is performing another service (for example, a call service), the user terminal according to the user The capability determines if the bearer resource needs to be released.
  • the user terminal's own capability refers to the ability of the user terminal to create a session and the ability to occupy bandwidth. If the user terminal can simultaneously create two sessions and have sufficient bandwidth, the user terminal does not need to release resources. If the user terminal does not have the capability of creating two sessions at the same time, the user terminal needs to release the bearer resources and prioritize the emergency service. At this time, the user terminal is required to initiate bearer registration after the bearer is released according to the requirements of the network side.
  • the confirmation of the emergency service by the network side includes the following steps:
  • the user terminal receives the request, and initiates on the network side according to the normal service
  • the network side determines, according to the service identifier that receives the service request, that the service request is an emergency service request;
  • the network side forms information indicating that the service is an emergency service, and the user terminal is notified.
  • the method for performing emergency service confirmation by the network side in the embodiment can ensure that the user can still send the service to the user in time when the user terminal confirms the service request or the user terminal does not confirm the service request. Request for timely processing.
  • Step 203 The user terminal initiates an emergency service to the emergency center through the IMS network.
  • the user terminal sends an emergency service request to the IMS network, and carries an emergency service indication in the emergency service request.
  • the emergency service request also carries the emergency of the user terminal.
  • the public identity the IMS network sends the emergency service request to the emergency center, and if the location information attribute provided by the network side is required to perform emergency service, the UE needs to send
  • the location information of the user terminal should also be carried in the emergency service.
  • the location information of the UE carrying the UE in the emergency call may be directly transmitted in the SIP message, or may be obtained by accessing the address by carrying an address.
  • the UE may carry or not carry the location information in the emergency service according to the default attribute of the network plan.
  • the emergency center is determined by the network side according to the location information of the UE and the requested emergency service type information, or may also be determined according to the user identifier of the user terminal and the requested emergency service type information.
  • the network side is determined.
  • the method further includes: the step of the emergency center calling back the user terminal through the network side.
  • the proposed emergency service may be an emergency call service or an emergency message service.
  • the user terminal can determine, according to the emergency service attribute, whether to initiate emergency resource reservation, whether to initiate P-CSCF reselection, whether to initiate IMS emergency registration, and to urgently meet emergency services. Bearer resource reservation, P-CSCF reselection, IMS emergency registration requirements while saving signaling consumption, and improving the efficiency of emergency calls.
  • the embodiment of the present invention further provides a system for implementing an emergency service.
  • a user terminal As shown in FIG. 3, at least a user terminal, a network side, and an emergency center are included, where:
  • the user terminal performs information exchange with the network side according to the obtained emergency service attribute, and accesses the emergency service request sent by the user to the network side; the network side is configured to use the information transmitted by the user terminal, and The user terminal performs an interaction to send the emergency service to the emergency center; the emergency center is configured to receive an emergency service transmitted by the network side, and communicate with the user terminal.
  • the user terminal includes at least a user service request receiving unit, an emergency service attribute obtaining unit, an information interaction unit, and a first service request confirming unit, where:
  • the user service request receiving unit is configured to receive a service request initiated by the user
  • the first service request confirming unit is configured to confirm whether the service request received by the user service request receiving unit is an emergency service, and transmit the confirmation information to the information interaction unit;
  • the emergency service attribute obtaining unit is configured to obtain an emergency service attribute from a default setting of the network side device or the user terminal;
  • the information interaction unit is configured to interact with the network side according to the confirmation result of the service request confirmation unit and the information acquired by the emergency service attribute acquisition unit.
  • the network side may provide the indirect manner, and the user terminal further includes: an emergency service information receiving unit, configured to receive the information sent by the network side, and receive the information according to the receiving The information determines the emergency service attribute and is transmitted to the information interaction unit, which is called when an emergency service occurs.
  • an emergency service information receiving unit configured to receive the information sent by the network side, and receive the information according to the receiving The information determines the emergency service attribute and is transmitted to the information interaction unit, which is called when an emergency service occurs.
  • the network side includes at least an IP access network, a network control unit, and an emergency service attribute providing unit:
  • the IP access network is configured to provide an IP bearer channel for the user terminal; the terminal access of the IP access network includes implementing user terminal attachment, IP address allocation, and bearer resource control function; in the present invention, IP
  • IP The CAN may be a network such as a GRPS, a WLAN, a DSL, a LAN, or a PacketCable; the network control unit is configured to complete registration and a session of the user terminal on the network side; and the emergency service attribute providing unit is configured to The IP access network or/and the control of the network control unit provide the emergency service attributes to the user terminal.
  • the emergency service attribute providing unit may be set in an IP access network, or an access gateway control unit, or a proxy call session control unit, or a service call session control unit, or an emergency call session control unit, to implement a network.
  • the side provides emergency service attributes to the user terminal for the purpose.
  • the network control unit includes: an access control unit, configured to provide an access address to the IP access network, complete the access of the user terminal at the request of the user terminal, and transmit the received information to The session control unit; in this embodiment, the access control unit may be the P-CSCF and the AGCF in the existing IMS and PES specifications, and the interface between the user access control unit and the user terminal may be an E2 interface, when the user terminal passes When the SIP protocol is accessed, the interface protocol is SIP. When the user terminal accesses the access control unit through the access gateway, the interface protocol of the access gateway and the access control unit may be SIP, H248 or other. Media control protocol;
  • the session control unit may be an S-CSCF, an E-CSCF, an I-CSCF, or a P-CSCF in the existing IMS specification; and an interface such as an E3 between the access control unit and the access control unit, the interface It can be an internal interface or an external interface using the SIP protocol.
  • the network side further includes:
  • the second service request confirming unit is configured to confirm whether the service request that the user terminal accesses the network side is an emergency service, and provide information that the service is an emergency service to the emergency service attribute providing unit.
  • the user terminal is a packet terminal or a legacy circuit terminal.
  • the emergency center (PSAP/ECC) is placed in a packet network or a legacy circuit network and is indirectly connected to the network control unit either directly or through a gateway. For example, when connecting indirectly, you can connect through other nodes, such as the media gateway control unit.
  • the network side further includes: an access gateway for accessing the legacy circuit terminal to the IP access network through the access network.
  • the network control unit may be an access gateway control unit (AGCF), a proxy call session control unit (P-CSCF), a serving call session control unit (S-CSCF), an emergency call session control unit (E).
  • AGCF access gateway control unit
  • P-CSCF proxy call session control unit
  • S-CSCF serving call session control unit
  • E emergency call session control unit
  • -CSCF emergency call session control unit
  • the emergency service attribute providing unit may be located in an IP access network, or may be located in an IMS network, an access gateway control function (AGCF), a proxy call session control unit (P-CSCF), and a serving call session control unit (S-CSCF). ), Emergency Call Session Control Unit (E-CSCF).
  • AGCF access gateway control function
  • P-CSCF proxy call session control unit
  • S-CSCF serving call session control unit
  • E-CSCF Emergency Call Session Control Unit
  • the user service request receiving unit of the packet terminal After receiving the service request initiated by the user, the user service request receiving unit of the packet terminal confirms whether the service request is an emergency service request by the first service request confirmation unit according to the network plan, if the first service request confirmation unit confirms that the service request is
  • the information exchange unit performs information exchange with the network side according to the emergency service attribute obtained by the emergency service attribute acquisition unit, including whether to reserve the bearer resource, whether the P-CSCF is reselected, whether the IMS is registered, or the network side network.
  • the control unit routes the emergency service to the emergency center to implement the emergency service of the user.
  • the confirmation of whether the service request is an emergency service request according to the network plan may be confirmed by the second service request confirming unit on the network side.
  • the information exchange unit of the user terminal can interact with the IP access network and the network control unit of the network side, and the emergency service attribute providing unit of the network side Information is provided to the user.
  • the network side provides emergency service attributes to the user terminal, refer to the relevant description of the method.
  • the user terminal can reduce interaction with the network side, save signaling consumption, and improve the efficiency of emergency services.
  • the spirit and scope of the Ming The spirit and scope of the Ming.

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Description

实现紧急业务的方法及其系统
技术领域
本发明涉及通信领域, 尤其是指一种实现紧急业务的技术。 背景技术
在社会发展过程中, 无论是传统电话网的通信时代, 还是现在高速的第三 代、 甚至是下一代通信网络时代, 紧急业务都被社会所重视, 因为紧急业务可 以在个人 /公共的健康和安全、 生命 /财产遭遇危险的危急情况下, 提供紧急帮助 的业务。 因此, 在通信网络要为紧急业务提供高优先级的通信服务, 根据对主 叫用户的位置信息和紧急业务类型的判断将呼叫路由到最适合的公共安全接入 点 (PSAP, Public Safety Answering Point ), 由该 PS AP将呼叫路由到最适合的 紧急呼叫中心( ECC, Emergency Call Centre )处理, 再由该 ECC迅速为求助者 提供帮助。
随着分组技术的不断成熟, 基于电路交换的传统电信网络正在向着基于分 组交换的宽带电信网发展, 而使用 SIP作为分组电信核心网的呼叫控制信令则 是当前的技术发展趋势之一, 为了支持传统电路用户在下一代网络中的接入, 欧洲电信标准组织 ( ETSI, European Telecommunications Standards Institute )提 出了一种公共电话交换网 /综合业务数字网仿真子系统(PES ) 的方案。 PES 是 ETSI标准组织定义的下一代(NGN, Next Generation Network ) 网络架构中业 务层的一个子系统,该子系统在 NGN网络中能为传统电话终端仿真公共电话交 换网 /综合业务数字网 (PSTN/ISDN )网络。 这样, NGN网络的传统电话终端用 户, 可以继承 PSTN/ISDN网络的业务, 而不会感知到从 PSTN/ISDN到 NGN网 络的改变, 在 NGN网络中为用户终端 (UE, User Equipment )提供紧急服务。
3GPP的 TS23.167定义了 IMS网络中紧急业务的实现流程。其中 IP多媒体 子系统( IMS , IP Multimedia Subsystem )是第三代移动通信标准化组织( 3GPP , 3rd Generation Partnership Project )在 Release 5版本中提出的, 该 IMS网络是一 个在分组域上的多媒体控制 /呼叫控制平台,支持会话类和非会话类多媒体业务, 其核心特点是釆用会话发起协议( SIP, Session Initiation Protocol )可以为未来 多媒体应用提供一个通用的业务平台。
根据现有技术的紧急业务的定义,在 UE发起紧急业务时, 实现流程参考图 1所示:
步骤 Sl、 UE检测到用户发起紧急呼叫请求;
步骤 S2、 此时如 UE正在进行一项其它呼叫业务, 并且所述 UE没有足够 的资源和能力(如 UE创建呼叫的能力或带宽能力的限制)再建立一个呼叫 (紧 急呼叫), UE结束正在进行的呼叫, 释放承载资源;
步骤 S3、 UE根据自身的属性判断是否要进行承载注册,如需要进行承载注 册, UE向 IP接入网 (IP-CAN )发起承载注册;
步骤 S4、 在紧急资源承载时, 为了传送 IMS相关信令, 要求在 IP-CAN预 留承载资源,这个资源的预留需要 UE提供一个为紧急业务而发起的承载资源预 留的指示, 向 IP-CAN发起承载资源预留;
在此步骤中, 要求 IP-CAN预留承载资源, UE需要到 IP-CAN发起承载资 源预留, 但是根据现有技术的内容, UE不能准确判断 IP-CAN是否要求 UE发 起在紧急呼叫时需要发起紧急承载资源预留, 所以这就需要 UE与 IP _ CAN之 间进行交互, 消耗了大量的信令;
步骤 S5、 UE在 IP - CAN发起代理呼叫会话控制单元( P - CSCF, Proxy - Call Session Control Function )发现的过程, 为所述紧急呼叫在本地网络中找 到一个合适的 P - CSCF, 执行步骤 S6;
其中该步骤中合适的 P - CSCF是指相对主叫用户最方便的接入点, 也就是 说, 根据这个接入点所呼叫的 ECC可以在第一时间使主叫用户获得救助;
在现有技术中, 每次发起紧急呼叫时, UE均要执行 P - CSCF发现过程, 这样也影响了紧急呼叫的接续效率;
S6、 UE有能力注册到 IMS网络时, 此时如 UE具有带有用户标识, 如有 SIM卡, UE釆用步骤 S3、 S4中的 IP地址以及 S5中的 P - CSCF发起一次 IMS 紧急注册, 该紧急注册请求中包含一个 IMS紧急公共用户标识, UE通过 IMS 会话建立流程发起包含一个紧急呼叫指示和紧急公共用户标识的紧急呼叫; 或,
UE没有能力注册到 IMS网络时, 如 UE不具有带有用户标识的 SIM卡, 则 UE不必发起 IMS紧急注册, 直接向 P - CSCF发起紧急呼叫, 此时该紧急呼 叫中包括一个紧急呼叫指示。
S7、 UE建立 IMS网络会话, 发起紧急呼叫。
在该方案中, 发生紧急呼叫时, 只要 UE具有能力注册到 IMS网络中, 就 必须进行 IMS紧急注册后, 才能发起紧急呼叫, 这样也降低了紧急呼叫的接续 效率。并且在现有技术的紧急呼叫业务中, 没有将 UE的位置信息作为一项重要 的业务属性, 所以在紧急呼叫时也有对 UE位置做出错误的判断。
另外, 在现有技术中, 考虑到提高紧急呼叫的接续效率, 业界考虑到绝大 多数的 UE都已经进行了普通注册, 所以如果 UE没有进行漫游时, 用户可以不 发起 IMS紧急注册, 这样就在一定程度上提高了仅仅呼叫的接续效率。
综上所述,现有技术中进行紧急业务时,尽管 UE在没有漫游时可以省略向 IMS网络注册的步骤, 但是还是需要判断是否进行承载注册、 紧急承载资源预 留以及 P - CSCF重选的步骤, 还是没能最大程度的提高紧急业务的接续效率。 发明内容
本发明实施例提供一种实现紧急业务的方法及系统, 用以解决现有技术中 存在紧急呼叫的接续效率不高的技术问题。
本发明实施例提供的一种实现紧急业务的方法包括以下步骤:
用户终端获得紧急业务属性信息;
所述用户终端按照获得的紧急业务属性与网络侧进行交互;
用户终端通过 IMS网络向紧急中心发起紧急业务。
本发明实施例提供的提供一种实现紧急业务的系统, 至少包括用户终端、 网络侧以及紧急中心, 其中:
所述用户终端, 根据其获取的紧急业务属性与所述网络侧进行信息交互, 将用户发出的紧急业务请求接入所述网络侧;
所述网络侧, 用于根据用户终端传递的信息, 与所述用户终端进行交互, 将所述紧急业务发送给所述紧急中心;
所述紧急中心, 用于接收所述网络侧传送的紧急业务, 与所述用户终端通 信。
通过本发明实施例提供的方案, 用户终端可以根据获得紧急业务属性, 确 定在紧急业务情况下,是否需要发起紧急承载资源预留,是否发起 P-CSCF重选, 是否发起 IMS紧急注册, 在满足紧急业务中紧急承载资源预留, P-CSCF重选, IMS紧急注册要求的同时节约信令消耗, 又提高紧急业务的效率。 附图说明
图 1为现有技术实现紧急业务进行的流程示意图;
图 2为本发明实施例实现紧急业务的方法流程图;
图 3为本发明实施例实现紧急业务的系统结构框图;
图 4为本发明实施例的用户终端的结构示意图。 具体实施方式
本发明实施例提供了一种实现紧急业务的方法及系统, 其核心在于, 在发 起紧急业务时, 用户终端可以根据紧急业务属性, 确定在紧急业务情况下, 是 否需要发起紧急承载资源预留, 是否发起 P-CSCF重选, 是否发起 IMS紧急注 册, 是否需要提供位置信息, 这样就使用户终端可以根据网络的指示来确认上 述信息, 节省了发起紧急业务中的信令消耗, 同时提高了紧急业务的处理效率。 参考图 2所示, 为本发明实施例实现紧急业务的方法的基本流程图, 由图 2 可以看出, 本方法包括以下步骤:
步骤 201、 用户终端获得紧急业务属性信息;
在本步骤 201 中, 所述紧急业务属性包括以下属性中的一种或者几种或者 全部:
所述用户终端发起紧急业务前是否需要发起紧急承载资源预留的紧急承载 资源预留属性; 所述用户终端发起紧急业务前是否需要执行 P - CSCF重选的 P - CSCF重选属性;所述用户终端发起紧急业务前是否需要 IMS紧急注册的 IMS 紧急注册属性; 所述用户终端进行紧急业务时是否需要携带其所在位置的位置 信息属性。
在本步骤中,所述用户终端存储的紧急业务属性可以在紧急业务过程中(如 会话过程中)通过和网络信息交互, 所述用户终端从网络侧获得; 也可以在用 户发起紧急业务前与网络的交互过程中 (如接入网附着或 P - CSCF发现过程或 IMS紧急注册时), 所述用户终端从网络侧获得; 所述终端也可以由设置在所述 用户终端上的存储部分上或设备的默认设置获得。
在本实施例中, 网络侧釆用以下形式将所述紧急业务属性提供给用户终端: a、 将紧急业务属性显式(直接方式)发送给所述用户终端, 直接指示在紧 急业务情况下, 是否需要发起紧急承载资源预留, 是否发起 P-CSCF重选, 是否 发起 IMS紧急注册, 发起 IMS紧急业务时是否携带用户终端位置信息。
b、 将紧急业务属性隐式(间接方式)发送给所述用户终端, 即网络侧将网 络相关属性或 /和终端相关属性提供给所述用户终端, 由所述用户终端对其判断 确定出所述紧急业务属性。 网络相关属性包括以下至少一种: 接入网络信息, 接口控制单元信息, 会话控制单元信息; 接入网络信息包括: 接入网络类型(如 GPRS网络, WLAN网络, DSL网络等) , 接入网络能力 (如接入网络是否至支 持紧急承载资源预留等) , 接入网络状态 (如接入网络是否发生了漫游, 接入 网络工作状态是否正常等) , 接入控制单元信息包括: 接入控制单元能力 (如 接入控制单元是否支持紧急业务) , 接入控制单元状态 (如接入控制单元位于 漫游域或归属域, 接入控制单元工作状态) , 会话控制单元信息包括: 用户签 约数据(如用户签约了免打扰业务) , 会话控制单元能力 (如会话控制单元是 否支持紧急业务) , 会话控制单元状态 (如会话控制单元状态) ; 终端相关属 性包括但不局限于: 终端类型 (固定, 移动) , 终端能力 (如是否支持发起紧 急注册) , 终端漫游状态 (漫游, 不漫游) ; 用户终端可以根据该隐式的紧急 业务属性判断获得相应的紧急业务属性, 若用户终端位于漫游域内就需要发起
IMS紧急注册, 则接入网络类型是 GPRS就需要发起紧急承载资源预留和 P-CSCF 重选。
如果网络侧将紧急业务属性中的部分信息发送给所述用户终端, 其中网络 侧没有发生的业务属性, 用户终端可以从用户终端上的存储部分获得紧急业务 属性, 或者根据与网络侧的约定或终端的配置使用默认的紧急业务属性。
用户终端获得的紧急业务属性可以由网络侧提供 (紧急业务属性的获得形 式可以分为显式或隐式) , 或由用户终端的存储部分的默认设置获得, 或按照 网络默认设置获得。 其中所述默认设置可以是和网络侧约定的, 也可以仅仅是 用户终端的默认配置。 当所述用户终端从网络侧获得紧急业务属性时, 所述的 紧急业务属性可以由接入网络, 也可以由 IMS网络提供给用户终端。
以下釆用具体的例子对用户终端如何获得紧急业务属性信息进行说明: 方式一、 所述紧急业务属性是由网络侧在所述用户终端发起接入网附着时 提供给所述用户终端;
网络侧可以在普通附着过程或者用于紧急业务的附着过程提供紧急业务属 性给用户终端;
例如: 用户终端 UE 通过 GPRS 网络发送附着到分组交换(PS , Packet Switched )域的请求时, GPRS网络根据 UE的请求生成接入响应消息, 同时将 紧急业务属性携带在响应消息中由 IP接入网提供给 UE, 该紧急业务属性可以 是网络侧根据网络规划或者 UE的状态,位置等信息,或紧急中心的位置信息确 定, 在本实施例中, 所确定的紧急业务属性可能包括: 在紧急业务时 UE需要发 起紧急承载资源预留; UE需要执行 P-CSCF重选; UE需要 IMS紧急注册; UE 在发出紧急业务时需要提供位置信息。 所述 UE接收到接入响应消息, 并保存该 紧急业务属性信息, 实现网络侧对 UE的紧急业务属性指示。 鉴于 UE保存了所 述的紧急业务属性信息, 当 UE检测到紧急业务时, UE根据该信息就可以了解 到网络的要求, 并按照该信息与网络侧进行信息交互, 即 UE发起紧急承载资源 预留、 P-CSCF重选、 和 IMS紧急注册。
另外, 在本实施例中, 所述用户终端在发起接入网络附着请求时, 同时携 带向网络侧获取紧急业务属性的信息, 网络侧根据该获取信息将所述紧急业务 属性发送给所述用户终端。
在本实施例中, UE也可以通过移动或固定接入方式接入到分组核心网, 在 以固定方式接入分组核心网时, IP接入网可以在给 UE分配 IP地址, 或者 PPPOE 认证时, 通知 UE相关紧急业务属性; 另外, 紧急业务属性不仅可以以上述直接 方式提供给 UE保存, 也可以以间接方式提供, 也就是由 UE根据相应信息判断获 得相应的紧急业务属性, 若网络侧提供当前网络接入类型是 GPRS网络, 则 UE 根据该接入网络类型确定在紧急呼叫时, 需要发起紧急承载资源预留, 需要执 行 P-CSCF重选, 需要 IMS紧急注册, 需要提供位置信息; 网络侧在提供紧急业 务属性时, 可能会由于网络属性(如接入网络类型, 接入网络的能力) 决定可 以仅向 UE提供部分信息, 对于网络未提供的信息, UE可以釆用根据网络规划设 置的默认属性确定出紧急业务属性。
方式二、 网络侧在用户终端发起 P - CSCF发现时将紧急业务属性提供给所 述用户终端;
网络侧可以在普通 P-CSCF发现过程或者用于紧急业务的 P-CSCF发现过程 中提供紧急业务属性给用户终端;
例如: 用户终端 UE通过接入到网络侧, 以分组网络为例, 网络侧在完成 UE 的接入认证后, 通过 DHCP过程, 由 IP接入网将网络中 P-CSCF的地址通知 UE, 同时在提供的 P - CSCF地址中携带紧急业务属性信息; 如: 在紧急业务时不需 要发起紧急承载资源预留, 需要执行 P-CSCF重选, 需要 IMS紧急注册, 不需要 提供位置信息; UE接收到网络侧提供的 P - CSCF地址信息, 并保存其中的紧急 业务属性信息, 实现网络侧对 UE的紧急业务属性指示。 鉴于 UE保存了所述的紧 急业务属性信息, 当 UE检测到紧急业务时, UE 居该信息就可以了解到网络的 要求, 并按照该信息与网络侧进行信息交互, 即 UE不发起紧急承载资源预留, 而直接发起 P-CSCF重选, 和 IMS紧急注册。 当然在本实施例中, 网络侧也可以在其它 P-CSCF发现过程中,如 GPRS下的 PDP方式, 将紧急业务属性提供给 UE。
另外, 在本实施例中, 所述用户终端在发起 P - CSCF发现请求时, 同时携 带向网络侧获取紧急业务属性的信息, 网络侧根据该获取信息将所述紧急业务 属性发送给所述用户终端。
在本方式二中, 紧急业务属性不仅可以直接在 P - CSCF发现过程中完全提 供给所述 UE; 也可以釆用间接方式提供给所述 UE, 由 UE根据相应信息判断获 得相应的紧急业务属性 , 若网络侧提供当前 P-CSCF是否位于漫游或归属网络的 信息, 则 UE^^艮据该信息可以判断获得相应的紧急业务属性, 在本实施例中, 若 P-CSCF位于漫游域, 则不需要发起 P-CSCF重选。 另外, 在本方式中, 网络侧在 提供紧急业务属性时, 可能会由于网络属性决定可以仅向 UE提供部分信息, 对 于网络未提供的信息, UE可以根据网络规划釆用设置的默认属性确定出紧急业 务属性。
方式三、 网络侧在用户终端发起 IMS注册时, 由网络侧将紧急业务属性提供 给所述用户终端;
网络侧可以在普通 IMS注册过程或者用于紧急业务的 IMS注册过程中提供 紧急业务属性给用户终端;
具体为: 当 UE完成接入网络的附着和 P-CSCF发现, 根据 P-CSCF发现过程 中获得的网络侧接入控制单元的地址, 通过该接入控制单元发起 IMS注册, 该注 册消息被转发到网络侧的会话控制单元执行注册控制; 根据网络规划, 所述会 话控制单元返回注册响应消息, 并在该注册响应消息中携带紧急业务属性信息, 通过所述接入控制单元返回给所述 UE; 在本实施例中, 所述会话控制单元也可 以只返回注册响应消息至所述接入控制单元, 由所述接入控制单元在该注册响 应消息中插入紧急业务属性, 返回给所述 UE, 所述 UE保存其中的紧急业务属性 (如: 在紧急业务时不需要发起紧急承载资源预留, 不需要执行 P-CSCF重选, 需要 IMS紧急注册) 。 鉴于 UE保存了所述的紧急业务属性信息, 当 UE检测到紧 急业务时, UE根据该信息就可以了解到网络的要求, 并按照该信息与网络侧进 行信息交互, 即 UE不发起紧急承载资源预留和 P-CSCF重选, 而是首先发起 IMS 紧急注册。
另外, 在本实施例中, 所述用户终端在发起 IMS紧急注册请求时, 同时携带 向网络侧获取紧急业务属性的信息, 网络侧才艮据该获取信息将所述紧急业务属 性发送给所述用户终端。
在本方式三中, 与上述两种方式一样, 紧急业务属性不仅可以直接在注册 响应消息发送时完全提供给所述 UE;也可以釆用间接方式提供给所述 UE, 由 UE 根据相应信息判断获得相应的紧急业务属性并保存, 若网络侧提供当前 UE是否 位于漫游或归属网络的信息, 则 UE才艮据该信息可以判断获得相应的紧急业务属 性, 在本实施例中, 若 UE位于漫游域, 则需要发起 IMS紧急注册。 另外, 在本 方式中, 网络侧在提供紧急业务属性时, 可能会由于网络属性决定可以仅向 UE 提供部分信息, 对于网络未提供的信息, UE可以根据网络规划釆用设置的默认 属性确定出紧急业务属性。
方式四、 网络侧在用户终端发起会话时, 将紧急业务属性提供给所述用户 终端保存;
以下分两种情况说明上述方式,即在 UE确定用户发起的业务请求为紧急业 务请求以及 UE没有确定出该业务请求为紧急业务请求的情况。
UE确定出用户发起的业务请求为紧急业务请求的情况, 具体为: 由于所述 UE没有存储网络提供的有关紧急业务属性信息, 即 UE完成核心网的普通注册 后 ,收到用户的业务请求, UE根据该业务请求的呼叫标识(如用户呼叫号码 119 ) 检测到用户发出的呼叫请求为紧急呼叫请求;所述 UE没有发起紧急承载资源预 留, P-CSCF重选和 IMS紧急注册, 将该该紧急呼叫请求直接发送到网络侧, 网 络侧判断该紧急呼叫请求违背紧急业务要求, 若网络侧可能认为本次呼叫需要 发起 P-CSCF重选,则因此拒绝该紧急呼叫;网络侧发送携带有紧急业务属性(如 在紧急业务时不需要发起紧急承载资源预留,需要执行 P-CSCF重选,需要 IMS 紧急注册, 需要提供位置信息)的响应消息至所述用户终端。 当 UE收到该响应 消息时, 保存该紧急业务属性, 并按照该信息与网络侧进行信息交互, 即发起 P-CSCF重选, 和 IMS紧急注册。
在本实施例中, 该紧急业务属性信息可以根据网络规划由网络侧的接入控 制单元或会话控制单元插入在响应消息中。
当 UE未确定出用户发起的业务请求为紧急业务请求的情况, 具体为: UE 收到用户发起的紧急业务请求后, UE没有检测到本次呼叫是紧急呼叫, 并按照 普通呼叫将用户发出的紧急呼叫请求发送至所述网络侧的接入控制单元; 所述 接入控制单元根据该呼叫的呼叫标识确定该呼叫为紧急呼叫, 并发送指示该呼 叫为紧急呼叫的响应消息, 且该响应消息中还携带所述紧急业务属性信息(如: 在紧急业务时不需要发起紧急承载资源预留,需要执行 P-CSCF重选,需要 IMS 紧急注册)。 这样, 当 UE收到该响应消息时, 与网络侧进行信息交互, 可以发 起 P-CSCF重选, 和 IMS紧急注册。
在这种方式中, 该紧急业务属性可以以直接方式提供, 也可以釆用间接方 式提供给所述 UE, 由 UE根据相应信息判断获得相应的紧急业务属性并保存, 如 提供当前 UE是否位于漫游或归属网络的信息, UE根据该信息可以判断获得相应 的紧急业务属性, 如 UE位于漫游域内就需要发起 IMS紧急注册。 另外, 在本方 式中, 网络侧在提供紧急业务属性时, 可能会由于网络属性(可以是和网络侧 约定属性, 也可以是用户终端的默认配置) 决定可以仅向 UE提供部分信息, 对 于网络未提供的信息, UE可以根据网络规划釆用设置的默认属性确定出紧急业 务属性。
方式五、 所述紧急业务属性可以为设置在用户终端上的存储部分上的默认 设置, 也可以为设置在设备上的默认设置;
当紧急业务属性由用户终端的存储部分的默认设置获得时, 用户终端可以 从用户终端的终端设备中获得紧急业务属性, 也可以从用户终端的用户标识模 块(SIM ) 中获得紧急业务属性;
用户标识模块位于一个通用集成电路卡上, 它存储用户标识信息, 可以从 终端中插入或取出, 如手机中的 SIM卡。
如果所述用户终端安装了具有紧急业务属性信息的 SIM卡,所述用户终端在 确定用户发起的业务请求为紧急业务请求时,该用户终端即会按照安装的 SIM卡 上的紧急业务属性与网络侧进行信息交互, 所述用户终端将紧急业务路由至所 述紧急中心, 及时帮助需要帮助的用户;
如果所述用户终端没有安装具有紧急业务属性信息的 SIM卡,就可以按照现 有技术的方式发起紧急业务。
在本方式中, SIM卡中的紧急业务属性信息也可能是网络侧在上述四种情况 下提供给用户终端, 所述用户终端将其存储在 SIM卡或终端上, 另外对于 SIM卡 中设置的有关紧急业务属性的默认设置也可以釆用上述四种方式进行更新, 对 其更新后, UE可以釆用更新的紧急业务属性与网络交互。
上述五种方式描述了用户终端如何获得紧急业务属性的几种情况, 在检测 到紧急业务时, 就可以按照获得的紧急业务属性与网络交互, 实现紧急业务。
步骤 202、 当用户终端或网络侧检测到用户发起的紧急业务请求时, 所述用 户终端按照获得的紧急业务属性与网络侧进行交互;
按照获得的紧急业务属性与网络侧进行交互的过程为:
若网络侧提供的所述紧急承载资源预留属性是要求所述用户端进行紧急业 务时需要进行紧急承载预留, 则所述用户终端根据该属性向 IP接入网发送承载 资源预留指示, 所述 IP接入网为该紧急呼叫做出承载资源预留;
若网络侧提供的所述 P _ CSCF重选属性是要求所述用户终端进行紧急业务 时需要进行 P - CSCF重选, 则所述用户终端根据该属性发起 P - CSCF重选的 发现过程, 在本地网络找到 P - CSCF;
若网络侧提供的所述 IMS紧急注册属性是要求所述用户终端进行紧急业务 时需要进行 IMS紧急注册, 则所述用户终端根据该属性利用 UE的 IP地址以及 P - CSCF进行 IMS紧急注册。
在该步骤中, 若所述 UE是分组终端, 所述网络侧是分组网络, 则所述 UE 直接接入分组网络进行交互; 若所述 UE是传统电路终端, 所述网络侧是分组网 络, 则所述 UE通过接入网关接入分组网络进行交互。
在此步骤中, 对于用户发起的业务请求是否为紧急业务的确认可以由用户 终端做出, 也可以由网络侧 #丈出后通知用户终端;
由所述用户终端对该紧急业务的确认包括以下步骤:
Α、 用户发起业务请求;
Β、 所述用户终端接收到该请求, 并根据所述业务请求中的业务标识, 如被 叫号码; 确定该业务请求为紧急业务请求。
所述用户终端确定该业务请求为紧急业务请求或收到网络通知当前业务请 求为紧急业务请求时, 如果所述用户终端正在进行另一项业务(例如, 呼叫业 务), 所述用户终端根据自身能力确定是否需要释放承载资源。 其中所述用户终 端的自身能力是指用户终端创建会话的能力以及具有占用带宽的能力等, 若所 述用户终端可以同时创建两个会话并且具有足够的带宽, 则该用户终端就无需 进行资源释放; 若所述用户终端不具有同时创建两个会话的能力时, 则该用户 终端就需要释放承载资源, 优先处理紧急业务。 此时还需要所述用户终端根据 网络侧的需求在承载释放后发起承载注册。
由所述网络侧对该紧急业务的确认包括以下步骤:
Al、 用户发起紧急业务请求;
Bl、 用户终端接收到该请求, 并按照普通业务在网络侧发起;
Cl、 网络侧根据接收到业务请求的业务标识确定所述业务请求为紧急业务 请求;
Dl、 网络侧形成信息指示将该业务为紧急业务的信息通知所述用户终端。 本实施例中所提出的由网络侧进行紧急业务确认的方式, 可以保证在用户 终端对业务请求做出确认错误或用户终端未对业务请求进行确认的情况下, 仍 能及时对用户发出的业务请求进行及时的处理。
步骤 203、 用户终端通过 IMS网络向紧急中心发起紧急业务。
在此步骤中, 用户终端向 IMS网络发送紧急业务请求, 并且在紧急业务请 求中携带紧急业务指示, 如果该用户终端装设了 SIM卡时, 所述的紧急业务请 求还会携带用户终端的紧急公共标识, IMS 网络发送上述紧急业务请求至紧急 中心,并且如网络侧提供的所述位置信息属性是要求 UE进行紧急业务时需要发 送位置信息时, 在所述紧急业务中还应该携带所述用户终端的位置信息。 UE在 紧急呼叫中携带 UE的位置信息可以直接在 SIP消息中传递,也可以通过携带一 个地址, 通过访问该地址可以获得 UE的位置信息。
如果在网络侧提供的紧急业务属性中没有指示 UE进行紧急业务时需要发 送位置信息,则 UE可以根据网络规划的默认属性在紧急业务中携带或不携带位 置信息。
在本实施例中, 紧急中心 (PSAP/ECC )是根据所述 UE的位置信息以及请 求的紧急业务类型信息由网络侧确定, 或也可以根据用户终端的用户标识以及 请求的紧急业务类型信息由网络侧确定。
本发明实施例提供的方案中, 为了能更及时的对紧急业务请求者提供帮助, 还包括: 所述紧急中心通过网络侧回叫所述用户终端的步骤。
在本实施例中, 所提出的紧急业务可以为紧急呼叫业务或紧急消息业务。 通过本发明的方法, 用户终端可以根据紧急业务属性, 确定在紧急业务情 况下, 是否需要发起紧急承载资源预留, 是否发起 P-CSCF重选, 是否发起 IMS 紧急注册, 在满足紧急业务中紧急承载资源预留, P-CSCF重选, IMS紧急注册 要求的同时节约信令消耗, 又提高紧急呼叫的效率。
同时本发明实施例又提供一种实现紧急业务的系统, 如图 3 所示, 至少包 括用户终端、 网络侧以及紧急中心, 其中:
所述用户终端, 根据其获取的紧急业务属性与所述网络侧进行信息交互, 将用户发出的紧急业务请求接入所述网络侧; 所述网络侧, 用于根据用户终端 传递的信息, 与所述用户终端进行交互, 将所述紧急业务发送给所述紧急中心; 所述紧急中心, 用于接收所述网络侧传送的紧急业务, 与所述用户终端通信。
参考图 4, 所述用户终端至少包括用户业务请求接收单元、 紧急业务属性获 取单元、 信息交互单元以及第一业务请求确认单元, 其中:
所述用户业务请求接收单元, 用于接收用户发起的业务请求;
所述第一业务请求确认单元, 用于确认所述用户业务请求接收单元接收的 业务请求是否为紧急业务, 并将确认信息传送给所述信息交互单元; 所述紧急业务属性获取单元, 用于从网络侧设备或用户终端默认设置获取 紧急业务属性;
所述信息交互单元, 用于根据所述业务请求确认单元的确认结果以及所述 紧急业务属性获取单元获取的信息与所述网络侧进行交互。
网络侧在提供紧急业务属性信息时, 网络侧可能会釆用间接的方式提供, 因此所述用户终端还包括: 紧急业务信息接收单元, 用于接收所述网络侧下发 的信息, 并根据接收的信息确定所述紧急业务属性, 并传送给所述信息交互单 元, 在发生紧急业务时调用。
仍参考图 3所示, 所述网络侧至少包括 IP接入网、 网络控制单元以及紧急 业务属性提供单元:
所述 IP接入网, 用于为所述用户终端提供 IP承载通道; 该 IP接入网的终 端接入包括实现用户终端的附着, IP地址分配, 以及承载资源控制功能; 本发 明中, IP-CAN可以是 GRPS, WLAN, DSL, LAN, PacketCable等网络; 所述网络控制单元, 用于完成所述用户终端在网络侧的注册以及会话; 所述紧急业务属性提供单元,用于根据所述 IP接入网或 /和所述网络控制单 元的控制向所述用户终端提供所述紧急业务属性。 在本实施例中, 该紧急业务 属性提供单元可设置在 IP接入网, 或接入网关控制单元, 或代理呼叫会话控制 单元, 或服务呼叫会话控制单元, 或紧急呼叫会话控制单元, 实现网络侧提供 紧急业务属性给用户终端的目的。
所述网络控制单元包括: 接入控制单元, 用于向所述 IP接入网提供其接入 地址, 在所述用户终端请求下完成所述用户终端的接入, 并将接收的信息传递 给会话控制单元; 在本实施例中, 该接入控制单元可如现有 IMS和 PES规范中 的 P-CSCF和 AGCF, 用户接入控制单元和用户终端的接口可为 E2接口, 当用 户终端通过 SIP协议接入时, 其接口协议为 SIP, 当用户终端为传统电路终端通 过接入网关接入到接入控制单元时, 接入网关和接入控制单元的接口协议可以 是 SIP, H248或者其它媒体控制协议;
会话控制单元, 用于接收所述接入控制单元转发的信息, 使用户完成网络 侧的注册以及会话。 在本实施例中, 所述会话控制单元可如现有 IMS规范中的 S-CSCF, E-CSCF, I-CSCF, P-CSCF; 它和接入控制单元之间可如 E3接口, 该 接口可以是釆用 SIP协议的内部接口或外部接口。
在本系统中, 为了避免用户终端对紧急业务请求的误判或漏判, 所述网络 侧还包括:
第二业务请求确认单元, 用于确认所述用户终端所接入网络侧的业务请求 是否为紧急业务, 并将确认该业务为紧急业务的信息提供给所述紧急业务属性 提供单元。
在本系统中, 所述用户终端为分组终端或传统电路终端。 所述紧急中心 ( PSAP/ECC )设置在分组网络或传统电路网络中, 直接或者通过网关间接连接 到所述网络控制单元。 如间接连接时, 可以通过其它的节点连接, 如媒体网关 控制单元等。
当用户终端为传统电路终端时, 所述网络侧还包括: 用于将所述传统电路 终端通过该接入网络接入 IP接入网的接入网关。
在 IMS网络中, 所述网络控制单元可以是接入网关控制单元 (AGCF), 代理 呼叫会话控制单元 (P-CSCF), 服务呼叫会话控制单元 (S-CSCF), 紧急呼叫会话 控制单元 (E-CSCF);
所述紧急业务属性提供单元可以位于 IP接入网,也可以位于 IMS网络中的 接入网关控制功能 (AGCF), 代理呼叫会话控制单元 (P-CSCF), 服务呼叫会话控 制单元 (S-CSCF), 紧急呼叫会话控制单元 (E-CSCF)。
以用户终端为分组终端为例对实现紧急业务的流程进行说明:
分组终端的用户业务请求接收单元在接收到用户发起的业务请求后, 根据 网络规划由第一业务请求确认单元确认该业务请求是否为紧急业务请求, 如果 第一业务请求确认单元确认该业务请求为紧急业务请求时, 信息交互单元根据 紧急业务属性获取单元获得的紧急业务属性与网络侧进行信息交互, 其中包括 进行是否预留承载资源、 是否 P - CSCF重选、 是否 IMS注册, 网络侧的网络控 制单元将该紧急业务路由至紧急中心, 实现用户的紧急业务。 另外, 在本实施例中, 根据网络规划对业务请求是否为紧急业务请求的确 认可以由网络侧的第二业务请求确认单元确认。
在本实施例中, 网络侧提供紧急业务属性给用户终端时, 可以通过用户终 端的信息交互单元与网络侧的 IP接入网、 网络控制单元交互, 由网络侧的紧急 业务属性提供单元将该信息提供给所述用户。 有关网络侧如何将紧急业务属性 提供给用户终端的描述可以参考有关方法的相关说明。
通过本发明的系统, 用户终端可以减少与网络侧的交互, 节约信令消耗, 又提高的紧急业务的效率。 明的精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权利要求及 其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种实现紧急业务的方法, 其特征在于, 该方法包括以下步骤: 用户终端获得紧急业务属性信息;
所述用户终端按照获得的紧急业务属性与网络侧进行交互;
用户终端通过 IP多媒体子系统 IMS网络向紧急中心发起紧急业务。
2、 根据权利要求 1所述的方法, 其特征在于, 所述紧急业务属性包括以下 至少一种:
所述用户终端发起紧急业务前是否需要发起紧急承载资源预留的紧急承载 资源预留属性;
所述用户终端发起紧急业务前是否需要执行代理呼叫会话控制单元 P - CSCF发现重选的 P - CSCF重选属性;
所述用户终端发起紧急业务前是否需要执行 IMS紧急注册的 IMS紧急注册 属性; 和
所述用户终端发起紧急业务时是否需要携带其所在位置的位置信息属性。
3、 根据权利要求 2所述的方法, 其特征在于, 所述用户端与网络侧的交互 包括以下步骤:
若所述紧急承载资源预留属性是要求所述用户端发起紧急业务前需要进行 紧急承载预留,则所述用户终端根据该属性向 IP接入网发送承载资源预留指示, 所述 IP接入网为该紧急呼叫做出承载资源预留;
若所述 P - CSCF重选属性是要求所述用户终端发起紧急业务前需要进行 P - CSCF重选, 则所述用户终端根据该属性发起 P - CSCF重选的发现过程, 在 本地网络找到 P - CSCF;
若所述 IMS 紧急注册属性是要求所述用户终端发起紧急业务前需要进行 IMS 紧急注册, 则所述用户终端根据该属性利用所述用户终端的 IP 地址和 P-CSCF进行 IMS紧急注册。
4、 根据权利要求 2所述的方法, 其特征在于, 所述用户终端通过 IMS网络 发起紧急业务时, 如网络侧提供的所述位置信息属性是要求所述用户终端进行 紧急业务时需要发送位置信息, 在发起的所述紧急业务消息中携带所述用户终 端的位置信息。
5、 根据权利要求 1所述的方法, 其特征在于, 用户终端获得的紧急业务属 性可以由网络侧提供, 或由用户终端的存储部分的默认设置获得, 或按照网络 默认设置获得。
6、 根据权利要求 5所述的方法, 其特征在于, 由网络侧向所述用户终端提 供所述紧急业务属性的方式为:
在所述用户终端发起接入网附着请求时, 由网络侧将该紧急业务属性携带 在请求响应消息中提供给所述用户终端; 或
在用户终端发起 P - CSCF发现请求时, 由网络侧将该紧急业务属性携带在 请求响应消息中提供给所述用户终端; 或
在用户终端发起 IMS紧急注册时, 由网络侧该紧急业务属性携带在注册响 应消息中提供给所述用户终端; 或
在用户终端发起会话时, 由网络侧将该紧急业务属性携带在会话响应消息 中提供给所述用户终端。
7、 根据权利要求 6所述的方法, 其特征在于, 所述用户终端在发起接入网 附着请求或发起 P - CSCF发现请求或发起 IMS紧急注册或发起会话时,同时向 网络侧发出获取所述紧急业务属性的请求。
8、 根据权利要求 6所述的方法, 其特征在于, 网络侧在会话过程中提供所 述紧急业务属性包括以下步骤:
所述用户终端检测到用户发出的会话请求为紧急业务请求, 并将该紧急业 务请求发送到网络侧; 或者, 所述用户终端将用户发出的会话请求发送至网络 侧, 网络侧检测到该会话请求为紧急业务请求;
网络侧发送携带有紧急业务属性的响应消息至所述用户终端。
9、 根据权利要求 8所述的方法, 其特征在于, 所述响应消息是指示所述紧 急业务请求不符合紧急业务要求的响应, 或者是指示所述会话请求为紧急业务 请求的响应。
10、 根据权利要求 6所述的方法, 其特征在于,
在所述用户终端发起接入网附着请求或发起 P-CSCF发现请求时,所述紧急 业务属性是由网络侧的 IP接入网将其携带在响应消息中提供给所述用户终端; 在所述用户终端发起 IMS紧急注册或发起会话时, 所述紧急业务属性是由 网络侧的接入控制单元或会话控制单元将其携带在响应消息中提供给所述用户 终端。
11、 根据权利要求 5 所述的方法, 其特征在于, 网络侧将所述紧急业务属 性提供给所述用户终端的方式为直接提供; 或
网络侧将网络相关属性或 /和终端相关属性提供给所述用户终端, 再由所述 用户终端判断确定的间接提供方式。
12、 根据权利要求 11所述的方法, 其特征在于,
所述网络相关属性包括以下至少一种: 接入网络信息, 接入控制单元信息, 会话控制单元信息;
所述终端相关属性包括以下至少一种: 终端类型, 终端能力, 终端漫游状 态。
13、 根据权利要求 12所述的方法, 其特征在于,
所述接入网络信息包括以下至少一种: 接入网络类型, 接入网络能力, 接 入网络状态;
所述接入控制单元信息包括以下至少一种: 接入控制单元能力, 接入控制 单元状态;
所述会话控制单元信息包括以下至少一种: 会话控制单元能力, 会话控制 单元状态。
14、 根据权利要求 5 所述的方法, 其特征在于, 由用户终端的存储部分的 默认设置获得所述紧急业务属性的方式为:
用户终端从终端设备获得紧急业务属性, 或
用户终端从用户标识模块获得紧急业务属性。
15、 根据权利要求 1 所述的方法, 其特征在于, 所述用户终端与所述网络 侧进行交互时, 若所述用户终端是分组终端, 所述网络侧是分组网络, 则所述 用户终端直接接入分组网络进行交互; 若所述用户终端是传统电路终端, 所述 网络侧是分组网络, 则所述用户终端通过接入网关接入分组网络进行交互。
16、 根据上述任意权利要求所述的方法, 其特征在于, 所述紧急业务为紧 急呼叫业务或紧急消息业务。
17、 一种实现紧急业务的系统, 其特征在于, 至少包括用户终端、 网络侧 以及紧急中心, 其中:
所述用户终端, 根据其获取的紧急业务属性与所述网络侧进行信息交互, 将用户发出的紧急业务请求接入所述网络侧;
所述网络侧, 用于根据用户终端传递的信息, 与所述用户终端进行交互, 将所述紧急业务发送给所述紧急中心;
所述紧急中心, 用于接收所述网络侧传送的紧急业务, 与所述用户终端通 信。
18、 根据权利要求 17所述的系统, 其特征在于, 所述用户终端至少包括用 户业务请求接收单元、 紧急业务属性获取单元、 信息交互单元以及第一业务请 求确认单元, 其中:
所述用户业务请求接收单元, 用于接收用户发起的业务请求;
所述第一业务请求确认单元, 用于确认所述用户业务请求接收单元接收的 业务请求是否为紧急业务, 并将确认信息传送给所述信息交互单元;
所述紧急业务属性获取单元, 用于从网络侧设备或用户终端默认设置获取 紧急业务属性;
所述信息交互单元, 用于根据所述业务请求确认单元的确认结果以及所述 紧急业务属性获取单元获取的信息与所述网络侧进行交互。
19、 根据权利要求 18所述的系统, 其特征在于, 所述用户终端还包括: 紧急业务信息接收单元, 用于接收所述网络侧下发的信息, 并根据接收的 信息确定所述紧急业务属性, 并传送给所述信息交互单元。
20、 根据权利要求 17 所述的系统, 其特征在于, 所述网络侧至少包括 IP 接入网、 网络控制单元以及紧急业务属性提供单元:
所述 IP接入网, 用于为所述用户终端提供 IP承载通道;
所述网络控制单元, 用于完成所述用户终端在网络侧的注册以及会话; 所述紧急业务属性提供单元,用于根据所述 IP接入网或 /和所述网络控制单 元的控制向所述用户终端提供所述紧急业务属性。
21、 根据权利要求 20所述的系统, 其特征在于, 所述紧急业务属性提供单 元位于 IP接入网, 或接入网关控制单元, 或代理呼叫会话控制单元, 或服务呼 叫会话控制单元, 或紧急呼叫会话控制单元。
22、 根据权利要求 20所述的系统, 其特征在于, 所述网络侧还包括: 第二业务请求确认单元, 用于确认所述用户终端所接入网络侧的业务请求 是否为紧急业务, 并将确认该业务为紧急业务的信息提供给所述紧急业务属性 提供单元。
23、 根据权利要求 17至 22中的任一权利要求所述的系统, 其特征在于, 所述用户终端为分组终端或传统电路终端。
24、 根据权利要求 23所述的系统, 其特征在于, 所述网络侧还包括: 接入网关, 用于将所述传统电路终端通过该接入网络接入 IP接入网。
25、 根据权利要求 17所述的系统, 其特征在于, 所述紧急中心设置在分组 网络或传统电路网络中, 直接或者通过网关间接连接到所述网络控制单元。
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Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102572759B (zh) * 2008-05-14 2016-07-27 中兴通讯股份有限公司 一种实现网络发起紧急业务的方法及系统
CN101883346B (zh) * 2009-05-04 2015-05-20 中兴通讯股份有限公司 基于紧急呼叫的安全协商方法与装置
CN102316077B (zh) * 2010-06-29 2016-02-10 中兴通讯股份有限公司 公共安全应答点的选择方法、装置及系统
CN103037320A (zh) * 2011-09-30 2013-04-10 中兴通讯股份有限公司 非语音的紧急业务能力的通知方法及系统
CN103139743A (zh) * 2011-11-30 2013-06-05 中兴通讯股份有限公司 非语音的紧急业务媒体选择方法、系统及网络侧、终端
CN106464653A (zh) * 2015-05-18 2017-02-22 华为技术有限公司 一种紧急呼叫方法、装置及设备
WO2017113077A1 (zh) * 2015-12-28 2017-07-06 华为技术有限公司 一种上行紧急业务传输方法、基站、用户设备及系统
CN107231621B (zh) * 2016-03-24 2020-09-08 中国移动通信集团公司 一种信息处理方法及移动管理实体、终端
CN110933590A (zh) * 2018-08-30 2020-03-27 中国电信股份有限公司 信息上报方法、装置、终端及计算机可读存储介质
CN113079187B (zh) * 2020-01-03 2023-06-30 成都鼎桥通信技术有限公司 一种B-TrunC协议中支持紧急视频业务的方法和系统
CN113163371A (zh) * 2021-03-18 2021-07-23 维沃移动通信有限公司 呼叫方法、装置及电子设备
WO2024082880A1 (zh) * 2022-10-21 2024-04-25 华为技术有限公司 一种通信方法及装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1301469A (zh) * 1998-05-18 2001-06-27 艾利森公司 多模式移动终端以及操作多模式移动终端的方法
CN1311963A (zh) * 1998-07-30 2001-09-05 艾利森公司 紧急呼叫和短消息传送系统的特性
US20020086659A1 (en) * 1999-08-30 2002-07-04 Eric Lauper Emergency call system within a telecommunication network
CN1390013A (zh) * 2001-05-31 2003-01-08 阿尔卡塔尔公司 在多媒体网络中的紧急通知和最优先服务
CN1505908A (zh) * 2001-04-27 2004-06-16 ��˹��ŵ�� 处理网络识别紧急会话的方法和系统
US20050090224A1 (en) * 2003-10-24 2005-04-28 Dorsey Donald A. Emergency call placement method
US20060120517A1 (en) * 2004-03-05 2006-06-08 Avaya Technology Corp. Advanced port-based E911 strategy for IP telephony
US20060140351A1 (en) * 2004-12-23 2006-06-29 Marian Croak Method and apparatus for providing emergency calls to a disabled endpoint device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1301469A (zh) * 1998-05-18 2001-06-27 艾利森公司 多模式移动终端以及操作多模式移动终端的方法
CN1311963A (zh) * 1998-07-30 2001-09-05 艾利森公司 紧急呼叫和短消息传送系统的特性
US20020086659A1 (en) * 1999-08-30 2002-07-04 Eric Lauper Emergency call system within a telecommunication network
CN1505908A (zh) * 2001-04-27 2004-06-16 ��˹��ŵ�� 处理网络识别紧急会话的方法和系统
CN1390013A (zh) * 2001-05-31 2003-01-08 阿尔卡塔尔公司 在多媒体网络中的紧急通知和最优先服务
US20050090224A1 (en) * 2003-10-24 2005-04-28 Dorsey Donald A. Emergency call placement method
US20060120517A1 (en) * 2004-03-05 2006-06-08 Avaya Technology Corp. Advanced port-based E911 strategy for IP telephony
US20060140351A1 (en) * 2004-12-23 2006-06-29 Marian Croak Method and apparatus for providing emergency calls to a disabled endpoint device

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