CN103118044B

CN103118044B - Content distributing service conversation managing method and system, equipment

Info

Publication number: CN103118044B
Application number: CN201110363834.5A
Authority: CN
Inventors: 段小嫣
Original assignee: Huawei Device Co Ltd
Current assignee: Global Innovation Polymerization LLC; Tanous Co
Priority date: 2011-11-16
Filing date: 2011-11-16
Publication date: 2015-12-02
Anticipated expiration: 2031-11-16
Also published as: CN103118044A

Abstract

The embodiment of the present invention provides a kind of content distributing service conversation managing method and system, equipment.Does method comprise: receive the SIP that UE sends Invite request message; One SIP CDS is carried in Invite request message the address of AS.According to CDS the address of AS, to the CDS of correspondence does AS send a SIP Invite request message, for CDS is AS according to a SIP does is Invite request message this IMS P2P ICP is selected in CDS session; Do you receive CDS one SIPInvite request message of what AS returned the carry address of ICP; According to the SIP of address carrying ICP does Invite request message, set up this IMS between UE and ICP P2P CDS session.Adopt the technical scheme of the embodiment of the present invention, can realize IMS P2P does the centralized control of CDS session, strengthen IMS P2P the monitoring of CDS session, guarantees network security, improve IMS P2P the efficiency of management of CDS session.

Description

Content distributing service conversation managing method and system, equipment

Technical field

The embodiment of the present invention relates to networking technology area, particularly relates to a kind of content distributing service conversation managing method and system, equipment.

Background technology

IM CN subsystem point-to-point content distribution industry (InternetProtocolMultimediaCoreNetworkSubsystemPeertoPeer ContentDistributionService; Hereinafter referred to as IPP2PCDS) be a kind of business that IMS and P2P technology is combined, namely operator utilizes IMS network to control media resource in the distribution of P2P network and terminal to the request of media resource, realize distributed content distribution service, as the business such as streaming media service, software dispatch.

In existing IMSP2PCDS business, content server is adopted to preserve media resource content, by the tracking application server (trackerApplicationServer of IMS network; Hereinafter referred to as trackerAS) control distribution and the transmission of resource.The main process of session management is as follows: subscriber equipment (UserEquipment is hereinafter referred to as UE) sends session establishment request message to TrackerAS, and UE applies for the list of resource end points to TrackerAS subsequently; This resource end points (i.e. content server) list, according to preserved resource distribution information, is returned to UE by TrackerAS.After UE obtains end points list, one or more end points (i.e. content server) is selected to connect transmission medium; Subsequently UE regularly with trackerAS lastest imformation, comprise the resource end points list information obtaining AS and upgrade, and to AS report download progress.

Realizing in process of the present invention, inventor finds that in prior art, at least there are the following problems: in existing such scheme, TrackerAS is mainly used in providing the Resources list and tracking assets state, there is no grappling (anchor) in IMSP2PCDS session, the centralized control to IMSP2PCDS session cannot be realized.

Summary of the invention

The embodiment of the present invention provides a kind of content distributing service conversation managing method and system, equipment, in order to realize the centralized control to IMSP2PCDS session.

The embodiment of the present invention provides a kind of content distributing service conversation managing method, is applied in IM CN subsystem point-to-point content distribution business, comprises:

Receive the first Session initiation Protocol invite request message that subscriber equipment sends, in described first Session initiation Protocol invite request message, carry the address of content distributing service application server;

According to the address of described content distributing service application server, content distributing service application server to correspondence sends described first Session initiation Protocol invite request message, be this IM CN subsystem point-to-point content distribution service conversation selection IM CN subsystem point-to-point content distribution business peer-entities for described content distributing service application server according to described first Session initiation Protocol invite request message;

Receive the described first Session initiation Protocol invite request message of carrying the address of described IM CN subsystem point-to-point content distribution business peer-entities that described content distributing service application server returns;

According to described described first Session initiation Protocol invite request message of carrying the address of described IM CN subsystem point-to-point content distribution business peer-entities, set up this IM CN subsystem point-to-point content distribution service conversation between described subscriber equipment and described IM CN subsystem point-to-point content distribution business peer-entities.

Receive the first Session initiation Protocol invite request message that subscriber equipment is sent by service call session control function entity;

Be that this IM CN subsystem point-to-point content distribution service conversation selects IM CN subsystem point-to-point content distribution business peer-entities according to described first Session initiation Protocol invite request message;

The described first Session initiation Protocol invite request message of carrying the address of described IM CN subsystem point-to-point content distribution business peer-entities is sent to described service call session control function entity, for described service call session control function entity according to described first Session initiation Protocol invite request message, set up this IM CN subsystem point-to-point content distribution service conversation between described subscriber equipment and described IM CN subsystem point-to-point content distribution business peer-entities.

The embodiment of the present invention also provides a kind of service call session control function entity equipment, comprising:

First receiver module, for receiving the first Session initiation Protocol invite request message that subscriber equipment sends, carries the address of content distributing service application server in described first Session initiation Protocol invite request message;

Sending module, for the address according to described content distributing service application server, content distributing service application server to correspondence sends described first Session initiation Protocol invite request message, be this IM CN subsystem point-to-point content distribution service conversation selection IM CN subsystem point-to-point content distribution business peer-entities for described content distributing service application server according to described first Session initiation Protocol invite request message;

Second receiver module, for receiving the described first Session initiation Protocol invite request message of carrying the address of described IM CN subsystem point-to-point content distribution business peer-entities that described content distributing service application server returns;

Set up module, for carrying the described first Session initiation Protocol invite request message of the address of described IM CN subsystem point-to-point content distribution business peer-entities described in basis, set up this IM CN subsystem point-to-point content distribution service conversation between described subscriber equipment and described IM CN subsystem point-to-point content distribution business peer-entities.

The embodiment of the present invention also provides a kind of content distributing service application server equipment, comprising:

Receiver module, for receiving the first Session initiation Protocol invite request message that subscriber equipment is sent by service call session control function entity;

Select module, for according to described first Session initiation Protocol invite request message being this IM CN subsystem point-to-point content distribution service conversation selection IM CN subsystem point-to-point content distribution business peer-entities;

Sending module, for sending the described first Session initiation Protocol invite request message of carrying the address of described IM CN subsystem point-to-point content distribution business peer-entities to described service call session control function entity, for described service call session control function entity according to described first Session initiation Protocol invite request message, set up this IM CN subsystem point-to-point content distribution service conversation between described subscriber equipment and described IM CN subsystem point-to-point content distribution business peer-entities.

The embodiment of the present invention also provides a kind of content distributing service conversation management system, comprises service call session control function entity equipment as above and content distributing service application server equipment as above.

The content distributing service conversation managing method of the embodiment of the present invention and system, equipment, by adopting technique scheme, CDSAS can be anchored in IMSP2PCDS session, the centralized control to IMSP2PCDS session can be realized, thus strengthen monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of the embodiment of the present invention, effectively can improve the efficiency of management to IMSP2PCDS session.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

The flow chart of the content distributing service conversation managing method that Fig. 1 provides for the embodiment of the present invention one.

The flow chart of the content distributing service conversation managing method that Fig. 2 provides for the embodiment of the present invention two.

The flow chart of the content distributing service conversation managing method that Fig. 3 provides for the embodiment of the present invention three.

The flow chart of the content distributing service conversation managing method that Fig. 4 provides for the embodiment of the present invention four.

The signaling diagram of the content distributing service conversation managing method that Fig. 5 provides for the embodiment of the present invention five.

The signaling diagram of the content distributing service conversation managing method that Fig. 6 provides for the embodiment of the present invention six.

The signaling diagram of the content distributing service conversation managing method that Fig. 7 provides for the embodiment of the present invention seven.

The signaling diagram of the content distributing service conversation managing method that Fig. 8 provides for the embodiment of the present invention eight.

The signaling diagram of the content distributing service conversation managing method that Fig. 9 provides for the embodiment of the present invention nine.

The signaling diagram of the content distributing service conversation managing method that Figure 10 provides for the embodiment of the present invention ten.

The signaling diagram of the content distributing service conversation managing method that Figure 11 provides for the embodiment of the present invention 11.

The signaling diagram of the content distributing service conversation managing method that Figure 12 provides for the embodiment of the present invention 12.

The signaling diagram of the content distributing service conversation managing method that Figure 13 provides for the embodiment of the present invention 13.

The signaling diagram of the content distributing service conversation managing method that Figure 14 provides for the embodiment of the present invention 14.

The signaling diagram of the content distributing service conversation managing method that Figure 15 provides for the embodiment of the present invention 15.

The signaling diagram of the content distributing service conversation managing method that Figure 16 provides for the embodiment of the present invention 16.

The signaling diagram of the content distributing service conversation managing method that Figure 17 provides for the embodiment of the present invention 17.

The signaling diagram of the content distributing service conversation managing method that Figure 18 provides for the embodiment of the present invention 18.

The signaling diagram of the content distributing service conversation managing method that Figure 19 provides for the embodiment of the present invention 19.

The structural representation of the S-CSCF equipment that Figure 20 provides for the embodiment of the present invention 20.

The structural representation of the S-CSCF equipment that Figure 21 provides for the embodiment of the present invention 21.

The structural representation of the CDSAS equipment that Figure 22 provides for the embodiment of the present invention 22.

The structural representation of the content distributing service conversation management system that Figure 23 provides for the embodiment of the present invention 23.

Embodiment

For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

IMS is IP-based multimedia service communication network, it is considered to media and the composite service thereof such as support voice, video, data, realize the core technology of the next-generation communication network that multiple network (such as moving and fixed network, PS and CS network etc.) merges.

The framework that IMS adopts service set to control, its core functional entities is call conversation control function entity (CallSessionControlFunction; Hereinafter referred to as CSCF).Wherein CSCF can be divided into agency-CSCF (Proxy-CSCF by its position and function; Hereinafter referred to as P-CSCF), service-CSCF (Serving-CSCF; Hereinafter referred to as S-CSCF), inquiry-CSCF ((Interrogating-CSCF; Hereinafter referred to as I-CSCF).Wherein S-CSCF provides the IMS conversation control function of core.When performing certain service needed AS, this service call request is routed to correct AS by S-CSCF, performs service logic by AS.

Session initiation Protocol (SessionInitiationProtocol is adopted in IMS; Hereinafter referred to as SIP) as key-course agreement.SIP is Internet Engineering Task group (InternetEngineeringTaskForce; Hereinafter referred to as IETF) one of the multimedia communications system framework agreement of working out is for setting up, changing or the application layer protocol of ending multimedia session.SIP signaling message is made up of message header and message body.Session Description Protocol (SessionDescriptionProtocol; Hereinafter referred to as SDP) be the message body commonly used the most, for describing media (such as voice, video, the text) information of Multimedia session.

P2P is called as " point-to-point ", " equity " technology, is that a kind of resource (calculating, storage, command, control, communications, and information etc.) distribution utilizes and the network architecture shared.P2P has broken the pattern of original " client/server ", Centroid is there is not during media communication, reciprocity between node, namely each node can carry out the communication of equity, and each node has the reception of media content (Content), storage, transmission and integrated and to the search of media data and searched function etc. simultaneously.

Based on the feature of above IMS and P2P, in prior art, propose business IMS and P2P technology combined.

The flow chart of the content distributing service conversation managing method that Fig. 1 provides for the embodiment of the present invention one.The content distributing service conversation managing method of the present embodiment is applied in IMSP2PCDS.The executive agent of the content distributing service conversation managing method of the present embodiment is S-CSCF.As shown in Figure 1, the content distributing service conversation managing method of the present embodiment, specifically comprises as follows:

100, the first Session initiation Protocol (SessionInitiationProtocol that UE sends is received; Hereinafter referred to as SIP) invite (Invite) request message;

Content distributing service application server (ContentDistributionServicesApplicationServer is carried in one SIPInvite request message; Hereinafter referred to as CDSAS) address.One SIPInvite request message can corresponding SIPInvite request.Alternatively, in the present embodiment, the address of CDSAS can be the uniform resource identifier (UniformResourceIdentifier of this CDSAS; Hereinafter referred to as URI).The URI of such as this CDSAS can be carried in the RequestURI field in a SIPInvite request message.

The control of CDSAS realization to IMSP2PCDS session is quoted in the embodiment of the present invention.

101, according to the address of CDSAS, CDSAS to correspondence sends a SIPInvite request message, be this IMSP2PCDS session selection IM CN subsystem point-to-point content distribution business peer-entities (IMSP2PCDSPeer for CDSAS according to a SIPInvite request message; Hereinafter referred to as ICP);

Such as, in the present embodiment, CDSAS can be one or more according to the number that a SIPInvite request message is the ICP that this IMSP2PCDS session is selected.

102, the SIPInvite request message carrying the address of ICP that CDSAS returns is received;

103, basis carries a SIPInvite request message of the address of ICP, sets up this IMSP2PCDS session between UE and ICP.

The content distributing service conversation managing method of the present embodiment, by receiving the SIPInvite request message that UE sends, carries the address of CDSAS in a SIPInvite request message; According to the address of the CDSAS in a SIPInvite request message, to correspondence CDSAS send a SIPInvite request message, for CDSAS according to a SIPInvite request message be this IMSP2PCDS session selection ICP; Receive the SIPInvite request message carrying the address of ICP that CDSAS sends; According to the SIPInvite request message of address carrying ICP, set up this IMSP2PCDS session between UE and ICP.Adopt the technical scheme of the present embodiment, adopt CDSAS can be anchored in IMSP2PCDS session, the centralized control setting up IMSP2PCDS conversation procedure can be realized, thus strengthen monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of the present embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

Alternatively, IMSP2PCDS sign, the mark in ICP pond, the media description information of IMSP2PCDS session can also be carried in a SIPInvite request message and require one or more of parameter information of the ICP participating in session.

Wherein IMSP2PCDS sign is used to indicate corresponding business.Such as define a kind of new IMS communication business identification (IMSCommunicationServiceIdentifier; Hereinafter referred to as ICSI) represent IMSP2PCDS business: urn:urn-7: 3gpp-service.ims.icsi.p2pcds (or urn:urn-7: 3gpp-service.ims.icsi.p2p, urn:urn-7: 3gpp-service.ims.icsi.cds).Now can carry this IMSP2PCDS sign in Contact, Accept-Contact and/or P-Preferred-Service header field of a SIPInvite request message.According to this IMSP2PCDS sign, S-CSCF can get corresponding CDSAS.

Alternatively, the media description information of IMSP2PCDS session can also be carried in a SIPInvite request message, specifically can adopt Session Description Protocol (SessionDescriptionProtocol; Hereinafter referred to as SDP) message body carries.The media description information of this IMSP2PCDS session comprises medium type as voice, video or word; Can also the coded system comprising media etc., in detail also can with reference to media description information in the Invite request in existing IMS session.

Alternatively, the mark in ICP pond can also be carried in a SIPInvite request message, namely represent that this UE asks to set up IMSP2PCDS session with the ICP in this ICP pond.This ICP pond mark can be that UE obtains in registration or last session process; This ICP pond mark can be this ICPpoolID, that is the URI of this ICPPool.The mark of the corresponding ICP list in this ICP pond.Such as when the mark of carrying ICP pond in a SIPInvite request message, now CDSAS can select the ICP participating in IMSP2PCDS session from this ICP pond.If such as do not have other conditions, this CDSAS then selects all online ICP in this ICP pond as the ICP selected.

Alternatively, the parameter information requiring the ICP participating in session can also be carried in a SIPInvite request message, such as, can increase the preference information of this UE, expect the information such as the address realm of the ICP participating in session as this UE.Such as also can increase the ability information that UE requires the ICP participating in session, the such as requirement such as bandwidth, code capacity.In practical application, other information can also be carried in a SIPInvite request message.

Alternatively, after 100, before 101, S-CSCF is based on initial filter criteria (initialFilterCriteria; Hereinafter referred to as IFC) send a SIPInvite request message to CDSAS again.Here IFC can for the address according to the CDSAS carried in a SIPInvite request message.Or obtain corresponding CDSAS when carrying IMSP2PCDS sign in a SIPInvite request message according to IMSP2PCDS sign.

Alternatively, above-described embodiment 102 in the ICP address of carrying in a SIPInvite request message be the address of the ICP that CDSAS selects in 101, this ICP address can be URI and/or the IP address of this ICP.This ICP address can be indicated by the combination of following any one or various ways:

1) URI of ICP is carried in the RequestURI in a SIPInvite request message;

2) the IP address of URI and/or ICP of ICP is carried in " TO " header field in a SIPInvite request message;

3) the SIP head territory " Peer " that increase by is new in a SIPInvite request message, carries the URI of ICP in " Peer ";

4) utilize existing SIP head territory " User-to-User ", its parameter is expanded, represent the URI of ICP in IMSP2PCDS communication.Wherein can carry the URI of 1 or multiple ICP; Such as: User-to-User:target=<ICP-2URI; ICP-3URI>; Purpose=p2pcds.

5) at the Session Description Protocol (SessionDescriptionProtocol of a SIPInvite request message; Hereinafter referred to as SDP) message body in carry the URI of ICP, " m=" row (media are capable) in the message body of SDP, " c=" row (connected row), " a=" row (property column).The URI of ICP can be carried in " c=" row (connected row) and/or " a=" row (property column).

Meanwhile, for the situation of multiple ICP, ICP priority can also be indicated, represent and preferentially set up the connection with the high ICP of priority, can in the following way:

" q " (qvalue) parameter is increased to represent the priority of the ICP of correspondence in " TO " header field, " Peer " header field or " User-to-User " header field.Such as: Peer:ICP-1URI; Q=0.9; ICP-2URI; Q=0.5.

Alternatively, in the content distributing service conversation managing method of above-described embodiment, 103 can adopt following steps to realize:

(1) according to the address of ICP, a SIPInvite request message is sent, to ask this IMSP2PCDS session of setting up between UE and ICP to ICP;

(2) the first sip response message that ICP returns is received;

Address and the media description information of ICP is carried in the first sip response message in the present embodiment; First sip response message is the response message that ICP reception the one SIPInvite request message returns.Alternatively, carry in first sip response message in the present embodiment the address of ICP mode can with in above-described embodiment in 102 a SIPInvite request message to carry the mode of the address of ICP identical, with reference to the record of above-described embodiment, can not repeat them here in detail.

Alternatively, URI and/or the IP address of ICP can also be carried in " Contact " header field in the first sip response message.Meanwhile, for the situation comprising multiple ICP, the priority of ICP can also be indicated in the following ways: utilize " q " (qvalue) parameter of " Contact " header field to indicate the priority of corresponding ICP, such as Contact:ICP-1URI; Q=0.9; ICP-2URI; Q=0.5.

In the embodiment of the present invention, the media description information of ICP comprises the type of the media information that this ICP provides as voice, word or video, coded system of the media information that this ICP provides etc., in detail can with reference to the media description information related in existing IMS session.

Further alternatively, after (2), also comprise as follows:

(3) the first sip response message is sent to CDSAS;

(4) the first sip response message that CDSAS returns is received, to determine that CDSAS receives this first sip response message;

(5) this first sip response message is sent to UE, to inform that UE sets up address and the media description information of this IMSP2PCDS session ICP;

(6) response message of the first sip response message that UE sends is received, to determine that UE receives the first sip response message;

(7) response message of the first sip response message that UE sends is forwarded to CDSAS;

(8) response message of the first sip response message that CDSAS returns is received, to determine that CDSAS receives the response message of the first sip response message;

(9) response message of the first sip response message is returned to ICP, to confirm to set up this IMSP2PCDS session.

Alternatively, on the basis of the technical scheme of above-described embodiment, agency (Proxy) ICP can be introduced and set up IMSP2PCDS session.This ProxyICP can be pre-configured.Such as can specify a ProxyICP in an ICP pond (Pool).One group of ICP can be thought in ICPPool.In the content distributing service conversation managing method of wherein above-described embodiment, also carry the address of ProxyICP in a SIPInvite request message, now, 103 of above-described embodiment can adopt following steps to realize:

A () address according to ICP and the address of ProxyICP, send a SIPInvite request message, to ask this IMSP2PCDS session of setting up between UE and ICP by ProxyICP to ICP;

Particularly, first according to the address of ProxyICP, a SIPInvite request message can be sent to ProxyICP, in a SIPInvite request message, carry the address of ICP and the address of ProxyICP.Then ProxyICP is according to the address of the ICP in a SIPInvite request message, sends a SIPInvite request message, to ask this IMSP2PCDS session of setting up between UE and ICP to ICP.

B () receives the first sip response message that ICP is sent by ProxyICP.

Wherein carry ICP address and media description information in this first sip response message, the first sip response message is the response message that ICP reception the one SIPInvite request message returns.

Alternatively, after above-mentioned (b), can also comprise further:

C () sends the first sip response message to CDSAS;

D () receives the first sip response message that CDSAS returns, to determine that CDSAS receives the first sip response message;

E () forwards the first sip response message to UE, to inform that UE sets up address and the media description information of this IMSP2PCDS session ICP;

F () receives the response message of the first sip response message that UE sends, to determine that UE receives the first sip response message;

G () forwards the response message of the first sip response message that UE sends to CDSAS;

H () receives the response message of the first sip response message that CDSAS returns, to determine that CDSAS receives the response message of the first sip response message;

I () returns the response message of the first sip response message to ICP by ProxyICP, to confirm to set up this IMSP2PCDS session.

Such as be specifically as follows: the response message first returning the first sip response message to ProxyICP, then returned the response message returning the first sip response message to ICP by ProxyICP, to confirm to set up this IMSP2PCDS session.

Alternatively, on the basis of the technical scheme of above-described embodiment, entrance (Entry) ICP can be introduced and set up IMSP2PCDS session.This entrance ICP is similar to the ProxyICP in above-described embodiment, but this entrance ICP does not provide agent functionality.This entrance ICP also can be pre-configured, also can be that CDSAS selects according to certain condition.In the content distributing service conversation managing method of wherein above-described embodiment, when the ICP address of carrying in a SIPInvite request message is the address of entrance ICP, 102 of above-described embodiment can comprise: receive the SIPInvite request message carrying the address of entrance ICP that CDSAS sends; Only one, the address of the entrance ICP now carried in a SIPInvite request message.

Now, 103 of above-described embodiment can comprise: according to the SIPInvite request message of address carrying entrance ICP, this IMSP2PCDS session between at least one ICP setting up UE and comprise entrance ICP.Such as can specifically comprise as follows:

(1) according to the address of the entrance ICP in a SIPInvite request message, a SIPInvite request message is sent to entrance ICP, to ask entrance ICP to propagate a SIPInvite request message between at least one ICP comprising entrance ICP, to ask this IMSP2PCDS session of setting up between UE and at least one ICP;

In this embodiment, between at least one ICP comprising entrance ICP, propagate a SIPInvite request message adopt SIP mechanism, namely by entrance ICP, the one SIPInvite request message is passed to one of them qualified ICP, then pass to another qualified ICP by this ICP.Gone to select the next ICP that will propagate by each ICP.The ICP that the parameter information that such as each ICP can participate in the OCP of IMSP2PCDS session according to the requirement of carrying in a SIPInvite request message goes selection to participate in.

(2) the first sip response message that at least one ICP or at least one ICP is returned by entrance ICP is received; The sip response message of at least one ICP address and media description information is carried in first sip response message; First sip response message is the response message that ICP reception the one SIPInvite request message returns;

Further alternatively, after (2), can also comprise as follows:

(3) the first sip response message is sent to CDSAS;

(4) the first sip response message that CDSAS returns is received, to determine that CDSAS receives the first sip response message;

(5) the first sip response message is sent to UE, to inform that UE sets up address and the media description information of at least one ICP of this IMSP2PCDS session;

(9) return the response message of the first sip response message to entrance ICP, between at least one ICP, propagate the response message of the first sip response message for entrance ICP, to confirm this IMSP2PCDS session of setting up between UE and at least one ICP.

Wherein entrance ICP propagates the response message employing SIP mechanism of the first sip response message between at least one ICP, in detail can with reference to the relevant record of above-described embodiment or prior art.

Adopt the technical scheme of above-described embodiment, adopt CDSAS can be anchored in IMSP2PCDS session, the centralized control setting up IMSP2PCDS conversation procedure can be realized, thus strengthen monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of above-described embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

The flow chart of the content distributing service conversation managing method that Fig. 2 provides for the embodiment of the present invention two.The executive agent of the content distributing service conversation managing method of the present embodiment is still S-CSCF, and the content distributing service conversation managing method of the present embodiment, on the basis of above-mentioned embodiment illustrated in fig. 1 and expansion embodiment, can also comprise following content:

200, when needs add or delete an ICP in this IMSP2PCDS session, the 2nd SIPInvite request message that CDSAS sends is received;

Carrying the address of the ICP that needs add or needs are deleted in 2nd SIPInvite request message, needing the ICP added or needs are deleted add or leave this IMSP2PCDS session for asking.That is, for this IMSP2PCDS session adds or delete an ICP.

201, the 2nd SIPInvite request message is sent according to the 2nd SIPInvite request message to the ICP that needs add or needs are deleted, to ask to need the ICP added or needs are deleted add or leave this IMSP2PCDS session.

The application scenarios of the present embodiment for CDSAS can provide the media content needed for UE by finding certain ICP just reached the standard grade to the subscription of ICP state time, this ICP can be determined to add this IMSP2PCDS session.Or CDSAS is very little by finding the current available transmission bandwidth of certain ICP in this IMSP2PCDS session to the subscription of ICP state, this ICP can be determined to delete from this IMSP2PCDS session.

The content distributing service conversation managing method of the present embodiment, when needs add or delete an ICP in this IMSP2PCDS session, receives the 2nd SIPInvite request message that CDSAS sends; The 2nd SIPInvite request message is sent to the ICP that needs add or needs are deleted, to ask to need the ICP added or needs are deleted add or leave this IMSP2PCDS session according to the 2nd SIPInvite request message.Adopt the technical scheme of the present embodiment, adopt CDSAS can be anchored in IMSP2PCDS session, centralized control can be carried out when adding for IMSP2PCDS session or deleting ICP, thus strengthen monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of the present embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

Alternatively, on the basis of above-mentioned content distributing service conversation managing method embodiment illustrated in fig. 2, after 201, can also comprise:

(1) the second sip response message needing the ICP added or needs are deleted to send is received;

And forward the second sip response message to CDSAS (2);

(3) SIP receiving CDSAS transmission re-invites (Re-Invite) request message;

Carry address and the media description information of the ICP that needs add or needs are deleted in this SIPRe-Invite request message, can tell that this media information on this ICP address of UE is what newly add like this, can be used for UE to use.Can tell that this media information on this ICP address of UE is deleted, to inform that the media that UE is corresponding can not re-use.

(4) to UE forward carry SIPRe-Invite request message, with add or deletes needs add or needs deletion ICP after, upgrade this IMSP2PCDS session.

Alternatively, SIPRe-Invite request message can also be sent to the ICP carrying out this IMSP2PCDS session with UE, with add or delete needs add or needs delete ICP after, upgrade this IMSP2PCDS session.

Alternatively, on the basis of above-mentioned content distributing service conversation managing method embodiment illustrated in fig. 2, for the situation also introducing ProxyICP in IMSP2PCDS session, in the 2nd SIPInvite request message, also carry the address of ProxyICP.Now 201 specifically can comprise:

A () is according to the address of ProxyICP, the 2nd SIPInvite request message is sent to ProxyICP, add as required for ProxyICP or the address of ICP that needs are deleted, the 2nd SIPInvite request message is sent, to ask to need the ICP added or needs are deleted add or leave this IMSP2PCDS session to the ICP that needs add or needs are deleted.

And further, after (a), can also comprise:

B () receives the second sip response message needing the ICP added or needs are deleted to be sent by ProxyICP;

Address and the media description information of the ICP that needs add or needs are deleted is carried in this second sip response message.

C () forwards the second sip response message to CDSAS;

D () receives the SIPRe-Invite request message that CDSAS sends;

Address and the media description information of the ICP that needs add or needs are deleted is carried in this SIPRe-Invite request message.

E () forwards SIPRe-Invite request message to UE or ICP, with add or deletes needs add or needs deletion ICP after, upgrade this IMSP2PCDS session.

Alternatively, on the basis of above-mentioned content distributing service conversation managing method embodiment illustrated in fig. 2, for the situation also introducing entrance ICP in IMSP2PCDS session, its implementation process is identical with the situation not adding ProxyICP in above-described embodiment.But upgrading this IMSP2PCDS session specifically can comprise as follows:

SIPRe-Invite request message is sent to entrance ICP, for entrance ICP add or delete needs add or needs delete ICP after at least one ICP between propagate SIPRe-Invite request message, with add or delete needs add or needs delete ICP after, upgrade this IMSP2PCDS session; This at least one ICP comprises entrance ICP.

Adopt the technical scheme of above-described embodiment, adopt CDSAS can be anchored in IMSP2PCDS session, centralized control can be carried out when adding for IMSP2PCDS session or deleting ICP, thus strengthen monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of above-described embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

The flow chart of the content distributing service conversation managing method that Fig. 3 provides for the embodiment of the present invention three.The executive agent of the content distributing service conversation managing method of the present embodiment is S-CSCF.The content distributing service conversation managing method of the present embodiment, on the basis of above-mentioned Fig. 1 or embodiment illustrated in fig. 2 and expansion embodiment, can also comprise following content:

300, when discharging this IMSP2PCDS session ongoing, the releasing session request message carrying this IMSP2PCDS session identification that CDSAS sends is received;

301, this IMSP2PCDS session is discharged according to releasing session request message.

The application scenarios of the present embodiment can for CDSAS network congestion detected time, CDSAS determines that this IMSP2PCDS session of release is carried out for session that priority is higher provides during resource.

The content distributing service conversation managing method of the present embodiment, when discharging this IMSP2PCDS session ongoing, receives the releasing session request message carrying this IMSP2PCDS session identification that CDSAS sends; This IMSP2PCDS session is discharged according to releasing session request message.Adopt the technical scheme of the present embodiment, adopt CDSAS can be anchored in IMSP2PCDS session, centralized control can be carried out when discharging IMSP2PCDS session, thus strengthen monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of above-described embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

Alternatively, on the basis of above-mentioned technical scheme embodiment illustrated in fig. 3, wherein 301 specifically can comprise as follows:

(1) according to releasing session request message, send the releasing session request message carrying this IMSP2PCDS session identification to ICP, discharge this IMSP2PCDS session to ask ICP;

(2) the releasing session response message that ICP sends is received.

This releasing session response message is that ICP receives releasing session request message and the response message returned after discharging this IMSP2PCDS session.

Alternatively, on the basis of above-mentioned technical scheme embodiment illustrated in fig. 3, for the situation also introducing ProxyICP in IMSP2PCDS session, in the releasing session request message in 300, also carry the address of ProxyICP.Now 301 specifically can comprise:

A () is according to the address of ProxyICP, the releasing session request message carrying this IMSP2PCDS session identification is sent to ProxyICP, send to the ICP carrying out this IMSP2PCDS session the releasing session request message carrying this IMSP2PCDS session identification for ProxyICP, discharge this IMSP2PCDS session to ask the ICP carrying out this IMSP2PCDS session;

B () receives the releasing session response message that ICP is sent by ProxyICP.

Alternatively, on the basis of above-mentioned technical scheme embodiment illustrated in fig. 3, for the situation also introducing entrance ICP in IMSP2PCDS session, in the releasing session request message in 300, also carry the address of entrance ICP.Now 301 specifically can comprise:

I () is according to the address of entrance ICP, the releasing session request message carrying this IMSP2PCDS session identification is sent to entrance ICP, to ask entrance ICP to propagate releasing session request message between at least one ICP comprising entrance ICP, discharge this IMSP2PCDS session to ask at least one ICP;

(ii) the releasing session response message that at least one ICP or at least one ICP is sent by entrance ICP is received.

This releasing session response message is that at least one ICP receives releasing session request message and the response message returned after discharging this IMSP2PCDS session.

Alternatively, on the basis of above-mentioned illustrated embodiment, releasing session request message also can be that the UE set up by initiation session initiates.Now before 300 of above-described embodiment, can also comprise:

(1) the releasing session request message carrying this IMSP2PCDS session identification that UE sends is received;

(2) the releasing session request message carrying this IMSP2PCDS session identification is forwarded to CDSAS, to be determined by CDSAS whether UE has permission this IMSP2PCDS session of request release.

Particularly, CDSAS specifically judges that whether this UE is the initiator of this IMSP2PCDS session, if so, determines that UE has permission this IMSP2PCDS session of request release; Otherwise UE does not have authority request to discharge this IMSP2PCDS session.

Alternatively, when releasing session request message is that CDSAS initiates, now 301 on the basis comprising above-mentioned three kinds of alternatives, following content can also be comprised: send the releasing session request message carrying this IMSP2PCDS session identification to UE, discharge this IMSP2PCDS session to ask UE; And receive the releasing session response message of UE transmission.This releasing session response message is that UE receives releasing session request message and the response message returned after discharging this IMSP2PCDS session.

Alternatively, in above-described embodiment, ICP discharges this IMSP2PCDS session, the media transfer port of ICP number (portnumber) specifically can be passed through to set to 0, such as: m=video0RTP/AVP9899.Or " q " (qvalue) parameter of ICP-3 is set to 0, such as: Peer:ICP-2URI; Q=0.9; ICP-3URI; Q=0.7; ICP-3URI; Q=0.

Adopt the technical scheme of above-described embodiment, adopt CDSAS can be anchored in IMSP2PCDS session, centralized control can be carried out when discharging IMSP2PCDS session, thus strengthen monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of above-described embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

The flow chart of the content distributing service conversation managing method that Fig. 4 provides for the embodiment of the present invention four.The content distributing service conversation managing method of the present embodiment is applied in IMSP2PCDS.The executive agent of the content distributing service conversation managing method of the present embodiment is CDSAS.As shown in Figure 4, the content distributing service conversation managing method of the present embodiment, specifically can comprise following content:

400, the SIPInvite request message that UE is sent by S-CSCF is received;

401, according to a SIPInvite request message be this IMSP2PCDS session select ICP;

402, send the SIPInvite request message carrying the address of ICP to S-CSCF, for S-CSCF according to a SIPInvite request message, set up this IMSP2PCDS session between UE and ICP.

Particularly, namely CDSAS carries the address of the ICP of selection in the SIPInvite request message received, and sends to S-CSCF.

The content distributing service conversation managing method of the present embodiment and the difference of above-mentioned content distributing service conversation managing method embodiment illustrated in fig. 1 only exist, and embodiment illustrated in fig. 1ly describe technical scheme of the present invention in S-CSCF side.And the content distributing service conversation managing method of the present embodiment describes technical scheme of the present invention in CDSAS side.Therefore the detailed implementation of the present embodiment with reference to above-mentioned record embodiment illustrated in fig. 1, can not repeat them here.

The content distributing service conversation managing method of the present embodiment, by receiving the SIPInvite request message that UE is sent by S-CSCF; According to a SIPInvite request message be this IMSP2PCDS session select ICP; Send the SIPInvite request message carrying the address of ICP to S-CSCF, for S-CSCF according to a SIPInvite request message, set up this IMSP2PCDS session between UE and ICP.Adopt the technical scheme of the present embodiment, can CDSAS can be anchored in IMSP2PCDS session, the centralized control to IMSP2PCDS session can be realized, thus strengthen monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of the present embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

Alternatively, on the basis of above-mentioned technical scheme embodiment illustrated in fig. 4, after 402, following content can also be comprised: when needs add or delete an ICP in this IMSP2PCDS session, the 2nd SIPInvite request message is sent to S-CSCF, the address of the ICP that needs add or needs are deleted is carried in 2nd SIPInvite request message, the 2nd SIPInvite request message is sent according to the 2nd SIPInvite request message to the ICP that needs add or needs are deleted for S-CSCF, to ask to need the ICP added or needs are deleted add or leave this IMSP2PCDS session.

Further alternatively, for the situation also introducing ProxyICP in IMSP2PCDS session, the address of ProxyICP is also carried in 2nd SIPInvite request message, for the address of S-CSCF according to ProxyICP, the 2nd SIPInvite request message is sent to ProxyICP, add as required for ProxyICP or the address of ICP that needs are deleted, the 2nd SIPInvite request message is sent, to ask to need the ICP added or needs are deleted add or leave this IMSP2PCDS session to the ICP that needs add or needs are deleted.

Now, further alternatively, after sending the 2nd SIPInvite request message to S-CSCF, can also comprise: send SIPRe-Invite request message to S-CSCF, address and the media description information of the ICP that needs add or needs are deleted is carried in this SIPRe-Invite request message, forward SIPRe-Invite request message for S-CSCF to UE or ICP, with add or deletes needs add or needs deletion ICP after, upgrade this IMSP2PCDS session.

Alternatively, on the basis of above-mentioned content distributing service conversation managing method embodiment illustrated in fig. 3, for the situation also introducing entrance ICP in IMSP2PCDS session, its implementation process is identical with the situation not adding ProxyICP in above-described embodiment.With reference to the record of above-described embodiment, can not repeat them here in detail.

Alternatively, on the basis of above-mentioned technical scheme embodiment illustrated in fig. 4, after 402, or above-mentioned possibility: after S-CSCF sends the 2nd SIPInvite request message, can also comprise as follows: when discharging this IMSP2PCDS session ongoing, send the releasing session request message carrying this IMSP2PCDS session identification to S-CSCF, discharge this IMSP2PCDS session for S-CSCF according to releasing session request message.

Now, alternatively, for the situation also introducing ProxyICP in IMSP2PCDS session, the address of ProxyICP is also carried in releasing session request message in such scheme, for the address of S-CSCF according to ProxyICP, the releasing session request message carrying this IMSP2PCDS session identification is sent to ProxyICP, send to the ICP carrying out this IMSP2PCDS session the releasing session request message carrying this IMSP2PCDS session identification for ProxyICP, the ICP carrying out this IMSP2PCDS session with request discharges this IMSP2PCDS session.

Now, alternatively, for the situation also introducing entrance ICP in IMSP2PCDS session, the address of entrance ICP is also carried in releasing session request message in such scheme, for the address of S-CSCF according to entrance ICP, send the releasing session request message carrying this IMSP2PCDS session identification to entrance ICP, to ask entrance ICP to propagate releasing session request message between at least one ICP comprising entrance ICP, discharge this IMSP2PCDS session to ask at least one ICP.

Alternatively, when above-mentioned releasing session request message is the UE initiation initiating this IMSP2PCDS session time, before sending carry the releasing session request message of this IMSP2PCDS session identification to S-CSCF in above-described embodiment, also comprise: receive the releasing session request message carrying this IMSP2PCDS session identification that sent by S-CSCF of UE; And determine that UE has permission this IMSP2PCDS session of request release.Alternatively, what UE was sent by S-CSCF carries the mark carrying UE in the releasing session request message of this IMSP2PCDS session identification.

It should be noted that, need the address carrying CDSAS in a SIPInvite request message, is the URI of CDSAS here, so that the SIPInvite request message that UE can send according to the URI of this CDSAS by S-CSCF sends to CDSAS.Alternatively, also carry IMSP2PCDS sign, the mark in ICP pond, the media description information of IMSP2PCDS session in a SIPInvite request message and require one or more of parameter information of the ICP participating in session.

It should be noted that, above-mentioned alternatives is all the technical schemes describing the embodiment of the present invention in CDSAS side, to above-mentioned Fig. 1,2 with 3 be shown in the technical scheme of the embodiment that S-CSCF side describes and corresponding enlargement technology realize identical, with reference to the record of above-mentioned related embodiment, can not repeat them here in detail.

Adopt the technical scheme of above-described embodiment, adopt CDSAS can be anchored in IMSP2PCDS session, can realize in the centralized control setting up, manage and discharge IMSP2PCDS conversation procedure, thus strengthen monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of above-described embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

The signaling diagram of the content distributing service conversation managing method that Fig. 5 provides for the embodiment of the present invention five.To set up this IMSP2PCDS session, technical scheme of the present invention is described in the present embodiment.As shown in Figure 5, the content distributing service conversation managing method of the present embodiment, specifically can comprise as follows:

500, UE sends SIPInvite request to S-CSCF;

This SIPInvite asks the SIPInvite request message be equivalent in above-described embodiment, and the particular content during this SIPInvite asks can with reference to a SIPInvite request message of the relevant record of above-described embodiment.Here UE can be understood as ICP-1.

501, S-CSCF sends this SIPInvite to CDSAS and asks;

502, CDSAS asks as ICP-2 and ICP-3 is selected in this IMSP2PCDS session according to this SIPInvite;

Here to select ICP-2 and ICP-3.Multiple ICP can be selected in practical application.

503, CDSAS sends the SIPInvite request of carrying ICP-2 and the ICP-3 address of selection to S-CSCF

504, S-CSCF sends this SIPInvite to ICP-2 and asks, to ask this IMSP2PCDS session of setting up between UE and ICP-2;

505, ICP-2 returns 200OK to S-CSCF; Address and the media description information of ICP-2 is carried in this 200OK;

506, S-CSCF sends SIPInvite request message, to ask this IMSP2PCDS session of setting up between UE and ICP-3 to ICP-3;

507, ICP-3 returns 200OK to S-CSCF; Address and the media description information of ICP-3 is carried in this 200OK;

508, S-CSCF returns 200OK to CDSAS, carries address and the media description information of ICP-2 and ICP-3 in this 200OK;

509, CDSAS returns to S-CSCF and carries the address of ICP-2 and ICP-3 and the 200OK of media description information;

510, S-CSCF sends to UE and carries the address of ICP-2 and ICP-3 and the 200OK of media description information;

511, UE returns ACK to S-CSCF, carries the address of ICP-2 and ICP-3 and the 200OK of media description information to represent to receive;

512, S-CSCF forwards the ACK that returns of UE to CDSAS;

513, CDSAS returns the ACK received to S-CSCF;

514, S-CSCF is to ICP-2 transmission and reception to ACK, to inform this IMSP2PCDS session establishment success of ICP-2;

515, S-CSCF is to ICP-3 transmission and reception to ACK, to inform this IMSP2PCDS session establishment success of ICP-3.

Adopt the technical scheme of the present embodiment, adopt CDSAS can be anchored in IMSP2PCDS session, the centralized control setting up IMSP2PCDS conversation procedure can be realized, thus strengthen monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of the present embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

The signaling diagram of the content distributing service conversation managing method that Fig. 6 provides for the embodiment of the present invention six.To set up this IMSP2PCDS session, technical scheme of the present invention is described in the present embodiment.As shown in Figure 6, introduce in the IMSP2PCDS of the present embodiment and have ProxyICP.The content distributing service conversation managing method of the present embodiment, specifically can comprise as follows:

Wherein 600-602 is identical with above-mentioned 500-502 embodiment illustrated in fig. 5, with reference to the record of above-described embodiment, can not repeat them here in detail.

603, CDSAS sends the SIPInvite request of carrying and selecting ICP-2 and ICP-3 address and ProxyICP address to S-CSCF;

604, CDSAS sends this SIPInvite to ProxyICP and asks;

605, ProxyICP asks according to this SIPInvite received, and sends SIPInvite request, to ask this IMSP2PCDS session of setting up between UE and ICP-2 to ICP-2;

606, the 200OK that returns to ProxyICP of ICP-2; Address and the media description information of ICP-2 is carried in this 200OK;

607, ProxyICP asks according to this SIPInvite received, and sends SIPInvite request, to ask this IMSP2PCDS session of setting up between UE and ICP-3 to ICP-3;

608, the 200OK that returns to ProxyICP of ICP-3; Address and the media description information of ICP-3 is carried in this 200OK;

609, ProxyICP returns to S-CSCF and carries the address of ICP-2 and ICP-3 and the 200OK of media description information;

610-615 is identical with above-mentioned 508-513 embodiment illustrated in fig. 5, with reference to the record of above-described embodiment, can not repeat them here in detail.

616, S-CSCF sends ACK to ProxyICP;

617, ProxyICP is to ICP-2 transmission and reception to ACK, to inform this IMSP2PCDS session establishment success of ICP-2;

618, ProxyICP is to ICP-3 transmission and reception to ACK, to inform this IMSP2PCDS session establishment success of ICP-3.

The signaling diagram of the content distributing service conversation managing method that Fig. 7 provides for the embodiment of the present invention seven.To set up this IMSP2PCDS session, technical scheme of the present invention is described in the present embodiment.As shown in Figure 7, introduce in the IMSP2PCDS of the present embodiment and have entrance ICP.The content distributing service conversation managing method of the present embodiment, specifically can comprise as follows:

Wherein 700-701 is identical with above-mentioned 500-501 embodiment illustrated in fig. 5, with reference to the record of above-described embodiment, can not repeat them here in detail.

702, CDSAS asks as entrance ICP is selected in this IMSP2PCDS session according to this SIPInvite.

In the present embodiment for select entrance ICP for ICP-2.

703, CDSAS sends the SIPInvite request of carrying the ICP-2 address of selection to S-CSCF;

704, S-CSCF sends SIPInvite request to ICP-2, to ask to propagate SIPInvite request at least one ICP comprising ICP-2;

705, after ICP-2 receives SIPInvite request, according to the next ICP of SIPInvite request selecting, ICP-3 is selected for ICP-2 here.ICP-2 sends SIPInvite request to ICP-3;

706, ICP-3 returns 200OK to ICP-2; Address and the media description information of ICP-3 is carried in this 200OK;

707, after ICP-3 receives SIPInvite request, according to the next ICP of SIPInvite request selecting, ICP-4 is selected for ICP-3 here.ICP-3 sends SIPInvite request to ICP-4;

Suppose that only comprising ICP-2, ICP-3 and ICP-4 at least one ICP in the present embodiment is example, now can think that ICP-4 selects less than qualified ICP again.

708, ICP-4 returns 200OK to ICP-3; Address and the media description information of ICP-4 is carried in this 200OK;

709, ICP-3 returns to ICP-2 the 200OK that ICP-4 returns to ICP-3;

710, ICP-2 returns the 200OK carrying ICP-2, ICP-3 and ICP-4 address and media description information to S-CSCF;

710 is intensively the 200OK carrying ICP-2, ICP-3 and ICP-4 address and media description information is sent to S-CSCF by ICP-2.Alternatively, the 200OK carrying ICP-2, ICP-3 and ICP-4 address and media description information respectively can send to S-CSCF respectively.As ICP-3 in 706 returns 200OK to ICP-2; This 200OK is directly sent to S-CSCF by ICP-2.In 709, ICP-3 returns to ICP-2 the 200OK that ICP-4 returns to ICP-3; This 200OK is also sent to S-CSCF by ICP-2.

711-716 and above-mentioned 508-513 embodiment illustrated in fig. 5 except the address of carrying ICP-4 in 200OK and media description information more, and all the other realize identical, with reference to the record of above-described embodiment, can not repeat them here in detail.

717, S-CSCF sends ACK to ICP-2, to inform this IMSP2PCDS session establishment success of ICP-2;

718, ICP-2 sends ACK to ICP-3, to inform this IMSP2PCDS session establishment success of ICP-3;

719, ICP-3 sends ACK to ICP-4, to inform this IMSP2PCDS session establishment success of ICP-4.

The signaling diagram of the content distributing service conversation managing method that Fig. 8 provides for the embodiment of the present invention eight.To increase ICP in this IMSP2PCDS session ongoing, technical scheme of the present invention is described in the present embodiment.As shown in Figure 8, the content distributing service conversation managing method of the present embodiment, specifically can comprise as follows:

800, UE, ICP-2 and ICP-3 are carrying out this IMSP2PCDS session;

801, CDSAS determines to increase ICP-4 in this IMSP2PCDS session;

802, CDSAS sends the SIPInvite request of carrying ICP-4 address to S-CSCF;

This SIPInvite asks the 2nd SIPInvite request message be equivalent in above-described embodiment, and the particular content during this SIPInvite asks can with reference to the 2nd SIPInvite request message of the relevant record of above-described embodiment.Here UE can be understood as ICP-1.

803, S-CSCF sends SIPInvite request, to ask this IMSP2PCDS session of setting up between UE and ICP-4 to ICP-4;

Together with in CDSAS inside with this IMSP2PCDS session association existed being by the session between UE and ICP-4, realize ICP-4 being added this IMSP2PCDS session.

804, ICP-4 returns 200OK to S-CSCF;

805, S-CSCF sends 200OK to CDSAS, carries address and the media description information of ICP-4 in this 200OK;

806, CDSAS sends the Re-Invite request of address and the media description information carrying ICP-4 to S-CSCF;

807, S-CSCF sends the Re-Invite request of address and the media description information carrying ICP-4 to UE, and request UE upgrades this IMSP2PCDS session after the ICP-4 newly added;

808, UE returns 200OK to S-CSCF;

809, S-CSCF returns 200OK to CDSAS;

810, CDSAS returns ACK to S-CSCF;

811, S-CSCF returns ACK to ICP-4, to inform that ICP-4 has added this IMSP2PCDS session;

812, CDSAS returns ACK to S-CSCF;

813, S-CSCF returns ACK to UE.

The 200OK of the ACK 808 and 809 of 812 and 813.

Alternatively, can also comprise as follows:

814, CDSAS sends the Re-Invite request of address and the media description information carrying ICP-4 to S-CSCF;

815, S-CSCF sends the Re-Invite request of address and the media description information carrying ICP-4 to ICP-2, and request ICP-2 upgrades this IMSP2PCDS session after newly adding ICP-4;

816, ICP-2 returns 200OK to S-CSCF;

817, S-CSCF sends the Re-Invite request of address and the media description information carrying ICP-4 to ICP-3, and request ICP-3 upgrades this IMSP2PCDS session after newly adding ICP-4;

818, ICP-3 returns 200OK to S-CSCF;

819, S-CSCF returns 200OK to CDSAS;

820, CDSAS returns ACK to S-CSCF;

821, S-CSCF returns ACK to ICP-2;

822, S-CSCF returns ACK to ICP-3.

Adopt the technical scheme of above-described embodiment, adopt CDSAS can be anchored in IMSP2PCDS session, centralized control can be carried out when adding ICP for IMSP2PCDS session, thus strengthen monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of above-described embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

The signaling diagram of the content distributing service conversation managing method that Fig. 9 provides for the embodiment of the present invention nine.To increase ICP in this IMSP2PCDS session ongoing, technical scheme of the present invention is described in the present embodiment.As shown in Figure 9, introduce in the IMSP2PCDS of the present embodiment and have ProxyICP.The content distributing service conversation managing method of the present embodiment, specifically can comprise as follows:

900-902 is identical with above-mentioned 800-802 embodiment illustrated in fig. 8, with reference to the record of above-described embodiment, can not repeat them here in detail.

903, S-CSCF sends SIPInvite request to ProxyICP, carries the address of ICP-4 in this request;

904, ProxyICP sends SIPInvite request, to ask this IMSP2PCDS session of setting up between UE and ICP-4 to ICP-4;

905, ICP-4 returns 200OK to ProxyICP; Address and the media description information of ICP-4 is carried in this 200OK;

906, ProxyICP returns 200OK to S-CSCF; Address and the media description information of ICP-4 is carried in this 200OK;

907-912 is identical with above-mentioned 805-810 embodiment illustrated in fig. 8, with reference to the record of above-described embodiment, can not repeat them here in detail.

913, S-CSCF returns ACK to ProxyICP;

914, ProxyICP returns ACK to ICP-4;

915-916 is identical with above-mentioned 812-813 embodiment illustrated in fig. 8, with reference to the record of above-described embodiment, can not repeat them here in detail.Alternatively, can also comprise as follows:

917, CDSAS sends the Re-Invite request of address and the media description information carrying ICP-4 to S-CSCF;

918, S-CSCF sends the Re-Invite request of address and the media description information carrying ICP-4 to ProxyICP;

919, ProxyICP sends the Re-Invite request of address and the media description information carrying ICP-4 to ICP-2 and ICP-3, and request ICP-2 and ICP-3 upgrades this IMSP2PCDS session after the ICP-4 newly added;

920, ICP-2 and ICP-3 returns 200OK to ProxyICP;

Because ICP-2 with ICP-3 execution step is identical, as shown in Figure 9, explanation of in the present embodiment, ICP-2 and ICP-4 being put together.

921, ProxyICP returns 200OK to S-CSCF;

922, S-CSCF returns 200OK to CDSAS;

923, CDSAS returns ACK to S-CSCF;

924, S-CSCF returns ACK to ProxyICP;

925, ProxyICP returns ACK to ICP-2 and ICP-3;

The signaling diagram of the content distributing service conversation managing method that Figure 10 provides for the embodiment of the present invention ten.To increase ICP in this IMSP2PCDS session ongoing, technical scheme of the present invention is described in the present embodiment.As shown in Figure 10, introduce in the IMSP2PCDS of the present embodiment and have entrance ICP.The content distributing service conversation managing method of the present embodiment, specifically can comprise as follows:

1000-1013 is similar to above-mentioned 800-813 embodiment illustrated in fig. 8, and difference is only: be that UE, ICP-2, ICP-3 and ICP-4 are carrying out this IMSP2PCDS session in the present embodiment; ICP-2 is as entrance ICP, and ICP-2, ICP-3 and ICP-4 form an ICPPool.In the present embodiment, CDSAS determines to increase ICP-5 in this IMSP2PCDS session; And embodiment illustrated in fig. 8ly in this IMSP2PCDS session, increase ICP-4.All the other implementation procedures are all identical, with reference to above-mentioned record embodiment illustrated in fig. 8, can not repeat them here in detail.

Alternatively, can also comprise after 1013 as follows:

1014, CDSAS sends the Re-Invite request of address and the media description information carrying ICP-5 to S-CSCF;

1015, S-CSCF sends the Re-Invite request of address and the media description information carrying ICP-5 to ICP-2;

1016, the Re-Invite request of this address of carrying ICP-5 and media description information is propagated in the ICPPool that ICP-2 is formed at ICP-2, ICP-3 and ICP-4, to inform address and the media description information of the ICP-5 that ICP-2, ICP-3 and ICP-4 newly add, and upgrade this IMSP2PCDS session by ICP-2, ICP-3 and ICP-4;

The Re-Invite that can send this address of carrying ICP-5 and media description information for ICP-2 to ICP-3 particularly asks; This ICP-3 sends the Re-Invite request of this address of carrying ICP-5 and media description information to ICP-4.

1017, ICP-2 returns 200OK to S-CSCF;

1018, S-CSCF returns 200OK to CDSAS;

1019, CDSAS returns ACK to S-CSCF;

1020, S-CSCF returns ACK to ICP-2;

1021, this ACK is propagated, to confirm to upgrade this IMSP2PCDS session in the ICPPool that ICP-2 is formed at ICP-2, ICP-3 and ICP-4.

The signaling diagram of the content distributing service conversation managing method that Figure 11 provides for the embodiment of the present invention 11.To delete ICP in this IMSP2PCDS session ongoing, technical scheme of the present invention is described in the present embodiment.As shown in figure 11, the content distributing service conversation managing method of the present embodiment, specifically can comprise as follows:

1100, UE, ICP-2, ICP-3 and ICP-4 are carrying out this IMSP2PCDS session;

1101, CDSAS determines to delete ICP-3 in this IMSP2PCDS session;

1102, CDSAS sends the Re-Invite request of carrying ICP-3 address to S-CSCF;

This Re-Invite asks the 2nd SIPInvite request message be equivalent in above-described embodiment, and the particular content during this Re-Invite asks can with reference to the 2nd SIPInvite request message of the relevant record of above-described embodiment.Here UE can be understood as ICP-1.

1103, S-CSCF sends Re-Invite request to ICP-3, leaves this IMSP2PCDS session to ask ICP-3;

Particularly, ICP-3 receives Re-Invite request and can arrange media port number, to stop providing media information to UE.

1104, ICP-3 returns 200OK to S-CSCF; Address and the media description information of ICP-3 is carried in this 200OK;

1105, S-CSCF sends the Re-Invite request of address and the media description information carrying ICP-3 to ICP-2 and ICP-4, upgrades this IMSP2PCDS session after request ICP-2 and ICP-4 deletion ICP-3;

1106, ICP-2 and ICP-4 returns 200OK to S-CSCF;

1105 and 1106 is optional step.Because ICP-2 with ICP-4 execution step is identical, as shown in figure 11, explanation of in 1105 and 1106, ICP-2 and ICP-4 being put together.

1107, S-CSCF returns 200OK to CDSAS;

This S-CSCF returns 200OK to CDSAS and returns 200OK for returning ICP-3 in 1104 to S-CSCF.

1108, CDSAS sends the Re-Invite request of address and the media description information carrying ICP-3 to S-CSCF, to ask UE this IMSP2PCDS session of this renewal after deletion ICP-3;

1109, the Re-Invite that S-CSCF sends to UE address and the media description information carrying ICP-3 asks, and informs address and the media description information of the ICP-3 that UE deletes, and upgrades this IMSP2PCDS session by UE;

1110, UE returns 200OK to S-CSCF;

1111, S-CSCF returns 200OK to CDSAS;

1112, CDSAS returns ACK to S-CSCF;

1113, S-CSCF returns ACK to UE;

ACK in 1112 and 1113 responds the 200OK in 1110 and 1111 respectively.

1114, CDSAS returns ACK to S-CSCF;

200OK in ACK 1107 in 1114.

1115, S-CSCF returns ACK to ICP-3;

200OK in ACK 1104 in 1115.

1116, S-CSCF returns ACK to ICP-2 and ICP-4;

200OK in ACK 1106 in 1116.

1117, ICP-3 sends BYE message to S-CSCF;

1118, S-CSCF sends this BYE message to CDSAS;

1119, CDSAS sends 200OK to S-CSCF;

1120, S-CSCF sends 200OK to ICP-3.

1117-1120 is an optional step, and ICP-3 is by initiating BYE message to ask to exit from session completely.

Adopt the technical scheme of above-described embodiment, adopt CDSAS can be anchored in IMSP2PCDS session, for carrying out centralized control when ICP is deleted in IMSP2PCDS session, thus monitoring to IMSP2PCDS session can be strengthened, avoiding P2P business to the abuse of Internet resources, guaranteeing network security.In a word, adopt the technical scheme of above-described embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

The signaling diagram of the content distributing service conversation managing method that Figure 12 provides for the embodiment of the present invention 12.To delete ICP in this IMSP2PCDS session ongoing, technical scheme of the present invention is described in the present embodiment.As shown in figure 12, introduce in the IMSP2PCDS of the present embodiment and have ProxyICP.The content distributing service conversation managing method of the present embodiment, specifically can comprise as follows:

1200-1202 is identical with above-mentioned 1100-1102 embodiment illustrated in fig. 11, with reference to the record of above-described embodiment, can not repeat them here in detail.

1203, S-CSCF sends the RE-Invite request of carrying ICP-3 address to ProxyICP, leaves this IMSP2PCDS session to ask ICP-3;

1204, ProxyICP sends this RE-Invite to ICP-3 and asks, and leaves this IMSP2PCDS session to ask ICP-3;

1205, ICP-3 returns 200OK to ProxyICP;

1206, the Re-Invite that ProxyICP sends to ICP-2 and ICP-4 address and the media description information carrying ICP-3 asks, and informs that the address of the ICP-3 that ICP-2 and ICP-4 deletes and media description information upgrade this IMSP2PCDS session for ICP-2;

1207, ICP-2 and ICP-4 returns 200OK to ProxyICP;

1206 and 1207 is optional step.Because ICP-2 with ICP-4 execution step is identical, as shown in figure 12, explanation of in 1206 and 1207, ICP-2 and ICP-4 being put together.

1208, ProxyICP returns 200OK to S-CSCF;

1209-1216 is identical with above-mentioned 1107-1113 embodiment illustrated in fig. 11, with reference to the record of above-described embodiment, can not repeat them here in detail.

1217, S-CSCF returns ACK to ProxyICP;

1218, ProxyICP returns ACK to ICP-3;

200OK in ACK 1208 in 1217.200OK in ACK 1205 in 1218.

1219, ProxyICP returns ACK to ICP-2 and ICP-4;

200OK in ACK 1207 in 1219.

1220, ICP-3 sends BYE message to ProxyICP;

1221, ProxyICP sends BYE message to S-CSCF;

1222, S-CSCF sends this BYE message to CDSAS;

1223, CDSAS sends 200OK to S-CSCF;

1224, S-CSCF sends 200OK to ProxyICP;

1225, ProxyICP sends 200OK to ICP-3.

1220-1225 is an optional step.

The signaling diagram of the content distributing service conversation managing method that Figure 13 provides for the embodiment of the present invention 13.To delete ICP in this IMSP2PCDS session ongoing, technical scheme of the present invention is described in the present embodiment.As shown in figure 13, introduce in the IMSP2PCDS of the present embodiment and have entrance ICP.The content distributing service conversation managing method of the present embodiment, specifically can comprise as follows:

1300-1311 is similar to above-mentioned correlation step embodiment illustrated in fig. 11, and difference is only: be that UE, ICP-2, ICP-3, ICP-4 and ICP-5 are carrying out this IMSP2PCDS session in the present embodiment; ICP-2 is as entrance ICP, and ICP-2, ICP-3, ICP-4 and ICP-5 form an ICPPool.In the present embodiment, CDSAS determines to delete ICP-5 in this IMSP2PCDS session; And embodiment illustrated in fig. 11ly in this IMSP2PCDS session, delete ICP-3.All the other implementation procedures are all identical, with reference to above-mentioned record embodiment illustrated in fig. 11, can not repeat them here in detail.

After 1311, can also comprise as follows:

1312, CDSAS sends the Re-Invite request of address and the media description information carrying ICP-5 to S-CSCF;

1313, S-CSCF sends the Re-Invite request of address and the media description information carrying ICP-5 to ICP-2;

1314, the Re-Invite request of this address of carrying ICP-5 and media description information is propagated in the ICPPool that ICP-2 is formed at ICP-2, ICP-3 and ICP-4, to inform address and the media description information of the ICP-5 that ICP-2, ICP-3 and ICP-4 delete, and after deletion ICP-5, upgrade this IMSP2PCDS session by ICP-2, ICP-3 and ICP-4;

The specific implementation propagating the Re-Invite request of this address of carrying ICP-5 and media description information in the ICPPool that ICP-2, ICP-3 and ICP-4 are formed can with reference to the record of above-mentioned related embodiment.

1315, ICP-2 returns 200OK to S-CSCF;

Wherein can comprise the 200OK that ICP-2, ICP-3 and ICP-4 return respectively in this 200OK.

1316, S-CSCF returns 200OK to CDSAS;

1317, CDSAS returns ACK to S-CSCF;

1318, S-CSCF returns ACK to ICP-2;

1319, this ACK is propagated, to confirm to upgrade this IMSP2PCDS session in the ICPPool that ICP-2 is formed at ICP-2, ICP-3 and ICP-4.

The signaling diagram of the content distributing service conversation managing method that Figure 14 provides for the embodiment of the present invention 14.To discharge this IMSP2PCDS session ongoing, technical scheme of the present invention is described in the present embodiment.As shown in figure 14, the content distributing service conversation managing method of the present embodiment, specifically can comprise as follows:

1400, UE, ICP-2 and ICP-3 are carrying out this IMSP2PCDS session;

1401, UE sends BYE request to S-CSCF; This BYE carries the mark of this IMSP2PCDS session in asking;

This Bye asks the releasing session request message be equivalent in above-described embodiment, and the particular content during this Bye asks can with reference to the releasing session request message of the relevant record of above-described embodiment.Here UE can be understood as ICP-1.

1402, S-CSCF sends this BYE to CDSAS and asks;

1403, after CDSAS receives the BYE request of UE, when judging that UE is the initiator of this IMSP2PCDS session, this IMSP2PCDS session of release is determined;

1404, CDSAS sends the BYE request of carrying the mark of this IMSP2PCDS session to S-CSCF;

1405, S-CSCF sends this BYE to ICP-2 and asks, this IMSP2PCDS session of request release;

1406, ICP-2 returns 200OK to S-CSCF;

1407, S-CSCF sends this BYE to ICP-3 and asks, this IMSP2PCDS session of request release;

1408, ICP-3 returns 200OK to S-CSCF;

1409, S-CSCF returns 200OK to CDSAS;

1410, CDSAS returns 200OK to S-CSCF;

1411, S-CSCF returns 200OK to UE.

For in above-mentioned Fig. 5-Figure 13, with the 200OK that SIPInvite asks or Re-Invite is corresponding, corresponding ACK must be had to return.And corresponding 200OK is asked for BYE in the present embodiment and following Figure 15-19, need not ACK be returned.

Adopt the technical scheme of above-described embodiment, adopt CDSAS can be anchored in IMSP2PCDS session, centralized control can be carried out when discharging IMSP2PCDS session and deleting, thus strengthen the monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of above-described embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

The signaling diagram of the content distributing service conversation managing method that Figure 15 provides for the embodiment of the present invention 15.To discharge this IMSP2PCDS session ongoing, technical scheme of the present invention is described in the present embodiment.As shown in figure 15, the content distributing service conversation managing method of the present embodiment, specifically can comprise as follows:

1500, UE, ICP-2 and ICP-3 are carrying out this IMSP2PCDS session;

1501, CDSAS determines this IMSP2PCDS session of release;

Such as when the network is congested, CDSAS determines that the session that this IMSP2PCDS session of release is higher priority provides resource.

1502, CDSAS sends the BYE request of carrying the mark of this IMSP2PCDS session to S-CSCF;

1503, S-CSCF sends this BYE to ICP-2 and asks, this IMSP2PCDS session of request release;

1504, ICP-2 returns 200OK to S-CSCF;

1505, S-CSCF sends this BYE to ICP-3 and asks, this IMSP2PCDS session of request release;

1506, ICP-3 returns 200OK to S-CSCF;

1507, S-CSCF returns 200OK to CDSAS;

1508, CDSAS sends the BYE request of carrying the mark of this IMSP2PCDS session to S-CSCF;

1509, S-CSCF sends the BYE request of carrying the mark of this IMSP2PCDS session to UE;

1510, UE returns 200OK to S-CSCF;

1511, S-CSCF returns 200OK to CDSAS.

The present embodiment and above-mentioned difference embodiment illustrated in fig. 14 are only: the above-mentioned BYE being UE initiatively initiates embodiment illustrated in fig. 14 asks, and the present embodiment is the BYE request initiatively initiated by CDSAC.All the other implementation procedures are similar.

The signaling diagram of the content distributing service conversation managing method that Figure 16 provides for the embodiment of the present invention 16.To discharge this IMSP2PCDS session ongoing, technical scheme of the present invention is described in the present embodiment.As shown in figure 16, introduce in the IMSP2PCDS of the present embodiment and have ProxyICP.The content distributing service conversation managing method of the present embodiment, specifically can comprise as follows:

1600-1604 with above-mentioned embodiment illustrated in fig. 14 in 1400-1404 identical, with reference to above-mentioned record embodiment illustrated in fig. 14, can not repeat them here in detail.

1605, S-CSCF sends the BYE request of carrying the mark of this IMSP2PCDS session to ProxyICP, this IMSP2PCDS session of request release;

1606, ProxyICP sends this BYE to ICP-2 and ICP3 and asks, this IMSP2PCDS session of request release;

1607, ICP-2 and ICP3 returns 200OK to ProxyICP;

In the present embodiment, because ICP-2 with ICP-4 execution step is identical, therefore explanation that ICP-2 and ICP-4 is put together.

1608, ProxyICP returns 200OK to S-CSCF;

1609-1611 with above-mentioned embodiment illustrated in fig. 14 in 1409-1411 identical, with reference to above-mentioned record embodiment illustrated in fig. 14, can not repeat them here in detail.

The signaling diagram of the content distributing service conversation managing method that Figure 17 provides for the embodiment of the present invention 17.To discharge this IMSP2PCDS session ongoing, technical scheme of the present invention is described in the present embodiment.As shown in figure 17, introduce in the IMSP2PCDS of the present embodiment and have ProxyICP.The content distributing service conversation managing method of the present embodiment, specifically can comprise as follows:

1700-1702 with above-mentioned embodiment illustrated in fig. 15 in 1500-1502 identical, with reference to above-mentioned record embodiment illustrated in fig. 15, can not repeat them here in detail.

1703-1706 with above-mentioned embodiment illustrated in fig. 16 in 1605-1608 identical, with reference to above-mentioned record embodiment illustrated in fig. 16, can not repeat them here in detail.

1707-1711 with above-mentioned embodiment illustrated in fig. 15 in 1507-1511 identical, with reference to above-mentioned record embodiment illustrated in fig. 15, can not repeat them here in detail.

The present embodiment and above-mentioned difference embodiment illustrated in fig. 15 are only: the above-mentioned BYE being UE initiatively initiates embodiment illustrated in fig. 15 asks, and the present embodiment is the BYE request initiatively initiated by CDSAC.All the other implementation procedures are similar.

The signaling diagram of the content distributing service conversation managing method that Figure 18 provides for the embodiment of the present invention 18.To discharge this IMSP2PCDS session ongoing, technical scheme of the present invention is described in the present embodiment.As shown in figure 18, introduce in the IMSP2PCDS of the present embodiment and have entrance ICP.The content distributing service conversation managing method of the present embodiment, specifically can comprise as follows:

1800-1805 with above-mentioned embodiment illustrated in fig. 14 in 1400-1405 identical, with reference to above-mentioned record embodiment illustrated in fig. 14, can not repeat them here in detail.

1806, the BYE request of carrying the mark of this IMSP2PCDS session is propagated in the ICPPool that ICP-2 is formed at ICP-2, ICP-3 and ICP-4, to inform that ICP-2, ICP-3 and ICP-4 discharge this IMSP2PCDS session;

The specific implementation propagating the BYE request of carrying the mark of this IMSP2PCDS session in the ICPPool that ICP-2, ICP-3 and ICP-4 are formed can with reference to the record of above-mentioned related embodiment.

1807, ICP-2 returns 200OK to S-CSCF;

Wherein can comprise the 200OK that ICP-2, ICP-3 and ICP-4 return respectively in this 200OK.Alternatively, ICP-2, ICP-3 and ICP-4 can return 200OK respectively to S-CSCF.And CDSAS is returned to respectively by S-CSCF in follow-up.

1808, S-CSCF returns 200OK to CDSAS;

1809, CDSAS returns 200OK to S-CSCF;

1810, S-CSCF returns 200OK to UE.

The signaling diagram of the content distributing service conversation managing method that Figure 19 provides for the embodiment of the present invention 19.To discharge this IMSP2PCDS session ongoing, technical scheme of the present invention is described in the present embodiment.As shown in figure 19, introduce in the IMSP2PCDS of the present embodiment and have entrance ICP.The content distributing service conversation managing method of the present embodiment, specifically can comprise as follows:

1900-1902 with above-mentioned embodiment illustrated in fig. 15 in 1500-1502 identical, with reference to above-mentioned record embodiment illustrated in fig. 15, can not repeat them here in detail.

1903-1906 with above-mentioned embodiment illustrated in fig. 18 in 1805-1808 identical, with reference to above-mentioned record embodiment illustrated in fig. 18, can not repeat them here in detail.

1907-1910 with above-mentioned embodiment illustrated in fig. 15 in 1508-1511 identical, with reference to above-mentioned record embodiment illustrated in fig. 15, can not repeat them here in detail.

One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.

The structural representation of the S-CSCF equipment that Figure 20 provides for the embodiment of the present invention 20.As shown in figure 20, the S-CSCF equipment of the present embodiment, comprising: the first receiver module 10, sending module 11, second receiver module 12 and set up module 13.

Wherein the first receiver module 10 is for receiving a SIPInvite request message of UE transmission, carries the address of CDSAS in a SIPInvite request message.Sending module 11 is connected with the first receiver module 10, sending module 11 is for the address according to the CDSAS in a SIPInvite request message of the first receiver module 10 reception, CDSAS to correspondence send first receiver module 10 receive a SIPInvite request message, for CDSAS according to a SIPInvite request message be this IMSP2PCDS session selection ICP.The SIPInvite request message carrying the address of ICP that second receiver module 12 sends for receiving CDSAS.Set up module 13, for the SIPInvite request message carrying the address of ICP received according to receiver module 12, set up this IMSP2PCDS session between UE and ICP.

The S-CSCF equipment of the present embodiment, identical with the realization mechanism of above-mentioned related method embodiment by adopting above-mentioned module to realize content distributing service session management, with reference to the record of above-mentioned related method embodiment, can not repeat them here in detail.

The S-CSCF equipment of the present embodiment, CDSAS can be anchored in IMSP2PCDS session by adopting above-mentioned module, the centralized control setting up IMSP2PCDS conversation procedure can be realized, thus strengthen monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of the present embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

The structural representation of the S-CSCF equipment that Figure 21 provides for the embodiment of the present invention 21.As shown in figure 21, the S-CSCF equipment of the present embodiment, on above-mentioned basis embodiment illustrated in fig. 20, is wherein set up module 13 and is comprised: the first transmitting element 131 and the first receiving element 132.

Wherein the first transmitting element 131 is for the address according to ICP, sends a SIPInvite request message, to ask this IMSP2PCDS session of setting up between UE and ICP to ICP.The first sip response message that first receiving element 132 returns for receiving ICP; Address and the media description information of ICP is carried in first sip response message; First sip response message is the response message that ICP reception the one SIPInvite request message returns.

Alternatively, this first transmitting element 131 is also connected with the first receiving element 132, and the first transmitting element 131 is also for sending the first sip response message that the first receiving element 132 receives to CDSAS.First receiving element 132 also for receiving the first sip response message that CDSAS returns, to determine that CDSAS receives the first sip response message.First transmitting element 131 also for sending the first sip response message to UE, to inform that UE sets up address and the media description information of this IMSP2PCDS session ICP.First receiving element 132 also for receiving the response message of the first sip response message that UE sends, to determine that UE receives the first sip response message.First transmitting element 131 is also for forwarding the response message of the first sip response message that UE sends to CDSAS.First receiving element 132 also for receiving the response message of the first sip response message that CDSAS returns, to determine that CDSAS receives the response message of the first sip response message.First transmitting element 131 also for returning the response message of the first sip response message to ICP, to confirm to set up this IMSP2PCDS session.

Alternatively, in the present embodiment, the second receiver module 12 receive CDSAS send carry the address that can also carry ProxyICP in a SIPInvite request message of the address of ICP; Now set up in module 13 and also can comprise the first transmitting element 131 and the first receiving element 132.First transmitting element 131, for according to the address of ICP and the address of ProxyICP, sends a SIPInvite request message, to ask this IMSP2PCDS session of setting up between UE and ICP by ProxyICP to ICP.The first sip response message that first receiving element 132 is sent by ProxyICP for receiving ICP, carry ICP address and media description information in first sip response message, the first sip response message is the response message that ICP reception the one SIPInvite request message returns.

Further alternatively, now the first transmitting element 131 also for sending the first sip response message to CDSAS.First receiving element 132 also for receiving the first sip response message that CDSAS returns, to determine that CDSAS receives the first sip response message.First transmitting element 131 also for forward to UE first receiving element 132 receive the first sip response message, to inform that UE sets up address and the media description information of this IMSP2PCDS session ICP.First receiving element 132 also for receiving the response message of the first sip response message that UE sends, to determine that UE receives the first sip response message.First transmitting element 131 is also for forwarding the response message of the first sip response message that UE sends to CDSAS.First receiving element 132 also for receiving the response message of the first sip response message that CDSAS returns, to determine that CDSAS receives the response message of the first sip response message.First transmitting element 131 also for returning the response message of the first sip response message to ProxyICP, returns the response message of the first sip response message to ICP for ProxyICP, to confirm to set up this IMSP2PCDS session.

Alternatively, in the present embodiment, the second receiver module 12 receives the ICP carried in the address of ICP in a SIPInvite request message of CDSAS transmission and is specially entrance ICP, namely carries the address of entrance ICP in a SIPInvite request message.The SIPInvite request message carrying the address of entrance ICP that the second now corresponding receiver module 12 sends specifically for receiving CDSAS.Set up the SIPInvite request message that carry the address of entrance ICP of module 13 specifically for receiving according to the second receiver module 12, this IMSP2PCDS session between at least one ICP setting up UE and comprise entrance ICP.

Now, alternatively, setting up module 13 and also can comprise the first transmitting element 131 and the first receiving element 132 in the present embodiment.First transmitting element 131 is for the address according to the entrance ICP in a SIPInvite request message, a SIPInvite request message is sent to entrance ICP, to ask entrance ICP to propagate a SIPInvite request message between at least one ICP comprising entrance ICP, to ask this IMSP2PCDS session of setting up between UE and at least one ICP.The first sip response message that first receiving element 132 is returned by entrance ICP for receiving at least one ICP or at least one ICP; The sip response message of at least one ICP address and media description information is carried in first sip response message; First sip response message is the response message that ICP reception the one SIPInvite request message returns.

Further, alternatively, the first transmitting element 131 is now also for sending the first sip response message to CDSAS.First receiving element 132 also for receiving the first sip response message that CDSAS returns, to determine that CDSAS receives the first sip response message.First transmitting element 131 also for sending the first sip response message to UE, to inform that UE sets up address and the media description information of at least one ICP of this IMSP2PCDS session.First receiving element 132 also for receiving the response message of the first sip response message that UE sends, to determine that UE receives the first sip response message.First transmitting element 131 is also for forwarding the response message of the first sip response message that UE sends to CDSAS.First receiving element 132 also for receiving the response message of the first sip response message that CDSAS returns, to determine that CDSAS receives the response message of the first sip response message.First transmitting element 131 is also for returning the response message of the first sip response message to entrance ICP, between at least one ICP, the response message of the first sip response message is propagated, to confirm this IMSP2PCDS session of setting up between UE and at least one ICP for entrance ICP.

Alternatively, the second receiver module 12 in the S-CSCF equipment of the present embodiment is also for when needs add or delete an ICP in this IMSP2PCDS session, receive the 2nd SIPInvite request message that CDSAS sends, in the 2nd SIPInvite request message, carry the address of the ICP that needs add or needs are deleted.Now sending module 11 is connected with the second receiver module 12, the two SIPInvite request message of sending module 11 also for receiving according to the second receiver module 12 sends the 2nd SIPInvite request message to the ICP that needs add or needs are deleted, to ask to need the ICP added or needs are deleted add or leave this IMSP2PCDS session.

Further alternatively, the first receiver module 10 in the S-CSCF equipment of the present embodiment also needs to add or the second sip response message of ICP transmission that needs are deleted for receiving.Sending module 11 is also for forwarding the second sip response message that the first receiver module 10 receives to CDSAS.Second receiver module 12 also for receiving the SIPRe-Invite request message that CDSAS sends, carries address and the media description information of the ICP that needs add or needs are deleted in this SIPRe-Invite request message.Sending module 11 also for forward to UE second receiver module 12 receive carry SIPRe-Invite request message, with add or deletes needs add or needs deletion ICP after, upgrade this IMSP2PCDS session.

Alternatively, sending module 11 in the S-CSCF equipment of the present embodiment is also for sending the SIPRe-Invite request message that the second receiver module 12 receives to the ICP carrying out this IMSP2PCDS session with UE, with add or delete needs add or needs delete ICP after, upgrade this IMSP2PCDS session.

Alternatively, in above-described embodiment, the second receiver module 12 receives in the 2nd SIPInvite request message that CDSAS sends to be needed to add or the address of ICP of needs deletion except carrying, and can also carry the address of ProxyICP.Now sending module 11 is for the address according to ProxyICP, the 2nd SIPInvite request message is sent to ProxyICP, add as required for ProxyICP or the address of ICP that needs are deleted, the 2nd SIPInvite request message is sent, to ask to need the ICP added or needs are deleted add or leave this IMSP2PCDS session to the ICP that needs add or needs are deleted.

Alternatively, now the first receiver module 10 also needs to add or second sip response message that sent by ProxyICP of ICP of needs deletion for receiving accordingly; Address and the media description information of the ICP that needs add or needs are deleted is carried in second sip response message.Sending module 11 is also for forwarding the second sip response message that the first receiver module 10 receives to CDSAS.Second receiver module 12 also for receiving the SIPRe-Invite request message that CDSAS sends, carries address and the media description information of the ICP that needs add or needs are deleted in SIPRe-Invite request message.Sending module 11 also for forward to UE or ICP second receiver module 12 receive SIPRe-Invite request message, with add or deletes needs add or needs deletion ICP after, upgrade this IMSP2PCDS session.

Alternatively, the second receiver module 12 in above-described embodiment receives the address that can also carry entrance ICP in the SIPRe-Invite request message of CDSAS transmission.Or the address of entrance ICP can not be carried in this Re-Invite request message, by the address acquisition ICP address setting up the entrance ICP that IMSP2PCDS session S-CSCF has recorded before, sending module 11 is also for sending SIPRe-Invite request message to entrance ICP, for entrance ICP add or delete needs add or needs delete ICP after at least one ICP between propagate SIPRe-Invite request message, with add or delete needs add or needs delete ICP after, upgrade this IMSP2PCDS session; At least one ICP comprises entrance ICP.

Alternatively, release module 14 can also be comprised in the S-CSCF equipment of the present embodiment.Second receiver module 12 also for when discharging this IMSP2PCDS session ongoing, receives the releasing session request message carrying this IMSP2PCDS session identification that CDSAS sends.Release module 14 is connected with the second receiver module 12, and release module 14 discharges this IMSP2PCDS session for the releasing session request message received according to the second receiver module 12.

Alternatively, this release module 14 can comprise the second transmitting element 141 and the second receiving element 142.Second transmitting element 141 is connected with the second receiver module 12, the releasing session request message of the second transmitting element 141 for receiving according to the second receiver module 12, send the releasing session request message carrying this IMSP2PCDS session identification to ICP, discharge this IMSP2PCDS session to ask ICP.The releasing session response message that second receiving element 142 sends for receiving ICP, releasing session response message is that ICP receives releasing session request message and the response message returned after discharging this IMSP2PCDS session.

Alternatively, when also carrying the address of ProxyICP in the releasing session request message of the second receiver module 12 reception of technique scheme, release module 14 also can comprise the second transmitting element 141 and the second receiving element 142.Second transmitting element 141 is connected with the second receiver module 12, second transmitting element 141 is for the address according to the ProxyICP in the releasing session request message of the second receiver module 12 reception, the releasing session request message carrying this IMSP2PCDS session identification is sent to ProxyICP, send to the ICP carrying out this IMSP2PCDS session the releasing session request message carrying this IMSP2PCDS session identification for ProxyICP, discharge this IMSP2PCDS session to ask the ICP carrying out this IMSP2PCDS session; .The releasing session response message that receiving element 142 is sent by ProxyICP for receiving ICP, releasing session response message is that ICP receives releasing session request message and the response message returned after discharging this IMSP2PCDS session.

Alternatively, when also carrying the address of entrance ICP in the releasing session request message of the second receiver module 12 reception of technique scheme, release module 14 also can comprise the second transmitting element 141 and the second receiving element 142.Second transmitting element 141 is connected with the second receiver module 12, second transmitting element 141 is for the address according to the entrance ICP in the releasing session request message of the second receiver module 12 reception, the releasing session request message carrying this IMSP2PCDS session identification is sent to entrance ICP, to ask entrance ICP to propagate releasing session request message between at least one ICP comprising entrance ICP, discharge this IMSP2PCDS session to ask at least one ICP.The releasing session response message that receiving element 142 is sent by entrance ICP for receiving at least one ICP or at least one ICP, releasing session response message is that at least one ICP receives releasing session request message and the response message returned after discharging this IMSP2PCDS session.

Alternatively, in the alternatives of above-described embodiment the first receiver module 10 also for receive at the second receiver module 11 CDSAS send carry the releasing session request message of this IMSP2PCDS session identification before, receive UE send the releasing session request message carrying this IMSP2PCDS session identification.Sending module 11, also for forwarding the releasing session request message carrying this IMSP2PCDS session identification that the first receiver module 10 receives to CDSAS, asks this IMSP2PCDS session of release to be determined by CDSAS whether UE has permission.

Alternatively, the second transmitting element 141 in the alternatives of above-described embodiment in release module 14 also for sending the releasing session request message carrying this IMSP2PCDS session identification to UE, discharges this IMSP2PCDS session to ask UE.Second receiving element 142 is also for receiving the releasing session response message that UE sends, and releasing session response message is that UE receives releasing session request message and the response message returned after discharging this IMSP2PCDS session.

Alternatively, carry IMSP2PCDS sign, the mark in ICP pond, the media description information of IMSP2PCDS session in the SIPInvite request message in above-described embodiment and require one or more of parameter information of the ICP participating in session.

Describe plurality of optional ground technical scheme in the S-CSCF equipment of the present embodiment, in practical application, above-mentioned plurality of optional technical scheme can form embodiment separately, compound mode capable of being combined arbitrarily also can be adopted to form embodiment, repeat no more in detail.

The S-CSCF equipment of the present embodiment, CDSAS can be anchored in IMSP2PCDS session by adopting above-mentioned module, can realize setting up, managing and discharge the centralized control of IMSP2PCDS conversation procedure, thus strengthen monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of the present embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

The structural representation of the CDSAS equipment that Figure 22 provides for the embodiment of the present invention 22.As shown in figure 22, the CDSAS equipment of the present embodiment comprises: receiver module 20, selection module 21 and sending module 22.

The wherein SIPInvite request message that sent by S-CSCF for receiving UE of receiver module 20.Selecting module 21 to be connected with receiver module 20, selecting module 21 for according to a SIPInvite request message being this IMSP2PCDS session selection ICP.Sending module 22 is connected with selection module 21, sending module 22 is for sending a SIPInvite request message of the address of carrying the ICP selecting module 21 to select to S-CSCF, for S-CSCF according to a SIPInvite request message, set up this IMSP2PCDS session between UE and ICP.

The CDSAS equipment of the present embodiment, identical with the realization mechanism of above-mentioned related method embodiment by adopting above-mentioned module to realize content distributing service session management, with reference to the record of above-mentioned related method embodiment, can not repeat them here in detail.

The CDSAS equipment of the present embodiment, CDSAS can be anchored in IMSP2PCDS session by adopting above-mentioned module, the centralized control setting up IMSP2PCDS conversation procedure can be realized, thus strengthen monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of the present embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

Alternatively, in CDSAS equipment in above-described embodiment, sending module 22 is also for when needs add or delete an ICP in this IMSP2PCDS session, the 2nd SIPInvite request message is sent to S-CSCF, the address of the ICP that needs add or needs are deleted is carried in 2nd SIPInvite request message, the 2nd SIPInvite request message is sent according to the 2nd SIPInvite request message to the ICP that needs add or needs are deleted, to ask to need the ICP added or needs are deleted add or leave this IMSP2PCDS session for S-CSCF.

Alternatively, in CDSAS equipment in above-described embodiment, the address of ProxyICP is also carried in the 2nd SIPInvite request message that sending module 22 sends, for the address of S-CSCF according to ProxyICP, the 2nd SIPInvite request message is sent to ProxyICP, add as required for ProxyICP or the address of ICP that needs are deleted, the 2nd SIPInvite request message is sent, to ask to need the ICP added or needs are deleted add or leave this IMSP2PCDS session to the ICP that needs add or needs are deleted.

Further, sending module 22 is also for sending SIPRe-Invite request message to S-CSCF alternatively, address and the media description information of the ICP that needs add or needs are deleted is carried in SIPRe-Invite request message, SIPRe-Invite request message is forwarded to UE or ICP for S-CSCF, with add or delete needs add or needs delete ICP after, upgrade this IMSP2PCDS session.

Alternatively, in CDSAS equipment in above-described embodiment, sending module 22 is also for when discharging this IMSP2PCDS session ongoing, send the releasing session request message carrying this IMSP2PCDS session identification to S-CSCF, discharge this IMSP2PCDS session for S-CSCF according to releasing session request message.

Further, the address of ProxyICP is also carried in the releasing session request message that sending module 22 sends alternatively, for the address of S-CSCF according to ProxyICP, the releasing session request message carrying this IMSP2PCDS session identification is sent to ProxyICP, send to the ICP carrying out this IMSP2PCDS session the releasing session request message carrying this IMSP2PCDS session identification for ProxyICP, discharge this IMSP2PCDS session to ask the ICP carrying out this IMSP2PCDS session.

Further, the address of entrance ICP is also carried in the releasing session request message that sending module 22 sends alternatively, for the address of S-CSCF according to entrance ICP, the releasing session request message carrying this IMSP2PCDS session identification is sent to entrance ICP, to ask entrance ICP to propagate releasing session request message between at least one ICP comprising entrance ICP, discharge this IMSP2PCDS session to ask at least one ICP.

Alternatively, in the CDSAS equipment in above-described embodiment, determination module can also be comprised.Receiver module 20 also for before sending to S-CSCF at sending module 22 and carrying the releasing session request message of this IMSP2PCDS session identification, receives the releasing session request message carrying this IMSP2PCDS session identification that sent by S-CSCF of UE.Usually the mark of UE can be carried in this releasing session request message.Determination module is connected with receiver module 20, and determination module has permission this IMSP2PCDS session of request release for the promoter UE of the releasing session request message determined receiver module 20 and receive.

Alternatively, carry IMSP2PCDS sign, the mark in ICP pond, the media description information of IMSP2PCDS session in a SIPInvite request message and require one or more of parameter information of the ICP participating in session.

The CDSAS equipment of above-described embodiment, identical with the realization mechanism of above-mentioned related method embodiment by adopting above-mentioned module to realize content distributing service session management, with reference to the record of above-mentioned related method embodiment, can not repeat them here in detail.

The CDSAS equipment of above-described embodiment, CDSAS can be anchored in IMSP2PCDS session by adopting above-mentioned module, can realize setting up, managing and discharge the centralized control of IMSP2PCDS conversation procedure, thus strengthen monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of the present embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

The structural representation of the content distributing service conversation management system that Figure 23 provides for the embodiment of the present invention 23.As shown in figure 23, the content distributing service conversation management system of the present embodiment comprises S-CSCF equipment 30 and CDSAS equipment 40.S-CSCF equipment 30 and CDSAS equipment 40 communicate to connect.

Wherein the S-CSCF equipment 30 of the present embodiment can adopt the S-CSCF equipment of above-mentioned Figure 20 or 21 illustrated embodiments.CDSAS equipment 40 can adopt above-mentioned embodiment illustrated in fig. 22 or its expansion embodiment CDSAS equipment.

The S-CSCF equipment 30 of the present embodiment is by adopting the S-CSCF equipment of above-mentioned Figure 20 or 21 illustrated embodiments, and CDSAS equipment 40 is by adopting the equipment of above-mentioned Figure 22 or its expansion embodiment.And by adopting the specific implementation process implementation content distributing service session management of content distributing service conversation managing method embodiment shown in Fig. 1-Figure 19, with reference to the record of above-mentioned related embodiment, can not repeat them here in detail.

The content distributing service conversation management system of the present embodiment, CDSAS can be anchored in IMSP2PCDS session by adopting S-CSCF equipment 30 and CDSAS equipment 40, can realize setting up, managing and discharge the centralized control of IMSP2PCDS conversation procedure, thus strengthen monitoring to IMSP2PCDS session, avoid P2P business to the abuse of Internet resources, guarantee network security.In a word, adopt the technical scheme of the present embodiment, effectively can improve the efficiency of management to IMSP2PCDS session.

Device embodiment described above is only schematic, the unit wherein illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed at least two network element.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying performing creative labour, are namely appreciated that and implement.

Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims

1. a content distributing service conversation managing method, is applied in IM CN subsystem point-to-point content distribution business, it is characterized in that, comprising:

2. method according to claim 1, it is characterized in that, according to described described first Session initiation Protocol invite request message of carrying the address of described IM CN subsystem point-to-point content distribution business peer-entities, set up this IM CN subsystem point-to-point content distribution service conversation between described subscriber equipment and described IM CN subsystem point-to-point content distribution business peer-entities, comprising:

According to the address of described IM CN subsystem point-to-point content distribution business peer-entities, described first Session initiation Protocol invite request message is sent, to ask to set up this IM CN subsystem point-to-point content distribution service conversation between described subscriber equipment and described IM CN subsystem point-to-point content distribution business peer-entities to described IM CN subsystem point-to-point content distribution business peer-entities;

Receive the first Session initiation Protocol response message that described IM CN subsystem point-to-point content distribution business peer-entities returns; Address and the media description information of described IM CN subsystem point-to-point content distribution business peer-entities is carried in described first Session initiation Protocol response message; Described first Session initiation Protocol response message is the response message that the described first Session initiation Protocol invite request message of described IM CN subsystem point-to-point content distribution business peer-entities reception returns.

3. method according to claim 1, is characterized in that, also carries the address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities in described first Session initiation Protocol invite request message;

According to described described first Session initiation Protocol invite request message of carrying the address of described IM CN subsystem point-to-point content distribution business peer-entities, set up this IM CN subsystem point-to-point content distribution service conversation between described subscriber equipment and described IM CN subsystem point-to-point content distribution business peer-entities, comprising:

According to address and the described address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities of described IM CN subsystem point-to-point content distribution business peer-entities, described first Session initiation Protocol invite request message is sent to described IM CN subsystem point-to-point content distribution business peer-entities by described IM CN subsystem point-to-point content distribution business peer-entities of acting on behalf of, to ask this IM CN subsystem point-to-point content distribution service conversation set up between described subscriber equipment and described IM CN subsystem point-to-point content distribution business peer-entities,

Receive described IM CN subsystem point-to-point content distribution business peer-entities by described the first Session initiation Protocol response message acted on behalf of IM CN subsystem point-to-point content distribution business peer-entities and send, carry described IM CN subsystem point-to-point content distribution business peer-entities address and media description information in described first Session initiation Protocol response message, described first Session initiation Protocol response message is the response message that the described first Session initiation Protocol invite request message of described IM CN subsystem point-to-point content distribution business peer-entities reception returns.

4. method according to claim 1, is characterized in that, described IM CN subsystem point-to-point content distribution business peer-entities is entrance IM CN subsystem point-to-point content distribution business peer-entities;

Receive the described first Session initiation Protocol invite request message of carrying the address of described IM CN subsystem point-to-point content distribution business peer-entities that described content distributing service application server sends, comprising: receive the described first Session initiation Protocol invite request message of carrying the address of described entrance IM CN subsystem point-to-point content distribution business peer-entities that described content distributing service application server sends;

According to described described first Session initiation Protocol invite request message of carrying the address of described IM CN subsystem point-to-point content distribution business peer-entities, set up this IM CN subsystem point-to-point content distribution service conversation between described subscriber equipment and described IM CN subsystem point-to-point content distribution business peer-entities, comprise: according to described described first Session initiation Protocol invite request message of carrying the address of described entrance IM CN subsystem point-to-point content distribution business peer-entities, this IM CN subsystem point-to-point content distribution service conversation between at least one the IM CN subsystem point-to-point content distribution business peer-entities set up described subscriber equipment and comprise described entrance IM CN subsystem point-to-point content distribution business peer-entities.

5. method according to claim 4, it is characterized in that, according to described described first Session initiation Protocol invite request message of carrying the address of described entrance IM CN subsystem point-to-point content distribution business peer-entities, this IM CN subsystem point-to-point content distribution service conversation between at least one the IM CN subsystem point-to-point content distribution business peer-entities set up described subscriber equipment and comprise described entrance IM CN subsystem point-to-point content distribution business peer-entities, comprising:

According to the address of described entrance IM CN subsystem point-to-point content distribution business peer-entities, described first Session initiation Protocol invite request message is sent to described entrance IM CN subsystem point-to-point content distribution business peer-entities, between at least one the IM CN subsystem point-to-point content distribution business peer-entities comprising described entrance IM CN subsystem point-to-point content distribution business peer-entities, described first Session initiation Protocol invite request message is propagated to ask described entrance IM CN subsystem point-to-point content distribution business peer-entities, to ask this IM CN subsystem point-to-point content distribution service conversation set up between described subscriber equipment and at least one IM CN subsystem point-to-point content distribution business peer-entities described,

The first Session initiation Protocol response message that described in receiving, at least one IM CN subsystem point-to-point content distribution business peer-entities or at least one IM CN subsystem point-to-point content distribution business peer-entities described are returned by described entrance IM CN subsystem point-to-point content distribution business peer-entities; Described at least one IM CN subsystem point-to-point content distribution business peer-entities address and media description information is carried in described first Session initiation Protocol response message; Described first Session initiation Protocol response message is the response message that the described first Session initiation Protocol invite request message of described IM CN subsystem point-to-point content distribution business peer-entities reception returns.

6. method according to claim 1, is characterized in that, also comprises:

When needs add or delete an IM CN subsystem point-to-point content distribution business peer-entities in this IM CN subsystem point-to-point content distribution service conversation, receive the second Session initiation Protocol invite request message that described content distributing service application server sends, in described second Session initiation Protocol invite request message, carry the address of the IM CN subsystem point-to-point content distribution business peer-entities that needs add or needs are deleted;

According to described second Session initiation Protocol invite request message to described needs add or needs delete IM CN subsystem point-to-point content distribution business peer-entities send described second Session initiation Protocol invite request message, add to ask described needs or needs deletion IM CN subsystem point-to-point content distribution business peer-entities add or leave this IM CN subsystem point-to-point content distribution service conversation.

7. method according to claim 6, is characterized in that, also comprises:

Receive the second Session initiation Protocol response message of the IM CN subsystem point-to-point content distribution business peer-entities transmission that described needs add or needs are deleted;

And forward described second Session initiation Protocol response message to described content distributing service application server;

The Session initiation Protocol receiving the transmission of described content distributing service application server re-invites request message, and described Session initiation Protocol re-invites in request message the address and media description information of carrying the IM CN subsystem point-to-point content distribution business peer-entities that described needs add or needs are deleted;

Forward described Session initiation Protocol to described subscriber equipment and re-invite request message, with add or delete described needs add or needs delete IM CN subsystem point-to-point content distribution business peer-entities after, upgrade this IM CN subsystem point-to-point content distribution service conversation.

8. method according to claim 7, is characterized in that, also comprises:

Send described Session initiation Protocol to the IM CN subsystem point-to-point content distribution business peer-entities carrying out this IM CN subsystem point-to-point content distribution service conversation with described subscriber equipment and re-invite request message, with add or delete described needs add or needs delete IM CN subsystem point-to-point content distribution business peer-entities after, upgrade this IM CN subsystem point-to-point content distribution service conversation.

9. method according to claim 7, is characterized in that, also comprises:

Send described Session initiation Protocol to entrance IM CN subsystem point-to-point content distribution business peer-entities and re-invite request message, propagate described Session initiation Protocol for described entrance IM CN subsystem point-to-point content distribution business peer-entities and re-invite request message adding or delete between at least one the IM CN subsystem point-to-point content distribution business peer-entities after described needs add or needs are deleted IM CN subsystem point-to-point content distribution business peer-entities, with add or delete described needs add or needs delete IM CN subsystem point-to-point content distribution business peer-entities after, upgrade this IM CN subsystem point-to-point content distribution service conversation, at least one IM CN subsystem point-to-point content distribution business peer-entities described comprises described entrance IM CN subsystem point-to-point content distribution business peer-entities.

10. method according to claim 6, is characterized in that, also carries the address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities in described second Session initiation Protocol invite request message;

Send described second Session initiation Protocol invite request message according to described second Session initiation Protocol invite request message to the IM CN subsystem point-to-point content distribution business peer-entities that described needs add or needs are deleted, comprising:

According to the described address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities, described second Session initiation Protocol invite request message is sent to described IM CN subsystem point-to-point content distribution business peer-entities of acting on behalf of, for the described address acting on behalf of the IM CN subsystem point-to-point content distribution business peer-entities that IM CN subsystem point-to-point content distribution business peer-entities adds according to described needs or needs are deleted, described second Session initiation Protocol invite request message is sent to the IM CN subsystem point-to-point content distribution business peer-entities that described needs add or needs are deleted, add to ask described needs or needs delete IM CN subsystem point-to-point content distribution business peer-entities add or leave this IM CN subsystem point-to-point content distribution service conversation.

11. methods according to claim 10, is characterized in that, also comprise:

Receive described needs add or needs delete IM CN subsystem point-to-point content distribution business peer-entities by described act on behalf of IM CN subsystem point-to-point content distribution business peer-entities send the second Session initiation Protocol response message; Address and the media description information of the IM CN subsystem point-to-point content distribution business peer-entities that described needs add or needs are deleted is carried in described second Session initiation Protocol response message;

Described second Session initiation Protocol response message is forwarded to described content distributing service application server;

Forward described Session initiation Protocol to described subscriber equipment or described IM CN subsystem point-to-point content distribution business peer-entities and re-invite request message, with add or delete described needs add or needs delete IM CN subsystem point-to-point content distribution business peer-entities after, upgrade this IM CN subsystem point-to-point content distribution service conversation.

12. methods according to claim 1, is characterized in that, also comprise:

When discharging this IM CN subsystem point-to-point content distribution service conversation ongoing, receive the releasing session request message carrying this IM CN subsystem point-to-point content distribution service conversation mark that described content distributing service application server sends;

According to described releasing session request message release this IM CN subsystem point-to-point content distribution service conversation described.

13. methods according to claim 12, is characterized in that, according to described releasing session request message release this IM CN subsystem point-to-point content distribution service conversation described, comprising:

According to described releasing session request message, send the described releasing session request message carrying this IM CN subsystem point-to-point content distribution service conversation mark to described IM CN subsystem point-to-point content distribution business peer-entities, discharge this IM CN subsystem point-to-point content distribution service conversation to ask described IM CN subsystem point-to-point content distribution business peer-entities;

Receive the releasing session response message that described IM CN subsystem point-to-point content distribution business peer-entities sends, described releasing session response message is that described IM CN subsystem point-to-point content distribution business peer-entities receives described releasing session request message and the response message returned after discharging this IM CN subsystem point-to-point content distribution service conversation.

14. methods according to claim 12, is characterized in that, also carry the address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities in described releasing session request message;

According to described releasing session request message release this IM CN subsystem point-to-point content distribution service conversation described, comprising:

According to the described address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities, the releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark is sent to described IM CN subsystem point-to-point content distribution business peer-entities of acting on behalf of, the releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark is sent to the described IM CN subsystem point-to-point content distribution business peer-entities carrying out this IM CN subsystem point-to-point content distribution service conversation for described IM CN subsystem point-to-point content distribution business peer-entities of acting on behalf of, this IM CN subsystem point-to-point content distribution service conversation is discharged with the IM CN subsystem point-to-point content distribution business peer-entities carrying out this IM CN subsystem point-to-point content distribution service conversation described in asking,

Receive described IM CN subsystem point-to-point content distribution business peer-entities by the described releasing session response message acted on behalf of IM CN subsystem point-to-point content distribution business peer-entities and send, described releasing session response message is that described IM CN subsystem point-to-point content distribution business peer-entities receives described releasing session request message and the response message returned after discharging this IM CN subsystem point-to-point content distribution service conversation.

15. methods according to claim 12, is characterized in that, also carry the address of entrance IM CN subsystem point-to-point content distribution business peer-entities in described releasing session request message;

According to the address of described entrance IM CN subsystem point-to-point content distribution business peer-entities, the releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark is sent to described entrance IM CN subsystem point-to-point content distribution business peer-entities, between at least one the IM CN subsystem point-to-point content distribution business peer-entities comprising described entrance IM CN subsystem point-to-point content distribution business peer-entities, described releasing session request message is propagated to ask described entrance IM CN subsystem point-to-point content distribution business peer-entities, this IM CN subsystem point-to-point content distribution service conversation is discharged to ask at least one IM CN subsystem point-to-point content distribution business peer-entities described,

Receive the releasing session response message that at least one IM CN subsystem point-to-point content distribution business peer-entities described or at least one IM CN subsystem point-to-point content distribution business peer-entities described send by described entrance IM CN subsystem point-to-point content distribution business peer-entities, described releasing session response message be described at least one IM CN subsystem point-to-point content distribution business peer-entities receive described releasing session request message and the response message returned after discharging this IM CN subsystem point-to-point content distribution service conversation.

16. methods according to claim 13,14 or 15, it is characterized in that, receive described content distributing service application server send carry this IM CN subsystem point-to-point content distribution service conversation mark releasing session request message before, also comprise:

Receive the described releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark that described subscriber equipment sends;

The described releasing session request message of described this IM CN subsystem point-to-point content distribution service conversation mark is carried, to be determined by described content distributing service application server whether described subscriber equipment has permission request release this IM CN subsystem point-to-point content distribution service conversation described described in forwarding to described content distributing service application server.

17. methods according to claim 13,14 or 15, is characterized in that, according in described releasing session request message release this IM CN subsystem point-to-point content distribution service conversation described, also comprise:

Send the described releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark to described subscriber equipment, discharge this IM CN subsystem point-to-point content distribution service conversation to ask described subscriber equipment;

Receive the releasing session response message that described subscriber equipment sends, described releasing session response message is that described subscriber equipment receives described releasing session request message and the response message returned after discharging this IM CN subsystem point-to-point content distribution service conversation.

18. according to the arbitrary described method of claim 1-15, it is characterized in that, carry IM CN subsystem point-to-point content distribution business sign, the mark in IM CN subsystem point-to-point content distribution business peer-entities pond, the media description information of IM CN subsystem point-to-point content distribution service conversation in described first Session initiation Protocol invite request message and require one or more of parameter information of the IM CN subsystem point-to-point content distribution business peer-entities participating in session.

19. 1 kinds of content distributing service conversation managing methods, are applied in IM CN subsystem point-to-point content distribution business, it is characterized in that, comprising:

20. methods according to claim 19, is characterized in that, also comprise:

When needs add or delete an IM CN subsystem point-to-point content distribution business peer-entities in this IM CN subsystem point-to-point content distribution service conversation, the second Session initiation Protocol invite request message is sent to described service call session control function entity, the address of the IM CN subsystem point-to-point content distribution business peer-entities that needs add or needs are deleted is carried in described second Session initiation Protocol invite request message, described second Session initiation Protocol invite request message is sent according to described second Session initiation Protocol invite request message to the IM CN subsystem point-to-point content distribution business peer-entities that described needs add or needs are deleted for described service call session control function entity, add to ask described needs or needs delete IM CN subsystem point-to-point content distribution business peer-entities add or leave this IM CN subsystem point-to-point content distribution service conversation.

21. methods according to claim 20, it is characterized in that, the address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities is also carried in described second Session initiation Protocol invite request message, for described service call session control function entity according to the described address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities, described second Session initiation Protocol invite request message is sent to described IM CN subsystem point-to-point content distribution business peer-entities of acting on behalf of, for the described address acting on behalf of the IM CN subsystem point-to-point content distribution business peer-entities that IM CN subsystem point-to-point content distribution business peer-entities adds according to described needs or needs are deleted, described second Session initiation Protocol invite request message is sent to the IM CN subsystem point-to-point content distribution business peer-entities that described needs add or needs are deleted, add to ask described needs or needs delete IM CN subsystem point-to-point content distribution business peer-entities add or leave this IM CN subsystem point-to-point content distribution service conversation.

22. methods according to claim 20, is characterized in that, also comprise:

Send Session initiation Protocol to described service call session control function entity and re-invite request message, described Session initiation Protocol re-invites in request message the address and media description information of carrying the IM CN subsystem point-to-point content distribution business peer-entities that described needs add or needs are deleted, forward described Session initiation Protocol for described service call session control function entity to described subscriber equipment or described IM CN subsystem point-to-point content distribution business peer-entities and re-invite request message, with add or delete described needs add or needs delete IM CN subsystem point-to-point content distribution business peer-entities after, upgrade this IM CN subsystem point-to-point content distribution service conversation.

23. methods according to claim 19, is characterized in that, also comprise:

When discharging this IM CN subsystem point-to-point content distribution service conversation ongoing, the releasing session request message carrying this IM CN subsystem point-to-point content distribution service conversation mark is sent, for described service call session control function entity according to described releasing session request message release this IM CN subsystem point-to-point content distribution service conversation described to described service call session control function entity.

24. methods according to claim 23, it is characterized in that, the address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities is also carried in described releasing session request message, for described service call session control function entity according to the described address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities, the releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark is sent to described IM CN subsystem point-to-point content distribution business peer-entities of acting on behalf of, the releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark is sent to the described IM CN subsystem point-to-point content distribution business peer-entities carrying out this IM CN subsystem point-to-point content distribution service conversation for described IM CN subsystem point-to-point content distribution business peer-entities of acting on behalf of, this IM CN subsystem point-to-point content distribution service conversation is discharged with the described IM CN subsystem point-to-point content distribution business peer-entities carrying out this IM CN subsystem point-to-point content distribution service conversation described in asking.

25. methods according to claim 23, it is characterized in that, the address of entrance IM CN subsystem point-to-point content distribution business peer-entities is also carried in described releasing session request message, for the address of described service call session control function entity according to described entrance IM CN subsystem point-to-point content distribution business peer-entities, the releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark is sent to described entrance IM CN subsystem point-to-point content distribution business peer-entities, between at least one the IM CN subsystem point-to-point content distribution business peer-entities comprising described entrance IM CN subsystem point-to-point content distribution business peer-entities, described releasing session request message is propagated to ask described entrance IM CN subsystem point-to-point content distribution business peer-entities, this IM CN subsystem point-to-point content distribution service conversation is discharged to ask at least one IM CN subsystem point-to-point content distribution business peer-entities described.

26. methods according to claim 23,24 or 25, it is characterized in that, before sending to described service call session control function entity the releasing session request message carrying this IM CN subsystem point-to-point content distribution service conversation mark, also comprise:

Receive the described releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark that described subscriber equipment is sent by described service call session control function entity;

And determine that described subscriber equipment has permission request release this IM CN subsystem point-to-point content distribution service conversation described.

27. according to the arbitrary described method of claim 19-25, it is characterized in that, carry IM CN subsystem point-to-point content distribution business sign, the mark in IM CN subsystem point-to-point content distribution business peer-entities pond, the media description information of IM CN subsystem point-to-point content distribution service conversation in described first Session initiation Protocol invite request message and require one or more of parameter information of the IM CN subsystem point-to-point content distribution business peer-entities participating in session.

28. 1 kinds of service call session control function entity equipment, is characterized in that, comprising:

29. service call session control function entity equipment according to claim 28, is characterized in that, describedly set up module, comprising:

First transmitting element, for the address according to described IM CN subsystem point-to-point content distribution business peer-entities, described first Session initiation Protocol invite request message is sent, to ask to set up this IM CN subsystem point-to-point content distribution service conversation between described subscriber equipment and described IM CN subsystem point-to-point content distribution business peer-entities to described IM CN subsystem point-to-point content distribution business peer-entities;

First receiving element, for receiving the first Session initiation Protocol response message that described IM CN subsystem point-to-point content distribution business peer-entities returns; Address and the media description information of described IM CN subsystem point-to-point content distribution business peer-entities is carried in described first Session initiation Protocol response message; Described first Session initiation Protocol response message is the response message that the described first Session initiation Protocol invite request message of described IM CN subsystem point-to-point content distribution business peer-entities reception returns.

30. service call session control function entity equipment according to claim 28, it is characterized in that, in described first Session initiation Protocol invite request message, also carry the address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities;

Describedly set up module, comprising:

First transmitting element, for according to the address of described IM CN subsystem point-to-point content distribution business peer-entities and the described address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities, described first Session initiation Protocol invite request message is sent to described IM CN subsystem point-to-point content distribution business peer-entities by described IM CN subsystem point-to-point content distribution business peer-entities of acting on behalf of, to ask this IM CN subsystem point-to-point content distribution service conversation set up between described subscriber equipment and described IM CN subsystem point-to-point content distribution business peer-entities,

First receiving element, for receiving described IM CN subsystem point-to-point content distribution business peer-entities by described the first Session initiation Protocol response message acted on behalf of IM CN subsystem point-to-point content distribution business peer-entities and send, described IM CN subsystem point-to-point content distribution business peer-entities address and media description information is carried in described first Session initiation Protocol response message, described first Session initiation Protocol response message is the response message that the described first Session initiation Protocol invite request message of described IM CN subsystem point-to-point content distribution business peer-entities reception returns.

31. service call session control function entity equipment according to claim 28, it is characterized in that, described IM CN subsystem point-to-point content distribution business peer-entities is entrance IM CN subsystem point-to-point content distribution business peer-entities;

Described second receiver module, specifically for receiving the described first Session initiation Protocol invite request message of carrying the address of described entrance IM CN subsystem point-to-point content distribution business peer-entities that described content distributing service application server sends;

Describedly set up module, specifically for carrying the described first Session initiation Protocol invite request message of the address of described entrance IM CN subsystem point-to-point content distribution business peer-entities described in basis, this IM CN subsystem point-to-point content distribution service conversation between at least one the IM CN subsystem point-to-point content distribution business peer-entities set up described subscriber equipment and comprise described entrance IM CN subsystem point-to-point content distribution business peer-entities.

32. service call session control function entity equipment according to claim 31, is characterized in that, described module of setting up comprises:

First transmitting element, for the address according to described entrance IM CN subsystem point-to-point content distribution business peer-entities, described first Session initiation Protocol invite request message is sent to described entrance IM CN subsystem point-to-point content distribution business peer-entities, between at least one the IM CN subsystem point-to-point content distribution business peer-entities comprising described entrance IM CN subsystem point-to-point content distribution business peer-entities, described first Session initiation Protocol invite request message is propagated to ask described entrance IM CN subsystem point-to-point content distribution business peer-entities, to ask this IM CN subsystem point-to-point content distribution service conversation set up between described subscriber equipment and at least one IM CN subsystem point-to-point content distribution business peer-entities described,

First receiving element, for receiving the first Session initiation Protocol response message that at least one IM CN subsystem point-to-point content distribution business peer-entities described or at least one IM CN subsystem point-to-point content distribution business peer-entities described are returned by described entrance IM CN subsystem point-to-point content distribution business peer-entities; Described at least one IM CN subsystem point-to-point content distribution business peer-entities address and media description information is carried in described first Session initiation Protocol response message; Described first Session initiation Protocol response message is the response message that the described first Session initiation Protocol invite request message of described IM CN subsystem point-to-point content distribution business peer-entities reception returns.

33. service call session control function entity equipment according to claim 28, is characterized in that:

Described second receiver module, also for when needs add or delete an IM CN subsystem point-to-point content distribution business peer-entities in this IM CN subsystem point-to-point content distribution service conversation, receive the second Session initiation Protocol invite request message that described content distributing service application server sends, in described second Session initiation Protocol invite request message, carry the address of the IM CN subsystem point-to-point content distribution business peer-entities that needs add or needs are deleted;

Described sending module, also for according to described second Session initiation Protocol invite request message to described needs add or needs delete IM CN subsystem point-to-point content distribution business peer-entities send described second Session initiation Protocol invite request message, add to ask described needs or needs deletion IM CN subsystem point-to-point content distribution business peer-entities add or leave this IM CN subsystem point-to-point content distribution service conversation.

34. service call session control function entity equipment according to claim 33, is characterized in that:

Described first receiver module, also for receiving the second Session initiation Protocol response message of the IM CN subsystem point-to-point content distribution business peer-entities transmission that described needs add or needs are deleted;

Described sending module, also for forwarding described second Session initiation Protocol response message to described content distributing service application server;

Described second receiver module, the Session initiation Protocol also sent for receiving described content distributing service application server re-invites request message, and described Session initiation Protocol re-invites in request message the address and media description information of carrying the IM CN subsystem point-to-point content distribution business peer-entities that described needs add or needs are deleted;

Described sending module, also re-invite request message for forwarding described Session initiation Protocol to described subscriber equipment, with add or delete described needs add or needs delete IM CN subsystem point-to-point content distribution business peer-entities after, upgrade this IM CN subsystem point-to-point content distribution service conversation.

35. service call session control function entity equipment according to claim 34, is characterized in that:

Described sending module, also re-invite request message for sending described Session initiation Protocol to the described IM CN subsystem point-to-point content distribution business peer-entities carrying out this IM CN subsystem point-to-point content distribution service conversation with described subscriber equipment, with add or delete described needs add or needs delete IM CN subsystem point-to-point content distribution business peer-entities after, upgrade this IM CN subsystem point-to-point content distribution service conversation.

36. service call session control function entity equipment according to claim 34, is characterized in that:

Described sending module, also re-invite request message for sending described Session initiation Protocol to entrance IM CN subsystem point-to-point content distribution business peer-entities, propagate described Session initiation Protocol for described entrance IM CN subsystem point-to-point content distribution business peer-entities and re-invite request message adding or delete between at least one the IM CN subsystem point-to-point content distribution business peer-entities after described needs add or needs are deleted IM CN subsystem point-to-point content distribution business peer-entities, with add or delete described needs add or needs delete IM CN subsystem point-to-point content distribution business peer-entities after, upgrade this IM CN subsystem point-to-point content distribution service conversation, at least one IM CN subsystem point-to-point content distribution business peer-entities described comprises described entrance IM CN subsystem point-to-point content distribution business peer-entities.

37. service call session control function entity equipment according to claim 33, is characterized in that: also carry the address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities in described second Session initiation Protocol invite request message;

Described sending module, for according to the described address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities, described second Session initiation Protocol invite request message is sent to described IM CN subsystem point-to-point content distribution business peer-entities of acting on behalf of, for the described address acting on behalf of the IM CN subsystem point-to-point content distribution business peer-entities that IM CN subsystem point-to-point content distribution business peer-entities adds according to described needs or needs are deleted, described second Session initiation Protocol invite request message is sent to the IM CN subsystem point-to-point content distribution business peer-entities that described needs add or needs are deleted, add to ask described needs or needs delete IM CN subsystem point-to-point content distribution business peer-entities add or leave this IM CN subsystem point-to-point content distribution service conversation.

38., according to service call session control function entity equipment according to claim 37, is characterized in that:

Described first receiver module, also for receive described needs add or needs delete IM CN subsystem point-to-point content distribution business peer-entities by described act on behalf of IM CN subsystem point-to-point content distribution business peer-entities send the second Session initiation Protocol response message; Address and the media description information of the IM CN subsystem point-to-point content distribution business peer-entities that described needs add or needs are deleted is carried in described second Session initiation Protocol response message;

Described sending module, also re-invite request message for forwarding described Session initiation Protocol to described subscriber equipment or described IM CN subsystem point-to-point content distribution business peer-entities, with add or delete described needs add or needs delete IM CN subsystem point-to-point content distribution business peer-entities after, upgrade this IM CN subsystem point-to-point content distribution service conversation.

39. service call session control function entity equipment according to claim 28, is characterized in that, also comprise release module;

Described second receiver module, also for when discharging this IM CN subsystem point-to-point content distribution service conversation ongoing, receive the releasing session request message carrying this IM CN subsystem point-to-point content distribution service conversation mark that described content distributing service application server sends;

Described release module, for this IM CN subsystem point-to-point content distribution service conversation according to described releasing session request message release.

40., according to service call session control function entity equipment according to claim 39, is characterized in that, described release module, comprising:

Second transmitting element, for according to described releasing session request message, send the described releasing session request message carrying this IM CN subsystem point-to-point content distribution service conversation mark to described IM CN subsystem point-to-point content distribution business peer-entities, discharge this IM CN subsystem point-to-point content distribution service conversation to ask described IM CN subsystem point-to-point content distribution business peer-entities;

Second receiving element, for receiving the releasing session response message that described IM CN subsystem point-to-point content distribution business peer-entities sends, described releasing session response message is that described IM CN subsystem point-to-point content distribution business peer-entities receives described releasing session request message and the response message returned after discharging this IM CN subsystem point-to-point content distribution service conversation.

41., according to service call session control function entity equipment according to claim 39, is characterized in that, also carry the address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities in described releasing session request message; Described release module, comprising:

Second transmitting element, for according to the described address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities, the releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark is sent to described IM CN subsystem point-to-point content distribution business peer-entities of acting on behalf of, the releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark is sent to the described IM CN subsystem point-to-point content distribution business peer-entities carrying out this IM CN subsystem point-to-point content distribution service conversation for described IM CN subsystem point-to-point content distribution business peer-entities of acting on behalf of, this IM CN subsystem point-to-point content distribution service conversation is discharged with the IM CN subsystem point-to-point content distribution business peer-entities carrying out this IM CN subsystem point-to-point content distribution service conversation described in asking,

Second receiving element, for receiving described IM CN subsystem point-to-point content distribution business peer-entities by the described releasing session response message acted on behalf of IM CN subsystem point-to-point content distribution business peer-entities and send, described releasing session response message is that described IM CN subsystem point-to-point content distribution business peer-entities receives described releasing session request message and the response message returned after discharging this IM CN subsystem point-to-point content distribution service conversation.

42., according to service call session control function entity equipment according to claim 39, is characterized in that, also carry the address of entrance IM CN subsystem point-to-point content distribution business peer-entities in described releasing session request message; Described release module, comprising:

Second transmitting element, for the address according to described entrance IM CN subsystem point-to-point content distribution business peer-entities, the releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark is sent to described entrance IM CN subsystem point-to-point content distribution business peer-entities, between at least one the IM CN subsystem point-to-point content distribution business peer-entities comprising described entrance IM CN subsystem point-to-point content distribution business peer-entities, described releasing session request message is propagated to ask described entrance IM CN subsystem point-to-point content distribution business peer-entities, this IM CN subsystem point-to-point content distribution service conversation is discharged to ask at least one IM CN subsystem point-to-point content distribution business peer-entities described,

Second receiving element, for receiving the releasing session response message that at least one IM CN subsystem point-to-point content distribution business peer-entities described or at least one IM CN subsystem point-to-point content distribution business peer-entities described are sent by described entrance IM CN subsystem point-to-point content distribution business peer-entities, described releasing session response message be described at least one IM CN subsystem point-to-point content distribution business peer-entities receive described releasing session request message and the response message returned after discharging this IM CN subsystem point-to-point content distribution service conversation.

43. service call session control function entity equipment according to claim 40,41 or 42, is characterized in that:

Described first receiver module, also for receive at described second receiver module that described content distributing service application server sends carry the releasing session request message of this IM CN subsystem point-to-point content distribution service conversation mark before, receive the described releasing session request message carrying this IM CN subsystem point-to-point content distribution service conversation described mark that described subscriber equipment sends;

Described sending module, also for the described releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark described in described content distributing service application server forwarding, to be determined by described content distributing service application server whether described subscriber equipment has permission this IM CN subsystem point-to-point content distribution service conversation described in request release.

44. service call session control function entity equipment according to claim 40,41 or 42, is characterized in that:

Described second transmitting element, also for sending the described releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark to described subscriber equipment, discharge this IM CN subsystem point-to-point content distribution service conversation to ask described subscriber equipment;

Described second receiving element, also for receiving the releasing session response message that described subscriber equipment sends, described releasing session response message is that described subscriber equipment receives described releasing session request message and the response message returned after discharging this IM CN subsystem point-to-point content distribution service conversation.

45. according to the arbitrary described service call session control function entity equipment of claim 28-42, it is characterized in that, IM CN subsystem point-to-point content distribution business sign is carried in described first Session initiation Protocol invite request message, the mark in IM CN subsystem point-to-point content distribution business peer-entities pond, the media description information of IM CN subsystem point-to-point content distribution service conversation and require one or more of parameter information of the IM CN subsystem point-to-point content distribution business peer-entities participating in session.

46. 1 kinds of content distributing service application server equipment, is characterized in that, comprising:

47. content distributing service application server equipment according to claim 46, is characterized in that;

Described sending module, also for when needs add or delete an IM CN subsystem point-to-point content distribution business peer-entities in this IM CN subsystem point-to-point content distribution service conversation, the second Session initiation Protocol invite request message is sent to described service call session control function entity, the address of the IM CN subsystem point-to-point content distribution business peer-entities that needs add or needs are deleted is carried in described second Session initiation Protocol invite request message, described second Session initiation Protocol invite request message is sent according to described second Session initiation Protocol invite request message to the IM CN subsystem point-to-point content distribution business peer-entities that described needs add or needs are deleted for described service call session control function entity, add to ask described needs or needs delete IM CN subsystem point-to-point content distribution business peer-entities add or leave this IM CN subsystem point-to-point content distribution service conversation.

48. content distributing service application server equipment according to claim 47, it is characterized in that, the address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities is also carried in described second Session initiation Protocol invite request message, for described service call session control function entity according to the described address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities, described second Session initiation Protocol invite request message is sent to described IM CN subsystem point-to-point content distribution business peer-entities of acting on behalf of, for the described address acting on behalf of the IM CN subsystem point-to-point content distribution business peer-entities that IM CN subsystem point-to-point content distribution business peer-entities adds according to described needs or needs are deleted, described second Session initiation Protocol invite request message is sent to the IM CN subsystem point-to-point content distribution business peer-entities that described needs add or needs are deleted, add to ask described needs or needs delete IM CN subsystem point-to-point content distribution business peer-entities add or leave this IM CN subsystem point-to-point content distribution service conversation.

49. content distributing service application server equipment according to claim 47, is characterized in that:

Described sending module, also re-invite request message for sending Session initiation Protocol to described service call session control function entity, described Session initiation Protocol re-invites in request message the address and media description information of carrying the IM CN subsystem point-to-point content distribution business peer-entities that described needs add or needs are deleted, forward described Session initiation Protocol for described service call session control function entity to described subscriber equipment or described IM CN subsystem point-to-point content distribution business peer-entities and re-invite request message, with add or delete described needs add or needs delete IM CN subsystem point-to-point content distribution business peer-entities after, upgrade this IM CN subsystem point-to-point content distribution service conversation.

50. content distributing service application server equipment according to claim 46, is characterized in that:

Described sending module, also for when discharging this IM CN subsystem point-to-point content distribution service conversation ongoing, the releasing session request message carrying this IM CN subsystem point-to-point content distribution service conversation mark is sent, for described service call session control function entity according to described releasing session request message release this IM CN subsystem point-to-point content distribution service conversation described to described service call session control function entity.

51. content distributing service application server equipment according to claim 50, it is characterized in that, the address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities is also carried in described releasing session request message, for described service call session control function entity according to the described address acting on behalf of IM CN subsystem point-to-point content distribution business peer-entities, the releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark is sent to described IM CN subsystem point-to-point content distribution business peer-entities of acting on behalf of, the releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark is sent to the described IM CN subsystem point-to-point content distribution business peer-entities carrying out this IM CN subsystem point-to-point content distribution service conversation for described IM CN subsystem point-to-point content distribution business peer-entities of acting on behalf of, this IM CN subsystem point-to-point content distribution service conversation is discharged with the described IM CN subsystem point-to-point content distribution business peer-entities carrying out this IM CN subsystem point-to-point content distribution service conversation described in asking.

52. content distributing service application server equipment according to claim 50, it is characterized in that, the address of entrance IM CN subsystem point-to-point content distribution business peer-entities is also carried in described releasing session request message, for the address of described service call session control function entity according to described entrance IM CN subsystem point-to-point content distribution business peer-entities, the releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark is sent to described entrance IM CN subsystem point-to-point content distribution business peer-entities, between at least one the IM CN subsystem point-to-point content distribution business peer-entities comprising described entrance IM CN subsystem point-to-point content distribution business peer-entities, described releasing session request message is propagated to ask described entrance IM CN subsystem point-to-point content distribution business peer-entities, this IM CN subsystem point-to-point content distribution service conversation is discharged to ask at least one IM CN subsystem point-to-point content distribution business peer-entities described.

53. content distributing service application server equipment according to claim 50,51 or 52, is characterized in that, also comprise determination module;

Described receiver module, also for send to described service call session control function entity at described sending module carry this IM CN subsystem point-to-point content distribution service conversation mark releasing session request message before, receive the described releasing session request message carrying described this IM CN subsystem point-to-point content distribution service conversation mark that described subscriber equipment is sent by described service call session control function entity;

Described determination module, for determining that described subscriber equipment has permission request release this IM CN subsystem point-to-point content distribution service conversation described.

54. according to the arbitrary described content distributing service application server equipment of claim 46-52, it is characterized in that, IM CN subsystem point-to-point content distribution business sign is carried in described first Session initiation Protocol invite request message, the mark in IM CN subsystem point-to-point content distribution business peer-entities pond, the media description information of IM CN subsystem point-to-point content distribution service conversation and require one or more of parameter information of the IM CN subsystem point-to-point content distribution business peer-entities participating in session.

55. 1 kinds of content distributing service conversation management systems, is characterized in that, comprise the arbitrary described service call session control function entity equipment of as above claim 28-45 and as above claim 46-54 arbitrary described in content distributing service application server equipment.