CN101827306A - Switching method and device of unicast service - Google Patents

Switching method and device of unicast service Download PDF

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Publication number
CN101827306A
CN101827306A CN200910078806A CN200910078806A CN101827306A CN 101827306 A CN101827306 A CN 101827306A CN 200910078806 A CN200910078806 A CN 200910078806A CN 200910078806 A CN200910078806 A CN 200910078806A CN 101827306 A CN101827306 A CN 101827306A
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unicast service
service
broadcasting
switching command
packet
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CN200910078806A
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Chinese (zh)
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邢晓江
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ZTE Corp
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ZTE Corp
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Abstract

The invention discloses a switching method of a unicast service, comprising the following steps of: issuing the establishing process of a real-time stream transport protocol (RTSP) link to the unicast service as same as the current broadcast/multicast service on a unicast service platform by using a mobile terminal positioned in the broadcast/multicast service when the mobile terminal detects that the channel quality of the current broadcast/multicast service is lower than the first threshold value, and triggering and switching to the switching command of the unicast service after establishing the RTSP link; directly issuing the playing command of the unicast service by using the mobile terminal when receiving the switching command of the unicast service, and receiving the unicast service through the RTSP link. The invention simultaneously discloses a switching device of the unicast service. The invention can rapidly switch the broadcast/multicast service to the unicast service corresponding to the broadcast/multicast service, thereby greatly raising the experiences of users and improving the service quality provided by the whole service content.

Description

The changing method of unicast service and device
Technical field
The present invention relates to a kind of changing method and device of unicast service.
Background technology
Present continuous development along with mobile multi-media broadcasting service, the business that is provided is also more and more, simultaneously, along with development of wireless communication devices, the wireless data access ability is also more and more higher, micro-wave access global inter communication (the Wimax of present development, Worldwide Interoperability for Microwave Access), high-speed packet inserts (HSPA, High-Speed Packet Access) and Long Term Evolution (LTE, Long TimeEvolution) etc. the technology wireless data access ability that can provide is more and more higher, the network service is enough to carry content service, and above-mentioned network had both been supported the unicast service service, also supports the multicast/broadcast business.And provide the network of mobile multimedia content service more ripe by the broadcast/group broadcast mode, these content service systems comprise: handheld device digital television broadcasting standard (DVB-H, Digital Video Broadcasting-Handheld) system, China Mobile multimedia broadcasting (CMMB, China Mobile Multimedia Broadcasting) system, TMMB (the mobile TV GB of China) system, multimedia broadcast multicast services (MBMS, Multimedia Broadcast Multicast Service) etc., though the detail difference that the foregoing service system realizes, but its service object and service content are consistent, at present, share between the business platform of clean culture and multicast and intercommunication is a trend, to realize the mutual supplement with each other's advantages of broadcast/group broadcast and clean culture, for example, in the broadcast/group broadcast signal coverage areas, the broadcasting/packet service that the user selects the broadcasting/packet service platform to provide, and broadcast/group broadcast dtr signal or when leaving the broadcast/group broadcast signal coverage areas, the user continues to watch corresponding business by the unicast service platform, thereby provides better content service quality for the user.
At present, though the system that has broadcasting/packet service platform and unicast service platform to merge, but the general mode that provides respectively that still adopts when the user provides the corresponding contents service, even user terminal is supported clean culture and broadcasting/packet service simultaneously, very inconvenience when the business switching of carrying out between clean culture and the broadcast/group broadcast, user experience is relatively poor, for example the user is when watching the broadcast/group broadcast live broadcast service, when if current broadcast/multicast signal is relatively poor, user's unicast mode of will having to switch to inserts the corresponding service of unicast service platform, so again, because of business is switched meeting waste long time, thereby cause the user to miss important business tine.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of changing method and device of unicast service, can from broadcasting/packet service switch to apace with the corresponding unicast service of broadcasting/packet service on.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of changing method of unicast service comprises:
When being in channel quality that portable terminal in the broadcasting/packet service detects current broadcast/multicast and being lower than first threshold, with the current broadcast/multicast service identical unicast service of described portable terminal on the unicast service platform initiated the process of setting up of real time streaming transport protocol RTSP link, and triggers the switching command that switches to described unicast service after described RTSP link establishment is finished; And
When receiving the switching command of described unicast service, described portable terminal is directly initiated the play command to described unicast service, and receives described unicast service by described RTSP link.
Preferably, described method also comprises:
When described portable terminal receives broadcasting/packet service or receive the information of obtaining access address, access way and the access parameter of described unicast service before the broadcasting/packet service.
Preferably, trigger the switching command that switches to described unicast service, be specially:
Whether the prompting user switches to described unicast service, triggers the switching command of described unicast service by the user, or surpasses not set when duration receives the switching command of described unicast service and trigger automatically; Perhaps, when being lower than second threshold value, triggers current channel quality the switching command of described unicast service automatically.
Preferably, described method also comprises:
After receiving described play command, described unicast service platform judges whether the described unicast service that request is play is real time business, if then current live data is sent to described portable terminal, if not then the business guide tabulation of the moment of initiating according to described play command and described broadcasting/packet service place channel is determined described unicast service and play the starting point of described unicast service, and send the data of described unicast service to described portable terminal from described starting point.
Preferably, described channel quality comprises the height of signal strength signal intensity, the size of packet packet loss.
A kind of switching device shifter of unicast service comprises:
Detecting unit is used to detect the channel quality of the current broadcasting/packet service that receiving element receives;
Judging unit is used to judge whether the channel quality that described detecting unit detects is lower than first threshold, triggers RTSP link establishment unit when being;
RTSP link establishment unit is used for the unicast service identical with current broadcast/multicast service on the unicast service platform initiated the process of setting up of real time streaming transport protocol RTSP link, and triggers the switching command trigger element after described RTSP link establishment is finished;
The switching command trigger element is used to trigger the switching command that switches to described unicast service;
Play command is initiated the unit, and the RTSP link that is used for being set up by described RTSP link establishment unit when receiving the switching command of described unicast service is directly initiated the play command to described unicast service; And
Receiving element is used for receiving described unicast service by the RTSP link that described RTSP link establishment unit is set up, and receives broadcasting/packet service.
When preferably, described receiving element receives broadcasting/packet service or receive the information of obtaining access address, access way and the access parameter of described unicast service before the broadcasting/packet service.
Preferably, described device also comprises:
Tip element is used for whether the prompting user switches to described unicast service after the foundation of RTSP link is finished in described RTSP link establishment unit; When described receiving element receives the user according to the switching command of the described unicast service of described Tip element suggestion content input, trigger the switching command trigger element.
Preferably, described switching command trigger element surpass to be set the switching command that triggers described unicast service when duration does not receive the switching command of described unicast service automatically at described receiving element; Perhaps, when determining that current channel quality is lower than second threshold value, triggers described judging unit the switching command of described unicast service automatically.
Preferably, after described unicast service platform receives the play command of described play command initiation unit, described unicast service platform judges whether the described unicast service that request is play is real time business, if then current live data is sent to described receiving element, if not then the business guide tabulation of the moment of initiating according to described play command and described broadcasting/packet service place channel is determined described unicast service and play the starting point of described unicast service, and send the data of described unicast service to described receiving element from described starting point.
Unicast service platform of the present invention and the intercommunication of broadcasting/packet service platform, when providing broadcasting/packet service for the user or before, current or the broadcasting/packet service information such as access address, access way on the unicast service platform desiring to provide of informing user terminal, with make things convenient for user terminal insert at any time on the unicast service platform with the identical business of broadcasting/packet service current or that desire to provide.User terminal is according to the access address that receives, information such as access way, be established to the real time streaming transport protocol (RTSP of unicast service platform in advance, Real TimeStreaming Protocol) link, and can point out the user whether to switch to unicast service, in case receive switching command, the user terminal directly corresponding service on the unicast service platform sends the play order, the unicast service platform provides corresponding unicast service by RTSP chain road direction user terminal after receiving the play order immediately, thereby avoided the process that inserts the unicast service platform again and apply for corresponding service, for the user, the time that current business tine is interrupted is quite short, can not have influence on the continuity of whole service content, promote user's experience greatly, improved the service quality that the whole service content provides.
Description of drawings
Fig. 1 is the composition structural representation of operation system of the present invention;
Fig. 2 is the flow chart of the changing method of unicast service of the present invention;
Fig. 3 is a kind of composition structural representation of the switching device shifter of unicast service of the present invention;
Fig. 4 forms structural representation for the another kind of the switching device shifter of unicast service of the present invention.
Embodiment
Basic thought of the present invention is: unicast service platform and the intercommunication of broadcasting/packet service platform, when providing broadcasting/packet service for the user or before, current or the broadcasting/packet service information such as access address, access way on the unicast service platform desiring to provide of informing user terminal, with make things convenient for user terminal insert at any time on the unicast service platform with the identical business of broadcasting/packet service current or that desire to provide.User terminal is according to the access address that receives, information such as access way, be established to the RTSP link of unicast service platform in advance, and can point out the user whether to switch to unicast service, in case receive switching command, the user terminal directly corresponding service on the unicast service platform sends broadcast (play) order, the unicast service platform provides corresponding unicast service by RTSP chain road direction user terminal after receiving the play order immediately, thereby avoided the process that inserts the unicast service platform again and apply for corresponding service, for the user, the time that current business tine is interrupted is quite short, can not have influence on the continuity of whole service content, promote user's experience greatly, improved the service quality of whole service content.
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 1 is the composition structural representation of operation system of the present invention, as shown in Figure 1, operation system of the present invention comprises the broadcasting/packet service platform, the broadcast/group broadcast network, unicast service platform and unicast networks, wherein, broadcasting/packet service platform and unicast service platform are connected to each other, its business tine can realize sharing, the broadcasting/packet service platform provides the business guide of broadcasting/packet service to the user, and adding gets access to identical services service manner and parameter information with mode of unicast in the related service information of business guide, as the access address of broadcasting/packet service on the unicast service platform, the information of access way and access parameter is so that user terminal uses mode of unicast to watch the content service identical with broadcasting/packet service in suitable.Business tine on the broadcasting/packet service platform is by the broadcast/group broadcast network, and all portable terminals in the broadcast/group broadcast network carry out broadcast/group broadcast, and portable terminal receives broadcasting/packet service and plays to the user.The broadcast/group broadcast network here includes but not limited to DVB-H network, CMMB network, TMMB network and MBMS network etc.
The unicast service platform provides business tine service in the mode of clean culture to the user by unicast networks, and professional presentation mode wherein includes but not limited to downloading mode, Streaming Media mode etc.Unicast networks includes but not limited to Wimax network, HSPA network, LTE network, Wideband Code Division Multiple Access (WCDMA) (WCDMA, WidebandCode Division Multiple Access) network, TD SDMA (TD-SCDMA, TimeDivision-Synchronous Code Division Multiple Access) network etc.
Among the present invention, user terminal can obtain and resolve the business guide of broadcasting/packet service, the content information of in user's display business guide, describing, and can obtain and play the corresponding business content, in the present invention, user terminal can obtain business tine service on the broadcasting/packet service platform by the broadcast/group broadcast network, also can obtain business tine service on the unicast service platform by unicast networks simultaneously.
Fig. 2 is the flow chart of the changing method of unicast service of the present invention, and as shown in Figure 2, the changing method of unicast service of the present invention may further comprise the steps:
Step 201: the broadcasting/packet service platform is organized the business guide of broadcasting/packet service, and in business guide, provide on the unicast service platform with described business guide in the professional identical business that relates to access address, access way and insert information such as relevant parameter.Why inserting the business of related service in unicast networks and obtain information in the business guide of broadcasting/packet service, is to make things convenient for user terminal can finish switching quickly when switching to unicast networks and carry out service access.Between broadcasting/packet service platform and the unicast service platform is intercommunication, and the broadcasting/packet service platform can obtain the address at the unicast service place identical with broadcasting/packet service easily and insert the required access way of described unicast service etc.It will be appreciated by those skilled in the art that intercommunication between broadcasting/packet service platform and the unicast service platform or professional sharing are to realize easily.On the unicast service platform with described business guide in the professional identical business that relates to access address, access way and insert information such as relevant parameter and also can when user terminal is play broadcasting/packet service, offer user terminal.The mode that offers user terminal also can not used the business guide of broadcasting/packet service, and being set, realizes special new notification message, the message format of described notification message is identical with existing message format, just indication information and the information content difference of inserting.
Step 202: user terminal gets access to business guide by the broadcast/group broadcast network.Before providing business guide to user terminal, the broadcasting/packet service platform can authenticate and authentication user terminal, and the business guide that provides can be carried out safeguard protection, and as encrypting etc., user terminal gets final product by corresponding secret key decryption.It will be appreciated by those skilled in the art that the broadcasting/packet service platform authenticates mode with authentication to user terminal, and business guide or service security protected mode are to realize easily.
Step 203: user terminal is resolved business guide, obtain corresponding business information according to the indication of business guide, user terminal obtain simultaneously on the unicast service platform with described business guide in the professional identical business that relates to access address, access way and insert information such as relevant parameter.
Step 204: user terminal is ordered the channel information or the business tine that provide in the business guide, and the concrete mode of ordering is to realize easily with ordering the management of key afterwards, repeats no more here.
Step 205: user terminal receives broadcasting/packet service and plays to the user by the broadcast/group broadcast network.Here, business tine provides in the process and generally to need encrypt business tine etc.
Step 206: the user watches the corresponding business content by user terminal in radio network.
Step 207: user terminal detect the broadcast channel quality be lower than first threshold the time, user terminal utilizes access address, the access way of the business on the unicast service platform identical with the business guide related service in the business guide of the broadcasting/packet service that obtains in the step 202 and inserts information such as relevant parameter, set up the carrying of unicast networks earlier, carry out the foundation of the setup process of RTSP then with the unicast service platform.So that switch fast.The first threshold of channel quality can be according to the signal power of broadcast/group broadcast network, set as signal power, think when being lower than the setting power threshold value that current broadcast/group broadcast network channel is second-rate, the broadcasting/packet service that is received also can be relatively poor, be not suitable for watching, user terminal determines whether to trigger the RTSP link that is established to the unicast service platform by the signal strength signal intensity that detects current broadcast/multicast network signal.The first threshold of channel quality also can be set according to the packet loss size that user terminal receives packet, when packet loss exceeds preset threshold, think that promptly the channel quality of current broadcast/group broadcast network is relatively poor, user terminal has determined whether packet loss by the sequence number that detects current reception packet, and further determines packet loss.When the channel quality of confirming current broadcast/group broadcast network is relatively poor, user terminal is according to the information such as access address, access way and access relevant parameter of the business on the unicast service platform identical with the business guide related service that obtains, set up RTSP link with the unicast service platform by unicast networks, though this RTSP link is set up, not professional transmission.
After the RTSP link establishment, user terminal can point out the user whether to switch to related service on the unicast service platform, selects whether to trigger the switching command that generates the business on the unicast service platform identical with the business guide related service that switches to by the user; Automatically do not trigger when perhaps, after surpass setting duration, receiving the switching command of relevant unicast service of user's input; Perhaps, according to detected current channel quality, when being lower than second threshold value, automatically trigger the switching command that generates the business on the unicast service platform identical that switches to the business guide related service, wherein, the channel quality that this second threshold value is indicated is lower than the channel quality that first threshold indicates, and the channel quality that this second threshold value is indicated means that user terminal can not receive the broadcasting/packet service that can watch.
Step 208: when receiving the order that switches to the related service on the unicast service platform, the broadcast play that user terminal is directly sent out RTSP orders to the unicast service platform.
Step 209: the unicast service platform sends the business tine that described user terminal is asked to user terminal.Because when setting up the RTSP link, user terminal has been determined the access address of institute's requested service, the unicast service platform business tine that this moment, definite user terminal was asked, after receiving the play order, the unicast service platform judges whether the business tine that user terminal asks to play is real time business, as live program etc., if then current live data is sent to user terminal by the RTSP link, if not then according to the moment of described play command initiation and the definite starting point of playing the unicast service content of business guide tabulation of described broadcasting/packet service place channel, and from the data of described starting point to user terminal unicast traffic content.Owing to be among the present invention automatically for user's service switchover, therefore, the unicast service that is switched on the unicast service platform should be the business identical with broadcasting/packet service, though be identical business, but need determine to switch to the unicast service platform when, with the content of determining that the user has watched, the business tine that last user has watched thereby the business tine that allows the unicast service platform be provided can continue.Therefore, the unicast service platform needs to send the moment of play order or send the moment of play order and the business guide tabulation of broadcasting/packet service place channel according to user terminal according to receiving user terminal, determines the initial moment of the business tine that send to user terminal.For example, the moment that receives the play order is that 13:45 divides 250 milliseconds, and tabulate by the business guide of the current broadcasting/packet service of user terminal, the current broadcasting/packet service of user terminal begins to broadcast from 13:30, then determine the business tine starting point that sends to user terminal and be 15 fens 250 milliseconds, thereby determine the start frame of the business tine that sends to user terminal, thereby begin to send the data of business tine from determined start frame to user terminal.For programme televised live, because its real-time is stronger, the unicast service platform will directly obtain the data of current business tine, send to user terminal.Because user terminal of the present invention is when carrying out the business switching, in advance and the unicast service platform set up the RTSP link, only by sending the broadcast that RTSP play order can realize the business tine that user terminal is asked, therefore, even real time business content, it is also shorter that the business of finishing is switched the required time, can cause losing of business tine hardly.
Step 210: user terminal is play the business tine of the unicast service platform that receives.
For further optimizing technical scheme of the present invention, the changing method of unicast service of the present invention is further comprising the steps of:
Step 211: when user terminal is play the business tine of unicast service platform, detect the channel quality of broadcast/group broadcast network, when the signal of broadcast/group broadcast network is enough good, some unicast service contents of user terminal buffer memory, and notify the user to switch to and watch the corresponding business content in the broadcast/group broadcast network.
Step 211: when the affirmation that receives the user switched to the order of broadcast/group broadcast network, user terminal sent stop or the pause order of RTSP by RTSP chain road direction unicast service platform, with the broadcast of the business tine that stops the unicast service platform.
Step 212: user terminal receives the corresponding business content on the broadcasting/packet service platform in the broadcast/group broadcast network, plays.
Fig. 3 is a kind of composition structural representation of the switching device shifter of unicast service of the present invention, as shown in Figure 3, the switching device shifter of unicast service of the present invention comprises detecting unit 30, judging unit 31, RTSP link establishment unit 32, switching command trigger element 33, play command initiation unit 34 and receiving element 35, wherein, detecting unit 30 is used to detect the channel quality of the current broadcasting/packet service that receiving element 35 received; The index of channel quality can be a signal strength signal intensity, whether reaches setting threshold as the power of detection signal, and perhaps, the index of channel quality is the data packet loss that receives data, and when packet loss was big, current channel quality was relatively poor.Judging unit 31 is used to judge whether the channel quality that detecting unit 30 detects is lower than first threshold, triggers RTSP link establishment unit 32 when being; When the broadcast/group broadcast network signal is relatively poor, triggers RTSP link establishment unit 32 and set up the RTSP link, for the related service that switches on the unicast service platform is prepared to the unicast service platform.RTSP link establishment unit 32 is used for the unicast service identical with current broadcast/multicast service on the unicast service platform initiated the process of setting up of RTSP link, and triggers switching command trigger element 33 after the RTSP link establishment is finished.Switching command trigger element 33 is used for triggering the switching command that switches to described unicast service after the foundation of described RTSP link is finished.The mode that switching command trigger element 33 triggers the switching command that generates described unicast service is: surpass at receiving element 35 and set the switching command that triggers described unicast service when duration does not receive the switching command of described unicast service automatically; Perhaps, trigger the switching command of described unicast service automatically when judging unit 31 determines that current channel quality is lower than second threshold value, the channel quality that second threshold value is wherein indicated is lower than the channel quality that first threshold indicates.The RTSP link that play command initiates to be set up by RTSP link establishment unit 32 when being used to receive the switching command of described unicast service unit 34 is directly initiated the broadcast play order to described unicast service.Receiving element 35 is used for receiving described unicast service by the RTSP link that described RTSP link establishment unit is set up, and receives business tines such as broadcasting/packet service and unicast service.
Fig. 4 forms structural representation for the another kind of the switching device shifter of unicast service of the present invention, as shown in Figure 4, the switching device shifter of unicast service of the present invention also comprises: Tip element 36 is used for whether the prompting user switches to described unicast service after the foundation of RTSP link is finished in RTSP link establishment unit 32; Switching command trigger element 33 triggers when receiving element 35 receives the user according to the switching command of the described unicast service of Tip element 36 suggestion contents inputs, and the receiving element 35 of this moment receives the switching command of the described unicast service of user's input simultaneously.Device shown in Figure 4 is optimizing structure of device shown in Figure 3.
When receiving element 35 receives broadcasting/packet services or receive the information of obtaining access address, access way and the access parameter of described unicast service before the broadcasting/packet service.The broadcasting/packet service platform is being notified to receiving element 35 with the relevant access information of above-mentioned unicast service when receiving element 35 sends the business guide of broadcasting/packet services, or by special-purpose access information notification message notice receiving element 35.
The switching device shifter of unicast service of the present invention is applicable in the user terminal.
After the unicast service platform receives the play order of play command initiation unit 34, the unicast service platform judges whether the described unicast service that request is play is real time business, if then current live data is sent to described receiving element, if not then the business guide tabulation of the moment of initiating according to described play command and described broadcasting/packet service place channel is determined described unicast service and play the starting point of described unicast service, and send the data of described unicast service to described receiving element from described starting point.The unicast service platform comprises business platform in the Wimax system, the business platform in the HSPA system, the business platform in the LTE system; The platform of carrying broadcasting/packet service comprises business platform in the DVB-H system, the business platform in the CMMB system, the business platform in the TMMB system, the business platform in the MBMS system.
Those skilled in the art are to be understood that, the switching device shifter of unicast service of the present invention is for the changing method of realizing unicast service shown in Figure 2 designs, and the realization function of the each processing unit in Fig. 3, the device shown in Figure 4 can be understood with reference to the associated description in the method shown in Figure 2.The function of each unit can realize by the program that runs on the processor in the switching device shifter of unicast service of the present invention, also can realize by concrete logical circuit.
The present invention can realize fast that the business from the broadcast/group broadcast network switches to the business in the unicast networks, for the user, the time that current business tine is interrupted is quite short, can not have influence on the continuity of whole service content, promote user's experience greatly, improved the service quality that the whole service content provides.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.

Claims (10)

1. the changing method of a unicast service is characterized in that, comprising:
When being in channel quality that portable terminal in the broadcasting/packet service detects current broadcast/multicast and being lower than first threshold, with the current broadcast/multicast service identical unicast service of described portable terminal on the unicast service platform initiated the process of setting up of real time streaming transport protocol RTSP link, and triggers the switching command that switches to described unicast service after described RTSP link establishment is finished; And
When receiving the switching command of described unicast service, described portable terminal is directly initiated the play command to described unicast service, and receives described unicast service by described RTSP link.
2. method according to claim 1 is characterized in that, described method also comprises:
When described portable terminal receives broadcasting/packet service or receive the information of obtaining access address, access way and the access parameter of described unicast service before the broadcasting/packet service.
3. method according to claim 1 is characterized in that, triggers the switching command that switches to described unicast service, is specially:
Whether the prompting user switches to described unicast service, triggers the switching command of described unicast service by the user, or surpasses not set when duration receives the switching command of described unicast service and trigger automatically; Perhaps, when being lower than second threshold value, triggers current channel quality the switching command of described unicast service automatically.
4. method according to claim 1 is characterized in that, described method also comprises:
After receiving described play command, described unicast service platform judges whether the described unicast service that request is play is real time business, if then current live data is sent to described portable terminal, if not then the business guide tabulation of the moment of initiating according to described play command and described broadcasting/packet service place channel is determined described unicast service and play the starting point of described unicast service, and send the data of described unicast service to described portable terminal from described starting point.
5. method according to claim 1 is characterized in that, described channel quality comprises the height of signal strength signal intensity, the size of packet packet loss.
6. the switching device shifter of a unicast service is characterized in that, comprising:
Detecting unit is used to detect the channel quality of the current broadcasting/packet service that receiving element receives;
Judging unit is used to judge whether the channel quality that described detecting unit detects is lower than first threshold, triggers RTSP link establishment unit when being;
RTSP link establishment unit is used for the unicast service identical with current broadcast/multicast service on the unicast service platform initiated the process of setting up of real time streaming transport protocol RTSP link, and triggers the switching command trigger element after described RTSP link establishment is finished;
The switching command trigger element is used to trigger the switching command that switches to described unicast service;
Play command is initiated the unit, and the RTSP link that is used for being set up by described RTSP link establishment unit when receiving the switching command of described unicast service is directly initiated the play command to described unicast service; And
Receiving element is used for receiving described unicast service by the RTSP link that described RTSP link establishment unit is set up, and receives broadcasting/packet service.
7. device according to claim 6 is characterized in that, when described receiving element receives broadcasting/packet service or receive the information of obtaining access address, access way and the access parameter of described unicast service before the broadcasting/packet service.
8. device according to claim 6 is characterized in that, described device also comprises:
Tip element is used for whether the prompting user switches to described unicast service after the foundation of RTSP link is finished in described RTSP link establishment unit; When described receiving element receives the user according to the switching command of the described unicast service of described Tip element suggestion content input, trigger described switching command trigger element.
9. device according to claim 6 is characterized in that, described switching command trigger element surpass to be set the switching command that triggers described unicast service when duration does not receive the switching command of described unicast service automatically at described receiving element; Perhaps, when determining that current channel quality is lower than second threshold value, triggers described judging unit the switching command of described unicast service automatically.
10. device according to claim 6, it is characterized in that, after described unicast service platform receives the play command of described play command initiation unit, described unicast service platform judges whether the described unicast service that request is play is real time business, if then current live data is sent to described receiving element, if not then the business guide tabulation of the moment of initiating according to described play command and described broadcasting/packet service place channel is determined described unicast service and play the starting point of described unicast service, and send the data of described unicast service to described receiving element from described starting point.
CN200910078806A 2009-03-03 2009-03-03 Switching method and device of unicast service Pending CN101827306A (en)

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Cited By (22)

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CN111447572A (en) * 2019-01-16 2020-07-24 成都鼎桥通信技术有限公司 Multicast monitoring method and device in MCPTT system
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CN112399633A (en) * 2019-08-12 2021-02-23 成都鼎桥通信技术有限公司 Unicast bearer establishment method, unicast bearer establishment device and storage medium
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CN103313199B (en) * 2012-03-13 2016-05-04 上海交通大学 Subscriber equipment, multicast and broadcast Mediation Device and radio transmission point
CN107872768A (en) * 2012-05-04 2018-04-03 高通股份有限公司 On demand in multicast broadcast multimedia service(MBMS)Smooth transition is carried out between unicast services
CN102769830A (en) * 2012-07-24 2012-11-07 福建星网锐捷网络有限公司 Multicast message sending method, multicast message sending device and network device
CN102769830B (en) * 2012-07-24 2016-01-27 福建星网锐捷网络有限公司 Multicast message sending method and device, the network equipment
WO2014114343A1 (en) * 2013-01-25 2014-07-31 Nokia Solutions And Networks Oy Transmitting content to devices
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CN105338549A (en) * 2014-08-11 2016-02-17 华为技术有限公司 Method and equipment for determining multimedia data sending mode
CN104320717A (en) * 2014-10-13 2015-01-28 四川长虹电器股份有限公司 Program source conversion method and terminal television set
CN104320717B (en) * 2014-10-13 2018-05-01 四川长虹电器股份有限公司 A kind of method and terminal televisions for changing program source
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CN106549916A (en) * 2015-09-18 2017-03-29 中兴通讯股份有限公司 Multicast transmission method, apparatus and system
WO2017045528A1 (en) * 2015-09-18 2017-03-23 中兴通讯股份有限公司 Method, device and system for multicast transmission
CN106791959A (en) * 2015-11-19 2017-05-31 中国电信股份有限公司 A kind of method by multicast transmission HLS Streaming Medias, system and terminal
CN107820218B (en) * 2016-09-14 2020-06-26 华为技术有限公司 Method and equipment for setting message transmission mode
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CN107820218A (en) * 2016-09-14 2018-03-20 华为技术有限公司 The establishing method and equipment of message transmissions mode
CN106879059B (en) * 2017-02-22 2021-06-18 新华三技术有限公司 Method and device for adjusting transmitting power
CN106879059A (en) * 2017-02-22 2017-06-20 新华三技术有限公司 A kind of transmission power adjustment method and device
CN109218123A (en) * 2017-07-06 2019-01-15 成都鼎桥通信技术有限公司 The method and device of multicast switching unicast
CN109547944A (en) * 2017-09-21 2019-03-29 华为技术有限公司 The method and device of data transmission
CN107659853B (en) * 2017-11-03 2019-07-05 中广热点云科技有限公司 A kind of adaptive stream media live streaming control system
CN107659853A (en) * 2017-11-03 2018-02-02 中广热点云科技有限公司 A kind of live control system of adaptive stream media
CN108650640A (en) * 2018-03-05 2018-10-12 海能达通信股份有限公司 Cluster communication method and relevant device
WO2019174588A1 (en) * 2018-03-14 2019-09-19 Telefonaktiebolaget Lm Ericsson (Publ) Service quality enhancement about consumption report-based mood switching
CN111447572B (en) * 2019-01-16 2022-09-23 成都鼎桥通信技术有限公司 Multicast monitoring method and device in MCPTT system
CN111447572A (en) * 2019-01-16 2020-07-24 成都鼎桥通信技术有限公司 Multicast monitoring method and device in MCPTT system
CN112073918A (en) * 2019-06-10 2020-12-11 成都鼎桥通信技术有限公司 Video group calling method and device in broadband trunking communication
CN112399633A (en) * 2019-08-12 2021-02-23 成都鼎桥通信技术有限公司 Unicast bearer establishment method, unicast bearer establishment device and storage medium
CN112399633B (en) * 2019-08-12 2023-01-31 成都鼎桥通信技术有限公司 Unicast bearer establishment method, unicast bearer establishment device and storage medium
CN110895873A (en) * 2019-11-25 2020-03-20 杭州海兴电力科技股份有限公司 Carrier meter reading method, central coordinator and system
CN113498024A (en) * 2020-04-03 2021-10-12 维沃移动通信有限公司 Transmission channel changing method, access network equipment and core network equipment
CN113498024B (en) * 2020-04-03 2023-03-24 维沃移动通信有限公司 Transmission channel changing method, access network equipment and core network equipment
WO2021233135A1 (en) * 2020-05-20 2021-11-25 展讯通信(上海)有限公司 Access control method and apparatus, and storage medium and terminal

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