CN115278552A - Method and system for realizing video broadcast based on 5G - Google Patents
Method and system for realizing video broadcast based on 5G Download PDFInfo
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Abstract
The purpose of the present application is to provide a method and a system for implementing video broadcasting based on 5G, wherein the system of the present application includes: the system comprises a 5G broadcast server and a 5G broadcast receiving terminal, wherein the 5G broadcast server is used for carrying out broadcast signal transmission after coding and modulating video broadcast contents, and carrying out internet content distribution after transcoding and slicing the video broadcast contents; the 5G broadcast receiving terminal is used for receiving broadcast data by using a 5G NR new air interface in an area with the strength value larger than or equal to the strength threshold according to the strength value of the 5G NR new air interface broadcast signal, actively obtaining video broadcast content for data supplement by linking to the Internet through a 5G high-frequency signal in an area with the strength value smaller than the strength threshold, and automatically switching to a broadcast signal receiving mode when the signal is recovered. Thereby, the broadcasting signal can be smoothly realized; the live broadcast use experience of the 5G users is improved, and the popularization of the 5G video broadcast service is facilitated; a lower cost 5G broadcast network is constructed.
Description
Technical Field
The present application relates to the field of computers, and in particular, to a method and system for implementing video broadcasting based on 5G.
Background
In 6 months of 2019, the Ministry of industry and correspondence formally issues 5G license plates for operator enterprises, which means that China formally enters the 5G era. China radio and television obtains a 700MHz frequency band, the 700Mhz frequency band is a 'gold frequency band' for developing mobile communication by virtue of the advantages of low signal propagation loss, wide coverage, strong penetrating power, low networking cost and the like, and is mainly applied to a 5G broadcast frequency band at present.
For broadcast services, there are currently two modes:
1) Big tower model
Broadcast television tower-based video broadcasting is standardized in the 3gpp Release 16 version. In the aspect of practical scenes, the large-tower broadcasting scheme can realize large-range high-power transmission in a broadcasting mode, and ensures that a user plane can receive wireless broadcast television signals (large towers) by a terminal App in the scenes such as outdoors, vehicles and the like, so that the SIM card, the flow-free transmission common content, the public service content and the like can be realized.
2) Small tower model
Small towers, that is, base stations for mobile communication, can provide temporary services such as broadcast television because of their flexible coverage, but have lower power than large towers, and thus require more intensive coverage selection. China radio and television undoubtedly selects the mixed mode of NR size towers, so the name of '5G NR broadcasting' is given to the outside.
In view of cost and practical technical aspects, the existing broadcast and television 5G NR broadcasting mainly depends on a large tower mode such as a broadcast television tower, that is, several large NR base stations are mainly deployed to realize 5G broadcasting. This faces some problems:
1) Urban high-rise buildings are more, and NR broadcast coverage can be blocked, so that a plurality of blind areas can be generated in the coverage range of a tower.
2) If small towers are used to achieve coverage, at least the current cost can be prohibitive and impractical. The broadcasting range covered by one large tower is within dozens of kilometers, the number of the broadcasting base stations can be greatly reduced, and even a large tower can cover the whole city within the range of a city. With a small tower, the cost will increase significantly.
3) Considering coverage, loss, networking cost and other factors, the 700M band is currently preferred for broadcasting.
Disclosure of Invention
An object of the present application is to provide a method and an apparatus for implementing video broadcasting based on 5G, which solve the problems in the prior art that currently, a large tower NR is mainly used for broadcasting television towers, but signal coverage is not good, more NR base stations need to be invested, live broadcast of 5G users is experienced low, and broadcast network cost is high.
According to an aspect of the present application, there is provided a method for implementing video broadcasting based on 5G, the method including:
the method comprises the steps that a 5G broadcast server side carries out coding modulation on video broadcast content, then carries out broadcast signal transmission, carries out transcoding slicing on the video broadcast content, and then carries out internet content distribution;
and using the 5G new air interface broadcast in the area of which the strength value is greater than or equal to the strength threshold value by the 5G broadcast receiving terminal according to the strength value of the 5G new air interface broadcast signal, actively obtaining video broadcast content for data supplement through the high-frequency base station in the area of which the strength value is less than the strength threshold value, and automatically switching to a broadcast signal receiving mode when the signal is recovered.
Optionally, the encoding and modulating the video broadcast content at the 5G broadcast service end and then transmitting the broadcast signal includes:
and after the video broadcast content is coded and modulated at the 5G broadcast server, the broadcast signal is transmitted by using the media content active push mode.
Optionally, transcoding and slicing the video broadcast content, and then distributing the internet content, includes:
and after transcoding and slicing the video content at the 5G broadcast server, putting the video content to a mobile Internet terminal so that the 5G broadcast receiving terminal establishes a mobile Internet link by using 5G high frequency and acquires the video content in an active pull mode.
Optionally, in the 5G broadcast receiving terminal, according to the strength value of the 5G new air interface broadcast signal, using a 5G new air interface broadcast in an area where the strength value is greater than or equal to the strength threshold includes:
starting a 5G channel application program at a 5G broadcast receiving terminal, wherein the 5G channel application program receives a 5G broadcast signal through a 5G new air interface broadcast interface so as to extract the 5G broadcast signal and obtain video stream data of a target channel;
and caching the video stream data of the target channel, detecting the strength value of a 5G new air interface broadcast signal by using the 5G channel application program, and continuously using the 5G new air interface broadcast in the area of which the strength value is greater than or equal to the strength threshold value.
Optionally, actively obtaining the video broadcast content for data supplement by the high frequency base station in the area where the intensity value is smaller than the intensity threshold, including:
starting a 5G channel application program at a 5G broadcast receiving terminal, wherein the 5G channel application program receives a 5G broadcast signal and synchronously starts a 5G high-frequency communication module when detecting that the intensity value of a 5G new air interface broadcast signal is smaller than an intensity threshold value;
video broadcast contents distributed by the internet are obtained by the 5G high-frequency communication module in an active pull mode, the video broadcast contents are preprocessed through the media preprocessing module, and the preprocessed contents are cached and subjected to data supplement.
Optionally, when the signal is restored, automatically switching to a broadcast signal reception mode includes:
when the signal is recovered, the channel for receiving the distributed content from the Internet is closed, and the mode is automatically switched to the broadcast signal receiving mode.
According to another aspect of the present application, there is also provided a system for implementing video broadcasting based on 5G, the system including: a 5G broadcast server and a 5G broadcast receiving terminal, wherein,
the 5G broadcast server is used for carrying out broadcast signal transmission after coding and modulating video broadcast contents, carrying out transcoding and slicing on the video broadcast contents and then carrying out internet content distribution;
the 5G broadcast receiving terminal is used for using 5G new air interface broadcast in the area with the strength value larger than or equal to the strength threshold according to the strength value of the 5G new air interface broadcast signal, actively obtaining video broadcast content for data supplement through the high-frequency base station in the area with the strength value smaller than the strength threshold, and automatically switching to a broadcast signal receiving mode when the signal is recovered.
Optionally, the 5G broadcast service end includes an interleaving coding multiplexing module and a transmitting module; the interleaving and coding multiplexing module is used for interleaving, coding and multiplexing the video broadcast content to obtain a processed broadcast signal; the transmitting module is used for transmitting the processed broadcast signal by using a media content active push mode.
Optionally, the 5G broadcast server includes a transcoding slicing module and a content distribution module; the transcoding and slicing module is used for transcoding and slicing the video content, and the content distribution module is used for acquiring internet content of the transcoded and sliced video content by the 5G broadcast receiving terminal in an active pull mode according to a received media content request sent by the 5G broadcast receiving terminal.
Optionally, the broadcast terminal includes a 5G NR channel module, where the 5G NR channel module includes a 5G new air interface broadcast interface module, a program demultiplexing module, and a network detection module;
the 5G new air interface broadcast interface module is used for receiving a 5G broadcast signal;
the program demultiplexing module is used for extracting the 5G broadcast signals to obtain video stream data of a target channel;
the network detection module is used for detecting the strength value of the 5G new air interface broadcast signal.
Optionally, the broadcast terminal includes a 5G high-frequency communication module, where the 5G high-frequency communication module includes a 5G high-frequency interface module, an internet communication interface module, and a media preprocessing module;
the 5G high-frequency communication module is used for carrying out signal communication of a 5G network through 5G high frequency; the internet communication interface module is used for analyzing internet data through data obtained by the 5G high-frequency communication module, extracting video broadcast contents and sending the video broadcast contents to the media preprocessing module, and the media preprocessing module is used for preprocessing the video broadcast contents and supplementing the preprocessed contents with data.
Optionally, the system includes a buffer module and an audio/video decoding module, where the buffer module is configured to buffer data synchronized by the 5G NR channel module or the 5G high-frequency communication module, and the audio/video decoding module is configured to decode the data buffered in the buffer module to perform video playing.
According to yet another aspect of the present application, there is also provided a computer readable medium having computer readable instructions stored thereon, the computer readable instructions being executable by a processor to implement the method as described above.
Compared with the prior art, the method has the advantages that the video broadcast content is coded and modulated at the 5G broadcast server, then broadcast signals are transmitted, and the video broadcast content is transcoded and sliced and then distributed to the Internet; and using the 5G new air interface broadcast in the area of which the strength value is greater than or equal to the strength threshold value by the 5G broadcast receiving terminal according to the strength value of the 5G new air interface broadcast signal, actively obtaining video broadcast content for data supplement through the high-frequency base station in the area of which the strength value is less than the strength threshold value, and automatically switching to a broadcast signal receiving mode when the signal is recovered. Therefore, the problem that the signal coverage is poor due to the fact that the broadcasting television tower is mainly relied at present is solved, and the broadcasting signals can be smooth; the method has the advantages that the base stations of other frequency bands are utilized to obtain live broadcast signals in the area where the NR signals cannot cover without putting more NR base stations; the live broadcast use experience of the 5G users is improved, and the popularization of the 5G video broadcast service is facilitated; a lower cost broadcast network is constructed.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a schematic structural diagram illustrating a system for implementing video broadcasting based on 5G according to an aspect of the present application;
fig. 2 is a block diagram of a system for implementing video broadcasting under 5G technical conditions in an embodiment of the present application;
fig. 3 is a schematic diagram illustrating a framework of a 5G broadcast server in an embodiment of the present application;
fig. 4 is a schematic diagram illustrating a framework of a 5G broadcast receiving terminal in an embodiment of the present application;
fig. 5 is a flow chart illustrating a method for implementing video broadcasting according to an aspect of the present application.
The same or similar reference numbers in the drawings identify the same or similar elements.
Detailed Description
The present application is described in further detail below with reference to the attached figures.
In a typical configuration of the present application, the terminal, the device serving the network, and the trusted party each include one or more processors (e.g., central Processing Units (CPUs)), input/output interfaces, network interfaces, and memory.
The Memory may include volatile Memory in a computer readable medium, random Access Memory (RAM), and/or nonvolatile Memory such as Read Only Memory (ROM) or flash Memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase-Change RAM (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read-Only Memory (EEPROM), flash Memory or other Memory technology, compact Disc Read-Only Memory (CD-ROM), digital Versatile Disc (DVD) or other optical storage, magnetic cassette tape, magnetic tape storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include non-transitory computer readable media (transient media), such as modulated data signals and carrier waves.
Fig. 1 shows a schematic structural diagram of a system for implementing video broadcasting based on 5G according to an aspect of the present application, the system including: the system comprises a 5G broadcast server 11 and a 5G broadcast receiving terminal 12, wherein the 5G broadcast server 11 is used for carrying out broadcast signal transmission after coding and modulating video broadcast contents, and carrying out internet content distribution after transcoding and slicing the video broadcast contents; the 5G broadcast receiving terminal 12 is configured to use a 5G new air interface broadcast in an area where the strength value is greater than or equal to the strength threshold according to the strength value of the 5G new air interface broadcast signal, actively obtain video broadcast content for data supplementation through a high-frequency base station in an area where the strength value is less than the strength threshold, and automatically switch to a broadcast signal receiving mode when the signal is restored.
In the embodiment of the application, the application realizes the function of video broadcasting under the 5G technical condition, a 5G broadcasting service end 11 in a used system adopts a 5G dual-band broadcasting head end, and a 5G broadcasting receiving terminal 12 adopts a 5G broadcasting receiving end; and on the one hand, the same video content is coded and modulated and then transmitted out through a tower at the 5G broadcast server, and on the other hand, the same video content is transcoded and sliced according to an internet content mode and then is put on an internet platform for internet content distribution. The 5G broadcast receiving terminal can obtain live broadcast signals through a 700M 5G broadcast frequency band, and if the live broadcast signals cannot be covered, the terminal can actively search contents on the Internet to supplement or switch by means of other 5G frequency bands through a base station in an Internet data point-to-point request mode. Specifically, according to the strength of a 5G new air interface (NR) broadcast signal, a 5G NR 700M broadcast channel is used for watching video broadcast in a 5G broadcast receiving terminal in a strong area; in an area with weak 5G NR 700M signals, establishing the Internet through 5G high frequency to actively obtain live broadcast content, supplementing data and realizing playing, and automatically switching to a broadcast signal receiving mode, namely switching to a 5G low-frequency band broadcast mode when the signals are recovered.
Fig. 2 is a frame diagram illustrating a system for implementing video broadcasting under 5G technical conditions in an embodiment of the present application, where the system includes a 5G network side and a mobile phone terminal side, where the 5G network side is a 5G broadcasting service end, and the mobile phone terminal side is a 5G broadcasting receiving terminal, and here, a mobile phone terminal is used as an example, and may also be a television terminal, a pad terminal, and the like; the network side comprises a 5G broadcasting side and a 5G high-frequency data side, both of which receive the signal source channel media stream, the 5G broadcasting side sends the media stream in a broadcast PUSH mode, and the 5G high-frequency data side waits for an active request PULL mode of the mobile phone terminal in an internet cloud service mode. When the mobile phone terminal side watches the broadcast channel information, the 5G broadcast is used for directly receiving the signal of the tower broadcast in the area with strong 5G broadcast signal, and the 5G high-frequency band is actively adopted in the area with weak 5G broadcast signal to access the cloud content through the base station to supplement the data. The frequency band used in the PUSH mode is a 700Mhz frequency band, and the frequency band used in the PUSH mode is a frequency band with a higher frequency band of the communication base station, for example, a frequency band of 2.6G or a frequency band of 4.9G.
Specifically, the 5G broadcast service end includes an interleaving coding multiplexing module and a transmitting module; the interleaving and coding multiplexing module is used for interleaving, coding and multiplexing the video broadcast content to obtain a processed broadcast signal; the transmitting module is used for transmitting the processed broadcast signal by using a media content active push mode. Here, as shown in fig. 3, the 5G broadcast service end includes an interleaving coding multiplexing module and a transmitting module, the interleaving coding multiplexing module is configured to perform an interleaving coding multiplexing process on a broadcast channel media stream, the channel coding modulation transmitting module is used to directly transmit the broadcast channel media stream through a tower, the broadcast mode is a broadcast mode, and the broadcast mode directly performs a downward PUSH mode through the tower and transmits the broadcast mode to the mobile phone terminal.
According to the embodiment, the 5G broadcast server comprises a transcoding slicing module and a content distribution module; the transcoding and slicing module is used for transcoding and slicing the video content, and the content distribution module is used for acquiring internet content of the transcoded and sliced video content by the 5G broadcast receiving terminal in an active pull mode according to a received media content request sent by the 5G broadcast receiving terminal. With continued reference to fig. 3, on one hand, the 5G broadcast server sends video content in a PUSH format of broadcast, on the other hand, in an internet cloud service mode, and when the 5G broadcast server is in an internet cloud service mode, the 5G broadcast server includes a transcoding slicing module and a content distribution module, the transcoding slicing module is configured to transcode and slice the received multiple broadcast channel media streams, send the content to an internet platform through the content distribution module, and the mobile phone terminal accesses the internet content through the cellular base station.
Specifically, the broadcast terminal includes a 5G NR channel module, where the 5G NR channel module includes a 5G new air interface broadcast interface module, a program demultiplexing module, and a network detection module; the 5G new air interface broadcast interface module is used for receiving a 5G broadcast signal; the program demultiplexing module is used for extracting the 5G broadcast signals to obtain video stream data of a target channel; and the network detection module is used for detecting the strength value of the 5G new air interface broadcast signal. Here, the 5G broadcast receiving terminal may receive a 700Mhz broadcast signal or access internet contents through a base station; as shown in fig. 4, the mobile phone terminal includes a 5G NR channel module, where the channel module includes a 5G NR interface module, a program demultiplexing module, and a network detection module, the mobile phone terminal starts a channel application program, the application program receives a 5G broadcast signal through the 5G NR interface module, the program demultiplexing module extracts video stream data of a specific channel, and the network detection module detects the 5G broadcast signal and detects a strength value of the broadcast signal.
Specifically, the broadcast terminal comprises a 5G high-frequency communication module, wherein the 5G high-frequency communication module comprises a 5G high-frequency interface module, an internet communication interface module and a media preprocessing module; the 5G high-frequency communication module is used for carrying out signal communication of a 5G network through 5G high frequency; the internet communication interface module analyzes internet data through data obtained by the 5G high-frequency communication module, extracts video broadcast contents and sends the video broadcast contents to the media preprocessing module, and the media preprocessing module is used for preprocessing the video broadcast contents and supplementing the preprocessed contents with data. In the area with poor 5G broadcast signals, actively adopting a 5G high-frequency band to access internet contents through a base station to supplement data; as shown in fig. 4, the mobile phone terminal further includes a 5G high-frequency communication module, where the high-frequency communication module includes a 5G high-frequency interface module, an internet communication interface module, and a media preprocessing module, where an application program of the mobile phone terminal is started, the application program senses that video data is incomplete, and detects a 5G broadcast signal difference, the application program synchronously starts the 5G high-frequency interface module, receives data through the 5G high-frequency interface module, and communicates with a 5G high-frequency base station through the 5G high-frequency interface module to obtain an internet channel; the internet communication interface module delivers the received information to the media preprocessing module, and the media preprocessing module preprocesses the received media stream information and then supplements the content. Wherein the pre-processing comprises assembling the obtained data into data that can be processed by the media player. When the 5G live broadcast signal is not smooth, the terminal needs to use the 5G high-frequency access internet content to perform data supplement, for example, if the user is watching the live broadcast A, but the broadcast has no signal, the live broadcast content of the live broadcast A is obtained through the internet signal linked on other 5G frequency bands, and content supplement is obtained.
In connection with the above embodiment, the system includes a buffer module and an audio/video decoding module, where the buffer module is configured to buffer data synchronized by the 5G NR channel module or the 5G high-frequency communication module, and the audio/video decoding module is configured to decode the data buffered in the buffer module to perform video playing. Here, with reference to fig. 4, the buffer module is a media packet buffer module, and when the 5G signal is strong, the buffer module is configured to buffer the video stream data sent by the 5G NR channel module, so that the audio/video decoding module is used to read the data received by the media packet buffer module, and play the video. When the 5G signal is weak, the media preprocessing module synchronizes the received media stream information to the cache module and the broadcast channel, the cache module is used for caching the media stream information synchronized by the media preprocessing module, and the audio and video decoding module plays the received related media stream.
Through the system, the channel media stream signal source respectively distributes the content through the 5G broadcast tower broadcast and the Internet; the 5G broadcast receiving terminal receives the 5G broadcast signal to watch the broadcast channel; when the 5G broadcast signal is not good, the 5G broadcast receiving terminal starts a 5G high frequency band, and accesses the Internet content through the 5G base station to supplement the broadcast content; when the 5G broadcast signal is restored, the 5G broadcast receiving terminal switches to 5G broadcast. Therefore, the problem that the current television broadcasting tower mainly depends on a large tower NR but the signal coverage is poor is solved, and the system realizes smooth broadcasting signals; the method has the advantages that more NR base stations are not required to be used, and base stations of other frequency bands are used for obtaining live broadcast signals in the area where the NR signals cannot be covered; the live broadcast use experience of the 5G users is improved, and the popularization of the 5G video broadcast service is facilitated; a lower cost broadcast network is constructed.
In the application, the broadcast PUSH mode and the active request PUSH mode are complemented by utilizing a 5G dual-frequency band, namely, the 700Mhz frequency realizes coverage in a large range by utilizing the broadcast PUSH mode; when the 700M frequency cannot cover the place, the terminal actively obtains the live broadcast content by adopting the 5G high-frequency band, and the live broadcast content are mutually supplemented, so that the 5G video broadcast service is constructed as soon as possible, and the terminal user experience is improved.
Fig. 5 is a flowchart illustrating a method for implementing video broadcasting based on 5G according to an aspect of the present application, where the method includes: step S11 and step S12, wherein,
in step S11, the 5G broadcast server performs coding modulation on the video broadcast content, transmits a broadcast signal, transcodes and slices the video broadcast content, and then performs internet content distribution. The same video content is coded and modulated and then transmitted out through a tower at the 5G broadcast server, and is transcoded and sliced according to an internet content mode and then placed on an internet platform for internet content distribution. A5G broadcast receiving terminal can obtain live broadcast signals through a 700M 5G broadcast frequency band, and if the live broadcast signals cannot cover places, the terminal can actively search contents on the Internet for supplement or switching through a base station in an Internet data point-to-point request mode by means of other 5G frequency bands.
In step S12, according to the strength value of the 5G new air interface broadcast signal, the 5G new air interface is used to receive broadcast data in the area where the strength value is greater than or equal to the strength threshold at the 5G broadcast receiving terminal, the video broadcast content is actively obtained by the high frequency base station for data supplement in the area where the strength value is less than the strength threshold, and when the signal is restored, the receiving mode is automatically switched to the broadcast signal receiving mode. Here, according to the strength of a 5G new air interface (NR) broadcast signal, a 5G NR 700M broadcast is used in a 5G broadcast receiving terminal in a region where a 5G NR 700M signal is strong; in an area with weak 5G NR 700M signals, a mobile internet is established through 5G high frequency to actively obtain live broadcast content, data is supplemented to achieve playing, and when the signals are recovered, a terminal is automatically switched to a broadcast signal receiving mode, namely, to a 5G low frequency end broadcast mode.
In an embodiment of the present application, in step S11, a 5G broadcast server performs coding modulation on video broadcast content and then performs broadcast signal transmission using a media content active push mode. Here, the broadcast channel media stream is processed by one interleaving coding multiplexing and is directly transmitted through a tower, the broadcast mode is a broadcast mode, and the broadcast mode directly transmits to a 5G broadcast receiving terminal through a tower in a downward PUSH mode.
In an embodiment of the present application, in step S11, after the 5G broadcast server transcodes and slices the video content, the video content is put into a mobile internet terminal, so that the 5G broadcast receiving terminal establishes a mobile internet link by using a 5G high frequency and adopts an active pull mode to distribute the internet content. The 5G broadcast service end sends video content in a PUSH form of broadcast on one hand, and on the other hand, in an Internet cloud service mode, when the Internet cloud service mode is adopted, transcoding and slicing are carried out on received media streams of a plurality of broadcast channels, so that the media streams are sent to an Internet platform, the 5G broadcast receiving terminal accesses the Internet content through a cellular base station, a terminal user requests the media content as required, namely, the media content is in a passive PULL mode, the 5G terminal requests the content as required, and the Internet platform distributes the Internet content according to the request of the terminal.
In some embodiments of the present application, in step S12, a 5G channel application program is started at a 5G broadcast receiving terminal, and the 5G channel application program receives a 5G broadcast signal through a 5G new air interface broadcast interface to extract the 5G broadcast signal, so as to obtain target channel video stream data; and caching the video stream data of the target channel, detecting the strength value of a 5G new air interface broadcast signal by using the 5G channel application program, and continuously using the 5G new air interface broadcast in the area of which the strength value is greater than or equal to the strength threshold value. Here, the 5G broadcast signal is strong, and in a scene where the 5G broadcast receiving terminal receives the 5G broadcast signal, the user starts a 5G channel application program, and the 5G broadcast receiving terminal application program starts; the application program receives the 5G broadcast signal through the 5G NR interface, extracts video stream data of a specific channel to obtain target video stream data, caches the target video stream data, decodes and reads audio and video of the cached data, and plays the video; and calling the network detection module by the application program to detect the 5G broadcast signal, and when the strength value of the 5G broadcast signal is greater than or equal to the strength threshold value, determining that the signal is good, and continuously using the 5G broadcast channel to play the video.
In an embodiment of the present application, in step S12, a 5G channel application program is started at a 5G broadcast receiving terminal, and the 5G channel application program receives a 5G broadcast signal and synchronously starts a 5G high-frequency communication module when detecting that an intensity value of a 5G new air interface broadcast signal is smaller than an intensity threshold; video broadcast contents distributed by the Internet are obtained by the 5G high-frequency communication module in an active pull mode, the video broadcast contents are preprocessed by the media preprocessing module, and the preprocessed contents are cached and supplemented with data. When the signal is recovered, the channel for receiving the distributed content from the Internet is closed, and the mode is automatically switched to the broadcast signal receiving mode. Here, when the 5G broadcast signal difference indicates that the 5G broadcast receiving terminal receives a 5G broadcast signal and switches to a 5G signal of another frequency band, the user starts a 5G channel application program, and the channel application program of the 5G broadcast receiving terminal starts; the application program receives the 5G signal, demodulates, demultiplexes and decodes and plays the related video; the application program senses that the data of the played related video is incomplete, and detects a 5G broadcast signal difference, the application program synchronously starts to obtain the data through a 5G high-frequency communication module; the application program is communicated with the 5G high-frequency base station through the high-frequency interface module to obtain an internet channel; media preprocessing is carried out on received content distributed by the Internet, and the preprocessed data are cached and synchronized to a broadcast channel so as to supplement the content; and decoding the received related media stream through an audio and video decoding module and then playing the decoded related media stream. And when the 5G broadcast signal is detected to be recovered, namely the signal strength value is greater than or equal to the strength threshold value, closing the Internet channel and only obtaining data from the broadcast signal.
On one hand, a direct broadcast signal source transmits signals outwards in a 5G NR (noise-and-noise ratio) broadcasting mode, and in order to fully utilize spectrum resources, a plurality of channels are interleaved and then coded. After being modulated, the mixed solution is emitted out through a 5G tower. The 700M frequency spectrum is used for transmitting broadcast signals, the coverage radius is large and can reach dozens of kilometers, and therefore the flow is well saved when the frequency channel is broadcasted. And on the other hand, the live broadcast signal source is put on an internet platform through operations such as compression, transcoding, fragmentation and the like, so that the terminal can actively access the video data through the base station in an internet data mode. Meanwhile, the correlation matching between the broadcast channel and the internet signal source is established so that the terminal can access the internet signal source.
The development and landing of 5G broadcasting are promoted. According to the relevant planning, 5G broadcast is taken as 5G key application, and is definitely on line. However, due to the consideration of cost, the base station of the 5G broadcast is mainly a tower, and is added with the high buildings in the city, which will cause some dead zones in the broadcast area, and bring intermittent experience to the terminal user when using the 5G broadcast service.
The application creatively proposes that the broadcast PUSH mode and the active request PUSL mode are complementary by utilizing the 5G dual-frequency band, namely, the 700Mhz frequency utilizes the broadcast PUSH mode to realize the coverage in a large range; when the 700M frequency cannot cover the place, the terminal actively obtains the live broadcast content by adopting the 5G high-frequency band, and the live broadcast content complement each other, so that the 5G video broadcast service is built as soon as possible, and the terminal user experience is improved.
In addition, the embodiment of the present application also provides a computer readable medium, on which computer readable instructions are stored, where the computer readable instructions are executable by a processor to implement the aforementioned method for implementing video broadcasting based on 5G.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
It should be noted that the present application may be implemented in software and/or a combination of software and hardware, for example, implemented using Application Specific Integrated Circuits (ASICs), general purpose computers or any other similar hardware devices. In one embodiment, the software programs of the present application may be executed by a processor to implement the steps or functions described above. As such, the software programs (including associated data structures) of the present application can be stored in a computer readable recording medium, such as RAM memory, magnetic or optical drive or diskette and the like. Additionally, some of the steps or functions of the present application may be implemented in hardware, for example, as circuitry that cooperates with the processor to perform various steps or functions.
Additionally, some portions of the present application may be applied as a computer program product, such as computer program instructions, which, when executed by a computer, may invoke or provide the method and/or solution according to the present application through the operation of the computer. Program instructions which invoke the methods of the present application may be stored on a fixed or removable recording medium and/or transmitted via a data stream on a broadcast or other signal-bearing medium and/or stored within a working memory of a computer device operating in accordance with the program instructions. An embodiment according to the present application comprises an apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform a method and/or a solution according to the aforementioned embodiments of the present application.
It will be evident to those skilled in the art that the application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the apparatus claims may also be implemented by one unit or means in software or hardware. The terms first, second, etc. are used to denote names, but not to denote any particular order.
Claims (13)
1. A method for realizing video broadcasting based on 5G is characterized in that the method comprises the following steps:
the method comprises the steps that a 5G broadcast server side carries out coding modulation on video broadcast content, then carries out broadcast signal transmission, carries out transcoding slicing on the video broadcast content, and then carries out internet content distribution;
and using the 5G new air interface broadcast in the area of which the strength value is greater than or equal to the strength threshold value by the 5G broadcast receiving terminal according to the strength value of the 5G new air interface broadcast signal, actively obtaining video broadcast content for data supplement through the high-frequency base station in the area of which the strength value is less than the strength threshold value, and automatically switching to a broadcast signal receiving mode when the signal is recovered.
2. The method of claim 1, wherein the broadcast signal transmission after the video broadcast content is coded and modulated by the 5G broadcast service end comprises:
and after the video broadcast content is coded and modulated at the 5G broadcast server, the broadcast signal is transmitted by using the media content active push mode.
3. The method of claim 1, wherein transcoding and slicing the video broadcast content for internet content distribution comprises:
and after transcoding and slicing the video content at the 5G broadcast server, putting the video content into a mobile internet segment, so that the 5G broadcast receiving terminal establishes a mobile internet link by using the 5G high frequency and acquires the internet content video content in an active pull mode.
4. The method according to claim 1, wherein using a 5G new air interface broadcast in an area where a strength value is greater than or equal to a strength threshold by a 5G broadcast receiving terminal according to the strength value of the 5G new air interface broadcast signal includes:
starting a 5G channel application program at a 5G broadcast receiving terminal, wherein the 5G channel application program receives a 5G broadcast signal through a 5G new air interface broadcast interface so as to extract the 5G broadcast signal and obtain video stream data of a target channel;
and caching the video stream data of the target channel, detecting the strength value of a 5G new air interface broadcast signal by using the 5G channel application program, and continuously using the 5G new air interface broadcast in the area of which the strength value is greater than or equal to the strength threshold value.
5. The method of claim 1, wherein actively obtaining video broadcast content for data supplementation by a high frequency base station in an area where the intensity value is less than the intensity threshold comprises:
starting a 5G channel application program at a 5G broadcast receiving terminal, wherein the 5G channel application program receives a 5G broadcast signal and synchronously starts a 5G high-frequency communication module when detecting that the strength value of a 5G new air interface broadcast signal is smaller than a strength threshold value;
video broadcast contents distributed by the Internet are obtained by the 5G high-frequency communication module in an active Pull mode, the video broadcast contents are preprocessed by the media preprocessing module, and the preprocessed contents are cached and supplemented with data.
6. The method according to claim 1 or 5, wherein the 5G broadcast receiving terminal automatically switches to a broadcast signal receiving mode when the signal is restored, comprising:
when the signal is recovered, the channel for receiving the distributed content from the internet is closed, and the 5G broadcast receiving terminal is automatically switched to a broadcast signal transmitting mode.
7. A system for implementing video broadcasting based on 5G, the system comprising: a 5G broadcast server and a 5G broadcast receiving terminal, wherein,
the 5G broadcast server is used for carrying out coding modulation on video broadcast contents, then carrying out broadcast signal transmission, carrying out transcoding slicing on the video broadcast contents, and then carrying out internet content distribution;
the 5G broadcast receiving terminal is used for using the 5G new air interface broadcast in the area of which the strength value is greater than or equal to the strength threshold value according to the strength value of the 5G new air interface broadcast signal, actively obtaining video broadcast content for data supplement through the high-frequency base station in the area of which the strength value is less than the strength threshold value, and automatically switching to a broadcast signal receiving mode when the signal is recovered.
8. The system of claim 7, wherein the 5G broadcast server comprises an interleaving code multiplexing module and a transmitting module; the interleaving and coding multiplexing module is used for interleaving, coding and multiplexing the video broadcast content to obtain a processed broadcast signal; the transmitting module is used for transmitting the processed broadcast signal by using a media content active push mode.
9. The system of claim 7, wherein the 5G broadcast server comprises a transcoding slicing module and a content distribution module; the transcoding and slicing module is used for transcoding and slicing the video content, and the content distribution module is used for enabling the 5G broadcast receiving terminal to adopt an active pull mode to acquire internet content of the transcoded and sliced video content according to a received media content request sent by the 5G broadcast receiving terminal.
10. The system of claim 7, wherein the broadcast terminal comprises a 5G terminal
The system comprises a 5G NR channel module, a control module and a network detection module, wherein the 5G NR channel module comprises a 5G new air interface broadcast interface module, a program demultiplexing module and a network detection module;
the 5G new air interface broadcast interface module is used for receiving a 5G broadcast signal;
the program demultiplexing module is used for extracting the 5G broadcast signals to obtain video stream data of a target channel;
the network detection module is used for detecting the strength value of the 5G new air interface broadcast signal.
11. The system of claim 7, wherein the broadcasting terminal comprises a 5G high frequency communication module, and the 5G high frequency communication module comprises a 5G high frequency interface module, an internet communication interface module, and a media preprocessing module;
the 5G high-frequency communication module is used for carrying out signal communication of a 5G network through 5G high frequency; the internet communication interface module analyzes internet data through data obtained by the 5G high-frequency communication module, extracts video broadcast content and sends the video broadcast content to the media preprocessing module; the media preprocessing module is used for preprocessing the video broadcast content and supplementing the preprocessed content with data.
12. The system according to claim 10 or 11, wherein the system comprises a buffer module and an audio/video decoding module, wherein the buffer module is configured to buffer data synchronized by the 5G NR channel module or the 5G high frequency communication module, and the audio/video decoding module is configured to decode the data buffered in the buffer module for video playing.
13. A computer readable medium having computer readable instructions stored thereon which are executable by a processor to implement the method of any one of claims 1 to 6.
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