CN101547402B - Method and device for establishing IPTV multicast service - Google Patents
Method and device for establishing IPTV multicast service Download PDFInfo
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- CN101547402B CN101547402B CN2008100903563A CN200810090356A CN101547402B CN 101547402 B CN101547402 B CN 101547402B CN 2008100903563 A CN2008100903563 A CN 2008100903563A CN 200810090356 A CN200810090356 A CN 200810090356A CN 101547402 B CN101547402 B CN 101547402B
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Abstract
The embodiment of the invention discloses a method and a device for establishing an IPTV multicast service, wherein the method comprises the following steps that: user equipment initiates a session establishment process; and the user equipment initiates a request for adding the multi-cast service to a BM-SC after receiving a response that a session is established successfully. In the embodiment of the invention, on the basis that an IMS provides an IPTV service based on the original PSS and MBMS and the authority of a roaming subscriber is processed flexibly in right limit, the successful application of the IPTV multicast service in mobile network is achieved, and then the abundant service ability of the IMS is used sufficiently to provide better service experience for users.
Description
Technical field
The present invention relates to communication technical field, relate in particular to the method and apparatus of a kind of IPTV of foundation (Internet ProtocolTelevision, IPTV) multicast service.
Background technology
IPTV is a kind of broadband cabled television network that utilizes, and integrates multiple technologies such as the Internet, multimedia, communication, and the technology of the multiple interactive services that comprises DTV is provided to the domestic consumer.The user can use PC (personal computer) or network machine top box+general television set mode to enjoy the IPTV business at home, and it is professional also can to enjoy IPTV through portable terminal.IPTV uses TCP/IP (TransmissionControl Protocol/Internet Protocol; Transmission control protocol/IP(Internet Protocol)) carries out clean culture, broadcasting or group broadcasting video frequency business as bearing protocol; Effectively television network, three fields of telephone network and the Internet are combined; Be the most representative business of the integration of three networks, just receiving the increasing concern of industry.
IMS (IP Multimedia Subsystem, IP Multimedia System) is an IP-based standards system that is independent of access technology, with existing voice and data network can intercommunication.No matter be fixed network users; PSTN (Public Land Mobile Network, public land mobile net network, ISDN (Integrated Service Digital Network, integrated services digital network), internet etc. for example; Or mobile subscriber; For example GSM (Global System for Mobile Communications, global system for mobile communications), CDMA (Code Division Multiple Access, code division multiple access inserts) etc.; IMS makes various types of clients can set up the IP communication of equity, and can obtain needed service quality.Except that session management, IMS also relates to the service of completion provides necessary function, for example registration, safety, charging, carrying control, roaming etc.
At 3GPP (3rd Generation Partnership Project; Third generation partner program) in; Realized (Packet-switched Streaming Service based on PSS; Packet switch stream service) unicast stream media services, and based on the multicast stream media services of MBMS (Multimedia Broadcast/Multicast Service, multimedia broadcast multi-broadcasting business).Yet, the IPTV based on IMS is not studied in the prior art, that is, how do not consider based on IMS, consider that original PSS, MBMS business provide IPTV professional, make full use of the abundant professional ability of IMS, to the user better business experience is provided.
Summary of the invention
The embodiment of the invention provides a kind of method and apparatus of the IPTV of foundation multicast service, realizes the IPTV multicast service that the mobile subscriber visits different regions.
The embodiment of the invention provides a kind of method of the IPTV of foundation multicast service, may further comprise the steps:
The subscriber equipment initiation session is set up process;
Said subscriber equipment is received after success response is set up in session and is initiated to add the multicast service request to broadcast multicast service center BM-SC;
Said BM-SC carries out authentication to the user, and session is handled related with the authorization check that joins request to multicast service that carries out at BM-SC.
The embodiment of the invention provides a kind of broadcast multicast service center, comprising:
Add multicast service request receiving element, be used to receive the adding multicast service request that said subscriber equipment sends;
Authenticating unit is used to obtain authentication information, and according to IPTV service authentication information said subscriber equipment is carried out service authentication.
The business data transmission unit is used for after authentication is passed through, to the user device transmissions business datum;
The authorization check associative cell is used for session is handled related with the authorization check that joins request to multicast service that carries out in broadcast multicast service center; IMPU, IMSI, user's IPTV service authentication information is carried out association.
The embodiment of the invention provides a kind of operation controlling entity, comprising:
The request receiving element is set up in session, is used to receive said session and sets up request;
Request-response unit is set up in session, is used to return session and sets up request responding, and the response message that wherein carries APN APN and multicast address information returns to said subscriber equipment through said IMS Core; Or obtain APN and multicast address information, and return said subscriber equipment through visit ground operation controlling entity;
IPTV service authentication information issues the unit; Be used for IPTV service authentication information with this locality storage; Or obtain IPTV service authentication information from HSS and be handed down to broadcast multicast service center; Said broadcast multicast service center BM-SC carries out authentication to the user, and session is handled related with the authorization check that joins request to multicast service that carries out at said BM-SC.
The embodiment of the invention provides a kind of subscriber equipment, comprising:
Request transmitting unit is set up in session, is used for initiation session and sets up request, and described request is carried service identification;
Add the multicast service unit; Be used for sending the request of adding BroadCast MultiCast Service to said broadcast multicast service center; Said broadcast multicast service center BM-SC carries out authentication to the user, and session is handled related with the authorization check that joins request to multicast service that carries out at said BM-SC.
In the embodiments of the invention; On original PSS, MBMS service basic, provide IPTV professional based on IMS; User to roaming carries out authority processing flexibly; Realized the successful utilization of multicast service in mobile network of IPTV, and then made full use of the abundant professional ability of IMS, better business experience is provided to the user.
Description of drawings
Fig. 1 a is an embodiment of the invention overview flow chart;
Fig. 1 b is that visit ownership place multicast service is set up flow chart in the embodiment of the invention one;
Fig. 2 is that visit visit ground multicast service is set up flow chart in the embodiment of the invention two;
Fig. 3 is that the user sets up flow chart from visiting accessing visit ground multicast service in the embodiment of the invention three;
Fig. 4 is that the user is in visit accessing third party and third party and has the SCF multicast service to set up flow chart in the embodiment of the invention four;
Fig. 5 be in the embodiment of the invention five user from ownership place visit visit ground multicast service set up flow chart;
Fig. 6 is multicasted to multicast channel switching flow figure in the embodiment of the invention six;
Fig. 7 is multicasted to unicast channel switching flow figure in the embodiment of the invention seven;
Fig. 8 is the switching flow figure that unicasts to multicast in the embodiment of the invention eight;
Fig. 9 is session release flow figure in the embodiment of the invention nine;
Figure 10 is the system construction drawing of a kind of IPTV of foundation multicast service of the embodiment of the invention;
Figure 11 is a kind of broadcast multicast service center figure of the embodiment of the invention;
Figure 12 is a kind of operation controlling entity structure chart of the embodiment of the invention;
Figure 13 is a kind of user device architecture figure of the embodiment of the invention.
Embodiment
The embodiment of the invention is mainly based on the solution of the IPTV framework of IMS/PSS/MBMS.
The embodiment of the invention has proposed a kind of method of the IPTV of foundation multicast service, shown in Fig. 1 a, may further comprise the steps:
Step 10, the subscriber equipment initiation session is set up process.
Step 20, said subscriber equipment are received after success response is set up in session and are initiated to add the multicast service request to broadcast multicast service center BM-SC.
In the embodiment of the invention one, visit ownership place multicast service is set up process (ownership place control).The scene of present embodiment is a user capture ownership place multicast service, and service logic is controlled by ownership place, comprises that the user is in visit ground or two kinds of situation of ownership place.The management of professional deployment, the preparation of multicast source, multicast address and channel relation is responsible for by the ownership place service provider.User's IMSI (International MobileSubscriber Identification Number; International mobile subscriber identity) and the corresponding relation of user with multicast address tabulation that authority watches in HSS (Home Subscriber Server, home signature user server) similar solid, store.
Embodiment one concrete visit ownership place multicast service is set up process shown in Fig. 1 b, may further comprise the steps:
Step 101; UE (User Equipment; Subscriber equipment) obtains ownership place EPG (ElectronicProgram Guide in the service discovering process from the network element (all being SSF) of programs stored information among all embodiment of the present invention; Electric program guide), possibly comprise APN (Access Point Name, APN), multicast address, bandwidth information etc.
Step 102, the UE initiation session is set up request, comprising:
UE sets up request Invite to IMS Core (IMS core) initiation session, wherein carries service identification, channel information, IMS user identity, SDP (Session Description Protocol, Session Description Protocol) Offer, terminal capability etc.; Wherein, terminal capability possibly carry in SDP.
After IMS Core receives Invite, be routed to operation controlling entity (like SCF) according to service identification among the Invite or channel information.Wherein, Be routed to SCF dual mode is arranged: take PSI (PublicService Identities according to channel information; Public service identity) routing mode, or take IFC (InitialFilter Criteria, initial filter standard or norm) triggering mode according to service identification.
Step 103, it is local service that SCF judges, needs the current session of termination; Obtain user's IPTVProfile data (can be stored on the SCF, also can from HSS, directly obtain) by SCF, and through relevant authentication, the channel scope check of IPTV business to the user.
Step 104, SCF returns session and sets up successfully, comprising:
SCF returns session to IMS Core and sets up successful 200OK, comprising User IP TV service authority information.Can directly be IMSI, IMPU (IP Multimedia Public Identity, IP multimedia public identity) and corresponding IPTV authentication information also can be IMPU and corresponding IPTV authentication information.If the latter, and the mapping relations of IMSI and IMPU exist on the SCF, need these mapping relations be issued together, otherwise need on BM-SC, dispose the corresponding relation of IMSI and IMPU.Also can in the 200OK response of returning, add a Token, be used for distinguishing the corresponding different I MPU of same IMSI.
IMS Core returns session to UE and sets up successful 200OK.
Step 105, through the authority issuing message, process is issued BM-SC with the interface of BM-SC to IMS Core with User IP TV authentication information.
Step 106, UE is receiving that session sets up successfully the back and start a timer, waiting timer is overtime.
Step 107, behind the timer expiry, UE sends multicast service to BM-SC and joins request.If in receiving 200OK, contain Token, during joining request, this multicast service need carry this Token.
Step 108, the IMSI of the last inspection of BM-SC UE and the corresponding relation of its IPTV authority in case of necessity, need to use IMSI and Token to confirm the authentication information of IMPU together, carry out authentication.
Step 109, after the authentication success, multicast service is set up successfully, the beginning transfer of data.
In the embodiments of the invention one; Except on HSS or SCF similar solid, disposing the method for IMSI, IMPU and corresponding IPTV service authority thereof; Can also go up directly configuration IMSI and corresponding IPTV service authority at BM-SC (broadcast multicast service center); Need have the mapping relations of IMSI and IMPU this moment on HSS and SCF similar solid, also can directly on BM-SC, dispose the corresponding relation of IMSI, IMPU and authority.
In embodiments of the invention one step 104, taked on the SCF/HSS similar solid, to dispose IMSI, the method for IMPU and corresponding IPTV service authority thereof when session is set up, is set up the method that returns to IMS Core in the process by the SCF/HSS similar solid in session.After can certainly receiving that multicast service joins request through BM-SC, directly from and the SCF/HSS similar solid between interface obtain IPTV service authority information; Perhaps the SCF/HSS similar solid is directly given BM-SC with IPTV service authority information PUSH, needs this moment the SCF/HSS similar solid can be addressed to BM-SC, and has interface between the two; Perhaps when BM-SC receives that multicast service joins request, in real time from SCF/HSS similar solid PULL IPTV service authority information.
Obtained APN address and multicast address information in embodiments of the invention one step 101 in the service discovering process, can certainly set up process, when SCF returns 200OK, obtained APN address and multicast address information through session.
Embodiments of the invention one can cause BM-SC when receiving that user's multicast service joins request owing to there is not strict sequential relationship between step 105 and the step 107, might also not obtain User IP TV service authority information.Therefore after UE receives that session is set up successfully, the multicast service of redispatching of waiting for a period of time joins request; Perhaps adopt IMS Core elder generation sending permission issuing message, and after receiving the response of BM-SC, the session of redispatching is set up successfully and is solved sequence problem to UE; Perhaps, after BM-SC receives that the multicast service of UE joins request, do not handle at once, wait for a period of time, after receiving User IP TV service authority information, just carry out authentication; Perhaps, when UE finds that the adding multicast service is unsuccessful, resend multicast service and join request.
In the embodiments of the invention one, in step 104, in 105,107 and 108, it is related with the authorization check that joins request to multicast service that carries out at BM-SC to use Token that session is handled, and has realized user's the many session abilities of many IMPU.
In the embodiment of the invention one, only provided the scene that user terminal is in ownership place, the user is in the situation of visit accessing ownership place, except session set up request need from visit route, other are similar.
In the embodiments of the invention one; User capture ownership place multicast service, service logic is controlled by ownership place, and user's CAMEL-Subscription-Information is stored on the ownership place SCF/HSS similar solid; Through in setting up conversation procedure, user's IPTV service authority being issued; Whether can use this IPTV business to carry out authentication according to this IPTV service authority information to the user by BM-SC, after the authentication success, the transfer of data of beginning multicast service.Thereby the value-added service of multiplexing IMS and personalized characteristics in the IPTV business.Realized the successful utilization of multicast service in mobile network of IPTV, and then made full use of the abundant professional ability of IMS, better business experience is provided to the user.
In the embodiment of the invention two, visit visit ground multicast service is set up process, but does not visit the ground operation controlling entity.Wherein, the IMSI of UE, IMPU and user's tool IPTV service authority are stored in SCF.
It is as shown in Figure 2 that the embodiment of the invention two visit visit ground multicast services are set up process, may further comprise the steps:
Step 201, UE obtains visit ground EPG in the service discovering process, possibly comprise APN, multicast address, bandwidth information etc.
Step 202, the UE initiation session is set up request, comprising:
UE sends session to IMS Core and sets up request Invite, wherein carries service identification, channel information, IMS user identity, SDP Offer, terminal capability etc.; Wherein, terminal capability possibly carry in SDP.
After IMS Core receives Invite, be routed to SCF according to service identification among the Invite or channel information.Be routed to SCF dual mode is arranged: take PSI to be routed to SCF according to channel information, or take IFC to be triggered to SCF according to service identification.
Step 203, SCF judges it is not local service, but need to handle should request (as, do not have the situation of V-SCF on visit ground), carry out related service and handle, through to the professional relevant authentication of user's IPTV, channel scope check.
Step 204, SCF through and BM-SC between interface, directly PUSH customer service authority to visit ground BM-SC; Also possibility PUSH's is the mapping relations of IMSI and IMPU.
Step 205, SCF returns session and sets up successfully, comprising:
SCF returns session to IMS Core and sets up successful 200OK.
IMS Core returns session to UE and sets up successful 200OK.
Step 206, UE confirms BM-SC through the APN address, the multicast address that in step 201, obtain, initiates to add the multicast service request to BM-SC.
Step 207, visit ground BM-SC carries out authentication according to IPTV service authentication information and the non-local user's authorization policy that disposes own that step 204 obtains to the user.If step 204 issues the just IMSI that gets off and the mapping relations of IMPU, the IMSI during BM-SC joins request according to multicast finds corresponding IMPU through mapping relations, thereby determines whether be the local user.If there are not this mapping relations, need BM-SC to determine whether to be the local user according to IMSI.If there is not authentication information, to non-local user, visit ground BM-SC can adopt unified authentication policy.
If there is not the step 204BM-SC can be from PULL User IP TV service authentication information on the SCF/HSS similar solid yet.
Step 208, authentication success back multicast service is set up the beginning transfer of data.
In the embodiment of the invention two; User IP TV service authentication information exists on ownership HSS/SCF or the similar functions entity; If there are not the cooperative relationship closely that is coupled in visit ground and ownership place; These IPTV service authentication information are set up in the process and possibly do not played a decisive role in business, and BM-SC can carry out unified authentication process to non-local user according to local policy.。
In the embodiment of the invention two, can the open unified channel authority of non-local user not done accurate control to non-local user on the visit ground BM-SC, visit ground BM-SC can check IMSI or IMPU.
In the embodiment of the invention two steps 204, require ownership SCF can be addressed to visit ground BM-SC, when perhaps adopting the PULL mode, need BM-SC can be addressed to similar solid such as ownership SCF/HSS.
In the embodiment of the invention two, only provided under the prerequisite that does not have visit ground SCF/HSS similar solid, the user is in ownership place visit visit ground situation.Under identical prerequisite, the user is in the scene on visit accessing visit ground, and the user is in visit accessing third party business scenario, and process step is similar.Common ground is professional by ownership SCF control.
In the embodiments of the invention two; User capture visit ground multicast service, and do not visit ground SCF/HSS similar solid, user's CAMEL-Subscription-Information is stored on the ownership place SCF/HSS similar solid; Through in setting up conversation procedure, user's IPTV service authority being issued to visit ground BM-SC; Whether can use this IPTV business to carry out authentication according to this IPTV service authority information to the user by BM-SC, after the authentication success, the transfer of data of beginning multicast service.Based on the strategy on visit ground, can be to adopting open limited channel authority based on IMPU or all visitor of IMSI.Under user ascription area and visit ground close coupling situation, use the authentication of ownership place, realized user's individualized experience, under the loose coupling situation, use and visit the unified authentication mode in ground.Thereby can carry out authority processing flexibly to the user of roaming, realize the successful utilization of multicast service in mobile network of IPTV.
In the embodiment of the invention three, the user visits the ground multicast service from the visit accessing and sets up process, and visit ground SCF/HSS similar solid is arranged.The IMSI of UE and user have the corresponding relation of the multicast address tabulation that authority watches and in HSS/ ownership SCF, store.The idiographic flow of the embodiment of the invention three is as shown in Figure 3, may further comprise the steps:
Step 301, UE obtains visit ground EPG from SSF (service selection entity) in the service discovering process, comprise information such as APN, multicast address.
Step 302, UE sends session and sets up request, comprising:
UE sets up request Invite to visit ground IMS Core initiation session, wherein carries service identification, channel information, IMS user identity, SDP Offer, terminal capability etc.; Wherein, terminal capability possibly carry in SDP.
After visit ground IMS Core receives Invite, be forwarded to ownership place IMS Core.
After ownership place IMS Core receives Invite, be routed to ownership place SCF according to service identification among the Invite or channel information.Wherein, being routed to ownership place SCF has dual mode: take PSI to be routed to ownership place SCF according to channel information, or take IFC to be triggered to ownership place SCF according to service identification.
Step 303, it is not local service that ownership place SCF judges, and this asks visit ground SCF to need route, and whether the inspection user has roaming authority.
Step 304, ownership place SCF gives visit ground SCF with the session request of setting up through ownership place IMS Core route, and the mode that message arrives visit ground SCF includes but not limited to the PSI routing mode.
Step 305, visit ground SCF handles should request, carries out related service and handles, and through to the professional relevant authentication of user's IPTV, the transmission business is set up success response and is given ownership place SCF.
Step 306, ownership place SCF returns session and sets up successfully, comprising:
Ownership SCF returns session and sets up successful 200OK to ownership place IMS Core, wherein possibly comprise APN, multicast address, and User IP TV authority information etc.Because APN and multicast address also can return to UE in this step, so step 301 li EPG can not comprise these information.
Ownership place IMS Core transmits session and sets up IMS Core with successfully giving visit.
Visit ground IMC Core receives that session sets up successfully, sends to UE.
Step 307, UE sends multicast service and joins request to BM-SC.
Step 308, BM-SC carries out authentication to the user, the authentication success.
Step 309, multicast service is set up, the beginning transfer of data.
In the embodiment of the invention three, visit ground BM-SC has disposed the IPTV service authority to non-local user.Also can pass through in session by the SCF delivery method.Perhaps receiving that by BM-SC when adding the multicast service request, directly the mode from SCF PULL obtains.
In the embodiment of the invention three, only provided visit ground and had visit ground SCF, the user is in the professional situation in visit accessing visit ground.In fact, the user is in the scene that visit accessing third party and third party has SCF, and process step is similarly, the embodiment of the invention four as shown in Figure 4, and common ground is that the SCF on visit ground and the SCF of ownership place provide professional control logic jointly.
In the embodiments of the invention three and four; The user is multicast service from visit accessing visit ground; And there is visit ground SCF/HSS similar solid,, whether can uses this IPTV business to carry out authentication according to this IPTV service authority information to the user by BM-SC through configure user IPTV service authority information on BM-SC; After the authentication success, the transfer of data of beginning multicast service.User to roaming carries out simple unified authority processing.Also can use user's subscription data the user to be carried out authentication, the abilities such as personalization of multiplexing IMS in the IPTV business through dynamically obtaining the method for User IP TV authority.Realized the successful utilization of multicast service in mobile network of IPTV, and then made full use of the abundant professional ability of IMS, better business experience is provided to the user.
In the embodiment of the invention five, the user from ownership place visit visit ground multicast service set up process, the corresponding relation that the IMSI of UE and user have a multicast address tabulation that authority watches belongs among the SCF at HSS/ to be stored.The embodiment of the invention five idiographic flows are as shown in Figure 5, may further comprise the steps:
Step 501, UE obtains visit ground EPG in the service discovering process, possibly comprise APN, multicast address, bandwidth information etc.These information also can be set up the successfully corresponding UE of returning to through session.
Step 502, the UE initiation session is set up request, comprising:
UE initiates Invite to ownership place IMS Core, wherein carries service identification, channel information, IMS user identity, SDP Offer, terminal capability etc.; Wherein, terminal capability possibly carry in SDP.
After ownership place IMS Core receives Invite, be routed to ownership place SCF according to service identification among the Invite or channel information.Wherein, being routed to ownership place SCF has dual mode: take PSI to be routed to ownership place SCF according to channel information, or take the IFC triggering to be routed to ownership place SCF according to service identification.
Step 503, it is not local service that ownership place SCF judges, and this asks visit ground SCF to need route, and whether the inspection user has roaming authority.
Step 504, ownership place SCF sets up the request route with session and gives visit ground SCF, and the mode that message arrives visit ground SCF includes but not limited to the PSI routing mode.
Step 505, visit ground SCF returns session to ownership place SCF and sets up successful 200OK.
Step 506, ownership place SCF returns session to ownership place IMS Core and sets up successful 200OK, and ownership place IMC Core sends session to UE and sets up successful 200OK.
Step 507, UE sends multicast service to visit ground BM-SC and joins request.
Step 508, BM-SC carries out the IPTV service authentication to the user, the authentication success.
Step 509, multicast service is set up, the beginning transfer of data.
In the embodiments of the invention five; The user visits the ground multicast service from the ownership place visit and sets up process; And exist and visit the ground operation controlling entity, issue, whether can use this IPTV business to carry out authentication according to this IPTV service authority information to the user by BM-SC through the IPTV service authority that directly disposes the non-attribution user on visit ground; After the authentication success, the transfer of data of beginning multicast service.User in roaming is carried out simple unified authority handle, also can obtain user's subscription data from ownership place, and then make full use of the abundant professional ability of IMS, better business experience is provided to the user through dynamically obtaining service authority ground method.
In the embodiment of the invention six, multicast service is set up successfully, during business is being carried out, is multicasted to multicast channel handoff procedure.The process that reports comprising switching result; Detailed process is as shown in Figure 6, may further comprise the steps:
Step 601, the user initiates the channel handover operation, and UE sends the message of leaving old multi-broadcast group to BM-SC.
Step 602, UE initiates to add multi-broadcast group message to BM-SC, carries the new channel sign in this message.
Step 603, BM-SC carries out the IPTV service authentication according to the IPTV service authentication information that the user obtains to the user when setting up old multicast service, the authentication success.
Step 604, BM-SC opens switching result and reports timer, and plays new business to the user.
Step 605, timer expiry, BM-SC through and the HSS/SCF similar solid between interface send switching result and give the HSS/SCF similar solid.
Step 606, the HSS/SCF similar solid is returned response to BM-SC, and multicast service is to the handover success of multicast service.
In the embodiment of the invention six, channel switches through initiating to add the multicast service request again to be realized, also possibly realize through the session change.
In the embodiment of the invention six, channel switching result report be by BM-SC through with the interface of SCF entity on offer realization.This is corresponding with the process of obtaining User IP TV authentication information, needs to have direct interface between BM-SC and the HSS/SCF entity.If use the different methods of obtaining authority, the channel switching result report flow maybe be different.Channel switching report flow and BM-SC obtain User IP TV authority and can adopt same interface.
In the embodiment of the invention six; Except carrying out channel switching result, BM-SC reports; Can also by UE through and IMS Core between interface report: UE opens time-delay and reports timer, behind timer expiry, initiates the process that reports of channel switching result through the SIP signaling; Perhaps, the interface through BM-SC and IMSCore reports: BM-SC opens time-delay and reports timer, behind timer expiry, through initiating the process that reports of channel switching result with the interface of IMSCore.
In the embodiment of the invention six; Can be under the situation that keeps session the user, the fast channel that is multicasted to multicast switches, and behind handover success, initiates channel switching result to SCF and reports process; And through timer, the frequent switching of having avoided occurring reports process.
In the embodiment of the invention seven, the multicast channel is as shown in Figure 7 to the unicast channel handoff procedure, may further comprise the steps:
Step 701, multicast service is set up, during multicast service carries out.
Step 702, UE initiates VCR (Video Cassette Recorder, cassette tape formula image record/play machine) operations such as time-out, rewind down, initiates the switching of multicast channel to unicast channel.
UE sends session modification reInvite message to IMS Core; Wherein carry the sign of setting up unicast channel; Also can be with setting up required information of clean culture or RTSP (Real Time Streaming Protocol; Real-time streaming protocol) the required information of control identifies, and also can be with XML (EXtensible Markup Language, extensible markup language) sign;
IMS Core transmits session modification request to SCF.
Step 703 after SCF receives message, is set up the control channel and the media transmission channel of a clean culture according to the sign judgement needs in the message, sets up a unicast session.
Step 704, SCF obtains RTSP control end dot information and clean culture broadcast point information through the foundation of unicast session, comprising:
SCF returns session modification success response 200OK to IMS Core, wherein carries RTSP control end dot information and clean culture broadcast point information;
IMS Core transmits session modification success response 200OK to UE.
Step 705, UE is through unicast path receiving media stream.
Step 706, UE can go up broadcast point to MDF (Media Delivery Functions, distribution of media function) through the control end points and carry out the VCR operation.
In the embodiment of the invention seven, when the user need be multicasted to the channel switching of clean culture, SCF set up clean culture, and the control user switches to clean culture from multicast.
In the embodiment of the invention eight, unicast to the handoff procedure (session change) of multicast, as shown in Figure 8, may further comprise the steps:
Step 801, unicast service is set up, during unicast service carries out.
Step 802, UE initiates the switching of unicast channel to the multicast channel, comprising:
UE sends session modification request reInvite to IMS Core;
IMS Core transmits session modification request to SCF.
Step 803 after SCF receives message, withdraws from original unicast service according to the sign judgement needs in the message.
Step 804, SCF carries out that user data obtains, subscription authentication, channel scope check, judges whether to have the right to add multicast service.
Step 805, SCF returns the session modification success, comprising:
SCF returns session modification success response 200OK to IMS Core.
IMS Core transmits session modification success response 200OK to UE.
Step 806, UE sends multicast service to BM-SC and joins request.
Step 807, BM-SC is according to pre-configured permissions list, inspection user's IPTV service authority, it is identical that the process that BM-SC obtains User IP TV service authentication information and user set up initial multicast service, and authentication is successfully.
Step 808, multicast service is set up, the beginning transfer of data
Step 809, switching result reports process.Report process the same with the multicast channel to the switching result of multicast channel.
In the embodiment of the invention eight, when the user need unicast to the channel switching of multicast, SCF carried out authentication, and the control user switches to multicast from clean culture.
In the embodiment of the invention nine, professional release flow.As shown in Figure 9 in the session release flow:
Step 901, multicast service is set up, the beginning transfer of data.
Step 902, the UE initiation session discharges request, comprising:
UE discharges request BYE to IMS Core initiation session;
IMS Core transmits session to SCF and discharges request BYE.
Step 903, SCF returns session and discharges successfully, comprising:
SCF sends session to IMS Core and discharges success response 200OK, and through the corresponding IPTV service authority of user IMPU being changed to NULL indication last traffic authentication information actual effect;
IMS Core transmits session to UE and discharges success response 200OK.
Step 904, IMS Core lost efficacy through authority issuing message notice BM-SC last traffic authentication information.
Step 905, BM-SC deletes User IP TV service authentication information in real time, thereby initiates multicast service when joining request next user, and BM-SC can use the information of the authentication of new IMPU.
Step 906, UE initiates to withdraw from the multicast service request to BM-SC, finishes current professional.
In the embodiment of the invention nine, IMSI, the IMPU mapping relations, all there are SCF in IMPU and User IP TV authority, if exist on the HSS, need SCF after receiving session foundation request, to obtain these information from HSS.
In the embodiment of the invention nine steps 903; The authority information that is handed down to IMS Core through 200OK is the authority information of IMPU; Rather than the authority information of entire I MSI; Give IMS Core through set up the indication of losing efficacy of the authority of returning user IMPU in the success response in session, by IMS Core with authority lost efficacy indication through and BM-SC between interface be handed down to the method for BM-SC, also can when session discharges, issue by SCF.Similar with the method that obtains User IP TV authority.
In the embodiment of the invention nine, can realize many IMPU (Token), not need to remove in real time authority through the method for setting up in session in the process User IP TV authentication information and session association.
In the embodiment of the invention nine,, avoided IGMP is proposed new requirement, realized many IMPU of user ability through removing User IP TV authority when the each conversation end.
The embodiment of the invention provides a kind of system of the IPTV of foundation multicast service, and is shown in figure 10, comprising: subscriber equipment 100, and be used for initiation session and set up process, initiate to add the multicast service request to broadcast multicast service center receiving after success response is set up in session; Broadcast multicast service center 200 after being used to receive the adding multicast service request of said subscriber equipment transmission, is carried out authentication according to IPTV service authentication information to said subscriber equipment, and authentication success back allows subscriber equipment to add multi-broadcast group, carries out business data transmission; Operation controlling entity 300 is used to receive said session and sets up request, and the user is carried out the subscription authentication of IMS aspect, and the channel scope check carries out service logic control and processing; The response message that carries APN APN and multicast address information is returned to said subscriber equipment through said IMS Core; Or obtain APN and multicast address information, and return said subscriber equipment through visit ground operation controlling entity.
Wherein, broadcast multicast service center 200 is shown in figure 11, comprising: add multicast service request receiving element 210, be used to receive the adding multicast service request that said subscriber equipment sends; Authenticating unit 220 is used to obtain authentication information, and according to IPTV service authentication information said subscriber equipment is carried out service authentication.Business data transmission unit 230 is used for after authentication is passed through, to the user device transmissions business datum.
Broadcast multicast service center 200 also comprises: IPTV service authentication information acquisition unit 240, be used to obtain IPTV service authentication information, and concrete obtain manner comprises: the IPTV service authentication information of direct configure user equipment; Or obtain user's IPTV service authentication information through HSS; Or set up in the process IPTV service authentication information of obtaining the user through signaling in session; Or set up in the process in session and directly to obtain IPTV service authentication information from operation controlling entity.
Broadcast multicast service center 200 also comprises: authorization check associative cell 250 is used for session is handled related with the authorization check that joins request to multicast service that carries out in broadcast multicast service center; And IMPU, IMSI, user's IPTV service authentication information carried out association.
Broadcast multicast service center 200 also comprises: channel switching result reports unit 260, is used for opening time-delay and reports timer, behind timer expiry, through initiating the process that reports of channel switching result with the interface of operation controlling entity; Or open time-delay and report timer, behind timer expiry, through initiating the process that reports of channel switching result with IMS Core.
Wherein, operation controlling entity 300 is shown in figure 12, comprising: request receiving element 310 is set up in session, is used to receive said session and sets up request; Request-response unit 320 is set up in session, is used to return session and sets up request responding, and the response message that wherein carries APN APN and multicast address information returns to said subscriber equipment through said IMS Core; Or obtain APN and multicast address information, and return said subscriber equipment through visit ground operation controlling entity.
Operation controlling entity 300 also comprises: switch unit 330; After being used to receive the handoff request message that is multicasted to clean culture of subscriber equipment initiation; Set up the control channel and the media transmission channel of a clean culture according to the sign judgement needs in the said message, set up a unicast session, through the foundation of unicast session; Obtain corresponding information, return to said subscriber equipment through original route by operation controlling entity.
Operation controlling entity 300 also comprises: judging unit 340, be used to receive the session request of setting up after, judge whether and should handle by this locality; If, the said session that terminates, otherwise; Be routed to visit ground operation controlling entity, make said visit ground operation controlling entity handle said session.
Operation controlling entity 300 also comprises: IPTV service authentication information issues unit 350, is used for the IPTV service authentication information with this locality storage, or obtains IPTV service authentication information from HSS and be handed down to the center.
Operation controlling entity 300 also comprises: channel switching result receiving element 360 is used to receive the switching result that subscriber equipment or broadcast multicast service center report.
Wherein, subscriber equipment 100 is shown in figure 13, comprising: request transmitting unit 110 is set up in session, is used for initiation session and sets up request, and described request is carried service identification; Add multicast service unit 120, be used for sending the request of adding BroadCast MultiCast Service to said broadcast multicast service center.
Subscriber equipment 100 also comprises: information acquisition unit 130 is used for setting up success response from the session that operation controlling entity is sent and obtains APN and multicast address information; Or set up process in session and from the network element of programs stored information, obtain APN and multicast address information before.
Subscriber equipment 100 also comprises: switch unit 140, be used to initiate to be multicasted to the handoff request message of clean culture, and wherein carry the sign of setting up clean culture; And after receiving the unicast info that said operation controlling entity returns, flow through the unicast path receiving media.
Subscriber equipment 100 also comprises: channel switching result reports unit 150, is used for opening time-delay and reports timer, behind timer expiry, initiates the process that reports of channel switching result through the SIP signaling.
In the embodiments of the invention; On original PSS, MBMS service basic, provide IPTV professional through IMS; User in roaming carries out authority processing flexibly; Realized the successful utilization of multicast service in mobile network of IPTV, and then made full use of the abundant professional ability of IMS, better business experience is provided to the user.
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 described method of each embodiment of the present invention.
The present invention is equally applicable to the TISPAN framework, and RACS among the present invention among BM-SC and the TISPAN and EFC/EFF are in reciprocity function.
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 (38)
1. a method of setting up the IPTV multicast service is characterized in that, may further comprise the steps:
The subscriber equipment initiation session is set up process;
Said subscriber equipment is received after success response is set up in session and is initiated to add the multicast service request to broadcast multicast service center BM-SC;
Said BM-SC carries out authentication to the user, and session is handled related with the authorization check that joins request to multicast service that carries out at BM-SC.
2. set up the method for IPTV multicast service according to claim 1, it is characterized in that, said subscriber equipment initiation session is set up process and is specifically comprised:
Subscriber equipment is set up request to IMS Core initiation session, and described request is carried service identification;
Said subscriber equipment ownership place operation controlling entity receives the said session foundation request that said IMS Core transmits.
3. like the said method of setting up the IPTV multicast service of claim 2; It is characterized in that; Said IMSCore is routed to the ownership place operation controlling entity through initial filter standard or norm iFC triggering mode with the said session request of setting up, and triggering rule comprises: service identification or Request URI.
4. like the said method of setting up the IPTV multicast service of claim 2, it is characterized in that said IMSCore is routed to the ownership place operation controlling entity through the PSI mode with the session request of setting up.
5. like the said method of setting up the IPTV multicast service of claim 2, it is characterized in that the said session request of setting up that said subscriber equipment ownership place operation controlling entity receives said IMS Core forwarding comprises afterwards:
Said ownership place operation controlling entity finishes said session, returns session and sets up successfully request, wherein carries APN APN and multicast address information.
6. like the said method of setting up the IPTV multicast service of claim 2, it is characterized in that the said session request of setting up that said subscriber equipment ownership place operation controlling entity receives said IMS Core forwarding also comprises afterwards:
Said ownership place operation controlling entity routes to visit ground operation controlling entity through said IMS Core with the said session request of setting up;
Said ownership place operation controlling entity receives the response message that said visit ground operation controlling entity is returned, and said response message carries APN and multicast address information;
Said ownership place operation controlling entity is returned said response message to said subscriber equipment, wherein carries APN and multicast address information.
7. like the said method of setting up the IPTV multicast service of claim 6, it is characterized in that the said visit ground operation controlling entity that routes to comprises the PSI addressing system.
8. set up the method for IPTV multicast service according to claim 1; It is characterized in that said subscriber equipment is received after success response is set up in session and before broadcast multicast service center BM-SC initiates to add the multicast service request, also comprised: confirm corresponding BM-SC according to APN and multicast address;
Said subscriber equipment is received after success response is set up in session and after broadcast multicast service center BM-SC initiates to add the multicast service request, is also comprised:
Said BM-SC carries out authentication according to said IPTV service authentication information to the user.
9. like the said method of setting up the IPTV multicast service of claim 8, it is characterized in that the acquisition methods of said APN and multicast address is:
Set up in the process in session, set up in the success response in session by operation controlling entity APN and multicast address are sent to subscriber equipment.
10. like the said method of setting up the IPTV multicast service of claim 8, it is characterized in that the acquisition methods of said APN and multicast address is:
Subscriber equipment obtained APN and multicast address from the network element of programs stored information before process is set up in session.
11. like the said method of setting up the IPTV multicast service of claim 8; It is characterized in that said BM-SC is to comprising the opportunity that said subscriber equipment carries out authentication: initially set up multicast conversation, multicast conversation switches to multicast conversation or unicast session switches to multicast conversation.
12., it is characterized in that said BM-SC carries out also comprising before the authentication to said subscriber equipment like the said method of setting up the IPTV multicast service of claim 8:
Direct configure user IMSI and corresponding IPTV service authentication information on BM-SC.
13., it is characterized in that said BM-SC carries out also comprising before the authentication to said subscriber equipment like the said method of setting up the IPTV multicast service of claim 8:
BM-SC obtains user's IPTV service authentication information through home signature user server HSS.
14., it is characterized in that said BM-SC is specially through the method that HSS obtains user's IPTV service authentication information like the said method of setting up the IPTV multicast service of claim 13:
The IMSI of configure user equipment and corresponding relation on HSS with multicast address tabulation that authority watches;
After BM-SC receives the adding multicast request of subscriber equipment, obtain User IP TV service authentication information from HSS.
15., it is characterized in that the method that said BM-SC obtains the IPTV service authentication information of user's IP multimedia public identity IMPU through operation controlling entity is like the said method of setting up the IPTV multicast service of claim 13:
Configure user IMPU and corresponding relation on operation controlling entity with multicast address tabulation that authority watches;
Set up in the process in session, operation controlling entity is handed down to corresponding BM-SC with the IPTV service authentication information of user's current I MPU.
16., it is characterized in that said BM-SC carries out also comprising before the authentication to subscriber equipment: BM-SC sets up in the process in session and obtains User IP TV service authentication information through signaling, is specially like the said method of setting up the IPTV multicast service of claim 8:
Configure user IMPU and corresponding relation on operation controlling entity with multicast address tabulation that authority watches;
Operation controlling entity is received the request that session is set up, and carries the IPTV service authority that active user IMPU is had in the response message that returns;
IMS Core confirms to provide the BM-SC of service according to the multicast address in the response message, and said authority is sent to corresponding BM-SC.
17., it is characterized in that said BM-SC carries out also comprising before the authentication to subscriber equipment like the said method of setting up the IPTV multicast service of claim 8:
BM-SC sets up in the process in session and directly obtains IPTV service authentication information from operation controlling entity.
18., it is characterized in that said BM-SC sets up in session and directly obtains IPTV service authentication information from operation controlling entity in the process and be specially like the said method of setting up the IPTV multicast service of claim 17:
Configure user IMPU and corresponding IPTV authority relation on operation controlling entity;
Operation controlling entity is received session foundation request;
The corresponding authority of the direct PUSH active user of operation controlling entity IMPU is given BM-SC.
19., it is characterized in that said BM-SC sets up in business and directly obtains IPTV service authentication information from operation controlling entity in the process and be specially like the said method of setting up the IPTV multicast service of claim 17:
Configure user IMPU and corresponding IPTV authority relation on operation controlling entity;
BM-SC receives the adding multicast request;
BM-SC is through user's IMSI, and the corresponding relation of multicast address or BM-SC and SCF is confirmed the corresponding business controlled entity;
Operation controlling entity is returned corresponding IPTV service authentication speech breath according to the request of BM-SC.
20. like the said method of setting up the IPTV multicast service of claim 16, it is characterized in that, said authority sent to corresponding BM-SC be specially:
IMS Core receives that IPTV service authentication information issues success response;
IMS Core sends session to subscriber equipment and sets up successfully;
After said subscriber equipment is received response, initiate to add the multicast service request;
Or
Subscriber equipment receives that session sets up success response;
Said subscriber equipment is waited for a time delays, and UE initiates to add the multicast service request after guaranteeing that IPTV service authentication information is handed down to BM-SC;
Or
BM-SC receives user's adding multicast service request;
BM-SC starts back off timer;
BM-SC just carries out scope check after definite IPTV service authentication information is received;
Or
UE resends multicast service and joins request to BM-SC when finding that multicast service foundation is unsuccessful.
21. like claim l5, the 16 or 17 said methods of setting up the IPTV multicast service, it is characterized in that, said IPTV service authentication information sent to corresponding BM-SC be specially:
On operation controlling entity, realize the corresponding relation of IMPU and IMSI;
BM-SC obtains the corresponding relation of IMPU and IMSI.
22. like claim 15, the 16 or 17 said methods of setting up the IPTV multicast service, it is characterized in that, saidly said IPTV service authentication information is sent to corresponding BM-SC be specially:
On BM-SC, directly dispose the corresponding relation of IMPU and IMSI.
23. like the said method of setting up the IPTV multicast service of claim 16, it is characterized in that, also comprise:
When session is set up, issue, on BM-SC, remove the IPTV service authentication information of IMPU during conversation end.
24. set up the method for IPTV multicast service according to claim 1, it is characterized in that, also comprise:
A plurality of IMPU are simultaneously during initiation session, on IMS Core, for each IMPU distributes a Token, set up in session and to issue subscriber equipment in responding;
When said IMPU joins request at the initiation multicast service, carry said Token;
BM-SC judges whether to allow to add corresponding multicast group according to said Token and corresponding IPTV service authentication information.
25. set up the method for IPTV multicast service according to claim 1, it is characterized in that said user also comprises after setting up an IPTV multicast service:
Leave a multi-broadcast group;
Add the another one multi-broadcast group.
26. set up the method for IPTV multicast service according to claim 1, it is characterized in that said user comprises that also the user is initiated as the switching that is multicasted to clean culture after setting up an IPTV multicast service:
Subscriber equipment initiates to be multicasted to the handoff request message of clean culture, wherein carries the sign of setting up clean culture;
After operation controlling entity is received message, set up the control channel and the media transmission channel of a clean culture, set up a unicast session according to the sign judgement needs in the message;
Operation controlling entity obtains corresponding information through the foundation of unicast session, returns to said subscriber equipment by operation controlling entity;
Subscriber equipment is through unicast path receiving media stream.
27. like claim 25 or the 26 said methods of setting up the IPTV multicast service, it is characterized in that, behind the said channel handoff procedure, also comprise the process that reports of channel switching result:
BM-SC opens time-delay and reports timer, behind timer expiry, initiates the process that reports of channel switching result to operation controlling entity;
Or
BM-SC opens time-delay and reports timer, behind timer expiry, initiates the process that reports of channel switching result through IMS Core;
Or
Subscriber equipment is opened time-delay and is reported timer, behind timer expiry, initiates the process that reports of channel switching result through the SIP signaling.
28. a broadcast multicast service center is characterized in that, comprising:
Add multicast service request receiving element, be used to receive the adding multicast service request that said subscriber equipment sends;
Authenticating unit is used to obtain authentication information, and according to IPTV service authentication information said subscriber equipment is carried out service authentication.
The business data transmission unit is used for after authentication is passed through, to the user device transmissions business datum;
The authorization check associative cell is used for session is handled related with the authorization check that joins request to multicast service that carries out in broadcast multicast service center; IMPU, IMSI, user's IPTV service authentication information is carried out association.
29. like the said broadcast multicast service center of claim 28, it is characterized in that, also comprise:
IPTV service authentication information acquisition unit is used to obtain IPTV service authentication information, and concrete obtain manner comprises:
The IPTV service authentication information of direct configure user; Or
Obtain user's IPTV service authentication information through HSS; Or
Set up in the process IPTV service authentication information of obtaining the user through signaling in session; Or
Set up in the process in session and directly to obtain IPTV service authentication information from operation controlling entity.
30. like the said broadcast multicast service center of claim 28, it is characterized in that, also comprise:
Channel switching result reports the unit, is used for opening time-delay and reports timer, behind timer expiry, through initiating the process that reports of channel switching result with operation controlling entity; Or open time-delay and report timer, behind timer expiry, through initiating the process that reports of channel switching result with IMS Core.
31. an operation controlling entity is characterized in that, comprising:
The request receiving element is set up in session, is used to receive said session and sets up request;
Request-response unit is set up in session, is used to return session and sets up request responding, and the response message that wherein carries APN APN and multicast address information returns to said subscriber equipment through said IMS Core; Or obtain APN and multicast address information, and return said subscriber equipment through visit ground operation controlling entity;
IPTV service authentication information issues the unit; Be used for IPTV service authentication information with this locality storage; Or obtain IPTV service authentication information from HSS and be handed down to broadcast multicast service center; Said broadcast multicast service center BM-SC carries out authentication to the user, and session is handled related with the authorization check that joins request to multicast service that carries out at said BM-SC.
32. like the said operation controlling entity of claim 31, it is characterized in that, also comprise:
Switch unit; After being used to receive the handoff request message that is multicasted to clean culture of subscriber equipment initiation; Set up the control channel and the media transmission channel of a clean culture according to the sign judgement needs in the said message, set up a unicast session, through the foundation of unicast session; Obtain corresponding information, return to said subscriber equipment by operation controlling entity.
33. like the said operation controlling entity of claim 31, it is characterized in that, also comprise:
Judging unit, be used to receive the session request of setting up after, judge whether and should handle, if Business Processing is carried out in the said session that terminates by this locality.Otherwise, be routed to visit ground operation controlling entity, handle said session by said visit ground operation controlling entity.
34. like the said operation controlling entity of claim 31, it is characterized in that, also comprise:
The channel switching result receiving element is used to receive the switching result that subscriber equipment or broadcast multicast service center report.
35. a subscriber equipment is characterized in that, comprising:
Request transmitting unit is set up in session, is used for initiation session and sets up request, and described request is carried service identification;
Add the multicast service unit; Be used for sending the request of adding BroadCast MultiCast Service to said broadcast multicast service center; Said broadcast multicast service center BM-SC carries out authentication to the user, and session is handled related with the authorization check that joins request to multicast service that carries out at said BM-SC.
36. like the said subscriber equipment of claim 35, it is characterized in that, also comprise:
Information acquisition unit is used for setting up success response from the session that operation controlling entity is sent and obtains APN and multicast address information; Or set up process in session and from the network element of programs stored information, obtain APN and multicast address information before.
37. like the said subscriber equipment of claim 35, it is characterized in that, also comprise:
Switch unit is used to initiate to be multicasted to the handoff request message of clean culture, wherein carries the sign of setting up clean culture; And after receiving the unicast info that said operation controlling entity returns, flow through the unicast path receiving media.
38. like the said subscriber equipment of claim 35, it is characterized in that, also comprise:
Channel switching result reports the unit, is used for opening time-delay and reports timer, behind timer expiry, initiates the process that reports of channel switching result through the SIP signaling.
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| CN101848215A (en) * | 2010-04-30 | 2010-09-29 | 中山大学 | Method and system for processing multicast services of Internet Protocol Television |
| CN105592328A (en) * | 2014-10-24 | 2016-05-18 | 中兴通讯股份有限公司 | Information processing method, EPG server, and client |
| CN105516115B (en) * | 2015-12-02 | 2019-06-18 | 华为软件技术有限公司 | A kind of method that channel quickly plays and user equipment (UE) |
| WO2019034005A1 (en) | 2017-08-14 | 2019-02-21 | 华为技术有限公司 | Multicast method and device |
| CN109391909B (en) * | 2017-08-14 | 2021-05-14 | 华为技术有限公司 | Multicast method and device |
| CN113411857B (en) | 2018-06-28 | 2022-08-26 | 华为技术有限公司 | Communication method and device |
| CN113068135B (en) * | 2020-01-02 | 2022-07-19 | 维沃移动通信有限公司 | Multicast service processing method, multicast service configuration method and related equipment |
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