CN102088447A - Media control method and system in IMS (IP multimedia subsystem) - Google Patents
Media control method and system in IMS (IP multimedia subsystem) Download PDFInfo
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- CN102088447A CN102088447A CN200910242301.4A CN200910242301A CN102088447A CN 102088447 A CN102088447 A CN 102088447A CN 200910242301 A CN200910242301 A CN 200910242301A CN 102088447 A CN102088447 A CN 102088447A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
Abstract
The invention discloses a media control method and system in an IMS (IP multimedia subsystem), and the method comprises: an MCF (multicore framework) or a media control parsing entity set in the IMS receives an SIP message used for controlling the media service and sent by a user terminal concerning to requested media service, and maps the SIP message to a corresponding RTSP (real time streaming protocol) command or parses out the RTSP command from the SIP message according to a mapping relation between the SIP message and the RTSP command; then, the RTSP command obtained through mapping and parsing is sent to an MDF (main distribution frame), wherein the SIP message received by the media control parsing entity is sent to the media control parsing entity after the MCF receives the SIP message sent by the user terminal; and the MDF controls the media service requested by the user terminal according to the received RTSP command. According to the invention, media interactive control between the user terminal and a network side on the premise of not damaging completeness of the RTSP protocol can be supported.
Description
Technical field
The present invention relates to the communications field, relate in particular to media control method and system thereof in a kind of IMS system.
Background technology
IP Multimedia System (IMS) is a conversation control system based on Session Initiation Protocol.The layer architecture form is taked in the design of IMS system, this layer architecture system has embodied the thought of " business is separated with control " and " control is separated with access and carrying ", make different user terminals to be linked in the IMS network by different wireless access technologys or wire access technology, enjoy unified calling control service, and can use diversified multi-media value-added business.The network architecture of this stratification is designed to interconnecting of heterogeneous networks and professional fusion is laid a good foundation.At present, IMS is extensively admitted by industry and is the core technology of next generation network, also is to solve to move with fixed network to merge the important way of differentiation business such as introducing voice, data, the triple fusions of video.
Yet, under the IMS system environments, use Session Initiation Protocol (Session Initiated Protocol, conversation initialized protocol) user terminal, because Session Initiation Protocol is mainly supported session control, it is not enough that medium are controlled support alternately, can not support RTSP agreement (Real-Time Streaming Protocol better, transmit stream media protocol in real time), make sip user terminal and network side can not realize the mutual control of media business comparatively easily.
Occurred at present making sip terminal to support the scheme of RTSP business, this scheme mainly merges RTSP and Session Initiation Protocol, but this scheme need be safeguarded two cover protocol stacks respectively at the client and server end, and adds synchronization mechanism, and therefore control is complicated, cost is higher.
Summary of the invention
The embodiment of the invention provides media control method and the system thereof in a kind of IMS system, and is supportive poor to the RTSP agreement in order to solve in the existing IMS system Session Initiation Protocol, causes the medium of user terminal and network side to control the big problem of difficulty that realizes alternately.
The technical scheme that the embodiment of the invention provides comprises:
Media control method in a kind of IMS system comprises:
Media control function entity MCF or the medium control that is arranged at the IMS system are resolved entity and are received after user terminal controls the Session initiation protocol SIP message of this media business at its media business of asking being used to of sending, according to sip message and the mapping relations that transmit stream media protocol RTSP order in real time, described sip message is mapped as corresponding RTSP order, perhaps from this sip message, parses the RTSP order; Then, send to medium transmitting function entity MDF with shining upon or resolving the RTSP order that obtains; Wherein, to resolve the sip message that entity receives be described MCF to the control of described medium sends to described medium control resolve entity after receiving the sip message that described user terminal sends;
Described MDF controls the media business that described user terminal is asked according to the RTSP order that receives.
A kind of media control system is applied to the IMS system, comprising:
Realize the functional entity of medium control, be used to receive the sip message that is used to control this media business that user terminal sends at its media business of asking, and according to the mapping relations of described sip message and RTSP order, described sip message is mapped as corresponding RTSP order, perhaps from this sip message, parses the RTSP order; Then, send to medium transmitting function entity MDF with shining upon or resolving the RTSP order that obtains;
MDF is used for according to the RTSP order that receives the media business that described user terminal is asked being controlled.
The above embodiment of the present invention, shine upon by sip message and RTSP order that user terminal is sent, perhaps in sip message, carry the RTSP order, make the control of MCF or medium resolve entity and can obtain the RTSP order according to sip message mapping that receives or parsing, thereby make MDF realize user terminal and network side mutual control procedure according to shining upon from sip message or resolving the RTSP order that obtains corresponding media business is controlled to media business.Because sip message and RTSP order are shone upon, perhaps in sip message, carry the RTSP order, like this, on the one hand existing RTSP agreement is not had to change substantially, thereby guaranteed the RTSP protocol integrity, on the other hand, change to existing Session Initiation Protocol is less, thereby reduced the difficulty that realizes the mutual control of media business, more on the one hand, reduced the degree of coupling of Session Initiation Protocol and RTSP agreement.
Description of drawings
The system architecture and the medium control flow schematic diagram of the mutual control of relevant medium in the IMS IPTV system that Fig. 1 embodiment of the invention is provided;
Fig. 2 is media play handling process schematic diagram that the embodiment of the invention provided;
Fig. 3 is media business session teardown schematic flow sheet that the embodiment of the invention provided;
Fig. 4 suspends schematic flow sheet for the media delivery that the embodiment of the invention provided;
Fig. 5 recovers schematic flow sheet for the media play that the embodiment of the invention provided;
Fig. 6 is media play F.F. schematic flow sheet that the embodiment of the invention provided.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
The embodiment of the invention is by being the mutual RTSP protocol command of controlling of realization medium with the Session Initiation Protocol message maps; Perhaps, the RTSP control signaling information that to realize the mutual control of medium by expansion Session Initiation Protocol message is carried in the message body of Session Initiation Protocol message, thereby the medium that carry in the message body according to Session Initiation Protocol message are controlled signaling information alternately and are generated corresponding RTSP protocol command, to realize that carrying out medium in the IMS system controls alternately.
Usually, realize that the mutual RTSP order of controlling of medium comprises:
DESCRIBE order: the media description information in request RTSP path;
PLAY order: beginning play stream media data;
PAUSE order: stop stream temporarily, and do not discharge server resource;
SET_PARAMETER order: flow control parameter is set;
TEARDOWN order: close dialogue;
FORWARD order: browse stream medium data fast forward;
The OPTIONS order: the inquiry server, which order is available;
The SETUP order: the attribute of session is set, and transmission mode, set up session;
REDIRECT order: redirect command.
In the embodiment of the invention, use the correlation method of original Session Initiation Protocol to realize some RTSP order wherein, these RTSP orders can comprise:
SETUP order: can use the INVITE method of Session Initiation Protocol to realize;
REDIRECT order: can use the REFER method of Session Initiation Protocol to realize;
TEARDOWN order: can use the BYE method of Session Initiation Protocol to realize;
OPTIONS order: can use the OPTIONS method of Session Initiation Protocol to realize.
For other RTSP orders, as, PLAY order, DESCRIBE order, PAUSE order, SET_PARAMETER order, FORWARD order etc., then can be by the message body of expansion Session Initiation Protocol message, the signaling information of RTSP order is carried in the message body of Session Initiation Protocol message, so that the relevant mutual controlled entity of medium generates corresponding RTSP order according to the signaling information of the RTSP order of carrying in the Session Initiation Protocol message after expanding, thereby the realization medium are controlled alternately.
At the situation of needs expansion Session Initiation Protocol message, the embodiment of the invention is expanded by re-INVITE message or INFO to former Session Initiation Protocol, utilizes the message body (BODY) of this message to carry the signaling information of RTSP order.
In the embodiment of the invention, mapping relations by definition sip message and RTSP order, and the signaling information of the portable RTSP order of the message body of definition sip message and corresponding sip message resolution rules, thereby formed the new Session Initiation Protocol rule that to support the mutual control of RTSP medium, this protocol rule can be referred to as the SIP+ protocol rule.
Table 1 has provided the mapping relations of a kind of SIP+ protocol message and RTSP order.
Table 1
In the table 1, be provided with fields such as PLAY, PAUSE, FORWARD or DESCRIBE in the message body of RE-INVITE message, be used for carrying the RTSP signaling information of the mutual usefulness of control corresponding medium.Certainly, the field in the message body of RE-INVITE message also can increase and decrease according to actual needs.RE-INVITE message is also replaceable to be INFO.
Need to prove, table 1 has only provided several RTSP orders commonly used and the mapping relations of sip message, according to above rule, those skilled in the art should be able to draw carry-on other RTSP signaling informations in the message body of the mapping relations of in addition other RTSP order and sip message and sip message.
In order to realize that medium control alternately, the embodiment of the invention need be transformed the system architecture of the mutual control of relevant medium in the existing IMS IPTV system.
As shown in Figure 1, the system architecture of the mutual control of relevant medium in the IMS IPTV system that the embodiment of the invention provided, mainly comprise CSCF (call conversation control function entity), IPTV AS (media application server), MCF (media control function entity), MDF (medium transmitting function entity), and gateway (or claiming medium control to resolve entity) is resolved in the medium that present embodiment increased newly control.Wherein, CSCF comprises S-CSCF (serving CSCF), P-CSCF (proxy CSCF) and I-CSCF (inquiry CSCF), and I-CSCF and S-CSCF can close and establish, as the I/S-CSCF among Fig. 1.It can be an independent function entity that gateway is resolved in medium control, also can be used as a functional module and MCF and closes and establish.
CSCF in the said system carries out call session control according to current mechanism; IPTV AS provides the media business data according to current mechanism; MCF according to the medium that current mechanism mainly be responsible for to be handled Media Stream control to MDF, management MDF handle, state, management and the user of monitoring MDF mutual etc.; MDF is according to the transmission of the mainly responsible processing Media Stream of current mechanism, to MCF report condition, medium etc.; The SIP+ protocol rule of gateway according to embodiment of the invention definition resolved in medium control, the main sip message of being responsible for receiving relevant medium control from MCF, and sip message is mapped as the RTSP order according to the mapping relations of sip message and RTSP order, perhaps from sip message, parse the RTSP order, the RTSP order that to shine upon or parse then sends to MDF, thereby makes MDF order the transmission of control flows media data or carry out session control etc. according to this RTSP.
As can be seen, MCF, medium control parsing gateway have constituted the media control system relevant with medium control with MDF.Need to prove, MCF, medium control parsing gateway and MDF are the major function entities in the described media control system, do not get rid of to comprise also in this system that other are network entity or other the necessary network entities of realizing signaling or transmission of flow media data service.
Based on the said system framework, as shown in Figure 1, the mutual control flow of the medium that the embodiment of the invention provides mainly comprises:
Wherein, described UE can support the SIP+ protocol rule and the RTSP agreement of embodiment of the invention definition.
Step 102, sip message arrive P-CSCF, and P-CSCF handles and transmits this sip message and gives I/S-CSCF, carries out session control by S-CSCF, and wherein, I-CSCF provides the S-CSCF that handles this user's request where necessary;
Step 103, S-CSCF are forwarded to corresponding AS further to handle with sip message;
Step 104, AS handle according to this sip message and carry out the media business processing, and this sip message is sent to S-CSCF;
Step 106, MCF send to medium control with the sip message that receives and resolve gateway, resolve gateway by medium control and carry out mapping or the parsing of sip message to the RTSP order;
Below in conjunction with Fig. 2, Fig. 3, Fig. 4 and Fig. 5, further the realization flow at the mutual control of dissimilar medium that the embodiment of the invention provided is described in detail.
When the user chooses wherein a media business in playlist after, to set up the session of UE, and transmit stream medium data by this session to network side, above flow process comprises the steps: as shown in Figure 2
The request that step 201～202, UE obtain media business according to the user sends INVITE to P-CSCF, sets up media business transmission connection session with request, carries the Multimedia session of this UE in this INVITE and describes (SDP) information; P-CSCF returns INVITE response message (100 Trying);
In this step, the user can select and the program request media business by the media business client that disposes among its UE, the order (as clicking the function corresponding button) of the media business of selecting according to the user and this media business of program request of submission, UE generates INVITE according to this request and sends.
Step 203～204, P-CSCF are transmitted to I/S-CSCF with this INVITE; I/S-CSCF returns INVITE response message (100 Trying);
Step 205～206, I/S-CSCF carry out session control according to this INVITE, and send INVITE to the AS of the Streaming Media correspondence of being asked, to ask further to handle this media business request; AS returns INVITE response message (100 Trying);
Step 207～208, AS carry out Business Processing to INVITE, and INVITE is sent to I/S-CSCF, wherein carry SDP information; I/S-CSCF returns INVITE response message (100 Trying);
Step 209～210, I/S-CSCF send INVITE to MCF; MCF returns INVITE response message (100 Trying);
Step 211～212, MCF send to medium control with the INVITE that receives and resolve gateway; Medium control is resolved gateway and is returned INVITE response message (100 Trying);
Step 213～214, since the defined SIP+ protocol rule of the embodiment of the invention in, there are mapping relations in SIP INVITE and RTSP SETUP order, therefore medium control parsing gateway is RTSP SETUP order with this SIPINVITE message conversion, and this RTSP SETUP order is sent to MDF; MDF orders the media delivery connection session of setting up with UE according to this RTSP SETUP, and returns the RTSPSETUP response;
Step 215～219, medium control are resolved gateway and are sent 200 OK response messages, and this message sends to UE along signaling paths;
Step 220～224, UE return the ACK acknowledge message, and this message sends to medium control along signaling paths and resolves gateway.
In the above-mentioned flow process, the step that sends the SIP response message is an optional step.
After the media delivery connection session was set up, MDF transmitted stream medium data by this session to UE.
After the media delivery connection session is set up, the media business that the user can close or finish to be asked, the media delivery connection session will be removed this moment, and as shown in Figure 3, this flow process mainly comprises the steps:
Step 301, UE send BYE message to P-CSCF, remove the media delivery connection session with request;
In this step, the user can be by the media business client that disposes among its UE at the media business of having asked, and closes or the finish command asks to finish this media business by submission, and UE generates the BYE information and sending according to this request.
Step 302, P-CSCF give I/S-CSCF with this BYE forwards;
Step 303, I/S-CSCF carry out session control according to this BYE message, and send BYE message to the AS corresponding with the media business of being asked;
Step 304, AS be to carrying out Business Processing according to this BYE message, and send BYE message to I/S-CSCF;
Step 305, I/S-CSCF send BYE message to MCF;
Step 306, MCF send to medium control with BYE message and resolve gateway;
Step 307, since the defined SIP+ protocol rule of the embodiment of the invention in, there are mapping relations in SIP BYE message and RTSP TEARDOWN order, therefore medium control parsing gateway is RTSP TEARDOWN order with this SIP BYE message conversion, and this RTSP TEARDOWN order is sent to MDF;
Step 308, MDF order the media delivery connection session of removing with UE according to this RTSP TEARDOWN, and return RTSP TEARDOWN response;
Step 309～313, MDF send 200 OK response messages, and this message sends to UE along signaling paths.
In the process of media play (promptly in the transmission of flow media data process), the user can suspend the current Streaming Media of broadcast, at this moment, can suspend and transmit this Streaming Media, and as shown in Figure 4, this flow process comprises the steps:
Step 401, UE send re-INVITE message to P-CSCF, suspend with request and transmit stream medium data, and the message body of this re-INVITE message includes the PAUSE field, and the value of this field is a RTSP PAUSE signaling data;
In this step, the user can submit the request that suspends broadcast to by the PAUSE order button of clicking in the media player, and UE generates re-INVITE message according to this request, and RTSP PAUSE signaling data is carried in the message body of this re-INVITE message.
Step 402, P-CSCF give I/S-CSCF with the re-INVITE forwards;
Step 403, I/S-CSCF carry out session control according to this re-INVITE message, and this re-INVITE message is sent to AS;
Step 404, AS be to carrying out Business Processing according to this re-INVITE message, and re-INVITE message is sent to I/S-CSCF;
Step 405, I/S-CSCF send re-INVITE message to MCF;
Step 406, MCF send to medium control with the re-INVITE message that receives and resolve gateway;
Step 407, medium control are resolved gateway according to embodiment of the invention SIP+ protocol rule, parse RTSP TEARDOWN order from the message body of re-INVITE message, and the RTSPTEARDOWN order is sent to MDF;
Step 408, MDF, suspend to UE and transmit stream medium data, and return response message keeping session to be under the connection status according to RTSP TEARDOWN order;
Step 409～413, transmit 200 OK message along signaling paths;
Step 414～418, UE return ACK message, and this ACK message is transferred to medium control along signaling paths and resolves gateway.
After media play was suspended, the user can recover to play, and can recover play stream media data this moment, and as shown in Figure 5, this flow process mainly comprises the steps:
Step 501, UE send re-INVITE message to P-CSCF, recover media play with request; The message body of this re-INVITE message includes the PLAY field, and the value of this field is the signaling data of RTSP PLAY order;
In this step, the user can submit the request that recovers broadcast to by the PLAY order button of clicking in the media player, and UE generates re-INVITE message according to this request, and RTSP PLAY signaling data is carried in the message body of this re-INVITE message.
Step 502, P-CSCF give I/S-CSCF with the re-INVITE forwards;
Step 503, I/S-CSCF root re-INVITE message are carried out session control, and re-INVITE message are sent to AS;
Step 504, AS be to handling according to this re-INVITE message, and re-INVITE message is sent to I/S-CSCF;
Step 505, I/S-CSCF send to MCF with this re-INVITE message;
Step 506, MCF send to medium control with this re-INVITE message and resolve gateway;
The regulation of gateway according to the SIP+ agreement resolved in step 507, medium control, parses RTSP PLAY order from the message body of this re-INVITE message, and this RTSP PLAY order is sent to MDF;
Step 509～513, medium control are resolved gateway and are sent 200 OK response messages, and this message sends to UE along signaling paths;
Step 514～518, UE return ACK message, and this response message sends to medium control along signaling paths and resolves gateway.
In the process of media play, the user can ask Streaming Media is carried out fast-forward play, and as shown in Figure 6, this flow process mainly comprises the steps:
Step 601, UE send re-INVITE message to P-CSCF, with the request fast-forward play; The message body of this re-INVITE message includes the FORWARD field, and the value of this field is the signaling data of RTSPFORWARD order;
Step 602, P-CSCF give I/S-CSCF with the re-INVITE forwards;
Step 603, I/S-CSCF carry out session control according to this message, and re-INVITE message is sent to AS;
Step 604, AS carry out Business Processing according to this message, and give I/S-CSCF with re-INVITE message;
Step 605, I/S-CSCF send to MCF with re-INVITE message;
Step 606, MCF send to medium control with re-INVITE message and resolve gateway;
The regulation of gateway according to the SIP+ agreement resolved in step 607, medium control, parses RTSP FORWARD order from the message body of this re-INVITE message, and this order is sent to MDF;
Step 608, MDF be according to RTSP FORWARD order, will and UE between the media flow transmission state that carries out be made as the F.F. state, and return response message;
Step 609～613, medium control are resolved gateway and are sent 200 OK response messages, and this message sends to UE along signaling paths;
Step 614～618, UE return ACK message, and this response message sends to medium control along signaling paths and resolves gateway.
Regulation according to existing Session Initiation Protocol, can carry the information and other the relevant information that are used for the media business that identifying user asks in the sip message that UE sent as required, as SDP information, also can carry these information as required in the sip message that UE sent in the embodiment of the invention, so that the related entities of network side can be controlled according to the corresponding media business of these information processings or to corresponding media business.
In sum, the above embodiment of the present invention, by expansion to original Session Initiation Protocol, sip message is shone upon with relevant RTSP order, perhaps make sip message can carry the RTSP order, and by increasing parsing gateway function entity or module newly at network side, realize that mapping obtains the RTSP order according to sip message, perhaps from sip message, parse the RTSP order of its carrying, make the MDF entity or resolve the RTSP that obtains and to order the mutual control that realizes media business according to mapping, thereby make the user use multi-media value-added business more easily, reduce the cost expenditure.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (17)
1. the media control method in the IMS system is characterized in that, comprising:
Media control function entity MCF or the medium control that is arranged at the IMS system are resolved entity and are received after user terminal controls the Session initiation protocol SIP message of this media business at its media business of asking being used to of sending, according to sip message and the mapping relations that transmit stream media protocol RTSP order in real time, described sip message is mapped as corresponding RTSP order, perhaps from this sip message, parses the RTSP order; Then, send to medium transmitting function entity MDF with shining upon or resolving the RTSP order that obtains; Wherein, to resolve the sip message that entity receives be described MCF to the control of described medium sends to described medium control resolve entity after receiving the sip message that described user terminal sends;
Described MDF controls the media business that described user terminal is asked according to the RTSP order that receives.
2. the method for claim 1 is characterized in that, the mapping relations of described sip message and RTSP order comprise one of following or combination in any:
The corresponding relation of SIP INVITE and RTSP SETUP order;
The corresponding relation of SIP BYE message and RTSP TEARDOWN order;
The corresponding relation of SIP REDIRECTE message and RTSP REFER order;
The corresponding relation of SIP OPTIONS message and RTSP OPTIONS order;
RTSP order from described sip message parses comprises: RTSP PLAY order, RTSP PAUSE order, RTSP DESCRIBE order or RTSP FORWARD order.
3. method as claimed in claim 2 is characterized in that, described user terminal sends sip message, is specially: described user terminal sends SIPINVITE message according to the request that the user sets up media business transmission connection session;
Described MCF or the control of described medium are resolved entity and according to described mapping relations sip message are mapped as corresponding RTSP order, be specially: the corresponding relation of entity according to SIP INVITE in the described mapping relations and RTSP SETUP order resolved in described MCF or the control of described medium, and described SIPINVITE message maps is RTSP SETUP order;
Described MDF orders according to described RTSP SETUP, for the media business that described user terminal is asked is set up the media delivery connection session.
4. method as claimed in claim 2 is characterized in that, described user terminal sends sip message, is specially: described user terminal sends SIPBYE message according to the request that the user removes media business transmission connection session;
Described MCF or the control of described medium are resolved entity and according to described mapping relations sip message are mapped as corresponding RTSP order, be specially: the corresponding relation of entity according to SIP BYE message in the described mapping relations and RTSP TEARDOWN order resolved in described MCF or the control of described medium, and described SIPBYE message maps is RTSP TEARDOWN order;
Described MDF orders according to described RTSP TEARDOWN, removes the pairing media delivery connection session of media business that described user terminal is asked.
5. method as claimed in claim 2, it is characterized in that, described user terminal sends sip message, is specially: described user terminal sends sip message according to the request that the user suspends the Streaming Media of the professional correspondence of playing media, wherein carries RTSP PAUSE command information;
Described MCF or the control of described medium are resolved entity and are RTSP PAUSE order from the RTSP order that described sip message parses;
Described MDF orders according to described RTSP PAUSE, suspends the Streaming Media that transmits the media business correspondence that this user terminal asks to described user terminal.
6. method as claimed in claim 2, it is characterized in that, described user terminal sends sip message, is specially: described user terminal sends sip message according to the request that the user recovers the Streaming Media of the professional correspondence of playing media, wherein carries RTSP PLAY command information;
Described MCF or the control of described medium are resolved entity and are RTSP PLAY order from the RTSP order that described sip message parses;
Described MDF orders according to described RTSP PLAY, and the Streaming Media that suspends the media business correspondence of asking to this user terminal of described user terminal transmission is recovered to transmit.
7. method as claimed in claim 2, it is characterized in that, described user terminal sends sip message, is specially: described user terminal sends sip message according to the request of the Streaming Media of user's fast-forward play media business correspondence, wherein carries RTSP FORWARD command information;
Described MCF or the control of described medium are resolved entity and are RTSP FORWARD order from the RTSP order that described sip message parses;
Described MDF orders according to described RTSP FORWARD, transmits the stream medium data of the media business correspondence that this user terminal asked to described user terminal with fast-forward mode.
8. as claim 5,6 or 7 described methods, it is characterized in that the RTSP order of carrying in the described sip message is carried in the message body of described sip message.
9. as claim 5,6 or 7 described methods, it is characterized in that described sip message is re-INVITE message or INFO.
10. a media control system is applied to the IMS system, it is characterized in that, comprising:
Realize the functional entity of medium control, be used to receive the sip message that is used to control this media business that user terminal sends at its media business of asking, and according to the mapping relations of described sip message and RTSP order, described sip message is mapped as corresponding RTSP order, perhaps from this sip message, parses the RTSP order; Then, send to medium transmitting function entity MDF with shining upon or resolving the RTSP order that obtains;
MDF is used for according to the RTSP order that receives the media business that described user terminal is asked being controlled.
11. media control system as claimed in claim 10 is characterized in that, described sip message is the SIP INVITE;
The functional entity of described realization medium control specifically is used for: the corresponding relation according to described mapping relations SIP INVITE and RTSP SETUP order is mapped as the RTSPSETUP order with described SIP INVITE;
Described MDF specifically is used for: according to described RTSP SETUP order, for the media business that described user terminal is asked is set up the media delivery connection session.
12. media control system as claimed in claim 10 is characterized in that, described sip message is a SIP BYE message;
The functional entity of described realization medium control specifically is used for: according to the corresponding relation of described mapping relations SIP BYE message and RTSP TEARDOWN order, be the RTSPTEARDOWN order with described SIP BYE message maps;
Described MDF specifically is used for: according to described RTSP TEARDOWN order, remove the pairing media delivery connection session of media business that described user terminal is asked.
13. media control system as claimed in claim 10 is characterized in that, carries RTSP PAUSE command information in the message body of described sip message;
The functional entity of described realization medium control specifically is used for: parse the RTSPPAUSE order from described sip message;
Described MDF specifically is used for: according to described RTSP PAUSE order, suspend the Streaming Media that transmits the media business correspondence that this user terminal asks to described user terminal.
14. media control system as claimed in claim 10 is characterized in that, carries RTSP PLAY command information in the message body of described sip message;
The functional entity of described realization medium control specifically is used for: the RTSP order that parses from described sip message is RTSP PLAY order;
Described MDF specifically is used for: according to described RTSP PLAY order, the Streaming Media that suspends the media business correspondence of asking to this user terminal of described user terminal transmission is recovered to transmit.
15. media control system as claimed in claim 10 is characterized in that, carries RTSP FORWARD command information in the message body of described sip message;
The functional entity of described realization medium control specifically is used for: the RTSP order that parses from described sip message is RTSP FORWARD order;
Described MDF specifically is used for: according to described RTSP FORWARD order, transmit the stream medium data of the media business correspondence that this user terminal asked to described user terminal with fast-forward mode.
16., it is characterized in that the described sip message that the functional entity of described realization medium control receives is re-INVITE message or INFO as claim 13,14 or 15 described media control systems.
17., it is characterized in that the entity of described realization medium control is media control function entity MCF as each described media control system of claim 10-15;
Perhaps, the entity of described realization medium control comprises: entity is resolved in MCF and the medium control that is connected with MCF; Described MCF sends to described medium control with the sip message that receives and resolves entity, and described medium control parsing entity will shine upon or resolve the RTSP order that obtains and send to described MDF.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910242301.4A CN102088447A (en) | 2009-12-08 | 2009-12-08 | Media control method and system in IMS (IP multimedia subsystem) |
| PCT/CN2010/079563 WO2011069450A1 (en) | 2009-12-08 | 2010-12-08 | Method, system and apparatus for media control in ip multimedia subsystem |
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| CN200910242301.4A CN102088447A (en) | 2009-12-08 | 2009-12-08 | Media control method and system in IMS (IP multimedia subsystem) |
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| CN102088447A true CN102088447A (en) | 2011-06-08 |
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| CN200910242301.4A Pending CN102088447A (en) | 2009-12-08 | 2009-12-08 | Media control method and system in IMS (IP multimedia subsystem) |
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| CN (1) | CN102088447A (en) |
| WO (1) | WO2011069450A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104994067A (en) * | 2015-05-25 | 2015-10-21 | 南京邮电大学 | System and method for SIP network to access RTSP monitoring network |
| CN113329040A (en) * | 2021-08-03 | 2021-08-31 | 江苏怀业信息技术股份有限公司 | Protocol conversion method and device in media stream forwarding process |
| CN114448949A (en) * | 2022-02-18 | 2022-05-06 | 南京甄视智能科技有限公司 | Method and system for solving streaming phenomenon of client |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101222418A (en) * | 2007-01-10 | 2008-07-16 | 华为技术有限公司 | Method, system and signaling gateway for RTSP client terminal access to SIP media resource |
| CN101803324A (en) * | 2007-09-20 | 2010-08-11 | 朗讯科技公司 | Method and system for processing sip message with rtsp encapsulation in ims |
| EP2091203A1 (en) * | 2008-02-12 | 2009-08-19 | Koninklijke KPN N.V. | Method and system for transmitting a multimedia stream |
| CN101547189B (en) * | 2008-03-28 | 2011-08-10 | 华为技术有限公司 | Method, system and device for establishing CoD service |
-
2009
- 2009-12-08 CN CN200910242301.4A patent/CN102088447A/en active Pending
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104994067A (en) * | 2015-05-25 | 2015-10-21 | 南京邮电大学 | System and method for SIP network to access RTSP monitoring network |
| CN104994067B (en) * | 2015-05-25 | 2018-05-18 | 南京邮电大学 | SIP network accesses the system and method for RTSP monitoring networks |
| CN113329040A (en) * | 2021-08-03 | 2021-08-31 | 江苏怀业信息技术股份有限公司 | Protocol conversion method and device in media stream forwarding process |
| CN114448949A (en) * | 2022-02-18 | 2022-05-06 | 南京甄视智能科技有限公司 | Method and system for solving streaming phenomenon of client |
| CN114448949B (en) * | 2022-02-18 | 2024-03-01 | 小视科技(江苏)股份有限公司 | Method and system for solving streaming phenomenon of client |
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| Publication number | Publication date |
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| WO2011069450A1 (en) | 2011-06-16 |
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