CN115085790B - Channel environment self-adaption method and narrow bandwidth conference system - Google Patents
Channel environment self-adaption method and narrow bandwidth conference system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18576—Satellite systems for providing narrowband data service to fixed or mobile stations, e.g. using a minisatellite, a microsatellite
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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
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
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- 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
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
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- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
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- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
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Abstract
The invention provides a channel environment self-adaption method and a narrow bandwidth conference system, which belong to the technical field of communication, and a data source module is used for converting received audio and video code streams and equipment code streams into a unified protocol meeting an internal interface; the target module is used for converting the unified protocol code stream transmitted by the internal interface of the system into code streams meeting different interfaces and different protocols, and supporting decoding display and transmission of the audio and video code stream; the scheduling module is used for coordinating the internal code stream of the system, managing the connection relation between the data source module and the destination module and forwarding the media parameters of the coding end. The invention can make multiple independent devices establish a group meeting under a satellite narrow-band environment to form a video-audio conference system, the type of the group meeting supports multiple forms such as V.35 link, IP receiving and transmitting, code stream forwarding and the like, and the corresponding scheduling system can flexibly and conveniently control and monitor the conference and has stronger compatibility, flexibility and channel self-adaptability.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a channel environment self-adaption method based on ground-satellite communication hybrid networking and a narrow bandwidth conference system.
Background
At present, the common audio/video encoding/decoding equipment supports one-way or several-way encoding/decoding, the research direction mainly focuses on how to optimize the encoding/decoding effect of audio/video, the equipment encoding/decoding system is generally customized according to the actual use scene of the equipment, the flexibility of the device is poor, the adaptability to different channel environments, especially the satellite narrowband environment is poor, and the conference construction lacks stability and reliability.
The traditional audio/video coding and decoding system generally only comprises two parts of coding and decoding, the receiving and sending of the data code stream is contained in the coding and decoding module, the conversion function of different protocol data is lacked, when the audio/video group meeting is carried out, the transmission link of the audio/video code stream is relatively fixed, the meeting is not established flexibly, and the system compatibility is lower. Secondly, the system lacks detection of the channel environment in different channel environments, especially in a satellite narrow-band environment, and cannot adjust the service mode according to the actual channel environment, so that a reliable and stable conference cannot be established in the narrow-band environment.
Disclosure of Invention
The invention aims to provide a channel environment self-adaptive method based on ground-satellite communication hybrid networking and a narrow bandwidth conference system which can stably and reliably establish a conference under the condition of narrower transmission bandwidth when a satellite channel is utilized for data transmission, so as to solve at least one technical problem in the background technology.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
in one aspect, the present invention provides a channel environment adaptation method, including:
Before a group meeting is established among devices to start a video conference, receiving a bandwidth detection signal sent by a sending end device, and returning a feedback packet with bandwidth information;
And the receiving and transmitting end equipment compares the bandwidth size information of the current data transmission link obtained by analyzing the feedback packet with the bandwidth required by the preset service, and determines the transmission of the audio and video code stream according to the comparison result.
Preferably, if the bandwidth is sufficient, the device starts sending the audio and video code stream according to the preset setting; if the channel bandwidth cannot meet the service requirement, the equipment automatically changes the coding bandwidth of the equipment according to the actual channel bandwidth and then starts to transmit the audio and video code stream; if the channel bandwidth is too low to meet the normal video conference, the device may discard the video stream and switch to transmitting the audio stream.
Preferably, in order to adapt to the satellite channel, a communication mode of uplink unicast and downlink multicast is adopted: the audio and video code streams of the ground equipment are unicast packed and then directly sent to the satellite through a satellite channel, the satellite receives the audio and video code streams and then carries out multicast packing on the data, and then the data are forwarded to a unified multicast address through the satellite channel, and the ground equipment participating in the group meeting receives the audio and video code streams from the multicast address.
In a second aspect, the present invention provides a narrow bandwidth conferencing system based on the channel environment adaptation method as described above, comprising:
the data source module is used for converting the received audio and video code stream and the received equipment code stream into a unified protocol meeting the internal interface;
The target module is used for converting the unified protocol code stream transmitted by the internal interface of the system into code streams meeting different interfaces and different protocols, and supporting decoding display and transmission of the audio and video code stream;
The scheduling module is used for coordinating the internal code stream of the system, managing the connection relation between the data source module and the destination module and forwarding the media parameters of the coding end.
Preferably, in the data source module, after the audio and video code stream acquired by the audio and video acquisition equipment is encoded by the encoding unit, the encoding unit packages the audio and video code stream according to the internal protocol of the system, and sends the packaged code stream through an internal UDP interface;
The device receives the external video code stream through different interfaces, firstly analyzes the external video code stream, packages the analyzed code stream again according to the internal protocol of the system, and finally sends the code stream through a unified UDP interface.
Preferably, after receiving the audio and video code stream conforming to the internal protocol of the system, the UDP interface in the system analyzes the audio and video code stream, and the decoding unit decodes the unpacked code stream and outputs the decoded code stream to audio and video playing equipment for display;
After receiving the audio and video code stream conforming to the internal protocol of the system, the UDP interface in the system analyzes the audio and video code stream, packs the audio and video code stream again according to the corresponding protocol by the transmitting interface, and finally transmits the audio and video code stream through the interface.
Preferably, after the audio and video group meeting is established by using a plurality of devices, the device serving as the center completely analyzes the self coding stream and the audio and video code streams of other devices received by different interfaces in the data source module and then sends all the decoded audio and video code streams to the decoding module in the destination module for decoding, and the decoded audio and video code streams are displayed in a multi-channel splicing manner in the playing display device of the center device.
In a third aspect, the present invention provides a computer device comprising a memory and a processor, the processor and the memory being in communication with each other, the memory storing program instructions executable by the processor, the processor invoking the program instructions to perform a channel environment adaptation method as described above.
In a fourth aspect, the present invention provides an electronic device comprising a memory and a processor, the processor and the memory being in communication with each other, the memory storing program instructions executable by the processor, the processor invoking the program instructions to perform a channel environment adaptation method as described above.
In a fifth aspect, the present invention provides a computer readable storage medium storing a computer program which, when executed by a processor, implements a channel environment adaptation method as described above.
The invention has the beneficial effects that: the method can enable a plurality of independent devices to establish a group meeting under a satellite narrow-band environment to form a video-audio conference system, the type of the group meeting supports a plurality of forms such as V.35 links, IP receiving and transmitting, code stream forwarding and the like, and the corresponding scheduling system can flexibly and conveniently control and monitor the conference and has stronger compatibility, flexibility and channel self-adaption.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a functional block diagram of a narrow bandwidth conference system based on a hybrid terrestrial-satellite communication network according to an embodiment of the present invention.
Fig. 2 is a block diagram of the workflow among the functional modules of the narrow bandwidth conference system based on the ground-satellite communication hybrid networking according to the embodiment of the present invention.
Fig. 3 is a schematic flow chart of a service mode of adaptive channel environment for a satellite narrowband according to an embodiment of the invention.
Fig. 4 is a schematic block diagram of a combined screen display according to an embodiment of the present invention.
Fig. 5 is a flowchart of a communication method under a satellite channel according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by way of the drawings are exemplary only and should not be construed as limiting the invention.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, and/or groups thereof.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
In order that the invention may be readily understood, a further description of the invention will be rendered by reference to specific embodiments that are illustrated in the appended drawings and are not to be construed as limiting embodiments of the invention.
It will be appreciated by those skilled in the art that the drawings are merely schematic representations of examples and that the elements of the drawings are not necessarily required to practice the invention.
Example 1
The embodiment 1 provides a narrow bandwidth conference system based on ground-satellite communication hybrid networking, and in order to achieve the purpose of the present invention, the device system is first subjected to modularized processing.
Dividing the system into a data source module and a destination module according to the transmission direction of the audio and video code stream in the system, wherein the data source module is mainly responsible for converting the received audio and video code stream outside the equipment and the coded stream of the equipment into a unified protocol meeting an internal interface; the target module is responsible for converting the unified protocol code stream transmitted by the internal interface of the system into code streams meeting different interfaces and different protocols, and supports decoding display and transmission of the audio and video code stream. In order to simplify system management and separate out that an independent scheduling module is responsible for coordinating the internal code stream of the system, managing the connection relation among the modules and forwarding the media parameters of the coding end. The functional modules in the system are connected with interfaces by adopting a unified RTP/UDP protocol, so that the code streams of different interfaces and different protocols can be mutually converted and flexibly combined, and the system composition block diagram is shown in figure 1.
The functional block diagram among the modules of the system is shown in figure 2.
The main working principle of the data source module is as follows: after the audio and video code stream acquired by the audio and video acquisition equipment is encoded through the system encoding module, the audio and video code stream is packed according to the internal protocol of the system, and the packed code stream is sent through an internal UDP interface; the device receives the video code stream of external factors through different interfaces (not limited to IP, but also an optical interface, V.35 and the like), firstly analyzes the video code stream, packages the analyzed code stream again according to the internal protocol of the system, and finally sends the code stream through a unified UDP interface.
The main working principle of the objective module is as follows: after receiving the audio and video code stream conforming to the internal protocol of the system, the system internal UDP interface decodes the unpacked code stream by the system decoding module and outputs the unpacked code stream to audio and video playing equipment for display. After receiving the audio and video code stream conforming to the internal protocol of the system, the UDP interface in the system analyzes the audio and video code stream, and packs the audio and video code stream again according to the corresponding protocol according to the transmitting interface (not limited to IP, but also can be an optical port, V.35 and the like), and finally transmits the audio and video code stream through the interface.
In this embodiment 1, an adaptive service mode is designed for the channel environment of the satellite narrowband: before a group session is established among devices, a transmitting end device sends a bandwidth detection signal into a channel, a target end receives the signal and returns a feedback packet with bandwidth information to the transmitting end, the transmitting end device analyzes the feedback packet to obtain the bandwidth of a current data transmission link, and the bandwidth is compared with the bandwidth required by a service preset by the device: if the bandwidth is enough, the equipment starts sending the audio and video code stream according to the preset setting; if the channel bandwidth cannot meet the service requirement, the equipment automatically changes the coding bandwidth of the equipment according to the actual channel bandwidth and then starts to transmit the audio and video code stream; if the channel bandwidth is too low to meet the normal video conference, the device may discard the video stream and switch to transmitting the audio stream. A specific system business flow diagram is shown in fig. 3.
In this embodiment 1, on the basis of system modularization processing, the multi-channel screen combination display function of the device is added, after the audio and video group meeting is established by using a plurality of devices, the device serving as the center completely analyzes the own encoded stream and the audio and video code streams of other devices received by different interfaces in the data source module, and then all sends the decoded audio and video code streams to the decoding module in the destination module for decoding, and the decoded audio and video code streams are displayed in a multi-channel splicing manner in the playing display device of the center device. The spliced combined screen video can be used as a new video source to be encoded or forwarded again. The system combined screen display working principle block diagram is shown in figure 4.
In this embodiment 1, to adapt to the satellite channel, a special communication method of uplink unicast and downlink multicast is adopted: the audio and video code streams of the ground equipment are unicast packed and then directly sent to the satellite through a satellite channel, the satellite receives the code streams and then carries out multicast packing on the data, and then the data are forwarded to a unified multicast address through the satellite channel, and the ground equipment participating in the group meeting receives the audio and video code streams from the multicast address. The communication scheme under the satellite channel is shown in fig. 5.
To sum up, in embodiment 1, the audio/video codec device performs the modularization processing: the method comprises the steps of separating coding from transmitting, separating receiving from decoding and an independent scheduling control module, so that the conversion function among different protocol data is increased, and the flexibility of the audio/video coding device is improved. Channel adaptation: before a group meeting, firstly, the channel environment is detected, a proper service mode is selected according to different channel environments, and the stable and reliable meeting communication is realized by adopting the communication mode of uplink unicast and downlink multicast. Compared with the existing audio/video encoding and decoding system, the system can enable a plurality of independent devices to establish a group meeting under a satellite narrow-band environment to form a video/audio conference system, the type of the group meeting supports a plurality of forms such as V.35 links, IP transceiving, code stream forwarding and the like, and the corresponding scheduling system can flexibly and conveniently control and monitor the conference and has stronger compatibility, flexibility and channel self-adaption.
Example 2
The embodiment 2 of the present invention provides an electronic device, including a memory and a processor, where the processor and the memory are in communication with each other, the memory stores program instructions executable by the processor, and the processor invokes the program instructions to execute a channel environment adaptive method based on terrestrial-satellite communication hybrid networking, and the method includes the following steps:
Before a group meeting is established among devices to start a video conference, receiving a bandwidth detection signal sent by a sending end device, and returning a feedback packet with bandwidth information;
And the receiving and transmitting end equipment compares the bandwidth size information of the current data transmission link obtained by analyzing the feedback packet with the bandwidth required by the preset service, and determines the transmission of the audio and video code stream according to the comparison result.
Example 3
Embodiment 3 of the present invention provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements a channel environment adaptation method based on terrestrial-satellite communication hybrid networking, the method comprising the steps of:
Before a group meeting is established among devices to start a video conference, receiving a bandwidth detection signal sent by a sending end device, and returning a feedback packet with bandwidth information;
And the receiving and transmitting end equipment compares the bandwidth size information of the current data transmission link obtained by analyzing the feedback packet with the bandwidth required by the preset service, and determines the transmission of the audio and video code stream according to the comparison result.
Example 4
Embodiment 4 of the present invention provides a computer device, including a memory and a processor, where the processor and the memory are in communication with each other, the memory stores program instructions executable by the processor, and the processor invokes the program instructions to perform a channel environment adaptation method based on terrestrial-satellite communication hybrid networking, where the method includes the steps of:
Before a group meeting is established among devices to start a video conference, receiving a bandwidth detection signal sent by a sending end device, and returning a feedback packet with bandwidth information;
And the receiving and transmitting end equipment compares the bandwidth size information of the current data transmission link obtained by analyzing the feedback packet with the bandwidth required by the preset service, and determines the transmission of the audio and video code stream according to the comparison result.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it should be understood that various changes and modifications could be made by one skilled in the art without the need for inventive faculty, which would fall within the scope of the invention.
Claims (5)
1. A method for channel environment adaptation, comprising:
Before a group meeting is established among devices to start a video conference, receiving a bandwidth detection signal sent by a sending end device, and returning a feedback packet with bandwidth information;
The receiving and transmitting end equipment compares the bandwidth size information of the current data transmission link obtained by analyzing the feedback packet with the bandwidth required by the preset service, and determines the transmission of the audio and video code stream according to the comparison result;
If the bandwidth is enough, the equipment starts sending the audio and video code stream according to the preset setting; if the channel bandwidth cannot meet the service requirement, the equipment automatically changes the coding bandwidth of the equipment according to the actual channel bandwidth and then starts to transmit the audio and video code stream; if the channel bandwidth is low enough to not meet the normal video conference, the equipment can discard the video code stream and send the audio code stream;
In order to adapt to satellite channels, a communication mode of uplink unicast and downlink multicast is adopted: the audio and video code streams of the ground equipment are unicast packed and then directly sent to the satellite through a satellite channel, the satellite receives the audio and video code streams and then carries out multicast packing on the data, and then the data are forwarded to a unified multicast address through the satellite channel, and the ground equipment participating in the group meeting receives the audio and video code streams from the multicast address.
2. A narrow bandwidth conferencing system based on the channel environment adaptation method of claim 1, comprising:
the data source module is used for converting the received audio and video code stream and the received equipment code stream into a unified protocol meeting the internal interface;
The target module is used for converting the unified protocol code stream transmitted by the internal interface of the system into code streams meeting different interfaces and different protocols, and supporting decoding display and transmission of the audio and video code stream;
the scheduling module is used for coordinating the internal code stream of the system, managing the connection relation between the data source module and the destination module and forwarding the media parameters of the coding end;
wherein,
In the data source module, after the audio and video code stream acquired by the audio and video acquisition equipment is encoded by the encoding unit, the audio and video code stream is packed according to the internal protocol of the system, and the packed code stream is sent through an internal UDP interface;
the device receives the video code stream of the external factor through different interfaces, firstly analyzes the video code stream, packs the analyzed code stream again according to the internal protocol of the system, and finally sends the code stream through a unified UDP interface;
In the target module, after receiving an audio and video code stream conforming to the internal protocol of the system, a UDP interface in the system decodes the unpacked code stream by a decoding unit and outputs the unpacked code stream to audio and video playing equipment for display;
After receiving the audio and video code stream conforming to the internal protocol of the system, the UDP interface in the system analyzes the audio and video code stream, packs the audio and video code stream again according to the corresponding protocol by the transmitting interface, and finally transmits the audio and video code stream through the interface;
after the audio and video group meeting is established by using a plurality of devices, the device serving as the center analyzes the self coding stream and the audio and video code streams of other devices received by different interfaces in the data source module, and then all the coded streams are sent to the decoding module in the destination module for decoding, and the decoded audio and video code streams are displayed in a multi-channel splicing manner in the playing display device of the center device.
3. A computer device comprising a memory and a processor, the processor and the memory in communication with each other, the memory storing program instructions executable by the processor, the processor invoking the program instructions to perform the channel environment adaptation method of claim 1.
4. An electronic device comprising a memory and a processor, the processor and the memory in communication with each other, the memory storing program instructions executable by the processor, the processor invoking the program instructions to perform the channel environment adaptation method of claim 1.
5. A computer readable storage medium, characterized in that it stores a computer program which, when executed by a processor, implements the channel environment adaptation method of claim 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210453921.8A CN115085790B (en) | 2022-04-24 | 2022-04-24 | Channel environment self-adaption method and narrow bandwidth conference system |
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| CN202210453921.8A CN115085790B (en) | 2022-04-24 | 2022-04-24 | Channel environment self-adaption method and narrow bandwidth conference system |
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| CN115085790A CN115085790A (en) | 2022-09-20 |
| CN115085790B true CN115085790B (en) | 2024-09-24 |
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