WO2007095802A1 - System and method for realizing color-image service - Google Patents

System and method for realizing color-image service Download PDF

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Publication number
WO2007095802A1
WO2007095802A1 PCT/CN2006/002933 CN2006002933W WO2007095802A1 WO 2007095802 A1 WO2007095802 A1 WO 2007095802A1 CN 2006002933 W CN2006002933 W CN 2006002933W WO 2007095802 A1 WO2007095802 A1 WO 2007095802A1
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WO
WIPO (PCT)
Prior art keywords
color image
resource
entity
service
session
Prior art date
Application number
PCT/CN2006/002933
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English (en)
French (fr)
Inventor
Junxian Zhao
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.
Priority to CN200680011755.5A priority Critical patent/CN101156426B/zh
Publication of WO2007095802A1 publication Critical patent/WO2007095802A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42017—Customized ring-back tones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42025—Calling or Called party identification service
    • H04M3/42034—Calling party identification service
    • H04M3/42042—Notifying the called party of information on the calling party
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1069—Session establishment or de-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1083—In-session procedures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1096—Supplementary features, e.g. call forwarding or call holding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols
    • H04L65/1104—Session initiation protocol [SIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H04L65/401—Support for services or applications wherein the services involve a main real-time session and one or more additional parallel real-time or time sensitive sessions, e.g. white board sharing or spawning of a subconference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/141—Setup of application sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols

Definitions

  • the present invention relates to a system and method for implementing a color image service, and more particularly to a system and method for implementing a color image service in an Internet Protocol Multimedia Subsystem (IMS).
  • IMS Internet Protocol Multimedia Subsystem
  • the present invention provides a system and method for implementing a color image service, which is capable of realizing customized color image resources for a called terminal by a calling terminal.
  • the invention also provides an application server (AS, Application Server) to realize control of the color image service.
  • AS Application Server
  • the present invention also provides a user terminal, which is a called terminal of a color image service, capable of playing a customized color image resource for the calling terminal.
  • the present invention also provides a multimedia resource function (MRP), which realizes playing a color image resource customized by the calling terminal to the called terminal to the called terminal in the color image service.
  • MRP multimedia resource function
  • a resource storage entity configured to store a color image resource customized by the calling terminal
  • a resource playing entity configured to download the color image resource from a resource storage entity, and play the color image resource
  • the color image service control entity sends the storage address of the color image resource to the resource playback entity.
  • a method for implementing a color image service includes:
  • the color image resource customized by the calling terminal is stored in the resource storage entity
  • the color image service control entity acquires a storage address of the color image resource, and sends the storage address of the color image resource to the resource playing entity;
  • the resource play entity downloads the color image resource from the resource storage entity according to the received address and plays the color image resource.
  • An application server includes:
  • the color image resource notification module obtains the storage address of the color image resource customized by the calling terminal and sends it to the resource playing entity after receiving the official session information sent by the calling terminal.
  • a user terminal includes:
  • the color image resource downloading module downloads the color image resource from the color image storage entity after receiving the storage address of the color image resource customized by the calling terminal sent by the color image service control entity; the color image resource playing module is The user is called to play the color image resource before picking up the phone; after detecting that the called user picks up the phone, stop playing the color image resource.
  • a multimedia resource functional entity includes:
  • the image resource downloading module downloads the color image resource from the color image storage entity after receiving the storage address of the color image resource customized by the calling terminal sent by the color image service control entity;
  • the color image resource playing module interacts with the called terminal to exchange the color image session information, establishes a media channel for playing the color image resource with the called terminal, and plays the color image resource to the called terminal through the established media channel; After receiving the notification of the called user's off-hook event sent by the color image service control entity, the image resource is stopped from playing. It can be seen from the above technical solution that the color image resource customized by the calling terminal is stored in a resource storage entity accessible by the resource playing entity having the color image resource downloading and playing capability, and the calling image is called when the calling terminal calls the called terminal.
  • the service control entity sends the storage address of the customized color image resource of the calling terminal to the resource playing entity, and the resource playing entity downloads the customized color image resource of the calling terminal from the resource storage entity, and performs the call flow to the called terminal.
  • the resource playing entity downloads the customized color image resource of the calling terminal from the resource storage entity, and performs the call flow to the called terminal.
  • the ringing prompts the customized image resource of the calling terminal is played to the called terminal. Therefore, the present invention can realize that the calling terminal customizes the color image resource for the called terminal.
  • FIG. 1 is a networking diagram of a first system for implementing a color image service according to the present invention.
  • FIG. 2 is a networking diagram of a second system for implementing a color image service according to the present invention.
  • FIG. 3 is a schematic structural diagram of a session service AS according to Embodiment 1 of the present invention.
  • FIG. 3b is a schematic structural diagram of a called terminal according to Embodiment 1 of the present invention.
  • FIG. 3c is a flowchart of implementing a color image service under IMS in the first embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a session service AS in Embodiment 2 of the present invention.
  • FIG. 4b is a schematic structural diagram of an MRF in Embodiment 2 of the present invention.
  • FIG. 4c is a flowchart of implementing a color image service under IMS in Embodiment 2 of the present invention.
  • FIG. 5 is a flowchart of implementing a color image service under IMS in Embodiment 3 of the present invention. Mode for carrying out the invention
  • the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that The specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
  • the core idea of the present invention is: pre-store the color image resource customized by the calling terminal in a resource storage entity accessible by the resource playing entity having the color image resource downloading and playing capability, and when the calling terminal calls the called terminal, the color
  • the service control entity sends the storage address of the color image resource customized by the calling terminal to the resource playing entity, and the resource playing entity downloads the color image resource customized by the calling terminal from the resource storage entity and plays the image to the called terminal.
  • FIG. 1 is a networking diagram of a system for implementing a color image service according to the first embodiment of the present invention.
  • a called terminal is used as a resource playing entity.
  • the called terminal itself is required to have a color image resource download and Playability.
  • the customized color image resource is stored in the resource storage entity accessible by the called terminal, and the color image service control entity can obtain the storage address of the color image resource customized by the calling terminal in real time.
  • the color image service control entity is configured to send the storage address of the color image resource customized by the calling terminal to the called terminal when the calling terminal calls the called terminal.
  • the called terminal is configured to download the customized color image resource of the calling terminal from the resource storage entity, and play the downloaded color image resource when the call flow is performed to play the ringing prompt to the called terminal.
  • FIG. 2 is a networking diagram of a second system for implementing a color image service according to the present invention.
  • an entity having a color image resource downloading and playing capability other than the called terminal is used as a resource playing entity.
  • the called terminal there is no requirement for the called terminal itself to have the color image resource downloading and playing capability.
  • the customized color image resource is stored in the resource broadcast.
  • the color image service control entity can obtain the storage address of the color image resource customized by the calling terminal in real time.
  • the color image service control entity is configured to send, when the calling terminal calls the called terminal, the storage address of the color image resource customized by the calling terminal to the resource playing entity, and is used to exchange the interaction between the resource playing entity and the called terminal.
  • Color image session information establishing a media channel between the resource playing entity and the called terminal for playing the color image resource, and after learning the off-hook event of the called user, instructing the resource playing entity to stop playing the color image to the called terminal Resources.
  • the resource playing entity is configured to download the customized color image resource of the calling terminal from the resource storage entity, and play the downloaded color image resource to the called terminal when the call flow is performed to play the ringing prompt to the called terminal.
  • Different network entities are used as resource play entities in different networks.
  • a multimedia resource function MRF can be used as a resource play entity.
  • the following embodiments take the method of implementing the color image service under the IMS architecture as an example to explain in detail how the present invention implements the color image service.
  • the AS is used as the color image service control entity in the following embodiments.
  • the session service AS registered by the third party of the calling terminal is used as the color image service control entity, and the session service AS registered by the third party of the calling terminal refers to a third party, usually an S-CSCF, instead of the calling party.
  • Session service AS registered by the terminal is simply referred to as the session service AS.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the called terminal in this embodiment has the capability of downloading and playing back the color image resources.
  • the color image resource customized by the calling terminal is stored in a resource storage entity that can be addressed by a Uniform Resource Locator (URL) address in the IMS network, and is controlled by the session service AS as a color image service.
  • the entity, the session service AS can obtain the URL address of the color image resource customized by the calling terminal in real time.
  • the URL address of the color image resource customized by the calling terminal may be stored in the session service AS, or may be stored in a session service AS such as a Home Subscriber Server (HSS), which can access and acquire data. center.
  • HSS Home Subscriber Server
  • FIG. 3a shows the structure of the session service AS.
  • the session service AS includes:
  • the color image resource notification module obtains the storage address of the color image resource customized by the calling terminal and sends it to the called terminal after receiving the formal session information sent by the calling terminal.
  • the session service AS further includes: a color image resource address storage module, configured to store a storage address of the color image resource customized by the calling terminal.
  • Figure 3b shows a schematic diagram of the structure of the called terminal as a resource playing entity.
  • the called terminal that is the resource playing entity includes:
  • a color image resource downloading module configured to download the color image resource from the color image storage entity after receiving the storage address of the color image resource customized by the calling terminal sent by the session service AS;
  • the color image resource playing module is configured to play the color image resource before the called user picks up the phone; after detecting that the called user picks up the phone, stop playing the color image resource.
  • FIG. 3 is a flowchart of a method for implementing a color image service in an IMS according to the first embodiment of the present invention.
  • the method for implementing a color image service under the IMS in the first embodiment of the present invention includes:
  • Step 301 The calling terminal that has customized the color image resource sends an invitation (INVITE) message carrying a session description protocol (SDP) describing the formal session information to the session service AS.
  • SDP session description protocol
  • the SDP message body of the official session information will be identified as SDP-1.
  • Step 302 The session service AS obtains the URL address of the color image resource customized by the calling terminal, adds the URL address to the invitation message, and sends an invitation message with the added URL address to the called terminal.
  • the UL address may be added in the Call-Info header field of the invitation message, other optional fields such as Alert-Info, or in an extensible Mark Language (XML) script.
  • XML extensible Mark Language
  • the session service AS may obtain the URL address of the color image resource customized by the calling terminal from the URL address record of the locally stored color image resource; or obtain the calling terminal customization from the data center that saves the color image resource UL address, for example, the HSS.
  • the URL address of the color image resource may be obtained from the URL address record of the locally stored color image resource; or obtain the calling terminal customization from the data center that saves the color image resource UL address, for example, the HSS.
  • Step 303 The called terminal downloads the color image resource customized by the calling terminal from the resource storage entity according to the URL address added in the invitation message.
  • the corresponding download mode such as the Hypertext Transfer Protocol (HTTP) or the File Transfer Protocol (FTP), may be adopted according to the format of the URL address.
  • HTTP Hypertext Transfer Protocol
  • FTP File Transfer Protocol
  • Steps 304 to 307 The called terminal returns a message 183 indicating the progress of the session to the calling terminal through the session service AS, where the 183 message carries the SDP message body SDP-, SDP-1' of the called terminal responding to SDP-1 Good formal session information; the calling terminal sends a temporary response confirmation (PRACK) message of the response 183 message to the called terminal through the session service AS; the called terminal returns a 200 OK message responding to the PRACK message to the calling terminal through the session service AS.
  • PRACK temporary response confirmation
  • Step 308 The called terminal starts to play the customized color image resource of the calling terminal, and sends a message 180 indicating that the called terminal rings to the calling terminal through the session service AS.
  • the called terminal can start to play the color image and then send the 180 message, or can send the 180 message first and then start playing the color image, there is no strict execution order between the two.
  • Steps 309 ⁇ 310 When the called user picks up the phone, the called terminal sends a 200 OK message indicating that the called user picks up the phone to the calling terminal through the session service AS; the calling terminal passes the session industry The service AS returns an acknowledgment (ACK) message in response to the 200 OK message in step 309 to the called terminal, and the called terminal stops playing the color image resource customized by the calling terminal.
  • ACK acknowledgment
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • This embodiment adopts the principle of the second system for realizing a color image service of the present invention, that is, an entity having a color image resource downloading and playing capability other than the called terminal in the IMS network as a resource playing entity.
  • the MRF plays the entity as a resource.
  • the MRF can play the color image resource to the called terminal by means of a Real Time Transport Protocol (RTP) media stream.
  • RTP Real Time Transport Protocol
  • the color image resource in this embodiment should be a multimedia resource suitable for playing in an RTP media stream.
  • the color image resource customized by the calling terminal is stored in a resource storage entity that can be addressed by the URL address in the IMS, and the session service AS is used as the color image service control entity, and the session service AS can know the calling party in real time.
  • the imL address of the customized color image resource of the terminal may be stored in the session service AS, or may be stored in a data center accessible by the session service AS such as HSS.
  • Figure 4a shows a schematic diagram of the structure of the session service AS.
  • the session service AS includes:
  • the color image resource notification module obtains the storage address of the color image resource customized by the calling terminal and sends it to the MRP after receiving the formal session information sent by the calling terminal;
  • the color image service control module is configured to forward the color image session information between the MRF and the called terminal by using the MRF and the called terminal, so that the media channel for playing the color image resource between the MRF and the called terminal is established; After the user picks up the event, the MRF is instructed to stop playing the color image resource to the called terminal.
  • the session service AS further includes: a color image resource address storage module, configured to store The storage address of the color image resource customized by the calling terminal.
  • Figure 4b shows a schematic diagram of the structure of MF.
  • the MRF includes:
  • the color image resource downloading module downloads the color image resource from the color image storage entity after receiving the storage address of the color image resource customized by the calling terminal sent by the session service AS;
  • the color image resource playing module interacts with the called terminal to exchange the color image session information, establishes a media channel for playing the color image resource with the called terminal, and plays the color image resource to the called terminal through the established media channel; After receiving the off-hook event notification of the called user sent by the session service AS, the playback of the color image resource to the called terminal is stopped.
  • Figure 4c is a flowchart of a method for implementing a color image service in an IMS according to a second embodiment of the present invention.
  • the method for implementing a color image service under the IMS in the second embodiment of the present invention includes:
  • Step 401 The calling terminal that has customized the color image resource sends an invitation message carrying the SDP message body describing the formal session information to the session service AS.
  • the SDP message body of the official session information will be identified as SDP-1.
  • Step 402 The session service AS deletes the SDP-1 from the invitation message, adds the URL address of the color image resource customized by the calling terminal to the invitation message, and sends an invitation message for deleting the SDP-1 and adding the URL address to the MRF.
  • the U L address can be added to the Call-Info header field of the invite message, other optional fields such as Alert-Info, or an XML script.
  • Step 403 The MRF downloads the customized color image resource of the calling terminal from the resource storage entity according to the URL address added in the invitation message.
  • the format of the addressable address is different, and the corresponding download mode is adopted, for example, HTTP or FTP.
  • Step 404 The MRF returns a 200 OK message to the session service AS, where the 200 OK message carries an SDP message body describing the session information that the MRF plays the color image resource to the called terminal.
  • the MRF broadcasts the session of the color image resource to the called terminal.
  • the SDP message body of the color image session information is described as SDP-2 in this embodiment.
  • Step 405 The session service AS adds the SDP-2 to the invitation message in step 401, and sends an invitation message to add the SDP-2 to the called terminal.
  • the invitation message sent by the session service AS to the called terminal is An invitation message carrying SDP-1 and SDP-2.
  • Step 406 The called terminal returns a message 183 to the session service AS, where the 183 message carries the SDP message body SDP-1' of the called terminal acknowledging SDP-1 and the SDP message body SDP-2' of the called terminal acknowledging SDP-2.
  • SDP- describes the negotiated formal session information
  • SDP-2' describes the negotiated color image session information.
  • Steps 407 ⁇ 409 The session service AS deletes the SDP-2' from the 183 message, and returns the 183 message of the deleted SDP-2' to the calling terminal; the calling terminal sends the PRACK message of the response 183 message to the session service AS. The called terminal; the called terminal returns a 200 OK message in response to the PRACK message to the calling terminal through the session service AS.
  • Step 410 The session service AS returns an ACK message carrying the SDP-2' to the MRJF. At this point, the media channel setup of the color image session between the MRF and the called terminal is completed.
  • Steps 411 ⁇ 414 The called terminal sends a 180 message to the session service AS; the session service AS sends a trigger (INFO) message to notify the start of playing the color image resource to the MRF; the MRF returns a 200 OK message in response to the INFO message to the session service AS, and Start to play the customized color image resource of the calling terminal to the called terminal through the media channel between itself and the called terminal; the session service AS forwards the 180 message to the calling terminal.
  • INFO trigger
  • Steps 415 to 417 When the called user picks up the phone, the called terminal sends a 200 OK message indicating that the called user picks up the phone to the session service AS; the session service AS sends a notification to end the end of the playing of the color image resource (BYE) message to the MRF.
  • the MRF stops playing the customized color image resource of the calling terminal to the called terminal through the media channel between itself and the called terminal, and returns a 200 OK message in response to the BYE message to the session service AS.
  • Steps 418 ⁇ 419 The session service AS preamble indicates that the called user picks up the phone and cancels the 200 OK cancellation.
  • the calling terminal sends an ACK message in response to the 200 OK message in step 418 to the called terminal through the session service AS.
  • the color image service provided here is a kind of calling customized service, and the calling user can customize the color image service or cancel the service. If customized, the color image will be used in the call, otherwise there will be no color image service.
  • the called terminal can choose to receive or not receive the customized color image resource of the calling terminal. For example, the called user can determine whether to display the customized color image resource of the calling terminal through the customized color image display service, if the customized color image display is customized. The business displays the color image. If the color image display service is not customized, the color image is not displayed. Alternatively, the called user can also determine whether to display the customized color image resource of the calling terminal through the customized color image display restriction service. If the display is restricted, the color image is not displayed, and if the color image display is not customized, the color image is displayed.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • This embodiment also adopts the principle of the second system for implementing the color image service of the present invention.
  • the main difference from the second embodiment is that the second embodiment adopts an early media solution of the application server model, that is, two SDP message bodies are used, wherein One SDP message body is used to describe the formal session information, and another SDP message body is used to describe the color image session information.
  • This embodiment adopts an early media scheme of the gateway model, that is, only one SDP message body is used to simultaneously describe the formal session information and the color image. Session information, part of the SDP message body is used to describe the formal session information, and another part is used to describe the color image session information.
  • the structure of the session service AS and the MRF of the present embodiment is the same as that of the session service AS of FIG. 4a and the MRF of FIG. 4b, respectively, and details are not described herein.
  • the method for implementing a color image service in an IMS according to Embodiment 3 of the present invention includes:
  • Step 501 The calling terminal that customizes the color image resource sends a description to describe the formal session information.
  • the SDP message body of the official session information will be identified as SDP-1.
  • Step 502 The session service AS deletes the SDP-1 from the invitation message, adds the URL address of the color image resource customized by the calling terminal to the invitation message, and sends an invitation message for deleting the SDP-1 and adding the URL address to the MRF.
  • the URL address can be added to the Call-Info header field of the invitation message, other optional fields such as Alert-Info, or an ML script.
  • Step 503 The MRF downloads the customized color image resource of the calling terminal from the resource storage entity according to the URL address added in the invitation message.
  • the corresponding download mode such as HTTP mode or FTP mode, may be adopted according to different U L address formats.
  • Step 504 The MR returns a 200 OK message to the session service AS, and the 200 OK message carries an SDP message body that describes the color image session information.
  • the SDP message body identifier of the color image session information is SDP-2.
  • Step 505 The session service AS constructs an SDP message body that simultaneously describes the official session information and the color image session information.
  • the newly constructed SDP message body is simply referred to as SDP-3
  • the session service AS deletes the SDP from the invitation message in step 501. 1.
  • Step 506 The called terminal returns a message 183 to the session service AS, where the 183 message carries the SDP message body SDP-3' of the called terminal in response to the SDP-3, that is, the negotiated formality is also described in the SDP-3'. Session information and negotiated color image session information.
  • Step 507 The session service AS deletes the part that describes the negotiated color image session information from the SDP-3'.
  • SDP-4' the SDP-3' that has undergone the above deletion process
  • the session service AS sends the SDP- 4's 183 message to the calling terminal, obviously, SDP-4' only describes the negotiated formal session information.
  • Steps 508 ⁇ 509 The calling terminal sends a PRACK message in response to the 183 message in step 507 to the called terminal through the session service AS; the called terminal returns through the session service AS The 200 OK message of the PRACK message should be sent to the calling terminal.
  • Step 510 The session service AS deletes the part that describes the negotiated formal session information from the SDP-3'.
  • SDP-5' the SDP-3' that has undergone the above deletion process
  • the session service AS sends and carries the SDP-5.
  • the 'ACK message' is given to the MRF.
  • the SDP-5' only describes the negotiated color image session information.
  • Steps 511 ⁇ 514 The called terminal sends a 180 message to the session service AS; the session service AS sends an INFO message to notify the start of playing the color image resource to the MRF; the MRF returns a 200 OK message responding to the I PO message to the session service AS, and passes the self.
  • the media channel between the called terminal and the called terminal plays the color image resource customized by the calling terminal to the called terminal; the session service AS forwards the 180 message to the calling terminal.
  • Steps 515 - 517 When the called user picks up the phone, the called terminal sends a 200 OK message indicating that the called user picks up the phone to the session service AS; the session service AS sends a message to notify the end of playing the color image resource to the MRF; The color image resource customized by the calling terminal is played to the called terminal through the media channel between itself and the called terminal, and a 200 OK message in response to the BYE message is returned to the session service AS.
  • Steps 518 ⁇ 521 The session service AS sends an update (UPDATE) message to the called terminal, and the message is used to notify the called terminal to modify the attribute of the color image session information part in the SDP-3' to be deactivated, thereby making the called terminal Stop receiving the color image resource; the called terminal modifies the attribute of the color image session information part of the SDP-3' to deactivate, stops receiving the color image resource, and returns a 200 OK message of the response update message to the session service AS; the session service AS The forward transmission indicates that the called user picks up the 200 OK message to the calling terminal; the calling terminal returns an ACK message indicating the 200 OK message of the called off-hook to the called terminal through the session service AS.
  • UPDATE update

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Description

实现彩像业务的系统及方法
技术领域
本发明涉及实现彩像业务的系统及方法， 尤其涉及在国际互联网协 议多媒体子系统（IMS, Internet Protocol Multimedia Subsystem ) 中实现 彩像业务的系统及方法。 发明背景
当前， 随着电信技术的不断发展， 用户对于电信服务的要求也日益 提高， 许多个性化的电信业务由此涌现。 但是， 现有电信业务中还没有 能够由主叫终端为被叫终端定制作为振铃提示的多媒体资源的业务， 为 叙述方便， 本文中将这种业务简称为彩像业务， 并将主叫终端所定制的 用于作为振铃提示向被叫终端播放的多媒体资源称为彩像资源， 彩像资 源可包括： 图片、 文字、 音频、 视频中的一种或者其任意组合。 发明内容
本发明提供了一种实现彩像业务的系统和方法， 该系统能够实现由 主叫终端为被叫终端定制彩像资源。
本发明还提供了一种应用服务器（AS， Application Server ), 实现对 彩像业务的控制。
本发明还提供了一种用户终端， 作为彩像业务的被叫终端， 能够播 放主叫终端为其定制的彩像资源。
本发明还提供了一种多媒体资源功能实体 （MRP , Multimedia Resource Function ), 实现在彩像业务中向被叫终端播放主叫终端为被叫 终端定制的彩像资源。 一种实现彩像业务的系统包括：
资源存储实体， 其用于存储主叫终端定制的彩像资源；
资源播放实体， 其用于从资源存储实体下载所述彩像资源， 并播放 所述彩像资源；
彩像业务控制实体， 将所述彩像资源的存储地址发送给资源播放实 体。 一种实现彩像业务的方法包括：
将主叫终端定制的彩像资源存储在资源存储实体中；
彩像业务控制实体获取将所述彩像资源的存储地址 , 并将所述彩像 资源的存储地址发送给资源播放实体；
资源播放实体根据收到的地址从资源存储实体下载所述彩像资源 并播放所述彩像资源。 一种应用服务器包括：
彩像资源通知模块， 在接收到主叫终端发来的正式会话信息后， 获 取主叫终端定制的彩像资源的存储地址并发送给资源播放实体。 一种用户终端包括：
彩像资源下载模块， 在接收到彩像业务控制实体发来的主叫终端定 制的彩像资源的存储地址后， 从彩像存储实体下载所述彩像资源； 彩像资源播放模块， 在被叫用户摘机前播放所述彩像资源； 在检测 到被叫用户摘机后， 停止播放所述彩像资源。 一种多媒体资源功能实体包括：
彩像资源下载模块， 在接收到彩像业务控制实体发来的主叫终端定 制的彩像资源的存储地址后， 从彩像存储实体下载所述彩像资源； 彩像资源播放模块， 与被叫终端交互彩像会话信息， 建立与被叫终 端之间的用于播放彩像资源的媒体通道， 并通过所建立的媒体通道向被 叫终端播放彩像资源； 在接收到彩像业务控制实体发来的被叫用户摘机 事件通知后， 停止播放所述彩像资源。 由上述技术方案可以看出， 主叫终端定制的彩像资源存储在具有彩 像资源下载和播放能力的资源播放实体可访问的资源存储实体中， 在主 叫终端呼叫被叫终端时， 彩像业务控制实体将主叫终端定制的彩像资源 的存储地址发送给资源播放实体， 资源播放实体从资源存储实体下载主 叫终端定制的彩像资源， 并在呼叫流程进行到需要向被叫终端播放振铃 提示时， 向被叫终端播放主叫终端定制的彩像资源。 因此， 本发明能够 实现由主叫终端为被叫终端定制彩像资源。 附图筒要说明
图 1是本发明第一种用于实现彩像业务的系统的组网图。
图 2是本发明第二种用于实现彩像业务的系统的组网图。
图 3a是本发明实施例一中的会话业务 AS的结构示意图。
图 3b是本发明实施例一中的被叫终端的结构示意图。
图 3c是本发明实施例一中在 IMS下实现彩像业务的流程图。
图 4a是本发明实施例二中的会话业务 AS的结构示意图。
图 4b是本发明实施例二中的 MRF的结构示意图。
图 4c是本发明实施例二中在 IMS下实现彩像业务的流程图。
图 5是本发明实施例三中在 IMS下实现彩像业务的流程图。 实施本发明的方式
以下结合附图及实施例，对本发明进行进一步详细说明。应当理解， 此处所描述的具体实施例仅仅用于解释本发明， 并不用于限定本发明。 本发明的核心思想是： 预先将主叫终端定制的彩像资源存储于具有 彩像资源下载和播放能力的资源播放实体可访问的资源存储实体中， 在 主叫终端呼叫被叫终端时， 彩像业务控制实体将主叫终端定制的彩像资 源的存储地址发送给资源播放实体， 由资源播放实体从资源存储实体中 下载主叫终端定制的彩像资源并向被叫终端播放。
这里， 提出了两种实现彩像业务的系统。
( 1 )本发明第一种实现彩像业务的系统
图 1是本发明第一种用于实现彩像业务的系统的组网图， 图 1中， 由被叫终端作为资源播放实体， 这种情况下， 要求被叫终端自身具有彩 像资源下载和播放能力。
其中， 主叫终端定制彩像业务后， 其定制的彩像资源存储于被叫终 端可访问的资源存储实体中， 彩像业务控制实体可实时获知主叫终端定 制的彩像资源的存储地址。
彩像业务控制实体用于在主叫终端呼叫被叫终端时， 将主叫终端定 制的彩像资源的存储地址发送给被叫终端。
被叫终端用于从资源存储实体下载主叫终端定制的彩像资源， 并在 呼叫流程进行到需要向被叫终端播放振铃提示时， 播放所下载的彩像资 源。
( 2 )本发明第二种实现彩像业务的系统
图 2是本发明第二种用于实现彩像业务的系统的组网图。 图 2中， 由被叫终端之外的具有彩像资源下载和播放能力的实体作为资源播放 实体， 这种情况下， 对于被叫终端自身是否具有彩像资源下载和播放能 力没有要求。
其中， 主叫终端定制彩像业务后， 其定制的彩像资源存储于资源播 放实体可访问的资源存储实体中， 彩像业务控制实体可实时获知主叫终 端定制的彩像资源的存储地址。
彩像业务控制实体用于在主叫终端呼叫被叫终端时， 将主叫终端定 制的彩像资源的存储地址发送给资源播放实体， 并用于通过转发资源播 放实体与被叫终端之间交互的彩像会话信息， 建立资源播放实体与被叫 终端之间的用于播放彩像资源的媒体通道， 且在获知被叫用户的摘机事 件后， 指示资源播放实体停止向被叫终端播放彩像资源。
资源播放实体用于从资源存储实体下载主叫终端定制的彩像资源， 并在呼叫流程进行到需要向被叫终端播放振铃提示时， 向被叫终端播放 所下载的彩像资源。 不同的网絡中分别由不同的网络实体作为资源播放 实体，例如在 IMS架构中，可由多媒体资源功能实体（MRF, Multimedia Resource Function )作为资源播放实体。
为使本发明的目的、技术方案和优点更加清楚明白， 以下举实施例， 并参照附图， 对本发明进一步详细说明。
以下实施例均以在 IMS架构下实现彩像业务的方法为例，详细说明 本发明是如何实现彩像业务的。
由于在 IMS网络中，业务通常由应用服务器（ AS , Application Server ) 统一提供， 因此， 以下实施例中都以 AS作为彩像业务控制实体。 优选 情况下，以主叫终端第三方注册的会话业务 AS作为彩像业务控制实体， 所述的主叫终端第三方注册的会话业务 AS 是指由第三方， 通常是 S-CSCF, 代替主叫终端注册的会话业务 AS。 以下， 将主叫终端第三方 注册的会话业务 AS简称为会话业务 AS。
实施例一：
本实施例采用本发明第一种实现彩像业务的系统的原理， 也就是 说， 本实施例中的被叫终端具有彩像资源下载和播放能力。 本实施例中，主叫终端定制的彩像资源存储在 IMS网絡中可由统一 资源定位器（URL, Uniform Resource Locator )地址寻址到的资源存储 实体中， 并由会话业务 AS作为彩像业务控制实体， 会话业务 AS可实 时获知主叫终端定制的彩像资源的 URL地址。 具体地， 主叫终端定制 的彩像资源的 URL地址可存储在会话业务 AS中，也可存储在诸如归属 签约用户服务器（ HSS， Home Subscriber Server )之类会话业务 AS能够 访问并获取数据的数据中心。
图 3a示出了会话业务 AS的结构示意图。 如图 3a所示， 在本实施 例中， 会话业务 AS包括：
彩像资源通知模块， 在接收到主叫终端发来的正式会话信息后， 获 取主叫终端定制的彩像资源的存储地址并发送给被叫终端。
可选地， 会话业务 AS还包括： 彩像资源地址存储模块， 用于存储 主叫终端定制的彩像资源的存储地址。
图 3b示出了作为资源播放实体的被叫终端的结构示意图。 如图 3b 所示， 在本实施例中， 作为资源播放实体的被叫终端包括：
彩像资源下载模块， 用于在接收到会话业务 AS发来的主叫终端定 制的彩像资源的存储地址后， 从彩像存储实体下载所述彩像资源；
彩像资源播放模块， 用于在被叫用户摘机前播放所述彩像资源； 在 检测到被叫用户摘机后 , 停止播放所述彩像资源。
图 3c是本发明实施例一在 IMS下实现彩像业务的流程图， 本发明 实施例一在 IMS下实现彩像业务的方法包括：
步骤 301 : 定制了彩像资源的主叫终端发送携带描述正式会话信息 的会话描述协议 （SDP, Session Description Protocol ) 消息体的邀请 ( INVITE )消息给会话业务 AS。 以下， 将描述正式会话信息的 SDP消 息体标识为 SDP-1。 步骤 302:会话业务 AS获得主叫终端定制的彩像资源的 URL地址， 将该 URL地址添加到邀请消息中 , 并发送添加了 URL地址的邀请消息 给被叫终端。 具体地， U L地址可以添加在邀请消息的 Call-Info头域、 诸如 Alert-Info 之类的其他可选域， 或者可扩展标记语言 （XML , extensible Mark Language )脚本中。
会话业务 AS可以从本地存储的彩像资源的 URL地址记录中获得主 叫终端定制的彩像资源的 URL地址； 也可以从保存彩像资源 U L地址 的数据中心， 例如 HSS， 获得主叫终端定制的彩像资源的 URL地址。
步骤 303: 被叫终端根据邀请消息中所添加的 URL地址， 从资源存 储实体下载主叫终端定制的彩像资源。 其中， 可根据 URL地址格式的 不同，分别采用相应的下载方式，例如超文本传输协议（HTTP, Hypertext Transfer Protocol )方式或者文件传输协议 ( FTP, File Transfer Protocol ) 方式。
步驟 304 ~ 307: 被叫终端通过会话业务 AS返回表示会话进展情况 的 183消息给主叫终端，该 183消息中携带被叫终端应答 SDP- 1的 SDP 消息体 SDP- , SDP-1' 描述协商好的正式会话信息； 主叫终端通过会 话业务 AS发送响应 183消息的临时响应确认 ( PRACK )消息给被叫终 端；被叫终端通过会话业务 AS返回响应 PRACK消息的 200 OK消息给 主叫终端。
步骤 308: 被叫终端开始播放主叫终端定制的彩像资源， 并通过会 话业务 AS发送表示被叫终端振铃的 180消息给主叫终端。 这里， 被叫 终端可以先开始播放彩像再发送 180消息， 也可以先发送 180消息再开 始播放彩像， 二者之间没有严格的执行顺序。
步骤 309 ~ 310： 当被叫用户摘机时， 被叫终端通过会话业务 AS发 送表示被叫用户摘机的 200 OK消息给主叫终端； 主叫终端通过会话业 务 AS返回响应步骤 309中的的 200 OK消息的确认 ( ACK ) 消息给被 叫终端， 被叫终端停止播放主叫终端定制的彩像资源。
至此， 彩像业务使用完毕， 主叫终端和被叫终端之间正式会话的媒 体通道建立完成。
实施例二：
本实施例采用本发明第二种实现彩像业务的系统的原理， 也就是 说，由 IMS网络中被叫终端之外具有彩像资源下载和播放能力的实体作 为资源播放实体。 通常， 在 IMS中， MRF作为资源播放实体。 MRF可 通过实时传输协议（RTP )媒体流的方式向被叫终端播放彩像资源。 相 应地，本实施例中的彩像资源应该是适于采用 RTP媒体流方式播放的多 媒体资源。
在本实施例中， 主叫终端定制的彩像资源存储在 IMS 中可由 URL 地址寻址到的资源存储实体中， 并由会话业务 AS作为彩像业务控制实 体， 会话业务 AS可实时获知主叫终端定制的彩像资源的 imL地址。 具 体地， 主叫终端定制的彩像资源的 URL地址可存储在会话业务 AS中， 也可存储在诸如 HSS之类会话业务 AS能够访问的数据中心。
. 图 4a示出了会话业务 AS的结构示意图。 如图 4a所示， 在本实施 例中， 会话业务 AS包括：
彩像资源通知模块， 在接收到主叫终端发来的正式会话信息后， 获 取主叫终端定制的彩像资源的存储地址并发送给 MRP;
彩像业务控制模块， 用于通过转发 MRF与被叫终端之间交互的彩 像会话信息， 以使 MRF与被叫终端之间的用于播放彩像资源的媒体通 道得以建立； 在获知被叫用户的摘机事件后， 指示 MRF停止向被叫终 端播放彩像资源。
可选地， 会话业务 AS还包括： 彩像资源地址存储模块， 用于存储 主叫终端定制的彩像资源的存储地址。
图 4b示出了 M F的结构示意图。 如图 4b所示， 在本实施例中， MRF包括：
彩像资源下载模块， 在接收到会话业务 AS发来的主叫终端定制的 彩像资源的存储地址后， 从彩像存储实体下载所述彩像资源；
彩像资源播放模块， 与被叫终端交互彩像会话信息， 建立与被叫终 端之间的用于播放彩像资源的媒体通道， 并通过所建立的媒体通道向被 叫终端播放彩像资源； 在接收到会话业务 AS发来的被叫用户摘机事件 通知后， 停止向被叫终端播放所述彩像资源。
图 4c是本发明实施例二在 IMS下实现彩像业务的流程图， 本发明 实施例二在 IMS下实现彩像业务的方法包括：
步骤 401 : 定制了彩像资源的主叫终端发送携带描述正式会话信息 的 SDP消息体的邀请消息给会话业务 AS。 以下， 将描述正式会话信息 的 SDP消息体标识为 SDP-1。
步骤 402:会话业务 AS从邀请消息中删除 SDP-1 ,将主叫终端定制 的彩像资源的 URL地址添加到邀请消息中， 发送删除 SDP-1并添加了 URL地址的邀请消息给 MRF。 具体的， U L地址可以添加在邀请消息 的 Call-Info头域、诸如 Alert-Info之类的其他可选域，或者 XML脚本中。
步骤 403: MRF根据邀请消息中所添加的 URL地址， 从资源存储 实体下载主叫终端定制的彩像资源。 其中， 可 居 URL地址格式的不 同， 分别采用相应的下载方式， 例如 HTTP方式或者 FTP方式。
步骤 404: MRF返回 200 OK消息给会话业务 AS， 该 200 OK消息 携带描述 MRF向被叫终端播放彩像资源的会话信息的 SDP消息体， 本 文中将 MRF向被叫终端播放彩像资源的会话简称为彩像会话， 本实施 例中将描述彩像会话信息的 SDP消息体标识为 SDP-2。 步驟 405:会话业务 AS将 SDP-2添加到步骤 401中的邀请消息中， 并发送添加 SDP-2的邀请消息给被叫终端， 明显的， 会话业务 AS发送 给被叫终端的邀请消息是同时携带 SDP-1和 SDP-2的邀请消息。
步骤 406: 被叫终端返回 183消息给会话业务 AS, 该 183消息携带 被叫终端应答 SDP-1的 SDP消息体 SDP-1' 和被叫终端应答 SDP-2的 SDP 消息体 SDP-2' , 具体的， SDP- 描述协商好的正式会话信息， SDP-2' 描述协商好的彩像会话信息。
步骤 407 ~ 409：会话业务 AS从 183消息中删除 SDP-2' ,并将删除 了 SDP-2' 的 183消息返回给主叫终端； 主叫终端通过会话业务 AS发 送响应 183消息的 PRACK消息给铼叫终端；被叫终端通过会话业务 AS 返回响应 PRACK消息的 200 OK消息给主叫终端。
步骤 410: 会话业务 AS返回携带 SDP-2' 的 ACK消息给 MRJF。 至此， MRF和被叫终端之间彩像会话的媒体通道建立完成。
步骤 411 ~ 414: 被叫终端发送 180消息给会话业务 AS; 会话业务 AS发送通知开始播放彩像资源的触发（INFO ) 消息给 MRF; MRF返 回响应 INFO消息的 200 OK消息给会话业务 AS， 并开始通过自身与被 叫终端之间的媒体通道向被叫终端播放主叫终端定制的彩像资源； 会话 业务 AS将 180消息前传给主叫终端。
步骤 415 ~ 417： 当被叫用户摘机时， 被叫终端发送表示被叫用户摘 机的 200 OK消息给会话业务 AS; 会话业务 AS发送通知结束播放彩像 资源的结束（BYE ) 消息给 MRF; MRF停止通过自身与被叫终端之间 的媒体通道向被叫终端播放主叫终端定制的彩像资源， 返回响应 BYE 消息的 200 OK消息给会话业务 AS。
至此， 彩像业务使用完毕。
步骤 418 ~ 419: 会话业务 AS前传表示被叫用户摘机的 200 OK消 息给主叫终端； 主叫终端通过会话业务 AS返回响应步骤 418中的 200 OK消息的 ACK消息给被叫终端。
此时， 主叫终端和被叫终端之间正式会话的媒体通道建立完成。 应注意， 这里提供的彩像业务是一种主叫定制业务， 主叫用户可以 定制彩像业务， 也可以取消该业务。 如果定制了， 才会在呼叫中使用彩 像， 否则没有彩像业务。 被叫终端可以根据需要选择接收或者不接收主 叫终端定制的彩像资源， 例如， 被叫用户可以通过定制彩像显示业务确 定是否显示主叫终端定制的彩像资源， 若定制了彩像显示业务则显示彩 像， 若未定制彩像显示业务则不显示彩像； 或者， 被叫用户也可以通过 定制彩像显示限制业务确定是否显示主叫终端定制的彩像资源， 若用户 定制了彩像显示限制业务则不显示彩像， 若未定制彩像显示限制业务则 显示彩像。
实施例三：
本实施例也采用本发明第二种实现彩像业务的系统的原理， 其与实 施例二的主要区别在于： 实施例二采用应用服务器模型的早期媒体方 案， 即使用两个 SDP消息体， 其中一个 SDP消息体用于描述正式会话 信息， 另一个 SDP消息体用于描述彩像会话信息； 本实施例采用网关模 型的早期媒体方案，即仅使用一个 SDP消息体同时描述正式会话信息和 彩像会话信息， 该 SDP消息体的一部分用于描述正式会话信息， 另一部 分用于描述彩像会话信息。
本实施例的会话业务 AS和 MRF的结构分别与图 4a的会话业务 AS 和图 4b的 MRF的结构相同， 在此不予赘述。
图 5是本发明实施例三在 IMS下实现彩像业务的流程图，本发明实 施例三在 IMS下实现彩像业务的方法包括：
步骤 501 : 定制了彩像资源的主叫终端发送携带描述正式会话信息 的 SDP消息体的邀请消息给会话业务 AS。 以下， 将描述正式会话信息 的 SDP消息体标识为 SDP-1。
步骤 502:会话业务 AS从邀请消息中删除 SDP-1 ,将主叫终端定制 的彩像资源的 URL地址添加到邀请消息中， 发送删除 SDP-1并添加了 URL地址的邀请消息给 MRF。 具体的， URL地址可以添加在邀请消息 的 Call-Info头域、诸如 Alert-Info之类的其他可选域，或者 ML脚本中。
步骤 503: MRF根据邀请消息中所添加的 URL地址， 从资源存储 实体下载主叫终端定制的彩像资源。 其中， 可根据 U L地址格式的不 同， 分别采用相应的下载方式， 例如 HTTP方式或者 FTP方式。
步骤 504: MR 返回 200 OK消息给会话业务 AS , 该 200 OK消息 携带描述彩像会话信息的 SDP消息体，本实施例中将描述彩像会话信息 的 SDP消息体标识为 SDP-2。
步骤 505: 会话业务 AS构造同时描述正式会话信息和彩像会话信 息的 SDP消息体， 以下将新构造的 SDP消息体简称为 SDP-3 , 会话业 务 AS从步骤 501中的邀请消息中删除 SDP-1 , 将 SDP-3添加到邀请消 息中， 发送携带删除 SDP - 1并添加 SDP-3的邀请消息给被叫终端。
步骤 506: 被叫终端返回 183消息给会话业务 AS， 该 183消息携带 被叫终端应答 SDP-3的 SDP消息体 SDP-3' , 也就是说， SDP-3' 中同 时描述了协商好的正式会话信息和协商好的彩像会话信息。
步驟 507:会话业务 AS从 SDP-3' 中删除描述协商好的彩像会话信 息的部分， 以下， 将经过上述删除处理的 SDP-3' 标识为 SDP-4' , 会话 业务 AS发送携带 SDP-4' 的 183消息给主叫终端， 明显的， SDP-4' 仅 描述了协商好的正式会话信息。
步骤 508 ~ 509; 主叫终端通过会话业务 AS发送响应步驟 507中的 183消息的 PRACK消息给被叫终端；被叫终端通过会话业务 AS返回响 应 PRACK消息的 200 OK消息给主叫终端。
步骤 510:会话业务 AS从 SDP-3' 中删除描述协商好的正式会话信 息的部分， 以下， 将经过上述删除处理的 SDP-3' 标识为 SDP-5' , 会话 业务 AS发送携带 SDP-5' 的 ACK消息给 MRF, 明显的， SDP-5' 仅描 述了协商好的彩像会话信息。
至此， MRF和被叫终端之间彩像会话的媒体通道建立完成。
步驟 511 ~ 514： 被叫终端发送 180消息给会话业务 AS; 会话业务 AS发送通知开始播放彩像资源的 INFO消息给 MRF; MRF返回响应 I PO消息的 200 OK消息给会话业务 AS， 并通过自身与被叫终端之间 的媒体通道向被叫终端播放主叫终端定制的彩像资源； 会话业务 AS将 180消息前传给主叫终端。
步骤 515 - 517: 当被叫用户摘机时，被叫终端发送表示被叫用户摘 机的 200 OK消息给会话业务 AS; 会话业务 AS发送通知结束播放彩像 资源的 ΒΥΈ消息给 MRF; MRF停止通过自身与被叫终端之间的媒体通 道向被叫终端播放主叫终端定制的彩像资源， 并返回响应 BYE 消息的 200 OK消息给会话业务 AS。
至此， 彩像业务使用完毕。
步骤 518 ~ 521： 会话业务 AS发送更新 ( UPDATE ) 消息给被叫终 端， 该消息用于通知被叫终端将 SDP-3' 中彩像会话信息部分的属性修 改为去激活， 从而使被叫终端停止接收彩像资源； 被叫终端将 SDP-3' 中彩像会话信息部分的属性修改为去激活， 停止接收彩像资源， 并返回 响应更新消息的 200 OK消息给会话业务 AS; 会话业务 AS前传表示被 叫用户摘机的 200 OK消息给主叫终端； 主叫终端通过会话业务 AS返 回响应表示被叫摘机的 200 OK消息的 ACK消息给被叫终端。
此时， 主叫终端和被叫终端之间正式会话的媒体通道建立完成。 以上所述仅为本发明的较佳实施例而已， 并不用以限制本发明， 凡 在本发明的精神和原则之内所作的任何修改、 等同替换和改进等， 均应 包含在本发明的保护范围之内。

Claims

权利要求书
1、 一种实现彩像业务的系统， 其特征在于， 包括：
资源存储实体， 存储主叫终端定制的彩像资源；
资源播放实体， 从资源存储实体下载所述彩像资源， 并播放所述彩 像资源；
彩像业务控制实体， 获取主叫终端定制的彩像资源的存储地址， 并 将所述彩像资源的存储地址发送给资源播放实体。
2、 如权利要求 1 所述的系统， 其特征在于， 所述彩像业务控制实 体是主叫终端第三方注册的会话业务应用服务器 AS。
3、 如权利要求 2所述的系统， 其特征在于， 所述资源存储实体位 于所述会话业务 AS可以访问的归属签约用户服务器 HSS; 或位于所述 会话业务 AS上。
4、 如权利要求 1或 2所述的方法， 其特征在于， 所述资源播放实 体是被叫终端。
5、 如权利要求 1或 2所述的方法， 其特征在于， 所述资源播放实 体是多媒体资源功能实体 MRF, 所述 MRF向被叫终端播放所述彩像资 源。
6、 一种实现彩像业务的方法， 其特征在于， 包括：
将主叫终端定制的彩像资源存储在资源存储实体中；
彩像业务控制实体获取主叫终端定制的彩像资源的存储地址， 并将 所述彩像资源的存储地址发送给资源播放实体；
资源播放实体根据收到的地址从资源存储实体下载所述彩像资源 并播放所述彩像资源。
7、 如权利要求 6 所述的方法， 其特征在于， 所述彩像业务控制实 体是主叫终端第三方注册的会话业务 AS。
8、 如权利要求 6所述的方法， 其特征在于， 所述下载方式是超文 本传输协议 HTTP方式、 或文件传输协议 FTP方式；
所述地址是统一'资源定位器 URL地址。
9、 根据权利要求 8 所述的方法， 其特征在于， 所述彩像业务控制 实体获取彩像资源的存储地址包括：
彩像业务控制实体从自身保存的主叫终端定制的彩像资源的 URL 地址或从其可以访问的归属签约用户服务器 HSS 下载主叫终端定制的 彩像资源的 URL地址。
10、 根据权利要求 8所述的方法， 其特征在于， 所述彩像业务控制 实体将彩像资源的存储地址发送给资源播放实体包括： 彩像业务控制实 体将所述彩像资源的 URL地址携带于邀请消息中发送给资源播放实体。
11、 如权利要求 10所述的方法， 其特征在于， 所述 U L地址具体 携带于所述邀请消息的 Call-Info头域、 或 Alert-Info域、 或可扩展标记 语言 XML脚本中。
12、 如权利要求 6所述的方法， 其特征在于， 所述资源播放实体是 被叫终端。
13、 如权利要求 6所述的方法， 其特征在于， 所述资源播放实体是 多媒体资源功能实体 MRF;
所述资源播放实体播放彩像资源包括：
建立 MRF与被叫终端之间用于播放彩像资源的媒体通道；
MRF通过建立的媒体通道向被叫终端播放所述彩像资源。
14、 如权利要求 13所述的方法， 其特征在于， 所述建立 MRF与被 叫终端之间用于播放彩像资源的媒体通道包括：
MRF发送彩像会话信息至被叫终端； 被叫终端向 MRF返回协商好的彩像会话信息。
15、 如权利要求 14所述的方法， 其特征在于， 所述彩像业务控制 实体是主叫终端第三方注册的会话业务 AS;
所述 MRF发送彩像会话信息至被叫终端包括：
MRF通过会话业务 AS将彩像会话信息发送给被叫终端；
所述被叫终端向 MR 返回协商好的彩像会话信息包括：
被叫终端通过会话业务 AS向 MRF返回协商好的彩像会话信息。
16、 如权利要求 15所述的方法， 其特征在于， 所述 MRF通过会话 业务 AS将彩像会话信息发送至被叫终端包括：
MRF将描述彩像会话信息的第一会话描述协议 SDP消息体发送至 会话业务 AS;
会话业务 AS将第一 SDP消息体和主叫终端发来的描述正式会话信 息的第二 SDP消息体发送至被叫终端；
所述被叫终端通过会话业务 AS向 MR 返回协商好的彩像会话信息 包括：
. 被叫终端向会话业务 AS返回描述协商好的彩像会话信息的第一应 答 SDP消息体和描述协商好的正式会话信息的第二应答 SDP消息体； 会话业务 AS向 MRF返回第一应答 SDP消息体， 向主叫终端发送 第二应答 SDP消息体。
17、 如权利要求 16所述的方法， 其特征在于， 所述会话业务 AS将 第一 SDP消息体和第二 SDP消息体携带在邀请消息中发送至被叫终端。
18、 如权利要求 15所述的方法， 其特征在于， 所述 MR 通过会话 业务 AS将彩像会话信息发送至被叫终端包括：
MRF将描述彩像会话信息的第一 SDP消息体发送至会话业务 AS; 会话业务 AS从主叫终端发来的第二 SDP消息体中提取出正式会话 信息， 从 MRF发来的第一 SDP消息体中提取出彩像会话信息， 生成包 含彩像会话信息和正式会话信息的第三 SDP消息体， 并将第三 SDP消 息体发送至被叫终端；
被叫终端向会话业务 AS返回包含描述协商好的正式会话信息和协 商好的彩像会话信息的第三应答 SDP消息体；
会话业务 AS向 MRF发送包含描述协商好的彩像会话信息的第一应 答 SDP消息体，向主叫终端发送包含描述协商好的正式会话信息的第二 应答 SDP消息体。
19、 如权利要求 18所述的方法， 其特征在于， 所述会话业务 AS将 第三 SDP消息体携带在邀请消息中发送至被叫终端。
20、 如权利要求 6所述的方法， 其特征在于， 所述资源播放实体在 被叫终端振铃时向被叫终端播放彩像资源；
该方法进一步包括：
彩像业务控制实体在获知被叫用户摘机的事件后， 指示资源播放实 体停止向被叫终端播放彩像资源。
21、 如权利要求 20 所述的方法， 其特征在于， 所述彩像业务控制 实体是主叫终端第三方注册的会话业务 AS;
所述彩像业务控制实体获知的被叫用户摘机事件是被叫终端通过 表示被叫用户摘机的 200 OK消息发送给会话业务 AS的；
所述彩像业务控制实体指示资源播放实体停止向被叫终端播放彩 像资源包括：
会话业务 AS发送通知结束播放彩像资源的结束 BYE消息至 MRP; MRF接收到 ΒΥΈ消息后， 停止向被叫终端播放主叫终端定制的彩 像资源。
22、 如权利要求 20所述的方法， 其特征在于， 进一步包括： 彩像业务控制实体通知被叫终端停止接收彩像资源； 彩像业务控制实体将获知的被叫用户摘机事件通知给主叫终端 , 主 叫终端和被叫终端开始通话。
23、 一种应用服务器 AS, 在彩像业务中作为主叫终端第三方注册 的会话业务 AS， 其特征在于， 包括：
彩像资源通知模块， 在接收到主叫终端发来的正式会话信息后， 获 取主叫终端定制的彩像资源的存储地址并发送给资源播放实体。
24、 如权利要求 23所述的 AS, 其特征在于， 还包括：
彩像业务控制模块， 通过转发资源播放实体与被叫终端之间交互的 彩像会话信息， 以使资源播放实体与被叫终端之间的用于播放彩像资源 的媒体通道得以建立； 在获知被叫用户的摘机事件后， 指示资源播放实 体停止向被叫终端播放彩像资源。
25、 如权利要求 23所述的 AS, 其特征在于， 还包括：
彩像资源地址存储模块， 存储主叫终端定制的彩像资源的存储地 址。
26、 一种用户终端， 在彩像业务中作为被叫终端， 其特征在于， 包 括：
彩像资源下载模块， 在接收到彩像业务控制实体发来的主叫终端定 制的彩像资源的存储地址后， 从彩像存储实体获取所述彩像资源； 彩像资源播放模块， 在被叫用户摘机前播放所述彩像资源； 在检测 到被叫用户摘机后， 停止播放所述彩像资源。
27、 一种多媒体资源功能实体 MRP, 其特征在于， 包括： 彩像资源下载模块， 在接收到彩像业务控制实体发来的主叫终端定 制的彩像资源的存储地址后， 从彩像存储实体下载所述彩像资源； 彩像资源播放模块， 与被叫终端交互彩像会话信息， 建立与被叫终 端之间的用于播放彩像资源的媒体通道， 并通过所建立的媒体通道向被 叫终端播放彩像资源； 在接收到彩像业务控制实体发来的被叫用户摘机 事件通知后， 停止播放所述彩像资源。
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CN101026653B (zh) 2011-08-24
CN101026653A (zh) 2007-08-29
US9723137B2 (en) 2017-08-01
DE602007002932D1 (de) 2009-12-10
CN101156426A (zh) 2008-04-02
EP1826985A1 (en) 2007-08-29
ATE447286T1 (de) 2009-11-15
US8855272B2 (en) 2014-10-07
US20150026354A1 (en) 2015-01-22
CN101156426B (zh) 2011-02-16
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US20150024723A1 (en) 2015-01-22
US20070201635A1 (en) 2007-08-30

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