WO2010091588A1 - 区分共享同一公共用户标识的多个用户设备的方法及装置 - Google Patents

区分共享同一公共用户标识的多个用户设备的方法及装置 Download PDF

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Publication number
WO2010091588A1
WO2010091588A1 PCT/CN2009/075892 CN2009075892W WO2010091588A1 WO 2010091588 A1 WO2010091588 A1 WO 2010091588A1 CN 2009075892 W CN2009075892 W CN 2009075892W WO 2010091588 A1 WO2010091588 A1 WO 2010091588A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
identifier
request message
called
calling
Prior art date
Application number
PCT/CN2009/075892
Other languages
English (en)
French (fr)
Inventor
汪治
张清波
Original Assignee
阿尔卡特朗讯
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 阿尔卡特朗讯 filed Critical 阿尔卡特朗讯
Priority to EP09839911.6A priority Critical patent/EP2398193A4/en
Priority to JP2011548517A priority patent/JP5718827B2/ja
Priority to US12/998,644 priority patent/US8966091B2/en
Publication of WO2010091588A1 publication Critical patent/WO2010091588A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40Network security protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10Architectures or entities
    • H04L65/1016IP multimedia subsystem [IMS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066Session management
    • H04L65/1073Registration or de-registration
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066Session management
    • H04L65/1101Session protocols
    • H04L65/1104Session initiation protocol [SIP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08User group management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08Upper layer protocols
    • H04W80/10Upper layer protocols adapted for application session management, e.g. SIP [Session Initiation Protocol]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00Indexing scheme associated with group H04L61/00
    • H04L2101/30Types of network names
    • H04L2101/395Internet protocol multimedia private identity [IMPI]; Internet protocol multimedia public identity [IMPU]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00Indexing scheme associated with group H04L61/00
    • H04L2101/60Types of network addresses
    • H04L2101/604Address structures or formats

Definitions

  • the present invention relates to an IMS network, and more particularly to a calling service call session control function entity (caller S-CSCF) and a called service call session control function entity (called S-CSCF) in an IMS network.
  • caller S-CSCF calling service call session control function entity
  • S-CSCF called service call session control function entity
  • the IP Multimedia Subsystem is a subsystem of the 3rd Generation Partnership Project (3GPP) that supports IP multimedia services. Its distinctive features are: Adopting the Session Initiation Protocol (Session Initiation Protocol, SIP), communication and access mode independent, can provide a variety of media services, separation of control functions and bearer capabilities, separation of calls and sessions, separation of applications and services, separation of services and networks, convergence of mobile networks and Internet services . IMS complies with the trend of convergence of communication networks.
  • the concept of shared public user identity is introduced in IMS R6, so that multiple users can share a public user identity (PUID), where the public user identity shared by multiple users is called To share a common user ID.
  • PID public user identity
  • the use of a shared public user identity is highly advantageous for cooperative work modes, such as service hotlines, alarm calls 110, and the like. At the same time, it can also be used in multiple user devices of the same user, such as home phones, office phones, and mobile phones.
  • the use of the shared public user identity also poses a problem: If the calling party uses the shared public user identity, when the caller is called, the called party does not know who is the real caller because This shared public user identity is being used by multiple users. For example, consider the following scenario: If user A hears a call from user B to talk about something, where user B uses a shared public user identity, when the call ends, if the user wants to play back user B's phone and Further discussion, but due to user B The shared public user ID is used, so the user cannot call User B.
  • the contact address can be used to identify multiple users sharing a common user ID, the contact address is not permanently bound to a user and will change every time it is registered.
  • GRUU SIP Globally Routable User Agent URIs
  • the GRUU is bound to the user device, not to the user, once a user re-registers with another user device, other users cannot find the user based on the GRUU saved by the user.
  • GRUU also depends on how much user equipment supports SIP. In the IMS network, since the legacy UE does not support SIP, the GRUU mechanism cannot be used. Summary of the invention
  • the present invention provides a method for distinguishing a plurality of calling user equipments sharing a common user identifier in a calling service call session control function entity of an IP multimedia subsystem network. And the corresponding one of the plurality of called user devices for forwarding the autonomous user identity device in the called service call session control function entity of the IP multimedia subsystem network is forwarded to one of the plurality of called user devices sharing a common user identity A method and apparatus for calling a user device.
  • a method for distinguishing a plurality of calling user devices sharing a common user identity in a calling service call session control function entity of an IP Multimedia Subsystem network includes the following Steps: a. receiving a session request message from the calling user equipment for requesting to establish a session; c. placing an extension identifier corresponding to the calling user equipment into the session request message, where the extended identifier is used Differentiating the plurality of calling user devices; d. the session request to be updated by step c The message is sent to the called user equipment.
  • the step c further includes the following steps: bl. extracting a public user identifier of the calling user equipment from the session request message; b2. determining whether the public user identifier is And the step of the step of further comprising: adding the extended identifier corresponding to the calling user equipment to the session request message if the public user identifier is a shared public user identifier.
  • the method further includes the following steps: determining whether the extended identifier function of the calling user equipment is in an active state; wherein the step c further comprises: if the extended identifier The function is in an active state, and the extended identifier corresponding to the calling user equipment is placed in the session request message.
  • a method for forwarding a session request message for autonomously calling a user device to a plurality of shared public user identifiers in a called service call session control function entity of an IP Multimedia Subsystem network a method for calling a called user equipment in a user equipment, comprising: the following steps: i. receiving a session request message from the calling user equipment for requesting to establish a session; ii. determining, according to the session request message, Whether the called user equipment uses the shared public user identifier; iii.
  • the session request message includes an extended identifier corresponding to the called user equipment, where The extension identifier is used to distinguish the multiple called user equipments; iv. If the extension identifier is included in the session request message, according to the extension identifier and the shared public user identifier of the called user equipment, Sending the session request message to the called user equipment.
  • the method further includes the following steps: v. if the extension identifier is not included in the session request message, sending an inquiry message to the calling user equipment, where the inquiry message is used to the main Calling the user equipment to query whether there is an extension identifier provided corresponding to the called user equipment; vi. sharing the extension identifier corresponding to the called user equipment and the sharing of the called user equipment according to the calling user equipment The public user identifier is sent to the called user equipment.
  • the step iv further includes the following steps: if the session request message includes an extended identifier, determining that the called user equipment is expanded.
  • the step iv further includes: if the extended identification function is in an active state, according to the extended identifier and the shared public user identifier of the called user equipment, the session is A request message is sent to the called user equipment.
  • a first control apparatus for distinguishing a plurality of calling user equipments sharing a common subscriber identity in a calling service call session control function entity of an IP Multimedia Subsystem network, wherein And including: a first receiving device, configured to receive a session request message from the calling user equipment for requesting to establish a session; and adding means, configured to put the extended identifier corresponding to the calling user equipment into the session request message The extension identifier is used to distinguish the multiple calling user equipments; the first sending device is configured to send a session request message updated by the adding device to the called user equipment.
  • the first control device further includes: a first extracting device, configured to extract a public user identifier of the calling user equipment from the session request message, where the first determining device is configured to determine whether the public user identifier is And the adding device is further configured to: put the extended identifier corresponding to the calling user equipment into the session request message if the public user identifier is a shared public user identifier.
  • a first extracting device configured to extract a public user identifier of the calling user equipment from the session request message, where the first determining device is configured to determine whether the public user identifier is
  • the adding device is further configured to: put the extended identifier corresponding to the calling user equipment into the session request message if the public user identifier is a shared public user identifier.
  • the first control device further includes: a second determining device, configured to determine whether the extended identification function of the calling user equipment is in an active state; wherein the adding device is further configured to: if the extended identification function is activated a state, the extension identifier corresponding to the calling user equipment is placed in the session request message.
  • a second determining device configured to determine whether the extended identification function of the calling user equipment is in an active state
  • the adding device is further configured to: if the extended identification function is activated a state, the extension identifier corresponding to the calling user equipment is placed in the session request message.
  • a method for forwarding a session request message for autonomously calling a user equipment to a plurality of shared public user identifiers in a called service call session control function entity of an IP Multimedia Subsystem network a second control device of the called user equipment in the user equipment wherein: the second receiving device is configured to receive a session request message from the calling user equipment for requesting to establish a session; For determining, according to the session request message, whether the called user equipment uses a shared public user identifier, and fourth determining means, configured to determine, in the session request message, if the called user equipment uses a shared public user identifier Whether it contains the corresponding An extended identifier of the called user equipment, where the extended identifier is used to distinguish the multiple called user equipments; and the second sending device is configured to: if the extended request identifier is included in the session request message, according to the And extending the identifier and the shared public user identifier of the called user equipment, and sending the session request
  • the second control device further includes: a third sending device, configured to send an inquiry message to the calling user equipment if the extension request identifier is not included in the session request message, where the inquiry message is used for The calling user equipment asks whether there is an extended identifier provided corresponding to the called user equipment; the fourth sending device is configured to send, according to the calling user equipment, an extended identifier corresponding to the called user equipment, and And a shared public user identifier of the called user equipment, where the session request message is sent to the called user equipment.
  • a third sending device configured to send an inquiry message to the calling user equipment if the extension request identifier is not included in the session request message, where the inquiry message is used for The calling user equipment asks whether there is an extended identifier provided corresponding to the called user equipment
  • the fourth sending device is configured to send, according to the calling user equipment, an extended identifier corresponding to the called user equipment, and And a shared public user identifier of the called user equipment, where the session request message is sent to the called user equipment.
  • the second control device further includes: a fifth determining means, configured to determine, if the session request message includes an extended identifier, whether the extended identification function of the called user equipment is in an active state; wherein, the second The sending device is further configured to send the session request message to the called user equipment according to the extended identifier and the shared public user identifier of the called user equipment, if the extended identifier function is in an activated state.
  • a fifth determining means configured to determine, if the session request message includes an extended identifier, whether the extended identification function of the called user equipment is in an active state
  • the second The sending device is further configured to send the session request message to the called user equipment according to the extended identifier and the shared public user identifier of the called user equipment, if the extended identifier function is in an activated state.
  • the calling S-CSCF in the calling party network passes. Adding the obtained extension ID corresponding to the calling user equipment to the session request message from the calling user equipment, and sending the session request message with the extended identifier to the called user in the called party network.
  • the device so that the called user equipment can know who is the real calling user equipment according to the extended identifier in the session request message and the shared public user identifier used by the calling user equipment. Therefore, after the end of the session, the called user equipment can re-establish a session connection with the calling user equipment according to the extended identity of the calling user equipment and the shared public user identity used.
  • FIG. 1 shows a caller in an IMS network in accordance with an embodiment of the present invention.
  • FIG. 2 illustrates a plurality of called user devices for forwarding a session request message of autonomously called user equipment to a shared public user identity in a called S-CSCF of an IMS network according to another embodiment of the present invention.
  • FIG. 3 is a block diagram showing the structure of a first control device for distinguishing a plurality of calling user devices sharing a common user identity in a calling S-CSCF of an IMS network according to an embodiment of the present invention
  • FIG. 4 illustrates a called on an IMS network in accordance with another embodiment of the present invention.
  • a new attribute is defined by a service provider or a telecommunication operator in a public identification class: an extension ID.
  • the extended identifier can be an address of any data type.
  • the extended identifier includes at least any one of non-negative integer values, for example, the extended identifier is composed of any one or more of integer values from 0 to 9. As long as the extended identifier corresponding to each of the plurality of users sharing the same public user identifier is unique.
  • the registration request message is sent to the S-CSCF to request registration authentication.
  • the S-CSCF After receiving the registration request message, the S-CSCF passes the attribution according to the private user identifier corresponding to the user in the registration request message.
  • the User Data Center (Aus) of the User Server (HSS) authenticates the user.
  • the S-CSCF also downloads the user profile of the user from the HSS, and through the user profile, the S-CSCF can obtain the extended identifier corresponding to the user.
  • the user's shared public user ID and extension identifier are bound together with an IP address.
  • the session request message sent to the shared user identity and the extended identity will be forwarded to the user corresponding to the IP address. Since the extended identifiers corresponding to the multiple users sharing the same public user identifier are different, the shared public user identifier and the extended identifier together can uniquely determine the multiple users for the same public user identifier. One of the users, thereby achieving the purpose of distinguishing multiple users sharing the same public user identity.
  • FIG. 1 shows a flow diagram of a method for distinguishing a plurality of calling user devices sharing a common user identity in a calling S-CSCF of an IMS network in accordance with an embodiment of the present invention.
  • the user equipments in the calling party network S-CSCF, P-CSCF and I-CSCF are respectively referred to as calling user equipment, calling S-CSCF, main Called P-CSCF and calling I-CSCF, the user equipment in the called party network is called the called user equipment.
  • step S11 the calling S-CSCF receives a session request message (INVITE) from the calling user equipment for requesting to establish a session.
  • INVITE session request message
  • the session request message received by the calling S-CSCF from the calling user equipment for requesting to establish a session is via the calling P-CSCF (proxy call session control function entity) and the calling I-CSCF (query call session)
  • the control function entity is forwarded to the calling S-CSCF (Serving Call Session Control Function Entity).
  • the session request message includes a public user identifier of the calling user equipment and a public user identifier of the called user equipment with which the calling user equipment wants to establish a session connection.
  • other information is included in the session request message, which is already in the prior art. For the sake of brevity, no further details are provided herein.
  • step S12 the calling S-CSCF puts the acquired extended identifier corresponding to the calling user equipment into the session request message.
  • the extended identifier is used to distinguish multiple calling user equipments that use the same shared public user identity.
  • the calling S-CSCF puts the extended identifier corresponding to the user equipment in the session request message
  • the calling S-CSCF downloads the user profile corresponding to the user from the HSS. After getting it from it.
  • the calling S-CSCF After receiving the session request message from the calling user equipment, the calling S-CSCF first determines, according to the session request message, whether the calling user equipment uses the shared public user identity.
  • the calling S-CSCF first extracts the public user identifier of the calling user equipment from the received session request message, and then determines whether the public user identifier is a shared public user identifier. Since all the shared public user identifiers are registered in the IMS network, the calling S-CSCF can determine whether it is a shared public according to the public user identifier corresponding to the calling user equipment in the session request message. User ID.
  • the calling S-CSCF puts the acquired extended identity corresponding to the calling user equipment into the session request message.
  • the calling S-CSCF determines that the calling user equipment uses the shared public user identifier, it further determines whether the extended identification function of the calling user equipment is in an active state.
  • the calling S-CSCF puts the acquired extended identifier corresponding to the calling user equipment into the session request message.
  • the calling S-CSCF does not put the extended identity corresponding to the calling user equipment into the session request message.
  • the extended identity corresponding to the calling user equipment can be added to the shared public user identity in the session request message as part of the shared public user identity of the calling user device.
  • the called user equipment can receive the shared public user identifier including the extended identifier corresponding to the calling user equipment without any improvement, so that when the called user equipment needs to initiate a session request to the calling user equipment, A session connection can be established with the calling user equipment by the shared public user identity including the extended identity.
  • extension identifier corresponding to the calling user equipment can also be added to the session request message as a separate parameter independent of the shared public user identity. Based on this, an improvement is required to the called user equipment to enable it to receive the extended user identity.
  • step S13 the calling S-CSCF sends a session request message to which the extended identity is added to the called user equipment.
  • the called user equipment responds to the session request with 200 OK.
  • the calling user equipment After receiving the 200 OK response from the called user equipment, the calling user equipment sends an ACK to the called user equipment for confirming to the called user equipment that it has received the final response message to the session request message. It should be understood by those skilled in the art that this is already in the prior art and will not be described herein.
  • a session connection is established between the calling user equipment and the called user equipment.
  • the calling S-CSCF adds the extension identifier corresponding to the calling user equipment to the received session request message from the calling user equipment, the called user equipment receives the session request. After the message, it can be known by the extended identifier that the calling user equipment is which of the plurality of user equipments sharing the same public user identifier. Therefore, after the session ends, if the called user equipment wants to establish a session connection with the original calling user equipment again, the session connection can be established through the shared public user identity and the extended identifier of the original calling user equipment. .
  • FIG. 1 is a description of a specific embodiment of the present invention from the perspective of a calling user equipment using a shared public user identity, and another embodiment of the present invention will be described below with reference to FIG. 2 from the perspective of the called user equipment using a shared public user identity. The example is described.
  • FIG. 2 illustrates a plurality of called user devices for forwarding a session request message of autonomously called user equipment to a shared public user identity in a called S-CSCF of an IMS network according to another embodiment of the present invention.
  • the user equipment, S-CSCF, P-CSCF and I-CSCF in the calling party network are respectively referred to as calling user equipment, calling S-CSCF, main Called P-CSCF and calling I-CSCF, the user equipment and S-CSCF in the called party network are called called user equipment and called S-CSCF.
  • the calling user equipment first sends a session request message for requesting a session connection with the called user equipment.
  • the session request message is forwarded to the called S-CSCF in the called party network by the calling P-CSCF, the calling I-CSCF, and the calling S-CSCF in the calling party network.
  • step S21 the called S-CSCF receives a session request message from the calling user equipment and requesting to establish a session via the calling P-CSCF, the calling I-CSCF and the calling S-CSCF.
  • the session request message includes a public user identifier of the calling user equipment and a public user identifier of the called user equipment.
  • a public user identifier of the calling user equipment includes a public user identifier of the calling user equipment and a public user identifier of the called user equipment.
  • other information is included in the session request message, which is already in the prior art. For the sake of brevity, no further details are provided herein.
  • step S22 the called S-CSCF determines, according to the received session request message, whether the called user equipment to which the session request message is to be sent uses the shared public user identity.
  • the called S-CSCF extracts the public user identifier of the called user equipment from the received session request message, and then determines whether the public user identifier is a shared public user identifier. Since all the shared public user identifiers are registered in the IMS network, the called S-CSCF can determine whether it is a shared public according to the public user identifier corresponding to the called user equipment in the session request message. User ID. If the public user identifier is a shared public user identifier, then in step S23, the called S-CSCF determines whether the session request message includes an extension identifier corresponding to the called user equipment. The extended identifier is used to distinguish multiple called user equipments that use the same shared public user identifier.
  • the called S-CSCF sends the session request message to the extended public identifier according to the extended identifier and the called user equipment.
  • the called user equipment The called user equipment.
  • the called S-CSCF downloads the user profile corresponding to the called user equipment from the HSS, and An extension identifier corresponding to the called user equipment is retrieved from the user profile. The extension identifier is then bound to an IP address along with the shared public user identity of the called user equipment. Therefore, in step S24, the called S-CSCF sends the session request message to the called user equipment corresponding to the IP address to which it is bound according to the extended identifier and the shared public user identifier of the called user equipment.
  • the called S-CSCF may further forward the session request message according to a transmission mechanism existing in the prior art.
  • the called S-CSCF may send an inquiry message to the calling user equipment, where the inquiry message is used for the calling user.
  • the device asks if there is an extension identifier provided corresponding to the called user equipment.
  • the called S-CSCF may be based on the extension identifier and the shared public of the called user equipment.
  • User ID sending a session request message to the called user equipment.
  • the called S-CSCF may further determine whether the extended identification function of the called user equipment is in an active state. If the extended identification function of the called user equipment is activated, the called party
  • the S-CSCF sends a session request message to the called user equipment according to the extended identifier and the shared public user identifier of the called user equipment.
  • the called S-CSCF does not care, but according to the existing The sending rules already in the technology further forward the session request message.
  • the corresponding called user equipment may send a 200 OK response to the session request.
  • the calling user equipment After receiving the 200 OK response, the calling user equipment sends an ACK to the called user equipment for confirming to the called user equipment that it has received the final response message to the session request message. It should be understood by those skilled in the art that this is already in the prior art and will not be described herein.
  • FIGS. 3 and 4 is a block diagram showing the structure of a first control device for distinguishing a plurality of calling user devices sharing a common user identity in a calling S-CSCF of an IMS network according to an embodiment of the present invention.
  • the user equipments in the calling party network S-CSCF, P-CSCF and I-CSCF are respectively referred to as calling user equipment, calling S-CSCF, main Called P-CSCF and calling I-CSCF, the user equipment in the called party network is called the called user equipment.
  • the first receiving device 101 of the first control device 10 in the calling S-CSCF receives a session request message (INVITE) from the calling user equipment for requesting establishment of a session.
  • INVITE session request message
  • the first receiving device 101 receives the request from the calling user equipment for requesting
  • the session request message for establishing the session is forwarded to the calling S-CSCF via the calling P-CSCF (Proxy Call Session Control Function Entity) and the calling I-CSCF (Inquiring Call Session Control Function Entity) (Serving Call Session Control Function Entity) ) of.
  • P-CSCF Proxy Call Session Control Function Entity
  • I-CSCF Inquiring Call Session Control Function Entity
  • Server Call Session Control Function Entity Server Call Session Control Function Entity
  • the session request message includes a public user identifier of the calling user equipment and a public user identifier of the called user equipment with which the calling user equipment wants to establish a session connection.
  • a public user identifier of the calling user equipment and a public user identifier of the called user equipment with which the calling user equipment wants to establish a session connection.
  • other information is included in the session request message, which is already in the prior art. For the sake of clarity, it will not be described here.
  • the adding device 102 in the first control device 10 in the calling S-CSCF puts the acquired extended identifier corresponding to the calling user device into the session request message.
  • the extended identifier is used to distinguish multiple calling user equipments that use the same shared public user identity.
  • extension identifier corresponding to the user equipment in the session request message is added, when the user registers with the user, the calling S-CSCF downloads the user profile corresponding to the user from the HSS. Obtained.
  • the first extracting device in the first control device 10 in the calling S-CSCF determines the public Whether the user ID is a shared public user ID. Since all the shared public user identifiers are registered in the IMS network, the calling S-CSCF can determine whether it is a shared public according to the public user identifier corresponding to the calling user equipment in the session request message. User ID.
  • the adding device 102 places the acquired extended identity corresponding to the calling user device into the session request message.
  • the second determining means in the first control device 10 (not shown in FIG. 3 for simplicity) Whether the extended identification function of the calling user equipment is activated. Adding a device if the extended identification function of the calling user equipment is active
  • the adding device 102 does not place the extended identifier corresponding to the calling user equipment even if the calling user equipment uses the shared public user identifier. In the session request message.
  • the extended identity corresponding to the calling user equipment can be added to the shared public user identity in the session request message as part of the shared public user identity of the calling user device.
  • the called user equipment can receive the shared public user identifier including the extended identifier corresponding to the calling user equipment without any improvement, so that when the called user equipment needs to initiate a session request to the calling user equipment, A session connection can be established with the calling user equipment by the shared public user identity including the extended identity.
  • extension identifier corresponding to the calling user equipment can also be added to the session request message as a separate parameter independent of the shared public user identity. Based on this, an improvement is required to the called user equipment to enable it to receive the extended user identity.
  • the first transmitting device 103 of the first control device 10 in the calling S-CSCF transmits a session request message to which the extended identification is added to the called user equipment.
  • the called user equipment responds to the session request with 200 OK.
  • the calling user equipment After receiving the 200 OK response from the called user equipment, the calling user equipment sends an ACK to the called user equipment for confirming to the called user equipment that it has received the final response message to the session request message. It should be understood by those skilled in the art that this is already in the prior art and will not be described herein.
  • a session connection is established between the calling user equipment and the called user equipment.
  • the calling S-CSCF adds the extension identifier corresponding to the calling user equipment to the received session request message from the calling user equipment, the called user equipment receives the session request.
  • the extended identifier can be used to learn that the calling user equipment is in multiple user equipments sharing the same public user identifier. Which user device. Therefore, after the session ends, if the called user equipment wants to establish a session connection with the original calling user equipment again, the session connection can be established through the shared public user identity and the extended identifier of the original calling user equipment. .
  • FIG. 3 is a description of a specific embodiment of the present invention from the perspective of a calling user equipment using a shared public user identity, and another embodiment of the present invention will be described below with reference to FIG. 4 from the perspective of the called user equipment using the shared public user identity. The example is described.
  • FIG. 4 illustrates a method for forwarding a session request message for autonomously calling a user device to a plurality of called user devices sharing a common user identity in a called S-CSCF of an IMS network according to another embodiment of the present invention.
  • the user equipments in the calling party network S-CSCF, P-CSCF and I-CSCF are respectively referred to as calling user equipment, calling S-CSCF, main Called P-CSCF and calling I-CSCF, the user equipment and S-CSCF in the called party network are called called user equipment and called S-CSCF.
  • the calling user equipment first sends a session request message for requesting a session connection with the called user equipment.
  • the session request message is forwarded to the called S-CSCF in the called party network by the calling P-CSCF, the calling I-CSCF, and the calling S-CSCF in the calling party network.
  • the second receiving device 201 of the second control device 20 in the called S-CSCF receives the route from the calling user equipment and is forwarded via the calling P-CSCF, the calling I-CSCF and the calling S-CSCF.
  • a session request message requesting to establish a session.
  • the session request message includes a public user identifier of the calling user equipment and a public user identifier of the called user equipment.
  • a public user identifier of the calling user equipment includes a public user identifier of the calling user equipment and a public user identifier of the called user equipment.
  • other information is included in the session request message, which is already in the prior art. For the sake of brevity, no further details are provided herein.
  • the third determining device 202 of the second control device 20 in the called S-CSCF determines, according to the received session request message, whether the called user equipment to which the session request message is to be sent uses the shared public user identifier.
  • the second extracting device in the third determining device 202 (for the sake of brevity, Not shown in FIG. 4) extracting the public user identifier of the called user equipment from the received session request message, and then, the sixth determining means in the third determining means 202 (not shown in FIG. 4 for the sake of brevity) Determine whether the public user identity is a shared public user identity. Since all the shared public user identifiers are registered in the IMS network, the called S-CSCF can determine whether it is a shared public according to the public user identifier corresponding to the called user equipment in the session request message. User ID.
  • the fourth determining device 203 of the second control device 20 in the called S-CSCF determines whether the session request message includes an extended identifier corresponding to the called user equipment. .
  • the extended identifier is used to distinguish between multiple called user equipments that use the same shared public user identifier.
  • the fourth sending device 204 in the second control device 20 in the called S-CSCF is configured according to the extended identifier and the shared public user of the called user equipment.
  • the identifier is sent to the called user equipment.
  • the called S-CSCF downloads the user profile corresponding to the called user equipment from the HSS, and An extension identifier corresponding to the called user equipment is obtained in the user profile.
  • the extension identifier is then bound to an IP address along with the shared public user identity of the called user equipment. Therefore, the second sending device 204 sends the session request message to the called user equipment corresponding to the IP address to which it is bound according to the extended identifier and the shared public user identifier of the called user equipment.
  • the second sending device 204 may further forward the session request message according to a transmission mechanism existing in the prior art.
  • the third sending device in the second control device 20 in the called S-CSCF (for simplicity, FIG. 4 Not shown) an inquiry message can be sent to the calling user equipment, wherein the inquiry message is used to ask the calling user equipment whether there is an extension identification provided corresponding to the called user equipment.
  • the calling user equipment has an extension identifier corresponding to the called user equipment and provides the extension identifier to the called S-CSCF, then the fourth transmitting device in the second control device 20 in the called S-CSCF (For simplicity, not shown in FIG. 4)
  • a session request message may be sent to the called user equipment based on the extended identity and the shared public user identity of the called user equipment.
  • the fifth determination device in the second control device 20 in the called S-CSCF (not shown in FIG. 4 for the sake of brevity) The method further determines whether the extended identification function of the called user equipment is in an active state.
  • the second sending device 204 sends a session request message to the called user equipment according to the extended identifier and the shared public user identifier of the called user equipment.
  • the called S-CSCF does not care, but according to the existing The sending rules already in the technology further forward the session request message.
  • the corresponding called user equipment may send a 200 OK response to the session request.
  • the calling user equipment After receiving the 200 OK response, the calling user equipment sends an ACK to the called user equipment for confirming to the called user equipment that it has received the final response message to the session request message. It should be understood by those skilled in the art that this is already in the prior art and will not be described herein.

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Description

区分共享同一公共用户标识的
多个用户设备的方法及装置 技术领域
本发明涉及 IMS 网络, 尤其涉及 IMS 网络中的主叫服务呼叫会 话控制功能实体 (主叫 S-CSCF ) 以及被叫服务呼叫会话控制功能实 体 (被叫 S-CSCF ) 。 背景技术
IP多媒体子系统 ( IP Multimedia Subsystem, IMS )是第 3代移动 通信合作伙伴项目 ( 3rd Generation Partnership Project, 3 GPP )提出的 支持 IP 多媒体业务的子系统, 它的显著特点是: 采用了会话初始协 议 (Session Initiation Protocol, SIP), 通信与接入方式无关, 可以提 供多种媒体业务, 控制功能与承载能力分离、 呼叫与会话分离、 应用 与服务分离、 业务与网络分离, 移动网与 Internet业务融合。 IMS顺 应了通信网络融合发展的趋势。
IMS R6中引入了共享公共用户标识 ( shared public user identity ) 的概念,使得多个用户可以共享一个公共用户标识( public user identity PUID ) , 其中, 该被多个用户共享的公共用户标识即被称为共享公共 用户标识。 共享公共用户标识的使用对于合作工作模式, 例如, 服务 热线, 报警电话 110等, 是非常有利的。 同时, 其还能够被用于同一 个用户的多个用户设备中, 例如, 家庭电话, 办公室电话以及移动电 话等。
但是, 共享公共用户标识的使用也带来了问题: 如果主叫方使用 的是共享公共用户标识, 当其呼叫被叫方后, 被叫方并不知道谁才是 真正的主叫方, 因为该共享公共用户标识正被多个用户使用。 例如, 考虑到以下场景: 如果用户甲接听到来自用户乙的电话谈论一些事 情, 其中, 该用户乙使用的是共享公共用户标识, 当通话结束后, 如 果用户曱想回播用户乙的电话与其进一步进行讨论, 但是由于用户乙 使用的是共享公共用户标识, 因此用户曱无法呼叫用户乙。
另外, 在多个用户共享同一个公共用户标识的情形下, 该多个用 户之间是无法直接进行通话的。
尽管, 联系地址( contact address )可以用于识别共享一个公共用 户标识的多个用户, 但是, 联系地址并不是永久绑定一个用户的, 其 在每一次注册时都会变化。
现有技术中, 为了解决上述问题, 提出了 SIP全球可路由的用户 代理统一资源标识符( Globally Routable User Agent URIs, GRUU )机 制, 但是 GRUU还存在以下问题:
由于 GRUU是与用户设备绑定, 而不是与用户绑定的, 因此, 一 旦一个用户重新注册到另一个用户设备上后, 其他用户根据该用户之 前保存的 GRUU是无法找到该用户的。
另外, GRUU的使用还取决于用户设备对 SIP的支持程度。在 IMS 网络中, 由于那些遗留设备(legacy UE ) 不支持 SIP, 因此, 也无法 使用 GRUU机制。 发明内容
本发明为了解决现有技术中的上述缺陷, 提出了一种在 IP 多媒 体子系统网络的主叫服务呼叫会话控制功能实体中用于区分共享一 个公共用户标识的多个主叫用户设备的方法和装置 , 以及相应的在 IP 多媒体子系统网络的被叫服务呼叫会话控制功能实体中用于将来自 主叫用户设备的会话请求消息转发至共享一个公共用户标识的多个 被叫用户设备中的一个被叫用户设备的方法和装置。
根据本发明的第一方面, 提供了一种在 IP 多媒体子系统网络的 主叫服务呼叫会话控制功能实体中用于区分共享一个公共用户标识 的多个主叫用户设备的方法, 其中, 包括以下步骤: a. 接收来自主叫 用户设备用于请求建立会话的会话请求消息; c. 将对应于所述主叫 用户设备的扩展标识放入所述会话请求消息中, 其中, 所述扩展标识 用于区分所述多个主叫用户设备; d. 将通过步骤 c更新的会话请求 消息发送至被叫用户设备。
优选地, 所述步骤 a之后, 所述步骤 c之前还包括以下步骤: bl . 从所述会话请求消息中提取所述主叫用户设备的公共用户标识; b2. 判断所述公共用户标识是否为共享公共用户标识; 其中, 所述步骤 c 还包括: 如果所述公共用户标识为共享公共用户标识, 将对应于所述 主叫用户设备的扩展标识放入所述会话请求消息中。
优选地, 所述步骤 b2之后, 所述步骤 c之后, 还包括以下步骤: 判断所述主叫用户设备的扩展标识功能是否处于激活状态; 其中, 所 述步骤 c还包括: 如果所述扩展标识功能处于激活状态, 将对应于所 述主叫用户设备的扩展标识放入所述会话请求消息中。
根据本发明的第二方面, 提供了一种在 IP 多媒体子系统网络的 被叫服务呼叫会话控制功能实体中用于将来自主叫用户设备的会话 请求消息转发至共享一个公共用户标识的多个被叫用户设备中的一 个被叫用户设备的方法, 其中, 包括以下步骤: i. 接收来自所述主叫 用户设备用于请求建立会话的会话请求消息; ii. 根据所述会话请求 消息, 判断所述被叫用户设备是否使用共享公共用户标识; iii. 如果 所述被叫用户设备使用共享公共用户标识, 判断所述会话请求消息中 是否包含对应于所述被叫用户设备的扩展标识, 其中, 所述扩展标识 用于区分所述多个被叫用户设备; iv. 如果所述会话请求消息中包含 所述扩展标识, 则根据所述扩展标识以及所述被叫用户设备的共享公 共用户标识, 将所述会话请求消息发送至所述被叫用户设备。
优选地, 所述步骤 iii之后还包括以下步骤: v. 如果所述会话请 求消息中不包含所述扩展标识, 向所述主叫用户设备发送询问消息, 所述询问消息用于向所述主叫用户设备询问是否有对应于所述被叫 用户设备的扩展标识提供; vi. 根据所述主叫用户设备提供的对应于 所述被叫用户设备的扩展标识以及所述被叫用户设备的共享公共用 户标识, 将所述会话请求消息发送至所述被叫用户设备。
优选地, 所述步骤 iii之后, 所述步骤 iv之前还包括以下步骤: 如果所述会话请求消息中包含扩展标识, 判断所述被叫用户设备的扩 展标识功能是否处于激活状态; 其中, 所述步骤 iv还包括: 如果所述 扩展标识功能处于激活状态, 则根据所述扩展标识以及所述被叫用户 设备的共享公共用户标识, 将所述会话请求消息发送至所述被叫用户 设备。
根据本发明的第三方面, 提供了一种在 IP 多媒体子系统网络的 主叫服务呼叫会话控制功能实体中用于区分共享一个公共用户标识 的多个主叫用户设备的第一控制装置, 其中, 包括: 第一接收装置, 用于接收来自主叫用户设备用于请求建立会话的会话请求消息; 添加 装置, 用于将对应于所述主叫用户设备的扩展标识放入所述会话请求 消息中, 其中, 所述扩展标识用于区分所述多个主叫用户设备; 第一 发送装置, 用于将通过添加装置更新的会话请求消息发送至被叫用户 设备。
优选地, 第一控制装置还包括: 第一提取装置, 用于从所述会话 请求消息中提取所述主叫用户设备的公共用户标识; 第一判断装置, 用于判断所述公共用户标识是否为共享公共用户标识; 其中, 所述添 加装置还用于如果所述公共用户标识为共享公共用户标识, 将对应于 所述主叫用户设备的扩展标识放入所述会话请求消息中。
优选地, 第一控制装置还包括: 第二判断装置, 用于判断所述主 叫用户设备的扩展标识功能是否处于激活状态; 其中, 所述添加装置 还用于如果所述扩展标识功能处于激活状态, 将对应于所述主叫用户 设备的扩展标识放入所述会话请求消息中。
根据本发明的第四方面, 提供了一种在 IP 多媒体子系统网络的 被叫服务呼叫会话控制功能实体中用于将来自主叫用户设备的会话 请求消息转发至共享一个公共用户标识的多个被叫用户设备中的一 个被叫用户设备的第二控制装置, 其中, 包括: 第二接收装置, 用于 接收来自所述主叫用户设备用于请求建立会话的会话请求消息; 第三 判断装置, 用于根据所述会话请求消息, 判断所述被叫用户设备是否 使用共享公共用户标识; 第四判断装置, 用于如果所述被叫用户设备 使用共享公共用户标识, 判断所述会话请求消息中是否包含对应于所 述被叫用户设备的扩展标识, 其中, 所述扩展标识用于区分所述多个 被叫用户设备; 第二发送装置, 用于如果所述会话请求消息中包含所 述扩展标识, 则根据所述扩展标识以及所述被叫用户设备的共享公共 用户标识, 将所述会话请求消息发送至所述被叫用户设备。
优选地, 第二控制装置还包括: 第三发送装置, 用于如果所述会 话请求消息中不包含所述扩展标识, 向所述主叫用户设备发送询问消 息, 所述询问消息用于向所述主叫用户设备询问是否有对应于所述被 叫用户设备的扩展标识提供; 第四发送装置, 用于根据所述主叫用户 设备提供的对应于所述被叫用户设备的扩展标识以及所述被叫用户 设备的共享公共用户标识, 将所述会话请求消息发送至所述被叫用户 设备。
优选地, 第二控制装置还包括: 第五判断装置, 用于如果所述会 话请求消息中包含扩展标识, 判断所述被叫用户设备的扩展标识功能 是否处于激活状态; 其中, 所述第二发送装置还用于如果所述扩展标 识功能处于激活状态, 则根据所述扩展标识以及所述被叫用户设备的 共享公共用户标识, 将所述会话请求消息发送至所述被叫用户设备。
通过使用本发明的方法和装置,可以区分 IMS网络中使用同一个 共享公共用户标识的多个用户设备。 具体的, 当主叫方网络中使用共 享公共用户标识的主叫用户设备请求与被叫方网络中的某个被叫用 户设备建立会话连接时, 主叫方网络中的主叫 S-CSCF通过在来自主 叫用户设备的会话请求消息中加入已获取的对应于该主叫用户设备 的扩展标识( extension ID )并将加入了扩展标识的会话请求消息发送 至被叫方网络中的被叫用户设备, 以使得被叫用户设备可以根据该会 话请求消息中的扩展标识以及该主叫用户设备使用的共享公共用户 标识知晓谁是真正的主叫用户设备。 因此, 在此次会话结束后, 被叫 用户设备可以才艮据该主叫用户设备的扩展标识以及所使用的共享公 共用户标识, 与该主叫用户设备重新建立会话连接。
即使是共享同一个公共用户标识的多个用户, 也可以通过在会话 请求消息中加入扩展标识来实现彼此之间直接建立会话。 附图说明
通过阅读以下参照附图对非限制性实施例所作的详细描述, 本发 明的其它特征、 目的和优点将会变得更明显。
图 1示出了根据本发明的一个具体实施方式的在 IMS网络的主叫
S-CSCF 中用于区分共享一个公共用户标识的多个主叫用户设备的方 法流程图;
图 2示出了根据本发明的另一具体实施方式的在 IMS网络的被叫 S-CSCF 中用于将来自主叫用户设备的会话请求消息转发至共享一个 公共用户标识的多个被叫用户设备中的一个被叫用户设备的方法流 程图;
图 3示出了根据本发明的一个具体实施方式的在 IMS网络的主叫 S-CSCF 中用于区分共享一个公共用户标识的多个主叫用户设备的第 一控制装置的结构框图; 以及
图 4示出了根据本发明的另一具体实施方式的在 IMS网络的被叫
S-CSCF 中用于将来自主叫用户设备的会话请求消息转发至共享一个 公共用户标识的多个被叫用户设备中的一个被叫用户设备的第二控 制装置的结构框图。
附图中相同或相似的附图标记代表相同或相似的步骤或装置模 块。 具体实施方式
以下参照附图来对本发明进行详细描述:
为了实现本发明的技术方案, 首先, 由服务提供商或电信运营商 在公共标识符 ( public identification class ) 中定义一个新属性: 扩展 标识( extension ID )。其中, 该扩展标识可以是任何数据类型的地址。 优选地, 该扩展标识包括至少任意一个非负整数值, 例如, 该扩展标 识由 0至 9中任一或任多个整数值组成。 只要满足共享同一个公共用 户标识的多个用户中的每个用户所对应的扩展标识是唯一的即可。 当用户接入 IMS网络之前, 需要向 S-CSCF发送注册请求消息来 请求注册认证, S-CSCF接收到该注册请求消息后, 根据该注册请求 消息中对应于该用户的私有用户标识, 通过归属用户服务器 (HSS ) 的安全数据认证中心 ( AuC ) 来对该用户进行认证。 同时 S-CSCF还 从 HSS中下载该用户的用户配置文件(user profile ) , 通过该用户配 置文件, S-CSCF即可获取对应于该用户的扩展标识。
需要说明的是,用户接入 IMS网络之前的注册认证过程是现有技 术, 为简明起见, 在此不作赘述。
在注册认证过程中, 该用户的共享公共用户标识以及扩展标识一 起与一个 IP地址绑定。 在之后的会话过程中, 发送至该共享用户标 识以及扩展标识的会话请求消息都将被转发至该 IP 地址所对应的用 户。 由于共享同一个公共用户标识的多个用户所对应的扩展标识不 同, 因此, 对于该共享同一个公共用户标识的多个用户而言, 共享公 共用户标识以及扩展标识一起可以唯一的确定该多个用户中的某一 个用户, 从而实现区分共享同一公共用户标识的多个用户的目的。
以下参照图 1对本发明的技术方案进行详细描述。
图 1示出了根据本发明的一个具体实施方式的在 IMS网络的主叫 S-CSCF 中用于区分共享一个公共用户标识的多个主叫用户设备的方 法流程图。
在图 1所涉及的 IMS网络中, 为了简明起见, 将主叫方网络中的 用户设备, S-CSCF, P-CSCF和 I-CSCF分别称为主叫用户设备, 主 叫 S-CSCF, 主叫 P-CSCF和主叫 I-CSCF, 被叫方网络中的用户设备 称为被叫用户设备。
首先, 在步骤 S11中, 主叫 S-CSCF接收来自主叫用户设备用于 请求建立会话的会话请求消息 (INVITE ) 。
具体的, 主叫 S-CSCF接收到的来自主叫用户设备用于请求建立 会话的会话请求消息是经由主叫 P-CSCF (代理呼叫会话控制功能实 体) 以及主叫 I-CSCF (查询呼叫会话控制功能实体)路由转发至主 叫 S-CSCF (服务呼叫会话控制功能实体) 的。 其中, 该会话请求消息中包括主叫用户设备的公共用户标识以及 该主叫用户设备希望与之建立会话连接的被叫用户设备的公共用户 标识。 当然, 会话请求消息中还包括其他信息, 这是现有技术中已有 的, 为简明起见, 在此不作赘述。
其次, 在步骤 S12中, 主叫 S-CSCF将已获取的对应于该主叫用 户设备的扩展标识放入该会话请求消息中。
其中, 扩展标识用于区分使用同一个共享公共用户标识的多个主 叫用户设备。
进一步的, 主叫 S-CSCF放入会话请求消息中的对应于该用户设 备的扩展标识是在该用户向其进行注册时,该主叫 S-CSCF从 HSS下 载对应于该用户的用户配置文件后从中获取的。
优选地, 主叫 S-CSCF接收到来自主叫用户设备的会话请求消息 后, 首先根据该会话请求消息, 判断该主叫用户设备是否使用共享公 共用户标识。
具体的, 主叫 S-CSCF首先从接收到的会话请求消息中提取该主 叫用户设备的公共用户标识, 然后, 判断该公共用户标识是否为共享 公共用户标识。由于所有共享的公共用户标识都在 IMS网络中进行了 注册, 因此, 主叫 S-CSCF根据会话请求消息中对应于该主叫用户设 备的公共用户标识, 即可判断出其是否为共享的公共用户标识。
如果该主叫用户设备的公共用户标识是共享公共用户标识, 那 么, 主叫 S-CSCF将已获取的对应于该主叫用户设备的扩展标识放入 该会话请求消息中。
更优选地, 当主叫 S-CSCF判断出该主叫用户设备使用共享公共 用户标识后, 进一步判断该主叫用户设备的扩展标识功能是否处于激 活状态。
如果主叫用户设备的扩展标识功能处于激活状态, 则主叫 S-CSCF 将已获取的对应于该主叫用户设备的扩展标识放入会话请求 消息中。
当然, 如果主叫用户设备的扩展标识功能没有处于激活状态, 那 么, 即使该主叫用户设备使用的是共享公共用户标识, 主叫 S-CSCF 也不会将对应于该主叫用户设备的扩展标识放入会话请求消息中。
优选地, 对应于该主叫用户设备的扩展标识可以作为该主叫用户 设备的共享公共用户标识的一部分被加入到会话请求消息中的共享 公共用户标识中去。 基于此, 被叫用户设备无需做任何改进即可接收 到对应于该主叫用户设备的包含扩展标识的共享公共用户标识,从而 在该被叫用户设备需要向该主叫用户设备发起会话请求时, 可以通过 该包含扩展标识的共享公共用户标识来与该主叫用户设备建立会话 连接。
当然, 对应于该主叫用户设备的扩展标识也可以作为一个单独的 参数独立于共享公共用户标识而被加入到会话请求消息中去。 基于 此, 需要对被叫用户设备做出改进以使得其能够接收该扩展用户标 识。
随后, 在步骤 S13中, 主叫 S-CSCF将加入了扩展标识的会话请 求消息发送至被叫用户设备。
之后, 被叫用户设备用 200 OK响应该会话请求。 主叫用户设备 在接收到来自被叫用户设备的 200 OK响应后,发送 ACK至该被叫用 户设备用于向该被叫用户设备证实其已经接收到对该会话请求消息 的最终响应消息了。 本领域技术人员应能理解, 这是现有技术中已有 的, 在此不作赘述。
基于此, 主叫用户设备与被叫用户设备之间建立了会话连接。 需要说明的是, 由于主叫 S-CSCF在接收到的来自主叫用户设备 的会话请求消息中加入了对应于该主叫用户设备的扩展标识, 因此, 在被叫用户设备接收到该会话请求消息后, 即可通过其中的扩展标识 获知该主叫用户设备是共享同一个公共用户标识的多个用户设备中 的哪一个用户设备。 因此, 在此处会话结束后, 如果该被叫用户设备 希望与原来的主叫用户设备再次建立会话连接, 即可以通过原来的主 叫用户设备的共享公共用户标识以及扩展标识与之建立会话连接。 图 1是从主叫用户设备使用共享公共用户标识的角度对本发明的 一个具体实施例进行的描述, 以下将参照图 2从被叫用户设备使用共 享公共用户标识的角度对本发明的另一个具体实施例进行描述。
图 2示出了根据本发明的另一具体实施方式的在 IMS网络的被叫 S-CSCF 中用于将来自主叫用户设备的会话请求消息转发至共享一个 公共用户标识的多个被叫用户设备中的一个被叫用户设备的方法流 程图。
在图 2所涉及的 IMS网络中, 为了简明起见, 将主叫方网络中的 用户设备, S-CSCF, P-CSCF和 I-CSCF分别称为主叫用户设备, 主 叫 S-CSCF, 主叫 P-CSCF和主叫 I-CSCF, 被叫方网络中的用户设备 和 S-CSCF称为被叫用户设备和被叫 S-CSCF。
主叫用户设备首先发送会话请求消息用于请求与被叫用户设备 建立会话连接。
其中, 该会话请求消息通过主叫方网络中的主叫 P-CSCF, 主叫 I-CSCF以及主叫 S-CSCF路由转发至被叫方网络中的被叫 S-CSCF。
在步骤 S21中, 被叫 S-CSCF接收来自主叫用户设备的并经由主 叫 P-CSCF, 主叫 I-CSCF以及主叫 S-CSCF路由转发的用于请求建立 会话的会话请求消息。
其中, 该会话请求消息中包括主叫用户设备的公共用户标识以及 该被叫用户设备的公共用户标识。 当然, 会话请求消息中还包括其他 信息, 这是现有技术中已有的, 为简明起见, 在此不作赘述。
随后,在步骤 S22中,被叫 S-CSCF根据接收到的会话请求消息, 判断该会话请求消息所欲发送之的被叫用户设备是否使用共享公共 用户标识。
具体的, 被叫 S-CSCF从接收到的会话请求消息中提取被叫用户 设备的公共用户标识, 然后, 判断该公共用户标识是否为共享公共用 户标识。 由于所有共享的公共用户标识都在 IMS网絡中进行了注册, 因此, 被叫 S-CSCF根据会话请求消息中对应于该被叫用户设备的公 共用户标识, 即可判断出其是否为共享的公共用户标识。 如果该公共用户标识为共享公共用户标识,那么,在步骤 S23中, 被叫 S-CSCF判断该会话请求消息中是否包含对应于该被叫用户设备 的扩展标识。 其中, 扩展标识用于区分使用同一个共享公共用户标识 的多个被叫用户设备。
如果该会话请求消息中包含对应于被叫用户设备的扩展标识, 则 在步骤 S24中, 被叫 S-CSCF根据该扩展标识以及被叫用户设备的共 享公共用户标识, 将该会话请求消息发送至该被叫用户设备。
进一步的, 由于在该被叫用户设备准备接入 IMS 网絡而向被叫 S-CSCF进行注册认证时, 被叫 S-CSCF从 HSS中下载对应于该被叫 用户设备的用户配置文件, 并从该用户配置文件中荻取了对应于该被 叫用户设备的扩展标识。 而后, 该扩展标识与该被叫用户设备的共享 公共用户标识一起被绑定到一个 IP地址上。 因此, 在步骤 S24中 , 被叫 S-CSCF根据该扩展标识以及该被叫用户设备的共享公共用户标 识, 将该会话请求消息发送至其绑定的 IP地址所对应的被叫用户设 备。
如果该会话请求消息中不包含对应于该被叫用户设备的扩展标 识, 那么, 被叫 S-CSCF可以按照现有技术中已有的发送机制将该会 话请求消息进一步转发。
优选地, 如果该会话请求消息中不包含对应于该被叫用户设备的 扩展标识, 那么, 被叫 S-CSCF可以向主叫用户设备发送询问消息, 其中, 该询问消息用于向主叫用户设备询问是否有对应于该被叫用户 设备的扩展标识提供。
如果主叫用户设备有对应于该被叫用户设备的扩展标识并且向 被叫 S-CSCF提供了该扩展标识, 那么, 该被叫 S-CSCF可以根据该 扩展标识以及被叫用户设备的共享公共用户标识, 将会话请求消息发 送至该被叫用户设备。
优选地, 如果该会话请求消息中包含对应于被叫用户设备的扩展 标识, 那么, 被叫 S-CSCF还可以进一步判断该被叫用户设备的扩展 标识功能是否处于激活状态。 如果该被叫用户设备的扩展标识功能处于激活状态, 则被叫
S-CSCF根据该扩展标识以及被叫用户设备的共享公共用户标识, 将 会话请求消息发送至所述被叫用户设备。
当然, 如果被叫用户设备的扩展标识功能没有处于激活状态, 那 么, 即使会话请求消息中包含对应于该被叫用户设备的扩展标识, 被 叫 S-CSCF也不会理会, 而是按照现有技术中已有的发送规则将该会 话请求消息进一步转发。
相应的被叫用户设备接收到来自主叫用户设备的会话请求消息 后, 可以发送 200 OK响应该会话请求。 主叫用户设备接收到 200 OK 响应后, 发送 ACK至该被叫用户设备用于向该被叫用户设备证实其 已经接收到对该会话请求消息的最终响应消息了。 本领域技术人员应 能理解, 这是现有技术中已有的, 在此不作赘述。
基于此, 主叫用户设备与被叫用户设备之间建立了会话连接。 以上是从方法步骤的角度对本发明的技术方案进行的描述, 以下 将结合图 3和图 4从装置模块的角度对本发明的技术方案进行进一步 的说明。 图 3示出了根据本发明的一个具体实施方式的在 IMS网络的主叫 S-CSCF 中用于区分共享一个公共用户标识的多个主叫用户设备的第 一控制装置的结构框图
在图 3所涉及的 IMS网络中, 为了简明起见, 将主叫方网络中的 用户设备, S-CSCF, P-CSCF和 I-CSCF分别称为主叫用户设备, 主 叫 S-CSCF, 主叫 P-CSCF和主叫 I-CSCF, 被叫方网络中的用户设备 称为被叫用户设备。
首先, 主叫 S-CSCF中的第一控制装置 10中的第一接收装置 101 接收来自主叫用户设备用于请求建立会话的会话请求消息 ( INVITE ) 。
具体的, 第一接收装置 101接收到的来自主叫用户设备用于请求 建立会话的会话请求消息是经由主叫 P-CSCF (代理呼叫会话控制功 能实体) 以及主叫 I-CSCF (查询呼叫会话控制功能实体)路由转发 至主叫 S-CSCF (服务呼叫会话控制功能实体) 的。
其中, 该会话请求消息中包括主叫用户设备的公共用户标识以及 该主叫用户设备希望与之建立会话连接的被叫用户设备的公共用户 标识。 当然, 会话请求消息中还包括其他信息, 这是现有技术中已有 的, 为筒明起见, 在此不作赘述。
其次,主叫 S-CSCF中的第一控制装置 10中的添加装置 102将已 获取的对应于该主叫用户设备的扩展标识放入该会话请求消息中。
其中, 扩展标识用于区分使用同一个共享公共用户标识的多个主 叫用户设备。
进一步的, 添加装置 102放入会话请求消息中的对应于该用户设 备的扩展标识是在该用户向其进行注册时,该主叫 S-CSCF从 HSS下 载对应于该用户的用户配置文件后从中获取的。
优选地, 第一接收装置 101接收到来自主叫用户设备的会话请求 消息后, 主叫 S-CSCF 中的第一控制装置 10 中的第一提取装置 (为 筒明起见, 图 3中未示出)首先从接收到的会话请求消息中提取该主 叫用户设备的公共用户标识, 然后, 第一控制装置 10 中的第一判断 装置(为简明起见, 图 3中未示出)判断该公共用户标识是否为共享 公共用户标识。由于所有共享的公共用户标识都在 IMS网络中进行了 注册, 因此, 主叫 S-CSCF根据会话请求消息中对应于该主叫用户设 备的公共用户标识, 即可判断出其是否为共享的公共用户标识。
如果该主叫用户设备的公共用户标识是共享公共用户标识, 那 么, 添加装置 102将已获取的对应于该主叫用户设备的扩展标识放入 该会话请求消息中。
更优选地, 当第一判断装置判断出该主叫用户设备使用共享公共 用户标识后, 进一步的, 第一控制装置 10 中的第二判断装置 (为简 明起见, 图 3中未示出)判断该主叫用户设备的扩展标识功能是否处 于激活状态。 如果主叫用户设备的扩展标识功能处于激活状态, 则添加装置
102将已获取的对应于该主叫用户设备的扩展标识放入会话请求消息 中。
当然, 如果主叫用户设备的扩展标识功能没有处于激活状态, 那 么, 即使该主叫用户设备使用的是共享公共用户标识, 添加装置 102 也不会将对应于该主叫用户设备的扩展标识放入会话请求消息中。
优选地, 对应于该主叫用户设备的扩展标识可以作为该主叫用户 设备的共享公共用户标识的一部分被加入到会话请求消息中的共享 公共用户标识中去。 基于此, 被叫用户设备无需做任何改进即可接收 到对应于该主叫用户设备的包含扩展标识的共享公共用户标识, 从而 在该被叫用户设备需要向该主叫用户设备发起会话请求时, 可以通过 该包含扩展标识的共享公共用户标识来与该主叫用户设备建立会话 连接。
当然, 对应于该主叫用户设备的扩展标识也可以作为一个单独的 参数独立于共享公共用户标识而被加入到会话请求消息中去。 基于 此, 需要对被叫用户设备做出改进以使得其能够接收该扩展用户标 识。
随后, 主叫 S-CSCF中的第一控制装置 10中的第一发送装置 103 将加入了扩展标识的会话请求消息发送至被叫用户设备。
之后, 被叫用户设备用 200 OK响应该会话请求。 主叫用户设备 在接收到来自被叫用户设备的 200 OK响应后,发送 ACK至该被叫用 户设备用于向该被叫用户设备证实其已经接收到对该会话请求消息 的最终响应消息了。 本领域技术人员应能理解, 这是现有技术中已有 的, 在此不作赘述。
基于此, 主叫用户设备与被叫用户设备之间建立了会话连接。 需要说明的是, 由于主叫 S-CSCF在接收到的来自主叫用户设备 的会话请求消息中加入了对应于该主叫用户设备的扩展标识, 因此, 在被叫用户设备接收到该会话请求消息后, 即可通过其中的扩展标识 获知该主叫用户设备是共享同一个公共用户标识的多个用户设备中 的哪一个用户设备。 因此, 在此处会话结束后, 如果该被叫用户设备 希望与原来的主叫用户设备再次建立会话连接, 即可以通过原来的主 叫用户设备的共享公共用户标识以及扩展标识与之建立会话连接。 图 3是从主叫用户设备使用共享公共用户标识的角度对本发明 的一个具体实施例进行的描述, 以下将参照图 4从被叫用户设备使用 共享公共用户标识的角度对本发明的另一个具体实施例进行描述。
图 4示出了根据本发明的另一具体实施方式的在 IMS网络的被 叫 S-CSCF中用于将来自主叫用户设备的会话请求消息转发至共享一 个公共用户标识的多个被叫用户设备中的一个被叫用户设备的第二 控制装置的结构框图。
在图 4所涉及的 IMS网络中, 为了简明起见, 将主叫方网絡中 的用户设备, S-CSCF, P-CSCF和 I-CSCF分别称为主叫用户设备, 主叫 S-CSCF, 主叫 P-CSCF和主叫 I-CSCF, 被叫方网络中的用户设 备和 S-CSCF称为被叫用户设备和被叫 S-CSCF。
主叫用户设备首先发送会话请求消息用于请求与被叫用户设备 建立会话连接。
其中, 该会话请求消息通过主叫方网络中的主叫 P-CSCF, 主叫 I-CSCF以及主叫 S-CSCF路由转发至被叫方网络中的被叫 S-CSCF。
被叫 S-CSCF中的第二控制装置 20中的第二接收装置 201接收 来自主叫用户设备的并经由主叫 P-CSCF , 主叫 I-CSCF 以及主叫 S-CSCF路由转发的用于请求建立会话的会话请求消息。
其中, 该会话请求消息中包括主叫用户设备的公共用户标识以 及该被叫用户设备的公共用户标识。 当然, 会话请求消息中还包括其 他信息, 这是现有技术中已有的, 为简明起见, 在此不作赘述。
随后,被叫 S-CSCF中的第二控制装置 20中的第三判断装置 202 根据接收到的会话请求消息, 判断该会话请求消息所欲发送之的被叫 用户设备是否使用共享公共用户标识。
具体的, 第三判断装置 202中的第二提取装置 (为简明起见, 图 4中未示出)从接收到的会话请求消息中提取被叫用户设备的公共 用户标识, 然后, 第三判断装置 202中的第六判断装置(为简明起见, 图 4中未示出)判断该公共用户标识是否为共享公共用户标识。 由于 所有共享的公共用户标识都在 IMS 网络中进行了注册, 因此, 被叫 S-CSCF 根据会话请求消息中对应于该被叫用户设备的公共用户标 识, 即可判断出其是否为共享的公共用户标识。
如果该公共用户标识为共享公共用户标识, 那么,被叫 S-CSCF 中的第二控制装置 20中的第四判断装置 203判断该会话请求消息中 是否包含对应于该被叫用户设备的扩展标识。 其中, 扩展标识用于区 分使用同一个共享公共用户标识的多个被叫用户设备。
如果该会话请求消息中包含对应于被叫用户设备的扩展标识, 则被叫 S-CSCF中的第二控制装置 20中的第四发送装置 204根据该 扩展标识以及被叫用户设备的共享公共用户标识, 将该会话请求消息 发送至该被叫用户设备。
进一步的, 由于在该被叫用户设备准备接入 IMS网络而向被叫 S-CSCF进行注册认证时, 被叫 S-CSCF从 HSS中下载对应于该被叫 用户设备的用户配置文件, 并从该用户配置文件中获取了对应于该被 叫用户设备的扩展标识。 而后, 该扩展标识与该被叫用户设备的共享 公共用户标识一起被绑定到一个 IP地址上。 因此, 第二发送装置 204 根据该扩展标识以及该被叫用户设备的共享公共用户标识, 将该会话 请求消息发送至其绑定的 IP地址所对应的被叫用户设备。
如果该会话请求消息中不包含对应于该被叫用户设备的扩展标 识, 那么, 第二发送装置 204可以按照现有技术中已有的发送机制将 该会话请求消息进一步转发。
优选地, 如果该会话请求消息中不包含对应于该被叫用户设备 的扩展标识, 那么, 被叫 S-CSCF 中的第二控制装置 20 中的第三发 送装置(为简明起见, 图 4中未示出)可以向主叫用户设备发送询问 消息, 其中, 该询问消息用于向主叫用户设备询问是否有对应于该被 叫用户设备的扩展标识提供。 如果主叫用户设备有对应于该被叫用户设备的扩展标识并且向 被叫 S-CSCF提供了该扩展标识, 那么, 该被叫 S-CSCF中的第二控 制装置 20中的第四发送装置 (为简明起见, 图 4中未示出) 可以根 据该扩展标识以及被叫用户设备的共享公共用户标识, 将会话请求消 息发送至该被叫用户设备。
优选地, 如果该会话请求消息中包含对应于被叫用户设备的扩 展标识, 那么, 被叫 S-CSCF 中的第二控制装置 20 中的第五判断装 置(为简明起见, 图 4中未示出)还可以进一步判断该被叫用户设备 的扩展标识功能是否处于激活状态。
如果该被叫用户设备的扩展标识功能处于激活状态, 则第二发 送装置 204根据该扩展标识以及被叫用户设备的共享公共用户标识, 将会话请求消息发送至所述被叫用户设备。
当然, 如果被叫用户设备的扩展标识功能没有处于激活状态, 那么, 即使会话请求消息中包含对应于该被叫用户设备的扩展标识, 被叫 S-CSCF也不会理会, 而是按照现有技术中已有的发送规则将该 会话请求消息进一步转发。
相应的被叫用户设备接收到来自主叫用户设备的会话请求消息 后, 可以发送 200 OK响应该会话请求。 主叫用户设备接收到 200 OK 响应后, 发送 ACK至该被叫用户设备用于向该被叫用户设备证实其 已经接收到对该会话请求消息的最终响应消息了。 本领域技术人员应 能理解, 这是现有技术中已有的, 在此不作赘述。
基于此, 主叫用户设备与被叫用户设备之间建立了会话连接。 以上对本发明的具体实施例进行了描述。 需要理解的是, 本发 明并不局限于上述特定实施方式, 本领域技术人员可以在所附权利要 求的范围内做出各种变形或修改。

Claims

权 利 要 求 书
1. 一种在 IP多媒体子系统网络的主叫服务呼叫会话控制功能实 体中用于区分共享一个公共用户标识的多个主叫用户设备的方法, 其 中, 包括以下步骤:
a. 接收来自主叫用户设备用于请求建立会话的会话请求消息; c 将对应于所述主叫用户设备的扩展标识放入所述会话请求消 息中, 其中, 所述扩展标识用于区分所述多个主叫用户设备;
d. 将通过步骤 c更新的会话请求消息发送至被叫用户设备。
2. 根据权利要求 1所述的方法, 其特征在于, 所述步骤 a之后, 所述步骤 c之前还包括以下步骤:
bl . 从所述会话请求消息中提取所述主叫用户设备的公共用户标 识;
b2. 判断所述公共用户标识是否为共享公共用户标识;
其中, 所述步骤 C还包括: 如果所述公共用户标识为共享公共用 户标识, 将对应于所述主叫用户设备的扩展标识放入所述会话请求消 息中。
3. 根据权利要求 2所述的方法, 其特征在于, 所述步骤 b2之后, 所述步骤 c之后, 还包括以下步骤:
- 判断所述主叫用户设备的扩展标识功能是否处于激活状态; 其中,所述步骤 c还包括:如果所述扩展标识功能处于激活状态, 将对应于所述主叫用户设备的扩展标识放入所述会话请求消息中。
4. 根据权利要求 1至 3中任一项所述的方法, 其特征在于, 所述 扩展标识可以为任何数据类型的地址。
5. 根据权利要求 4所述的方法, 其特征在于, 所述扩展标识包括 至少任意一个非负整数值。
6. —种在 IP多媒体子系统网络的被叫服务呼叫会话控制功能实 体中用于将来自主叫用户设备的会话请求消息转发至共享一个公共 用户标识的多个被叫用户设备中的一个被叫用户设备的方法, 其中, 包括以下步骤:
ί. 接收来自所述主叫用户设备用于请求建立会话的会话请求消 息;
ii. 根据所述会话请求消息, 判断所述被叫用户设备是否使用共 享公共用户标识;
iii. 如果所述被叫用户设备使用共享公共用户标识, 判断所述会 话请求消息中是否包含对应于所述被叫用户设备的扩展标识, 其中, 所述扩展标识用于区分所述多个被叫用户设备;
iv. 如果所述会话请求消息中包含所述扩展标识, 则根据所述扩 展标识以及所述被叫用户设备的共享公共用户标识, 将所述会话请求 消息发送至所述被叫用户设备。
7. 根据权利要求 6所述的方法, 其特征在于, 所述步骤 iii之后 还包括以下步骤:
v. 如果所述会话请求消息中不包含所述扩展标识, 向所述主叫 用户设备发送询问消息, 所述询问消息用于向所述主叫用户设备询问 是否有对应于所述被叫用户设备的扩展标识提供;
vi. 根据所述主叫用户设备提供的对应于所述被叫用户设备的扩 展标识以及所述被叫用户设备的共享公共用户标识, 将所述会话请求 消息发送至所述被叫用户设备。
8. 根据权利要求 6所述的方法, 其特征在于, 所述步骤 iii之后, 所述步骤 iv之前还包括以下步骤:
- 如果所述会话请求消息中包含扩展标识, 判断所述被叫用户设 备的扩展标识功能是否处于激活状态;
其中,所述步骤 iv还包括:如果所述扩展标识功能处于激活状态, 则根据所述扩展标识以及所述被叫用户设备的共享公共用户标识, 将 所述会话请求消息发送至所述被叫用户设备。
9. 根据权利要求 6至 8中任一项所述的方法, 其特征在于, 所 述步骤 ii还包括以下步骤:
iii . 从所述会话请求消息中提取所述被叫用户设备的公共用户标 识;
ii2. 判断所述公共用户标识是否为共享公共用户标识;
其中, 所述步驟 m还包括: 如果所述公共用户标识为共享公共用 户标识, 判断所述会话请求消息中是否包含对应于所述被叫用户设备 的扩展标识。
10. 根据权利要求 6至 9中任一项所述的方法, 其特征在于, 所 述扩展标识可以为任何数据类型的地址。
11. 根据权利要求 10所述的方法, 其特征在于, 所述扩展标识包 括至少任意一个非负整数值。
12. 一种在 IP多媒体子系统网络的主叫服务呼叫会话控制功能 实体中用于区分共享一个公共用户标识的多个主叫用户设备的第一 控制装置, 其中, 包括:
第一接收装置, 用于接收来自主叫用户设备用于请求建立会话的 会话请求消息;
添加装置, 用于将对应于所述主叫用户设备的扩展标识放入所述 会话请求消息中, 其中, 所述扩展标识用于区分所述多个主叫用户设 备;
第一发送装置, 用于将通过添加装置更新的会话请求消息发送至 被叫用户设备。
13. 根据权利要求 12所述的第一控制装置,其特征在于,还包括: 第一提取装置, 用于从所述会话请求消息中提取所述主叫用户设 备的公共用户标识;
第一判断装置, 用于判断所述公共用户标识是否为共享公共用户 标识;
其中, 所述添加装置还用于如果所述公共用户标识为共享公共用 户标识, 将对应于所迷主叫用户设备的扩展标识放入所述会话请求消 息中。
14. 根据权利要求 13所述的第一控制装置,其特征在于,还包括: 第二判断装置, 用于判断所述主叫用户设备的扩展标识功能是否 处于激活状态;
其中, 所述添加装置还用于如果所述扩展标识功能处于激活状 态, 将对应于所述主叫用户设备的扩展标识放入所述会话请求消息 中。
15. 根据权利要求 12至 14中任一项所述的第一控制装置, 其特 征在于, 所述扩展标识可以为任何数据类型的地址。
16. 根据权利要求 15所述的第一控制装置, 其特征在于, 所述扩 展标识包括至少任意一个非负整数值。
17. 一种在 IP多媒体子系统网络的被叫服务呼叫会话控制功能 实体中用于将来自主叫用户设备的会话请求消息转发至共享一个公 共用户标识的多个被叫用户设备中的一个被叫用户设备的第二控制 装置, 其中, 包括:
第二接收装置, 用于接收来自所述主叫用户设备用于请求建立会 话的会话请求消息;
第三判断装置, 用于根据所述会话请求消息, 判断所述被叫用户 设备是否使用共享公共用户标识;
第四判断装置, 用于如果所述被叫用户设备使用共享公共用户标 识, 判断所述会话请求消息中是否包含对应于所述被叫用户设备的扩 展标识, 其中, 所述扩展标识用于区分所述多个被叫用户设备;
第二发送装置, 用于如果所述会话请求消息中包含所述扩展标 识, 则根据所述扩展标识以及所述被叫用户设备的共享公共用户标 识, 将所述会话请求消息发送至所述被叫用户设备。
18. 根据权利要求 17所述的第二控制装置,其特征在于,还包括: 第三发送装置, 用于如果所述会话请求消息中不包含所述扩展标 识, 向所述主叫用户设备发送询问消息, 所述询问消息用于向所述主 叫用户设备询问是否有对应于所述被叫用户设备的扩展标识提供; 第四发送装置, 用于根据所述主叫用户设备提供的对应于所述被 叫用户设备的扩展标识以及所述被叫用户设备的共享公共用户标识, 将所述会话请求消息发送至所述被叫用户设备。
19. 根据权利要求 17所述的第二控制装置,其特征在于,还包括: 第五判断装置, 用于如果所述会话请求消息中包含扩展标识, 判 断所述被叫用户设备的扩展标识功能是否处于激活状态;
其中, 所述第二发送装置还用于如果所述扩展标识功能处于激活 状态, 则根据所述扩展标识以及所述被叫用户设备的共享公共用户标 识, 将所述会话请求消息发送至所述被叫用户设备。
20. 根据权利要求 17至 19中任一项所述的第二控制装置, 其特 征在于, 所述第三判断装置还包括:
第二提取装置, 用于从所述会话请求消息中提取所述被叫用户设 备的公共用户标识;
第六判断装置, 用于判断所述公共用户标识是否为共享公共用户 标识;
其中, 所述第四判断装置还用于如果所述公共用户标识为共享公 共用户标识, 判断所述会话请求消息中是否包含对应于所述被叫用户 设备的扩展标识。
21. 根据权利要求 17至 20中任一项所述的第二控制装置, 其特 征在于, 所述扩展标识可以为任何数据类型的地址。
22. 根据权利要求 21所述的第二控制装置, 其特征在于, 所述扩 展标识包括至少任意一个非负整数值。
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EP2398193A4 (en) 2015-04-08
CN101800945A (zh) 2010-08-11
EP2398193A1 (en) 2011-12-21
KR101602521B1 (ko) 2016-03-10
JP2012517720A (ja) 2012-08-02
US8966091B2 (en) 2015-02-24
KR20110113630A (ko) 2011-10-17
JP5718827B2 (ja) 2015-05-13
US20110289223A1 (en) 2011-11-24

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