CN110351570A - Net cast method and system under 5G network - Google Patents
Net cast method and system under 5G network Download PDFInfo
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- CN110351570A CN110351570A CN201910591580.9A CN201910591580A CN110351570A CN 110351570 A CN110351570 A CN 110351570A CN 201910591580 A CN201910591580 A CN 201910591580A CN 110351570 A CN110351570 A CN 110351570A
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2387—Stream processing in response to a playback request from an end-user, e.g. for trick-play
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
- H04N21/26216—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints involving the channel capacity, e.g. network bandwidth
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
Abstract
The present invention provides net cast method and system under a kind of 5G network.The described method includes: UE notifies its built in video application pause to play and discharge resource according to the request, and establishes session with SMF when SMF has recognized new session and established request;UE is interacted by SMF with gNB to complete dedicated channel resource release;UE sends resource to the application of its built in video and has restored message when detecting that the resource being preempted has been discharged;UE is interacted by SMF with gNB to complete dedicated channel resource reconstruction;UE built in video, which is applied, to be continued to play video content from pause point by Video timeshift server.When having voice or video call enters, energy automatic alignment suspend in the programme televised live of broadcasting and restore automatically after the call has ended the present invention;Moreover, being released to the air-link resources that live video is distributed automatically after programme televised live pause, the vacant of radio resource and waste are avoided.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to net cast method and a kind of 5G net under a kind of 5G network
Video living transmission system under network.
Background technique
Currently, user is when using mobile phone watching video programme televised live, if encountering the voice or video call for having incoming call,
Usually there is the following two kinds way:
The first way is that user does not execute pausing operation, direct incoming call answering to video program being played on.At this time
There will be two kinds of situations:
1A) programme televised live continues to play in the background, and both call sides will hear the voice and programme televised live of other side simultaneously
Middle played sound.This can interfere both call sides.
1B) APP (application program, the abbreviation of the Application) automatic pause of programme televised live plays, and ties in call
Restore to play after waiting user to click the Play button after beam.No matter programme televised live is to play to user from current time point at this time,
Or user is played to from pause time point using time shift manner, since APP pause control and voice call control are mutually indepedent, because
This will hold over the radio resource of cordless communication network side.It results in waste of resources.When especially extended telephone conversation will cause long
Between radio resource it is vacant.
Second of way is that user receives calls again after suspending broadcasting.Also there will be two kinds of situations at this time:
2A) can force to show in screen front end due to voice or video call prompting interface under normal circumstances, this just will
The interface of video APP is as backstage.It receives calls if the user desired that first suspending picture and returning call prompt interface, it will certainly
The delay to receive calls is caused, it is not only inconvenient, and may cause and miss important incoming call.
2B) and aforementioned 1B) equally, it will cause the vacant of radio resource and waste.
Summary of the invention
The present invention is completed in order at least partly solve the technical problems existing in the prior art.
Solving technical solution used by present invention problem is:
The present invention provides a kind of net cast method under 5G network comprising:
The video program of live broadcast is sent in UE (UserEquipment, user terminal) by Living streaming server
Set Video Applications and Video timeshift server;
The UE built in video application plays video program;
New session, which has been recognized, in SMF (Session Management Function, conversation management functional) establishes request
When, UE notifies its built in video application pause to play and discharge resource according to the request, and establishes session with SMF;
UE is by SMF and gNB (base station 5G Node B, 5G) interaction to complete dedicated channel resource release;
UE sends resource to the application of its built in video and has restored message when detecting that the resource being preempted has been discharged;
UE is interacted by SMF with gNB to complete dedicated channel resource reconstruction;
UE built in video, which is applied, to be continued to play video content from pause point by Video timeshift server.
Optionally, when SMF has recognized new session and established request, UE notifies the application of its built in video temporary according to the request
Break and put and discharge resource, and establishes session with SMF, comprising:
SMF sends session establishment request to current UE when having recognized new session foundation request direction current UE;
UE according to session establishment request in context parameters identify and will be produced with the Video Applications that are currently running
Raw resource contention, and the Video Applications for currently occupying these resources is notified to temporarily free up resource;
UE built in video application pause plays and discharges resource;
UE returns to session establishment success message to SMF.
Optionally, the UE is interacted by SMF with gNB to complete dedicated channel resource release, comprising:
UE sends modification session request to SMF, to modify the data connection session status established before for broadcasting video
To hang up;
For SMF after receiving modification session request, notice gNB discharges corresponding video dedicated data transmission channel resource;
UE is interacted with gNB, to complete dedicated channel resource release.
Optionally, the UE built in video is applied after having executed pause and having played and discharge resource, the net cast side
Method further include:
UE built in video is applied after having executed pause and having played and discharge resource, and current video business contexts message is sent out
Give NEF (Network Exposure Function, network opening function);
NEF is after receiving current video business contexts message, when requesting video to corresponding Living streaming server
Move the suction parameter of server;
Living streaming server passes through with Video timeshift server interacts the claim for completing the Video Applications built in corresponding UE
Setting;
Living streaming server returns to the suction parameter of Video timeshift server to NEF;
NEF returns to the suction parameter of Video timeshift server to the application of UE built in video.
Optionally, the current video business contexts message includes: the session id, currently playing of current video application layer
The identifier of video content, current hang time point, and the entrance of the current Living streaming server that service is provided
Location.
Optionally, the UE is interacted by SMF with gNB to complete dedicated channel resource reconstruction, comprising:
UE sends modification session request to SMF, to modify the data connection session status established before for broadcasting video
It is ready;
After SMF receives modification session request, notice gNB rebuilds corresponding video dedicated data transmission information resources;
UE is interacted with gNB, to complete dedicated channel resource reconstruction.
Optionally, the UE built in video, which is applied, continues to play video content from pause point by Video timeshift server,
Include:
UE built in video is applied to Video timeshift server and initiates video content request;
Video timeshift server is applied from pause point to UE built in video and sends video content;
UE built in video, which is applied, to be continued to play video content from pause point.
Optionally, in the step of being interacted with gNB by SMF to complete dedicated channel resource release in UE, UE and gNB difference
Save the context parameters of discharged resource;
It is interacted with gNB by SMF to complete in the step of dedicated channel resource is rebuild in UE, UE and gNB utilize previously guarantor
The context parameters deposited rebuild wireless data transmission channel.
The present invention also provides video living transmission systems under a kind of 5G network comprising: Living streaming server, Video timeshift clothes
Be engaged in device, UE and SMF;UE built in video application;Wherein,
Living streaming server is used to for the video program of live broadcast to be sent to the application of UE built in video and Video timeshift
Server;
UE built in video is applied for playing the video program;
When SMF has recognized new session and established request, UE is used to notify its built in video application pause according to the request
Resource is played and discharged, and establishes session with SMF;
UE is also used to interact by SMF with gNB to complete dedicated channel resource release;
UE is also used to send resource to the application of its built in video and restore when detecting that the resource being preempted has discharged
Message;
UE is also used to interact by SMF with gNB to complete dedicated channel resource reconstruction;
UE built in video application is also used to continue by Video timeshift server from pause point to play video content.
Optionally, when SMF has recognized new session and established request, UE is used to notify its built in video to answer according to the request
It is played with pause and discharges resource, and establish session with SMF, specifically:
SMF is requested when having recognized new session foundation request direction current UE for sending session establishment to current UE;
Context parameters of the UE in being requested according to session establishment are identified and will be answered with the video being currently running
With generating resource contention, and notify that currently occupying the Video Applications of these resources temporarily frees up resource;
UE built in video application is also used to suspend broadcasting and discharges resource;
UE is also used to return to session establishment success message to SMF.
Optionally, the UE is also used to interact by SMF with gNB to complete dedicated channel resource release, specifically:
UE is also used to send modification session request to SMF, to modify the data connection meeting established before for broadcasting video
Speech phase is to hang up;
SMF is also used to after receiving modification session request, and notice gNB discharges corresponding video dedicated data transmission channel money
Source;
UE is also used to interact with gNB, to complete dedicated channel resource release.
Optionally, the video living transmission system further include: NEF;
UE built in video is applied after having executed pause and having played and discharge resource, is also used to current video business contexts
Message is sent to NEF;
NEF is after receiving current video business contexts message, for requesting to regard to corresponding Living streaming server
The suction parameter of frequency time-shifted service device;
Living streaming server is also used to interact with Video timeshift server, to complete the Video Applications built in corresponding UE
Claim setting;
Living streaming server is also used to return the suction parameter of Video timeshift server to NEF;
NEF is also used to return the suction parameter of Video timeshift server to the application of UE built in video.
Optionally, the current video business contexts message includes: the session id, currently playing of current video application layer
The identifier of video content, current hang time point, and the entrance of the current Living streaming server that service is provided
Location.
Optionally, the UE is also used to interact by SMF with gNB to complete dedicated channel resource reconstruction, specifically:
UE is also used to send modification session request to SMF, to modify the data connection meeting established before for broadcasting video
Speech phase is ready;
After SMF is also used to receive modification session request, notice gNB rebuilds corresponding video dedicated data transmission information money
Source;
UE is also used to interact with gNB, to complete dedicated channel resource reconstruction.
Optionally, the UE built in video application is also used to continue by Video timeshift server from pause point to play video
Content, specifically:
UE built in video application is also used to initiate video content request to Video timeshift server;
Video timeshift server, which is also used to apply to UE built in video from pause point, sends video content;
UE built in video application is also used to continue from pause point to play video content.
Optionally, during interaction with gNB by SMF to complete dedicated channel resource release in UE, UE and gNB are also used
In the context parameters for saving discharged resource respectively;
During UE is interacted with gNB by SMF and rebuild with completing dedicated channel resource, UE and gNB are also used to utilize
The context parameters being previously saved rebuild wireless data transmission channel.
The utility model has the advantages that
In the present invention, UE and SMF, gNB, Living streaming server and Video timeshift server are cooperated, when there is voice
Or video call is when entering, automatic alignment the programme televised live of broadcasting suspend and it is automatic after the call has ended restore, improve
User experience;
Moreover, being released to the air-link resources that live video is distributed automatically after programme televised live pause, nothing is avoided
The vacant and waste of line resource.
Detailed description of the invention
Fig. 1 is the flow chart of net cast method under a kind of 5G network that the embodiment of the present invention 1 provides;
Fig. 2 is the flow chart of net cast method under another 5G network that the embodiment of the present invention 1 provides;
Fig. 3 is the structural block diagram of video living transmission system under a kind of 5G network that the embodiment of the present invention 2 provides.
In figure: 100- Living streaming server;200- Video timeshift server;300-UE;301-UE built in video
Using;400-SMF;500-gNB;600-NEF.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawings and examples to this
Invention is described in further detail.
Embodiment 1:
As the one aspect of the present embodiment, a kind of net cast method under 5G network is provided.As shown in Figure 1, the view
Frequency live broadcasting method includes the following steps S100 to S700.
S100. the video program of live broadcast is sent to the application of UE built in video and Video timeshift by Living streaming server
Server;
The S200.UE built in video application plays video program;
S300. when SMF has recognized new session and established request, UE notifies its built in video application pause according to the request
Resource is played and discharged, and establishes session with SMF;
S400.UE is interacted by SMF with gNB to complete dedicated channel resource release;
S500.UE sends resource to the application of its built in video and has restored when detecting that the resource being preempted has been discharged
Message;
S600.UE is interacted by SMF with gNB to complete dedicated channel resource reconstruction;
S700.UE built in video, which is applied, to be continued to play video content from pause point by Video timeshift server.
In the present embodiment, UE and SMF, gNB, Living streaming server and Video timeshift server are cooperated, when there is language
When sound or video call enter, automatic alignment suspend in the programme televised live of broadcasting and restore automatically after the call has ended, changes
It has been apt to user experience;Moreover, being released to the air-link resources that live video is distributed automatically after programme televised live pause, avoid
The vacant and waste of radio resource.Video Applications, that is, video APP (abbreviation of Application), refer in intelligent terminal
The video class application software installed on (such as smart phone), such as existing Tencent's video, iqiyi.com, youku.com's video, Sohu's view
Frequency and Baidu's video etc..
In the step s 100, the video program of live broadcast is sent to UE built in video simultaneously and answered by Living streaming server
With with Video timeshift server, in step s 200, UE built in video application plays video program, so that user passes through view
Frequency direct broadcast server watches the video program.As for Video timeshift server, the video that Living streaming server is sent is received
Program, in order to provide Video timeshift function, since Video timeshift service belongs to existing common technology, the present invention is no longer superfluous herein
It states.
Step S300 specifically comprises the following steps S301 to S304.
S301.SMF sends session establishment to current UE and asks when having recognized new session foundation request direction current UE
It asks, has session context parameter in session establishment request, such as conversation type is video calling or voice communication, still
Data communication etc.;
S302.UE according to session establishment request in context parameters identify and will be answered with the video being currently running
With generating resource contention (such as display screen, loudspeaker etc.), and the Video Applications for currently occupying these resources is notified temporarily to release
Put resource (such as by modes such as pause broadcastings);
S303.UE built in video application pause plays and discharges resource;
S304.UE returns to session establishment success message to SMF, then SMF and UE establish session.Then, extended meeting after SMF continues
Words processing.
Step S400 specifically comprises the following steps S401 to S403.
S401.UE sends modification session request to SMF, to modify the data connection session established before for broadcasting video
State is to hang up;
For S402.SMF after receiving modification session request, notice gNB discharges corresponding video dedicated data transmission channel money
Source, specifically can be via AMF (Access and Mobility Management Function, access and travelling performance management function
Can) Lai Tongzhi gNB;
S403.UE is interacted with gNB, to complete dedicated channel resource release.
Between step S400 and step S500, it may also include the steps of S451 to S455.
S451.UE built in video is applied after having executed pause and having played and discharge resource, by current video business contexts
Message is sent to NEF;
S452.NEF requests to regard after receiving current video business contexts message, to corresponding Living streaming server
The suction parameter of frequency time-shifted service device;
S453. Living streaming server, which passes through to interact with Video timeshift server, completes the Video Applications built in corresponding UE
Claim setting;
S454. Living streaming server returns to the suction parameter of Video timeshift server to NEF;
S455.NEF returns to the suction parameter of Video timeshift server to the application of UE built in video.Then, UE built in video
Using ready state is entered, the instruction for restarting broadcasting is waited.
In step S451, current video business contexts message includes: the session id of current video application layer, currently broadcasts
The time point of the identifier of the video content put, current hang, and the entrance of the current Living streaming server that service is provided
Address.Correspondingly, in step S452, NEF can be according to the application layer conversation ID from UE to corresponding Living streaming server
Request the suction parameter of Video timeshift server.The suction parameter of Video timeshift server includes entry address and access password code
Deng.
In the present embodiment, the suction parameter for obtaining Video timeshift server is for UE built in video in subsequent step S700
Using can search out corresponding Video timeshift server, and continue to play in video from pause point by Video timeshift server
Hold.
In step S500, UE, which detects that the resource being preempted has discharged, indicates that resource contention event has released, this
It may be to have been completed etc. caused by reasons as voice or video call.
Step S600 specifically comprises the following steps S601 to S603.
S601.UE sends modification session request to SMF, to modify the data connection session established before for broadcasting video
State is ready;
After S602.SMF receives modification session request, notice gNB rebuilds corresponding video dedicated data transmission information resources,
Specifically gNB can be notified via AMF;
S603.UE is interacted with gNB, to complete dedicated channel resource reconstruction.
Step S700 specifically comprises the following steps S701 to S703.
S701.UE built in video is applied to Video timeshift server and initiates video content request;
S702. Video timeshift server is applied from pause point to UE built in video and sends video content;
S703.UE built in video, which is applied, to be continued to play video content from pause point.
In abovementioned steps S400, UE and gNB save the context parameters of discharged resource respectively, including frequency and when
Between piece etc. distribution, bandwidth and modulation system etc..In abovementioned steps S600, UE and gNB utilize the context being previously saved
Reconstruction wireless data transmission channel.Wherein the distribution of frequency and timeslice etc. can change, but bandwidth remains unchanged.
As the other side of the present embodiment, net cast method under another 5G network is provided.As shown in Fig. 2, institute
Stating net cast method includes the following steps (0) to step (23).
Step (0) user (application of UE built in video) watches the video program of live broadcast by Living streaming server;
Living streaming server sends video program to Video timeshift server simultaneously, in order to provide Video timeshift function.
Step (1) .SMF has recognized new session and has established request direction current UE.
Step (2) .SMF sends session establishment request to current UE, wherein having session context parameter, such as conversation class
Type is video calling or voice communication or data communication etc..
Step (3) .UE according to session establishment request in context parameters identify will be with the view that is currently running
Frequency application generates resource contention, such as display screen, loudspeaker etc..
The Video Applications that step (4) .UE notice currently occupies these resources temporarily free up resource, such as are played by pause
Etc. modes.
Step (5) .UE built in video application pause plays and discharges resource.Certainly, even if Video Applications do not discharge actively
Resource can also be preempted resource under normal circumstances.
Step (6) .UE returns to session establishment success message to SMF.
Step (7) .SMF continues subsequent session processing.
Step (8) .UE sends " modification session " request to SMF, is connected before to play the data that video is established with modifying
Connecing session status is " hang-up ".
Step (9) .SMF discharges corresponding video exclusive data after receiving modification session request, via AMF notice gNB
Transmission channel resources
Step (10) .UE is interacted with gNB, to complete dedicated channel resource release.
Step (11) .UE built in video is applied after having executed pause and having played and discharge resource, immediately by current video industry
Business context message is sent to NEF.Current video business contexts message includes: the session id, current of current video application layer
The time point of the identifier of the video content of broadcasting, current hang, and the current Living streaming server for providing service enter
Port address etc..
Step (12) .NEF is after receiving current video business contexts message, according to the application layer conversation ID from UE
To the suction parameter of corresponding Living streaming server request Video timeshift server comprising entry address and access password code
Deng.
Step (13) Living streaming server passes through the video for interacting and completing built in corresponding UE with Video timeshift server and answers
Claim setting.
Step (14) Living streaming server returns to the suction parameter of Video timeshift server to NEF.
Step (15) .NEF returns to the suction parameter of Video timeshift server to the application of UE built in video.
Step (16) .UE built in video, which is applied, enters ready state, waits the instruction for restarting broadcasting.
Step (17) .UE detects that the resource being preempted has discharged, i.e. resource contention event has released, this may be
It has been completed etc. caused by reasons as voice or video call.
Step (18) .UE sends resource to the application of its built in video and has restored message.
Step (19) .UE sends " modification session " request to SMF, is connected before to play the data that video is established with modifying
Connecing session status is " ready ".
After step (20) .SMF receives modification session request, corresponding video exclusive data is rebuild via AMF notice gNB and is passed
Defeated information resources.
Step (21) .UE is interacted with gNB, to complete dedicated channel resource reconstruction.
Step (22) .UE built in video is applied to Video timeshift server and initiates video content request.
Step (23) Video timeshift server is applied from pause point to UE built in video and sends video content, so that UE
Built in video, which is applied, to be continued to play video content from pause point.
In conclusion SMF makes in UE when having recognized new session and having established request in technical solution provided in this embodiment
It sets Video Applications pause to play and discharge resource, so that automatic alignment is in the straight of broadcasting when having voice or video call enters
Program is broadcast to be suspended;After detecting that the resource being preempted has discharged, UE built in video is applied to be taken UE by Video timeshift
Business device continues to play video content from pause point, to restore broadcasting for video content automatically after voice or video call
It puts, improves user experience.
Moreover, UE is interacted with gNB by SMF to complete the release of dedicated channel resource and reconstruction, thus in programme televised live
Automatically it is released to the air-link resources that live video is distributed after pause, avoids the vacant of radio resource and waste.
Embodiment 2:
The present embodiment provides video living transmission systems under a kind of 5G network.As shown in figure 3, the video living transmission system includes:
Living streaming server 100, Video timeshift server 200, UE300 and SMF400;UE300 built in video applies 301.
Wherein, Living streaming server 100 is used to for the video program of live broadcast being sent to UE built in video using 301
With Video timeshift server 200;
UE built in video is using 301 for playing the video program;
When SMF400 has recognized new session and established request, UE300 is used to notify its built in video to answer according to the request
It is played with 301 pauses and discharges resource, and establish session with SMF400;
UE300 is also used to interact by SMF400 with gNB500 to complete dedicated channel resource release;
UE300 is when detecting that the resource being preempted has discharged, i.e., when resource contention event has released, be also used to
Its built in video has restored message using 301 transmission resources;
UE300 is also used to interact by SMF400 with gNB500 to complete dedicated channel resource reconstruction;
UE built in video is also used to continue by Video timeshift server 200 from pause point to play video content using 301.
In the present embodiment, UE300 and SMF400, gNB500, Living streaming server 100 and Video timeshift server 200
It cooperates, when having voice or video call enters, automatic alignment carries out pause in the programme televised live of broadcasting and ties in calling
Restore automatically after beam, improves user experience;Moreover, being released to the nothing that live video is distributed automatically after programme televised live pause
Wired link resource avoids the vacant of radio resource and waste.
When SMF400 has recognized new session and established request, UE300 is used to notify its built in video to answer according to the request
It is played with 301 pauses and discharges resource, and establish session with SMF400, specifically:
SMF400 is when having recognized new session foundation request direction current UE 300, for sending session to current UE 300
Request is established, session context parameter is had in session establishment request, such as conversation type is that video calling or voice are logical
Words or data communication etc.;
UE300 be used to being requested according to session establishment in context parameters identify will be with the video that is currently running
Resource contention (such as display screen, loudspeaker etc.) is generated using 301, and notifies the Video Applications for currently occupying these resources
301 temporarily free up resource (such as by modes such as pause broadcastings);
UE built in video is also used to suspend broadcasting and discharges resource using 301;
UE300 is also used to return to session establishment success message to SMF400, then SMF and UE establish session.Then, SMF400
It is also used to continue subsequent session processing.
UE300 is also used to interact by SMF400 with gNB500 to complete dedicated channel resource release, specifically:
UE300 is also used to send modification session request to SMF400, to modify the data established before for broadcasting video
Connecting session status is to hang up;
SMF400 is also used to after receiving modification session request, and notice gNB500 discharges corresponding video dedicated data transmission
Channel resource specifically can notify gNB via AMF;
UE300 is also used to interact with gNB500, to complete dedicated channel resource release.
As shown in figure 3, the video living transmission system further include: NEF600.
For UE built in video using 301 after having executed pause and having played and discharge resource, being also used to will be in current video business
Hereafter message is sent to NEF600;
NEF600 is used for after receiving current video business contexts message to corresponding Living streaming server 100
Request the suction parameter of Video timeshift server 200;
Living streaming server 100 is also used to interact with Video timeshift server 200, to complete the video built in corresponding UE
It is arranged using 301 claim;
Living streaming server 100 is also used to return the suction parameter of Video timeshift server 200 to NEF600;
The suction parameter that NEF600 is also used to return to Video timeshift server 200 using 301 to UE built in video.Then,
UE built in video enters ready state using 301, waits the instruction for restarting broadcasting.
In the present embodiment, the current video business contexts message for being sent to NEF600 includes: current video application layer
The time point of session id, the identifier of currently playing video content, current hang, and the net cast of current offer service
The entry address of server.Correspondingly, NEF600 can take according to the application layer conversation ID from UE300 to corresponding net cast
Business device 100 requests the suction parameter of Video timeshift server 200.The suction parameter of Video timeshift server 200 includes entrance
Location and access password code etc..
In the present embodiment, the suction parameter for obtaining Video timeshift server 200 is in order to which subsequent UE built in video is using 301
Corresponding Video timeshift server 200 can be searched out, and continues to play video from pause point by Video timeshift server 200
Content.
UE300 is also used to interact by SMF400 with gNB500 to complete dedicated channel resource reconstruction, specifically:
UE300 is also used to send modification session request to SMF400, to modify the data established before for broadcasting video
It is ready for connecting session status;
After SMF400 is also used to receive modification session request, notice gNB500 rebuilds corresponding video dedicated data transmission letter
Resource is ceased, specifically can notify gNB via AMF;
UE300 is also used to interact with gNB500, to complete dedicated channel resource reconstruction.
UE built in video is also used to continue by Video timeshift server 200 from pause point to play video content using 301,
Specifically:
UE built in video is also used to initiate video content request to Video timeshift server 200 using 301;
Video timeshift server 200 is also used to send video content from pause point using 301 to UE built in video;
UE built in video is also used to continue from pause point to play video content using 301.
In the present embodiment, interacted with gNB500 by SMF400 to complete the process of dedicated channel resource release in UE300
In, UE300 and gNB500 are also used to save the context parameters of discharged resource respectively, point including frequency and timeslice etc.
Match, bandwidth and modulation system etc.;
During UE300 interact with gNB500 by SMF400 to complete dedicated channel resource reconstruction, UE300 with
GNB500 is also used to rebuild wireless data transmission channel using the context parameters being previously saved.Wherein frequency and timeslice etc.
Distribution can change, but bandwidth remains unchanged.
In conclusion SMF400 makes when having recognized new session and having established request in technical solution provided in this embodiment
UE built in video plays using 301 pauses and discharges resource, so that automatic alignment is being broadcast when having voice or video call enters
The programme televised live put is suspended;For UE300 after detecting that the resource being preempted has discharged, UE built in video is logical using 301
It crosses Video timeshift server 200 to continue to play video content from pause point, thus automatic extensive after voice or video call
The broadcasting of multiple video content, improves user experience.
Moreover, UE300 is interacted with gNB500 by SMF400 to complete the release of dedicated channel resource and reconstruction, thus
It is released to the air-link resources that live video is distributed automatically after programme televised live pause, avoids the vacant and unrestrained of radio resource
Take.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (16)
1. a kind of net cast method under 5G network characterized by comprising
The video program of live broadcast is sent to UE built in video and applied and Video timeshift server by Living streaming server;
The UE built in video application plays video program;
When SMF has recognized new session and established request, UE notifies its built in video application pause to play and releases according to the request
Resource is put, and establishes session with SMF;
UE is interacted by SMF with gNB to complete dedicated channel resource release;
UE sends resource to the application of its built in video and has restored message when detecting that the resource being preempted has been discharged;
UE is interacted by SMF with gNB to complete dedicated channel resource reconstruction;
UE built in video, which is applied, to be continued to play video content from pause point by Video timeshift server.
2. net cast method according to claim 1, which is characterized in that recognized new session in SMF and established request
When, UE notifies its built in video application pause to play and discharge resource according to the request, and establishes session with SMF, comprising:
SMF sends session establishment request to current UE when having recognized new session foundation request direction current UE;
UE according to session establishment request in context parameters identify and will generate money with the Video Applications that are currently running
Source conflict, and the Video Applications for currently occupying these resources is notified to temporarily free up resource;
UE built in video application pause plays and discharges resource;
UE returns to session establishment success message to SMF.
3. net cast method according to claim 1, which is characterized in that the UE is interacted with gNB by SMF to complete
Dedicated channel resource release, comprising:
UE sends modification session request to SMF, to modify the data connection session status established before for broadcasting video as extension
It rises;
For SMF after receiving modification session request, notice gNB discharges corresponding video dedicated data transmission channel resource;
UE is interacted with gNB, to complete dedicated channel resource release.
4. net cast method according to claim 1, which is characterized in that the UE built in video, which is applied, to be executed temporarily
Break after putting and discharging resource, further includes:
UE built in video is applied after having executed pause and having played and discharge resource, and current video business contexts message is sent to
NEF;
NEF is after receiving current video business contexts message, to corresponding Living streaming server request Video timeshift clothes
The suction parameter of business device;
Living streaming server passes through with Video timeshift server interacts the claim setting for completing the Video Applications built in corresponding UE;
Living streaming server returns to the suction parameter of Video timeshift server to NEF;
NEF returns to the suction parameter of Video timeshift server to the application of UE built in video.
5. net cast method according to claim 4, which is characterized in that the current video business contexts message package
It includes: the time point of the session id of current video application layer, the identifier of currently playing video content, current hang, and work as
The entry address of the preceding Living streaming server that service is provided.
6. net cast method according to claim 1, which is characterized in that the UE is interacted with gNB by SMF to complete
Dedicated channel resource is rebuild, comprising:
UE sends modification session request to SMF, is before just to play the data connection session status that video is established to modify
Thread;
After SMF receives modification session request, notice gNB rebuilds corresponding video dedicated data transmission information resources;
UE is interacted with gNB, to complete dedicated channel resource reconstruction.
7. net cast method according to claim 1, which is characterized in that when the UE built in video application passes through video
Server is moved to continue to play video content from pause point, comprising:
UE built in video is applied to Video timeshift server and initiates video content request;
Video timeshift server is applied from pause point to UE built in video and sends video content;
UE built in video, which is applied, to be continued to play video content from pause point.
8. net cast method described in any one of -7 according to claim 1, which is characterized in that
In the step of UE is interacted with gNB by SMF to complete dedicated channel resource release, UE and gNB are saved discharged respectively
Resource context parameters;
In the step of UE interact with gNB by SMF to complete dedicated channel resource reconstruction, what UE and gNB utilization were previously saved
Context parameters rebuild wireless data transmission channel.
9. video living transmission system under a kind of 5G network characterized by comprising Living streaming server, Video timeshift server,
UE and SMF;UE built in video application;Wherein,
Living streaming server is used to for the video program of live broadcast to be sent to UE built in video and apply and Video timeshift service
Device;
UE built in video is applied for playing the video program;
When SMF has recognized new session and established request, UE is used to notify its built in video application pause to play according to the request
And resource is discharged, and establish session with SMF;
UE is also used to interact by SMF with gNB to complete dedicated channel resource release;
UE is also used to send resource to the application of its built in video and has restored to disappear when detecting that the resource being preempted has discharged
Breath;
UE is also used to interact by SMF with gNB to complete dedicated channel resource reconstruction;
UE built in video application is also used to continue by Video timeshift server from pause point to play video content.
10. video living transmission system according to claim 9, which is characterized in that
When SMF has recognized new session and established request, UE is used to notify its built in video application pause to play according to the request
And resource is discharged, and establish session with SMF, specifically:
SMF is requested when having recognized new session foundation request direction current UE for sending session establishment to current UE;
UE is identified for the context parameters in being requested according to session establishment and will be produced with the Video Applications being currently running
Raw resource contention, and the Video Applications for currently occupying these resources is notified to temporarily free up resource;
UE built in video application is also used to suspend broadcasting and discharges resource;
UE is also used to return to session establishment success message to SMF.
11. video living transmission system according to claim 9, which is characterized in that the UE is also used to hand over by SMF and gNB
Mutually to complete dedicated channel resource release, specifically:
UE is also used to send modification session request to SMF, to modify the data connection session shape established before for broadcasting video
State is to hang up;
SMF is also used to after receiving modification session request, and notice gNB discharges corresponding video dedicated data transmission channel resource;
UE is also used to interact with gNB, to complete dedicated channel resource release.
12. video living transmission system according to claim 9, which is characterized in that further include: NEF;
UE built in video is applied after having executed pause and having played and discharge resource, is also used to current video business contexts message
It is sent to NEF;
NEF is after receiving current video business contexts message, when for requesting video to corresponding Living streaming server
Move the suction parameter of server;
Living streaming server is also used to interact with Video timeshift server, to complete the claim of the Video Applications built in corresponding UE
Setting;
Living streaming server is also used to return the suction parameter of Video timeshift server to NEF;
NEF is also used to return the suction parameter of Video timeshift server to the application of UE built in video.
13. video living transmission system according to claim 12, which is characterized in that the current video business contexts message
It include: the time point of the session id of current video application layer, the identifier of currently playing video content, current hang, and
The entry address of the current Living streaming server that service is provided.
14. video living transmission system according to claim 9, which is characterized in that the UE is also used to hand over by SMF and gNB
Mutually to complete dedicated channel resource reconstruction, specifically:
UE is also used to send modification session request to SMF, to modify the data connection session shape established before for broadcasting video
State is ready;
After SMF is also used to receive modification session request, notice gNB rebuilds corresponding video dedicated data transmission information resources;
UE is also used to interact with gNB, to complete dedicated channel resource reconstruction.
15. video living transmission system according to claim 9, which is characterized in that the UE built in video application is also used to lead to
Video timeshift server is crossed to continue to play video content from pause point, specifically:
UE built in video application is also used to initiate video content request to Video timeshift server;
Video timeshift server, which is also used to apply to UE built in video from pause point, sends video content;
UE built in video application is also used to continue from pause point to play video content.
16. the video living transmission system according to any one of claim 9-15, which is characterized in that
During UE is interacted with gNB by SMF to complete dedicated channel resource release, UE and gNB are also used to save respectively
The context parameters of the resource discharged;
During UE is interacted with gNB by SMF and rebuild with completing dedicated channel resource, UE and gNB are also used to using previous
The context parameters of preservation rebuild wireless data transmission channel.
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