CN101854288A - Control method and system for stream media in telecommunications network - Google Patents
Control method and system for stream media in telecommunications network Download PDFInfo
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Abstract
The invention discloses a control system for a stream media in a telecommunications network, which comprises a control network side of the stream media and user equipment (UE). The control network side of the stream media comprises a service control module SCF, a plurality of media control modules MCF and a plurality of media delivery modules MDF; the SCF receives a stream media service request sent by the UE, selects an MCF, and retransmits the stream media service request to an MCF; the MCF selects the MDF, and retransmits the received stream media service request to the MDF; the MDF receives the stream media service request, then transmits the requested stream media content according to the instruction of the MCF, and reports the stream media content information and the load thereof to the MCF; and the UE transmits the stream media service request to the SCF and receives the stream media content from the MDF. In addition, the invention also discloses a control method of the stream media in the telecommunications network, thereby ensuring a controllable and manageable stream media in the telecommunications network and the quality assurance.
Description
Technical field
The present invention relates to the information Control technology, particularly the Streaming Media control technology in the telecommunications network.
Background technology
At present, telecommunications network provides abundant telecommunication service as one of important foundation facility of country to users.Along with the development of telex network demand and the progress of telecommunication technology, streaming media service becomes one of emphasis business in the Next Generation Telecommunication Networks network (NGN).But provide the carrier class streaming media service with quality of service assurance, controlled pipe to the user, streaming medium content transmits in the telecommunications network becomes critical problem.
The distribution of streaming medium content is finished by content delivery network (CDN).CDN appears in the Internet at first, and being increases the new network architecture of one deck in existing the Internet.By the CDN network, the website is published to streaming medium content near user's network " edge ", makes the user can obtain needed streaming medium content nearby, solves the network congestion situation, improves the response speed of user capture website.Because CDN can solve the slow-footed problem of user capture websites response little owing to the network bandwidth, that the user capture amount is big, the unequal reason of network point distribution is caused technically comprehensively, so in the streaming media service of telecommunications tissue design is realized, also finish the content distribution of Streaming Media by the CDN network.
CDN adopts client-server (C/S) pattern.Although traditional C DN distributes service ability and service content on network, can quicken the distribution of streaming medium content to a certain extent, improve service quality.But because its core remains the framework based on C/S, the extended capability of its service depends on the continuous deployment of distribution node, has caused the cost of CDN service ability expansion very high thus, needs constantly investment.Simultaneously, characteristics such as user capture is to have randomness, and is sudden, and traditional C DN does not possess the ability of Dynamic Elastic expansion, is difficult to fundamentally promote the efficient of CDN.
Summary of the invention
In view of this, main purpose of the present invention is to provide the control system of the Streaming Media in a kind of telecommunications network, the streaming media service of solution in existing telecommunications network is along with the increase of Streaming Media number of users, network performance descends, and the problem of streaming medium content or the decline of Streaming Media transfer rate appears obtaining in the user.
A main purpose of the present invention is to provide the control method of the Streaming Media in a kind of telecommunications network, the streaming media service of solution in existing telecommunications network is along with the increase of Streaming Media number of users, network performance descends, and the problem of streaming medium content or the decline of Streaming Media transfer rate appears obtaining in the user.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
Streaming Media control system in a kind of telecommunications network is characterized in that, comprises Streaming Media Control Network side and user terminal UE,
Described Streaming Media Control Network side comprises message control module SCF, a plurality of media management module MCF and a plurality of medium delivery module MDF;
SCF is used to receive the streaming media service request that UE sends, and select MCF according to service-domain under the UE, and the forwarding stream media service request is to described MCF;
MCF is used for the Information Selection MDF according to the telecommunications network streaming media service, and the streaming media service request of receiving is forwarded to described MDF;
MDF, receive the streaming media service request that described MCF transmits after, transmit the streaming medium content of being asked according to the indication of described MCF to UE, and periodically self streaming medium content information and loading condition reported described MCF;
UE sends the streaming media service request to described SCF, receives the streaming medium content that is sent by described MDF.
Described MCF carries out the classification setting according to number of users, the cold and hot degree of streaming medium content, and as described MCF when being rudimentary, described MCF is responsible for searching to senior MCF the streaming medium content of UE request.
Described MDF carries out classification according to the classification setting of MCF, and as described MDF when being rudimentary, under the control of described MCF, described MDF obtains the streaming medium content that needs from MDF senior or at the same level.
During described UE right and wrong P2P UE, further comprising resource and admission control module RACF, link to each other with non-P2P UE, receive the resource reservation request of described SCF, is that the streaming medium content of non-P2P UE is downloaded and carried out resource reservation.
When described UE is P2P UE, further comprise P2P control module P2P CF, described MCF and P2PCF are man-to-man relations, information according to streaming media service is the address list that described P2P UE calculates the streaming medium content burst, and the address list of described streaming medium content burst is sent to described P2P UE.
Further comprise performance measurement module MPMF, the QoS information of the streaming media service that MPMF will obtain from the access network of P2P UE is sent to described P2P CF place.
Streaming Media control method in a kind of telecommunications network is characterized in that, comprises the steps:
A, user terminal UE initiate the streaming media service request to message control module SCF;
B, SCF select media management module MCF according to service-domain under the described UE;
C, SCF are forwarded to described MCF with the streaming media service request;
D, described MCF carry out scheduling of resource in conjunction with the streaming medium content of UE request, the loading condition of each service-domain MDF, and described MCF selects corresponding delivery module, and send response message to SCF;
E, SCF are sent to UE with the response message that obtains;
F, UE are according to receiving that the address of the streaming medium content burst in the response message obtains streaming medium content.
Behind execution in step A, comprise that further it is that described streaming media service carries out resource reservation that SCF utilizes resource and admission control module RCF.
The described MCF of step D selects corresponding delivery module, and sends response message to SCF, may further comprise the steps:
It is medium delivery module MDF that d1, described MCF select corresponding delivery module;
D2, described MDF respond described MCF after the streaming medium content that is ready to described UE request;
D3, described MCF will comprise that the response message of described MDF address sends to SCF.
MCF described in the step D selects corresponding delivery module, and sends response message to SCF, may further comprise the steps:
It is P2P control module P2P CF that D1, described MCF select corresponding delivery module, and MCF will comprise that the response message of described P2P CF address sends to SCF.
Behind the execution in step E, further may further comprise the steps:
E1, UE send the download request of P2P streaming medium content burst according to the P2P CF address in the described response message to described P2P CF;
After E2, described P2P CF received the download request of streaming medium content burst of UE, to the MDF tabulation of described MCF request streaming medium content burst, described MCF was sent to described P2P CF with the MDF tabulation of described streaming medium content burst again;
E3, described P2P CF are the address list that UE calculates the streaming medium content burst;
E4, will comprise that the response message of the address list of described streaming medium content burst is sent to UE.Behind the execution in step E2, further comprise step e:
E: described P2P CF carries out scheduling of resource according to the access network resource situation of obtaining from performance measurement module MPMF.
Behind execution in step F, comprise that further UE regularly reports the information of this terminal storage streaming medium content burst to described P2P CF.
As seen from the above technical solutions, the present invention transmits for the streaming media service of user terminal requests carries out scheduling of resource and streaming medium content neatly down by the common cooperation of message control module, media management module and medium delivery module.At non-P2P user, increase the resource and admission control module and carry out resource reservation to guarantee non-P2P user's quality of service; At P2P user, increase the P2P control module, to ensure the load balancing of flow media flux, solved Single Point of Faliure and performance bottleneck problem that telecommunications network streaming media service user sustainable growth brings effectively.The present invention increases the measurement of performance measurement module to the telecommunications network Internet resources also at more this content load mode to multiple spot of P2P, carries out QoS in conjunction with the memory location of streaming medium content and ensures.
Description of drawings
Fig. 1 is a Streaming Media control system schematic diagram in the telecommunications network;
Fig. 2 is a non-P2P user terminal Streaming Media control system schematic diagram in the telecommunications network;
Fig. 3 is a P2P user terminal Streaming Media control system schematic diagram in the telecommunications network;
Fig. 4 is a Streaming Media control method flow chart in the telecommunications network;
Fig. 5 is non-P2P user's Streaming Media control method flow chart in the telecommunications network;
Fig. 6 is P2P user's Streaming Media control method flow chart in the telecommunications network;
Workflow when Fig. 7 receives streaming medium content burst download request for media management module;
Fig. 8 is the product process of the address list of P2P control module streaming medium content burst.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
Referring to Fig. 1, Fig. 1 the invention provides Streaming Media control system schematic diagram in a kind of telecommunications network, this system comprises Streaming Media Control Network side and user terminal (UE) 104, and wherein Streaming Media Control Network side comprises media management module (MCF) 102 and the included a plurality of medium delivery modules (MDF) 103 of each service-domain in message control module (SCF) 101, each service-domain;
In whole system, a plurality of service-domains can be set according to the difference in geographical position.Each service-domain comprises a MCF102 at least.MCF can carry out the classification setting according to the cold and hot degree of UE quantity and streaming medium content in each service-domain, and as MCF when being rudimentary, rudimentary MCF is responsible for searching to senior MCF the streaming medium content of UE request.And the MDF in service-domain carries out classification according to the classification setting of MCF, and as MDF when being rudimentary, under the control of MCF, MDF obtains the streaming medium content that needs from MDF senior or at the same level.
SCF101 is responsible for the control of streaming media service.After SCF101 receives the streaming media service request of UE104, according to the MCF102 in the service-domain under these UE of information searching such as the geographical position at UE104 place, user type, and the MCF102 in the service-domain under the streaming media service request that UE104 sends is forwarded to.In whole system, a plurality of service-domains can be set.At least comprise a MCF in each service-domain.Therefore SCF101 and MCF102 are the relations of one-to-many.
MCF102 receives the streaming media service request of transmitting from SCF101, and distinguishes the UE104 type, for dissimilar UE selects different Business Processing modes.Transmit in order to carry out scheduling of resource and streaming medium content, and in the scheduling of resource process, realize load balancing, the state of the MDF103 of service-domain and the distribution situation of streaming medium content under MCF102 accurately grasps.MCF102 is the MDF103 that UE104 selects to transmit streaming medium content according to streaming medium content of being preserved in the resource load situation of streaming media service in the network, the network and the streaming media service request of UE104.MCF102 is forwarded to the streaming media service request MDF103 place that has chosen again.
After MDF103 receives the streaming media service request of being transmitted by MCF102, transmit the streaming medium content of asking to the UE104 of request Streaming Media.Preserve all or part of content of streaming medium content among the MDF103, transmit the streaming medium content of being asked to UE104 according to the indication of MCF102.MDF103 also periodically reports MCF102 with self streaming medium content information and loading condition (as the present linking number of hardware resource availability factor, medium delivery module etc.), is convenient to MCF102 and carries out scheduling of resource.Can obtain the different streaming medium contents that MDF stored by P2P mechanism between the different MDF.When preserving the streaming medium content part among the MDF, MCF can adopt P2P mechanism to obtain other parts of streaming medium content from other MDF.
UE104 sends the streaming media service request to described SCF101, receives the streaming medium content that is sent by MDF103.UE can be divided into non-P2P UE and P2P UE according to whether having the P2P function.
Designed the professional necessary resource acceptance control system RACS of carrier class among the Next Generation Telecommunication Networks NGN.RACS is important subsystem among the NGN, between professional control plane and transmission plane, NGN is transmitted resource control, provide to comprise functions such as quality of service QOS control, network address port conversion/fire compartment wall NAPT/FW control and network address translation NAT pass through.The present invention is introduced into, and makes full use of its advantage, so that it is applicable to the business of point-to-multipoint type.
Referring to Fig. 2, when UE was non-P2P UE204, SCF201 and resource and admission control module RACF205 were mutual, for non-P2P UE204 provides quality of service QoS resource reservation, to ensure the streaming media service quality of non-P2PUE204.RACF205 receives the resource reservation request of SCF201, downloads for the streaming medium content of non-P2P UE204 and carries out resource reservation, to ensure the streaming media service quality.
Referring to Fig. 3, UE is P2P UE 304, and P2P UE304 is the user terminal with P2P function, and different with the domestic consumer terminal, P2P UE304 also can upload the streaming medium content of self storing in the network download streaming medium content.
When UE is P2P UE, further comprise P2P control module P2P CF 305 in the system with the MCF302 one-one relationship.P2P CF305 controls at the streaming media service of P2P UE304.Preserved the presence of streaming medium content burst stored information on P2P UE304 and this P2PUE among the P2P CF305.
P2P UE304 is after P2P CF305 sends streaming medium content burst download request, and P2P CF305 calculates the MDF tabulation of streaming medium content burst to the MCF302 request.
P2P CF305 is convenient in the MDF tabulation of streaming medium content burst can be with certain MDF303 as the last alternative address of streaming medium content burst, after other P2P UE304 of this streaming medium content burst of storage roll off the production line, P2P UE still can obtain this streaming medium content burst from network, guarantee that P2P UE does not go offline.MCF302 calculates the memory location of streaming medium content burst for P2P UE304.Can obtain the different streaming medium contents that MDF stored by P2P mechanism between the different MDF.When preserving the streaming medium content part among the MDF, MCF can adopt P2P mechanism to obtain other parts of streaming medium content from other MDF.
P2P CF305 is according to the MDF tabulation of the streaming medium content streaming medium content burst that storing message and MCF302 calculate on other P2P UE304, the address list of the streaming medium content burst that calculates is sent to P2P UE304 place, and P2P UE304 carries out the download of streaming medium content according to the address list of streaming medium content burst.
306 couples of P2P UE304 of performance measurement module MPMF Access Network network performance is measured.Adopt mode professional or that application distributes fixed-bandwidth at present, can not adapt to the requirement of the high QoS needs of the high burst of real time flow medium high bandwidth in the P2P process.MPMF306 can obtain the qos parameter (as the throughput of port or link, delay, packet loss etc.) of Access Network streaming media service.Testing result that P2P CF provides according to MPMF306 and network operation state are adjusted the position of P2PUE304 download stream media content fragmenting.Dynamical feedback by Internet resources provides QoS to guarantee better.
Referring to Fig. 5 is the Streaming Media control method flow chart of non-P2P user terminal, comprises the steps:
Steps A: non-P2P UE initiates the streaming media service request to SCF.
SCF utilizes the resource reservation of RACF initiation to streaming medium content, guarantees the streaming media service quality.About the resource reservation process of RACS, can be referring to the relevant regulations of international telecommunication normal structure ITU-T and TISPAN.
Step B:SCF is the MCF that non-P2P UE selects according to information such as service-domains under the non-P2P UE.
Step C:SCF is forwarded to the streaming media service request at the MCF place that has chosen.
Step D:MCF carries out scheduling of resource in conjunction with the information such as loading condition of the MDF of the streaming medium content of non-P2P UE request and each service-domain, for non-P2P UE selects suitable MDF, reaches load balancing.
Steps d 1:MCF is forwarded to the MDF that has chosen with the request of non-P2P UE streaming media service.
Steps d 2:MDF may need to obtain complete streaming medium content from other MDF of this service-domain.MDF responds MCF after the streaming medium content that provides for non-P2P UE is provided.
Steps d 3:MCF responds the streaming media service request of non-P2P UE, will comprise that the response message of described MDF address sends to MCF.
Referring to Fig. 7, when MCF receives streaming medium content service request from UE, judge further whether the streaming medium content of being asked is deserted streaming medium content.If the streaming medium content that the MCF judgement is asked is deserted streaming medium content then carries out Streaming Media cross-domain searching program, then, according to tactful 1-1, the selected MDF that acts on behalf of, and will send to by the streaming medium content that finds from other service-domain of UE request by MCF control and act on behalf of on the MDF, the address of acting on behalf of MDF is provided to MCF; If the streaming medium content that the MCF judgement is asked is not deserted streaming medium content then acts on behalf of MDF according to the MDF and the conduct of selected streaming medium content first burst of tactful 1-2, then, MDF according to selected other streaming medium content bursts of tactful 1-3, and the MDF tabulation that forms sent to act on behalf of MDF, provide the address of acting on behalf of MDF to MCF at last.
Strategy 1-1 is to be deserted streaming medium content situation at streaming medium content, purpose is to pick out the MDF that is fit to do " acting on behalf of MDF " MDF all in service-domain, owing to whole streaming medium content will will be downloaded to this MDF, so the memory space to this MDF has proposed certain requirement, correspondingly, the weight of memory space parameter will be higher with respect to other parameters;
Strategy 1-2 purpose is to pick out function admirable from the MDF that has streaming medium content first burst, and bandwidth is abundant, and the MDF of memory space affluence is as acting on behalf of MDF, so the weight of this three aspect factor needs balanced consideration.
The purpose of strategy 1-3 is to pick out the MDF of other streaming medium content burst correspondences, these MDF can send other streaming medium content bursts to and act on behalf of MDF, directly be not the UE service, thus the residue linking number of MDF is not had requirement, so need not consider this parameter.
Step e: SCF is sent to non-P2P UE with the response message that obtains.
Step F: non-P2P UE carries out obtaining streaming medium content alternately with relevant MDF according to the MDF address in the response message.
Referring to Fig. 6 is the Streaming Media control method flow chart of P2P user terminal, comprises the steps:
Steps A: P2P UE initiates the streaming media service request to SCF.
Step B:SCF is the MCF of this P2P UE service according to Information Selection such as service-domains under the P2P UE.
Step C:SCF is forwarded to the streaming media service request MCF that has chosen.
Step D:MCF carries out scheduling of resource in conjunction with the message such as loading condition of the MDF of the streaming medium content of P2P UE request and each service-domain, and MCF selects corresponding delivery module, and sends response message to SCF.
Step D1:MCF selects suitable delivery module for P2P UE, and described delivery module is P2P CF, and MCF and P2P UE are man-to-man relations, and P2P CF is as the control point in the P2P process.The response message that MCF will be included as the P2P CF address of this P2P UE selection sends to SCF.
The response message that step e: SCF will be included as the P2P CF address of this P2P UE selection is sent to this P2P UE.
Step e 1:P2P UE initiates the download request of streaming medium content burst according to the address of the P2P CF in the response message to this P2P CF;
After step e 2:P2P CF receives the request of P2P UE, to the MDF tabulation of MCF request streaming medium content burst.MCF is sent to P2P CF with the MDF tabulation of described streaming medium content burst again.P2P CF will be with the alternative address of certain MDF as the streaming medium content burst, and after the P2P UE of this streaming medium content burst of storage rolled off the production line, this P2P UE still can obtain the streaming medium content burst from network, guarantees that this P2PUE does not go offline.
Referring to Fig. 7, when MCF receives streaming media service request from P2P CF, judge further whether this streaming medium content is deserted streaming medium content.If the streaming medium content that the MCF judgement is asked is deserted streaming medium content then carries out Streaming Media cross-domain searching program, then, to send to all streaming medium content bursts in the service-domain and equilibrium is distributed on all MDF by MCF control, respectively ask the MDF of streaming medium content burst correspondence according to tactful 1-4 is selected, the MDF address of each streaming medium content burst correspondence is provided to P2P CF; If MCF judges that the streaming medium content of being asked is deserted streaming medium content, then respectively ask the MDF of streaming medium content burst correspondence according to tactful 1-4 is selected, the MDF address of each streaming medium content burst correspondence is provided to P2P CF.
Strategy 1-4 when being used in P2P UE request streaming media service, its objective is from the MDF that has certain specific streaming medium content burst and picks out only MDF.For the situation of P2P UE, can realize load balancing between each MDF, so at this moment can be very not high to the requirement of the performance of MDF and memory space.
MCF can return to P2PCF with the address list of this group MDF calculate one group of best MDF at each streaming medium content burst according to tactful 1-4 after.The form of tabulation is as shown in table 1.
Table 1 returns the MDF tabulation of streaming medium content burst for MCF
| Sequence number/burst | The memory location |
| ??1 | ??MDF1 |
| ??2 | ??MDF3 |
| ??3 | ??MDF1 |
| ??4 | ??MDF2 |
| ??...... | ??...... |
Step e:P2P CF further carries out scheduling of resource according to the access network resource situation of obtaining from MPMF.
Step e 3:P2P CF calculates the address list of download stream media content fragmenting for P2P UE.
Referring to Fig. 8, P2P CF calculates the MDF tabulation of streaming medium content burst according to streaming medium content storing message and MCF on other P2P UE.
P2P CF is when receiving P2P UE streaming medium content burst download request, and the flow process of meeting execution graph 8 selects to provide the P2P UE of service.
P2P CF mainly considers the available linking number of P2P UE, the parameters such as Access Network state of P2P UE performance and P2P UE when selecting P2P UE.Filter out reasonable P2PUE by these parameters, and provide the priority of these P2PUE.
P2PCF is when receiving streaming medium content burst download request, and common workflow is as follows: P2PCF at first can the MCF in service-domain asks the MDF address of a part of streaming medium content burst correspondence.MCF can execution graph 7 given flow processs, and the MDF of the streaming medium content burst after will calculating tabulates and returns to P2PCF.P2P CF can calculate the P2PUE of other streaming medium content burst correspondences except streaming medium content first burst according to strategy 2, and the priority of P2PUE.
The purpose of strategy 2 is to select suitable P2PUE from the P2PUE of all request bursts, the main factor of considering comprises the state of the performance of this P2PUE, available linking number and this Access Network, and superior performance, the P2PUE that available linking number is many, Access Network is in good condition will be preferentially selected.
By strategy 2, can draw the P2PUE priority of each streaming medium content burst correspondence, get high preceding 2 to 3 the P2P UE of priority, and, finally form each streaming medium content burst corresponding address tabulation in conjunction with the MDF tabulation that MCF provides, as shown in table 2.
Table 2 is the address list of the streaming medium content burst of P2P CF generation
Step e 4: the address list of described streaming medium content burst is sent to P2P UE.
Step F: P2P UE carries out obtaining streaming medium content alternately with relevant P2P UE or MDF according to P2P UE address in the address list of streaming medium content burst in the response message or MDF address.
Obtain in the process of streaming medium content at P2P UE, P2P UE regularly reports the information of this terminal storage streaming medium content burst to P2P CF, uses during for P2P CF scheduling of resource.
The Streaming Media that the present invention is primarily aimed at telecommunications network designs, consider the function restriction of existing telecommunications network user storage and these user terminals, so in native system, the streaming media service user terminal can be divided into non-P2P streaming media service user terminal and P2P streaming media service user terminal.The P2P terminal should possess corresponding P2P addressing function, supports the P2P Routing Protocol, and can utilize the P2P technology to carry out the function of self-organizing network.The present invention is directed to the different termination function of two classes, designed different streaming media resource scheduling and content delivery mechanism.
The present invention has introduced P2P mechanism in the telecommunications network, has proposed in the telecommunications network streaming media service is carried out the new approaches that scheduling of resource and content transmit, realized in the telecommunications network part of P2P can manage, controlled, ensured the quality of service of telecommunications network streaming media service simultaneously.Respect fully existing telecommunications network streaming media service user's storage, can realize existing non-P2P user and P2P user's coexistence.
The scheduling of resource of Streaming Media can be avoided hot zones Internet resources deficiency, and the idle situation of other regions resources, the overall utilization rate of raising carrier network is for operator provides resource allocation proposal more flexibly.Not only can realize the equilibrium of load by P2P mechanism, and guarantee the robustness of network, can guarantee that the network equipment occurs under the situation of Single Point of Faliure, user terminal continues to use streaming media service.Can not accomplish in these all existing telecommunications networks.
The present invention is directed to more this content way to multiple spot of P2P, innovation proposes by the measurement to the telecommunications network Internet resources, carries out QoS in conjunction with the memory location of streaming medium content and ensures.This is not only a kind of improvement to the structural P 2 P technology, and has proposed new thinking for solving some QoS guarantee to multiple spot in telecommunications network.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. the Streaming Media control system in the telecommunications network is characterized in that, comprises Streaming Media Control Network side and user terminal UE,
Described Streaming Media Control Network side comprises message control module SCF, a plurality of media management module MCF and a plurality of medium delivery module MDF;
SCF is used to receive the streaming media service request that UE sends, and select MCF according to service-domain under the UE, and the forwarding stream media service request is to described MCF;
MCF is used for the Information Selection MDF according to the telecommunications network streaming media service, and the streaming media service request of receiving is forwarded to described MDF;
MDF, receive the streaming media service request that described MCF transmits after, transmit the streaming medium content of being asked according to the indication of described MCF to UE, and periodically self streaming medium content information and loading condition reported described MCF;
UE sends the streaming media service request to described SCF, receives the streaming medium content that is sent by described MDF.
2. system according to claim 1 is characterized in that described MCF carries out the classification setting according to number of users, the cold and hot degree of streaming medium content, and as described MCF when being rudimentary, described MCF is responsible for searching to senior MCF the streaming medium content of UE request.
3. as system as described in the claim 2, it is characterized in that described MDF carries out classification according to the classification setting of MCF, as described MDF when being rudimentary, under the control of described MCF, described MDF obtains the streaming medium content that needs from MDF senior or at the same level.
4. as system as described in claim 1 or 3, it is characterized in that, during described UE right and wrong P2P UE, further comprise resource and admission control module RACF, link to each other with non-P2P UE, receive the resource reservation request of described SCF, download for the streaming medium content of non-P2P UE and carry out resource reservation.
5. as system as described in claim 1 or 3, it is characterized in that, when described UE is P2P UE, further comprise P2P control module P2P CF, described MCF and P2P CF are man-to-man relations, information according to streaming media service is the address list that described P2P UE calculates the streaming medium content burst, and the address list of described streaming medium content burst is sent to described P2P UE.
6. as system as described in the claim 5, it is characterized in that further comprise performance measurement module MPMF, the QoS information of the streaming media service that MPMF will obtain from the access network of P2P UE is sent to described P2P CF place.
7. the Streaming Media control method in the telecommunications network is characterized in that, comprises the steps:
A, user terminal UE initiate the streaming media service request to message control module SCF;
B, SCF select media management module MCF according to service-domain under the described UE;
C, SCF are forwarded to described MCF with the streaming media service request;
D, described MCF carry out scheduling of resource in conjunction with the streaming medium content of UE request, the loading condition of each service-domain MDF, and described MCF selects corresponding delivery module, and send response message to SCF;
E, SCF are sent to UE with the response message that obtains;
F, UE are according to receiving that the address of the streaming medium content burst in the response message obtains streaming medium content.
8. as method as described in the claim 7, it is characterized in that, behind execution in step A, comprise that further it is that described streaming media service carries out resource reservation that SCF utilizes resource and admission control module RCF.
9. as method as described in claim 7 or 8, it is characterized in that the described MCF of step D selects corresponding delivery module, and send response message, may further comprise the steps to SCF:
It is medium delivery module MDF that d1, described MCF select corresponding delivery module;
D2, described MDF respond described MCF after the streaming medium content that is ready to described UE request;
D3, described MCF will comprise that the response message of described MDF address sends to SCF.
10. as method as described in the claim 7, it is characterized in that MCF described in the step D selects corresponding delivery module, and send response message, may further comprise the steps to SCF:
It is P2P control module P2P CF that D1, described MCF select corresponding delivery module, and MCF will comprise that the response message of described P2P CF address sends to SCF.
11. as method as described in the claim 10, it is characterized in that, behind the execution in step E, further may further comprise the steps:
E1, UE send the download request of P2P streaming medium content burst according to the P2P CF address in the described response message to described P2P CF;
After E2, described P2P CF received the download request of streaming medium content burst of UE, to the MDF tabulation of described MCF request streaming medium content burst, described MCF was sent to described P2P CF with the MDF tabulation of described streaming medium content burst again;
E3, described P2P CF are the address list that UE calculates the streaming medium content burst;
E4, will comprise that the response message of the address list of described streaming medium content burst is sent to UE.
12. as method as described in the claim 11, it is characterized in that, behind the execution in step E2, further comprise step e:
E: described P2P CF carries out scheduling of resource according to the access network resource situation of obtaining from performance measurement module MPMF.
13. as method as described in claim 11 or 12, it is characterized in that, behind execution in step F, comprise that further UE regularly reports the information of this terminal storage streaming medium content burst to described P2P CF.
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