CN101378492A - Method, system and entity for implementing network REC - Google Patents

Method, system and entity for implementing network REC Download PDF

Info

Publication number
CN101378492A
CN101378492A CN200710145172.8A CN200710145172A CN101378492A CN 101378492 A CN101378492 A CN 101378492A CN 200710145172 A CN200710145172 A CN 200710145172A CN 101378492 A CN101378492 A CN 101378492A
Authority
CN
China
Prior art keywords
entity
pvr
information
content source
scf
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN200710145172.8A
Other languages
Chinese (zh)
Other versions
CN101378492B (en
Inventor
钟剑锋
雷晓松
王耕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN200710145172.8A priority Critical patent/CN101378492B/en
Priority to PCT/CN2008/071803 priority patent/WO2009026813A1/en
Publication of CN101378492A publication Critical patent/CN101378492A/en
Application granted granted Critical
Publication of CN101378492B publication Critical patent/CN101378492B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • 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
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/27—Server based end-user applications
    • H04N21/274—Storing end-user multimedia data in response to end-user request, e.g. network recorder
    • H04N21/2747—Remote storage of video programs received via the downstream path, e.g. from the server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H04N21/64322—IP

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

The invention discloses a method for realizing network recording, comprising the following steps: a network recording control entity receives a recording task, a network recording media entity is controlled to establish a transit channel with a content source according to the recording task, and is controlled to receive and record a media stream coming from the content source transited by the transit channel. Moreover, the invention also discloses a system to realize network recording; finally, the invention further discloses a network recording control entity and a network recording media entity. The technical proposal disclosed by the invention can realize the network recording in an IPTV structure on the basis of IMS.

Description

A kind of method, system and entity of realizing network REC
Technical field
The present invention relates to Internet Protocol Television (IPTV) technology, relate in particular to a kind of method, system and network REC controlled entity and network REC medium entity of realizing network REC.
Background technology
IPTV is a kind of broadband cabled television network that utilizes, and integrates multiple technologies such as the Internet, multimedia, communication, and the brand-new technology of the multiple interactive services that comprises Digital Television is provided to the domestic consumer.IPTV uses transmission control protocol/Internet Protocol (TCP/IP) to carry out clean culture, broadcasting or group broadcasting video frequency business as bearing protocol, effectively television network, three fields of telephone network and the Internet combined, and be the most representative business of the integration of three networks.
IP Multimedia System (IMS, IP Multimedia Subsystem) is an IP-based standards system that is independent of access technology, IMS and existing voice and data network (no matter be as fixed network users such as PSTN, ISDN, internets, still as mobile network users such as GSM, CDMA) can intercommunications.The IMS system makes can set up reciprocity IP communication by various types of clients, and can obtain needed service quality.Except that session management, the IMS system also relates to the service finished provides necessary function (for example registration, safety, charging, carrying control, roaming).It is the core that the IMS system has constituted IP kernel heart net.
For the unified control that realizes that IMS inserts fixed network users, in the network architecture, introduced Network Attachment Subsystem (NASS, Network Attachment Sub-System) and resource and accommodation control subsystem (RACS, Resource and Admission Control Subsystem).NASS is used to finish the management that the user is attached to access network, comprises that the user rs authentication and the network address are distributed, location management.RACS then is mainly used in and finishes policy control, resource reservation and admittance control, and the service/application aspect can utilize RACS request Access Network to reserve relevant resource.
At present the IPTV framework based on IMS that starts will directly be reused the related functional entities of IMS, and by suitably increasing new functional entity and to the expansion of existing capability entity correlation function, realizing the support to the IPTV business.
Fig. 1 shows in the prior art a kind of networking schematic diagram based on the IPTV framework of IMS.As shown in Figure 1, each IPTV business is made up of pair of IP TV service control function (SCF, Service ControlFunctions) and IPTV media function (MF, Media Functions).Wherein, SCF is a kind of sip application server, and task mainly comprises: authorize during (1) conversation initialization; Whether (2) implementation modification flow process is checked user's data, allow the user capture should business with decision; (3) number of the account control; (4) select corresponding M F.MF is responsible for the control of Media Stream and submits, and can be divided into media control function (MCF) and medium and submit function (MDF).Wherein, the task of MCF mainly comprises: (1) handles the control of Media Stream; (2) state (optional) of supervision MDF; (3) management and subscriber equipment (UE) is mutual; (4) when MCF controls a plurality of MDF, select a MDF; (5) the accurately state of the different MDF of perception and the distribution of content; (5) produce charge information.The task of MDF mainly comprises: (1) handles submitting of Media Stream; (2) uploaded state is given MCF (optional).
As seen from Figure 1, SCF and MF comprise respectively: program request class business (CoD, Content onDemand), broadcast service function (BC) and personal video recorder functionality (PVR, Personal VideoRecorder).
Wherein, CoD is an IPTV business function, is professional control section (CoD-SCF) in SCF, is divided into medium control section (CoD-MCF) and medium and submits function (CoD-MDF) in MF.BC has realized broadcasting IPTV business, is professional control section (BC-SCF) in SCF, is divided into medium control section (BC-MCF) and medium and submits function (BC-MDF) in MF.PVR has realized IPTV PVR business, is professional control section (PVR-SCF) in SCF, is divided into medium control section (PVR-MCF) and medium and submits function (PVR-MDF) in MF.The PVR business provides the recording function to video media stream, can be divided into PVR Network Based and based on individual's PVR according to the mode that provides, based on network PVR refers to: at the network memory space certain for the user distributes, the media function that comes recording user to record by network, and play these media contents according to user intention.
Wherein, carry out interacting message by IMS between CoD-SCF, BC-SCF and PVR-SCF and the UE, medium control messages between CoD-MCF, BC-MCF and PVR-MCF and the UE is passed through Xc ' reference point and is carried out alternately, and the media data between CoD-MDF, BC-MDF and PVR-MDF and the UE passes through Xc " reference point is mutual.
Secondly, in the network architecture, also increase service discovering function (SDF) and service selection functional (SSF), be used to UE when selecting IPTV professional, to submit necessary information.Wherein, SSF provides the tabulation of a series of available service that UE can browse and select.
In addition, in transmission process function (TPF, Transport Processing Functions), comprise the multicast controlled function; In user property server capability (UPSF), store user data.
In the above-mentioned IPTV framework based on IMS, though provided the main task of each functional entity, but for how between each functional entity, carrying out information interaction to finish recording of network, still do not have definite scheme in the existing network framework, therefore make to have now in the IPTV technology and still can't realize network REC.
Summary of the invention
In view of this, provide a kind of method that realizes network REC on the one hand in the embodiment of the invention, a kind of system and entity of realizing network REC is provided on the other hand, so that realize the network REC in the IPTV technology.
The method of the realization network REC that the embodiment of the invention provided comprises:
The network REC controlled entity receives recording task, according to described recording task, Control Network recording medium entity and content source are set up transmission channel, and Control Network recording medium entity receives and records the Media Stream from content source by described transmission channel transmission.
The system of the realization network REC that the embodiment of the invention provided comprises:
The network REC controlled entity is used to receive recording task, and sends the control information of carrying content source information to network REC medium entity according to described recording task;
Network REC medium entity is used for setting up transmission channel according to the control information of carrying content source information that is received with content source, and the Media Stream from content source by described transmission channel transmission is received and records;
Content source is used for giving network REC medium entity with media flow transmission.
The network REC controlled entity that the embodiment of the invention provided comprises:
Receiver module is used to receive recording task;
Control module is used for sending the control information of carrying content source information to network REC medium entity according to described recording task.
The network REC medium entity that the embodiment of the invention provided comprises:
Receiver module is used to receive the control information of carrying content source information;
Passage is set up module, is used for the content source information according to described control information, sets up transmission channel with content source;
Module is recorded in reception, and the Media Stream from content source that is used for setting up passing through the transmission channel transmission receives and records.
From such scheme as can be seen, the network REC controlled entity is according to the recording task that is received in the embodiment of the invention, set up transmission channel between Control Network recording medium entity and the content source, and Control Network recording medium entity receives and records the Media Stream from content source, thereby makes realized network REC in the IPTV framework based on IMS.
Description of drawings
Fig. 1 is based on the networking schematic diagram of the IPTV framework of IMS in the prior art;
Fig. 2 is the exemplary process diagram that realizes the method for network REC in the embodiment of the invention;
Fig. 3 is the exemplary block diagram that realizes the system of network REC in the embodiment of the invention;
Fig. 4 is the structural representation of network REC controlled entity in the system shown in Figure 3;
Fig. 5 is the structural representation of network REC medium entity in the system shown in Figure 3;
Fig. 6 is for realizing the schematic flow sheet of network REC in the example one of the present invention;
Fig. 7 is for realizing the schematic flow sheet of network REC in the example two of the present invention;
Fig. 8 is for realizing the schematic flow sheet of network REC in the example three of the present invention.
Embodiment
In the embodiment of the invention, the network REC controlled entity receives recording task, according to the recording task that is received, set up transmission channel between Control Network recording medium entity and the content source, and Control Network recording medium entity is built transmission channel transmission to passing through the Media Stream from content source receives and records.
Below in conjunction with drawings and the specific embodiments method, system and the entity of realizing network REC among the present invention is described in further detail respectively.
Fig. 2 is the exemplary process diagram that realizes the method for network REC in the embodiment of the invention.As shown in Figure 2, this flow process comprises the steps:
Step 201, the recording task request entity is submitted recording task to the network REC controlled entity.
In this step, recording task can be that UE submits to, also can be network configuration, and correspondingly, the recording task request entity can be UE, also can be the network entity of store network configuration data.
Comprise in the recording task and record relevant information, as channel information, information such as recording time section or program recording.
In the present embodiment, the network REC controlled entity can be PVR-SCF, also can be other entity.
When the recording task request entity is UE, when the network REC controlled entity was PVR-SCF, recording task can transmit by the Ut between UE and the PVR-SCF based on HTTP(Hypertext Transport Protocol); Perhaps, recording task can transmit by the session control interface between UE and the PVR-SCF by dialogue-based initializtion protocol (SIP).
Wherein, when transmitting based on Session Initiation Protocol, recording task can transmit by (INVITE) message of the invitation in the Session Initiation Protocol or submission (REFER) message, and when transmitting by the session control interface, concrete transmission means can have following two kinds at least:
Transmission means one: UE directly sends to PVR-SCF with recording task.
Transmission means two: UE is transmitted to PVR-SCF by BC-SCF with recording task.
In above-mentioned two kinds of transmission meanss, recording task all can be transmitted as Proxy Call Session Control Function (P-CSCF) and service call conversation control function (S-CSCF) by the network entity among the IMS between above-mentioned related entity.
Step 202, network REC controlled entity are set up transmission channel according to the recording task that is received between Control Network recording medium entity and the content source.
In this step, if recording task is the scheduled recording task of submitting in advance, and comprise information such as channel information and recording time section in the recording task, then the network REC controlled entity can be before the corresponding time period begins, and sets up transmission channel between Control Network recording medium entity and the content source that need record; If recording task is the real-time recording task of current submission, and comprise channel information in the recording task, then the network REC controlled entity can be when receiving recording task, directly sets up transmission channel between Control Network recording medium entity and the content source that need record.
In the present embodiment, network REC medium entity can be PVR-MF, also can be other entity.Content source is stored among the BC-MF usually, and the pre-configured usually BC-SCF that gives of the content source information among the BC-MF.
When the network REC controlled entity is PVR-SCF, when network REC medium entity is PVR-MF, the detailed process of setting up transmission channel between network REC controlled entity Control Network recording medium entity and the content source can comprise: PVR-SCF and BC-SCF carry out information interaction, obtain content source information, afterwards, PVR-SCF and PVR-MF carry out information interaction, and the content source information of being obtained is notified to PVR-MF, and PVR-MF is according to setting up transmission channel between content source information of being obtained and the content source.
Wherein, when PVR-SCF and BC-SCF carried out information interaction, if be to transmit with multicast mode from the Media Stream of content source, then the content source information of being obtained can be an information about multicast source, as multicast source address etc.; If the Media Stream from content source is to transmit in the mode of clean culture, then the content source information of being obtained can be a unicast channel information.
Correspondingly, when if PVR-SCF and PVR-MF carry out information interaction, PVR-SCF is notified to PVR-MF with the information about multicast source that is obtained, then PVR-MF can send the request that adds multicast to multicast controlled function entity, add the request of multicast by multicast controlled function entity according to this, to be distributed to PVR-MF from the Media Stream of content source, thereby realize the multicast channel foundation between PVR-MF and the content source; If PVR-SCF is notified to PVR-MF with the unicast channel information of being obtained, then PVR-MF can be according to setting up unicast channel between this unicast channel information and the content source.
Wherein, multicast controlled function entity can also can be other functional entity for basic forwarding capability/basic control function (EFF/ECF).
Step 203, network REC medium entity receives and records the Media Stream from content source.
In this step, be that the situation of PVR-MF is an example with network REC medium entity, then if be to transmit with multicast mode from the Media Stream of content source, then PVR-MF receives the Media Stream by the distribution of multicast controlled function entity; If the Media Stream from content source is to transmit in the mode of clean culture, then PVR-MF flows by the unicast channel receiving media with content source foundation.PVR-MF carries out real-time recording to the Media Stream that is received.
Step 204, record finish after or receiving the end recording request of UE after, remove the transmission channel of being set up between network REC medium entity and the content source.
In this step, with the network REC controlled entity is PVR-SCF, network REC medium entity is that the situation of PVR-MF is an example, the process of removing the transmission channel of being set up between PVR-MF and the content source can be by PVR-MF or PVR-SCF initiation session ending request, and send the conversation end request to BC-SCF by PVR-SCF, thereby finish the session between PVR-SCF and the BC-SCF, while PVR-MF initiatively removes or PVR-SCF notifies the transmission channel of being set up between PVR-MF dismounting and the content source.
Wherein, if the Media Stream from content source is to transmit with multicast mode, then PVR-MF remove and content source between set up transmission channel the time, can be: PVR-MF sends the request of leaving multicast to multicast controlled function entity,, stop the Media Stream from content source is distributed to PVR-MF according to this request of leaving multicast by multicast controlled function entity.As if the Media Stream from content source is to transmit in the mode of clean culture, then the unicast transmission passage of being set up between direct dismounting of PVR-MF and the content source.
Step 205, network REC medium entity will be recorded object information and report the network REC controlled entity.
Wherein, recording object information can comprise: the combination in any of information such as the memory location of recording, duration, file format.
Step 206, the network REC controlled entity is notified to the recording task request entity with the object information of recording that is received.
During specific implementation, the recording task request entity can also be subscribed to the network REC controlled entity and record object information, keeps step 205 and step 206 in the then above-mentioned flow process.If the recording task request entity is not subscribed to the network REC controlled entity and recorded object information, then step 205 and step 206 can keep, and also can omit, and perhaps, also can only keep step 205, and omit step 206.
In addition, the recording task request entity can also be subscribed to recorded event information to the network REC controlled entity, and then the network REC controlled entity can be notified to the recording task request entity with the recorded event information from network REC medium entity that is received.Wherein, recorded event information can comprise current recording state, as records duration, records information such as unusual.
Wherein, network REC medium entity will be recorded result and/or recorded event information, and to report the network REC controlled entity can be to give tacit consent to according to network configuration to report, also can be that the network REC controlled entity is recorded result and/or recorded event information to network REC medium entity subscribes, network REC medium entity reports result and/or the recorded event information recorded according to the subscription demand to the network REC controlled entity.
Further, when UE initiated playing request to institute's recorded content, network REC medium entity was given UE with the media flow transmission of being recorded.
In the present embodiment, interacting message between recording task request entity and the network REC controlled entity, between network REC controlled entity and the network REC medium entity, between network REC controlled entity and the content source can carry out route by the network entity among the IMS, gives unnecessary details no longer one by one herein.
More than the method that realizes network REC in the embodiment of the invention is described in detail, again the system that realizes network REC in the embodiment of the invention is described in detail below.
Fig. 3 is the exemplary block diagram that realizes the system of network REC in the embodiment of the invention.As shown in Figure 3, this system comprises: network REC controlled entity, network REC medium entity and content source.
Wherein, the network REC controlled entity is used to receive recording task, and sends the control information of carrying content source information to network REC medium entity according to described recording task.
Network REC medium entity is used for setting up transmission channel according to the control information of carrying content source information that is received with content source, and the Media Stream from content source by described transmission channel transmission is received and records.Wherein, transmission channel can be multicast channel or the unicast channel of describing in the flow process shown in Figure 2, and the process of specifically setting up also can be consistent with the description in the flow process shown in Figure 2.
Content source is used for the transmission channel that Media Stream passes through to be set up is transferred to network REC medium entity.
During specific implementation, the specific operation process of each functional entity in the system shown in Figure 2 can be consistent with the operating process described in the flow process shown in Figure 2, gives unnecessary details no longer one by one herein.
Wherein, recording task can be that UE submits to, also can be network configuration, if the UE submission, then this system can further comprise: UE is used for submitting recording task to the network REC controlled entity.Wherein, if the network REC controlled entity is PVR-SCF, then to submit to the mode of recording task to have to PVR-SCF multiple for UE, specifically can be consistent with the description in the step 201 in the flow process shown in Figure 2.
In addition, if the network REC controlled entity is PVR-SCF, network REC medium entity is PVR-MF, and then this system can further comprise: BC-SCF is used for carrying out information interaction with PVR-SCF, and provides content source information to PVR-SCF.
Wherein, if transmit with multicast mode from the Media Stream of content source, then this system further comprises: multicast controlled function entity, be used under the adding multicast request of PVR-MF, and will be distributed to PVR-MF from the Media Stream of content source.
During specific implementation, network REC controlled entity and network REC medium entity can have multiple specific implementation form, enumerate wherein a kind of specific implementation to network REC controlled entity and network REC medium entity below respectively and are described in detail.
Fig. 4 shows a kind of internal structure schematic diagram of network REC controlled entity.As shown in Figure 4, this entity comprises: receiver module and control module.
Wherein, receiver module is used to receive recording task.This recording task can be from UE, also can be from network configuration.
Control module is used for sending the control information of carrying content source information to network REC medium entity according to described recording task.
Above-mentioned network REC controlled entity can be PVR-SCF.
In addition, this entity can further comprise: the content source information acquisition module is used for obtaining content source information to BC-SCF.
In addition, this entity can further comprise: the information acquisition module is used for obtaining recorded event information and/or recording object information from PVR-MF.
Further, this entity also can comprise: the information reporting module is used for the recorded event information that will be obtained and/or records the request entity that object information reports recording task.
In addition, this entity also can comprise: subscribe to and accept module, be used to accept from the subscription recorded event information of the request entity of recording task and/or record the subscribe request of object information,, notify described information reporting module to carry out the above-mentioned operation that reports according to the subscribe request of being accepted.
In addition, this entity also can further comprise: record the end notification module, be used for sending the conversation end request to PVR-MF, the transmission channel of being set up between notice PVR-MF dismounting and the content source.
Fig. 5 shows a kind of internal structure schematic diagram of network REC medium entity.As shown in Figure 5, this entity comprises: receiver module, passage set up module and module is recorded in reception.
Wherein, receiver module is used to receive the control information of carrying content source information.Wherein, content source information can come from BC-SCF.
Passage is set up module and is used for content source information according to described control information, sets up transmission channel with content source.Wherein, this transmission channel can be multicast channel or the unicast channel of describing in the flow process shown in Figure 2, and the process of specifically setting up also can be consistent with the description in the flow process shown in Figure 2.
Reception is recorded the Media Stream from content source that module is used for setting up passing through the transmission channel transmission and is received and record.
Above-mentioned network REC medium entity can be PVR-MF.
In addition, this entity can further comprise: the information reporting module, and be used to obtain the recorded event information of recording generation and/or record object information, and with the recorded event information obtained and/or record object information and report the network REC controlled entity.
Further, this entity also can comprise: the media play module, be used for playing request according to UE, and the media flow transmission of having recorded that will be corresponding with described playing request is given UE.
Further, this entity also can comprise: subscribe to and accept module, be used to accept from the subscription recorded event information of network REC controlled entity and/or record the subscribe request of object information,, notify described information reporting module to carry out the described operation that reports according to the subscribe request of being accepted.
Be that UE, network REC controlled entity are that PVR-SCF, network REC medium entity are that the situation of PVR-MF is an example with the recording task request entity below, be described in detail by method, system and the entity of several concrete examples to above-mentioned realization network REC.
Example one:
Comprise in this example system: UE, SDF, SSF, PVR-SCF, PVR-MF, BC-SCF and BC-MF.In this example, suppose that UE shifts to an earlier date the scheduled recording task.Fig. 6 shows the schematic flow sheet of realizing network REC in the example one of the present invention.As shown in Figure 6, this flow process comprises the steps:
Step 601, UE submits predetermined recording task to PVR-SCF.
In the present embodiment, the information that UE can provide by SDF and SSF in advance, carry out IPTV service discovering and service selection, and at selected IPTV business, predetermined recording task is registered by the HTTP mode, and submit to PVR-SCF, perhaps also can submit to PVR-SCF in the sip message by recording task is carried at.
Wherein, the information that comprises in the recording task can comprise: the strategy (optional) that channel information, recording time section, user terminal information (optional), network REC preference information (optional), PVR-SCF adopt, desire recorded program relevant information (optional) etc.
In addition, UE can also be after submitting recording task to the recorded event in the recording process and/or the result that records after recording subscribe to, if UE is online like this, PVR-SCF can circulate a notice of recording state and/or record the result, as: record success or record information such as unusual.
Step 602, PVR-SCF when arriving the recording time section soon, carries out information interaction with BC-SCF according to the recording task that is received, and obtains the information of content source.
The specific implementation process of this step can have multiple, only enumerates below wherein a kind of this step to be described in detail:
PVR-SCF can send INVITE to BC-SCF by the IMS system, so that to BC-SCF request content source information.Wherein, PVR-SCF can carry in this INVITE and consult to propose (Offer), also can not carry Offer.For example: if UE has reported channel information and desire recorded program relevant information etc., the then relevant Offer information of portability in the INVITE in submitting to the recording task of PVR-SCF.
BC-SCF receives the INVITE from PVR-SCF, according to the INVITE that is received, return response message (200OK) to PVR-SCF, if carry Offer in the INVITE that BC-SCF receives, then carry in this 200OK message and consult to reply (Answer), otherwise carry this side Offer in this 200OK message.Carry content source information in this 200OK message.
PVR-SCF receives the 200OK message from BC-SCF, therefrom obtain content source information, and according to the 200OK message that is received, send affirmation (ACK) message to sending out BC-SCF, if carry Offer in the 200OK message that PVR-SCF receives, then carry Answer in this ACK message,, then do not carry Answer in this ACK message if carry Answer in the 200OK message that PVR-SCF receives.
Thereby finish corresponding Offer/Answer process.
Wherein, content source information can be an information about multicast source, also can be unicast channel information.
Step 603, PVR-SCF and PVR-MF carry out information interaction, and obtaining content source information is notified to PVR-MF.
The specific implementation process of this step can have multiple, wherein a kind of can be similar with the process in the step 602, promptly PVR-SCF tells PVR-MF with the Offer/Answer process interface that carries out Session Initiation Protocol between PVR-MF with content source information.Specifically can be: PVR-SCF sends INVITE (Offer) message of carrying content source information to PVR-MF, PVR-MF is according to the INVITE that is received, return 200OK (Answer) message to PVR-SCF, after PVR-SCF receives 200OK message, return ACK message to PVR-MF, thereby finish the Offer/Answer process interface.
Step 604, PVR-MF is according to the content source information that is received, and sets up the transmission channel between self and the content source.
In this step, if content source information is an information about multicast source, then PVR-MF can send the request that adds multicast according to this information about multicast source to multicast controlled function entity, add the request of multicast by multicast controlled function entity according to this, to be distributed to PVR-MF from the Media Stream of content source, thereby realize the multicast channel foundation between PVR-MF and the content source; If content source information is a unicast channel information, then PVR-MF can be according to setting up unicast channel between this unicast channel information and the content source.
Step 605, PVR-SCF subscribes to PVR-MF and records object information.
During specific implementation, PVR-SCF can send to PVR-MF and subscribe to (SUBSCRIBE) message, and this subscription can be carried out in the session that PVR-MF initiates by INVITE by PVR-SCF in step 603.This subscription is mainly used in PVR-MF instant circular recording state information in recording process, comprises abnormal information etc.This step is an optional step.
Step 606, PVR-MF receives and records the Media Stream from content source.
Step 607 is recorded when finishing, and PVR-MF sends the conversation end request to PVR-SCF.
Also comprise in this step and remove the transmission channel of being set up between PVR-MF and the content source.Wherein, if content source is transmitted in the multicast mode, then PVR-MF can send the request of leaving multicast to multicast controlled function entity,, is stopped the Media Stream from content source is distributed to PVR-MF according to this request of leaving multicast by multicast controlled function entity; If content source transmits with mode of unicast, then PVR-MF directly remove and content source between the unicast transmission passage.
In this step, the conversation end request can be the BYE message in the sip message, or other message.
Step 608, PVR-SCF returns response message to PVR-MF.
This step is an optional step, and response message can be 200OK message.
Step 609, PVR-SCF sends the conversation end request to BC-SCF.
In this step, the conversation end request can be the BYE message in the sip message.
Step 610, BC-SCF is according to the conversation end request that is received, finish and PVR-SCF between session, and further, return response message to PVR-SCF.
Wherein, response message can be 200OK message.
Step 611, if PVR-SCF has subscribed to PVR-MF that to record object information or network configuration be that the PVR-MF acquiescence reports in the step 605, then PVR-MF will report to PVR-SCF and record object information.
In this step, record the information that object information depends on that the user need obtain, for example can comprise: information such as duration, media formats, space residue size, deposit position.
Step 612, PVR-SCF returns response message to PVR-MF.
This step is an optional step, and response message can be 200OK message.
Step 613, if UE has subscribed to and records object information in step 601, then PVR-SCF will report and record object information.The subscribing manner that reports mode to adopt in can integrating step 601 provides.
Wherein, report content to comprise and record duration, media formats, anomalous event etc.On user experience, can on screen, show a dialog box, notify the user to record success or record failure and reason etc. thereof.
In the above-mentioned flow process, if it is that the PVR-MF acquiescence reports that PVR-SCF has subscribed to recorded event information or network configuration to PVR-MF, then if in recording process, occur recording unusual, overflow etc. as memory space, PVR-MF can report the unusual incident of recording to PVR-SCF, and then step 607～step 608 can be omitted, and directly sends the conversation end request to BC-SCF by PVR-SCF, BC-SCF finishes the session between PVR-SCF and the BC-SCF according to the conversation end request that is received; Simultaneously, PVR-SCF also sends the conversation end request to PVR-MF, and PVR-MF is according to the conversation end request, remove and content source between the transmission channel set up.Equally, the conversation end request can be the BYE message in the sip message, or other message.Perhaps, PVR-MF to PVR-SCF report record unusual incident after, and send the conversation end request to PVR-SCF, PVR-SCF sends the conversation end request to BC-SCF more afterwards, simultaneously, PVR-MF remove and content source between the transmission channel set up.
In addition, in the above-mentioned flow process, do not have strict sequencing between some step, for example step 611～612 can be before step 607, also can be before step 609, in the present embodiment for convenience, for each step is provided with expression sequence number successively, during specific implementation, can carry out according to actual conditions, in addition, step 602 in the above-mentioned flow process and the specific implementation process in the step 603 can also be BC-SCF with the Offer/Answer process interface that carries out Session Initiation Protocol between the PVR-MF, PVR-SCF transmits between two entities.
Message between the UE and PVR-SCF in the above-mentioned flow process, between PVR-SCF and the PVR-MF, between PVR-SCF and the BC-SCF can be come route by the entity in the IMS system.Wherein, the entity in the IMS system mainly comprises P-SCSF, S-CSCF etc.
Example two:
Comprise in this example system: UE, PVR-SCF, PVR-MF, BC-SCF and BC-MF.In this example, suppose that live telecast (LTV) professional (process of setting up of LTV business can be carried out with reference to prior art) carries out, UE watches the real-time recording task of submission in the process.Fig. 7 shows the schematic flow sheet of realizing network REC in the example two of the present invention.As shown in Figure 7, this flow process comprises the steps:
Step 701, UE submits the recording task record the current program of current channel to PVR-SCF, wishes that promptly network initiates to record immediately from the current position of watching.
During specific implementation, can initiate by the INVITE in the sip message, also can be by the REFER message initiation in the sip message etc.
Step 702, PVR-SCF returns response message to UE.
This step is an optional step, and response message can be 200OK message.
Step 703, UE initiates to subscribe to recorded event information to PVR-SCF.
Wherein, subscribing to recorded event information can realize by SUBSCRIBE message in the sip message.
If what step 701 adopted is that INVITE sends recording task, then this step can directly be carried out subscription.
If what step 701 adopted is that REFER message sends recording task, then owing to carry out after the REFER message, session meeting between UE and the PVR-SCF is released, therefore according to the hidden subscription rule of using REFER message, also comprise between step 702 and this step: PVR-SCF sends notice (NOTIFY) message to UE, is used to carry PVR-SCF and desires the session id information that makes a call to BC-SCF.After UE receives NOTIFY, return 200OK message to PVR-SCF.Then also need carry the session id information of from NOTIFY, obtaining in the SUBSCRIBE message in this step.
Step 704, PVR-SCF returns response message to UE.
Wherein, if step 701 employing is that REFER message sends recording task, then PVR-SCF at local search, and navigates to corresponding session according to the session id information in the subscribe request of UE, can return response message to UE further.Wherein, response message can be 200OK message.
Step 705～709 are consistent with step 602 shown in Figure 6～606.Wherein, when PVR-SCF and BC-SCF carry out information interaction in the step 705, if PVR-SCF sends INVITE to BC-SCF, and in this INVITE, carry Offer, then the initial information of this Offer can be carried by INVITE in the step 701 or REFER message, for example, portability Session Description Protocol (SDP) message body etc.
Step 710, in the recording process, PVR-SCF reports UE with recorded event information.
In the recording process,, go up the incident that insufficient memory or other abnormal information cause as PVR-MF and report the recorded event that takes place.In the practical application, recorded event information reports and can realize by the NOTIFY in the sip message.
Step 711, UE returns response message to PVR-SCF.
This step is an optional step, and response message can be 200OK message.
Step 712 is recorded generation unusually as if the recorded event information demonstration that reports in the step 710, and then UE can initiatively require to finish to record in this step, and records ending request to the PVR-SCF transmission.
Wherein, if what adopt in the step 701 is that INVITE sends recording task, recording ending request and can be BYE message in this step then; If what adopt in the step 701 is that REFER message sends recording task, recording ending request and can be REFER message in this step then.
Step 713, PVR-SCF returns response message to UE.
This step is an optional step, and response message can be 200OK message.
Step 714, PVR-SCF sends the conversation end request to BC-SCF.
In this step, the conversation end request can be the BYE message in the sip message.In addition, PVR-SCF also sends the conversation end request to PVR-MF, and PVR-MF is according to the conversation end request, remove and content source between the transmission channel set up.The passage demolishing process is consistent with the description in the step 607 shown in Figure 6.
Step 715, BC-SCF is according to the conversation end request that is received, finish and PVR-SCF between session, and return response message to PVR-SCF further.
Wherein, response message can be 200OK message.
In the above-mentioned flow process, step 703,704,710,711 is an optional step.
In addition, if the user has carried the duration information of recording in 701, and do not receive the ending request of recording before expiring recording duration from UE, then step 712 and 713 can be omitted, and comes initiation session ending request initiatively to remove session between PVR-SCF and the BC-SCF and the transmission channel between PVR-MF and the content source by PVR-SCF or PVR-MF.
Further, record finish after, PVR-SCF can will record object information notice UE by NOTIFY.
In addition, in the above-mentioned flow process, the message between UE and the PVR-SCF, between PVR-SCF and the PVR-MF, between PVR-SCF and the BC-SCF can be come route by the entity in the IMS system.Entity in the IMS system mainly comprises P-SCSF, S-CSCF etc.
Equally, in the above-mentioned flow process, there is not strict sequencing between some step yet, for example step 703～704 can for convenience, be provided with the sequence number of expression priority in the present embodiment for each step after step 705, during specific implementation, can carry out according to actual conditions.
Example three:
Comprise in this example system: UE, PVR-SCF, PVR-MF, BC-SCF and BC-MF.In this example, suppose that live telecast (LTV) professional (process of setting up of LTV business can be carried out with reference to prior art) carries out, UE watches the real-time recording task of submission in the process.Fig. 8 shows the schematic flow sheet of realizing network REC in the example three of the present invention.As shown in Figure 8, this flow process comprises the steps:
Step 801, UE submits the recording task record the current program of current channel to BC-SCF, wishes that promptly network initiates to record immediately from the current position of watching.
During specific implementation, can initiate by the INVITE in the sip message, also can be by the REFER message initiation in the sip message etc.
Step 802, BC-SCF returns response message to UE.
This step is an optional step, and response message can be 200OK message.
Step 803, UE initiates to subscribe to recorded event information to PVR-SCF.
Wherein, subscribing to recorded event information can realize by SUBSCRIBE message in the sip message.
If what step 801 adopted is that INVITE sends recording task, then this step can directly be carried out subscription.
If what step 801 adopted is that REFER message sends recording task, then owing to carry out after the REFER message, session meeting between UE and the BC-SCF is released, therefore according to the hidden subscription rule of using REFER message, also comprise between step 802 and this step: BC-SCF sends notice (NOTIFY) message to UE, is used to carry BC-SCF and desires the session id information that makes a call to PVR-SCF.After UE receives NOTIFY, return 200OK message to BC-SCF.Then also need carry the session id information of from NOTIFY, obtaining in the SUBSCRIBE message in this step.
Step 804, PVR-SCF returns response message to UE.
Wherein, if step 801 employing is that REFER message sends recording task, then PVR-SCF at local search, and navigates to corresponding session according to the session id information in the subscribe request of UE, can return response message to UE further.Wherein, response message can be 200OK message.
Step 805～step 811 is consistent with step 705 shown in Figure 7～711.
Step 812 is recorded generation unusually as if the recorded event information demonstration that reports in the step 810, and then UE can initiatively require to finish to record in this step, and records ending request to the BC-SCF transmission.
Wherein, if what adopt in the step 801 is that INVITE sends recording task, recording ending request and can be BYE message in this step then; If what adopt in the step 801 is that REFER message sends recording task, recording ending request and can be REFER message in this step then.
Step 813, BC-SCF returns response message to UE.
This step is an optional step, and response message can be 200OK message.
Step 814, BC-SCF sends the conversation end request to PVR-SCF.
In this step, the conversation end request can be the BYE message in the sip message.
Step 815, PVR-SCF is according to the conversation end request that is received, finish and BC-SCF between session, and return response message to BC-SCF further.Wherein, response message can be 200OK message.
In addition, PVR-SCF sends the conversation end request to PVR-MF, and PVR-MF is according to the conversation end request, remove and content source between the transmission channel set up.The passage demolishing process is consistent with the description in the step 607 shown in Figure 6.
Be example mainly in the various embodiments described above with the LTV business, method, system and the entity of realizing network REC are described in detail, in addition, can also be to the CoD business, perhaps time shift TV transmission (TsTV) business etc. is carried out network REC, the roughly process of its realization is identical, and different only to be to obtain what comprise in the content source information can only be unicast address, and the bearer path between network REC medium entity and the content source also can only be a unicast channel.And when obtaining content source information, control CoD SCF professional and the TsTV business needs and the MF that handles CoD business and TsTV business directly carries out the negotiation with medium of obtaining of content address, the media consultation process between similar PVR-SCF and the PVR-MF.Those of ordinary skills describe the realization that can need not to pay work according to the scheme in the presents, give unnecessary details no longer one by one herein.
Network REC medium entity in the various embodiments described above and content source can be closed and be located at together, and the transmission channel of this moment can be the intercommunication passage.
In addition, the network REC medium entity in the various embodiments described above is with recorded event information and/or record the method that object information reports the network REC controlled entity and can independently exist, and is promptly suitable equally for other network REC method.In addition, the network REC controlled entity is with recorded event information and/or record the method that object information reports the recording task request entity and also can independently exist, and is promptly suitable equally for other network REC method.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is preferred embodiment of the present invention; 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 (32)

1, a kind of method that realizes network REC is characterized in that, this method comprises:
The network REC controlled entity receives recording task, according to described recording task, Control Network recording medium entity and content source are set up transmission channel, and Control Network recording medium entity receives and records the Media Stream from content source by described transmission channel transmission.
2, the method for claim 1 is characterized in that, described recording task is: the recording task that user equipment (UE) is submitted to; It perhaps is the recording task of network configuration.
3, method as claimed in claim 2 is characterized in that, described network REC controlled entity is: personal video recorder functionality-service control function PVR-SCF;
The recording task that described UE submits to is: UE submits to the recording task of PVR-SCF based on HTML (Hypertext Markup Language) HTTP, or the dialogue-based initializtion protocol SIP of UE submits to the recording task of PVR-SCF.
4, method as claimed in claim 3 is characterized in that, described UE based on the recording task that SIP submits to PVR-SCF is: UE is by the invitation INVITE among the SIP or submit to REFER message to give the recording task of PVR-SCF;
Perhaps be: UE is by the invitation INVITE among the SIP or submit to REFER message to hand to the recording task of PVR-SCF by broadcast service function-service control function BC-SCF.
5, the method for claim 1 is characterized in that, described network REC controlled entity is PVR-SCF, and described network REC medium entity is personal video recorder functionality-media function PVR-MF;
Described network REC controlled entity Control Network recording medium entity and content source are set up transmission channel and comprised: PVR-SCF and BC-SCF carry out information interaction, obtain content source information, PVR-SCF is notified to PVR-MF with the content source information of being obtained, and PVR-MF sets up transmission channel according to content source information that is received and content source.
6, method as claimed in claim 5 is characterized in that, described Media Stream from content source transmits with multicast mode;
Then described content source information is an information about multicast source;
Described PVR-MF sets up transmission channel according to the content source information that is received and content source: PVR-MF is according to the information about multicast source that is received, send the request that adds multicast to multicast controlled function entity, multicast controlled function entity is according to the request of described adding multicast, to be distributed to PVR-MF from the Media Stream of content source, the transmission channel of finishing between PVR-MF and the content source is set up.
7, method as claimed in claim 5 is characterized in that, described Media Stream from content source transmits in the mode of clean culture;
Then described content source information is a unicast channel information;
Described PVR-MF sets up transmission channel according to the content source information that is received and content source: PVR-MF is according to setting up unicast channel between unicast channel information that is received and the content source.
8, as each described method in the claim 1 to 7, it is characterized in that, record finish after or receive finish recording request or conversation end request after, remove the transmission channel of being set up between network REC medium entity and the content source.
9, as each described method in the claim 1 to 7, it is characterized in that this method further comprises: network REC medium entity is with recorded event information and/or record object information and report the network REC controlled entity.
10, method as claimed in claim 9, it is characterized in that, network REC medium entity is with recorded event information and/or record object information and report before the network REC controlled entity, and further comprise: the network REC controlled entity is to network REC medium entity subscribes recorded event information and/or record object information.
11, method as claimed in claim 9 is characterized in that, this method further comprises: the network REC controlled entity is with recorded event information and/or record the request entity that object information reports recording task.
12, method as claimed in claim 11, it is characterized in that, the network REC controlled entity is with recorded event information and/or record before the request entity that object information reports recording task, and further comprise: the request entity of recording task is subscribed to recorded event information and/or recorded object information to the network REC controlled entity.
13, as each described method in the claim 1 to 7, it is characterized in that, this method further comprises: network REC medium entity receives the playing request from UE, and according to the playing request that is received, the media flow transmission of having recorded that will be corresponding with described playing request is given UE.
As each described method in the claim 1 to 7, it is characterized in that 14, described recording task is predetermined recording task, or current real-time recording task.
15, as each described method in the claim 1 to 7, it is characterized in that the interacting message between described network REC controlled entity and the network REC medium entity, between network REC controlled entity and the content source carries out route by the entity among the IP Multimedia System IMS.
16, a kind of system that realizes network REC is characterized in that, this system comprises:
The network REC controlled entity is used to receive recording task, and sends the control information of carrying content source information to network REC medium entity according to described recording task;
Network REC medium entity is used for setting up transmission channel according to the control information of carrying content source information that is received with content source, and the Media Stream from content source by described transmission channel transmission is received and records;
Content source is used for giving network REC medium entity with media flow transmission.
17, system as claimed in claim 16 is characterized in that, this system further comprises: user equipment (UE) is used for submitting recording task to the network REC controlled entity.
As claim 16 or 17 described systems, it is characterized in that 18, described network REC controlled entity is personal video recorder functionality-service control function PVR-SCF, described network REC medium entity is personal video recorder functionality-media function PVR-MF.
19, system as claimed in claim 18 is characterized in that, this system further comprises: broadcast service function-service control function BC-SCF is used for providing content source information to described PVR-SCF.
20, system as claimed in claim 19, it is characterized in that described Media Stream from content source transmits with multicast mode, this system further comprises: multicast controlled function entity, be used under the adding multicast request of PVR-MF, will be distributed to PVR-MF from the Media Stream of content source.
21, a kind of network REC controlled entity is characterized in that, this entity comprises:
Receiver module is used to receive recording task;
Control module is used for sending the control information of carrying content source information to network REC medium entity according to described recording task.
22, entity as claimed in claim 21 is characterized in that, described entity is: personal video recorder functionality-service control function PVR-SCF.
23, entity as claimed in claim 22 is characterized in that, this entity further comprises: the content source information acquisition module is used for obtaining content source information to broadcast service function-service control function BC-SCF.
24, entity as claimed in claim 23 is characterized in that, this entity further comprises: the information acquisition module is used for obtaining recorded event information and/or recording object information from personal video recorder functionality-media function PVR-MF.
25, entity as claimed in claim 24 is characterized in that, this entity further comprises: the information reporting module is used for the recorded event information that will be obtained and/or records the request entity that object information reports recording task.
26, entity as claimed in claim 25, it is characterized in that, this entity further comprises: subscribe to and accept module, be used to accept from the subscription recorded event information of the request entity of recording task and/or record the subscribe request of object information, according to the subscribe request of being accepted, notify described information reporting module to carry out the described operation that reports.
27, as each described entity in the claim 21 to 26, it is characterized in that this entity further comprises: record the end notification module, be used for sending the conversation end request, the transmission channel of being set up between notice PVR-MF dismounting and the content source to PVR-MF.
28, a kind of network REC medium entity is characterized in that this entity comprises:
Receiver module is used to receive the control information of carrying content source information;
Passage is set up module, is used for the content source information according to described control information, sets up transmission channel with content source;
Module is recorded in reception, and the Media Stream from content source that is used for setting up passing through the transmission channel transmission receives and records.
29, entity as claimed in claim 28 is characterized in that, described entity is: personal video recorder functionality-media function PVR-MF.
30, entity as claimed in claim 29, it is characterized in that, this entity further comprises: the information reporting module, be used to obtain the recorded event information of recording generation and/or record object information, with the recorded event information obtained and/or record object information and report the network REC controlled entity.
31, entity as claimed in claim 29 is characterized in that, this entity further comprises: the media play module, be used for playing request according to UE, and the media flow transmission of having recorded that will be corresponding with described playing request is given UE.
32, as the described entity of claim 28 to 31, it is characterized in that, this entity further comprises: subscribe to and accept module, be used to accept from the subscription recorded event information of network REC controlled entity and/or record the subscribe request of object information, according to the subscribe request of being accepted, notify described information reporting module to carry out the described operation that reports.
CN200710145172.8A 2007-08-27 2007-08-27 Method, system and entity for implementing network REC Expired - Fee Related CN101378492B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200710145172.8A CN101378492B (en) 2007-08-27 2007-08-27 Method, system and entity for implementing network REC
PCT/CN2008/071803 WO2009026813A1 (en) 2007-08-27 2008-07-30 A method, a system and an entity for realizing network recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200710145172.8A CN101378492B (en) 2007-08-27 2007-08-27 Method, system and entity for implementing network REC

Publications (2)

Publication Number Publication Date
CN101378492A true CN101378492A (en) 2009-03-04
CN101378492B CN101378492B (en) 2011-11-02

Family

ID=40386685

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200710145172.8A Expired - Fee Related CN101378492B (en) 2007-08-27 2007-08-27 Method, system and entity for implementing network REC

Country Status (2)

Country Link
CN (1) CN101378492B (en)
WO (1) WO2009026813A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009140888A1 (en) * 2008-05-19 2009-11-26 华为技术有限公司 Method, device and system for realizing recording service
CN101860720A (en) * 2009-04-10 2010-10-13 中兴通讯股份有限公司 Content positioning method and content distribution network node
CN101990113A (en) * 2009-08-06 2011-03-23 中兴通讯股份有限公司 Content uplinking method and content delivery functional entity
CN102104762B (en) * 2009-12-21 2013-04-03 中国移动通信集团公司 Media recording method, equipment and system of IMS (Internet Management Specification) video conference
CN103051962A (en) * 2011-10-17 2013-04-17 华为终端有限公司 Program recording method and device
CN103166913A (en) * 2011-12-09 2013-06-19 华为技术有限公司 Recording method of encrypted media streams and swapping control equipment
CN103581343A (en) * 2013-11-28 2014-02-12 蓝盾信息安全技术股份有限公司 Http (hyper text transport protocol) request recording method
CN103997660A (en) * 2013-02-20 2014-08-20 中兴通讯股份有限公司 Program recording method, apparatus and system
CN105208431A (en) * 2015-09-25 2015-12-30 晨星半导体股份有限公司 Program recording method and device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60209539T2 (en) * 2001-11-10 2006-12-21 Thomson Licensing SYSTEM AND METHOD FOR RECORDING AND PLAYING VIDEO PROGRAMS FOR MOBILE PORTABLE DEVICES
GB2419774A (en) * 2004-10-27 2006-05-03 Ericsson Telefon Ab L M Accessing IP multimedia subsystem (IMS) services
CN1327681C (en) * 2005-08-08 2007-07-18 华为技术有限公司 Method for realizing initial Internet protocol multimedia subsystem registration
CN100512424C (en) * 2005-09-09 2009-07-08 华为技术有限公司 Method for implementing vidio recording and set-top-box
US20070118660A1 (en) * 2005-11-24 2007-05-24 Nokia Corporation Recording session contents in a network
CN100531344C (en) * 2006-02-14 2009-08-19 华为技术有限公司 Method and system for realizing multimedia recording via II.248 protocol

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009140888A1 (en) * 2008-05-19 2009-11-26 华为技术有限公司 Method, device and system for realizing recording service
CN101860720A (en) * 2009-04-10 2010-10-13 中兴通讯股份有限公司 Content positioning method and content distribution network node
CN101860720B (en) * 2009-04-10 2015-05-20 中兴通讯股份有限公司 Content positioning method and content distribution network node
CN101990113A (en) * 2009-08-06 2011-03-23 中兴通讯股份有限公司 Content uplinking method and content delivery functional entity
CN102104762B (en) * 2009-12-21 2013-04-03 中国移动通信集团公司 Media recording method, equipment and system of IMS (Internet Management Specification) video conference
CN103051962A (en) * 2011-10-17 2013-04-17 华为终端有限公司 Program recording method and device
CN103051962B (en) * 2011-10-17 2016-01-06 华为终端有限公司 Program recording method and apparatus
CN103166913A (en) * 2011-12-09 2013-06-19 华为技术有限公司 Recording method of encrypted media streams and swapping control equipment
CN103166913B (en) * 2011-12-09 2015-10-21 华为技术有限公司 The method for recording of encrypted media streams and switch control device
CN103997660A (en) * 2013-02-20 2014-08-20 中兴通讯股份有限公司 Program recording method, apparatus and system
CN103581343A (en) * 2013-11-28 2014-02-12 蓝盾信息安全技术股份有限公司 Http (hyper text transport protocol) request recording method
CN105208431A (en) * 2015-09-25 2015-12-30 晨星半导体股份有限公司 Program recording method and device

Also Published As

Publication number Publication date
CN101378492B (en) 2011-11-02
WO2009026813A1 (en) 2009-03-05

Similar Documents

Publication Publication Date Title
CN101378492B (en) Method, system and entity for implementing network REC
EP2175591B1 (en) A method, a system, a device and a computer program readable medium for realizing the services of network televison
CN101378491B (en) Method, system and entity for implementing PIP video
CN102137277B (en) Method, device and system for realizing interactive carousel channels
CN100571278C (en) The method, system and device of application terminal ability information in the IPTV business
CN102047637A (en) A method and a user equipment for reserving bandwidth
CN102356623A (en) Managing associated sessions in a network
CN101340557B (en) Time shifted television establishing method and time shifted television media functional entity
CN101409659A (en) Control method, system and entity for network REC
CN101547402B (en) Method and device for establishing IPTV multicast service
CN101674470B (en) Method and system for implementing client recording and recording control entity
CN101626396B (en) Method, device and system for building multi-user service and controlling channel transfer
CN101360222B (en) IPTV program generating method and system based on next generation network
CN101378401A (en) Method, system and equipment for controlling business resource authorization
CN101483532B (en) Method, system and device for media stream duplication
CN101588277B (en) Interconnection equipment of internet protocol television (IPTV) system based on IP multimedia subsystem (IMS) and methods for starting same, requesting broadcasting of programs and broadcasting program
CN101399759B (en) Method, system and apparatus for media stream control by service providing entity
CN101668164B (en) Method, device and system for delivering internet protocol based TV content
CN101588534B (en) Interconnection equipment of internet protocol television (IPTV) system based on IP multimedia subsystem (IMS) and methods for starting same, requesting broadcasting of programs and broadcasting progr
CN101588533B (en) Interconnection equipment of internet protocol television (IPTV) system based on IP multimedia subsystem (IMS) and methods for starting same, requesting broadcasting of programs and broadcasting progr
CN102026024B (en) Method, system and device for controlling pay per view (PPV) service in real time
CN101340362B (en) Uploading method, system and entity of channel switching result
CN101355552A (en) Method and apparatus for controlling stream medium
CN101667877B (en) Method and system used for next generation network for implementing user live broadcast
CN101771662A (en) Method, device and system for acquiring downloading service information in network television framework

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111102

Termination date: 20140827

EXPY Termination of patent right or utility model