CN114142917B - Satellite channel selection method and device - Google Patents

Satellite channel selection method and device Download PDF

Info

Publication number
CN114142917B
CN114142917B CN202210041234.5A CN202210041234A CN114142917B CN 114142917 B CN114142917 B CN 114142917B CN 202210041234 A CN202210041234 A CN 202210041234A CN 114142917 B CN114142917 B CN 114142917B
Authority
CN
China
Prior art keywords
channel
test
satellite
data
error rate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202210041234.5A
Other languages
Chinese (zh)
Other versions
CN114142917A (en
Inventor
李世响
尹曙明
安建
何贤德
朱丽红
李孟
骆骁
刘善军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pla 61096 Unit
Original Assignee
Pla 61096 Unit
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pla 61096 Unit filed Critical Pla 61096 Unit
Priority to CN202210041234.5A priority Critical patent/CN114142917B/en
Publication of CN114142917A publication Critical patent/CN114142917A/en
Application granted granted Critical
Publication of CN114142917B publication Critical patent/CN114142917B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H04B7/18519—Operations control, administration or maintenance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • 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
    • H04B7/18521—Systems of inter linked satellites, i.e. inter satellite service

Abstract

The application provides a satellite channel selection method and a satellite channel selection device, wherein the satellite channel selection method comprises the following steps: receiving a channel test request, and determining a first channel and a second channel based on the channel test request, wherein the first channel is a data transmission channel, and the second channel is an error code test channel; determining a signal-to-noise value of the first channel based on the service data received by the first channel, and determining a channel error rate of the second channel based on the test data transmitted by the second channel; generating a channel switching instruction under the condition that the signal-to-noise ratio value is smaller than a preset signal-to-noise ratio threshold value and the channel error rate is smaller than a preset error rate threshold value; and responding to the channel switching instruction, switching the first channel into an error code test channel and switching the second channel into a data transmission channel. The satellite channel selection method improves the reliability of satellite communication service, is easy to construct by relying on the existing earth terminal, and is low in cost.

Description

Satellite channel selection method and device
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a satellite channel selection method. The present application is also directed to a satellite channel selection apparatus, a computing device, and a computer-readable storage medium.
Background
Satellite communication has the advantages of wide coverage, no limitation of geographical environment, excellent natural disaster resistance and the like, so that satellite communication is increasingly applied and the transmission traffic is also increasingly large. However, the satellite channel is a wireless channel, and the openness thereof causes that the satellite channel is easy to be interfered by the outside, thereby affecting the service communication quality.
Therefore, how to detect the channel transmission condition of the wireless channel, so as to improve the communication quality between the satellite and the terrestrial terminal is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the embodiments of the present application provide a satellite channel selection method. The application also relates to a satellite channel selection device, a computing device and a computer readable storage medium, so as to solve the problem that a wireless channel in the prior art is easy to be interfered and the communication transmission quality is affected.
According to a first aspect of an embodiment of the present application, there is provided a satellite channel selection method, including:
receiving a channel test request, and determining a first channel and a second channel based on the channel test request, wherein the first channel is a data transmission channel, and the second channel is an error code test channel;
Determining a signal-to-noise value of the first channel based on the service data received by the first channel, and determining a channel error rate of the second channel based on the test data transmitted by the second channel;
generating a channel switching instruction under the condition that the signal-to-noise ratio value is smaller than a preset signal-to-noise ratio threshold value and the channel error rate is smaller than a preset error rate threshold value;
and responding to the channel switching instruction, switching the first channel into an error code test channel and switching the second channel into a data transmission channel.
Optionally, determining the signal-to-noise value of the first channel based on the traffic data received by the first channel includes:
determining a modem in the first channel that receives and processes traffic data;
and acquiring the signal-to-noise value of the first channel in the modem.
Optionally, before receiving the channel test request, the method further includes:
a channel creation request is received and a first channel and a second channel are created based on the channel creation request.
Optionally, determining the channel error rate of the second channel based on the test data sent by the second channel includes:
transmitting test data to a target satellite based on the second channel;
Receiving to-be-processed test data returned by the target satellite based on the test data;
and determining the channel error rate of the second channel according to the test data and the test data to be processed.
Optionally, calculating the channel error rate of the second channel according to the test data and the to-be-processed test data includes:
counting the test data bit value of the test data and the to-be-processed test data bit value of the to-be-processed test data;
and calculating the channel error rate of the second channel based on the test data bit value and the to-be-processed test data bit value.
Optionally, before generating the channel switching instruction in the case that the signal-to-noise ratio value is smaller than a preset signal-to-noise ratio threshold and the channel error rate is smaller than a preset error rate threshold, the method further includes:
and determining the preset signal-to-noise ratio threshold based on the data modulation mode and the data coding mode of the first channel.
Optionally, the method further comprises:
and generating a channel abnormity alarm under the condition that the signal-to-noise ratio value is smaller than a preset signal-to-noise ratio threshold value and the channel error rate is larger than or equal to the preset error rate threshold value.
Optionally, in response to the channel switching instruction, switching the first channel to an error code test channel and switching the second channel to a data transmission channel includes:
Determining a control parameter in the channel switching instruction, wherein the control parameter comprises a first channel mode identifier and a second channel identifier;
switching the first channel from a data transmission channel to an error code test channel based on the first channel mode identification;
and switching the second channel from the error code test channel to a data transmission channel based on the second channel mode identification.
According to a second aspect of embodiments of the present application, there is provided a satellite channel selection apparatus, including:
the receiving module is configured to receive a channel test request and determine a first channel and a second channel based on the channel test request, wherein the first channel is a data transmission channel and the second channel is an error code test channel;
a determining module configured to determine a signal-to-noise value of the first channel based on traffic data received by the first channel, and determine a channel error rate of the second channel based on test data transmitted by the second channel;
the generation module is configured to generate a channel switching instruction under the condition that the signal-to-noise ratio value is smaller than a preset signal-to-noise ratio threshold value and the channel error rate is smaller than a preset error rate threshold value;
And the switching module is configured to switch the first channel into an error code test channel and switch the second channel into a data transmission channel in response to the channel switching instruction.
According to a third aspect of embodiments of the present application, there is provided a computing device comprising a memory, a processor and computer instructions stored on the memory and executable on the processor, the processor implementing the steps of the satellite channel selection method when executing the computer instructions.
According to a fourth aspect of embodiments of the present application, there is provided a computer readable storage medium storing computer instructions which, when executed by a processor, implement the steps of the satellite channel selection method.
According to the satellite channel selection method, a channel test request is received, and a first channel and a second channel are determined based on the channel test request, wherein the first channel is a data transmission channel, and the second channel is an error code test channel; determining a signal-to-noise value of the first channel based on the service data received by the first channel, and determining a channel error rate of the second channel based on the test data transmitted by the second channel; generating a channel switching instruction under the condition that the signal-to-noise ratio value is smaller than a preset signal-to-noise ratio threshold value and the channel error rate is smaller than a preset error rate threshold value; and responding to the channel switching instruction, switching the first channel into an error code test channel and switching the second channel into a data transmission channel.
According to the satellite channel selection method in the embodiment of the application, the problems of low data transmission quality, low efficiency and the like between the satellite and the earth terminal caused by interference of the wireless channel are avoided by carrying out channel quality test on the first channel and the second channel and increasing switching between the first channel and the second channel, so that the reliability of satellite data transmission service is improved.
Drawings
Fig. 1 is a flowchart of a satellite channel selection method according to an embodiment of the present application;
FIG. 2 is a process flow diagram of a satellite channel selection method for satellite A and satellite B according to one embodiment of the present application;
FIG. 3 is a schematic diagram of a channel according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an automatic routing device for signal vehicles according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a satellite channel selection device according to an embodiment of the present application;
FIG. 6 is a block diagram of a computing device according to one embodiment of the present application.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other ways than those herein described and similar generalizations can be made by those skilled in the art without departing from the spirit of the application and the application is therefore not limited to the specific embodiments disclosed below.
The terminology used in one or more embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of one or more embodiments of the application. As used in this application in one or more embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used in one or more embodiments of the present application refers to any or all possible combinations including one or more of the associated listed items.
It should be understood that, although the terms first, second, etc. may be used in one or more embodiments of the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, a first may also be referred to as a second, and similarly, a second may also be referred to as a first, without departing from the scope of one or more embodiments of the present application. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.
First, terms related to one or more embodiments of the present application will be explained.
Wireless channel: transparent path between transmitting end and receiving end in wireless communication.
In order to solve the problems that a wireless channel is easy to interfere and the service communication quality is affected, the satellite data routing device is arranged at the earth terminal and is matched with the satellite communication channel terminal for use, and reliable transmission of satellite data can be realized under the double-star condition.
In the present application, a satellite channel selection method is provided, and the present application relates to a satellite channel selection apparatus, a computing device, and a computer-readable storage medium, which are described in detail in the following embodiments.
Fig. 1 shows a flowchart of a satellite channel selection method according to an embodiment of the present application, which specifically includes the following steps:
step 102: and receiving a channel test request, and determining a first channel and a second channel based on the channel test request, wherein the first channel is a data transmission channel, and the second channel is an error code test channel.
At present, a wireless channel established between a satellite and a ground terminal is easy to be interfered by the outside due to the openness of the wireless channel, so that the transmission quality of service data in the wireless channel is affected. In order to avoid the influence caused by low transmission quality of the wireless channel, the error rate of the wireless channel is often required to be tested; however, in practical application, the real-time transmission of the service data and the error rate test of the wireless channel cannot be performed simultaneously in the same wireless channel, and further, the real-time monitoring of the error rate condition of the channel for transmitting the service data in real time cannot be realized.
In order to solve the above problem that the service data transmission and the bit error rate detection cannot be performed simultaneously in the same channel, before receiving the channel test request, communication connection between two different satellites and a target earth terminal is established, where the earth terminal may be a terminal capable of receiving satellite communication data, such as an earth station, a signal vehicle, etc., that is, two different wireless channels are established between the satellite and the earth terminal, for example, determining the satellite a and the satellite B, establishing a wireless channel between the satellite a and the earth station, and establishing a wireless channel between the satellite B and the earth station.
Specifically, after receiving the channel test request, determining a channel identifier in the channel test request, and determining a first channel and a second channel corresponding to the channel identifier based on the channel identifier, wherein the first channel and the second channel are channels established between the satellite and the earth terminal before receiving the channel test request; wherein, the channel test request refers to a request for testing the channel transmission quality of a channel between a satellite and an earth terminal; channel identification refers to a field that can uniquely represent a channel, e.g., channel identifications "c1", "c2", etc.; the first channel is a channel capable of carrying out real-time transmission of service data between a satellite and an earth terminal or carrying out error rate detection; the second channel also refers to a channel capable of carrying out real-time transmission of service data between the satellite and the earth terminal or carrying out error rate detection; the first channel can be used for carrying out real-time transmission of service data, the second channel can be used for carrying out detection of error rate, or the first channel can be used for carrying out detection of error rate, and the second channel can be used for carrying out real-time transmission of service data between the satellite and the earth terminal, namely, the two channels respectively carry out different data processing in the scheme.
The data transmission channel is a channel in a data transmission mode, and the error code test channel is a channel in an error code test mode; the channels in the application all comprise two data processing modes, namely a data transmission mode and an error code test mode, and one data processing mode can be triggered randomly to process data.
In this embodiment, for convenience of subsequent presentation, the first channel is used as a data transmission channel for transmitting service data between the satellite and the earth terminal, and the second channel is used as an error code test channel for performing error code test.
In a specific embodiment of the present application, taking a satellite a and a satellite B as examples, determining that the satellite a and the satellite B are respectively used for transmission of service data and detection of channel transmission quality; establishing a first channel between the satellite A and the signal vehicle, and establishing a second channel between the satellite B and the signal vehicle; after receiving the channel test request, determining a first channel and a second channel which are established in advance, setting the first channel as a data transmission channel, and setting the second channel as an error code test channel.
According to the scheme, two different channels are established between the received channel test requests, so that the two different channels for data transmission and error code test can be determined conveniently; after receiving the channel test request, determining two pre-established channels based on the channel test request, and setting the channels to different data processing modes, so that the subsequent processing of service data between the satellite and the earth terminal based on the two channels is facilitated.
Step 104: and determining a signal-to-noise value of the first channel based on the service data received by the first channel, and determining a channel error rate of the second channel based on the test data sent by the second channel.
After two different channels are determined and different data processing modes of the two channels are determined, channel quality testing of the channels is performed based on the two channels.
In this embodiment, the first channel is set as a channel for transmitting service data between the satellite and the earth terminal in real time, and the signal-to-noise ratio value of the first channel can be determined according to a modem for processing the service data, so that the current data transmission quality of the first channel is measured based on the signal-to-noise ratio.
In practical application, determining the signal-to-noise value of the first channel based on the service data received by the first channel includes:
determining a modem in the first channel that receives and processes traffic data;
and acquiring the signal-to-noise value of the first channel in the modem.
The modem is an electronic device for modulating and demodulating service data between a satellite and an earth terminal transmitted in a first channel, and generally consists of a modulator and a demodulator, wherein a digital signal generated by a computer can be modulated into an analog signal at a transmitting end of the modem, and an analog signal calculated by input can be converted into a digital signal in response at a receiving end of the modem; the signal-to-noise ratio value refers to the bit signal-to-noise ratio, E b /N 0 Wherein E is b Is the signal energy averaged onto each bit, N 0 Power spectral density, which is noise; service data refers to data transmitted between satellites and earth terminals, such as satellite positioning data, satellite television data, and the like; determiningAnd after the modem corresponding to the first channel, namely the modem for processing the service data transmitted in the first channel is determined, acquiring the current signal-to-noise ratio value in the attribute information of the modem, and taking the currently acquired signal-to-noise ratio value as the current signal-to-noise ratio value of the first channel.
In a specific embodiment of the present application, taking the first channel as an example, determining the positioning data transmitted in the first channel, determining the modem G for processing the positioning data, and obtaining the signal-to-noise value of the modem G when the positioning data is processed in the attribute information of the modem G, and taking the signal-to-noise value as the signal-to-noise value of the first channel.
And determining a corresponding modem of the first channel, acquiring a signal-to-noise ratio value in attribute information of the modem, and taking the signal-to-noise ratio value as a current signal-to-noise ratio value of the first channel, so that the subsequent determination of the transmission quality of the first channel based on the signal-to-noise ratio value of the first channel is facilitated.
The signal-to-noise ratio value of the first channel real-time transmission service data is determined, and simultaneously, the transmission quality of the second channel, namely, the channel error rate of the second channel can be determined based on the test data sent by the second channel.
Specifically, determining the channel error rate of the second channel based on the test data sent by the second channel includes:
transmitting test data to a target satellite based on the second channel;
receiving to-be-processed test data returned by the target satellite based on the test data;
and determining the channel error rate of the second channel according to the test data and the test data to be processed.
The test data refers to data for testing a channel error rate, for example, the channel test data is a data sequence 123445, etc., which is not specifically limited in the present application; the to-be-processed test data refers to data returned by the target satellite based on the second channel, and under the condition that the channel communication quality of the second channel is good, the test data and the to-be-processed data can be the same, namely all the test data sent to the target satellite are returned to the earth terminal, and the problems of data loss and the like do not occur in the transmission process; the target satellite is a satellite which receives the test data and is used for testing the error rate of the channel; the to-be-processed test data refers to data returned by the target satellite through a channel between the target satellite and the earth terminal after the target satellite receives the test data; the channel error rate refers to a value that measures the error condition of channel transmission, and can be obtained by dividing the error number by the total code number of channel transmission.
Specifically, in this embodiment, the second channel is set as the error code test mode, the earth terminal corresponding to the second channel is determined, and test data is sent to the target satellite by the earth terminal based on the second channel; after receiving the test data, the target satellite returns the test data to be processed to the earth terminal based on the second channel and the test data; the earth terminal determines a channel error rate of the second channel based on the test data and the test data to be processed.
In a specific embodiment of the present application, taking satellite B as an example, a signal vehicle corresponding to a second channel sends test data I to satellite B corresponding to the second channel; the satellite B receives the test data I and returns the received test data I based on a second channel; the signal vehicle receives the to-be-processed test data I1 returned by the satellite B; and determining the channel error rate of the second channel according to the test data I and the test data I1 to be processed.
In practical applications, the method for calculating the channel error rate of the second channel according to the test data and the test data to be processed may include:
counting the test data bit value of the test data and the to-be-processed test data bit value of the to-be-processed test data;
And calculating the channel error rate of the second channel based on the test data bit value and the to-be-processed test data bit value.
The test data bit value refers to the data bit number of the test data, for example, if the test data is the data sequence "123456", the data bit value of the test data is 6; the data bit value of the test data to be processed refers to the data bit number of the data to be processed, for example, the data bit value of the test data to be processed is 5 if the test data to be processed is the data sequence "12345"; after the test data bit value and the to-be-processed test data bit value are determined, whether the to-be-processed test data has an error code or not is determined according to the difference value of the test data bit value and the to-be-processed test data bit value, and the channel error rate of the second channel is calculated according to the error code number.
Specifically, the earth terminal counts the test data bit value of the test data and the test data bit value to be processed of the test data by starting a counter; under the condition that the test data bit value is inconsistent with the test data bit value to be processed, determining that an error code exists, recording the determined error code, and calculating the channel error rate of the second channel according to the code-free number and the total code number of transmission; in practical application, the calculated channel error rate can be displayed on the earth terminal, so that a technician can check the channel error rate at a time.
In a specific embodiment of the present application, taking test data T as an example, the test data T is "1236789", the test data T is sent to the satellite B based on the second channel, to obtain to-be-processed test data T1 returned by the satellite B based on the second channel is "123678", the bit value 7 of T and the bit value 6 of T1 are obtained in the counter, and due to inconsistent bit values, it is determined that the T1 has a 1-bit error code, the total number of transmitted data is 7, and the channel error rate of the second channel is 0.14 according to the total number of data 7 and the number of error codes 1.
The signal-to-noise value of the first channel is obtained in a modem for processing the service data of the first channel, so that the transmission quality of the first channel can be determined conveniently; based on the second channel sending and receiving test data, determining the channel error rate of the second channel, so as to facilitate the subsequent determination of the channel transmission quality of the second channel, and further facilitate the subsequent switching of the service data transmitted by the first channel to the second channel for transmission under the condition that the channel quality of the first channel is not satisfactory.
Step 106: and generating a channel switching instruction under the condition that the signal-to-noise ratio value is smaller than a preset signal-to-noise ratio threshold value and the channel error rate is smaller than a preset error rate threshold value.
After determining the signal-to-noise ratio value of the first channel and the channel error rate of the second channel, determining whether the transmission quality of the first channel and the second channel meets the requirement or not based on a preset signal-to-noise ratio threshold and a preset error rate threshold, wherein the preset signal-to-noise ratio threshold is a preset signal-to-noise ratio value, and the preset error rate threshold is a preset channel error rate; and under the condition that the signal-to-noise ratio value is smaller than a Yu Yushe signal-to-noise ratio threshold and the channel error rate is smaller than a preset error rate threshold, generating a channel switching instruction, namely generating an instruction for switching the channel for transmitting the service data in real time.
In practical application, the preset signal-to-noise ratio threshold may be set based on practical requirements, which is not specifically limited in this application.
Preferably, in order to improve the reliability of the preset snr threshold, the preset snr threshold may be determined based on the data coding scheme of the channel and the data modulation scheme of the channel.
Specifically, before generating the channel switching instruction, the method further includes:
and determining the preset signal-to-noise ratio threshold based on the data modulation mode and the data coding mode of the first channel.
The data modulation mode refers to a method of loading a signal to be transmitted into a high-frequency signal, for example, the data modulation modes are BPSK (Binary Phase Shift Keying), QPSK (Quadrature Phase Shift Keying) and the like; the data encoding method is an encoding method for performing error correction and error detection encoding on a digital signal in a channel, and is, for example, 1/2 convolution, LDPC (Low Density Parity Check Code) 1/2, and the like.
In a specific embodiment of the present application, the preset snr threshold may be determined based on a modulation mode and a coding mode of the channel, where the specific modulation mode, coding mode, and snr value (E b /N 0 ) The correspondence of (2) is shown in the following table 1:
TABLE 1
For further explanation of the above table 1 by taking modulation scheme BPSK as an example, when the data modulation scheme of the radio channel is BPSK and the coding scheme is 1/2 convolution, E in table 1 can be calculated b /N 0 The value 6.8 is set as a preset signal-to-noise ratio threshold, that is, when the signal-to-noise ratio value of the wireless channel is greater than or equal to the preset signal-to-noise ratio threshold 6.8, the transmission quality of the wireless channel meets the requirement, and when the signal-to-noise ratio value of the wireless channel is less than the preset signal-to-noise ratio threshold 6.8, the transmission quality of the wireless channel does not meet the requirement.
In practical applications, the setting of the preset bit error rate threshold may be based on the actual requirement of the channel transmission quality, which is not specifically limited in the present application, for example, in a specific embodiment of the present application, the preset bit error rate threshold is 10E-7.
After the preset signal-to-noise ratio threshold is determined, comparing the signal-to-noise ratio value of the first channel with the preset signal-to-noise ratio threshold, wherein the signal-to-noise ratio value is larger than or equal to the preset signal-to-noise ratio threshold, the data transmission quality of the first channel meets the requirement, namely, the first channel can continue to transmit real-time business data, and the signal-to-noise ratio value is smaller than the preset signal-to-noise ratio threshold, the data transmission quality of the first channel does not meet the requirement, and the channel is required to be switched to transmit the data transmitted in the first channel.
After the preset bit error rate threshold is determined, the preset bit error rate threshold is compared with the channel bit error rate of the second channel, and when the channel bit error rate is smaller than the preset bit error rate threshold, the data transmission quality of the second channel meets the requirements, and when the channel bit error rate is larger than or equal to the preset bit error rate threshold, the data transmission quality of the second channel does not meet the requirements.
In practical application, the situation that the signal-to-noise ratio value of the first channel is smaller than the preset signal-to-noise ratio threshold and the channel error rate of the second channel is larger than or equal to the preset error rate threshold may occur, that is, the data transmission quality of the first channel and the data transmission quality of the second channel do not meet the requirements, then a channel abnormality prompt needs to be sent at this time, which specifically includes:
and generating a channel abnormity alarm under the condition that the signal-to-noise ratio value is smaller than a preset signal-to-noise ratio threshold value and the channel error rate is larger than or equal to the preset error rate threshold value.
Specifically, when the signal-to-noise ratio value of the first channel is judged to be smaller than a preset signal-to-noise ratio threshold value and the channel error rate of the second channel is judged to be larger than or equal to the preset error rate threshold value, a channel abnormality alarm is generated to prompt that neither the first channel nor the second channel is available.
And under the condition that the first channel and the second channel are unavailable, a channel abnormality alarm is sent out, so that relevant technicians or abnormality processing equipment can conveniently process abnormal conditions of the channels.
Step 108: and responding to the channel switching instruction, switching the first channel into an error code test channel and switching the second channel into a data transmission channel.
And under the condition that the data transmission quality of the first channel does not meet the requirement and the data transmission quality of the second channel meets the requirement, switching the channel for transmitting the service data in real time from the first channel to the second channel.
Specifically, in response to the channel switching instruction, the method for switching the first channel to the error code test channel and switching the second channel to the data transmission channel includes:
determining a control parameter in the channel switching instruction, wherein the control parameter comprises a first channel mode identifier and a second channel identifier;
switching the first channel from a data transmission channel to an error code test channel based on the first channel mode identification;
and switching the second channel from the error code test channel to a data transmission channel based on the second channel mode identification.
The channel switching instruction refers to an instruction for switching channels for transmitting service data between the satellite and the earth terminal in real time; the control parameter is a parameter for controlling channel switching, and the control parameter comprises a first channel mode identifier and a second channel identifier mode, wherein the first channel mode identifier is a mode parameter for identifying the first channel after switching the data processing mode, and the second channel mode identifier is a mode parameter for identifying the second channel after switching the data processing mode.
Specifically, a channel switching instruction is received, and control parameters in the channel switching instruction are determined; determining that the data processing mode of the first channel after the channel is switched is an error code detection mode based on the first channel mode identification in the control parameter, and determining that the data processing mode of the second channel after the channel is switched is a data transmission mode based on the second channel mode identification in the control parameter; after the channels are switched, the second channel is used for transmitting the service data between the satellite and the earth station in real time, and the second channel is used for detecting the error rate of the channel, namely, the error rate of the second channel is monitored in real time.
In a specific embodiment of the present application, taking a satellite a and a satellite B as examples, a first channel for transmitting service data in real time is established between the satellite a and the earth station G, and a second channel for detecting a channel error rate is established between the satellite B and the earth station G; after the earth station A receives the channel switching instruction, the data transmission mode of the first channel is switched to the error code test mode based on the channel switching instruction, and the error code test mode of the second channel is modified to be the data transmission mode.
According to the satellite channel selection method, a channel test request is received, and a first channel and a second channel are determined based on the channel test request, wherein the first channel is a data transmission channel, and the second channel is an error code test channel; determining a signal-to-noise value of the first channel based on the service data received by the first channel, and determining a channel error rate of the second channel based on the test data transmitted by the second channel; generating a channel switching instruction under the condition that the signal-to-noise ratio value is smaller than a preset signal-to-noise ratio threshold value and the channel error rate is smaller than a preset error rate threshold value; and responding to the channel switching instruction, switching the first channel into an error code test channel and switching the second channel into a data transmission channel.
According to the satellite channel selection method in the embodiment of the application, the reliability of satellite data transmission service is improved by carrying out channel quality test on the first channel and the second channel and switching between the first channel and the second channel, and the problems of low data transmission quality, low efficiency and the like between the satellite and the earth terminal caused by interference of the wireless channel are avoided.
The satellite channel selection method provided in the present application is further described below with reference to fig. 2, by taking an application of the satellite channel selection method to a satellite a and a satellite B as an example. Fig. 2 shows a process flow chart of a satellite channel selection method applied to a satellite a and a satellite B according to an embodiment of the present application, which specifically includes the following steps:
step 202: a first channel between satellite a and the earth station and a second channel between satellite B and the earth station are established.
Specifically, as shown in fig. 3, fig. 3 is a schematic channel diagram provided in an embodiment of the present application, where the data routing device is disposed at an earth station, and is used for the earth station to receive service data sent by a satellite or send service data to the satellite, and the radio frequency link refers to a first channel and a second channel established between the satellite and the earth station.
Step 204: the data processing modes of the first channel and the second channel are initialized based on the channel test request.
Specifically, a channel test request is received, a first channel is set to be a data transmission mode based on the channel test request, and real-time transmission of service data between a satellite A and an earth station is realized based on the first channel; and setting the second channel to a channel test mode, and calculating the channel error rate of the second channel based on the test data sent by the second channel.
Step 206: and acquiring the signal-to-noise value of the first channel in the modem corresponding to the first channel, and acquiring the channel error rate of the second channel.
Specifically, determining a modem corresponding to the first channel, and acquiring a signal-to-noise value in the attribute information of the modem, wherein the signal-to-noise value is used as the signal-to-noise value of the first channel; the earth station generates test data based on the channel test request and sends the test data to the satellite B based on the second channel; the earth station receives to-be-processed test data returned by the satellite B based on the test data, and determines the channel error rate of the second channel based on the test data and the to-be-processed test data.
Step 208: judging whether the signal-to-noise ratio value of the first channel is larger than or equal to a preset signal-to-noise ratio threshold value; if yes, go on to step 206; if not, go to step 210.
Specifically, a preset signal-to-noise ratio threshold is determined according to a modulation mode and a coding mode in the first channel, the signal-to-noise ratio value is compared with the preset signal-to-noise ratio threshold, and when the signal-to-noise ratio value is larger than or equal to the preset signal-to-noise ratio threshold, the data transmission quality of the first channel meets the requirement, and after a preset time threshold is 30 seconds, the signal-to-noise ratio value is compared with the preset signal-to-noise ratio threshold again until the end quality of the channel test is received; in the case where the snr value is less than the Yu Yushe snr threshold, then step 210 is performed.
Step 210: judging whether the channel error rate of the second channel is smaller than a preset error rate threshold value or not; if yes, go to step 212; if not, go to step 214.
Specifically, the channel error rate of the second channel is compared with a preset error rate threshold value; if the channel error rate is smaller than the preset error rate threshold, the data transmission quality of the second channel meets the requirement, and then step 212 is continuously executed; if the channel error rate is greater than or equal to the preset error rate threshold, it indicates that the data transmission quality of the first channel and the second channel do not meet the requirement, then step 214 is executed.
Step 212: and switching the data processing mode of the first channel to an error code test mode, and switching the data processing mode of the second channel to a data transmission mode.
Specifically, switching the data processing mode of the first channel and the data mode of the second channel; after switching the data processing mode of the first channel to the error code test mode and switching the data processing mode of the second channel to the data transmission mode, the channel error rate can be obtained based on the first channel, and the signal to noise ratio value can be obtained based on the second channel.
Step 214: indicating that the dual channel is not available.
Specifically, a channel anomaly alert is generated indicating that neither the first channel nor the second channel is available.
According to the satellite channel selection method, a channel test request is received, and a first channel and a second channel are determined based on the channel test request, wherein the first channel is a data transmission channel, and the second channel is an error code test channel; determining a signal-to-noise value of the first channel based on the service data received by the first channel, and determining a channel error rate of the second channel based on the test data transmitted by the second channel; generating a channel switching instruction under the condition that the signal-to-noise ratio value is smaller than a preset signal-to-noise ratio threshold value and the channel error rate is smaller than a preset error rate threshold value; and responding to the channel switching instruction, switching the first channel into an error code test channel and switching the second channel into a data transmission channel.
According to the satellite channel selection method in the embodiment of the application, the reliability of satellite data transmission service is improved through the increased switching between the first channel and the second channel, and the problems of low data transmission quality, low efficiency and the like caused by interference of the wireless channel are avoided.
The satellite channel selection method is further described below with reference to fig. 4. Fig. 4 shows a schematic diagram of an automatic routing device applied to a signal vehicle according to an embodiment of the present application, which is specifically as follows:
in this embodiment, two data processing modules, two error code detection modules, and a switching control module are disposed in the signal vehicle.
A first channel is established between the signal vehicle and the satellite A, and a data processing module and an error code detection module in the part A in FIG. 4 are processing modules for processing data between the satellite A and an earth station; a second channel is established between the earth station and the satellite B, and the data processing module and the error code detection module in part B in fig. 4 are processing modules for processing data between the satellite B and the earth station. And under the condition that the channel test request is received, setting the first channel into a data transmission mode and setting the second channel into an error code test mode.
The earth station receives data D based on the first channel and inputs the data D to the data processing module. Specifically, the data D is input to the data processing module in the portion a in fig. 4, where the data processing module is configured to perform protocol conversion on the data D, and may perform data conversion on the RJ45 or the RS422 to obtain data identifiable by the ethernet, and the data processing module provides two paths of RS422 output interfaces, one path is connected to the switching module, and the other path is connected to the error code detection module, where the error code detection module detects the quality of the guard channel in real time and reports the result to the switching control module.
Transmitting the data D after protocol conversion to a switching control module, wherein the switching control module acquires Eb/N0 values of modems corresponding to the first channels in real time, and when the Eb/N0 values are lower than a set threshold value and the error rate of the second channels is lower than a preset error rate threshold value, the switching control module issues control parameters to switch the channels, and the first channels are set and switched to the second channels, namely, the second channels are used for transmitting service data in real time. And simultaneously, converting the modem corresponding to the first channel into an error code test mode for error code rate test. And switching the modem of the second channel into a data transmission mode, and collecting Eb/N0 values in the modem of the second channel in real time.
The error code detection module mainly comprises a transmitting part and a receiving part, wherein a transmitting end test code generator generates a known test digital sequence, namely test data, the test data is coded and modulated by a modem and then is sent to the input end of a tested sanitary channel, namely an input satellite B, the test data is transmitted by the tested sanitary channel and then is output, and the test data is demodulated by a receiving end modem and then is sent to the receiving part of the error code detection module for decoding. The test code generator of the receiving part generates the same and synchronous digital sequence as the sending part, compares the synchronous digital sequence with the received digital sequence, namely the to-be-processed test data, starts a counter to count the bit number of the error code, if the bit number is inconsistent, the bit number is the error code, records, stores and analyzes the error code number, and displays the test result of the error code rate.
According to the satellite channel selection method, the data routing device is arranged on the earth terminal, so that the reliability of satellite communication service can be remarkably improved, the system constructed based on the satellite and the data routing device is simple in composition, easy to build by relying on the earth terminal such as the existing satellite earth station, simple in structure, low in cost and easy to realize.
Corresponding to the above method embodiment, the present application further provides an embodiment of a satellite channel selection device, and fig. 5 shows a schematic structural diagram of a satellite channel selection device according to an embodiment of the present application. As shown in fig. 5, the apparatus includes:
a receiving module 502 configured to receive a channel test request, and determine a first channel and a second channel based on the channel test request, wherein the first channel is a data transmission channel, and the second channel is an error code test channel;
a determining module 504 configured to determine a signal-to-noise value of the first channel based on traffic data received by the first channel, and determine a channel error rate of the second channel based on test data transmitted by the second channel;
a generating module 506 configured to generate a channel switching instruction if the signal-to-noise ratio value is less than a preset signal-to-noise ratio threshold and the channel error rate is less than a preset error rate threshold;
and a switching module 508, configured to switch the first channel to an error code test channel and switch the second channel to a data transmission channel in response to the channel switching instruction.
Optionally, the determining module 504 is further configured to:
Determining a modem in the first channel that receives and processes traffic data;
and acquiring the signal-to-noise value of the first channel in the modem.
Optionally, the determining module 504 is further configured to:
transmitting test data to a target satellite based on the second channel;
receiving to-be-processed test data returned by the target satellite based on the test data;
and determining the channel error rate of the second channel according to the test data and the test data to be processed.
Optionally, the determining module 504 is further configured to:
counting the test data bit value of the test data and the to-be-processed test data bit value of the to-be-processed test data;
and calculating the channel error rate of the second channel based on the test data bit value and the to-be-processed test data bit value.
Optionally, the apparatus further comprises a determination submodule configured to:
and determining the preset signal-to-noise ratio threshold based on the data modulation mode and the data coding mode of the first channel.
Optionally, the apparatus further comprises an alarm module configured to:
and generating a channel abnormity alarm under the condition that the signal-to-noise ratio value is smaller than a preset signal-to-noise ratio threshold value and the channel error rate is larger than or equal to the preset error rate threshold value.
Optionally, the apparatus further comprises a creation module configured to:
a channel creation request is received and a first channel and a second channel are created based on the channel creation request.
Optionally, the switching module 508 is further configured to:
determining a control parameter in the channel switching instruction, wherein the control parameter comprises a first channel mode identifier and a second channel identifier;
switching the first channel from a data transmission channel to an error code test channel based on the first channel mode identification;
and switching the second channel from the error code test channel to a data transmission channel based on the second channel mode identification.
According to the satellite channel selection device, a receiving module receives a channel test request, and determines a first channel and a second channel based on the channel test request, wherein the first channel is a data transmission channel, and the second channel is an error code test channel; a determining module, configured to determine a signal-to-noise value of the first channel based on the service data received by the first channel, and determine a channel error rate of the second channel based on the test data sent by the second channel; the generation module is used for generating a channel switching instruction under the condition that the signal-to-noise ratio value is smaller than a preset signal-to-noise ratio threshold value and the channel error rate is smaller than a preset error rate threshold value; and the switching module is used for switching the first channel into an error code test channel and switching the second channel into a data transmission channel in response to the channel switching instruction.
The satellite channel selection device realizes channel quality test and switching between the first channel and the second channel through the first channel and the second channel, improves the reliability of satellite data transmission service, and avoids the problems of low data transmission quality, low efficiency and the like between the satellite and the earth terminal caused by interference of a wireless channel
The above is an exemplary scheme of a satellite channel selection apparatus of the present embodiment. It should be noted that, the technical solution of the satellite channel selection device and the technical solution of the satellite channel selection method belong to the same concept, and details of the technical solution of the satellite channel selection device, which are not described in detail, can be referred to the description of the technical solution of the satellite channel selection method.
Fig. 6 illustrates a block diagram of a computing device 600 provided in accordance with an embodiment of the present application. The components of computing device 600 include, but are not limited to, memory 610 and processor 620. The processor 620 is coupled to the memory 610 via a bus 630 and a database 650 is used to hold data.
Computing device 600 also includes access device 640, access device 640 enabling computing device 600 to communicate via one or more networks 660. Examples of such networks include the Public Switched Telephone Network (PSTN), a Local Area Network (LAN), a Wide Area Network (WAN), a Personal Area Network (PAN), or a combination of communication networks such as the internet. The access device 640 may include one or more of any type of network interface (e.g., a Network Interface Card (NIC)) whether wired or wireless, such as an IEEE802.11 Wireless Local Area Network (WLAN) wireless interface, a worldwide interoperability for microwave access (Wi-MAX) interface, an ethernet interface, a Universal Serial Bus (USB) interface, a cellular network interface, a bluetooth interface, a Near Field Communication (NFC) interface, and so forth.
In one embodiment of the present application, the above-described components of computing device 600, as well as other components not shown in FIG. 6, may also be connected to each other, such as by a bus. It should be understood that the block diagram of the computing device illustrated in FIG. 6 is for exemplary purposes only and is not intended to limit the scope of the present application. Those skilled in the art may add or replace other components as desired.
Computing device 600 may be any type of stationary or mobile computing device, including a mobile computer or mobile computing device (e.g., tablet, personal digital assistant, laptop, notebook, netbook, etc.), mobile phone (e.g., smart phone), wearable computing device (e.g., smart watch, smart glasses, etc.), or other type of mobile device, or a stationary computing device such as a desktop computer or PC. Computing device 600 may also be a mobile or stationary server.
Wherein the processor 620, when executing the computer instructions, implements the steps of the satellite channel selection method.
The foregoing is a schematic illustration of a computing device of this embodiment. It should be noted that, the technical solution of the computing device and the technical solution of the satellite channel selection method belong to the same concept, and details of the technical solution of the computing device, which are not described in detail, can be referred to the description of the technical solution of the satellite channel selection method.
An embodiment of the present application also provides a computer-readable storage medium storing computer instructions that, when executed by a processor, implement the steps of the satellite channel selection method as described above.
The above is an exemplary version of a computer-readable storage medium of the present embodiment. It should be noted that, the technical solution of the storage medium and the technical solution of the satellite channel selection method belong to the same concept, and details of the technical solution of the storage medium which are not described in detail can be referred to the description of the technical solution of the satellite channel selection method.
The foregoing describes specific embodiments of the present application. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
The computer instructions include computer program code that may be in source code form, object code form, executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the computer readable medium contains content that can be appropriately scaled according to the requirements of jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is subject to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.
It should be noted that, for the sake of simplicity of description, the foregoing method embodiments are all expressed as a series of combinations of actions, but it should be understood by those skilled in the art that the present application is not limited by the order of actions described, as some steps may be performed in other order or simultaneously in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily all necessary for the present application.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.
The above-disclosed preferred embodiments of the present application are provided only as an aid to the elucidation of the present application. Alternative embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the teaching of this application. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. This application is to be limited only by the claims and the full scope and equivalents thereof.

Claims (10)

1. A satellite channel selection method, comprising:
receiving a channel test request, and determining a first channel and a second channel based on the channel test request, wherein the first channel is a data transmission channel, and the second channel is an error code test channel;
determining a signal-to-noise value of the first channel based on the service data received by the first channel, and determining a channel error rate of the second channel based on the test data transmitted by the second channel;
generating a channel switching instruction under the condition that the signal-to-noise ratio value is smaller than a preset signal-to-noise ratio threshold value and the channel error rate is smaller than a preset error rate threshold value;
and responding to the channel switching instruction, switching the first channel into an error code test channel and switching the second channel into a data transmission channel.
2. The satellite channel selection method of claim 1, wherein determining the signal-to-noise value of the first channel based on traffic data received by the first channel comprises:
determining a modem in the first channel that receives and processes traffic data;
and acquiring the signal-to-noise value of the first channel in the modem.
3. The satellite channel selection method of claim 1, wherein determining a channel error rate of the second channel based on the test data transmitted by the second channel comprises:
transmitting test data to a target satellite based on the second channel;
receiving to-be-processed test data returned by the target satellite based on the test data;
and determining the channel error rate of the second channel according to the test data and the test data to be processed.
4. A satellite channel selection method according to claim 3, wherein calculating the channel error rate of the second channel from the test data and the test data to be processed comprises:
counting the test data bit value of the test data and the to-be-processed test data bit value of the to-be-processed test data;
and calculating the channel error rate of the second channel based on the test data bit value and the to-be-processed test data bit value.
5. The satellite channel selection method of claim 1, wherein, before generating the channel switch instruction, if the signal-to-noise ratio value is less than a preset signal-to-noise ratio threshold and the channel error rate is less than a preset error rate threshold, further comprising:
And determining the preset signal-to-noise ratio threshold based on the data modulation mode and the data coding mode of the first channel.
6. The satellite channel selection method of claim 1, wherein the method further comprises:
and generating a channel abnormity alarm under the condition that the signal-to-noise ratio value is smaller than a preset signal-to-noise ratio threshold value and the channel error rate is larger than or equal to the preset error rate threshold value.
7. The satellite channel selection method of claim 1, wherein switching the first channel to a bit error test channel and switching the second channel to a data transmission channel in response to the channel switching instruction comprises:
determining a control parameter in the channel switching instruction, wherein the control parameter comprises a first channel mode identifier and a second channel mode identifier;
switching the first channel from a data transmission channel to an error code test channel based on the first channel mode identification;
and switching the second channel from the error code test channel to a data transmission channel based on the second channel mode identification.
8. A satellite channel selection apparatus, comprising:
the receiving module is configured to receive a channel test request and determine a first channel and a second channel based on the channel test request, wherein the first channel is a data transmission channel and the second channel is an error code test channel;
A determining module configured to determine a signal-to-noise value of the first channel based on traffic data received by the first channel, and determine a channel error rate of the second channel based on test data transmitted by the second channel;
the generation module is configured to generate a channel switching instruction under the condition that the signal-to-noise ratio value is smaller than a preset signal-to-noise ratio threshold value and the channel error rate is smaller than a preset error rate threshold value;
and the switching module is configured to switch the first channel into an error code test channel and switch the second channel into a data transmission channel in response to the channel switching instruction.
9. A computing device comprising a memory, a processor, and computer instructions stored on the memory and executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method of any one of claims 1-7.
10. A computer readable storage medium storing computer instructions which, when executed by a processor, implement the steps of the method of any one of claims 1-7.
CN202210041234.5A 2022-01-14 2022-01-14 Satellite channel selection method and device Active CN114142917B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210041234.5A CN114142917B (en) 2022-01-14 2022-01-14 Satellite channel selection method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210041234.5A CN114142917B (en) 2022-01-14 2022-01-14 Satellite channel selection method and device

Publications (2)

Publication Number Publication Date
CN114142917A CN114142917A (en) 2022-03-04
CN114142917B true CN114142917B (en) 2024-03-19

Family

ID=80381784

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210041234.5A Active CN114142917B (en) 2022-01-14 2022-01-14 Satellite channel selection method and device

Country Status (1)

Country Link
CN (1) CN114142917B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114614924A (en) * 2022-03-14 2022-06-10 珠海莲鸿科技有限公司 Channel switching method and device of communication module and electronic equipment
CN114945147A (en) * 2022-07-12 2022-08-26 北京智芯半导体科技有限公司 Low-power-consumption sensor network channel adjusting method and device, electronic equipment and medium

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07273706A (en) * 1994-03-28 1995-10-20 Nec Corp Satellite line switching system
WO1996024995A2 (en) * 1995-02-06 1996-08-15 Adc Telecommunications, Inc. Method of communication channel monitoring using parity bits
US6385773B1 (en) * 1999-01-07 2002-05-07 Cisco Techology, Inc. Method and apparatus for upstream frequency channel transition
CN1479540A (en) * 1997-09-10 2004-03-03 松下电器产业株式会社 Channel switchover device and channel switchover method
CN101252769A (en) * 2007-01-12 2008-08-27 财团法人工业技术研究院 Systems and methods for channel selections management in a wireless communication network
WO2014180378A1 (en) * 2013-11-06 2014-11-13 中兴通讯股份有限公司 Millimeter wave directional link switchover method, link switchover implementation device, and storage medium
CN104468032A (en) * 2014-11-04 2015-03-25 北京邮电大学 Self-adaptive coding modulation beam switching method for mobile broadband satellite communication system applied to high-speed railway
CN104968023A (en) * 2015-06-10 2015-10-07 小米科技有限责任公司 Working channel adjusting method, device and equipment
CN106160848A (en) * 2015-03-24 2016-11-23 中兴通讯股份有限公司 The error-code testing method of a kind of multichannel system, device and system
CN111417149A (en) * 2020-02-27 2020-07-14 上海易沐科技有限公司 Electric vehicle, charging pile and channel selection method for wireless communication
CN113328791A (en) * 2021-07-01 2021-08-31 北京微纳星空科技有限公司 Satellite communication device and satellite communication method
CN113365315A (en) * 2020-03-03 2021-09-07 华为技术有限公司 Gateway station switching method and device

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07273706A (en) * 1994-03-28 1995-10-20 Nec Corp Satellite line switching system
WO1996024995A2 (en) * 1995-02-06 1996-08-15 Adc Telecommunications, Inc. Method of communication channel monitoring using parity bits
CN1479540A (en) * 1997-09-10 2004-03-03 松下电器产业株式会社 Channel switchover device and channel switchover method
US6385773B1 (en) * 1999-01-07 2002-05-07 Cisco Techology, Inc. Method and apparatus for upstream frequency channel transition
CN101252769A (en) * 2007-01-12 2008-08-27 财团法人工业技术研究院 Systems and methods for channel selections management in a wireless communication network
WO2014180378A1 (en) * 2013-11-06 2014-11-13 中兴通讯股份有限公司 Millimeter wave directional link switchover method, link switchover implementation device, and storage medium
CN104468032A (en) * 2014-11-04 2015-03-25 北京邮电大学 Self-adaptive coding modulation beam switching method for mobile broadband satellite communication system applied to high-speed railway
CN106160848A (en) * 2015-03-24 2016-11-23 中兴通讯股份有限公司 The error-code testing method of a kind of multichannel system, device and system
CN104968023A (en) * 2015-06-10 2015-10-07 小米科技有限责任公司 Working channel adjusting method, device and equipment
CN111417149A (en) * 2020-02-27 2020-07-14 上海易沐科技有限公司 Electric vehicle, charging pile and channel selection method for wireless communication
CN113365315A (en) * 2020-03-03 2021-09-07 华为技术有限公司 Gateway station switching method and device
CN113328791A (en) * 2021-07-01 2021-08-31 北京微纳星空科技有限公司 Satellite communication device and satellite communication method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
一种无人机数据链信道选择和功率控制方法;张文秋等;北京航空航天大学学报;20170331;43(3);全文 *

Also Published As

Publication number Publication date
CN114142917A (en) 2022-03-04

Similar Documents

Publication Publication Date Title
CN114142917B (en) Satellite channel selection method and device
US6850736B2 (en) Method and apparatus for reception quality indication in wireless communication
CN110754106A (en) Wireless link monitoring method and device
EP1863309A1 (en) Mobile terminal of cdma system, mobile communication method of cdma system, and communication quality estimating method
EP2031918A2 (en) Systems and methods for mobile phone validation
CN101978719A (en) System and method for utilizing spectral resources in wireless communications
CN108471625A (en) Internet of Things radio communication quality automatic monitoring method and the equipment for realizing this method
US20230081108A1 (en) Fault-Tolerant Method for Demodulating 5G or 6G Messages
WO2023123688A1 (en) Signal transmission method, signal transmission apparatus, and electronic device
US20150117186A1 (en) Wireless access point device and band control method
US8401117B1 (en) Method of adaptive modulation for cognitive radios using a fast and simplified modulation recognition
US6714912B2 (en) Digital cordless phone system for improving distance of speech communication using error concealment and method thereof
CN109152067B (en) Transmission method of scheduling request and related equipment
US7598908B2 (en) Method and apparatus for reducing interference in a wireless device
CN114286457B (en) Shipborne terminal multi-mode communication method integrating VDES, beidou No. three and 4G/5G networks
EP1895699A2 (en) Modulation scheme deciding apparatus, receiving apparatus, modulation scheme deciding method and modulation scheme deciding program
CN101764667B (en) Wireless transmitting apparatus and method and wireless communication system
EP3993297A1 (en) Channel quality reporting method, device and system
US20210029014A1 (en) Method and device for controlling transmission rate of a device under test
JP2010130439A (en) Radio relay system
US8064396B2 (en) Communication method and a radio system
CN113811000A (en) Resource configuration method, channel measurement method, device and equipment
US11889329B2 (en) Radio performance measurement system, radio performance measurement method, radio performance measurement device, and radio performance measurement program
US6359937B1 (en) Method and apparatus for performing analog mode operations when transmitting audio and data in a wireless TDMA system
US20230283400A1 (en) Information transmission method and apparatus

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant