CN112532348B - Link adaptation method, device, equipment and storage medium based on communication channel - Google Patents
Link adaptation method, device, equipment and storage medium based on communication channel Download PDFInfo
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- CN112532348B CN112532348B CN202011316236.8A CN202011316236A CN112532348B CN 112532348 B CN112532348 B CN 112532348B CN 202011316236 A CN202011316236 A CN 202011316236A CN 112532348 B CN112532348 B CN 112532348B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
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- 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
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- 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
- H04B17/318—Received signal strength
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- 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]
Abstract
The embodiment of the application discloses a link self-adaption method, a device, equipment and a storage medium based on a communication channel. According to the technical scheme provided by the embodiment of the application, the test packets are sent according to different link self-adaptive strategies under different channel environments of each communication channel to obtain the communication quality test result, the strategy priority levels are set for the link self-adaptive strategies of each communication channel under different channel environments according to the communication quality test result, and when data are required to be sent to the user terminal, the link self-adaptive strategy suitable for the current channel environment is selected to carry out data transmission according to the channel environment of the target communication channel and the strategy priority level under the current channel environment, so that the flexibility of link self-adaptation is effectively improved.
Description
Technical Field
The present disclosure relates to the field of link adaptation technologies, and in particular, to a link adaptation method, apparatus, device, and storage medium based on a communication channel.
Background
The physical layer of the internet of things supports a link adaptation technology, and in order to optimize system capacity and coverage at a certain transmission power, a transmitter should match a data transmission rate and received signal quality, the optimization is called link adaptation, that is, channel variation requires adaptive adjustment of transmission parameters.
Generally, the link adaptation is performed directly according to the channel environment, and the flexibility of the link adaptation is poor.
Disclosure of Invention
Embodiments of the present application provide a link adaptation method, apparatus, device, and storage medium based on a communication channel, so as to improve flexibility of link adaptation.
In a first aspect, an embodiment of the present application provides a link adaptation method based on a communication channel, including:
based on each communication channel, sending test packets under different channel environments of the communication channel according to different link self-adaptive strategies, and counting communication quality test results of each communication channel under different link self-adaptive strategies and channel environment combinations;
determining a strategy sorting result of the communication quality test result of the link self-adaptive strategy under different channel environments according to the communication quality test result, and setting strategy priority levels for the link self-adaptive strategies of each communication channel under different channel environments based on the strategy sorting result;
and determining a target communication channel for transmitting data to the user terminal and a channel environment of the target communication channel, and selecting a link self-adaption strategy according to the strategy priority and the channel environment.
Further, the sending a test packet in different channel environments of the communication channel according to different link adaptation strategies based on each communication channel, and counting a communication quality test result of transmission of the test packet of each communication channel in different link adaptation strategies and channel environment combinations includes:
determining transmission parameters according to different link self-adaptive strategies under different channel environments based on each communication channel, and issuing a test packet to a test terminal based on the transmission parameters;
and determining the corresponding communication quality test results of each communication channel under different link self-adaptive strategies and channel environment combinations according to the transmission quality parameters reported by the test terminal.
Further, the determining a policy ranking result of the communication quality test result of the link adaptation policy in different channel environments according to the communication quality test result, and setting a policy priority level for the link adaptation policy of each communication channel in different channel environments based on the policy ranking result includes:
for each communication channel, sequencing link self-adaption strategies corresponding to different channel environments according to the sequence of the communication quality test results from large to small to obtain strategy sequencing results;
and setting a strategy priority level for the link self-adaption strategy of each communication channel under different channel environments based on the strategy sorting result.
Further, the determining a target communication channel for transmitting data to the user terminal includes:
in response to a data transmission request for transmitting data to a user terminal, determining whether the data transmission request specifies a communication channel;
if the data transmission request specifies a communication channel, determining the specified communication channel as a target communication channel;
and if the data transmission request does not specify a communication channel, determining a target communication channel according to a set channel allocation strategy.
Further, the selecting a link adaptation policy according to the policy priority and the channel environment includes:
and determining the strategy priority level corresponding to each link self-adaptive strategy of the target communication channel in the current channel environment, and selecting the link self-adaptive strategy according to the strategy priority level.
Further, the selecting a link adaptation policy according to the policy priority and the channel environment includes:
determining a strategy priority level and a confidence level corresponding to each link self-adaptive strategy of the target communication channel in a current channel environment, wherein the confidence level is used for identifying the reliability degree of the link self-adaptive strategy;
and determining a link self-adaptive strategy according to the strategy priority and the confidence coefficient.
Further, after selecting the link adaptation policy according to the policy priority and the channel environment, the method further includes:
and determining a communication quality test result for data transmission based on the link self-adaptive strategy, and updating the confidence of the corresponding link self-adaptive strategy based on the communication quality test result.
In a second aspect, an embodiment of the present application provides a link adaptation apparatus based on a communication channel, including a quality testing module, a priority setting module, and a policy selecting module, where:
the quality testing module is used for sending a testing packet in different channel environments of the communication channel according to different link self-adaptive strategies based on each communication channel and counting communication quality testing results of each communication channel in different link self-adaptive strategies and channel environment combinations;
the priority setting module is used for determining a strategy sorting result of the communication quality test result of the link self-adaptive strategy under different channel environments according to the communication quality test result, and setting strategy priority levels for the link self-adaptive strategy of each communication channel under different channel environments based on the strategy sorting result;
and the strategy selection module is used for determining a target communication channel for transmitting data to the user terminal and the channel environment of the target communication channel, and selecting a link self-adaptive strategy according to the strategy priority and the channel environment.
Further, the quality testing module is specifically configured to:
determining transmission parameters according to different link self-adaptive strategies under different channel environments based on each communication channel, and issuing a test packet to a test terminal based on the transmission parameters;
and determining the corresponding communication quality test results of each communication channel under different link self-adaptive strategies and channel environment combinations according to the transmission quality parameters reported by the test terminal.
Further, the priority setting module is specifically configured to:
for each communication channel, sequencing link self-adaption strategies corresponding to different channel environments according to the sequence of the communication quality test results from large to small to obtain strategy sequencing results;
and setting a strategy priority level for the link self-adaption strategy of each communication channel under different channel environments based on the strategy sorting result.
Further, when determining a target communication channel for transmitting data to the user terminal, the policy selection module specifically includes:
in response to a data transmission request for transmitting data to a user terminal, determining whether the data transmission request specifies a communication channel;
if the data transmission request specifies a communication channel, determining the specified communication channel as a target communication channel;
and if the data transmission request does not specify a communication channel, determining a target communication channel according to a set channel allocation strategy.
Further, when the policy selection module selects the link adaptation policy according to the policy priority and the channel environment, the policy selection module specifically includes:
and determining the strategy priority level corresponding to each link self-adaptive strategy of the target communication channel in the current channel environment, and selecting the link self-adaptive strategy according to the strategy priority level.
Further, when the policy selection module selects the link adaptation policy according to the policy priority and the channel environment, the policy selection module specifically includes:
determining a strategy priority level and a confidence level corresponding to each link self-adaptive strategy of the target communication channel in a current channel environment, wherein the confidence level is used for identifying the reliability degree of the link self-adaptive strategy;
and determining a link self-adaptive strategy according to the strategy priority and the confidence coefficient.
Further, the apparatus further comprises a confidence update module configured to, after the policy selection module selects the link adaptation policy according to the policy priority and the channel environment:
and determining a communication quality test result for data transmission based on the link self-adaptive strategy, and updating the confidence of the corresponding link self-adaptive strategy based on the communication quality test result.
In a third aspect, an embodiment of the present application provides a computer device, including: a memory and one or more processors;
the memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the communication channel-based link adaptation method of the first aspect.
In a fourth aspect, embodiments of the present application provide a storage medium containing computer-executable instructions for performing the communication channel-based link adaptation method according to the first aspect when executed by a computer processor.
According to the embodiment of the application, the test packets are sent according to different link self-adaptive strategies under different channel environments of each communication channel to obtain the communication quality test result, the strategy priority levels are set for the link self-adaptive strategies of each communication channel under different channel environments according to the communication quality test result, and when data needs to be sent to the user terminal, the link self-adaptive strategy suitable for the current channel environment is selected to transmit the data according to the channel environment of the target communication channel and the strategy priority level under the current channel environment, so that the flexibility of link self-adaptation is effectively improved.
Drawings
Fig. 1 is a flowchart of a link adaptation method based on a communication channel according to an embodiment of the present application;
fig. 2 is a flowchart of another link adaptation method based on a communication channel according to an embodiment of the present application;
fig. 3 is a flowchart of another link adaptation method based on a communication channel according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a link adaptation apparatus based on a communication channel according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a computer device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present application are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Fig. 1 is a flowchart illustrating a communication channel-based link adaptation method according to an embodiment of the present disclosure, which may be performed by a communication channel-based link adaptation apparatus, which may be implemented by hardware and/or software and integrated in a computer device.
The following description will be given taking as an example a method in which a communication channel-based link adaptation apparatus performs a communication channel-based link adaptation. Referring to fig. 1, the link adaptation method based on a communication channel includes:
s101: based on each communication channel, sending test packets under different channel environments of the communication channel according to different link self-adaptive strategies, and counting communication quality test results of each communication channel under different link self-adaptive strategies and channel environment combinations.
The communication quality test result may be represented by a combination of one or more transmission quality parameters of Block Error Rate (BLER, Block Error Rate), throughput, and Burst Error (Burst Error).
Illustratively, the test packets are sent to the test terminal according to different link adaptation strategies in different channel environments of each communication channel, and when each channel is determined to be in different channel environments, average communication quality test results corresponding to different link adaptation strategies are used, and the communication quality test results of each communication channel under different link adaptation strategies and channel environment combinations are recorded.
Wherein the link adaptation strategy can be an adaptation strategy based on a Water-Filling algorithm, a Hughes-Hartogs algorithm or a Chow algorithm.
S102: and determining a strategy sorting result of the communication quality test result of the link self-adaptive strategy in different channel environments according to the communication quality test result, and setting strategy priority levels for the link self-adaptive strategies of each communication channel in different channel environments based on the strategy sorting result.
Illustratively, after statistics of communication quality test results of each communication channel under different link adaptive strategies and channel environment combinations are obtained, for each communication channel, bubble sorting is performed on each link adaptive strategy under different channel environments according to the communication quality test results, that is, the higher the score corresponding to the communication quality test results is, the earlier the ranking is, the strategy sorting results of each link adaptive strategy under different channel environments are obtained.
Further, setting policy priority levels for link adaptive policies of each communication channel in different channel environments based on the policy sorting result, wherein the policy priority level corresponding to the link adaptive policy before the ranking is higher, and recording the policy priority levels set for the link adaptive policies of each communication channel in different channel environments.
S103: and determining a target communication channel for transmitting data to the user terminal and a channel environment of the target communication channel, and selecting a link self-adaption strategy according to the strategy priority and the channel environment.
Illustratively, when data needs to be sent to the user terminal, a target communication channel corresponding to the data to be transmitted is determined, and a channel environment of the target communication channel is obtained. The target communication channel may be determined based on a preset corresponding relationship between the user terminal and the communication channel, or determined according to a preset corresponding relationship between the data type of the data to be transmitted and the communication channel, or determined according to a communication channel required by issuing a transmission request requesting to send data.
Further, after the target communication channel and the channel environment of the target communication channel are determined, the policy priority levels of the corresponding different link adaptation policies are determined according to the combination of the target communication channel and the channel environment, and the link adaptation policy with the highest policy priority level is determined to be used as the link adaptation policy used for transmitting data this time.
The method includes the steps of sending test packets according to different link adaptation strategies under different channel environments of each communication channel to obtain a communication quality test result, setting strategy priority levels for the link adaptation strategies of each communication channel under different channel environments according to the communication quality test result, and selecting the link adaptation strategy suitable for the current channel environment to transmit data according to the channel environment of the target communication channel and the strategy priority levels under the current channel environment when data needs to be sent to the user terminal, so that the flexibility of link adaptation is effectively improved.
On the basis of the foregoing embodiments, fig. 2 is a flowchart of another communication channel-based link adaptation method provided in an embodiment of the present application, which is an embodiment of the communication channel-based link adaptation method. Referring to fig. 2, the link adaptation method based on a communication channel includes:
s201: based on each communication channel, under different channel environments, determining transmission parameters according to different link self-adaptive strategies, and issuing a test packet to a test terminal based on the transmission parameters.
The channel environment of the communication channel may be represented by one or a combination of multiple channel Quality parameters, such as Reference Signal Received Power (RSRP), Signal to Interference and Noise Ratio (SINR), Reference Signal Receiving Quality (RSRQ), Rank Indication (RI), channel Quality, and channel matrix feedback. The channel quality parameters are obtained by the user terminal based on the channel quality measurement, and are uploaded by the user terminal.
For example, the channel environment is calculated according to the weights of different channel quality parameters, and assuming that the weights of the reference signal received power, the signal-to-interference-and-noise ratio, the reference signal received quality, and the rank indication are b 1-b 4, respectively, the scores of the channel environment are: the channel environment is b1 RSRP + b2 SINR + b3 RSRQ + b4 RI, wherein the larger the score corresponding to the channel environment, the better the quality of the communication channel.
Optionally, the score corresponding to the channel environment may be divided into regions, and score ranges of different channel environments are set, so that a specific channel environment may be determined according to the range corresponding to the channel environment score.
Specifically, for different communication channels, under different channel environments of each communication channel, a transmission parameter is determined according to different link adaptation strategies, and a test packet is issued to the test terminal based on the transmission parameter.
Wherein the transmission parameter is one or more of modulation mode, coding mode, redundant information and transmission power.
S202: and determining the corresponding communication quality test results of each communication channel under different link self-adaptive strategies and channel environment combinations according to the transmission quality parameters reported by the test terminal.
Specifically, after sending a test packet to the test terminal based on the determined transmission parameters, the test terminal generates transmission quality parameters according to the data receiving condition and reports the transmission quality parameters to the link adaptive device. Wherein the transmission quality parameters include block error rate, throughput, and burst error.
Furthermore, a communication quality test result is determined according to the transmission quality parameters reported by the test terminal, so that the communication quality test results corresponding to the communication channels under different link adaptive strategies and channel environment combinations are determined.
In one possible embodiment, the communication quality test result may be determined directly according to a single type of transmission quality parameter in the set transmission quality parameters, for example, directly using the inverse of the block error rate or the inverse of the burst error as the communication quality test result.
In a possible embodiment, the communication quality test result may also be calculated according to the weights of different transmission quality parameters, for example, assuming that the weight values of the block error rate, the throughput and the burst error are a1, a2 and a3 respectively, the communication quality test result corresponds to the following score values: the communication quality test result is a 1/block error rate + a2 throughput + a 3/burst error, wherein the larger the score corresponding to the communication quality test result is, the better the communication quality test result is.
S203: and for each communication channel, sequencing the link self-adaption strategies corresponding to different channel environments according to the sequence of the communication quality test results from large to small to obtain a strategy sequencing result.
Specifically, after the communication quality test results corresponding to the communication channels under different link adaptive strategies and channel environment combinations are obtained, bubble sorting is performed on the link adaptive strategies corresponding to the different channel environments according to the descending order of the scores of the communication quality test results for each communication channel, so as to obtain a strategy sorting result, and the higher the score of the communication quality test result is, the higher the ranking of the corresponding link adaptive strategy is.
S204: and setting a strategy priority level for the link self-adaption strategy of each communication channel under different channel environments based on the strategy sorting result.
Specifically, according to the sequence of the sorting results, policy priority levels are set for all link adaptive policies of each channel in different channel environments, a priority level record table is formed, and the policy priority levels are higher the farther the sorting results are, the higher the sorting results are.
For example, assume that there are adaptive policies A, B and C based on the Water-Filling algorithm, the Hughes-Hartogs algorithm, and the Chow algorithm, where in a certain channel environment of a certain channel, the score ranking of the communication quality test results obtained by the test is B, A and C in order from large to small, the policy ranking result in the channel environment of the communication channel is B, A, C in order, and in the current communication channel and channel environment, the policy priority levels of the three link adaptive policies are B > a > C, and the priority level of B is the highest.
S205: in response to a data transmission request for transmitting data to a user terminal, it is determined whether the data transmission request specifies a communication channel. If so, go to step S206, otherwise go to step S207.
Specifically, whether the generated data transmission request needs to make a communication channel or not can be determined according to the data type of the data to be transmitted or the target user terminal. And if the data type corresponding to the data to be transmitted or the target user terminal is a preset data type or user terminal which needs a specific communication channel for data transmission, generating a data transmission request for designating the corresponding communication channel, otherwise, generating a common data transmission request for not designating the communication channel.
Further, after the data transmission request is generated, it is determined whether the data transmission request specifies a communication channel. If so, go to step S206, otherwise go to step S207.
S206: the designated communication channel is determined as the target communication channel.
If the data transmission request has the designated communication channel, the designated communication channel is directly used as a target communication channel for transmitting the current data to be transmitted, and the step S208 is skipped.
S207: and determining a target communication channel according to the set channel allocation strategy.
And if the data transmission request does not specify the communication channel, determining a target communication channel according to the set channel allocation strategy. The setting of the channel allocation strategy can be determined according to the channel occupancy rate of each communication channel or according to the channel environment quality of each communication channel.
S208: and acquiring the channel environment of the target communication channel.
After the target communication channel is determined, the channel environment of the target communication channel is acquired.
S209: and determining the strategy priority level corresponding to each link self-adaptive strategy of the target communication channel in the current channel environment, and selecting the link self-adaptive strategy according to the strategy priority level.
Specifically, after the target communication channel and the channel environment of the target communication channel are determined, the policy priority corresponding to each link adaptation policy of the target communication channel in the current channel environment is determined according to the priority record table, and the link adaptation policy with the highest policy priority is used as the link adaptation policy for transmitting the data to be transmitted this time.
Further, a transmission parameter is determined according to the link adaptation strategy, and data to be transmitted is sent to the target user terminal through the target communication channel based on the transmission parameter.
The method includes the steps of sending test packets according to different link adaptation strategies under different channel environments of each communication channel to obtain a communication quality test result, setting strategy priority levels for the link adaptation strategies of each communication channel under different channel environments according to the communication quality test result, and selecting the link adaptation strategy suitable for the current channel environment to transmit data according to the channel environment of the target communication channel and the strategy priority levels under the current channel environment when data needs to be sent to the user terminal, so that the flexibility of link adaptation is effectively improved. Meanwhile, a target communication channel to which the transmission data is directed is determined according to the data transmission request, and a proper link self-adaption strategy is determined for data transmission, so that the quality of data transmission is effectively ensured.
On the basis of the foregoing embodiments, fig. 3 is a flowchart of another communication channel-based link adaptation method provided in an embodiment of the present application, which is an embodiment of the communication channel-based link adaptation method. Referring to fig. 3, the link adaptation method based on a communication channel includes:
s301: based on each communication channel, sending test packets under different channel environments of the communication channel according to different link self-adaptive strategies, and counting communication quality test results of each communication channel under different link self-adaptive strategies and channel environment combinations.
S302: and determining a strategy sorting result of the communication quality test result of the link self-adaptive strategy in different channel environments according to the communication quality test result, and setting strategy priority levels for the link self-adaptive strategies of each communication channel in different channel environments based on the strategy sorting result.
S303: a target communication channel for transmitting data to a user terminal and a channel environment of the target communication channel are determined.
S304: and determining the strategy priority and the confidence corresponding to the self-adaptive strategy of each link of the target communication channel in the current channel environment.
Wherein the confidence level is used for identifying the reliability degree of the link self-adaptive strategy and is recorded in a priority level recording table. The higher the confidence coefficient is, the higher the reliability of the link adaptation strategy under the combination of the corresponding communication channel and the channel environment is, and the initial confidence coefficients of the link adaptation strategy under the combination of the communication channel and the channel environment are the same.
Specifically, after the target communication channel and the current channel environment of the target communication channel are determined, the policy priority and the confidence of each link adaptive policy corresponding to the target communication channel and the current channel environment are determined according to the priority record table.
S305: and determining a link self-adaptive strategy according to the strategy priority and the confidence coefficient.
Specifically, whether the confidence degrees corresponding to the adaptive strategies of each link under the combination of the target communication channel and the current channel environment reach the set threshold value is judged.
And if all the link adaptive strategies reach the set threshold or part of the link adaptive strategies reach the set threshold, taking the link adaptive strategy with the highest strategy priority level in the link adaptive strategies with the confidence reaching the set threshold as the link adaptive strategy for sending the data to be transmitted at this time.
And if the link self-adaptive strategies do not reach the set threshold, taking the link self-adaptive strategy with the highest strategy priority level as the link self-adaptive strategy for sending the data to be transmitted at this time.
After determining the link adaptive strategy, determining a transmission parameter according to the link adaptive strategy, and sending data to be transmitted to a target user terminal through a target communication channel based on the transmission parameter.
S306: and determining a communication quality test result for data transmission based on the link self-adaptive strategy, and updating the confidence of the corresponding link self-adaptive strategy based on the communication quality test result.
Specifically, after the transmission of the data to be transmitted is completed, a communication quality test result is determined according to the transmission quality parameters reported by the target user terminal, a communication quality test result corresponding to the current communication channel under the combination of the link adaptation strategy and the current channel environment is determined, and whether the communication quality test result meets the preset data transmission requirement or not is judged. For example, the communication quality test result is compared with a preset judgment value, and when the score corresponding to the communication quality test result is greater than or equal to the preset judgment value, the communication quality test result meets the preset data transmission requirement.
And if the communication quality test result meets the preset data transmission requirement, subtracting the confidence degrees of the link self-adaptive strategies corresponding to the communication channel and the channel environment according to a first set amplitude, otherwise, subtracting the confidence degrees of the link self-adaptive strategies corresponding to the communication channel and the channel environment according to a second set amplitude, so that the confidence degrees of the link self-adaptive strategies are updated, and the first set amplitude is larger than the second set amplitude.
The method includes the steps of sending test packets according to different link adaptation strategies under different channel environments of each communication channel to obtain a communication quality test result, setting strategy priority levels for the link adaptation strategies of each communication channel under different channel environments according to the communication quality test result, and selecting the link adaptation strategy suitable for the current channel environment to transmit data according to the channel environment of the target communication channel and the strategy priority levels under the current channel environment when data needs to be sent to the user terminal, so that the flexibility of link adaptation is effectively improved. Meanwhile, the confidence coefficient of the response link self-adaptive strategy is updated according to the communication quality test result, and the quality of data transmission is effectively guaranteed.
Fig. 4 is a schematic structural diagram of a link adaptation apparatus based on a communication channel according to an embodiment of the present application. Referring to fig. 4, the communication channel-based link adaptation apparatus includes a quality test module 41, a priority setting module 42, and a policy selection module 43.
The quality testing module 41 is configured to send a test packet in different channel environments of the communication channel according to different link adaptation strategies based on each communication channel, and count communication quality testing results of each communication channel in different link adaptation strategies and channel environment combinations; a priority setting module 42, configured to determine a policy sorting result of the communication quality test result of the link adaptive policy in different channel environments according to the communication quality test result, and set a policy priority level for the link adaptive policy of each communication channel in different channel environments based on the policy sorting result; a policy selecting module 43, configured to determine a target communication channel for transmitting data to the user terminal and a channel environment of the target communication channel, and select a link adaptation policy according to the policy priority and the channel environment.
The method includes the steps of sending test packets according to different link adaptation strategies under different channel environments of each communication channel to obtain a communication quality test result, setting strategy priority levels for the link adaptation strategies of each communication channel under different channel environments according to the communication quality test result, and selecting the link adaptation strategy suitable for the current channel environment to transmit data according to the channel environment of the target communication channel and the strategy priority levels under the current channel environment when data needs to be sent to the user terminal, so that the flexibility of link adaptation is effectively improved.
In a possible embodiment, the quality testing module 41 is specifically configured to:
determining transmission parameters according to different link self-adaptive strategies under different channel environments based on each communication channel, and issuing a test packet to a test terminal based on the transmission parameters;
and determining the corresponding communication quality test results of each communication channel under different link self-adaptive strategies and channel environment combinations according to the transmission quality parameters reported by the test terminal.
In a possible embodiment, the priority setting module 42 is specifically configured to:
for each communication channel, sequencing link self-adaption strategies corresponding to different channel environments according to the sequence of the communication quality test results from large to small to obtain strategy sequencing results;
and setting a strategy priority level for the link self-adaption strategy of each communication channel under different channel environments based on the strategy sorting result.
In a possible embodiment, the policy selecting module 43, when determining a target communication channel for transmitting data to the user terminal, specifically includes:
in response to a data transmission request for transmitting data to a user terminal, determining whether the data transmission request specifies a communication channel;
if the data transmission request specifies a communication channel, determining the specified communication channel as a target communication channel;
and if the data transmission request does not specify a communication channel, determining a target communication channel according to a set channel allocation strategy.
In a possible embodiment, when the policy selecting module 43 selects the link adaptation policy according to the policy priority and the channel environment, the method specifically includes:
and determining the strategy priority level corresponding to each link self-adaptive strategy of the target communication channel in the current channel environment, and selecting the link self-adaptive strategy according to the strategy priority level.
In a possible embodiment, when the policy selecting module 43 selects the link adaptation policy according to the policy priority and the channel environment, the method specifically includes:
determining a strategy priority level and a confidence level corresponding to each link self-adaptive strategy of the target communication channel in a current channel environment, wherein the confidence level is used for identifying the reliability degree of the link self-adaptive strategy;
and determining a link self-adaptive strategy according to the strategy priority and the confidence coefficient.
In one possible embodiment, the apparatus further comprises a confidence update module for, after the policy selection module 43 selects the link adaptation policy according to the policy priority and the channel environment:
and determining a communication quality test result for data transmission based on the link self-adaptive strategy, and updating the confidence of the corresponding link self-adaptive strategy based on the communication quality test result.
The embodiment of the present application further provides a computer device, and the computer device may integrate the link adaptation device based on the communication channel provided in the embodiment of the present application. Fig. 5 is a schematic structural diagram of a computer device according to an embodiment of the present application. Referring to fig. 5, the computer apparatus includes: an input device 53, an output device 54, a memory 52, and one or more processors 51; the memory 52 for storing one or more programs; when executed by the one or more processors 51, cause the one or more processors 51 to implement the communication channel-based link adaptation method provided in the embodiments described above. Wherein the input device 53, the output device 54, the memory 52 and the processor 51 may be connected by a bus or other means, as exemplified by the bus connection in fig. 5.
The memory 52 is a computer-readable storage medium and can be used for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the link adaptation method based on communication channels (for example, the quality test module 41, the priority setting module 42, and the policy selection module 43 in the link adaptation apparatus based on communication channels) according to any embodiment of the present application. The memory 52 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the device, and the like. Further, the memory 52 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 52 may further include memory located remotely from the processor 51, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 53 may be used to receive input numeric or character information and generate key signal inputs relating to user settings and function control of the apparatus. The output device 54 may include a display device such as a display screen.
The processor 51 executes various functional applications of the device and data processing, i.e., implements the above-described link adaptation method based on a communication channel, by executing software programs, instructions, and modules stored in the memory 52.
The communication channel-based link adaptation device, the communication channel-based link adaptation equipment and the communication channel-based link adaptation computer provided by the above embodiments can be used for executing the communication channel-based link adaptation method provided by any of the above embodiments, and have corresponding functions and advantages.
Embodiments of the present application further provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform the communication channel-based link adaptation method provided in the above embodiments, the communication channel-based link adaptation method including: based on each communication channel, sending test packets under different channel environments of the communication channel according to different link self-adaptive strategies, and counting communication quality test results of each communication channel under different link self-adaptive strategies and channel environment combinations; determining a strategy sorting result of the communication quality test result of the link self-adaptive strategy under different channel environments according to the communication quality test result, and setting strategy priority levels for the link self-adaptive strategies of each communication channel under different channel environments based on the strategy sorting result; and determining a target communication channel for transmitting data to the user terminal and a channel environment of the target communication channel, and selecting a link self-adaption strategy according to the strategy priority and the channel environment.
Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in a first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network (such as the internet). The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations, such as in different computer systems that are connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium provided in the embodiments of the present application contains computer-executable instructions, and the computer-executable instructions are not limited to the communication channel-based link adaptation method described above, and may also perform related operations in the communication channel-based link adaptation method provided in any embodiment of the present application.
The communication channel-based link adaptation device, the apparatus, and the storage medium provided in the foregoing embodiments may perform the communication channel-based link adaptation method provided in any embodiments of the present application, and refer to the communication channel-based link adaptation method provided in any embodiments of the present application without detailed technical details described in the foregoing embodiments.
The foregoing is considered as illustrative of the preferred embodiments of the invention and the technical principles employed. The present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.
Claims (6)
1. A method for link adaptation based on a communication channel, comprising:
based on each communication channel, sending test packets under different channel environments of the communication channel according to different link self-adaptive strategies, and counting communication quality test results of each communication channel under different link self-adaptive strategies and channel environment combinations;
determining a strategy sorting result of the communication quality test result of the link self-adaptive strategy under different channel environments according to the communication quality test result, and setting strategy priority levels for the link self-adaptive strategies of each communication channel under different channel environments based on the strategy sorting result;
determining a target communication channel for transmitting data to a user terminal and a channel environment of the target communication channel, and determining a strategy priority level and a confidence level corresponding to each link self-adaptive strategy of the target communication channel in the current channel environment, wherein the confidence level is used for identifying the reliability of the link self-adaptive strategy; the determining a target communication channel for transmitting data to the user terminal comprises: in response to a data transmission request for transmitting data to a user terminal, determining whether the data transmission request specifies a communication channel; if the data transmission request specifies a communication channel, determining the specified communication channel as a target communication channel; if the data transmission request does not specify a communication channel, determining a target communication channel according to a set channel allocation strategy;
determining a link self-adaptive strategy according to the strategy priority and the confidence; the determining a link adaptation policy according to the policy priority and the confidence includes: judging whether the confidence degrees corresponding to the link self-adaptive strategies under the combination of the target communication channel and the current channel environment reach a set threshold value; if all the link adaptive strategies reach the set threshold or part of the link adaptive strategies reach the set threshold, the link adaptive strategy with the highest strategy priority level in the link adaptive strategies with the confidence reaching the set threshold is used as the link adaptive strategy for sending the data to be transmitted at this time; if the link self-adaptive strategies are not reached to the set threshold, the link self-adaptive strategy with the highest strategy priority level is used as the link self-adaptive strategy for sending the data to be transmitted at this time;
and determining a communication quality test result for data transmission based on the link self-adaptive strategy, and updating the confidence of the corresponding link self-adaptive strategy based on the communication quality test result.
2. The link adaptation method according to claim 1, wherein the step of sending the test packets in different channel environments of the communication channel according to different link adaptation strategies based on each communication channel and counting the communication quality test results of the transmission of the test packets of each communication channel under different link adaptation strategies and channel environment combinations comprises:
determining transmission parameters according to different link self-adaptive strategies under different channel environments based on each communication channel, and issuing a test packet to a test terminal based on the transmission parameters;
and determining the corresponding communication quality test results of each communication channel under different link self-adaptive strategies and channel environment combinations according to the transmission quality parameters reported by the test terminal.
3. The method according to claim 1, wherein the determining a policy ranking result of the communication quality test result of the link adaptation policy under different channel environments according to the communication quality test result, and setting a policy priority level for the link adaptation policy of each communication channel under different channel environments based on the policy ranking result comprises:
for each communication channel, sequencing link self-adaption strategies corresponding to different channel environments according to the sequence of the communication quality test results from large to small to obtain strategy sequencing results;
and setting a strategy priority level for the link self-adaption strategy of each communication channel under different channel environments based on the strategy sorting result.
4. A link adaptation device based on a communication channel is characterized by comprising a quality testing module, a priority setting module and a strategy selection module, wherein:
the quality testing module is used for sending a testing packet in different channel environments of the communication channel according to different link self-adaptive strategies based on each communication channel and counting communication quality testing results of each communication channel in different link self-adaptive strategies and channel environment combinations;
the priority setting module is used for determining a strategy sorting result of the communication quality test result of the link self-adaptive strategy under different channel environments according to the communication quality test result, and setting strategy priority levels for the link self-adaptive strategy of each communication channel under different channel environments based on the strategy sorting result;
the system comprises a strategy selection module, a link adaptation strategy selection module and a link adaptation strategy selection module, wherein the strategy selection module is used for determining a target communication channel for transmitting data to a user terminal and a channel environment of the target communication channel, and determining a strategy priority level and a confidence coefficient corresponding to each link adaptation strategy of the target communication channel in the current channel environment, and the confidence coefficient is used for identifying the reliability degree of the link adaptation strategy; the determining a target communication channel for transmitting data to the user terminal comprises: in response to a data transmission request for transmitting data to a user terminal, determining whether the data transmission request specifies a communication channel; if the data transmission request specifies a communication channel, determining the specified communication channel as a target communication channel; if the data transmission request does not specify a communication channel, determining a target communication channel according to a set channel allocation strategy; determining a link self-adaptive strategy according to the strategy priority and the confidence; the determining a link adaptation policy according to the policy priority and the confidence includes: judging whether the confidence degrees corresponding to the link self-adaptive strategies under the combination of the target communication channel and the current channel environment reach a set threshold value; if all the link adaptive strategies reach the set threshold or part of the link adaptive strategies reach the set threshold, the link adaptive strategy with the highest strategy priority level in the link adaptive strategies with the confidence reaching the set threshold is used as the link adaptive strategy for sending the data to be transmitted at this time; if the link self-adaptive strategies are not reached to the set threshold, the link self-adaptive strategy with the highest strategy priority level is used as the link self-adaptive strategy for sending the data to be transmitted at this time;
the device also comprises a confidence coefficient updating module which is used for determining a communication quality test result of data transmission based on the link self-adaptive strategy and updating the confidence coefficient of the corresponding link self-adaptive strategy based on the communication quality test result.
5. A computer device, comprising: a memory and one or more processors;
the memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the communication channel-based link adaptation method of any of claims 1-3.
6. A storage medium containing computer-executable instructions for performing the communication channel-based link adaptation method of any one of claims 1-3 when executed by a computer processor.
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| CN117560789A (en) * | 2024-01-11 | 2024-02-13 | 中国水产科学研究院南海水产研究所 | Offshore operation channel access method and system based on multipath transmission |
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