CN102098624A - Control method and terminal of multi-media broadcasting service - Google Patents
Control method and terminal of multi-media broadcasting service Download PDFInfo
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- CN102098624A CN102098624A CN2011100751558A CN201110075155A CN102098624A CN 102098624 A CN102098624 A CN 102098624A CN 2011100751558 A CN2011100751558 A CN 2011100751558A CN 201110075155 A CN201110075155 A CN 201110075155A CN 102098624 A CN102098624 A CN 102098624A
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Abstract
The embodiment of the invention provides a control method and terminal of a multi-media broadcasting service. The method comprises the following steps: receiving a service guide, wherein the business guide comprises multi-network access information for supporting the multi-media broadcasting service; when network switch is required, acquiring access information of switched target networks in accordance with the service guide; and continuing to receive the multi-media broadcasting service from the target networks in accordance with the access information of the target networks. The method is subjected to related switching treatment at the backstage, thus a user can finish the smooth switching of the service at the same time of watching a program, and the user does not perceive the interruption of the service, thereby strengthening the use experiences of the user.
Description
Technical field
The present invention is about communication technical field, especially in regard to a kind of control method and terminal of multi-media broadcasting service.
Background technology
BCAST (Broadcast: Radio Broadcasting Agreements) be OMA (Open Mobile Architecture: the notion of a mobile broadband digital broadcasting/multicast service that Open Mobile Alliance) puts forward.In broadcasting, it comprises the broadcast mode and multileaving (multicast) mode of traditional one-to-many, and considers on the existing network architecture original digital broadcasting service to be coupled together.OMA BCAST is devoted to aspects such as service discovering, electronic programming/guiding service, charging, content protecting, formulates concrete service enabler, and guarantees that it is independent of bearing bed.
On September 10th, 2004, companies such as Motorola, NEC, Nokia, Siemens and Sony Ericsson unite declaration--and they will launch cooperation in the mobile broadcast service program that OMA initiates.The common program of this work is to determine broadcast service is introduced the needed promotion condition of mobile phone for concrete, thereby opens new markets for new breathtaking service and terminal equipment.
The most influential in the mobile broadcast service may be exactly " cell phone TV service ".This is a kind of method that receives similar television content by mobile broadcast network.Generally speaking, mobile broadcast can a large amount of content of multimedia of propagating in low-cost high-efficiency ground.Industry thinks that mobile broadcast can improve the media content consumption of using mobile device.Mobile broadcast estimates to stimulate the consumption demand of novel the color screen smart mobile phone with broadcast capability, mobile phone memory capacity and television content and content of multimedia.
In OMA BCAST, distributing broadcasting system), Terminals (terminal) integrates from application layer, makes system be independent of bottom-layer network defined service enabler (enablers) is responsible for (the Broadcast Distribution Systems: with the CP in the whole system (Content Provider content supplier), BDSs.The multimedia broadcast multicast service), BCMCS (Broadcast/Multicast Services: broadcasting/packet service), different distributing network such as DVB-H (Digital Video Broadcasting Handheld: digital video broadcasting-hand-held) wherein BDSs can be MBMS (Multimedia Broadcast Multicast Service:.
Whole BCAST operation system partly is made up of funtion part, protocol section, bearer network.Funtion part comprises: Streaming Media distribution function, file distribution function, service protection function, content protection function, business present function, service discovering and navigation feature, informing function, interactive function etc.RTCP Real-time Transport Control Protocol) protocol section comprises: RTCP (Real-time Control Protocol: transmission control protocol, content encoding format protocol etc. such as.DMB) bearer network partly comprises: the DVB-H of IP layer and bottom, MBMS, BCMCS, DMB (Digital Multimedia Broadcasting: network such as.
OMA standard code, mobile video broadcast business are necessary for the user SG are provided (Service Guide: business guide) information.Wherein the SG information spinner will comprise the simple introduction to each business (may be certain television channel), and multicast conversation information that should the business correspondence (multicast conversation information specifically comprises purpose multicast IP address and the port numbers that is used for specifically transmitting program stream, source IP address, may also have Session ID etc.), thus terminal can be subscribed to some program or some program is watched in request according to the relevant information that provides among the SG.
Wherein, SG information can adopt by network side and send to all users that carried out registration at broadcasting service provider place in the mode of broadcasting, can adopt also that initiatively it issues SG information to the network side request by the user.The SG of BCAST is made up of the different pieces of information burst, between each data fragmentation by reference with related opening relationships, information such as channel designation, programm name, brief introduction, time started, concluding time, paying standard, way of paying, channel access way have been described in the set of these bursts jointly.
Mobile Broadcast Services can be carried out by different distributing networks, also can provide by different broadcast service providers, so, have a plurality of broadcasting service service providers on the same bearer network, same broadcasting service service provider also can provide broadcast service by multiple network simultaneously.
The same business that different distributing networks or different service provider provide, its access parameter can be different, as access frequency point or session IP address etc.As the user who has signed the Mobile Broadcast Services roaming agreement, when roaming into different bearer networks or different service provider coverage, access zone network sends business guide to terminal, the user initiates a BCAST service request according to the information that business guide provides to visit ground BCAST service server, the BCAST service server sends the service authorization request to terminal attaching ground BCAST service server, if the BCAST service server of visited network is received the response of terminal attaching ground BCAST service server, then the BCAST service server of access zone network sends service authorization information to terminal, and terminal has the right to watch corresponding business.
For the situation of this roaming, prior art can not guarantee business continuance.The user need obtain the business guide of roaming place again, reselects and wants the program watched, and this will reduce user experience greatly.
Summary of the invention
In order to address the deficiencies of the prior art, the purpose of the embodiment of the invention has provided a kind of control method and terminal of multi-media broadcasting service, and this terminal switches to objective network with business automatically according to network change, guarantees business continuance.
For realizing above goal of the invention, the embodiment of the invention provides a kind of control method of multi-media broadcasting service, described method comprises: receive business guide, the access information that has comprised a plurality of networks of supporting described multi-media broadcasting service in the described business guide can comprise corresponding network identity in the access information; When needs carry out the network switching,, receive described multi-media broadcasting service from the continued access of described objective network relaying according to described access information according to the access information of described business guide acquisition objective network.
For realizing above goal of the invention, the embodiment of the invention also provides a kind of terminal of supporting multi-media broadcasting service, described terminal comprises: the business guide receiving element, be used to receive business guide, the access information that has comprised a plurality of networks of supporting described multi-media broadcasting service in the described business guide can comprise corresponding network identity in the access information; The professional performance element that switches is used for when needs carry out the network switching, according to the access information of described business guide acquisition objective network, receives described multi-media broadcasting service according to described access information from the continued access of described objective network relaying.
For realizing above goal of the invention, the embodiment of the invention also provides a kind of control system of multi-media broadcasting service, described system comprises: the multi-media broadcasting service server, described multi-media broadcasting service server comprises: the business guide release unit, be used for the issuing service guide, the access information that has comprised a plurality of access zone networks of supporting described multi-media broadcasting service in the described business guide can comprise corresponding network identity in the access information; The multi-media broadcasting service terminal, described multi-media broadcasting service terminal comprises: the business guide receiving element is used to receive described business guide; The professional performance element that switches is used for when needs carry out the network switching, according to the access information of described business guide acquisition objective network, receives described multi-media broadcasting service according to described access information from the continued access of described objective network relaying.
The method of the embodiment of the invention has comprised the access information of a plurality of networks of supporting this multi-media broadcasting service in business guide, can comprise corresponding network identity in the access information, make the user when network switches, not need to regain business guide and also seek the program that to watch, but according to the business guide that obtained the access information of the objective network after inquiry is switched, continue to receive this multi-media broadcasting service from objective network.This method is carried out related switching processing on the backstage, the user just can finish professional taking over seamlessly when watching program, and can not perceive professional interruption, has strengthened user's experience.
Description of drawings
Fig. 1 is the systematic schematic diagram of the embodiment of the invention;
Fig. 1 a is the professional a kind of refinement block diagram that switches performance element 202 of the embodiment of the invention;
Fig. 1 b is the professional another kind of refinement block diagram that switches performance element 202 of the embodiment of the invention;
Fig. 2 is the partial content schematic diagram of the business guide of the embodiment of the invention;
Fig. 3 is the detail flowchart of the embodiment of the invention 1;
Fig. 4 is the detail flowchart of the embodiment of the invention 2;
Fig. 5 is the detail flowchart of the embodiment of the invention 3.
Embodiment
The embodiment of the invention provides a kind of control method and terminal of multi-media broadcasting service.This method has not only comprised the description to multi-media broadcasting service in the business guide that belonging area network issues, the access information that has also comprised a plurality of networks of supporting described business comprises the access information of belonging area network and the access information of a plurality of access zone networks.When terminal is watching that certain multi-media broadcasting service need carry out network when switching, can from the business guide that has received, find the access information of objective network, continue to receive this multi-media broadcasting service by this access information, and do not need to interrupt the current program of watching from objective network.
The hereinafter described belonging area network of present embodiment is meant the network of business guide ownership itself, also is the network that terminal receives business guide; Access zone network is corresponding with belonging area network, is meant the network of supporting identical multi-media broadcasting service with belonging area network, and access zone network can have a plurality of, and the user just can receive this multi-media broadcasting service from these access zone networks after signing roaming agreement; Service network is meant the current network that service is provided for terminal, residing network before promptly terminal is switched; Objective network is corresponding with service network, refers to the network that terminal promptly will be gone to, the network after promptly terminal is switched.Service network and objective network both can be that belonging area network also can be an access zone network, can roam into access zone network from the belonging area network of this multi-media broadcasting service as the user, also can return the ownership place networking, or roam into another access zone network from an access zone network from access zone network.
Specific embodiments of the present invention is described in detail below in conjunction with accompanying drawing.
Fig. 1 is the systematic schematic diagram of the embodiment of the invention.As shown in the figure, this system comprises multi-media broadcasting service server 10 and multi-media broadcasting service terminal 20.Wherein, multi-media broadcasting service server 10 is used to provide multi-media broadcasting service, comprises business guide release unit 101, is used for the issuing service guide, has comprised the access parameter of a plurality of networks of supporting described multi-media broadcasting service in the described business guide.Multi-media broadcasting service terminal 20 comprises: business guide receiving element 201 is used to receive described business guide; The professional performance element 202 that switches is used for when needs carry out the network switching, according to the access information of described business guide acquisition objective network, receives described multi-media broadcasting service according to described access information from the continued access of described objective network relaying.
Fig. 1 a is the professional a kind of refinement block diagram that switches performance element 202 of the embodiment of the invention.In this embodiment, comprise network identity in the described access information.As shown in Figure 1a, the professional performance element 202 that switches further comprises: objective network sign acquiring unit 301, be used to obtain the network identity of objective network, as can to as described in the network identity of the ownership place server lookup of the business guide objective network after switching, the perhaps network identity of the objective network after the service network inquiry at current place is switched.Access information query unit 302 is used for according to the network identity of the described objective network access information from the described business guide inquiry network corresponding with described network identity.Multi-media broadcasting service receiving element 303 is used for receiving described multi-media broadcasting service according to described access information from the continued access of described objective network relaying.
Fig. 1 b is the professional another kind of refinement block diagram that switches performance element 202 ' of the embodiment of the invention.Shown in Fig. 1 b, the professional performance element bag 202 ' that switches comprising: access information selected cell 401 is used for selecting the access information as objective network from the network access information that described business guide provides; Multi-media broadcasting service receiving element 303 is used for receiving described multi-media broadcasting service according to described access information from the continued access of described objective network relaying.In an optional execution mode, access information selected cell 401, be used for receiving described multi-media broadcasting service successively or at random or, can receive the access information of the access information of described multi-media broadcasting service as objective network according to the network access information that priority selects described business guide to provide.
Fig. 2 is the partial content schematic diagram of the business guide of the embodiment of the invention.As shown in the figure, " professional 1 " is provided by two A of operator, B respectively, and the network of the A of operator is a belonging area network, and the network of the B of operator is an access zone network.In the network of the A of operator, this professional network access information is by the information description that inserts in the burst " access 1 ", and " conversation description 1 " that " inserting 1 " burst points to provided the session parameter of concrete access, as coded format, speed etc.In the network of the B of operator, this professional network access information is by the information description that inserts in the burst " access 2 ", and " conversation description 2 " that " inserting 2 " burst points to provided concrete access session parameter, as coded format, speed etc.These two are inserted burst and all point to associated professional burst " professional 1 ", network identity " Attached_ID " in the access burst has identified the service network of each burst correspondence, represents that as " Attached_ID=001 " this access burst is pairing with the network of the A of operator.
Embodiment one:
Present embodiment provides a kind of multiple access selection mode that provides in business guide to realize inserting the method for switching.If the user roams in watching the program process, terminal will be according to the variation of service provider or bearer network, select new access burst to insert broadcasting service, in this process, it is to finish on the backstage that terminal is initiated service request at roaming network, do not need to interrupt program and watch, kept business continuance.
Business guide needs following the modification in the present embodiment: except business at the access burst on terminal attaching ground with professional burst is related, the access burst of visiting ground also carries out related with professional burst.In inserting burst, increase network identity, distinguish the different access network of access by different network identities, insert burst further corresponding to session description information, provided concrete access session parameter in the session description information, as coded format, speed etc., be used for receiving this multi-media broadcasting service from different networks.The handoff scenario that present embodiment is considered is: terminal is in belonging area network, is switched to access zone network by belonging area network.Terminal is by the ownership place server, be that multi-media broadcasting service server 10 obtains the access zone network sign, and further obtain to visit the professional access burst in ground according to business guide, insert pairing this session description information of burst by this and continue to receive this multi-media broadcasting service from access zone network.Whole process is carried out on the backstage, can not interrupt the current program of watching.
Fig. 3 is the detail flowchart of present embodiment.Below in conjunction with Fig. 2 the flow process of Fig. 3 is described in detail:
Step S301, terminal receives business guide from the multi-media broadcasting service server 10 of belonging area network, the Information Selection that the user provides according to business guide " professional 1 ", terminal inserts the program that burst " inserts 1 " and session description information " conversation description 1 " access of this access burst correspondence is selected by ownership place.
Step S302, when terminal is being watched the intersection that roams into A of operator and the B of operator belonging network in the program process, terminal detects the belonging area network signal strength signal intensity less than default threshold value, then terminal is initiated query requests, the multi-media broadcasting service that carried terminal place cell id (Cell-ID) and terminal are receiving in the request number (service ID) by the Internet to the ownership place server.
Step S303, the ownership place server judges according to Cell-ID whether terminal will soon be roamed after receiving the request message that terminal sends, if, then search visit ground server (i.e. the multi-media broadcasting service server on visit ground) address, and initiate the service request of program that the user watches to visit ground server.
Step S304, visit ground server responds service request.If visit ground can provide the business of being asked, and the user has authority watching this program on visit ground, and then visit ground server returns the request success response, enters step S305 at this moment; As visit the ground server and return the request failure response, enter step S307 this moment.
Step S305 receives the request success response that visit ground is served, and the ownership place server sends to terminal with the access zone network sign.
Step S306, after terminal receives the response of ownership place server, from business guide, search the access burst corresponding according to the access zone network sign and " insert 2 ", and switch to corresponding session, watch the program that access zone network issues according to " conversation description 2 " with this network identity.
Step S307 disconnects the program of watching.Terminal need receive business guide again from visit ground and select program to watch.
Said method is that example is described with roaming between the different operators network, also is the same for its principle of roaming between the same operator different loading network.When the user roams, will interrupt the program that terminal is receiving in the prior art, terminal need be obtained the business guide on visit ground again, selects program to watch.The benefit of this enforcement is that terminal was carried out hand-off process when the user was watching program on the backstage, and the user just can finish professional taking over seamlessly in situation about not discovering like this, has strengthened user's experience.
Embodiment two:
Present embodiment provides a kind of mode that provides multiple access to select in business guide to realize inserting the method for switching.Be that with the difference of embodiment one present embodiment is in the first access zone network receiving multimedia broadcast business procedure, the user moves to the professional hand-off process of the belonging area network or second visited network from first access zone network.
Fig. 4 is the flow chart of present embodiment, describes the realization flow of present embodiment in detail below in conjunction with Fig. 2:
Step S401, when terminal moves to the second visited network intersection in first access zone network (being current service network) receiving multimedia broadcast process, terminal detects the first visited network signal strength signal intensity less than default threshold value, then terminal is initiated query requests by the Internet to the first visit ground server, carried terminal place cell id Cell-ID in the request, and terminal is receiving professional Service ID.Terminal can directly be initiated request to the first visit ground server, also can initiate request to the first visit ground server by the ownership place server, decides on specific implementation.
Step S402, the first visit ground server judge according to Cell-ID whether terminal will soon be roamed after receiving the request message that terminal sends.If then search second server address of visiting ground that terminal is about to roam into, and initiate service request to the second visit ground.
Step S403, the second visit ground server responds service request.If visit ground can provide the business of being asked, and the user has authority watching this program on visit ground, and then visit ground server returns the request success response, enters step S404 at this moment; Otherwise visit ground server returns the request failure response, enters step S406.
Step S404 receives the request success response that the second visit ground is served, and the first visit ground server sends to terminal with second access zone network sign, and this second access zone network sign is objective network and identifies.
Step S405, after terminal receives the response of the first visit ground server, search the access burst " AccessN " corresponding according to second access zone network sign with this network identity, and switch to corresponding session according to " AccessN " corresponding session description information, to continue receiving this multi-media broadcasting service from second access zone network.
Step S406 if response is failed then terminal need disconnect the current program of watching, need receive business guide again from visit ground server and select program to watch.
It is that example describes that present embodiment moves to second from the first visit ground with terminal with visiting, and terminal is got back to belonging area network from first with visiting, and handling process is similar substantially, no longer describes in detail herein.Present embodiment is that example is described with roaming between the different operators network, also is the same for its principle of roaming between the same operator different loading network.
Embodiment three:
Present embodiment provides the another kind of mode that provides multiple access to select in business guide to realize inserting the method for switching.Different with embodiment one, two is, the terminal of present embodiment does not need to initiate networking sign and the access information that request obtains objective network by the Internet to server, and terminal can realize professional the switching by the judgement of self.
The business guide of present embodiment need be made following modification equally: except business at the access burst on terminal attaching ground with professional burst is related, the access burst on visit ground also carries out related with professional burst.Insert burst further corresponding to session description information, provided concrete access session parameter in the session description information,, be used for receiving this multi-media broadcasting service from different networks as coded format, speed etc.
Figure is the detailed process of present embodiment, below in conjunction with Fig. 2 the flow process of Fig. 5 is described in detail:
Step S501, terminal receives business guide from belonging area network, the Information Selection that the user provides according to business guide " professional 1 ", terminal inserts the session parameter that burst " inserts 1 " and session description information " conversation description 2 " provides by ownership place and inserts the program of selecting.
Step S502, when terminal is being watched the intersection that roams into A of operator and the B of operator belonging network in the program process, terminal detects the belonging area network signal strength signal intensity less than default threshold value, and then terminal selects other to insert burst, inserts according to inserting burst information.Terminal is selected other modes that insert bursts can be selective sequential or select at random or select according to priority orders.
Step S503, if the signal strength signal intensity that receives then enters step S404 greater than threshold value, the program that terminal will watched switches in the new access channel.If the signal strength signal intensity that receives then enters step S505 less than threshold value.
Step S504, the program that terminal will watched switches in the new access channel.
Does step S505 judge whether to have searched all access bursts? if then enter step S506, if otherwise still get back to step S502, continue to select remaining access burst.
Step S506 if terminal selects all to insert bursts, inserts the back signal strength signal intensity and can not meet the demands, and then terminal is thought handoff failure, along with the disappearance of ownership place signal, interruption program.Terminal need adopt prior art to obtain business guide again from access zone network, selects to watch program.
Present embodiment does not need the participation of server, but is judged by terminal self, to determine objective network and to continue to receive this multi-media broadcasting service from objective network.Terminal was carried out hand-off process when the user was watching program on the backstage, and the user just can finish professional taking over seamlessly in situation about not discovering like this, has strengthened user's experience.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. the control method of a multi-media broadcasting service is characterized in that, described method comprises:
Receive business guide, comprised description in the described business guide to multi-media broadcasting service, and the access information of supporting a plurality of networks of described multi-media broadcasting service, the access information of described a plurality of networks comprises the access information of first network and the access information of second network, and described second network is the network of the described multi-media broadcasting service identical with described first network support;
When needs carried out the network switching, according to the access information of described business guide acquisition objective network, described objective network was that network switches the residing network of back terminal; Access information according to described objective network is received described multi-media broadcasting service from the continued access of described objective network relaying.
2. method according to claim 1 is characterized in that, described first network is the network of described business guide ownership itself, and described second network is an access zone network of supporting identical described multi-media broadcasting service with described belonging area network.
3. method according to claim 2 is characterized in that, comprises network identity in the described access information.
4. method according to claim 3 is characterized in that, the access information according to described business guide acquisition objective network comprises:
Obtain the network identity of objective network;
From described business guide, inquire about the access information of the network corresponding with described network identity according to the network identity of described objective network.
5. method according to claim 4 is characterized in that, obtains the network identity of objective network, comprising:
The network identity of the objective network after the ownership place server lookup of described business guide is switched, described ownership place server is the multi-media broadcasting service server in the described belonging area network.
6. method according to claim 4 is characterized in that, obtains the network identity of objective network, also comprises:
The network identity of the objective network after the service network inquiry is switched, described service network is meant the current network that service is provided for terminal.
7. method according to claim 1 and 2 is characterized in that, the access information according to described business guide acquisition objective network comprises:
From the network access information that described business guide provides, select a access information as objective network.
8. method according to claim 7 is characterized in that, selects the access information as objective network from the network access information that described business guide provides, and comprising:
Receive described multi-media broadcasting service successively or at random or, can receive the access information of the access information of described multi-media broadcasting service as objective network according to the network access information that priority selects described business guide to provide.
9. method according to claim 8 is characterized in that, can receive the access information of the access information of described multi-media broadcasting service as objective network, specifically comprises:
Judge to adopt selected access information whether can normally receive described multi-media broadcasting service;
If can normally receive then with the access information of selected access information as objective network; If can not normally receive then reselect access information.
10. method according to claim 9 is characterized in that, judges and adopts selected access information whether can normally receive described multi-media broadcasting service, to comprise:
Detect the signal strength signal intensity of institute's access network;
When the signal strength signal intensity of institute's access network during, judge that then selected access information can normally receive described multi-media broadcasting service greater than setting threshold.
11. a terminal of supporting multi-media broadcasting service is characterized in that, described terminal comprises:
The business guide receiving element, be used to receive business guide, comprised description in the described business guide to multi-media broadcasting service, and the access information of supporting a plurality of networks of described multi-media broadcasting service, the access information of described a plurality of networks comprises the access information of first network and the access information of second network, and described second network is the network of the described multi-media broadcasting service identical with described first network support;
The professional performance element that switches is used for when needs carry out the network switching, and according to the access information of described business guide acquisition objective network, described objective network is that network switches the residing network of back terminal; And be used for receiving described multi-media broadcasting service from the continued access of described objective network relaying according to described access information.
12. method according to claim 1 is characterized in that, described first network is the network of described business guide ownership itself, and described second network is an access zone network of supporting identical described multi-media broadcasting service with described belonging area network.
13. terminal according to claim 12 is characterized in that, comprises network identity in the described access information; The described professional performance element that switches comprises:
Objective network identifies acquiring unit, is used to obtain the network identity of objective network;
The access information query unit is used for according to the network identity of the described objective network access information from the described business guide inquiry network corresponding with described network identity;
The multi-media broadcasting service receiving element is used for receiving described multi-media broadcasting service according to described access information from the continued access of described objective network relaying.
14. terminal according to claim 13 is characterized in that,
Described objective network identifies acquiring unit, is used for the network identity of the objective network after the ownership place server lookup of described business guide is switched, and described ownership place server is the multi-media broadcasting service server in the described belonging area network.
15. terminal according to claim 13 is characterized in that,
Described objective network sign acquiring unit: also be used for the network identity of the objective network after the service network inquiry is switched, described service network is meant the current network that service is provided for terminal.
16. terminal according to claim 12 is characterized in that, the described professional performance element that switches comprises:
The access information selected cell is used for selecting the access information as objective network from the network access information that described business guide provides;
The multi-media broadcasting service receiving element is used for receiving described multi-media broadcasting service according to described access information from the continued access of described objective network relaying.
17. terminal according to claim 16 is characterized in that,
Described access information selected cell, be used for receiving described multi-media broadcasting service successively or at random or, can receive the access information of the access information of described multi-media broadcasting service as objective network according to the network access information that priority selects described business guide to provide.
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| CN113784400A (en) * | 2020-06-10 | 2021-12-10 | 中国移动通信有限公司研究院 | Switching method, processing method, device, network equipment and core network equipment |
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