CN101374102B - Method, equipment and functional entity for transferring IPTV business parameter - Google Patents
Method, equipment and functional entity for transferring IPTV business parameter Download PDFInfo
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- CN101374102B CN101374102B CN200710143030.8A CN200710143030A CN101374102B CN 101374102 B CN101374102 B CN 101374102B CN 200710143030 A CN200710143030 A CN 200710143030A CN 101374102 B CN101374102 B CN 101374102B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—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
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- 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4333—Processing operations in response to a pause request
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- 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
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- 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
- H04N21/65—Transmission of management data between client and server
- H04N21/658—Transmission by the client directed to the server
- H04N21/6587—Control parameters, e.g. trick play commands, viewpoint selection
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Abstract
The invention discloses a method for transferring parameters of an internet protocol television (IPTV) service. The method comprises the following steps: obtaining parameters of the IPTV service and carrying out TV service operation according to the parameters. The invention also discloses a mobile IPTV user terminal, a time shift TV service control function and a metadata function. Since the session message carries the service parameters, for example, whether to support user control function, for a multicast service, if the network side doesn't support the user control function or doesn't allow the user to execute the user control function operation, the user control function operation is prohibited locally according to the obtained service parameters, thereby avoiding the unnecessary attempt. Therefore, the IPTV user equipment (UE) can prompt the user whether the current visit service support the user control via the interface.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method, equipment and functional entity of the IPTV of transmission service parameter.
Background technology
Web TV (IPTV) is a kind of broadband cabled television network that utilizes, and integrates multiple technologies such as internet multimedia, communication, and the brand-new technology of the multiple interactive services that comprises DTV is provided to the domestic consumer.The user can adopt computer or network machine top box to add the general television set dual mode at home and enjoy the IPTV service.IPTV both had been different from conventional analogue formula cable TV, also was different from DTV.Although DTV has many technological innovations with respect to simulated television, have only the change of signal, and the circulation way of not touching media content.
IMS based IPTV (based on the IPTV of IMS) provides IPTV professional under the overall architecture of IMS; Come streaming media service to be provided and to merge Streaming Media and the professional multimedia service of real-time session to make full use of mechanism such as existing registration, authentication, route, session control and foundation in the IMS network, service trigger, charging, end-to-end QoS (Quality of Service, service quality) assurance for the user.That is to say that user's Multimedia session is to accomplish through the existing session control mechanism of IMS, in setting up conversation procedure, need reserve bearing resource for the transmission of Media Stream.
Fig. 1 is normal structure ETSI TISPAN (Telecommunications and Internet convergedServices and Protocols for Advanced Networking; Telecommunications and internet converged services and high-level network protocol) the business function framework of IMS based IPTV of definition; Mainly comprise UE (UserEquipment; Subscriber equipment), be responsible for the functional entity such as IPTV media function (IPTV Media Functions) entity, IPTV service control function entity, core IMS of control and the payment of UE Media Stream and the UPSF (User Provide Function, the user provides function) of storing user subscription information.Wherein, IPTV Media Functions can be decomposed into MCF (Media ControlFunction, media control function) and MDF (Media Delivery Function, media delivery function) from functional perspective.MDF is some media servers normally; Under the control of media control function, transmit the Media Stream that the user needs to user terminal; MCF can also receive the Play Control operation with process user; Usually use RTSP (Real Time Streaming Protocol, real-time streaming protocol) to realize, the for example F.F. of medium, retreat, suspend, operation such as location.UE communicates by letter with the IPTV media function through transmission process function (Transport ProcessingFunctions), core IMS respectively; Core IMS is connected with the transmission process function through NASS (NetworkAttachment Subsystem, Network Attachment Subsystem) and RACS (Resource and AdmissionControl Subsystem, resource and admission control subsystem).In addition; In IPTV service control function entity, IPTV media control function entity and IPTV media delivery functional entity, comprise respectively: CoD (Content on Demand; Content-on-demand) function, BC (Broadcast; Broadcast capability) entity and PVR (Person Video Record, personal video recording) function etc.
IPTV UE is professional to control IPTV UE and the Gm between the Core IMS, Core IMS and Core IMS and the professional ISC interface of controlling between (SCF) of IPTV that uses, and the interface between the CSCF of Core IMS inside is all based on Session Initiation Protocol.
As one of basic TV form of programs, real-time television LTV (Linear TV or Live TV) is the highest a kind of television services of present utilization rate.The basic service process of LTV is that user terminal (UE or STB) was shown to the user through the TV program information of acceptance broadcasting and with the programme information that receives after the user started shooting.
TsTV (Time Shift TV; Time-moving television) is one of another big main business form among the TV; Some programs that the user can use TsTV to watch LTV to play; For example the user has been because time relation has been missed the ball match that certain time broadcasted etc. of watching over, and operations such as the user can retreat in progress TV programme when watching the TsTV TV programme, F.F., time-out.Even the user watches the LTV TV programme; Certain time in the past of in watching LTV TV programme process, hoping to jump to begins to watch, and perhaps hopes to control current TV programme of watching (retreat, F.F., slow-motion, time-out etc.) operation and carries out the TsTV business model.
Because the user is professional at visit LTV at first; And when the user transfers the TsTV business model to by the LTV business model, need network side to carry out proper process to user's control operation; Therefore require network side user's controlled function (Trick Mode) to be provided to this LTV channel, user's controlled function refers to controls such as the user can retreat media content, F.F., slow-motion, time-out, redirect.
But usually network side is not to all channels user's controlled function function to be provided all, and promptly some channel user can carry out the time shift operation other and then can not.Therefore when certain LTV channel of terminal request visit, can obtain this LTV channel and whether support user's controlled function.Even because reason such as the user is signatory,, but might this user do not possess the authority of user's controlled function even user's controlled function function is provided for certain channel network side.Therefore IPTV UE needs and can confirm whether allow to use user's controlled function function for the channel of being visited through certain approach after business was set up Cheng Qian or professional foundation, and need know the situation of the metadata (service parameter) of channel, program or content.
Yet in the prior art, the parameter of transmitting between IPTV UE and the service equipment is very limited, can not obtain about whether allowing service parameter that uses user's controlled function function, channel, program or content etc. through these parameters.
Summary of the invention
The embodiment of the invention provides a kind of method, equipment and functional entity of the IPTV of transmission service parameter, and set up in the process independent sessions protocol interaction process through initial session and obtain user's controlled function authority, and the service parameter of channel, program or content.
The embodiment of the invention provides a kind of method of the IPTV of transmission service parameter, may further comprise the steps:
Obtain service parameter; Said service parameter comprises: whether support user's controlled function, whether license to this user and carry out user's controlled function, the initial multicast service of user, support in the current programme content of initial access positional information, multicast service of multicast service of time-shifting function one or more;
Confirm to carry out the television services operation according to said service parameter; When said service parameter is not supported user's controlled function or do not license to this user to carry out user's controlled function, forbid the time shifted TV business operation.
The embodiment of the invention provides a kind of IPTV subscriber equipment, comprising:
The service parameter acquiring unit is used to obtain service parameter; Said service parameter comprises: whether support user's controlled function, whether license to this user and carry out user's controlled function, the initial multicast service of user, support in the current programme content of initial access positional information, multicast service of multicast service of time-shifting function one or more;
Operating unit is connected with said service parameter acquiring unit, is used for carrying out the television services operation according to said service parameter; When said service parameter is not supported user's controlled function or do not license to this user to carry out user's controlled function, forbid the time shifted TV business operation.
The embodiment of the invention provides a kind of time shifted TV business controlled function entity, comprising:
The request receiving element is used to receive the request message from the IPTV subscriber equipment;
The service parameter transmitting element is connected with the described request receiving element, be used to receive described request message after, send service parameter to said IPTV subscriber equipment; Said service parameter comprises: whether support user's controlled function, whether license to this user and carry out user's controlled function, the initial multicast service of user, support in the current programme content of initial access positional information, multicast service of multicast service of time-shifting function one or more.
The embodiment of the invention provides a kind of meta-data function entity, comprising:
The first request receiving element is used to receive the request message from the IPTV subscriber equipment;
The first service parameter transmitting element is connected with the said first request receiving element, be used to receive described request message after, to said IPTV subscriber equipment transmission service parameter; Said service parameter comprises: whether support user's controlled function, whether license to this user and carry out user's controlled function, the initial multicast service of user, support in the current programme content of initial access positional information, multicast service of multicast service of time-shifting function one or more.
In the embodiments of the invention; Carry service parameter through conversation message; As whether support user's controlled function; If do not support user's controlled function or do not allow the user to carry out user's controlled function operation, just can forbid that through the service parameter that gets access to the operation of user's controlled function avoids unnecessary trial in this locality so for certain business network side.And then whether IPTV UE can carry out user's control through the business of interface prompt user current accessed.
Description of drawings
Fig. 1 is the business function Organization Chart of IMS based IPTV in the prior art;
Fig. 2 is a process of obtaining service parameter in the embodiment of the invention through requests/response messages;
Fig. 3 is a process of obtaining service parameter in the embodiment of the invention through subscribing message;
Fig. 4 is a kind of IPTV user terminal structure figure in the embodiment of the invention;
Fig. 5 is a kind of time shifted TV business functional entity structure chart in the embodiment of the invention;
Fig. 6 is a kind of meta-data function entity structure diagram in the embodiment of the invention.
Embodiment
Be elaborated below in conjunction with accompanying drawing and specific embodiment.
In the embodiment of the invention one, the flow process that UE obtains service parameter through the INVITE process is as shown in Figure 2, may further comprise the steps:
Step s201, UE sends INVITE request message requests visit IPTV professional (as being sip:bc1ltv.example.com) through P-CSCF, S-CSCF to SCF;
Step s202, SCF obtains the service parameter of being visited.This service parameter comprises some or all of in the following information:
A) whether the business of user request supports user's controlled function, and whether licenses to this user and carry out user's controlled function.As user request be the professional or multicast service bag of BC (Broadcast, multicast), then SCF returns all BC professional (bag) that this BC professional (bag) or user possibly visit to UE and whether supports whether time-shifting function is that the user provides time-shifting function perhaps.Wherein comprise in user's controlled function: the broadcasting speed that whether allows to suspend, allow, whether allow redirect etc.UE knows whether allow after user's controlled function can this locality to forbid or enable media control function or time-shifting function;
B) if the multicast service bag of user request, then business datum comprises the initial multicast service of user.Initial multicast service comprises the multicast service of visit when acquiescence multicast service that business packet that the user is provided with is associated or user withdrawed from last time or the multicast service that SCF at first visits according to local policy suggestion user, like program recommendation multicast service etc.UE knows that can switch to initial multicast service behind the initial multicast service avoids not knowing because knowing that business in this visit multicast service bag how this carries out Business Processing;
C) if request be that multicast service or content-on-demand CoD are professional; Then SCF returns the initial access positional information of the multicast service that possibly support time-shifting function to UE; Program break point information when last time, the user left multicast service; Perhaps CoD business initial access location information, the user left the content breakpoint information of CoD when professional like last time, and this positional information can comprise the breakpoint temporal information of multicast service or CoD content.UE can directly begin for the user problem of avoiding the user to reorientate of serving to be provided from endpoint location after knowing above-mentioned breakpoint temporal information;
D) SCF returns the service parameter of current program of the multicast service of initial access to UE, and perhaps SCF returns the service parameter of the business (content of active user's program request in like the CoD business) that the user visits to UE.Wherein service parameter comprises: the program of user capture or the pouplarity of content, other users briefly introduce its good opinion rating, the content rating of program (suitable crowd), performer, the place of production, Pgmtime length, voice and captions available language kind, program or content etc.UE knows that can information be offered the user behind the above-mentioned service parameter strengthens user's business experience for the business tine information that the user provides the user to be concerned about;
E) preference information of the user capture program of the individual preference of user's setting or operator's setting; Being convenient to the terminal provides more personalized Operational Visit according to preference information, the speech selection of the captions that adopt like suggestion and the audio-frequency unit of program or content etc.UE can be that the user provides business with what meet user and operator hobby and expectation after knowing above-mentioned preference information, not only can strengthen user's business experience, and can a kind of means easily be provided for operator carries out business control.
SCF can also can acquire service parameter through external network entity, as obtaining service parameter from the HSS functional entity through the local service parameter of preserving user and programme content.
Step s203, SCF returns the 200OK response message through P-CSCF, S-CSCF to UE, carries in this response message to reach service parameter.
Step s204 after UE receives response message, returns acknowledge message ACK to SCF.And receive IPTV service media data from network and IPTV is provided professional use for the user.
Wherein among the step s203, whether support and/or allow user's controlled function can be in the following manner:
1, carry through expansion URI parameter mode, message format is following:
sip:bc1scf1.example.com；+rtsp.play；+rtsp.pause；+rtsp.speed＝″-16～16″
Perhaps when user capture BC business packet as the parameter of BC business packet sign URI:
sip:bc-pkg1scf1.example.com；+rtsp.play；+rtsp.pause；+rtsp.speed＝″-16～16″
Wherein, "+rtsp.play; + rtsp.pause " represent that this user can carry out professional execution and time-out based on rtsp; + rtsp.speed="-16～16,32 " expression allows the user to select the scope of broadcasting speed, promptly-16 arbitrary speed between times speed to the 16 times speed or 32 times of speed.
This URI can carry through header fields such as Contact.
2, carry through extended message header field mode, message format is following:
Supported:rtsp.play，rtsp.pause，rtsp.speed＝″-16～16″
Wherein, the implication of " Supported:rtsp.play, rtsp.pause, rtsp.speed=" 16～16 " " is identical with the implication of passing through Contact URI parameter mode.
3, carry through extended message body mode, message format is following:
Content-type:application/trick
Allow-Trick-Mode:rtsp.play，rtsp.pause，rtsp.speed＝″-16～16″
Wherein, " Content-type:application/trick-mode " expression indicates whether to support and/or allow user's controlled function through the message body mode; The implication of " Allow-Trick-Mode:rtsp.play, rtsp.pause " is identical with the implication of passing through Contact URI parameter mode.
4, carry through extended message body mode, wherein as BC professional perhaps BC business packet or other service parameters of being visited, message format is as follows:
Content-Type:application/trick-info
Content-Length:(...)
<bc-package?name＝”example-package0”，
Trick=" play, pause, rtsp.speed=-16～16 "/// the professional speed control that allows terminal plays, suspends and carry out corresponding speed of the interior all-multicast of this bag
Bc-package name=" example-package1 ", trick=" not-supported "/// this bag in the all-multicast business do not support user's controlled function
Bc-package name=" example-package2 ", trick=" supported "/// this bag in the all-multicast business all support user's controlled function, undeclared permission user controlled function, therefore actual in not allowing
Bc-package name=" example-package3 ", trick=" allowed "/// this bag in the all-multicast business all allow user's controlled function
Bc-package name=" example-package4 ", trick=" not-allowed "/// this bag in the all-multicast business do not allow user's controlled function
<bc-package?name＝”example-package5”>
Bc-service name=" and channel1-in-example-package5 ", trick=" and allowed "/// this multicast service all supports and allows user's controlled function
Bc-service name=" and channel2-in-example-package6 ", trick=" and supported "/// this multicast service all supports user's controlled function, undeclared permission user controlled function is therefore actual in not allowing
Bc-service name=" and channel3-in-example-package7 ", trick=" and not-support "/// this multicast service do not support user's controlled function
Bc-service name=" and channel4-in-example-package8 ", trick=" and not-allowed "/// this multicast service do not allow user's controlled function, undeclared permission user controlled function, and therefore actual is not allow
<bc-service?name＝”channel4-in-example-package9”，
Trick=" play, pause, rtsp.speed=-16～16 "/// this multicast service allows terminal plays, suspends and carry out the speed control of corresponding speed
</package>
5, issue through on-link mode (OLM).Concrete, as:
P-trick-info:http://bc-scf1.example.com/user1-data-trick-desc.xml
Wherein the P-trick-info header field carries the link position " http://bc-scf1.example.com/user1-data-trick-desc.xml " of obtaining user's controlled function information description.Entities such as UE can obtain from appointed positions through http protocol when receiving above-mentioned 200OK response message.The describing mode of link indication document can adopt that above-mentioned the 4th kind of mode or other describing modes.
Among the step s203, if user's request is the multicast service bag, SCF is that UE provides the method for the multicast service of at first visiting to comprise;
1, carry through existing SIP header field (like P-Asserted-Identity), as:
P-Asserted-Identity:sip:bc-service1example.com
2, or through expansion SIP header field (like P-Initial-Service) carry, as:
P-Initial-Service:sip:bc-service1example.com
3, perhaps carry through message body, as:
Content-Type:application/initial-service-preference
P-Initial-Service＝sip:bc-service1example.com
4, carry in service related data that issues through on-link mode (OLM) or the information.Concrete, as:
P-service-desc:http://bc-scf1.example.com/user1-servcie-desc.xml
Wherein the P-service-desc header field carries and obtains the link position " http://bc-scf1.example.com/user1-servcie-desc.xml " that service related information is described, and wherein comprises initial multi-service information.Entities such as UE can obtain from appointed positions through http protocol when receiving above-mentioned 200OK response message.The describing mode of link indication document can adopt that above-mentioned the 3rd kind of mode or other describing modes.
Among the step s203, SCF is that UE provides the method for breakpoint temporal information to comprise;
1, carry through expansion URI parameter mode, message format is following:
sip:bc-service1ltv-scf.example.com；range＝″20060123T153600Z-″
Or:
sip:bc-service1；range＝″20060123T153600Z-″ltv-scf.example.com
Wherein, range=" 20060123T153600Z-" visited since 15: 36 seconds on the 23rd January in 2006, did not wherein specify the concluding time.
2, carry through extended message body mode, wherein as the parameter of the professional perhaps BC business packet of BC or other business of being visited, message format is as follows:
Content-Type:application/service-info
<bc-package?name＝”example-package5”>
<bc-service?name＝”channel1-in-example-package5”，
range＝″20060123T153600Z-″/>
</package>
3, issue through on-link mode (OLM).Concrete, as:
P-service-desc:http://bc-scf1.example.com/user1-servcie-desc.xml
Wherein the P-service-desc header field carries and obtains the link position http://bc-scf1.example.com/user1-servcie-desc.xml that service related information is described, and wherein comprises professional breakpoint temporal information.Entities such as UE can obtain from appointed positions through http protocol when receiving above-mentioned 200OK response message.The describing mode of link indication document can adopt that above-mentioned the 2nd kind of mode or other describing modes.
Among the step s203, SCF returns the service parameter of program or content to UE.Concrete, as;
1, carry through extended message body mode, wherein as the parameter of the professional perhaps BC business packet of BC or other business of being visited, message format is as follows:
Content-Type:application/service-info
<bc-package?name＝”example-package1”>
<bc-service?name＝”channel1-in-example-package1”，
time-start＝″20060123T153600Z″，pop-level＝”5”，
evalue＝”good”，age-level＝”15”，actor＝”actora，actorb”，source＝”china”，
time-length＝”5400”，voice-language＝”mandarin，cantonese”，
title-language＝”Simplified-Chinese”，introduction＝”A?tale?for?a?hero...”/>
</package>
<cod-content?name＝”sip:move1.example.com”；pop-level＝”5”，
evalue＝”goof”，age-level＝”15”，actor＝”actora，actorb”，source＝”china”，
time-length＝”5400”，voice-language＝”mandarin，cantonese”，
title-language＝”Simplified-Chinese”，introduction＝”A?tale?for?a?hero...”/>
</package>
Wherein, hot-level parametric representation pouplarity, evalue parametric representation spectators estimate; Age-level parametric representation content or age class, the actor parameter is carried actor information, and the source parameter is transmitted the place of production; The time-length parameter is carried time span; The voice-language parameter is carried the available audio language or the type of dialect, and the title-language parameter is carried the language of captions, and the introduction parameter is carried the program introduction.Also need carry the available information of information for multicast service, begin effectively from that time point like time-start.
2, issue through on-link mode (OLM).Concrete, as:
P-service-desc:http://bc-scf1.example.com/user1-serveie-desc.xml
Wherein the P-service-desc header field carries and obtains the link position http://bc-scf1.example.com/user1-servcie-desc.xml that service related information is described, and wherein comprises the service parameter of program or content.Entities such as UE can obtain from appointed positions through http protocol when receiving above-mentioned 200OK response message.The describing mode of link indication document can adopt that above-mentioned the 1st kind of mode or other describing modes.
Among the step s203, SCF returns the preference information of user or operator's setting to UE.Concrete, as;
1, carry through expansion URI parameter mode, message format is following:
sip:bc-service1ltv-scf.example.com；voice-language＝”mandarin”；
title-language＝”Simplified-Chinese”
Perhaps when user capture BC business packet as the parameter of BC business packet sign URI:
sip:bc-pkg1ltv-scf.example.com；voice-language＝”mandarin”；
title-language＝”Simplified-Chinese”
Wherein, voice-language=" mandarin " the first-selected Chinese mandarin of expression voice, title-language=" Simplified-Chinese " the first-selected simplified form of Chinese Character of expression captions.
This URI can carry through header fields such as Contact.
2, or through expansion SIP header field (like P-Preference) carry, as:
P-Preference:voice-language＝”mandarin”；
title-language＝”Simplified-Chinese”
3, perhaps carry through message body, as:
Content-Type:application/preference-desc
voice-language＝”mandarin”
title-language＝”Simplified-Chinese”
4, carry in service related data that issues through on-link mode (OLM) or the information.Concrete, as:
P-pref-desc:http://bc-scf1.example.com/user1-preference-desc.xml
Wherein the P-pref-desc header field carries and obtains the link position " http://bc-scf1.example.com/user1-preference-desc.xml " that preference information is described, and wherein comprises initial multi-service information.Entities such as UE can obtain from appointed positions through http protocol when receiving above-mentioned 200OK response message.The describing mode of link indication document can adopt that above-mentioned the 3rd kind of mode or other describing modes.
Described SCF in the foregoing description and sent service parameter through Operational Visit request responding message, same SCF can carry service parameter through the sip message in any protocol interaction process of UE.Those skilled in the art can derive the implementation method of obtaining service parameter in other possible Session Initiation Protocol reciprocal processes according to the foregoing description easily.
The network architecture of IMS based IPTV is as shown in Figure 1 in the existing TISPAN standard, but can find out that from the existing network framework not having suitable logic function is the functional entity that IPTV UE etc. provides service parameter.Therefore need to increase a meta-data function entity (METADATA-FUNC) and be used to the function that other network entities in the network provide the IPTV service parameter, wherein the meta-data function entity can be positioned at other entities such as SCF as a sub-function module or as an independent function entity existence.In the embodiment of the invention three, it is as shown in Figure 3 to obtain professional service parameter flow process through the SUBSCRIBE/NOTIFY process from the meta-data function entity, may further comprise the steps:
Step s301, IPTV UE sends SUBSCRIBE (subscription) message to the meta-data function entity, subscribes to the service parameter (Service-Meta-Data) of a multicast service.Carry in this message: event type is (as being: service-melta-data); Simultaneously optional possibly comprise following some or all of information: ID is (as being: sip:user1example.com); (as being: sip:bc1ltv.example.com) expression need be obtained this professional business datum to service identification; The IPTV srvice instance information of having set up (as being professional defined SIP session of IPTV or dialogue identifier dialog-id=call-id-a%3Bto-tag%3Dtag-a3Bfrom-tag%3Dtag-b).Partial content like SUBSCRIBE message is:
SUBSCRIBE?sip:scf1.example.com?SIP/2.0
Event:service-melta-data；aor＝”sip:user1example.com”；
service＝”bc1ltv.example.com”；
dialog-id＝call-id-a％3Bto-tag％3Dtag-a3Bfrom-tag％3Dtag-b
Step s302, the meta-data function entity returns the 200OK response message to UE.
Step s303, the meta-data function entity sends the NOTIFY notification message to UE, and this message is carried the service parameter Service-Meta-Data that sends channel.Wherein the description of service parameter and transfer mode can pass through the combination in any of the multiple mode among the embodiment one, and can adopt direct mode business transferring parameter perhaps to pass through the link of indirect mode business transferring parameter.
Step s304, UE returns the 200OK response message to the meta-data function entity.
The acquisition methods of subscribing to service parameter in the multicast service access instances has been described in the foregoing description; Can be applied to equally obtain and the relevant service parameter of the incoherent multicast service of Operational Visit instance, and obtain the service parameter that relevant with the Operational Visit instance or incoherent BC business packet, CoD are professional, TsTV is professional and other IPTV is professional.
Among above-mentioned all embodiment detailed description IPTV UE obtain the method for service parameter; But these methods are equally applicable to other network entities and obtain the method that IPTV UE obtains service parameter, can use in the foregoing description the processing method of UE to obtain service parameter and the distribution of media of business is controlled like media function.Those skilled in the art are easy to obtain according to above-mentioned IP TV UE the method for service parameter and derive the detailed implementation method that other functional entitys obtain service parameter.
The embodiment of the invention provides a kind of IPTV subscriber equipment, and is as shown in Figure 4, comprising: service parameter acquiring unit 10 is used to obtain service parameter; Operating unit 20 is connected with service parameter acquiring unit 10, is used for determining whether to support user's controlled function according to service parameter, and whether licenses to this user and carry out user's controlled function.Service parameter comprises: whether support tracing mode, and channel, program and the content information supported in one or more; Or comprise the chained address that service parameter is corresponding, obtain service parameter indirectly through the chained address.
Wherein, when needs when LTV SCF obtains information, service parameter acquiring unit 10 specifically comprises: access request is sent subelement, is used for sending access request to LTV SCF; Response receives subelement, is used to receive the response message that LTV SCF returns, and response message carries service parameter.
When needs when the meta-data function entity obtains information, service parameter acquiring unit 10 specifically comprises: subscription request is sent subelement, is used for sending subscription request to the meta-data function entity; Notification message receives subelement, is used to receive the notification message that the meta-data function entity returns, and carries service parameter in the notification message.
The embodiment of the invention provides a kind of time shifted TV business controlled function entity, and is as shown in Figure 5, comprising: request receiving element 100 is used to receive the request message from the IPTV subscriber equipment; Service parameter transmitting element 200 is connected with request receiving element 100, after being used to receive request message, sends service parameter to the IPTV subscriber equipment; Service parameter acquiring unit 300; Be used for obtaining service parameter from the meta-data function entity; And this service parameter sent to the IPTV subscriber equipment through service parameter transmitting element 200; Concrete acquisition process can include but not limited to following steps: service parameter acquiring unit 300 sends subscription request message to the meta-data function entity, comprises information such as the type that need obtain service parameter, content in this message; The meta-data function entity sends a notification message to service parameter acquiring unit 300, comprises the corresponding service parameter in this message.
The embodiment of the invention provides a kind of meta-data function entity; This meta-data function entity can be positioned at other entities such as time shifted TV business controlled function entity and exist as a sub-function module or as an independent function entity; When as an independent function entity; This meta-data function entity needs and can communicate by letter with time shifted TV business controlled function entity, perhaps communicates by letter with P-CSCF.As shown in Figure 6, comprising: the first request receiving element 1000 is used to receive the request message from the IPTV subscriber equipment; The first service parameter transmitting element 2000 is connected with the first request receiving element 1000, after being used to receive request message, sends service parameter through P-CSCF to the IPTV subscriber equipment.Under this kind situation; Subscriber equipment can directly obtain service parameter from the meta-data function entity through P-CSCF; Detailed process is: subscriber equipment can send to the first request receiving element 1000 through P-CSCF and obtain the service parameter request message; The first service parameter transmitting element 2000 sends response message to this subscriber equipment, carries the corresponding service parameter in this message.
Certainly, the meta-data function entity can also send service parameter to time shifted TV business controlled function entity, supplies subscriber equipment to obtain service parameter from time shifted TV business controlled function entity.Therefore, also need comprise the second request receiving element 3000, be used to receive request message from time shifted TV business controlled function entity; The second service parameter transmitting element 4000 is connected with the second request receiving element 3000, after being used to receive request message, sends service parameter to time shifted TV business controlled function entity.Detailed process comprises: time shifted TV business controlled function entity sends to the second request receiving element 3000 and obtains the service parameter request message; The second service parameter transmitting element 4000 sends response message to this time shifted TV business controlled function entity, carries the corresponding service parameter in this message.
In the embodiments of the invention; After subscriber equipment determines whether to allow user's controlled function through the service parameter that obtains; If do not support user's controlled function or do not allow the user to carry out user's controlled function operation, just can forbid that through the channel information that gets access to the operation of user's controlled function avoids unnecessary trial in this locality so for certain channel network side.If the multicast service bag of user's request; Then service parameter is the initial multicast service of user, and therefore, the user can switch to this initial service after knowing initial service; Avoid because do not know the business in this access service bag, and do not know how this carries out Business Processing; If request is that multicast service or content-on-demand CoD are professional, then the service parameter that obtains of user is the breakpoint temporal information, can directly begin for the user problem of avoiding the user to reorientate of serving to be provided from breakpoint location.
Through the description of above execution mode, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product; This computer software product is stored in the storage medium; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the method for each embodiment of the present invention.
More than disclosedly be merely several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (14)
1. a method of transmitting the IPTV service parameter is characterized in that, may further comprise the steps:
Obtain service parameter; Said service parameter comprises: whether support user's controlled function, whether license to this user and carry out user's controlled function, the initial multicast service of user, support in the current programme content of initial access positional information, multicast service of multicast service of time-shifting function one or more;
Carry out corresponding television services operation according to said service parameter; When said service parameter is not supported user's controlled function or do not license to this user to carry out user's controlled function, forbid the time shifted TV business operation.
2. transmit the method for IPTV service parameter according to claim 1, it is characterized in that, said service parameter obtains through time shifted TV business controlled function SCF:
Send access request to SCF;
Receive the response message that said SCF returns, said response message carries service parameter.
3. like the method for the said transmission of claim 2 IPTV service parameter, it is characterized in that, saidly after SCF sends access request, also comprise;
Said SCF obtains service parameter from the meta-data function entity.
4. transmit the method for IPTV service parameter according to claim 1, it is characterized in that, said service parameter obtains through the meta-data function entity:
Send subscription request to the meta-data function entity;
Receive the notification message that said meta-data function entity returns, carry service parameter in the said notification message.
5. like the method for each said transmission IPTV service parameter in the claim 1 to 4, it is characterized in that said service parameter comprises corresponding chained address, obtains service parameter indirectly through said chained address.
6. like the method for each said transmission IPTV service parameter in the claim 2 to 4, it is characterized in that said mode of carrying service parameter comprises: carry, carry or carry through the extended message body through the extended message header field through expansion URI parameter.
7. an IPTV subscriber equipment is characterized in that, comprising:
The service parameter acquiring unit is used to obtain service parameter; Said service parameter comprises: whether support user's controlled function, whether license to this user and carry out user's controlled function, the initial multicast service of user, support in the current programme content of initial access positional information, multicast service of multicast service of time-shifting function one or more;
Operating unit is connected with said service parameter acquiring unit, is used for carrying out the television services operation according to said service parameter; When said service parameter is not supported user's controlled function or do not license to this user to carry out user's controlled function, forbid the time shifted TV business operation.
8. like the said IPTV subscriber equipment of claim 7, it is characterized in that said service parameter acquiring unit specifically comprises:
Access request is sent subelement, is used for sending access request to SCF;
Response receives subelement, is used to receive the response message that said SCF returns, and said response message carries service parameter.
9. like the said IPTV subscriber equipment of claim 7, it is characterized in that said service parameter acquiring unit specifically comprises:
Subscription request is sent subelement, is used for sending subscription request to the meta-data function entity;
Notification message receives subelement, is used to receive the notification message that said meta-data function entity returns, and carries service parameter in the said notification message.
10. like each said IPTV subscriber equipment in the claim 7 to 9, it is characterized in that said service parameter comprises corresponding chained address, obtains service parameter indirectly through said chained address.
11. a time shifted TV business controlled function entity is characterized in that, comprising:
The request receiving element is used to receive the request message from the IPTV subscriber equipment;
The service parameter transmitting element is connected with the described request receiving element, be used to receive described request message after, send service parameter to said IPTV subscriber equipment; Said service parameter comprises: whether support user's controlled function, whether license to this user and carry out user's controlled function, support in the initial access positional information of multicast service of time-shifting function one or more.
12. like the said time shifted TV business controlled function of claim 11 entity, it is characterized in that, also comprise:
The service parameter acquiring unit is connected with said service parameter transmitting element, is used for obtaining service parameter from the meta-data function entity.
13. a meta-data function entity is characterized in that, comprising:
The first request receiving element is used to receive the request message from the IPTV subscriber equipment;
The first service parameter transmitting element is connected with the said first request receiving element, be used to receive described request message after, to said IPTV subscriber equipment transmission service parameter; Said service parameter comprises: whether support user's controlled function, whether license to this user and carry out user's controlled function, support in the initial access positional information of multicast service of time-shifting function one or more.
14. like the said meta-data function entity of claim 13, it is characterized in that, also comprise:
The second request receiving element is used to receive the request message from time shifted TV business controlled function entity;
The second service parameter transmitting element; Be connected with the said second request receiving element; After being used to receive described request message, send and said request message corresponding service parameter from time shifted TV business controlled function entity to said time shifted TV business controlled function entity; Said and said request message corresponding service parameter from time shifted TV business controlled function entity comprises: whether support user's controlled function, whether license to this user and carry out user's controlled function, support in the initial access positional information of multicast service of time-shifting function one or more.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710143030.8A CN101374102B (en) | 2007-08-21 | 2007-08-21 | Method, equipment and functional entity for transferring IPTV business parameter |
| PCT/CN2008/072029 WO2009024077A1 (en) | 2007-08-21 | 2008-08-18 | A method and device for acquiring an iptv service parameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200710143030.8A CN101374102B (en) | 2007-08-21 | 2007-08-21 | Method, equipment and functional entity for transferring IPTV business parameter |
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| CN101374102A CN101374102A (en) | 2009-02-25 |
| CN101374102B true CN101374102B (en) | 2012-07-04 |
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| WO (1) | WO2009024077A1 (en) |
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| CN102026024B (en) * | 2009-09-18 | 2013-03-20 | 中兴通讯股份有限公司 | Method, system and device for controlling pay per view (PPV) service in real time |
| CN101834799B (en) * | 2010-05-06 | 2012-12-19 | 工业和信息化部电信传输研究所 | Selection method of server of mobile IPTV (Internet Protocol Television), client, server and system |
| CN101909062A (en) * | 2010-08-09 | 2010-12-08 | 王铮夫 | Three network convergence-oriented service subscription, distribution and management system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1798323A (en) * | 2004-12-29 | 2006-07-05 | 华为技术有限公司 | Video terminal and method of implementing services of stream media |
| CN1917629A (en) * | 2006-08-14 | 2007-02-21 | Ut斯达康通讯有限公司 | Operation method of interactive television |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2394390C2 (en) * | 2005-10-07 | 2010-07-10 | Нокиа Корпорейшн | Method and device for notification on changes in services |
| US20070130601A1 (en) * | 2005-12-05 | 2007-06-07 | Weiping Li | Internet protocol (IP) television |
| CN1992735A (en) * | 2005-12-28 | 2007-07-04 | 中兴通讯股份有限公司 | Implementation method for IPTV set-top box access network and service fulfillment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1798323A (en) * | 2004-12-29 | 2006-07-05 | 华为技术有限公司 | Video terminal and method of implementing services of stream media |
| CN1917629A (en) * | 2006-08-14 | 2007-02-21 | Ut斯达康通讯有限公司 | Operation method of interactive television |
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| WO2009024077A1 (en) | 2009-02-26 |
| CN101374102A (en) | 2009-02-25 |
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