CN101360095A - Method, apparatus and system providing television service in session initial protocol network - Google Patents
Method, apparatus and system providing television service in session initial protocol network Download PDFInfo
- Publication number
- CN101360095A CN101360095A CNA2007101540280A CN200710154028A CN101360095A CN 101360095 A CN101360095 A CN 101360095A CN A2007101540280 A CNA2007101540280 A CN A2007101540280A CN 200710154028 A CN200710154028 A CN 200710154028A CN 101360095 A CN101360095 A CN 101360095A
- Authority
- CN
- China
- Prior art keywords
- channel
- sip
- uri
- network
- television
- 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.)
- Pending
Links
Images
Landscapes
- Telephonic Communication Services (AREA)
Abstract
An embodiment of the invention discloses a system for providing television services in session initiation protocol (SIP) network, comprising: a network television terminal function for initiating an SIP session request for a network television application server, wherein, the SIP session request contains an SIP uniform resource identifier (URI) for indicating channel information; and the network television application server which is used for parsing the SIP URI so as to acquire the channel information and confirming the television channel played to the network television terminal function according to the channel information. The invention also discloses a method for providing television services in the SIP network, a network television terminal and the network television application server. The invention can be used to mark television channels in the SIP network and uniquely mark television channels or television channel sets in the wide SIP network, thereby the television services can be offered in the SIP network, and an SIP entity can route SIP signaling to other specific SIP entities according to channel marks.
Description
Technical field
The present invention relates to TV (Internet Protocol Television based on the IP internet, IPTV) technical field, more specifically, (Session Initiation Protocol SIP) provides the methods, devices and systems of television services in the network to relate to a kind of session initiation protocol.
Background technology
(Session Initiation Protocol is by the Internet engineering duty group (Internet Engineering Task Force, IETF) one of multimedia communications system framework agreement of Zhi Dinging SIP) to session initiation protocol.Session Initiation Protocol is to be used for setting up, the application layer protocol of change or ending multimedia session, with RTP (Real-time Transport Protocol, RTP)/real time control protocol (Real TimeControl Protocol, RTCP), Session Description Protocol (Session Description Protocol, SDP), real-time streaming protocol (Real Time Streaming Protocol, RTSP), name server (DomainName Server, DNS) etc. agreement cooperates, finish IP Multimedia System (IP MultimediaSubsystem, IMS) in session foundation and media negotiation jointly.In current communication system, Session Initiation Protocol is extensive use, as network of future generation (Next Generation Network, NGN)/IMS etc.
NGN is based on the pattern of fusion network of group technology, based on packet switching, and the framework that adopts carrying to separate with control.NGN combines the advantage of fixed-line telephone network, mobile telephone network and IP network, make analog subscriber, digital subscriber, mobile subscriber, ADSL (Asymmetric Digital Subscriber Line) (AsymmetricalDigital Subscriber Loop, ADSL) (Integrated ServicesDigital Network, ISDN) user of user, IP narrowband network user, IP broadband network user or even access via satellite can both intercom mutually as a member in the next generation network for user, Integrated Service Digital Network(ISDN).IMS is Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, WCDMA) be superimposed upon a subsystem that has on the packet domain in the network, adopt the bearer path of packet domain, introduce Session Initiation Protocol as professional control protocol for its upper strata control signaling and media delivery.
IPTV (IMS based IPTV) based on IMS provides IPTV business under the IMS overall architecture, (Quality Of Service, QoS) mechanism such as assurance comes streaming media service to be provided and to merge Streaming Media and real-time session business for the user to make full use of existing registration, authentication, route, session control and foundation in the IMS network, professional triggering, charging, end-to-end quality of service.The user finishes by the existing session control mechanism of IMS to the Multimedia session of content, in setting up conversation procedure, need reserve bearing resource for the transmission of Media Stream.
Defined at present the business function framework of the IPTV (IMS based IPTV) based on IMS.IPTV media function (IPTV Media Functions) is responsible for the control and the payment (Delivery) of UE Media Stream.Be decomposed into media control function (MCF/Media Control Function) and media delivery function (MDF/Media Delivery Function) from functional perspective, and defined function corresponding.
The traditional tv channel identifies based on the bands/frequencies that transmits program.A country has the program frequency band or the channel division table of a standard, and spectrum division between different regions/country may be different, terminal or television set be tuned to different frequency receive the TV programme of different channel.
Existing IPTV product adopts ip multicast address designation channel usually, and the ip multicast address is only effective in the IP local area network (LAN), and is not suitable for the IP wide area network, therefore uses the improper internet widely of mode of multicast address sign channel.
In addition, in RFC2838, describe unified resource identifier (URI) mechanism of internet television broadcasting at present, be called TV URI.The basic format of TV URI is tv:＜broadcast 〉, wherein broadcast is the description of data source, adopts name server (Domain Name Server, DNS) identifier of type.For guaranteeing the television channel unique mark, TV URI mechanism uses DNS type identification symbol to identify all broadcasting streams.Because based on the register system of DNS main frame-title, TV URI mechanism can solve the identical situation of name.Yet the DNS type identifier does not need to mate real host name, do not use dns resolution mechanism that they are resolved to the IP address, so TV URI does not have the signalling route function.And TV URI carries the service parameter inconvenience, does not also have at present in the using SIP network, therefore can not identify television channel in the SIP network.
Summary of the invention
The embodiment of the invention has proposed to provide in a kind of SIP network the system of television services, identifies television channel in the SIP network, provides television services to be implemented in the SIP network.
The embodiment of the invention has also proposed a kind of method that television services is provided, and identifies television channel in the SIP network, provides television services to be implemented in the SIP network
The embodiment of the invention has also proposed a kind of network TV terminal, provides television services to be implemented in the SIP network.
The embodiment of the invention has also proposed a kind of Web TV application server, provides television services to be implemented in the SIP network.
The embodiment of the invention has also proposed a kind of television channel identification server, provides television services to be implemented in the SIP network.
The embodiment of the invention has also proposed a kind of Core IMS, provides television services to be implemented in the SIP network.
The technical scheme of the embodiment of the invention comprises:
A kind of system that television services is provided in the SIP network comprises:
The network TV terminal function is used for initiating the SIP conversation request to the Web TV application server, comprises the SIP unified resource designator URI that indicates channel information in described SIP conversation request;
The Web TV application server is used to resolve described SIP URI obtaining described channel information, and determines the television channel play to the network TV terminal function according to this channel information.
The method of television services is provided in a kind of SIP network, and this method comprises:
The Web TV application server receives the SIP conversation request of being initiated by the network TV terminal function, comprises the SIP URI that indicates channel information in described SIP conversation request;
The described SIP URI of Web TV application server parses to be obtaining described channel information, and determines the television channel play to the network TV terminal function according to this channel information.
The method of television services is provided in a kind of SIP network, it is characterized in that, this method comprises:
The television channel identification server receives the SIP URI query requests that comprises TV URI from the network TV terminal function, the television channel identification server is according to the corresponding relation of TV URI and SIP URI, to send to the network TV terminal function corresponding to the SIP URI of TVURI, wherein in described SIP URI, comprise channel information;
The Web TV application server receives the SIP conversation request of being initiated by the network TV terminal function, comprises described SIP URI in described SIP conversation request;
The described SIP URI of Web TV application server parses to be obtaining described channel information, and determines the television channel play to the network TV terminal function according to this channel information.
The method of television services is provided in a kind of SIP network, and this method comprises:
Core IMS receives the SIP conversation request that is sent by the network TV terminal function, comprises TV URI in described SIP conversation request; Core IMS sends SIP URI query requests according to the TV URI that is resolved to the television channel identification server;
The television channel identification server will send to Core IMS corresponding to the SIP URI of TV URI according to the corresponding relation of TV URI and SIP URI;
Core IMS is routed to the Web TV application server according to the SIP URI that receives with described SIP conversation request, the described SIP URI of Web TV application server parses to be obtaining described channel information, and determines the television channel play to the network TV terminal function according to this channel information.
A kind of network TV terminal function comprises that the SIP conversation request is initiated the unit and TV information represents the unit, wherein:
The SIP conversation request is initiated the unit, is used for initiating the SIP conversation request to the Web TV application server, comprises the SIP URI that indicates channel information in described SIP conversation request;
TV information represents the unit, is used to receive the television channel information of being determined according to this channel information by the Web TV application server, and represents described television channel information.
A kind of Web TV application server comprises that channel information acquiring unit and TV information provide the unit, wherein:
The channel information acquiring unit is used to receive the SIP conversation request, and resolves described SIP URI to obtain described channel information, wherein at the described SIP URI that indicates channel information that comprises in the SIP conversation request;
TV information provides the unit, is used for according to the definite television channel of playing to the network TV terminal function of this channel information, and sends described television channel information to described network TV terminal function.
A kind of television channel identification server comprises corresponding relation preservation unit and SIP URI query unit, wherein
Corresponding relation is preserved the unit, preserves the corresponding relation of TV URI and SIP URI;
SIP URI query unit, be used to receive the SIP URI query requests that comprises TV URI that network TV terminal function or Core IMS are sent, and, will send to described network TV terminal function or Core IMS corresponding to the SIP URI of this TV URI according to the corresponding relation of TV URI and SIP URI.
A kind of Core IMS comprises TV URI resolution unit and routing unit, wherein
TV URI resolution unit is used for receiving the SIP conversation request that includes TV URI from the network TV terminal function, parses TV URI from described SIP conversation request, and sends SIP URI query requests to the television channel identification server;
Routing unit is used for described SIP conversation request is routed to the Web TV application server, wherein comprises the SIP URI that is returned in response to described SIP URI query requests by the television channel identification server in described SIP conversation request.
From technique scheme as can be seen, the network TV terminal function comprises the SIP URI that indicates channel information in the SIP conversation request that Core IMS sends; The Web TV application server can be determined television channel according to channel information.As seen, channel identication of the present invention carries channel information based on SIP URI mechanism in SIP URI, therefore can identify television channel uniquely in the SIP network, can be implemented in the SIP network (containing IMS Based IPTV) live television service is provided.
Description of drawings
Fig. 1 is for providing the system configuration schematic diagram of television services in the SIP network according to the embodiment of the invention;
The system configuration schematic diagram of television services is provided in the SIP network of Fig. 2 for the preferred embodiment according to the present invention;
Fig. 3 is for providing the method flow schematic diagram of television services in the SIP network according to the embodiment of the invention;
Fig. 4 for according in the SIP network of the embodiment of the invention request watch default live or the time mobile television channel schematic flow sheet;
Fig. 5 is for watching the schematic flow sheet of specific channel according to request in the SIP network of the embodiment of the invention;
Fig. 6 is for watching the schematic flow sheet of specific channel-group according to request in the SIP network of the embodiment of the invention;
Fig. 7 is the network TV terminal structural representation according to the embodiment of the invention;
Fig. 8 is the Web TV application server structural representation according to the embodiment of the invention;
Fig. 9 is the television channel identification server structural representation according to the embodiment of the invention;
Figure 10 is the Core IMS structural representation according to the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention express clearlyer, the present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
Fig. 1 is for providing the system configuration schematic diagram of television services in the SIP network according to the embodiment of the invention.
As shown in Figure 1, this system comprises network TV terminal function (IPTV Terminal Function, ITF) 101 and Web TV application server (IPTV AS) 102.
Network TV terminal function 101 is used for initiating the SIP conversation request to Web TV application server 102, comprises the SIP URI that indicates channel information in described SIP conversation request;
Web TV application server 102 is used to resolve described SIP URI obtaining described channel information, and determines the television channel play to network TV terminal function 101 according to this channel information.
Preferably, can in SIP URI, comprise the indication channel information by expansion URI parameter or user type.The indication channel information can comprise: information such as member's channel information of the title of channel/channel-group and/or channel number, channel type, channel-group and service provider.
Such as, can increase a URI parameter newly, such as " tv ", and this URI parametric form that increases newly do not limit, and being used to identify this SIP URI is the television channel sign, parameter format (1):
Form (1): sip:user@host:port; Tv;
Perhaps, also can increase a user type newly, by the user type, the SIP entity can be determined the broadcast television channel that the network TV terminal function is just being asked, parameter format (2):
Form (2): sip:user@host:port; User=tv;
Perhaps, also can increase a URI parameter newly or adopt existing URI parameter, carry the TV URI of sign television channel information, parameter format (3):
Form (3): sip:user@host:port; Tv=" tv URI ".
Based on the form of above-mentioned definition, can adopt no channel information to represent default channel, promptly determine specific channel by network.The channel that the Web TV application server 102 that the TV business is provided decides the user to ask according to local policy or user related data.
Definite method of default channel is including but not limited to following mode:
A, the default channel that adopts Web TV application server 102 or main channel (being TV service provider's main channel) are as default channel;
The startup channel that channel that the user of B, employing record last time watched or user are provided with (being that the each start of user all begins to watch from this channel) is as default channel.
Based on above-mentioned form (1) and form (2), the sign of default channel is exemplified below:
Sip:TvServer.com; Tv or
sip：TvServer.com；user＝tv
Based on (1) and the form (2) of above-mentioned definition, the identification method of specific channel or channel-group can be as follows:
The specific channel information that is comprised among the SIP URI can comprise specific channel designation or specific channel number, specific channel group name claims or specific channel group #.May be including but not limited to following several situations:
(1), comprises specific channel information (containing specific channel number and/or specific channel designation);
(2), comprise specific channel information (containing specific channel number and/or specific channel designation), the URI parameter comprises the channel-group information of this specific channel ownership;
(3), comprise specific channel-group information (comprise specific channel group name claims and/or specific channel group #).
Such as: the channel number that Web TV application server 102 provides is 1023 television channel or channel-group, is exemplified below::
Sip:1023@TvServer.com; Tv or
sip：1023@TvServer.com；user＝tv
Such as: the address is exemplified below for the channel identication that TvServer.com Web TV application server 102 provides is the television channel of tv:wqed.org:
sip：TvServer.com；tv＝“tv：wqed.org”。Though more than specifically described the mode that identifies television channel by expansion URI parameter and user type, can also carry other parameters of channel by expanding other URI parameter.Other parameters of described channel wait other parameter including but not limited to service provider's information, channel type (as direct broadcast band or time shift channel) and channel attribute (as whether supporting the TrickMode attribute).The method of using user partly to describe default channel, specific channel and channel-group can have a lot, and the embodiment of the invention is not done any restriction to specific implementation method.
Such as: identify certain channel and whether have " whether supporting the TrickMode operation " attribute, identification method is exemplified below:
Sip:1023@TvServer.com; Tv; TrickMode; Or
sip：1023@TvServer.com；user＝tv；trickMode
In the current television system, often adopt the channel identication method of TV URI form, in the electronic program list (EPG) or the Web page, comprise the television channel (direct broadcast band or time shift channel) of TV URI sign based on the IP the Internet.
In the TV URI mechanism based on the RFC2838 definition, " broadcast " part is the identifier of DNS domain name type, does not have routing function.When tv URI was default channel descriptor format, the SIP URI of the sign TV channel after the conversion did not comprise channel information.Be exemplified below:
Tv URI is:＜tv:wqed.org〉(describing the WQED television channel)
Transforming back SIP URI is:
SIP URI:＜sip:wqed.org@example.com; User=tv; Or
＜sip:
Wqed.org@example.com; TvOr
<sip：example.com；tv＝“
wqed.org”>
Perhaps, in the SIP signaling, directly use tv URI.When ITF initiates the SIP session, in the Request-URI/To header field, directly comprise TV URI.After Core IMS receives the SIP conversation request, to the SIP URI of television channel identification server inquiry TV URI corresponding identification television channel, then IMS Core according to SIP URI route SIP signaling to the IPTV AS that television services is provided.
In addition, can also adopt existing header field of Session Initiation Protocol or header field parameter (or expansion header field or header field parameter) to carry default (or current) channel information.Also can adopt the mode of XML message to carry channel-group and information about firms, as define a kind of content type:
Content-Type：application/tv-package-list
XML message body is exemplified as:
<package?package-id＝”sip：package1@tvserver.com”；
<entry?channel＝”sip：channel1@tvserver.com”/>
<entry?channel＝”sip：channel2@tvserver.com”/>
</package>
Based on above-mentioned analysis, describe the specific embodiment of the present invention below in detail.
The system configuration schematic diagram of television services is provided in the SIP network of Fig. 2 for the preferred embodiment according to the present invention.
As shown in Figure 2, this system comprises IPTV terminal 201, IPTV application server 202, IMS core (Core IMS) 203 and television channel identification server 204.
The IPTV terminal that IPTV terminal 201 is watched television services for the user, it supports Session Initiation Protocol, serves as the sip user device role, asks television services by the route of IMS core 203 to the IPTV application server 202 that television services is provided.
Generally, the user can be provided with IPTV terminal 201, after each start, watches default channel or the last channel of watching automatically.In this case, after user's start, IPTV terminal 201 is initiated the SIP session automatically, comprises the SIP URI of the default channel formula of indication request in the Request-URI header field of the INVITE request of transmission.
When the user watches live television programming (LTV), select specific direct broadcast band or direct broadcast band group and click by electronic program list (EPG), IPTV terminal 201 is initiated the SIP session, comprises the SIP URI of specific channel of indication or channel-group in the Request-URI header field of the INVITE request of transmission.
After IPTV terminal 201 is received the reliable Temporary Response or success response of initial INVITE request, can add the ip multicast group of initial channel correspondence.
In television channel identification server 204, preserve the corresponding relation of TV URI and SIP URI.In conversation procedure, IPTV terminal 201 can by with the Q1 interface of television channel identification server 204 directly to the SIPURI of television channel identification server 204 inquiries with TV URI corresponding identification channel.
The process that IPTV terminal 201 is directly inquired about SIP URI by the Q1 interface specifically comprises: IPTV terminal 201 sends SIP URI query requests to television channel identification server 204, television channel identification server 204 is according to the corresponding relation of TV URI and SIP URI, to send to IPTV terminal 201 corresponding to the SIP URI of TV URI, the route of IPTV terminal 201 by IMS core 203 sends the SIP conversation request that includes the SIP URI that television channel identification server 204 returned to IPTV application server 202 then, IPTV application server 202 is resolved these SIP URI obtaining described channel information, and determines the television channel play to IPTV terminal 201 according to this channel information.
Television channel identification server 204 can also by and IMS core 203 between the Q2 interface query interface of TV URI is provided to IMS core 203 or other entities.IMS core 203 provides functions such as signalling route, session control and professional triggering.If IMS core 203 is received the SIP conversation request that comprises TV URI from IPTV terminal 201, then IMS core 203 is inquired about the SIP URI of this TV URI correspondence by the Q2 interface, and the SIP conversation request of IPTV terminal 201 being initiated according to the SIP URI that inquires about acquisition is routed to IPTV application server 202 then.
In SIP network embodiment illustrated in fig. 2, specifically adopt IMS core 203 to come route SIP conversation request to IPTV application server 202.In fact, the present invention is not limited thereto.It will be appreciated by those of skill in the art that so long as in the SIP network, have the entity of SIP conversation request routing function all to be applicable to the present invention, and IPTV terminal 201 can also be passed through the direct and IPTV application server 202 execution interactive functions of Session Initiation Protocol.
If the Request-URI header field does not comprise channel information, then think the default channel of IPTV terminal 201 request.IPTV application server 202 is determined the current channel of playing to the user according to local service rule or strategy.After IPTV application server 202 is determined default channel, the media description information (SDP Offer) that in sip response message SDP message body, comprises the channel correspondence, and can in reliable Temporary Response of SIP or success response message, comprise channel-group information, the channel-group sign of this default channel correspondence and the information of other member's channel.
If the Request-URI header field comprises specific channel or channel-group information, IPTV application server 202 is resolved channel information according to local policy or service logic, determines the specific channel or the channel-group of IPTV terminal 201 requests.If channel-group sign then determines that according to above-mentioned default channel method determines initial channel.IPTV application server 202 can comprise media description information, channel-group sign and other member's channel information of initial channel in reliable Temporary Response of SIP or success response message.
Use after the embodiment of the invention, channel identication can identify default television channel, specific TV channel and television channel group in the SIP network.Described SIP network includes but not limited to networks such as NGN/IMS/IMSBased IPTV.
Fig. 3 is for providing the method flow schematic diagram of television services in the SIP network according to the embodiment of the invention.As shown in Figure 3, this method comprises:
Step 301: the network TV terminal function is initiated the SIP conversation request to the Web TV application server, comprises the SIP URI that indicates channel information in described SIP conversation request;
Step 302: the described SIP URI of Web TV application server parses to be obtaining described channel information, and determines the television channel play to the network TV terminal function according to this channel information.
Based on above-mentioned flow process, in a kind of specific implementation, the network TV terminal function sends SIP URI query requests to the television channel identification server, the television channel identification server is according to the corresponding relation of TV URI and SIPURI, to send to the network TV terminal function corresponding to the SIP URI of TV URI, wherein in described SIP URI, comprise channel information; The network TV terminal function is initiated the SIP conversation request to the Web TV application server then, comprises described SIP URI in described SIP conversation request; The described SIP URI of Web TV application server parses to be obtaining described channel information, and determines the television channel play to the network TV terminal function according to this channel information.
In another specific implementation, the network TV terminal function sends the SIP conversation request to Core IMS, comprises TV URI in described SIP conversation request; Core IMS sends SIP URI query requests according to the TVURI that is resolved to the television channel identification server; The television channel identification server will send to CoreIMS corresponding to the SIP URI of TV URI according to the corresponding relation of TV URI and SIP URI; Core IMS is routed to the Web TV application server according to the SIP URI that receives with described SIP conversation request, the described SIP URI of Web TV application server parses to be obtaining described channel information, and determines the television channel play to the network TV terminal function according to this channel information.
More than describe the flow process of the embodiment of the invention in detail, below again in conjunction with the concrete flow process of describing each Application Example in detail of using.
Fig. 4 for according in the SIP network of the embodiment of the invention request watch default live or the time mobile television channel schematic flow sheet.
As shown in Figure 4, this method comprises:
Step 401: network TV terminal sends the INVITE request to Core IMS entity, and Request-URI is the SIP URI information of IPTV application server entity that the TV business is provided, and parameter User is for " tv " type or comprise " tv " parameter.
Step 402:Core IMS entity is routed to the IPTV application server according to the routing rule of existing Session Initiation Protocol with the INVITE request.
Step 403:IPTV application server is received INVITE request back parsing Request-URI, be judged as the conversation request of default channel identication, service authorization is by (200OK message), the IPTV application server is determined the current channel of watching of user according to local policy and/or user data then, and returns the channel-group information of the media description information (SDP offer) of this initial channel, default channel information, default channel correspondence and the relevant information of other member's channels to the user.
Step 404:Core IMS is forwarded to network TV terminal with the response message of IPTV application server.
Step 405: after network TV terminal is received response message, preserve the information that comprises in the response message, and reply (SDP Answer) message to the media description that Core IMS returns initial channel according to terminal capability.
The media description response message of step 406:Core IMS transmission network television terminal is to the IPTV application server.
Step 407: network TV terminal sends to the multicast control point according to the media negotiation result and adds the report of multicast group.
Step 408: the multicast control point sends the multicast Media Stream to network TV terminal.
Fig. 5 is for watching the schematic flow sheet of specific channel according to request in the SIP network of the embodiment of the invention.As shown in Figure 5, this method comprises:
Step 501: the network TV terminal entity sends INVITE and asks Core IMS entity, Request-URI is the SIP URI information of IPTV application server entity that the TV business is provided, parameter User is for " tv " type or comprise " tv " parameter, comprise concrete specific channel information, as specific channel coding or channel designation.
Step 502:Core IMS entity is routed to the IPTV application server according to the routing rule of existing Session Initiation Protocol with the INVITE request.
Step 503:IPTV application server is resolved Request-URI after receiving the INVITE request, is judged as the conversation request of specific channel identication, and service authorization passes through, and the IPTV application server is determined the current channel of watching of user then.The IPTV application server returns the channel-group information of the media description information (SDP offer) of initial channel, specific channel information, specific channel correspondence and the relevant information of other member's channels to the user.
Step 504:Core IMS transmits the response message of IPTV application server to network TV terminal.
Step 505: after network TV terminal is received response, preserve the information that comprises in the response, and return to the media description of Core IMS initial channel according to terminal capability and to reply (SDP Answer) message.
The media description response message of step 506:Core IMS transmission network television terminal is to the IPTV application server.
Fig. 6 is for watching the schematic flow sheet of specific channel-group according to request in the SIP network of the embodiment of the invention.
As shown in Figure 6, this method flow comprises:
Step 601: the network TV terminal entity sends INVITE and asks Core IMS entity, Request-URI is the SIP URI information of IPTV application server entity that the TV business is provided, parameter User is for " tv " type or comprise " tv " parameter, comprise specific channel-group information, as specific channel group coding or channel-group title;
Step 602:Core IMS entity is routed to the IPTV application server according to the routing rule of existing Session Initiation Protocol with the INVITE request.
Step 603:IPTV application server is resolved Request-URI after receiving the INVITE request, is judged as the conversation request of specific channel group id, and service authorization passes through, and the IPTV application server is determined the current channel-group of watching of user then.The IPTV application server can adopt in the following manner any to determine initial channel: adopt that default channel is an initial channel in the channel-group of Web TV application server setting; Or the interior channel of this channel-group that adopts the user last time to watch is an initial channel; Or the interior default channel of the channel-group that adopts the user to be provided with is an initial channel.The IPTV application server returns the relevant information of the media description information (SDP offer) of channel-group, specific channel-group information and other member's channels to the user.Another kind of optional mode is the television channel that the uncertain user of IPTV application server initially watches, and is selected the television channel of initially watching according to member's channel information by the user.
Step 604:Core IMS transmits the response message of IPTV application server to network TV terminal.
Step 605: after network TV terminal is received response, preserve the information that comprises in the response, and return to the media description of Core IMS channel-group according to terminal capability and to reply (SDP Answer) message.
The media description response message of step 606:Core IMS transmission network television terminal is to the IPTV application server.
Based on above-mentioned analysis, the embodiment of the invention has also proposed a kind of network TV terminal and Web TV application server.
Fig. 7 is the network TV terminal structural representation according to the embodiment of the invention.
As shown in Figure 7, this network TV terminal comprises that the SIP conversation request is initiated unit 701 and TV information represents unit 702.Wherein:
The SIP conversation request is initiated unit 701, is used for initiating the SIP conversation request to the Web TV application server, comprises the SIP URI that indicates channel information in described SIP conversation request;
TV information represents unit 701, is used to receive the television channel information of being determined according to this channel information by the Web TV application server, and represents described television channel information.
Alternatively, the SIP conversation request is initiated unit 701, be used for sending the SIP URI query requests that comprises TV URI to the television channel identification server, the SIP URI that reception is returned by the television channel identification server corresponding to this TV URI, and initiate to comprise the SIP conversation request of SIP URI to the Web TV application server, in described SIP URI, comprise channel information; At this moment
TV information represents unit 701, is used to receive the television channel information of being determined according to this channel information by the Web TV application server, and represents described television channel information.
Fig. 8 is the Web TV application server structural representation according to the embodiment of the invention.
As shown in Figure 8, this Web TV application server comprises that channel information acquiring unit 801 and TV information provide unit 802, wherein:
Channel information acquiring unit 801 is used to receive the SIP conversation request that comprises the SIP URI that indicates channel information, and resolves described SIP URI to obtain described channel information;
TV information provides unit 802, is used for according to the definite television channel of playing to the network TV terminal function of this channel information, and sends described television channel information to described network TV terminal.
The embodiment of the invention has also proposed a kind of television channel identification server.
Fig. 9 is the television channel identification server structural representation according to the embodiment of the invention.As shown in Figure 9, the television channel identification server comprises corresponding relation preservation unit 901 and SIP URI query unit 902, wherein
Corresponding relation is preserved unit 901, preserves the corresponding relation of TV URI and SIP URI;
SIP URI query unit 902, be used to receive the SIP URI query requests that comprises TV URI that network TV terminal function or Core IMS are sent, and, will send to described network TV terminal function or Core IMS corresponding to the SIP URI of this TV URI according to the corresponding relation of TV URI and SIP URI.
The embodiment of the invention has also proposed a kind of Core IMS.Figure 10 is the CoreIMS structural representation according to the embodiment of the invention.
As shown in figure 10, this Core IMS comprises TV URI resolution unit 1001 and routing unit 1002, wherein
TV URI resolution unit 1001 is used for receiving the SIP conversation request that includes TV URI from the network TV terminal function, parses TV URI from described SIP conversation request, and sends SIP URI query requests to the television channel identification server;
In sum, because the network TV terminal function comprises the SIP URI that indicates channel information in the SIP conversation request that application server sends, application server can be determined channel information according to this SIP URI, so the channel identication of the embodiment of the invention can identify default television channel, specific TV channel and television channel group in the SIP network.And the channel identication of the embodiment of the invention can identify a television channel or a television channel collection in the SIP network widely uniquely.And the SIP entity can be according to channel identication route SIP signaling to other specific SIP entities.
The present invention simultaneously can also be applied in the following live television service in IMS Based IPTV system:
Sign to live broadcast service in the IMS based IPTV system of TISPAN definition at present adopts the notion of business packet to be described, be the user subscribe to or subscribe to when contracting live broadcast service/signatory is a business packet, also be to initiate request during the request live broadcast service to this business packet, because a business packet can comprise several channels, the user that might IMS based IPTV network side can't know for sure this moment is current or initially want the channel watched, and can't network bandwidth resources be reserved, perhaps the needed Internet resources of channel watched of the network bandwidth resources that might be reserved and user do not match, the result causes or user's bandwidth demand can not satisfy, influence customer experience, perhaps bandwidth reserved is too much, the waste network bandwidth resources.
At the problems referred to above, following several solution can be arranged:
1) user watches live telecast to the IPTV system request, in request message, indicate in the business packet of request, carry concrete television channel information simultaneously, this concrete television channel information can be that the user obtains from service selection functional (SSF), it also can be the channel information of watching when withdrawing from last time of user terminal initial setting or record, or alternate manner obtains, also can be when carrying concrete television channel service identification information, and/or indicate channel-group (being business packet) sign simultaneously, business is set up in the process, the CAMEL-Subscription-Information of the network based business packet of IPTV is authorized user's visit, carry out resource reservation according to entrained concrete channel service identification information, after business was set up successfully, terminal added the television channel of access customer appointment.The described method of Fig. 5 can provide this scene of live television service.
2) user watches live telecast to the IPTV system request, if in request message, do not indicate concrete television channel but comprise channel-group information, or do not indicate concrete channel and television channel group, then determine the television channel that the user initially watches by the IPTV system, determine that mode can be the program preferences that is provided with according to the user in subscription data, or the user who derives according to user's program viewing statistics in earlier stage watches custom etc., determine that a suitable channel watches the initial channel of live broadcast service as the user, initial television channel information carries in the IPTV system in request response then, and/or channel-group information, and/or other member's channel information in the channel-group, and carry out resource reservation according to entrained initial channel information, after business was set up successfully, terminal added initial television channel.The described method of Fig. 4 can provide the live television service scene that does not indicate concrete channel and channel-group information in the request message.The described method of Fig. 6 can provide request message middle finger prescribed channel group but not indicate the live television service scene of concrete channel information.
3) user watches live telecast to the IPTV system request, if only carry television channel group information in the request message, do not indicate concrete television channel, and the IPTV system can't determine the interior television channel of this channel-group that the user initially watches, then the member's channel information in the IPTV notifications terminal channel-group (can be to carry in request response, also can be by other message or mode, as issue chained address of this channel-group etc.), at this moment, set up in the process in business, also can't accurately finish the reservation of Internet resources, the mandate that can only finish service request (can be accepted to join request from user's multicast as bearer network, and obtain the network parameter information of each channel in this channel-group, multicast address, bandwidth demands etc.), terminal selects to add the television channel of initially watching according to the channel-group information about firms that obtains, and this moment, bearer network equipment ECF/EFF was after receiving user's Join message, trigger network (RACS) beginning reserved resource is finished the reservation of this initial channel resource.The described method of Fig. 6 can provide this scene of live television service.
The above is preferred embodiment of the present invention only, is 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 (25)
1, a kind of system that television services is provided in session initiation protocol SIP network is characterized in that, comprising:
The network TV terminal function is used for initiating the SIP conversation request to the Web TV application server, comprises the SIP unified resource designator URI that indicates channel information in described SIP conversation request;
The Web TV application server is used to resolve described SIP URI obtaining described channel information, and determines the television channel play to the network TV terminal function according to this channel information.
2, the system of television services is provided in the SIP network according to claim 1, it is characterized in that, this system further comprises the television channel identification server of preserving TV unified resource identifier TV URI and SIP URI corresponding relation,
The network TV terminal function is used for sending the SIPURI query requests comprise TV URI to the television channel identification server, and sends the SIP conversation request that includes the SIP URI that the television channel identification server returned to the Web TV application server;
The television channel identification server is used for the corresponding relation according to TV URI and SIP URI, will send to the network TV terminal function corresponding to the SIP URI of this TV URI.
3, the system of television services is provided in the SIP network according to claim 2, it is characterized in that, this system further comprises IP Multimedia System core Core IMS, and Core IMS is used for described SIP conversation request is routed to the Web TV application server from the network TV terminal function.
4, the system of television services is provided in the SIP network according to claim 1, it is characterized in that, this system further comprises Core IMS and television channel identification server, and wherein the television channel identification server is preserved the corresponding relation of TV URI and SIP URI;
The network TV terminal function is used for sending the SIP session to Core IMS and asks clearly, comprises TV URI in described SIP conversation request;
Core IMS is used for sending SIP URI query requests according to the TV URI that is resolved to the television channel identification server, and according to the SIP URI that receives described SIP conversation request is routed to the Web TV application server;
The television channel identification server is used for the corresponding relation according to TV URI and SIP URI, will send to Core IMS corresponding to the SIP URI of TV URI.
5, according to the system that television services is provided in each described SIP network among the claim 1-4, it is characterized in that described SIP network comprises one of following network: next generation network NGN, IMS network or based on the IPTV network of IMS.
6, the method for television services is provided in a kind of SIP network, it is characterized in that this method comprises:
The Web TV application server receives the SIP conversation request of being initiated by the network TV terminal function, comprises the SIP URI that indicates channel information in described SIP conversation request;
The described SIP URI of Web TV application server parses to be obtaining described channel information, and determines the television channel play to the network TV terminal function according to this channel information.
7, the method for television services is provided in the SIP network according to claim 6, it is characterized in that, comprise the SIP URI that indicates default channel in the described SIP conversation request;
Described Web TV application server is determined described default channel according to local policy and/or user data.
8, the method for television services is provided in the SIP network according to claim 7, it is characterized in that, definite mode of described default channel comprises:
Adopting the default or main channel of Web TV application server is described default channel; Or
The channel that adopts the user last time to watch is default channel; Or
The startup channel that adopts the user to be provided with is default channel.
9, the method for television services is provided in the SIP network according to claim 7, it is characterized in that this method further comprises:
The Web TV application server utilizes sip response message to return definite default channel information to the network TV terminal function; Perhaps
The Web TV application server utilizes sip response message to return definite default channel information and channel-group sign to the network TV terminal function; Perhaps
The Web TV application server utilizes sip response message to return definite default channel information, channel-group sign and channel-group information about firms to the network TV terminal function.
10, the method for television services is provided in the SIP network according to claim 6, it is characterized in that, comprise the SIP URI of specific channel of indication or channel-group in the described SIP conversation request; Described Web TV application server is resolved channel information according to local policy and/or service logic, determines specific channel or channel-group that the network TV terminal function is asked.
11, the method for television services is provided in the SIP network according to claim 6, it is characterized in that, comprise the SIP URI that indicates specific channel-group in the described SIP conversation request; Described Web TV application server is resolved channel information according to local policy and/or service logic, determines the specific channel-group that the network TV terminal function is asked, and adopts in the following manner any to determine initial channel:
Adopting the interior default channel of channel-group of Web TV application server setting is initial channel; Or
The interior channel of this channel-group that adopts the user last time to watch is an initial channel; Or
The interior default channel of the channel-group that adopts the user to be provided with is an initial channel
12, the method for television services is provided in the SIP network according to claim 10, it is characterized in that, described SIP URI comprises:
Specific channel number and/or specific channel designation; Or
Specific channel number and/or specific channel designation, or and the channel-group information that comprises this specific channel ownership;
Specific channel group name claims and/or specific channel group #.
13, the method for television services is provided in the SIP network according to claim 10, it is characterized in that this method further comprises:
The Web TV application server utilizes sip response message to return definite specific channel information to the network TV terminal function; Perhaps
The Web TV application server utilizes sip response message to return definite specific channel information and channel-group sign to the network TV terminal function; Perhaps
The Web TV application server utilizes sip response message to return definite specific channel information, channel-group sign and channel-group information about firms to the network TV terminal function; Perhaps
The Web TV application server utilizes sip response message to return channel-group sign and channel-group information about firms to the network TV terminal function.
14, the method for television services is provided in a kind of SIP network, it is characterized in that this method comprises:
The television channel identification server receives the SIP URI query requests that comprises TV URI from the network TV terminal function, the television channel identification server is according to the corresponding relation of TV URI and SIP URI, to send to the network TV terminal function corresponding to the SIP URI of TVURI, wherein in described SIP URI, comprise channel information;
The Web TV application server receives the SIP conversation request of being initiated by the network TV terminal function, comprises described SIP URI in described SIP conversation request;
The described SIP URI of Web TV application server parses to be obtaining described channel information, and determines the television channel play to the network TV terminal function according to this channel information.
15, the method for television services is provided in the SIP network according to claim 14, it is characterized in that, in SIP URI, carry described channel information by spreading parameter or extending user user type.
16, according to the method that television services is provided in claim 14 or the 15 described SIP networks, it is characterized in that described channel information comprises: at least one combination in any among member's channel information of the title of channel and/or channel-group, channel number, channel type, channel-group or the service provider.
17, the method for television services is provided in a kind of SIP network, it is characterized in that this method comprises:
Core IMS receives the SIP conversation request that is sent by the network TV terminal function, comprises TV URI in described SIP conversation request; Core IMS sends SIP URI query requests according to the TV URI that is resolved to the television channel identification server;
The television channel identification server will send to Core IMS corresponding to the SIP URI of TV URI according to the corresponding relation of TV URI and SIP URI, comprise channel information in described SIP URI;
Core IMS is routed to the Web TV application server according to the SIP URI that receives with described SIP conversation request, the described SIP URI of Web TV application server parses to be obtaining described channel information, and determines the television channel play to the network TV terminal function according to this channel information.
18, the method for television services is provided in the SIP network according to claim 17, it is characterized in that, comprise the SIP URI that indicates default channel in the described SIP conversation request;
Described Web TV application server is determined described default channel according to local policy and/or user data.
19, the method for television services is provided in the SIP network according to claim 17, it is characterized in that, definite mode of described default channel comprises:
Adopting the default or main channel of Web TV application server is default channel; Or
The channel that adopts the user last time to watch is default channel; Or
The startup channel that adopts the user to be provided with is default channel.
20, according to the method that television services is provided in claim 17, the 18 or 19 described SIP networks, it is characterized in that, comprise the SIP URI that indicates specific channel in the described SIP conversation request; Described SIP URI comprises:
Specific channel number and/or specific channel designation; Or
Specific channel number and/or specific channel designation, and the channel-group information that comprises this specific channel ownership; Or
Specific channel group name claims and/or specific channel group #.
21, a kind of network TV terminal function is characterized in that, comprises that the SIP conversation request is initiated the unit and TV information represents the unit, wherein:
The SIP conversation request is initiated the unit, is used for initiating the SIP conversation request to the Web TV application server, comprises the SIP URI that indicates channel information in described SIP conversation request;
TV information represents the unit, is used to receive the television channel information of being determined according to this channel information by the Web TV application server, and represents described television channel information.
22, a kind of network TV terminal function is characterized in that, comprises that the SIP conversation request is initiated the unit and TV information represents the unit, wherein:
The SIP conversation request is initiated the unit, be used for sending the SIP URI query requests that comprises TV URI to the television channel identification server, the SIP URI that reception is returned by the television channel identification server corresponding to this TV URI, and initiate to comprise the SIP conversation request of SIP URI to the Web TV application server, in described SIP URI, comprise channel information;
TV information represents the unit, is used to receive the television channel information of being determined according to this channel information by the Web TV application server, and represents described television channel information.
23, a kind of Web TV application server is characterized in that, comprises that channel information acquiring unit and TV information provide the unit, wherein:
The channel information acquiring unit is used to receive the SIP conversation request, and resolves described SIP URI to obtain described channel information, wherein at the described SIP URI that indicates channel information that comprises in the SIP conversation request;
TV information provides the unit, is used for according to the definite television channel of playing to the network TV terminal function of this channel information, and sends described television channel information to described network TV terminal function.
24, a kind of television channel identification server is characterized in that, comprises corresponding relation preservation unit and SIPURI query unit, wherein
Corresponding relation is preserved the unit, preserves the corresponding relation of TV URI and SIP URI;
SIP URI query unit, be used to receive the SIP URI query requests that comprises TV URI that network TV terminal function or Core IMS are sent, and, will send to described network TV terminal function or Core IMS corresponding to the SIP URI of this TV URI according to the corresponding relation of TV URI and SIP URI.
25, a kind of Core IMS is characterized in that, comprises TV URI resolution unit and routing unit, wherein
TV URI resolution unit is used for receiving the SIP conversation request that includes TV URI from the network TV terminal function, parses TV URI from described SIP conversation request, and sends SIP URI query requests to the television channel identification server;
Routing unit is used for described SIP conversation request is routed to the Web TV application server, wherein comprises the SIP URI that is returned in response to described SIP URI query requests by the television channel identification server in described SIP conversation request.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101540280A CN101360095A (en) | 2007-08-03 | 2007-09-07 | Method, apparatus and system providing television service in session initial protocol network |
| PCT/CN2007/070999 WO2008052484A1 (en) | 2006-11-02 | 2007-10-31 | Method, system and apparatus of iptv service controlling |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710138554.8 | 2007-08-03 | ||
| CN200710138554 | 2007-08-03 | ||
| CNA2007101540280A CN101360095A (en) | 2007-08-03 | 2007-09-07 | Method, apparatus and system providing television service in session initial protocol network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101360095A true CN101360095A (en) | 2009-02-04 |
Family
ID=40332435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101540280A Pending CN101360095A (en) | 2006-11-02 | 2007-09-07 | Method, apparatus and system providing television service in session initial protocol network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101360095A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895811A (en) * | 2010-04-23 | 2010-11-24 | 中兴通讯股份有限公司 | Mobile terminal and method and system for controlling mobile terminal television service |
| CN102256181A (en) * | 2010-05-17 | 2011-11-23 | 华为技术有限公司 | Method for accessing internet content and related device |
| CN111225251A (en) * | 2018-11-27 | 2020-06-02 | 深圳Tcl数字技术有限公司 | Method, storage medium and equipment for obtaining EPG (electronic program guide) by self-adaptive matching of time |
-
2007
- 2007-09-07 CN CNA2007101540280A patent/CN101360095A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895811A (en) * | 2010-04-23 | 2010-11-24 | 中兴通讯股份有限公司 | Mobile terminal and method and system for controlling mobile terminal television service |
| WO2011130979A1 (en) * | 2010-04-23 | 2011-10-27 | 中兴通讯股份有限公司 | Mobile terminal, method and system for controlling mobile terminal television service |
| CN102256181A (en) * | 2010-05-17 | 2011-11-23 | 华为技术有限公司 | Method for accessing internet content and related device |
| WO2011143993A1 (en) * | 2010-05-17 | 2011-11-24 | 华为技术有限公司 | Method and associated device for accessing internet contents |
| CN102256181B (en) * | 2010-05-17 | 2013-06-05 | 华为技术有限公司 | Method for accessing internet content and related device |
| CN111225251A (en) * | 2018-11-27 | 2020-06-02 | 深圳Tcl数字技术有限公司 | Method, storage medium and equipment for obtaining EPG (electronic program guide) by self-adaptive matching of time |
| CN111225251B (en) * | 2018-11-27 | 2022-07-08 | 深圳Tcl数字技术有限公司 | Method, storage medium and equipment for obtaining EPG (electronic program guide) by self-adaptive matching of time |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10397644B2 (en) | Switching between delivery methods in an IPTV communication network | |
| EP1988666B1 (en) | A streaming media network system, a realization method and a enable entity of streaming media service | |
| CN101326826B (en) | Method, system and apparatus for controlling service of network TV | |
| EP2241078B1 (en) | Method and internet protocol television (iptv) content manager server for iptv servicing | |
| CN101547189B (en) | Method, system and device for establishing CoD service | |
| US8046479B2 (en) | Media channel management | |
| US8307049B2 (en) | Method and device for obtaining media description information of IPTV services | |
| CN101197832B (en) | Method, system and device for implementing IPTV service | |
| RU2480936C2 (en) | Method, apparatus and system for ip television based information distribution | |
| KR101433225B1 (en) | System for accessing an ip television service in an ims architecture network | |
| EP2387844B1 (en) | Managing associated sessions in a network | |
| CN101674323A (en) | Push service negotiation method and device, and push service system | |
| KR100891745B1 (en) | Method and apparatus of providing video on demand service based on ip multimedia subsystem | |
| CN101163279A (en) | Method, system and equipment of implementing fellow television service | |
| US20110167441A1 (en) | An interactive iptv system and a content pushing method thereof | |
| CN101605142A (en) | The implementation method of session management, device, system and terminal | |
| CN101415250B (en) | Method, system and entity for establishing session in IP internet television system | |
| CN101360095A (en) | Method, apparatus and system providing television service in session initial protocol network | |
| CN101883333A (en) | Method, system and device for acquiring real-time media play information of designated user | |
| CN101459525B (en) | Method, system and device for medium control | |
| EP2104298A1 (en) | Method of processing data in an internet protocol television system | |
| WO2008052484A1 (en) | Method, system and apparatus of iptv service controlling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090204 |