WO2011032390A1 - 一种融合ip消息的发送方法及系统 - Google Patents

一种融合ip消息的发送方法及系统 Download PDF

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Publication number
WO2011032390A1
WO2011032390A1 PCT/CN2010/072879 CN2010072879W WO2011032390A1 WO 2011032390 A1 WO2011032390 A1 WO 2011032390A1 CN 2010072879 W CN2010072879 W CN 2010072879W WO 2011032390 A1 WO2011032390 A1 WO 2011032390A1
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WIPO (PCT)
Prior art keywords
message
cpm
function entity
msrp
entity
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PCT/CN2010/072879
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English (en)
French (fr)
Inventor
卢艳
谢曼
Original Assignee
中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP10816594.5A priority Critical patent/EP2445302B1/en
Priority to US13/383,915 priority patent/US8719424B2/en
Publication of WO2011032390A1 publication Critical patent/WO2011032390A1/zh

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Classifications

    • 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
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/56—Unified messaging, e.g. interactions between e-mail, instant messaging or converged IP messaging [CPM]
    • 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
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/143—Termination or inactivation of sessions, e.g. event-controlled end of session
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/08—Protocols for interworking; Protocol conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/58—Message adaptation for wireless communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]

Definitions

  • the present invention relates to the field of mobile communications technologies, and in particular, to a method and system for transmitting a large message mode fused IP message. Background technique
  • CPM Converged IP Messaging
  • OMA Open Mobile Architecture
  • CPM CPM message based on pager-mode
  • CPM message based on session-mode CPM large message mode CPM Message
  • session-based other CPM session service Currently, the OMA Alliance is developing the CPM V1.0 specification.
  • the business forms of CPM include: CPM message based on pager-mode, CPM message based on session-mode CPM (large message mode CPM Message), session-based other CPM session service .
  • CPM message based on pager-mode CPM message based on session-mode CPM (large message mode CPM Message), session-based other CPM session service .
  • the CPM client of the sending and receiving parties and the CPM system also known as the CPM Enabler, use the Session Initiation Protocol (SIP) message to deliver the pager-mode message.
  • SIP Session Initiation Protocol
  • the sender terminal needs to send a large message mode CPM, if the size of the message exceeds the limit (for example, greater than 1300 bytes), it cannot be carried by SIP MESSAGE.
  • the CPM system defines the following main logical functional entities: CPM Client (CPM) Client ), Participating Function (PF), Controlling Function (CF), Message Storage Server, Content Storage Server, Interworking Selection Function , Interworking Function, etc.
  • CPM Client CPM Client
  • PF Participating Function
  • CF Controlling Function
  • Message Storage Server Content Storage Server
  • Interworking Selection Function Interworking Function, etc.
  • the CPM system uses the CPM address to uniquely identify a user.
  • the CPM address belongs to different CPM participating functional entities according to the affiliation relationship, which is also called the network environment where the participating functional entity is located (including the participating functional entity).
  • the SIP/IP core network is the home domain of a user to which it belongs. Based on this basic idea, several main services of the CPM mentioned above are based on the SIP protocol for signaling plane control, so The signaling plane is subject to the participating functional entities.
  • any CPM signaling sent from a CPM client after entering the CPM network environment, is first routed by the SIP/IP core network according to the address of its sender to the participating functional entity to which the sender belongs, that is, the source participating functional entity. And finally, according to the destination address of the destination end, it is routed to the participating function entity to which the receiver belongs, that is, the destination end participates in the functional entity. That is, in the CPM system environment, the signaling originates from the source participating in the functional entity, and the calling end participates in the entity at the destination end.
  • a CPM user initiates a call to a group (such as sending a large message mode CPM message to a group, or initiating a conference call to a group)
  • the signaling plane reaches the source participating functional entity, the SIP/IP core network
  • the signaling is routed to the control function entity according to the group address, and then the group-related service control is performed by the control function entity.
  • the SIP/IP core network is finally routed to the network selection function entity, and the final interworking function entity is selected by the network selection function entity.
  • the technical problem to be solved by the present invention is to provide a method and system for transmitting a large message mode CPM message, which is used to solve the problem that the CPM client in the prior art cannot be used to a non-CPM system (non-CPM system, such as an SMS system or an MMS system). , Email system, etc.)
  • non-CPM system such as an SMS system or an MMS system
  • Email system etc.
  • the CPM client sends the CPM message to the interworking function entity through each segment of the MSRP link, and the interworking function entity transmits the received CPM message to the non-CPM system after being converted by the protocol.
  • the process of creating the MSRP link includes: the creator of the MSRP link learns the MSRP connection parameter of the peer end through the media negotiation process SDP, and the creator creates an MSRP link according to the MSRP connection parameter.
  • the SDP media negotiation process includes:
  • the CPM client sends a first session invitation message, where the first session invitation message is received by the source participant function entity; the source participant function entity sends a second session invite message, and the second session invite message is selected by the network.
  • the interworking function entity sends a third success response message, where the third success response message is received by the network selection function entity; the network selection function entity sends a second success response message, The second success response message is received by the source participating functional entity; the source participating functional entity sends a first success response message, and the first success response message is received by the sender CPM client.
  • the method further includes:
  • the CPM client After receiving the first success response message, the CPM client sends a first acknowledgment message, where the first acknowledgment message is received by the source participating functional entity; the source participating functional entity receives the first acknowledgment message and sends the second acknowledgment message. a confirmation message, the second confirmation message is received by the network selection function entity; the network selection function entity sends a third confirmation message after receiving the second confirmation message, and the third confirmation message is received by the interworking function entity; or ,
  • the source participating functional entity After receiving the second success response message, the source participating functional entity sends a second acknowledgement message, where the second acknowledgement message is received by the network selection function entity; and the sender CPM client receives the first success response message.
  • the first acknowledgement message is sent, and the first acknowledgement message is received by the source participating functional entity.
  • the first session invite message carries the MSRP connection parameter of the CPM client; the source participant function entity creates a first MSRP link between the source participant function entity and the sender CPM client according to the MSRP connection parameter; or
  • the first success response message carries the MSRP connection parameter of the source participating functional entity; the sender CPM client creates a CPM client and the source participating functional entity according to the MSRP connection parameter of the source participating functional entity.
  • the first MSRP link carries the MSRP connection parameter of the source participating functional entity; the sender CPM client creates a CPM client and the source participating functional entity according to the MSRP connection parameter of the source participating functional entity.
  • the first MSRP link The first MSRP link.
  • the second session invitation message and the third session invitation message carry the MSRP connection parameters of the source participating functional entity; the interworking function entity creates an interworking function entity and a source end participating functional entity according to the MSRP connection parameter. a second MSRP link; or
  • the third success response message and the second success response message carry the MSRP connection parameter of the interworking function entity; the source participating functional entity creates a source end participating functional entity and an interworking function entity according to the MSRP connection parameter.
  • the second MSRP link between.
  • the creator of the first MSRP link is a CPM client, the CPM client creates the first MSRP link after receiving the first success response message;
  • the source participating functional entity creates the first MSRP link after receiving the first acknowledgement message.
  • the source participating functional entity When the creator of the second MSRP link is the source participating functional entity, the source participating functional entity creates the second MSRP link after receiving the second success response message, or receives the first acknowledgement message. And then creating the second MSRP link, or creating the second MSRP link when receiving an MSRP media transmission request;
  • the interworking function entity creates the second MSRP link after receiving the third acknowledgment message.
  • the process of the interworking function entity transmitting the received CPM message to the non-CPM system after being converted by the protocol includes: after receiving the CPM message, the interworking function entity converts the CPM message into a non-CPM system receiver agreement The content of the format is sent to the non-CPM system;
  • the method further includes: the interworking function entity transmitting the MSRP response message after completely receiving the content of the large message mode CPM message, or the interworking function entity receiving the receiving confirmation message of the non-CPM system, and then sending the MSRP response message.
  • the method further includes:
  • the CPM client sends a session end message, and the session end message is received by the source participant function entity; the source participant function entity sends a session end message after receiving the session end message, and the session end message is received by the network selection function entity; After receiving the session end message, the network selection function entity sends a session end message, and the session end message is received by the interworking function entity; or
  • the session end message is sent, and the session end message is routed to the source via the network selection function entity.
  • the end participating functional entity after receiving the session end message, the source participating functional entity sends a session end message, which is received by the CPM client.
  • the network selection function entity is a session initiation protocol SIP gateway
  • the signaling plane of the interworking function entity is a SIP user proxy server.
  • a CPM transmission system for a CPM client to transmit CPM messages to a non-CPM system including: a CPM client, a source participating functional entity, a network selection functional entity, an interworking function entity, and a non-CPM system, wherein
  • a CPM client a session invitation message for sending a CPM message to a large message receiver, where the session invitation message carries a session description protocol SDP session description parameter for negotiation, and is also used to establish and the source end After participating in the MSRP of the functional entity, sending a CPM message to the source participating functional entity;
  • the source participation function entity is configured to receive the session invitation information sent by the CPM client, establish an MSRP link with the CPM client, and send the session invitation message to the network selection function entity; An MSRP link between the interworking function entities; and receiving a large message mode CPM message content sent by the CPM client, and sending a large message mode CPM message content to the interworking function entity;
  • a network selection function entity configured to receive a session invitation message sent by the source participating functional entity, select an interworking function entity according to the condition carried in the received session invitation message, and send the session invitation information to the interworking function entity;
  • An interworking function entity configured to receive the session invitation message sent by the network selection function entity, establish an MSRP link with the source participating functional entity, and receive the function from the source participating functional entity
  • the large message mode CPM message is converted to a protocol format that conforms to the non-CPM system and then sent to the non-CPM system.
  • the present invention establishes a media transmission link between a sender CPM client and an Inter-working Function (IFF) through a session invitation message of a large message mode CPM message. Transmitting the content of the large message mode CPM message to the IWF through the established media transmission link, and sending the large message mode CPM message to the non-CPM system by the IWF, and the content of the large message mode CPM message is converted by the non-CPM system. After being sent to the receiver client, the problem that the large message mode CPM message cannot be transmitted to the non-CPM system user in the current technology can be solved, and the user experience is improved.
  • DRAWINGS Inter-working Function
  • FIG. 1 is a flow chart of a method for transmitting a large message mode CPM message according to an embodiment of the present invention
  • FIG. 2 is a block diagram of a large message mode CPM message transmission system according to an embodiment of the present invention.
  • the invention solves the problem that the CPM user sends a large message mode CPM message to a non-CPM user, and the functional entities involved are: CPM client (CPM sender and CPM receiver), participating functional entity (only involving source participating functional entity) ) and network selection functional entities and interworking functional entities as well as non-CPM systems.
  • the large message mode CPM message occupies a large space, it cannot be directly used to carry the SIP message.
  • the large message mode CPM message transmission path is divided into a signaling path and a media path, that is, a letter.
  • the data is transmitted along the signaling path and the media is transmitted along the media path. Therefore, in the embodiment of the present invention, when a large message mode CPM message is transmitted to a non-CPM system receiver, the SDP (Session Description Protocol) negotiation is performed by using a session invitation message (INVITE) of the large message mode CPM. And establishing a media transmission link between the sender CPM client and the IWF.
  • SDP Session Description Protocol
  • the sender CPM client sends the content of the large message mode CPM message to the IWF by using the Message Session Relay Protocol (MSRP), and the content of the large message mode CPM message is sent by the IWF. Converted to a non-CPM system format and sent to a non-CPM system, sent by a non-CPM system to the recipient client.
  • the large message mode CPM message in the embodiment of the present invention is a CPM whose size exceeds a preset limit (for example, 1300 bytes) in the CPM specification formulated by the OMA, and the large message mode message cannot be directly carried by using a SIP message. .
  • a method for transmitting a large message mode CPM message is first provided, which is used to transmit a large message mode CPM message to a non-CPM system receiver, specifically, the CPM client is in a non-CPM system receiver.
  • an MSRP link is created between the sender CPM client and the source participating functional entity, and the source participating functional entity and the interworking function entity.
  • the SDP negotiation process learns the MSRP connection parameters of the peer end, and creates the MSRP link according to the MSRP connection parameters.
  • the sender CPM client sends the message content of the large message mode CPM to the interworking function entity through the MSRP links in sequence.
  • the interworking function entity transmits the message content of the received large message mode CPM to the non-CPM system after being converted by the protocol.
  • connection parameters include the following:
  • the connection parameters are IP address and port number;
  • the connection parameters are URI parameters:
  • the connection parameters are IP address, port number, and URI parameters.
  • the sender CPM client is the CPM client A
  • the source participating functional entity of the sender is the participating function entity A (Participating Function A)
  • the network selection function entity is the Inter-working Selection Function A.
  • ISF the Inter-working Selection Function
  • the interworking function entity is Inter-working Function A
  • the cylinder is called IWF
  • the selected non-CPM system is non-CPM System B (selected by ISF, such as SMS system or MMS system or Email system).
  • FIG. 1 is a flowchart of a method for transmitting a large message mode CPM message according to an embodiment of the present invention, including the following steps: Step 101: The CPM client A sends a first SIP INVITE (Session Invite message) of the large message mode CPM message, where the session invitation message carries an SDP message for session negotiation, where the SDP message carries the media to be transmitted. The size of the data and the content type (media type M.
  • the first SIP INVITE is routed to the participating functional entity A via the SIP/IP core network; the SDP message in the first SIP INVITE can carry the CPM client MS's MSRP connection parameters;
  • Step 102 The participating functional entity A receives the first SIP INVITE, and processes the received message as a Back to Back User Agent (B2BUA): according to the receiver address, it needs to be sent to the non-CPM system, and is generated. And sending a second SIP INVITE, where the SDP packet for the session negotiation is carried, and the size and content type information in the first SIP INVITE is retained in the packet.
  • B2BUA Back to Back User Agent
  • the second SIP INVITE routes the network selection function entity via the SIP/IP core network.
  • the SDP packet in the second SIP INVITE may carry the MSRP connection parameter of the participating functional entity A;
  • Step 103 The network selection function entity A receives the second SIP INVITE, and selects the interworking function entity according to the parameter information such as content type and size in the message, and assumes that the selected interworking function entity is the interworking function entity A, and then sends the third SIP INVITE.
  • the third SIP INVITE is routed to the interworking function entity A via the SIP/IP core network.
  • the network selection function entity can act as a SIP gateway to forward the received SIP message, and the second SIP INVITE message and the third SIP INVITE message are essentially the same message.
  • Step 104 The interworking function entity A receives the third SIP INVITE, generates and sends a third 200 OK (Success Response Message), and the response message is routed to the network selection function entity A via the SIP/IP core network, where the message is carried The SDP message is acknowledged by the session negotiation.
  • a third 200 OK Successess Response Message
  • the SDP packet in the third 200 OK may carry the MSRP connection parameter of the interworking function entity A.
  • the signaling plane of the interworking function entity can be regarded as a SIP UAS (User Agent Server: User Agent Server).
  • Step 105 The network selection function entity A receives the third 200 OK, and sends a second 200 OK, and the message is routed to the participating function entity A via the SIP/IP core network, and the SDP 4 in the third 200 OK is retained in the message. Text.
  • the network selection function entity can act as a SIP gateway to forward the received SIP message, and the third 200 OK message and the second 200 OK message are essentially the same message.
  • Step 106 The participating function entity A receives the second 200 OK, and processes the received message as the B2BUA: generates and sends the first 200 OK.
  • the first 200 is routed to the CPM client via the SIP/IP core network, and carries the SDP packet for session negotiation.
  • the SDP 4 in the first 200 ⁇ can carry the MSRP connection parameters of the participating functional entity.
  • Step 107 The CPM client A receives the first 200 OK and sends a first SIP ACK (acknowledgement message), and the first SIP ACK is routed to the participating functional entity A via the SIP/IP core network.
  • the CPM client A can create a first MSRP link between the CPM client A and the participating functional entity A according to the MSRP connection parameters of the participating functional entity A.
  • Step 108 The participating functional entity A sends a second SIP ACK message after receiving the first SIP ACK, and the second SIP ACK message is routed to the network selection function entity A via the SIP/IP core network.
  • the participating functional entity A can create a second MSRP link between the participating functional entity A and the interworking functional entity according to the MSRP connection parameter of the interworking functional entity.
  • Step 109 After receiving the second SIP ACK message, the network selection function entity A sends a third SIP ACK message, and the third SIP ACK message is routed to the interworking function entity A via the SIP/IP core network.
  • the network selection function entity can be used as a SIP gateway to forward the received SIP message.
  • the third ACK message and the second ACK message are essentially the same message.
  • This step may be performed after the first MSRP link is established.
  • Step 111 The participating function entity A relays the media data in the received first MSRP SEND through the second MSRP link, that is, sends a second MSRP SEND, which is between the participating functional entity A and the interworking function.
  • MSRP SEND The participating function entity A relays the media data in the received first MSRP SEND through the second MSRP link, that is, sends a second MSRP SEND, which is between the participating functional entity A and the interworking function.
  • Step 112 After receiving the content of the large message mode CPM message sent by the function entity A, the interworking function entity A performs protocol conversion on the received content, converts the content into a non-CPM system B protocol format, and sends the content to the non-CPM system B protocol format.
  • CPM system B After receiving the content of the large message mode CPM message sent by the function entity A, the interworking function entity A performs protocol conversion on the received content, converts the content into a non-CPM system B protocol format, and sends the content to the non-CPM system B protocol format.
  • Step 113 The non-CPM system B receives the protocol-converted content sent by the interworking function entity A, and returns a receiving confirmation message to the interworking function entity A;
  • Step 114 The interworking function entity A receives the acknowledgment message from the non-CPM system B, and generates and sends an MSRP response message after performing protocol conversion on the acknowledgment message, and the message is transmitted to the participating functional entity A via the second MSRP link;
  • Step 115 The participating function entity A sends a receiving confirmation message to the CPM client A through the first MSRP link.
  • the CPM client A receives the session end message SIP BYE indicating the end of the big message mode CPM session after receiving the last MSRP confirmation message, and the session end message is sent through the SIP/IP core.
  • the network is routed to the participating function entity A, and the participating function entity A sends the session end message after receiving the session end message, and the session end message is routed to the network selection function entity A via the SIP/IP core network, and the network selection function entity A sends the session.
  • End message the end message is routed to the interworking function entity A; or, the interworking function entity A receives the reception confirmation message of the non-CPM system, and then sends a session end message, the session end
  • the bundle message is routed to the participating function entity A via the SIP/IP core network and the network selection function entity, and the participating function entity A sends the session end message after receiving the session end message, and the session end message is routed to the CPM client via the SIP/IP core network. End A.
  • the participating function entity A sends the second SIP ACK after receiving the first SIP ACK
  • the participating function entity A may also send the second SIP after receiving the second 200 OK.
  • ACK without sending a second SIP ACK after waiting for the first SIP ACK; in this embodiment, the SIP ACK message sent by each network function entity (such as participating functional entity A) may be newly created by the network function entity, or may be The received SIP ACK message is directly forwarded, and the present invention does not limit this.
  • the participating functional entity A may also be configured to receive a second success response message 200 OK to create a second MSRP link;
  • the creator of the first MSRP link may also be the participating functional entity A.
  • the MSRP connection parameter of the CPM client A needs to be carried in the first SIP INVITE, and the participating functional entity A may receive the first After the SIP ACK message, the first MSRP link is created according to the MSRP connection parameter of the CPM client A.
  • the creator of the second MSRP link may also be the interworking function entity A.
  • the second SIP INVITE and the third SIP INVITE need to carry the MSRP connection parameters of the source participating functional entity, and the interworking function entity A can receive the first After the three SIP ACK messages, the second MSRP link is created according to the MSRP connection parameters of the source participating functional entity.
  • the creator of the second MSRP link is the participating functional entity A, it may also be created after the participating functional entity A receives the first MSRP SEND.
  • the first MSRP link and the second MSRP link may be created by the creator to initiate a link request according to the MSRP connection parameter of the peer, or select a host, port, and/or MSRP URI (Universal Resource Identifier). Identifier)
  • MSRP URI Universal Resource Identifier
  • the existing MSRP link that matches the existing MSRP link.
  • the interworking gateway entity A may immediately return an MSRP response message to the source end along the media transmission path, or wait for an acknowledgment message from the non-CPM system as described in this embodiment. Then return the MSRP response message to the source.
  • the neighboring functional entities in the CPM system are interconnected through the SIP/IP core network, that is, the signaling between the sender CPM client, the source participating functional entity, the network selecting functional entity, and the interworking functional entity.
  • the SIP messages (such as the session invitation message INVITE and the success response message 200OK) are routed to the neighboring entity through the SIP/IP core network.
  • the signaling messages of the functional entities can all pass through the SIP/IP core.
  • the network is routed to the neighboring entity, and may also be routed through a SIP/IP core network between a part of the functional entities (such as other functional entities except the ISF and IWF, which are related to the non-CPM system interworking processing).
  • the signaling message between the source participating functional entity and the ISF and the signaling message between the ISF and the IWF are directly transmitted between the two entities, and the present invention is not limited to the processing in the actual application.
  • a large message mode CPM messaging system is also provided.
  • the system is used to send large message mode CPM messages to a non-CPM user.
  • the large message mode CPM message transmission system mainly includes: a sender CPM client 1, a source participant function entity 2, a network selection function entity 3, an interworking function entity 4, and a non-CPM. System 5. among them,
  • the sender CPM client is configured to send a session invitation message of a large message mode CPM message, where the session invitation message carries a session description protocol SDP session description parameter for negotiation, and is further configured to receive the session invitation message.
  • the success response message of the message is SIP 200 OK; and is also used to establish a media transmission link with the source participating functional entity; and is further configured to send a media transmission request MSRP SEND based on the established media transmission link;
  • the source end participates in the function entity, that is, the participating function entity that the sender belongs to, and is configured to receive and send the session invitation message; and is further configured to receive and send the success response message SIP 200 OK; And is further configured to establish a media transmission link between the sender CPM client and the interworking function entity, and is further configured to receive the media transmission request MSRP SEND; and is further configured to send the media transmission request to the adjacent one.
  • MSRP relay node
  • the network selection function entity is configured to receive and send the session invitation message, and is further configured to receive and send the success response message SIP 200 OK; and is further configured to select an interworking function entity according to a condition carried in the session invitation message.
  • the interworking function entity is configured to receive the session invitation message; and is further configured to create and reply a success response message SIP 200 OK of the session invitation message; and is further configured to establish a media transmission link with the source participating functional entity; Also used to receive the media transmission request MSRP SEND; also for converting the content of the large message mode CPM message into a protocol format conforming to the non-CPM system and transmitting to the non-CPM system.
  • the transmission link between the sender and the IWF is established through the session invitation message of the large message mode CPM, and the content of the large message mode CPM is established.
  • the IWF sends the content of the large message mode CPM to the receiver non-CPM client, which solves the problem that the large message mode CPM cannot be transmitted to the non-CPM system receiver in the current technology, thereby improving the user experience.

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Description

一种融合 IP消息的发送方法及系统 技术领域
本发明涉及移动通信技术领域， 尤其涉及一种大消息模式融合 IP消息 的传送方法及系统。 背景技术
CPM ( Converged IP Messaging, 融合 IP消息） 消息是开放移动联盟 ( Open Mobile Architecture, OMA ) 于 2005年提出的， 其目的是实现多种 消息业务的互通， 提供统一消息业务， 以及完善一致并且方便的消息业务 体验。 CPM融合现有的多种消息业务，包括即时消息（ Instant Message, IM )、 一键通 （ Push - To - Talk over Cellular , POC ), 移动电子邮件 （ Mobile E-Email, MEM ), 短消息业务（ Short Messaging Service, SMS ), 彩信业务 ( Multimedia Messaging Service, MMS )等。
目前， OMA联盟正在制定 CPM V1.0规范。 CPM的业务形式包括： 基 于寻呼模式（ pager-mode )的 CPM消息、 基于会话模式（ session-mode )的 大消息模式 CPM ( Large Message Mode CPM Message )的 CPM消息、 基于 session的其他 CPM会话业务。在用户正常使用这些业务前， 需要注册登录 到 CPM系统， 即通常所说的 "上线"。
收发双方的 CPM客户端（ CPM Client )与 CPM系统， 也称 CPM引擎 ( CPM Enabler )之间使用会话初始化协议（ Session Initiation Protocol, SIP ) 消息 （ SIP Message )传递 pager-mode消息。 当发送方终端需要发送一个大 消息模式 CPM时， 如果消息的大小超过了限制 (例如， 大于 1300字节）， 则 不能用 SIP MESSAGE承载。
CPM 系统定义了如下几个主要的逻辑功能实体： CPM客户端 （CPM Client )、参与功能实体 (Participating Function, PF)、控制功能实体 (Controlling Function, CF)、 消息存储服务器（ Message Storage Server )、 内容存储服务 器 （Content Storage Server )、 网络选择功能实体 ( Interworking Selection Function )、 互通功能实体 ( Interworking Function )等等。
CPM系统用 CPM地址来唯一标识一个用户，按照 CPM系统的架构设 计思想， CPM地址按照归属关系归属到不同的 CPM参与功能实体上， 也 称这个参与功能实体所在的网络环境（包括该参与功能实体所在的 SIP/IP 核心网） 为其所属的某个用户的家乡域， 基于这一基本思想， 上面所提到 的 CPM的几种主体业务都是基于 SIP协议进行信令面的控制的， 所以信令 面都要经过参与功能实体。举例来说，从一个 CPM客户端发出的任何 CPM 信令，进入 CPM网络环境之后先由 SIP/IP核心网根据其发送方的地址路由 至发送方归属的参与功能实体， 即源端参与功能实体， 而最终根据目的端 的接收方地址路由至接收方归属的参与功能实体上去， 即目的端参与个噢 能实体。 即在 CPM系统环境内， 信令起呼于源端参与功能实体， 而终呼于 目的端参与实体。
当一个 CPM用户向一个群组发起呼叫时（如向一个群组发送大消息模 式 CPM消息， 或者向一个群组发起电话会议）， 信令面到达源端参与功能 实体之后， SIP/IP核心网根据群组地址将信令路由至控制功能实体上，再由 控制功能实体进行群组相关的业务控制。
而当 CPM系统和非 CPM系统互通时， 则最终会由 SIP/IP核心网路由 至网络选择功能实体， 在由网络选择功能实体选出最终的互通功能实体。
在现有技术中， 尚未有向某一个非 CPM系统用户 （即 non-CPM user ) 发送大消息模式 CPM消息的完整的解决方案。 CPM 系统用户向一个没有 签约 CPM业务的用户发送大消息邀请消息，那么该信令到达源端功能实体 后， 因为目的端不是一个 CPM系统用户， 那么按照某种路由策略， 源端参 与功能实体将该邀请消息发送给网络选择功能实体上， 即在源端参与功能 实体上触发与非 CPM系统的互通流程。 发明内容
本发明要解决的技术问题是提供一种大消息模式 CPM消息的发送方法 及系统， 用以解决现有技术中 CPM 客户端无法向非 CPM 系统用户 ( non-CPM System, 如 SMS系统、 MMS系统、 Email系统等 )发送大消息 模式 CPM消息的问题。
为达以上目的， 本发明的技术方案是这样实现的：
一种融合 IP消息 CPM的发送方法，
在 CPM客户端与源端参与功能实体之间、互通功能实体与源端参与功 能实体之间分别创建消息会话中继协议链路 MSRP;
所述 CPM客户端将 CPM消息通过各段 MSRP链路发送至所述互通功 能实体，所述互通功能实体将接收到的 CPM消息经协议转换后发送至所述 非 CPM系统。
所述 MSRP链路的创建过程包括： MSRP链路的创建方通过媒体协商 过程 SDP获知对端的 MSRP连接参数，所述创建方根据所述 MSRP连接参 数创建 MSRP链路。
所述 SDP媒体协商过程包括：
CPM客户端发送第一会话邀请消息， 所述第一会话邀请消息由源端参 与功能实体接收； 所述源端参与功能实体发送第二会话邀请消息， 所述第 二会话邀请消息由网络选择功能实体接收； 所述网络选择功能实体根据所 述第二会话邀请消息选择互通功能实体， 并发送第三会话邀请消息， 所述 第三会话邀请消息由互通功能实体接收；
所述互通功能实体发送第三成功响应消息， 所述第三成功响应消息由 网络选择功能实体接收； 所述网络选择功能实体发送第二成功响应消息， 所述第二成功响应消息由所述源端参与功能实体接收； 所述源端参与功能 实体发送第一成功响应消息，所述第一成功响应消息由所述发送方 CPM客 户端接收。
该方法进一步包括：
CPM客户端收到第一成功响应消息后发送第一确认消息， 所述第一确 认消息由所述源端参与功能实体接收； 所述源端参与功能实体收到第一确 认消息后发送第二确认消息， 所述第二确认消息由所述网络选择功能实体 接收； 所述网络选择功能实体收到第二确认消息后发送第三确认消息， 所 述第三确认消息经由互通功能实体接收； 或者，
所述源端参与功能实体收到第二成功响应消息后发送第二确认消息， 所述第二确认消息由所述网络选择功能实体接收； 所述发送方 CPM客户端 收到第一成功响应消息后发送第一确认消息， 所述第一确认消息由所述源 端参与功能实体接收。
所述第一会话邀请消息中携带 CPM客户端的 MSRP连接参数； 源端 参与功能实体根据所述 MSRP连接参数创建源端参与功能实体与发送方 CPM客户端之间的第一 MSRP链路； 或者，
所述第一成功响应消息中携带所述源端参与功能实体的 MSRP连接参 数； 所述发送方 CPM客户端根据源端参与功能实体的 MSRP连接参数创 建 CPM客户端与源端参与功能实体之间的第一 MSRP链路。
所述第二会话邀请消息和第三会话邀请消息中携带所述源端参与功能 实体的 MSRP连接参数；所述互通功能实体根据所述的 MSRP连接参数创 建互通功能实体与源端参与功能实体之间的第二 MSRP链路； 或者，
所述第三成功响应消息和第二成功响应消息中携带所述互通功能实体 的 MSRP连接参数；所述源端参与功能实体根据所述的 MSRP连接参数创 建源端参与功能实体与互通功能实体之间的第二 MSRP链路。 当第一 MSRP链路的创建方是 CPM客户端时， 所述 CPM客户端在收 到第一成功响应消息后创建所述第一 MSRP链路；
当第一 MSRP链路的创建方是源端参与功能实体时， 所述源端参与功 能实体在收到第一确认消息后创建所述第一 MSRP链路。
当第二 MSRP链路的创建方是源端参与功能实体时， 所述源端参与功 能实体在收到第二成功响应消息后创建所述第二 MSRP链路， 或在收到第 一确认消息后创建所述第二 MSRP链路， 或在收到 MSRP媒体传输请求时 创建所述第二 MSRP链路；
当第二 MSRP链路的创建方是互通功能实体时， 所述互通功能实体在 收到第三确认消息后创建所述第二 MSRP链路。
所述互通功能实体将接收到的 CPM 消息经协议转换后发送至所述非 CPM系统的过程包括： 所述互通功能实体接收 CPM消息后， 将所述 CPM 消息转换为符合非 CPM 系统接收方协议格式的内容并发送至所述非 CPM 系统；
所述方法进一步包括：所述互通功能实体完全接收大消息模式 CPM消 息的内容后发送 MSRP响应消息，或互通功能实体收到非 CPM系统的接收 确认消息后发送 MSRP响应消息。
所述方法进一步包括：
CPM客户端发送会话结束消息， 所述会话结束消息由源端参与功能 实体接收； 源端参与功能实体收到所述会话结束消息后发送会话结束消息， 该会话结束消息由网络选择功能实体接收； 网络选择功能实体接收到会话 结束消息后发送会话结束消息， 该会话结束消息由互通功能实体接收； 或 者，
互通功能实体将大消息模式 CPM消息的内容传送给非 CPM系统结束 后， 发送会话结束消息， 该会话结束消息经由网络选择功能实体路由至源 端参与功能实体； 源端参与功能实体收到所述会话结束消息后， 发送会话 结束消息， 该消息由 CPM客户端接收。
所述网络选择功能实体为会话初始化协议 SIP网关；
所述互通功能实体的信令面为 SIP用户代理服务器。
一种 CPM的发送系统， 用于 CPM客户端向非 CPM系统传送 CPM消 息， 包括： CPM客户端、 源端参与功能实体、 网络选择功能实体、 互通功 能实体和非 CPM系统， 其中，
CPM客户端， 用于向大消息接收方发送 CPM消息的会话邀请消息， 其中， 所述会话邀请消息中携带有进行协商的会话描述协议 SDP会话描述 参数； 还用于在建立与所述源端参与功能实体的 MSRP后，发送 CPM消息 至所述源端参与功能实体；
源端参与功能实体， 用于接收所述 CPM客户端发送的会话邀请信息， 建立与所述 CPM客户端的 MSRP链路，并向网络选择功能实体发送所述会 话邀请消息； 还用于建立与所述互通功能实体之间的 MSRP链路； 并且接 收所述 CPM客户端发送的大消息模式 CPM消息内容， 将大消息模式 CPM 消息内容发送至所述互通功能实体；
网络选择功能实体， 用于接收所述源端参与功能实体发送的会话邀请 消息， 根据收到的会话邀请消息里携带的条件选择互通功能实体， 并发送 会话邀请信息至所述互通功能实体；
互通功能实体， 用于接收所述网络选择功能实体发送的所述会话邀请 消息； 建立与所述源端参与功能实体之间的 MSRP链路； 并将从所述源端 参与功能实体接收到的大消息模式 CPM消息转换为符合非 CPM系统的协 议格式， 再发送给非 CPM系统。
本发明通过大消息模式 CPM消息的会话邀请消息建立发送方 CPM客 户端与互通功能实体（ Inter-working Function , IWF )之间的媒体传输链路， 将该大消息模式 CPM消息的内容通过建立的媒体传输链路发送给 IWF, 由 IWF将该大消息模式 CPM消息发送给非 CPM系统， 由非 CPM系统将大 消息模式 CPM消息的内容经过协议转换后发送给接收方客户端，可以解决 现在技术中无法向非 CPM系统用户传输大消息模式 CPM消息的问题， 提 高了用户体验。 附图说明
图 1为根据本发明实施例的大消息模式 CPM消息的传送方法流程图； 图 2为根据本发明实施例的大消息模式 CPM消息传送系统框图。 具体实施方式
本发明解决了 CPM用户发送一条大消息模式 CPM消息给一个非 CPM 用户， 涉及到的功能实体有： CPM客户端 （CPM发送端和 CPM接收端）、 参与功能实体（只涉及源端参与功能实体） 以及网络选择功能实体和互通 功能实体以及非 CPM系统。
由于大消息模式 CPM消息所占的空间较大， 不能直接使用 SIP消息进 行承载， 与 pager-mode模式 CPM消息传送方式不同， 大消息模式 CPM消 息传送路径分为信令路径和媒体路径， 即信令沿信令路径传送， 媒体沿媒 体路径传送。 因此， 在本发明实施例中， 在向非 CPM系统接收方传送大消 息模式 CPM消息时,先使用大消息模式 CPM的会话邀请消息（ INVITE )进 行 SDP(Session Description Protocol, 会话描述协议)协商， 以及建立发送方 CPM客户端与 IWF之间的媒体传输链路。 通过建立的媒体传输链路， 发送 方 CPM客户端使用消息会话中继协议（Message Session Relay Protocol, MSRP )将该大消息模式 CPM消息的内容发送到 IWF, IWF将该大消息模 式 CPM消息的内容转换为符合非 CPM系统的格式并发送到非 CPM系统， 由非 CPM系统发送给接收方客户端。 本发明实施例中所称的大消息模式 CPM消息， 为 OMA制定的 CPM 规范中其大小超过预设限制 （比如， 1300个字节）的 CPM, 该大消息模式 消息不能直接使用 SIP消息进行承载。
以下结合附图对本发明的优选实施例进行说明， 应当理解， 此处所描 述的优选实施例仅用于说明和解释本发明， 并不用于限定本发明。
根据本发明实施例，首先提供了一种大消息模式 CPM消息的传送方法， 该方法用于向非 CPM系统接收方传送大消息模式 CPM消息，具体为， CPM 客户端在向非 CPM系统接收方传送大消息模式 CPM消息前， 先在发送方 CPM客户端与源端参与功能实体之间、 源端参与功能实体与互通功能实体 之间分别创建 MSRP链路，每段 MSRP链路的创建方通过 SDP协商过程获 知对端的 MSRP连接参数， 根据该 MSRP连接参数创建该段 MSRP链路； 之后， 发送方 CPM客户端将大消息模式 CPM 的消息内容依次通过各段 MSRP链路发送至互通功能实体， 互通功能实体将接收的大消息模式 CPM 的消息内容经协议转换后发送至非 CPM系统。
上述 MSRP连接参数， 包括如下几种情况： 连接参数为 IP地址和端口 号； 连接参数为 URI参数： 连接参数为 IP地址、 端口号和 URI参数。
在以下的实施例中， 发送方 CPM客户端为 CPM Client A、 发送方归属 的源端参与功能实体为参与功能实体 A ( Participating Function A )、 网络选 择功能实体为 Inter-working Selection Function A, 筒称为 ISF、 互通功能实 体为 Inter- working Function A,筒称为 IWF、选中的非 CPM系统为 non-CPM System B (经过 ISF选择， 如选中 SMS系统或者 MMS系统或者 Email系 统）。
以下通过实施例具体描述本发明：
如图 1所示为本发明实施例的大消息模式 CPM消息的传送方法的流程 图， 包括以下步骤： 步骤 101 : CPM客户端 A发送大消息模式 CPM消息的第一 SIP INVITE (会话邀请消息），该会话邀请消息中携带用于会话协商的 SDP报文，在该 SDP报文中携带所要传送的媒体数据的 size (大小 )和 content type (媒体 类型 M言息。该第一 SIP INVITE经由 SIP/IP核心网路由至参与功能实体 A; 该第一 SIP INVITE中的 SDP报文中可以携带 CPM客户端 A的 MSRP 连接参数；
步骤 102: 参与功能实体 A接收到第一 SIP INVITE, 作为背靠背用户 代理（ Back to Back User Agent, B2BUA )对接收到的消息进行处理： 根据 接收方地址判断出需要发送到非 CPM 系统， 并且产生、 发送第二 SIP INVITE,其中携带用于会话协商的 SDP报文，报文中保留第一 SIP INVITE 中的 size和 content type信息。 该第二 SIP INVITE经由 SIP/IP核心网路由 网络选择功能实体。
该第二 SIP INVITE中的 SDP报文中可以携带参与功能实体 A的 MSRP 连接参数；
步骤 103: 网络选择功能实体 A接收到第二 SIP INVITE, 根据消息中 的 content type、 size等参数信息选择互通功能实体， 假设选中的互通功能 实体为互通功能实体 A, 之后发送第三 SIP INVITE, 该第三 SIP INVITE经 由 SIP/IP核心网路由至互通功能实体 A。
网络选择功能实体可以作为 SIP网关，对接收到 SIP消息进行转发，此 时第二 SIP INVITE消息与第三 SIP INVITE消息本质上为同一消息。
步骤 104:互通功能实体 A收到第三 SIP INVITE,产生并发送第三 200 OK (成功响应消息 ), 该响应消息经由 SIP/IP核心网路由至网络选择功能 实体 A, 该消息其中携带用于会话协商的应答 SDP报文。
该第三 200 OK中的 SDP报文可以携带互通功能实体 A的 MSRP连接 参数。 互通功能实体的信令面可以看作 SIP UAS ( User Agent Server: 用户代 理服务器）。
步骤 105: 网络选择功能实体 A收到第三 200 OK, 发送第二 200 OK, 该消息经由 SIP/IP核心网路由至参与功能实体 A,该消息中保留了第三 200 OK中的 SDP 4艮文。
网络选择功能实体可以作为 SIP网关，对接收到 SIP消息进行转发，此 时第三 200 OK消息与第二 200 OK消息本质上为同一消息。
步骤 106: 参与功能实体 A收到第二 200 OK, 作为 B2BUA对接收到 的消息进行处理： 产生并发送第一 200 OK。 该第一 200 ΟΚ经由 SIP/IP核 心网路由至 CPM客户端 Α, 其中携带用于会话协商的 SDP报文。
该第一 200 ΟΚ中的 SDP 4艮文中可以携带参与功能实体 Α的 MSRP连 接参数。
步骤 107: CPM客户端 A收到第一 200 OK发送第一 SIP ACK (确认 消息）， 该第一 SIP ACK经由 SIP/IP核心网路由至参与功能实体 A。
该步骤中， CPM客户端 A可以根据参与功能实体 A的 MSRP连接参 数创建 CPM客户端 A与参与功能实体 A之间的第一 MSRP链路。
步骤 108: 参与功能实体 A收到第一 SIP ACK后发送第二 SIP ACK消 息， 该第二 SIP ACK消息经由 SIP/IP核心网路由至网络选择功能实体 A。
该步骤中，参与功能实体 A可以根据互通功能实体的 MSRP连接参数 创建参与功能实体 A与互通功能实体之间的第二 MSRP链路。
步骤 109: 网络选择功能实体 A收到第二 SIP ACK消息后， 发送第三 SIP ACK消息， 该第三 SIP ACK消息经由 SIP/IP核心网路由至互通功能实 体 A。
网络选择功能实体可以作为 SIP网关，对接收到 SIP消息进行转发，此 时第三 ACK消息与第二 ACK消息本质上为同一消息。 步骤 110: CPM客户端 A通过第一 MSRP链路发送第一 MSRP SEND (媒体传输请求 ), 该第一 MSRP SEND是 CPM客户端 A到参与功能实体 A之间的 MSRP SEND,该请求中可以包含建立下一段链路所需功能实体的 MSRP连接参数；
该步骤可以是在第一 MSRP链路建立完成后便执行。
步骤 111 :参与功能实体 A将接收的第一 MSRP SEND中的媒体数据通 过第二 MSRP链路中继传输， 即发送第二 MSRP SEND, 该第二 MSRP SEND是参与功能实体 A与互通功能之间的 MSRP SEND;
步骤 112: 当互通功能实体 A收到参与功能实体 A发来的大消息模式 CPM消息的所有内容后，对接收的内容进行协议转换， 转换为符合非 CPM 系统 B协议格式的内容后发送至非 CPM系统 B;
步骤 113:非 CPM系统 B收到互通功能实体 A发来的经协议转换的内 容， 并向互通功能实体 A返回接收确认消息；
步骤 114: 互通功能实体 A接收到来自非 CPM系统 B的确认消息， 对 确认消息进行协议转换后产生并发送 MSRP 响应消息， 该消息经过第二 MSRP链路传输至参与功能实体 A;
步骤 115: 参与功能实体 A通过第一 MSRP链路发送接收确认消息至 CPM客户端 A。
当大消息模式 CPM消息的所有内容传输完成后， CPM客户端 A收到 接收最后一个 MSRP确认消息后发送指示大消息模式 CPM会话结束的会话 结束消息 SIP BYE, 该会话结束消息经 SIP/IP核心网路由至参与功能实体 A, 参与功能实体 A收到上述会话结束消息后发送会话结束消息， 该会话 结束消息经 SIP/IP核心网路由至网络选择功能实体 A, 由网络选择功能实 体 A发送会话结束消息， 该结束消息路由至互通功能实体 A; 或者， 互通 功能实体 A收到非 CPM系统的接收确认消息后发送会话结束消息，会话结 束消息经由 SIP/IP核心网和网络选择功能实体路由到参与功能实体 A, 参 与功能实体 A收到会话结束消息后发送该会话结束消息， 该会话结束消息 经 SIP/IP核心网路由至 CPM客户端 A。
该实施例中， 参与功能实体 A是在收到第一 SIP ACK后发送第二 SIP ACK的， 需要补充说明是， 参与功能实体 A还可以是在收到第二 200 OK 后便发送第二 SIP ACK, 而无需等待第一 SIP ACK后才发送第二 SIP ACK; 该实施例中， 各网络功能实体（如参与功能实体 A )发送的 SIP ACK 消息可以是该网络功能实体新创建的，也可以是直接转发接收到的 SIP ACK 消息， 本发明对此不作限制。
该实施例中， 参与功能实体 A还可以是在收到第二成功响应消息 200 OK创建第二 MSRP链路；
该实施例中， 第一 MSRP链路的创建方也可以是参与功能实体 A, 此 时需要在第一 SIP INVITE中携带 CPM客户端 A的 MSRP连接参数，参与 功能实体 A可以是在收到第一 SIP ACK消息后根据 CPM客户端 A的 MSRP 连接参数创建第一 MSRP链路。
第二 MSRP链路的创建方也可以是互通功能实体 A, 此时需要在第二 SIP INVITE及第三 SIP INVITE中携带源端参与功能实体的 MSRP连接参 数， 互通功能实体 A可以在接收到第三 SIP ACK消息后根据源端参与功能 实体的 MSRP连接参数创建第二 MSRP链路。
该实施例中， 如果第二 MSRP链路的创建方为参与功能实体 A, 还可 以是参与功能实体 A收到第一 MSRP SEND后创建的。
上述第一 MSRP链路、 第二 MSRP链路创建方式可以是， 创建方根据 对端的 MSRP连接参数主动发起创建链路请求， 或者选择一条主机、 端口 和 /或 MSRP URI ( Universal Resource Identifier, 全球资源标识符 ) 均相符 的已经存在的 MSRP链路作为本段 MSRP链路。 该实施例中， 互通网关实体 A在 MSRP媒体数据传输结束后， 可以沿 媒体传输路径立即向源端方向返回 MSRP响应消息， 或者如本实施例中所 述， 等到来自非 CPM系统的确认消息后，再向源端方向返回 MSRP响应消 息。
该实施例中， CPM系统内部各相邻功能实体之间是通过 SIP/IP核心网 互联的， 即发送方 CPM客户端、 源端参与功能实体、 网络选择功能实体、 互通功能实体之间信令面的 SIP消息（如会话邀请消息 INVITE和成功响应 消息 200OK )是通过 SIP/IP核心网路由到相邻实体上去的，在实际应用中， 各功能实体的信令消息可以全部通过 SIP/IP核心网路由到相邻实体， 也可 以在一部分功能实体之间（如除了 ISF和 IWF这两个与非 CPM系统互通处 理相关的功能实体之外的其他功能实体）通过 SIP/IP核心网路由， 而源端 参与功能实体与 ISF之间的信令消息以及 ISF与 IWF之间的信令消息是在 两实体之间直接发送， 对于实际应用中的处理本发明不作限制。
根据本发明实施例， 还提供了一种大消息模式 CPM消息传送系统。 该 系统用于向某一个非 CPM用户发送大消息模式 CPM消息。
如附图 2所示，根据本发明实施例的大消息模式 CPM消息传输系统主 要包括：发送方 CPM客户端 1、源端参与功能实体 2、网络选择功能实体 3、 互通功能实体 4、 非 CPM系统 5。 其中，
所述发送方 CPM客户端， 用于发送大消息模式 CPM消息的会话邀请 消息， 其中， 所述会话邀请消息中携带有进行协商的会话描述协议 SDP会 话描述参数； 还用于接收所述会话邀请消息的成功响应消息 SIP 200 OK; 还用于与源端参与功能实体之间建立媒体传输链路； 还用于基于已建立的 媒体传输链路发送媒体传输请求 MSRP SEND;
所述源端参与功能实体， 即发送方归属的参与功能实体， 用于接收并 发送所述会话邀请消息；还用于接收并发送所述成功响应消息 SIP 200 OK; 还用于与发送方 CPM客户端之间和互通功能实体之间分别建立媒体传输链 路； 还用于接收所述媒体传输请求 MSRP SEND; 还用于将所述媒体传输请 求发送至相邻的 MSRP中继节点；
所述网络选择功能实体， 用于接收并发送所述会话邀请消息， 还用于 接收并发送所述成功响应消息 SIP 200 OK; 还用于根据会话邀请消息里携 带的条件选择互通功能实体。
所述互通功能实体用于接收所述会话邀请消息； 还用于创建并回复所 述会话邀请消息的成功响应消息 SIP 200 OK; 还用于与源端参与功能实体 之间建立媒体传输链路； 还用于接收媒体传输请求 MSRP SEND; 还用于将 大消息模式 CPM消息的内容转换为符合非 CPM系统的协议格式并发送给 非 CPM系统。
如上所述， 借助本发明实施例提供的技术方案， 对于非 CPM系统接收 方， 通过大消息模式 CPM的会话邀请消息建立发送方与 IWF之间的传输 链路，将该大消息模式 CPM的内容发送给 IWF,由 IWF将大消息模式 CPM 的内容转发给接收方 non-CPM客户端， 解决了现在技术中无法向非 CPM 系统接收方传输大消息模式 CPM的问题， 提高了用户体验。

Claims

权利要求书
1、 一种融合 IP消息 CPM的发送方法， 其特征在于，
在 CPM客户端与源端参与功能实体之间、互通功能实体与源端参与功 能实体之间分别创建消息会话中继协议链路 MSRP;
所述 CPM客户端将 CPM消息通过各段 MSRP链路发送至所述互通功 能实体，所述互通功能实体将接收到的 CPM消息经协议转换后发送至所述 非 CPM系统。
2、 如权利要求 1所述的方法， 其特征在于， 所述 MSRP链路的创建过 程包括： MSRP链路的创建方通过媒体协商过程 SDP获知对端的 MSRP连 接参数， 所述创建方根据所述 MSRP连接参数创建 MSRP链路。
3、如权利要求 2所述的方法， 其特征在于， 所述 SDP媒体协商过程包 括：
CPM客户端发送第一会话邀请消息， 所述第一会话邀请消息由源端参 与功能实体接收； 所述源端参与功能实体发送第二会话邀请消息， 所述第 二会话邀请消息由网络选择功能实体接收； 所述网络选择功能实体根据所 述第二会话邀请消息选择互通功能实体， 并发送第三会话邀请消息， 所述 第三会话邀请消息由互通功能实体接收；
所述互通功能实体发送第三成功响应消息， 所述第三成功响应消息由 网络选择功能实体接收； 所述网络选择功能实体发送第二成功响应消息， 所述第二成功响应消息由所述源端参与功能实体接收； 所述源端参与功能 实体发送第一成功响应消息，所述第一成功响应消息由所述发送方 CPM客 户端接收。
4、 如权利要求 3所述的方法， 其特征在于， 该方法进一步包括： CPM客户端收到第一成功响应消息后发送第一确认消息， 所述第一确 认消息由所述源端参与功能实体接收； 所述源端参与功能实体收到第一确 认消息后发送第二确认消息， 所述第二确认消息由所述网络选择功能实体 接收； 所述网络选择功能实体收到第二确认消息后发送第三确认消息， 所 述第三确认消息经由互通功能实体接收； 或者，
所述源端参与功能实体收到第二成功响应消息后发送第二确认消息， 所述第二确认消息由所述网络选择功能实体接收； 所述发送方 CPM客户端 收到第一成功响应消息后发送第一确认消息， 所述第一确认消息由所述源 端参与功能实体接收。
5、 如权利要求 4所述的方法， 其特征在于，
所述第一会话邀请消息中携带 CPM客户端的 MSRP连接参数； 源端 参与功能实体根据所述 MSRP连接参数创建源端参与功能实体与发送方 CPM客户端之间的第一 MSRP链路； 或者，
所述第一成功响应消息中携带所述源端参与功能实体的 MSRP连接参 数； 所述发送方 CPM客户端根据源端参与功能实体的 MSRP连接参数创 建 CPM客户端与源端参与功能实体之间的第一 MSRP链路。
6、 如权利要求 5所述的方法， 其特征在于，
所述第二会话邀请消息和第三会话邀请消息中携带所述源端参与功能 实体的 MSRP连接参数；所述互通功能实体根据所述的 MSRP连接参数创 建互通功能实体与源端参与功能实体之间的第二 MSRP链路； 或者，
所述第三成功响应消息和第二成功响应消息中携带所述互通功能实体 的 MSRP连接参数；所述源端参与功能实体根据所述的 MSRP连接参数创 建源端参与功能实体与互通功能实体之间的第二 MSRP链路。
7、 如权利要求 5所述的方法， 其特征在于，
当第一 MSRP链路的创建方是 CPM客户端时， 所述 CPM客户端在收 到第一成功响应消息后创建所述第一 MSRP链路；
当第一 MSRP链路的创建方是源端参与功能实体时， 所述源端参与功 能实体在收到第一确认消息后创建所述第一 MSRP链路。
8、 如权利要求 6所述的方法， 其特征在于，
当第二 MSRP链路的创建方是源端参与功能实体时， 所述源端参与功 能实体在收到第二成功响应消息后创建所述第二 MSRP链路， 或在收到第 一确认消息后创建所述第二 MSRP链路， 或在收到 MSRP媒体传输请求时 创建所述第二 MSRP链路；
当第二 MSRP链路的创建方是互通功能实体时， 所述互通功能实体在 收到第三确认消息后创建所述第二 MSRP链路。
9、 如权利要求 1至 8任一项所述的方法， 其特征在于，
所述互通功能实体将接收到的 CPM 消息经协议转换后发送至所述非 CPM系统的过程包括： 所述互通功能实体接收 CPM消息后， 将所述 CPM 消息转换为符合非 CPM 系统接收方协议格式的内容并发送至所述非 CPM 系统；
所述方法进一步包括：所述互通功能实体完全接收大消息模式 CPM消 息的内容后发送 MSRP响应消息，或互通功能实体收到非 CPM系统的接收 确认消息后发送 MSRP响应消息。
10、 如权利要求 9所述的方法， 其特征在于， 所述方法进一步包括： CPM客户端发送会话结束消息， 所述会话结束消息由源端参与功能 实体接收； 源端参与功能实体收到所述会话结束消息后发送会话结束消息， 该会话结束消息由网络选择功能实体接收； 网络选择功能实体接收到会话 结束消息后发送会话结束消息， 该会话结束消息由互通功能实体接收； 或 者，
互通功能实体将大消息模式 CPM消息的内容传送给非 CPM系统结束 后， 发送会话结束消息， 该会话结束消息经由网络选择功能实体路由至源 端参与功能实体； 源端参与功能实体收到所述会话结束消息后， 发送会话 结束消息， 该消息由 CPM客户端接收。
11、 如权利要求 10所述的方法， 其特征在于，
所述网络选择功能实体为会话初始化协议 SIP网关；
所述互通功能实体的信令面为 SIP用户代理服务器。
12、一种 CPM的发送系统，用于 CPM客户端向非 CPM系统传送 CPM 消息， 其特征在于， 包括： CPM客户端、 源端参与功能实体、 网络选择功 能实体、 互通功能实体和非 CPM系统， 其中，
CPM客户端， 用于向大消息接收方发送 CPM消息的会话邀请消息， 其中， 所述会话邀请消息中携带有进行协商的会话描述协议 SDP会话描述 参数； 还用于在建立与所述源端参与功能实体的 MSRP后，发送 CPM消息 至所述源端参与功能实体；
源端参与功能实体， 用于接收所述 CPM客户端发送的会话邀请信息， 建立与所述 CPM客户端的 MSRP链路，并向网络选择功能实体发送所述会 话邀请消息； 还用于建立与所述互通功能实体之间的 MSRP链路； 并且接 收所述 CPM客户端发送的大消息模式 CPM消息内容， 将大消息模式 CPM 消息内容发送至所述互通功能实体；
网络选择功能实体， 用于接收所述源端参与功能实体发送的会话邀请 消息， 根据收到的会话邀请消息里携带的条件选择互通功能实体， 并发送 会话邀请信息至所述互通功能实体；
互通功能实体， 用于接收所述网络选择功能实体发送的所述会话邀请 消息； 建立与所述源端参与功能实体之间的 MSRP链路； 并将从所述源端 参与功能实体接收到的大消息模式 CPM消息转换为符合非 CPM系统的协 议格式， 再发送给非 CPM系统。
PCT/CN2010/072879 2009-09-21 2010-05-18 一种融合ip消息的发送方法及系统 WO2011032390A1 (zh)

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