CN100450210C - R4 network system and method for provoding medium resource - Google Patents
R4 network system and method for provoding medium resource Download PDFInfo
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- CN100450210C CN100450210C CNB2005101350056A CN200510135005A CN100450210C CN 100450210 C CN100450210 C CN 100450210C CN B2005101350056 A CNB2005101350056 A CN B2005101350056A CN 200510135005 A CN200510135005 A CN 200510135005A CN 100450210 C CN100450210 C CN 100450210C
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Abstract
The invention discloses a method for providing media resources in the network R4, which includes: the business entities of network R4 sends controlling orders about media resource to the entities of multimedia resource. The controller of the described multimedia resource analytic the above controlling orders and instructs the processor of multimedia resource to provide media resource. The described processor completes the processing of multimedia resource according to the controlling orders, and completes the loading of media resource at terminals through media gateway.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of R4 network system and the method for media resource is provided.
Background technology
Be divided into circuit domain (CS territory) and two territories of packet domain (PS territory) in 3GPP R4 stage UMTS core net, core net CS territory (between the moving exchanging center MSC) based on the Time Division Multiplexing transmission, the PS territory is based on the non real-time data service of IP transmission bearer.
From the 3GPP R5 stage, the UMTS core net is divided into CS, PS and three subsystems of IP Multimedia System (IMS), wherein IMS is an IP Multimedia System that is positioned in the WCDMA network of 3GPPR5/R6 standard definition on the PS territory, adopt the bearer path of packet domain for its upper strata control signaling and media delivery, introduce Session Initiation Protocol as professional control protocol, utilize simple, the easy expansion of SIP, media combination characteristics easily, by business control is separated with carrying control, provide abundant multimedia service.
Processing for media resource under the R4 network architecture is divided into two parts: the processing of the Media Stream that circuit domain basic service and supplementary service relate to is finished by the MGW of end office (EO); The media resource of the value-added service outside basic service and the supplementary service is provided by special resource function module gsmSRF (gsm Specialized ResourceFunction).
Consult shown in Figure 1ly, in the network transition of R4, MSC is split as MSC Server and MGW two parts at R99.MSC Server finishes the controlled function of the Media Stream that circuit domain basic service and supplementary service relate to, and the processing and the user plane bearer of Media Stream finished in the order that MGW accepts MSC Server.This change has realized that the control carrying of the Media Stream that circuit domain basic service and supplementary service relate to separates.
In the R4 network, MSC Server has following characteristics:
(1) inherited all circuit domain control surface functions of R99MSC, portion does not realize the function of exchange (being realized with multiple bearing mode by MGW) of loading end within it.
(2) externally provide pure signaling interface.
(3) integrated R99VLR function is to handle mobile subscriber business data and CAMEL related data.
(4) control of carrying terminal and Media Stream among the MGW that circuit domain basic service and supplementary service are related to is that the H.248 agreement by the 3G expansion realizes.
(5) and between other MSC server control by the station to station call of BICC signaling realization bearer independent.
(6) support MGW and registration of self and failure recovery operation, and can require MGW initiatively to report its termination property.
In the R4 network, GMSC Sever has following characteristics:
(1) forms by calling control and the mobile control of GMSC, only finish the signaling process function of GMSC.
(2) has the function of inquiring position information.When being called out as mobile station MS, network then needs the inquiry by GMSC server as not inquiring about the HLR under this user, then calling is transferred among the MSC server of present registration.
(3) continuing by media channel among the control of the agreement H.248 MGW.
(4) protocol interconnection of support BICC and ISUP;
In the R4 network, MGW is the gateway switching equipment of user's loading end of 3G R4 core net, is positioned at the boundary that 3G CS core net is led to wireless access network (UTRAN/BSS) and conventional fixed net (PSTN/ISDN); Be the bearer path of Iu interface, PSTN/PLMN interface, and the destination node of Packet Based Network Media Stream (as rtp streaming), have following characteristics:
(1) the not responsible any mobile subscriber of the MGW business logic processing of being correlated with.
(2) MGW can change, carry functions such as control and operation exchange by support media, as GSM/UMTS various types of voice codec, and echo canceller, IWF, the exchange of Access Network and core-network side terminal media stream, meeting bridge, playback number receiving resource etc.
(3) MGW can pass through H.248 signaling, accepts the resource control command from MSC server and GMSC server.
(4) support the realization of circuit domain business on multiple transmission medium (based on AAL2/ATM, TDM, or), necessary carrying control is provided based on RTP/UDP/IP.
In R4 network application layer mobile intelligent net system, resource function module gsmSRF can provide abundant specialized media resource for the various IN services outside circuit domain basic service and the supplementary service, and all specialized media resources are managed concentratedly.Resource function module gsmSRF can be integrated in the inner realization of MSC Server with Service Switching Function module SSF, shown in Fig. 2 A, also can be connected with message control module SCF by independent equipment realization and with MSC Sever, should realize separately that the equipment of SRF function was called ip intelligent peripherals IP (Intelligent Peripheral), shown in Fig. 2 B.
If gsmSRF is integrated in (G) MSC Server inside, then gsmSRF is split as gsmSRFServer and MGW two parts, and gsmSRF Server termination CAMEL Application Part also is converted to signaling control MGW; MGW is responsible for providing some simple media resources and finishes single resource operation such as the detection of independent dtmf signal sound.Be integrated in the interior implementation of (G) MSC Server with gsmSRF and compare, independent IP realizes that the resource capacity that can provide is bigger, and flexible playback centralized management can be provided.
Because existing media resource apparatus MGW and ip intelligent peripherals are only supported the professional media resource ability of conventional telecommunications net definition, therefore, along with the introducing of various new business (as the video mailbox), the media resource ability of existing equipment can't meet the demands, and be unfavorable for carrying out of new business.
In addition, the managing medium resource that relates at R99 basic service addition service in the network evolution of R4 has realized that carrying (MGW) control (MSC Server) is separated; GsmSRF Server is integrated in the inner mode that realizes of (G) MSC Server and has also embodied this thought, though and independent IP finishes simultaneously that resource provides and resource management, do not realize this function, inconsistent with next generation network evolution direction.
In the IMS network architecture; the continue valued added applications service of class of all non-basic sessions all provides in the application server AS entity; CSCF series (the P-CSCF of session control layer; S-CSCF; I-CSCF) be the business triggering route of basic IMS SIP session to the AS of each different value-added service logics of operation; and the registration that can share of all valued added applications; the fail safe protection; QoS control; functions such as basic session route provide a common platform; guarantee that the design that each AS supplier only needs to pay close attention to value-added service logic itself gets final product application server AS, AS comprises three types: the SIP Application Server that brand-new value-added service directly is provided for IMS user based on Session Initiation Protocol; insert traditional SCP by the intercommunication that realizes SIP and INAP/CAP and think that IMS user provides the IM-SSF of the original value-added service of Circuit Switching Network's intelligent network; and provide the third party of value-added service to carry application server OSA Application Serve by the Parlay/OSA interface that calls IMS Virtual network operator SIP capable server.
The user can enjoy abundant multimedia service in the IMS network architecture, the valued added applications service logic that provides all non-basic sessions to continue class for IMS user by AS wherein, Multimedia resource function controller (MRFC) (MRFC) and Multimedia resource function processor (MRFP) (MRFP) provide professional required media resource for the user, they in the position in the network as shown in Figure 3 (for the purpose of clear, among Fig. 3 and unlisted all network elements between interface.)。
H.248, Multimedia resource function controller (MRFC) (MRFC) is by controlling the media resource on the Multimedia resource function processor (MRFP) (MRFP), parsing is from the SIP resource control command of other S-CSCF and AS, is converted to the corresponding control command of MRFP and produces corresponding charge information.MRFP is as the network public resource, control is carried with IP user's face between other IMS terminals or the IM-MGW and is connected, under MRFC control, provide resource service, comprise that Media Stream mixes (Multi-Party Conference), multimedia messages is play (playback, Streaming Media), media content dissection process (code conversion, speech recognition etc.).
Though MRFC/MRFP can satisfy the media resource Capability Requirement of various value-added services, but the MRFC/MRFP prior art is to be positioned at the IMS territory, and provide service for the IMS network user, can't provide the media resource business to CS territory user in the legacy circuit-switched networks, CS territory user can't enjoy media resource abundant among the MRF.
Summary of the invention
The invention provides a kind of R4 network system and the method for media resource is being provided, to solve the problem that the user who has now in the R4 network can't enjoy the media resource business in the similar IMS network.
The invention provides following technical scheme:
A kind of R4 network system comprises: mobile switching centre, be connected with service control point, and be used to provide the signaling controlled function; Media gateway is connected with described mobile switching centre, is used to provide media stream bearing; Service control point is connected with described mobile switching centre, is used to provide IN service; Wherein, also comprise: the multimedia resource entity is connected with media gateway with described mobile switching centre; And, this multimedia resource entity comprises multimedia resource controller and multimedia resource processor, described multimedia resource controller is used to receive the media resource control command that mobile switching centre sends, described multimedia resource processor and described media gateway are separate, are used for finishing the media resource processing and providing media resource by described media gateway according to the control command of described multimedia resource controller.
Described multimedia resource entity also is connected with described service control point, and is received the media resource control command of service control point transmission and controlled described multimedia resource processor by the multimedia resource controller.
Described R4 network system also comprises: application server, be connected with mobile switching centre with described multimedia resource entity, be used to provide the valued added applications service, perhaps, finish medium by the control of the multimedia resource controller in multimedia resource entity multimedia resource processor and handle and provide media resource by issuing the media resource control command to the multimedia resource entity.
Described multimedia resource controller and described multimedia resource processor are set to one; Perhaps, described multimedia resource controller and described multimedia resource processor are respectively the independent physical entity that is provided with; Perhaps, described multimedia resource processor is the independent physical entity that is provided with, and described multimedia resource controller is arranged in other network entities.
Described multimedia resource processor is connected with a plurality of media gateway.
Described multimedia resource processor is a plurality of, and is controlled by described multimedia resource controller.
A kind of R4 network system provides the method for media resource, comprises the steps:
The network entity of the request of managing business in the R4 network sends the media resource control command to the multimedia resource entity;
Multimedia resource controller in the described multimedia resource entity is resolved described media resource control command, and indication multimedia resource processor provides media resource;
Described multimedia resource processor is finished multimedia resource according to described media resource control command and is handled, and is accomplished to the media resource carrying of user terminal by media gateway.
For the multimedia resource entity in the circuit domain, described network entity sends the media resource control command to described multimedia resource entity by Circuit Switching Network's number segment routing mode.
The network entity of the described request of managing business is a service control point, this service control point directly sends the media resource control command to described multimedia resource entity, and perhaps this service control point sends the media resource control command by mobile switching centre to described multimedia resource entity.
The network entity of the described request of managing business is for providing the application server of valued added applications, this application server directly sends the media resource control command to described multimedia resource entity, and perhaps this application server sends the media resource control command by mobile switching centre to described multimedia resource entity.
The network entity of the described request of managing business is a mobile switching centre, and this mobile switching centre directly sends the media resource control command to described multimedia resource entity according to configuration data after receiving service request.
Beneficial effect of the present invention is as follows:
Carrying control when 1, having realized that the value-added service media resource is realized by independent peripheral hardware is separated, and meets next generation network evolution direction, makes each Business Entity division of labor clear and definite and can be respectively at different technique direction development.
2, the media resource apparatus enhanced media resource capability that had in the CS of Circuit Switching Network territory can satisfy the demand of various new business, is convenient to carrying out and can realizing that media resource is shared in the network of new business.
Description of drawings
Fig. 1 is for having the R99 network now to R4 network evolution schematic diagram;
Fig. 2 A is the schematic diagram that gsmSRF is integrated in MSC Server inside in the prior art;
Fig. 2 B is the schematic diagram that gsmSRF realizes by independent IP in the prior art;
Fig. 3 is the schematic diagram of IMS network in the prior art;
Fig. 4 A, Fig. 4 B are the structural representation of R4 network among the present invention;
Fig. 5 is a flow chart of being realized playback in the embodiment of the invention by the multimedia resource entity;
Fig. 6 is for being set up the flow chart of Multi-Party Conference by the multimedia resource entity in the embodiment of the invention;
Fig. 7 is for being carried out the flow chart of encoding and decoding conversion by the multimedia resource entity in the embodiment of the invention.
Embodiment
Consult shown in Fig. 4 A, the R4 network architecture of the present invention is except comprising functional entitys such as existing business control point SCP, GMSC (gateway mobile switching center) GMSC, moving exchanging center MSC and media gateway MGW, also comprise and provide the multimedia resource of service media resource management entity MRE, this MRE to comprise multimedia resource controller (module) MREC and multimedia resource processor (module) MREP; Wherein, MREC is connected with MSC with GMSC, and MREP is connected with MGW, and further MREC also can be connected with SCP.
Consult shown in Fig. 4 B, R4 network of the present invention further comprises application server AS on the basis of Fig. 4 A, and this AS is connected with MREC with GMSC respectively.
Be that example is elaborated mainly below with Fig. 4 B.
The MREC entity can integrate (as shown in Fig. 4 B) by MREP in physics realization, and perhaps, MREC and MERP also can distinguish independently physical entity, and perhaps, MRE also can integrate with (G) MSCServer/SCP/AS etc.MREC resolves from AS, and the information that SCP or MSC Server receive is also controlled media stream resources among the MREP.
MREP entity and MGW are separate, and a MREP can be connected with a plurality of MGW.MREP can finish the media resource ability that MGW can't provide in the new business demand, and physics realization can be integrated with MREC, also can be the physical entity that is provided with separately.MREP carries out medium under the control of MREC handles, and its function comprises:
A, provide MREC control required resource, as: voice Announce resource, meeting Conference resource and encoding and decoding CODEC resource etc.;
B, be mixed into Media Stream, as, Multi-Party Conference etc.;
C, as the source end, send Media Stream, as, multimedia warning tone etc.;
D, processing Media Stream, as, audio coding decoding conversion, Media Analysis etc.
Can be the relation of one-to-many between MREC entity and the MREP entity, promptly a MREC can manage a plurality of MREP entities.
Providing the AS entity of service media resource management can be integrated with SCP in physics realization, also can be independent physical entity, and this AS provides but is not limited to following function:
A, provide various value-added services for the terminal use:
B, provide and MSC Server between interface, be used to receive the business that MSC Server reports and trigger message, carry out business and control;
C, provide and MREC between interface, be used for issuing the media resource control command to MREC.
Introduce MRE and AS in the R4 network after, MSC Server supports SIP or other applicable protocols by protocol extension, supporting and the AS intercommunication, and introduces various new business by software upgrading, and these business may be used the media resource ability of MRE.
Interface Interface1 is used for MREC and receives media resource control command from AS between MREC and the AS, this interface during for external interface can but be not limited to realize with Session Initiation Protocol, if internal interface can also be realized by self-defined internal interface.
Interface Interface2 is used for the media resource control command of MREC reception from MSC Server between MREC and the MSC Server, when this interface is external interface and Nc interface be consistent and support the TUP/ISUP/BICC protocol interconnection, physical carrier can use TDM/IP to realize, if internal interface can also be realized by self-defined internal interface.
Interface Interface3 is used for carrying out Media Stream when mutual with the user between MREP and the MGW, finishes the IP carrying of Media Stream, and this interface and Nb interface are consistent, and promptly support the RTP/AAL2/AMR protocol interconnection, and physical carrier can use TDM/IP/ATM to realize.
Interface Interface4 is used for MREC indication MREP and finishes corresponding media resource and handle between MREC and the MREP, this interface during for external interface can but be not limited to realize with agreement H.248, if internal interface can also be realized by self-defined internal interface.
Interface Interface5 is used for MSC Server and carries out value-added service and trigger between MSC Server and the AS, this interface can but be not limited to realize with Session Initiation Protocol.
Interface Interface6 is used for the media resource control command of MREC reception from SCP between MREC and the SCP, realizes with CAMEL Application Part when this interface is external interface, if internal interface can also be realized by self-defined internal interface.
After in the R4 network architecture, introducing MRE/ and AS:
The mode of MREC entity management MREP comprises:
Initiatively register to MREC when A, MREP change (resource capability changes, and equipment state changes) at state, log-on message comprises resource capability and MREP address information.
A MREP can have multiple resource capability, also different media resources can be distributed on the different MREP;
B, MREC media resource ability and the address information according to the MREP of its storage when receiving the control command of AS/SCP/MSC Server sent resource request to the MREP that meets the demands.
Professional media resource control can be finished by one of following several modes or their combination in any:
1, AS accepts business when triggering:
Accepted the service trigger request of MSC Server as AS, when finding that this service needed media resource is supported, can initiate resource request to the MREC of portion's registration within it according to the service logic of its inside, perhaps this request is mail to (G) MSC Server, by (G) MSC Server this request is transmitted, MREC resolves this request, be converted to the form (H.248 packet format) that MREP can discern, indication MREP carries out corresponding medium to be handled, the media resource that MREP provides MREC to require, and by and MGW between the link path finish media resource to terminal use's carrying, wherein AS/ (G) MSC Server realizes by traditional Circuit Switching Network's number segment routing mode for the discovery of MREC in the network of CS territory.
2, SCP accepts business when triggering:
Accepted the service trigger request of MSC Serve as SCP, when finding that this service needed media resource is supported, can business indication and MRE address information etc. be sent to (G) MSC Server according to the business control of its inside, (G) MSC Server changes this request, and transmits to the MREC of appointment; Perhaps, SCP directly initiates resource request to MREC, MREC resolves this request, be converted to the form that MREP can discern, indication MREP carries out corresponding medium to be handled, the media resource that MREP provides MREC to require, and by and MGW between the link path finish the carrying of media resource to the terminal use.Wherein SCP realizes by traditional Circuit Switching Network's number segment routing mode for the discovery of MREC in the network of CS territory;
3, (G) MSC Server directly triggers by data configuration:
(G) MSC Server can pass through the static table data configuration, appointment for some value-added service if when needing MRE that media resource is provided, do not pass through SCP or AS but the directly MREC of appointment in data configuration table initiation media resource request, MREC receives that carrying out signaling conversion indication MREP after the request carries out corresponding medium and handle, the media resource that MREP provides MREC to require, and by and MGW between the link path finish the carrying of media resource to the terminal use.Wherein (G) MSC Server realizes by traditional Circuit Switching Network's number segment routing mode for the discovery of MREC in the network of CS territory.
Consult shown in Figure 5, the SCP triggering of accepting business, as follows to the main process of calling subscriber's playback:
Step 4: after called MS C b receives the request of IAM Incoming, the called number that carries in the analysis and judgement message, if called be the Ring Back Tone service user, initiate professional triggering to SCP.
The information such as MRF address of step 5:SCP portion's registration within it return to called MS C b by professional triggered response message.
Step 10:MREC control MREP by and MGW between the caller of chain road direction send out the CRBT sound of called custom-made.
Consult shown in Figure 6, the AS triggering of accepting business, the main process of setting up Multi-Party Conference following (not shown UE):
Step 1:MSC receives that UE-1 sets up the MPTY request message, and indication is wished to add UE-2 in the request, and UE-3 is in this meeting.
Step 2-3:MSC returns Temporary Response and request is forwarded to AS.
Step 4:AS carries out the related service logic and allows to set up this meeting.
Step 5-8:AS sends request to MREC, and MPTY is set up in indication, obtains this meeting identification, and prepares for UE-2 inserts.
Step 9-13:AS sends between request and foundation and the UE-2 UE-2 and connects.
Step 14-17:AS returns response confirmation message.
The meeting identification that step 18-21:AS applies for above using sends resource request to MREC, prepares for UE-3 inserts.
Step 22-26:AS sends between request and foundation and the UE-3 UE-3 and connects.
Step 27-30:AS returns response confirmation message.
The meeting identification that step 31-34:AS applies for above using sends resource request to MREC, prepares for UE-1 inserts meeting.
Step 35-36: UE-1 is returned this meeting set up successfully.
Step 37: set up meeting.
Step 38-41:AS returns acknowledge message.
Consult shown in Figure 7ly, calling and called need to carry out encoding and decoding conversion in call establishment main process is as follows:
Step 1:MSC receives calling party's service request.
Step 2:MSC returns Temporary Response to caller.
This request is triggered to AS to step 3:MSC according to user contracting data.
The service logic of step 4:AS continues to handle this service request.
Step 5:AS sends request to the opposite end callee by MSC.
Step 6:MSC transmits this request.
Step 7: the callee returns and can't accept request, and the coded system that provides in pointing out not support to ask in response message, and carries the encoding scheme of oneself supporting.
Step 8:MSC returns acknowledge message to the callee.
Step 9: callee's response is forwarded to AS.
Step 10:AS service logic is found to exist MREC can finish this encoding and decoding conversion.
Step 11:AS returns acknowledge message to MSC.
Step 12-17:AS sends request to MREC, requires to set up encoding and decoding conversion for the callee.
Step 18-25:AS sends request to called, requires to set up session between callee and MRE.
Step 26-29:AS sends request to MREC, requires to set up encoding and decoding conversion for the calling party.
Step 30-38: call setup, calling and called normal talking.
The present invention has realized that by introduce the MREC/MREP functional entity in the R4 network architecture carrying control when media resource is realized by independent peripheral hardware in the value-added service is separated; By raising to the media resource ability, make media resource apparatus satisfy the business demand of user Geng Gao, be convenient to various new business and carry out.
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 (11)
1, a kind of R4 network system comprises:
Mobile switching centre is connected with service control point, is used to provide the signaling controlled function;
Media gateway is connected with described mobile switching centre, is used to provide media stream bearing;
Service control point is connected with described mobile switching centre, is used to provide IN service;
It is characterized in that, also comprise:
The multimedia resource entity is connected with media gateway with described mobile switching centre; And, this multimedia resource entity comprises multimedia resource controller and multimedia resource processor, described multimedia resource controller is used to receive the media resource control command that mobile switching centre sends, described multimedia resource processor and described media gateway are separate, are used for finishing the media resource processing and providing media resource by described media gateway according to the control command of described multimedia resource controller.
2, R4 network system as claimed in claim 1, it is characterized in that, described multimedia resource entity also is connected with described service control point, and is received the media resource control command of service control point transmission and controlled described multimedia resource processor by the multimedia resource controller.
3, R4 network system as claimed in claim 1 is characterized in that, also comprises:
Application server, be connected with mobile switching centre with described multimedia resource entity, be used to provide the valued added applications service, perhaps, finish medium by the control of the multimedia resource controller in multimedia resource entity multimedia resource processor and handle and provide media resource by issuing the media resource control command to the multimedia resource entity.
As claim 1,2 or 3 described R4 network systems, it is characterized in that 4, described multimedia resource controller and described multimedia resource processor are set to one; Perhaps, described multimedia resource controller and described multimedia resource processor are respectively the independent physical entity that is provided with; Perhaps, described multimedia resource processor is the independent physical entity that is provided with, and described multimedia resource controller is arranged in other network entities.
5, R4 network system as claimed in claim 4 is characterized in that, described multimedia resource processor is connected with a plurality of media gateway.
6, R4 network system as claimed in claim 4 is characterized in that, described multimedia resource processor is a plurality of, and is controlled by described multimedia resource controller.
7, a kind of R4 network system described in claim 1 provides the method for media resource, it is characterized in that, comprises the steps:
The network entity of the request of managing business in the R4 network sends the media resource control command to the multimedia resource entity;
Multimedia resource controller in the described multimedia resource entity is resolved described media resource control command, and indication multimedia resource processor provides media resource;
Described multimedia resource processor is finished multimedia resource according to described media resource control command and is handled, and is accomplished to the media resource carrying of user terminal by media gateway.
8, method as claimed in claim 7 is characterized in that, for the multimedia resource entity in the circuit domain, described network entity sends the media resource control command to described multimedia resource entity by Circuit Switching Network's number segment routing mode.
9, as claim 7 or 8 described methods, it is characterized in that, the network entity of the described request of managing business is a service control point, this service control point directly sends the media resource control command to described multimedia resource entity, and perhaps this service control point sends the media resource control command by mobile switching centre to described multimedia resource entity.
10, as claim 7 or 8 described methods, it is characterized in that, the network entity of the described request of managing business is for providing the application server of valued added applications, this application server directly sends the media resource control command to described multimedia resource entity, and perhaps this application server sends the media resource control command by mobile switching centre to described multimedia resource entity.
11, as claim 7 or 8 described methods, it is characterized in that, the network entity of the described request of managing business is a mobile switching centre, and this mobile switching centre directly sends the media resource control command to described multimedia resource entity according to configuration data after receiving service request.
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| CNB2005101350056A CN100450210C (en) | 2005-12-23 | 2005-12-23 | R4 network system and method for provoding medium resource |
| PCT/CN2006/003501 WO2007071188A1 (en) | 2005-12-23 | 2006-12-20 | R4 network system and method for providing media resource |
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| CN101472169B (en) * | 2007-12-29 | 2012-04-04 | 华为技术有限公司 | Method and device for providing support to embed medium stream in control stream |
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Also Published As
| Publication number | Publication date |
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| CN1988687A (en) | 2007-06-27 |
| WO2007071188A1 (en) | 2007-06-28 |
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