A transmission delay compensation method

Abstract

The present invention relates to the technical field of signal transmission, and specifically discloses a transmission delay compensation method, which includes the following steps: S1: Collect the reliability parameters of the signal, determine the reliability score of the signal, and periodically obtain the reliability score of the signal; S2: Sort the reliability scores to obtain a first sort, group the reliability scores in the first sort according to the reliability score difference; Determine all the groups, and sort the groups according to the average reliability score to obtain a second sort; S3: Calculate a first change rate and a second change rate; Calculate a standard score, and count the normal ratio and the abnormal ratio; S4: Calculate a judgment coefficient according to the first change rate, the second change rate, the normal ratio and the abnormal ratio, and determine the optimal transmission delay compensation method according to the judgment coefficient. The present invention can scientifically determine the optimal transmission delay compensation method and improve the communication quality.

Description

Technical Field

[0001] The present invention relates to the technical field of signal transmission, and particularly relates to a transmission delay compensation method. Background Art

[0002] Transmission refers to the process of signals, data, or information being transferred from one location to another in a communication system or network. During this process, signals may be affected by various factors, such as distance, medium characteristics, and the performance of network devices, resulting in transmission delays, which in turn bring various negative impacts, such as reduced communication efficiency: transmission delays increase the time it takes for data to travel through the network, slowing down the overall communication speed and affecting the efficiency of the system; impaired real-time performance: in applications that require real-time interaction, such as video conferencing, transmission delays can cause video stuttering and audio desynchronization.

[0003] In the prior art, there are many different methods for compensating transmission delays, such as buffer and synchronization mechanisms: using a buffer at the receiving end to temporarily store data and adjusting the playback or processing time of the data according to the actual delay; adaptive timing control: dynamically adjusting the sending and processing speeds of data based on detected network delays. However, how to select the most suitable transmission delay compensation method from multiple methods mainly depends on manual operation, which is relatively dependent on personal subjective experience and is not scientific enough. Based on this, a transmission delay compensation method is proposed to screen the most suitable transmission delay compensation method according to the actual compensation effect, thereby improving communication quality. Summary of the Invention

[0004] The purpose of the present invention is to provide a transmission delay compensation method to solve the following technical problems:

[0005] How to select the most suitable transmission delay compensation method from multiple methods mainly depends on manual operation, which is relatively dependent on personal subjective experience and is not scientific enough.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A transmission delay compensation method includes the following steps:

[0008] S1: Collect the reliability parameters of the signal. The reliability parameters include delay, jitter, packet loss rate, and retransmission rate. Calculate the reliability score C of the signal based on the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS), and periodically obtain the reliability score of the signal within a preset monitoring period;

[0009] S2: Sort the reliability scores in descending order to obtain a first ranking. The larger the reliability score, the higher the ranking. Starting from the first place in the first ranking, calculate the differences in reliability scores in turn , Denote the reliability score of the $i$-th position in the first sorting. When the difference in reliability scores is less than $Cys$ (where $Cys$ is a preset threshold for the difference in reliability scores), group the reliability scores within the sorting position range $[1, i]$ in the first sorting as the same group.

[0010] Remove the grouped reliability scores, repeat the above steps to determine all groups, calculate the average reliability score in the same group, and sort the groups according to the size of the average reliability score to obtain a second sorting. The larger the average reliability score, the higher the ranking of the corresponding group.

[0011] S3: Calculate the first change rate and the second change rate , where , , denotes the average reliability score of the $m$-th group in the second sorting, and $m$ represents the total number of groups.

[0012] Calculate the standard score , count the normal proportion and the abnormal proportion . The normal proportion represents the proportion of the number of groups with an average reliability score greater than or equal to the standard score in the total number of groups $m$, and the abnormal proportion represents the proportion of the number of groups with an average reliability score less than the standard score in the total number of groups $m$.

[0013] S4: Calculate the judgment coefficient $K$ based on the first change rate, the second change rate, the normal proportion and the abnormal proportion , and determine the optimal transmission delay compensation method according to the judgment coefficient $K$.

[0014] As a further solution of the present invention: In step S4, the process of determining the optimal transmission delay compensation method specifically includes:

[0015] Calculate the judgment coefficient $K$ through the following formula:

[0016] ;

[0017] where is a preset correction coefficient;

[0018] Obtain the maximum judgment coefficient , denotes the judgment coefficient of the $n$-th transmission delay compensation method. Take the transmission delay compensation method corresponding to the maximum judgment coefficient as the optimal transmission delay compensation method.

[0019] As a further solution of the present invention: in step S4, when there are two or more judgment coefficients that are the same and are the maximum judgment coefficients, the judgment coefficients that are the same and are the maximum judgment coefficients are used as the pending coefficients, the transmission delay compensation method corresponding to the pending coefficients is used as the pending method, and the pending method with the lowest cost is used as the optimal transmission delay compensation method.

[0020] As a further solution of the present invention: in step S3, a grouping quantity threshold mys is set. When the total number m of groups satisfies m ≤ mys, the corrected reliability score difference threshold , is represented by a preset corrected value of the reliability score difference threshold, and the total number of groups is determined again. Repeat the above steps until the total number of groups is greater than or equal to the grouping quantity threshold mys.

[0021] As a further solution of the present invention: in step S2, during the process of determining the first sorting, when there are two or more identical reliability scores, the identical reliability scores are sorted in the order of the time axis.

[0022] As a further solution of the present invention: in step S3, when the standard score B ≤ Bys, the corresponding transmission delay compensation method is not used as the optimal transmission delay compensation method, where Bys represents a preset standard score threshold.

[0023] As a further solution of the present invention: when the standard scores corresponding to all the transmission delay compensation methods are less than or equal to the standard score threshold, a warning message is sent to a preset management personnel.

[0024] Advantages of the present invention: In the present invention, reliability parameters of signals are first collected, and reliability scores of the signals are determined according to the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS), and the reliability scores are obtained periodically. It should be noted that the reliability parameters of the signals include, but are not limited to, delay, jitter, packet loss rate, and retransmission rate, which can be selected according to actual needs in the actual processing process. The TOPSIS is a multi-attribute decision-making method that evaluates their relative advantages and disadvantages by comparing the distances between the reliability parameters' ideal solutions and negative ideal solutions, which belongs to the prior art and will not be elaborated here. Periodically obtaining the reliability scores is to avoid the influence of short-term fluctuations, and the monitoring period and the time interval between two adjacent acquisitions of the reliability scores can be set based on experience. Then, the reliability scores are sorted to obtain the first sorting, and the reliability scores in the first sorting are grouped according to the differences in the reliability scores. It should be noted that the differences in the reliability scores within the groups are relatively small, and by calculating the average value of the reliability scores in the groups to replace the reliability scores in the groups, the amount of data to be processed and the complexity of the data can be reduced; starting from the first in the first sorting, calculating the differences in the reliability scores in sequence aims to ensure that the maximum value of the differences in the reliability scores within the same group is less than the reliability score difference threshold Cys. Then, all the groups are determined, and the groups are sorted according to the average reliability scores to obtain the second sorting; the second sorting intuitively reflects the change of the average reliability scores and is used to determine the relevant parameters required subsequently, providing a data basis for further analysis. Next, the first change rate and the second change rate are calculated; the standard score is calculated, the normal proportion and the abnormal proportion are counted; and the judgment coefficient is calculated based on this. It should be noted that the larger the standard score, the larger the average value of the average reliability scores of all groups. Therefore, the judgment coefficient K should be larger (because subsequently, the transmission delay compensation method with the largest judgment coefficient is taken as the optimal transmission delay compensation method), and the relationships between the other parameters and the judgment coefficient can be referred to the above ideas and will not be elaborated here. The present invention can scientifically determine the optimal transmission delay compensation method and improve the communication quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 is a schematic flowchart of a transmission delay compensation method of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figure 1 shown in the figure. The present invention is a transmission delay compensation method, including the following steps:

[0029] S1: Collect the reliability parameters of the signal. The reliability parameters include delay, jitter, packet loss rate, and retransmission rate. Calculate the reliability score C of the signal based on the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS), and periodically obtain the reliability score of the signal within a preset monitoring period;

[0030] S2: Sort the reliability scores in descending order to obtain the first sorting. The larger the reliability score, the higher the ranking. Starting from the first position in the first sorting, calculate the reliability score differences in turn , where represents the reliability score of the i-th position in the first sorting. When the reliability score difference , group the reliability scores within the sorting position interval [1, i] in the first sorting as the same group. Cys represents a preset reliability score difference threshold;

[0031] Remove the grouped reliability scores, repeat the above steps to determine all groups, calculate the average reliability score in the same group, sort the groups in descending order of the average reliability score to obtain the second sorting. The larger the average reliability score, the higher the ranking of the corresponding group;

[0032] S3: Calculate the first change rate and the second change rate , where, , , represents the average reliability score of the m-th group in the second sorting, and m represents the total number of groups;

[0033] Calculate the standard score , count the normal proportion and the abnormal proportion . The normal proportion represents the proportion of the number of groups with an average reliability score greater than or equal to the standard score in the total number of groups m, and the abnormal proportion represents the proportion of the number of groups with an average reliability score less than the standard score in the total number of groups m;

[0034] S4: Calculate the judgment coefficient K based on the first change rate, the second change rate, the normal proportion and the abnormal proportion , and determine the optimal transmission delay compensation method according to the judgment coefficient K.

[0035] It should be noted that first, reliability parameters of signals are collected, and the reliability scores of the signals are determined according to the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS), and the reliability scores are obtained periodically. It is worth noting that the reliability parameters of the signals include, but are not limited to, delay, jitter, packet loss rate, and retransmission rate, which can be selected according to actual needs in the actual processing. The TOPSIS is a multi-attribute decision-making method that evaluates their relative advantages and disadvantages by comparing the distances between the ideal solution and the negative ideal solution of the reliability parameters. It belongs to the prior art and will not be elaborated here. Obtaining the reliability scores periodically is to avoid the influence of short-term fluctuations. The monitoring period and the time interval between two adjacent acquisitions of the reliability scores can be set based on experience. After that, the reliability scores are sorted to obtain the first sorting, and the reliability scores in the first sorting are grouped according to the differences in the reliability scores. It should be noted that the differences in the reliability scores within the groups are relatively small. By calculating the average value of the reliability scores in the groups to replace the reliability scores in the groups, the amount of data to be processed and the complexity of the data can be reduced. Starting from the first in the first sorting, the purpose of calculating the differences in the reliability scores in sequence is to ensure that the maximum value of the differences in the reliability scores within the same group is less than the reliability score difference threshold Cys. After that, all the groups are determined, and the groups are sorted according to the average reliability scores to obtain the second sorting. The second sorting intuitively reflects the change of the average reliability scores and is used to determine the relevant parameters required subsequently, providing a data basis for further analysis in the future. Then, the first change rate and the second change rate are calculated; the standard score is calculated, and the normal ratio and the abnormal ratio are counted; and the judgment coefficient is calculated based on this. It should be noted that the larger the standard score, the larger the average value of the average reliability scores of all groups. Therefore, the judgment coefficient K should be larger (because the transmission delay compensation method with the largest judgment coefficient will be used as the optimal transmission delay compensation method subsequently). The relationships between the other parameters and the judgment coefficient can be referred to the above ideas.

[0036] In another preferred embodiment of the present invention, in step S4, the process of determining the optimal transmission delay compensation method specifically includes:

[0037] The judgment coefficient K is calculated by the following formula:

[0038] ;

[0039] Wherein, is a preset correction coefficient;

[0040] Obtain the maximum judgment coefficient , represents the judgment coefficient of the nth transmission delay compensation method, and the transmission delay compensation method corresponding to the maximum judgment coefficient is used as the optimal transmission delay compensation method.

[0041] It is worth noting that the larger the first change rate is, the faster the "effect" of the delay compensation method rises. Therefore, the judgment coefficient K should be larger, that is, the first change rate is proportional to the judgment coefficient; the larger m is, the more serious the fluctuation of the reliability score is, and there is a large deviation, that is, when the performance is better, it is better, and when the performance is worse, it is worse. Therefore, the judgment coefficient K should be smaller, that is, the total number of groups m is inversely proportional to the judgment coefficient K; referring to the above ideas, the relationships between the remaining parameters and the judgment coefficient are obtained, which will not be elaborated here; the larger the judgment coefficient is, the better the performance of the transmission delay compensation method within the same monitoring period. Therefore, the transmission delay compensation method corresponding to the maximum judgment coefficient is used as the optimal transmission delay compensation method.

[0042] In another preferred embodiment of the present invention, in step S4, when there are two or more judgment coefficients that are the same and are the maximum judgment coefficients, the judgment coefficients that are the same and are the maximum judgment coefficients are used as the undetermined coefficients, the transmission delay compensation methods corresponding to the undetermined coefficients are used as the undetermined methods, and the undetermined method with the lowest cost is used as the optimal transmission delay compensation method.

[0043] It can be understood that when the judgment coefficients of multiple transmission delay compensation methods are the same, it means that these methods perform equivalently in terms of performance. In this case, selecting the transmission delay compensation method with the lowest cost can maximize the cost-benefit of the overall system; in actual situations, not only performance but also operating costs such as computing resources, network bandwidth consumption, and hardware device load need to be considered. By selecting the method with the lowest cost, while ensuring high performance, the operation or maintenance cost can be reduced.

[0044] In another preferred embodiment of the present invention, in step S3, a grouping quantity threshold mys is set. When the total number of groups m ≤ mys, the corrected reliability score difference threshold , represents the preset corrected value of the reliability score difference threshold, and the total number of groups is determined again, and the above steps are repeated until the total number of groups is greater than or equal to the grouping quantity threshold mys.

[0045] It should be noted that when the number of groups m is too small, it may mean that there is too much sample data in each group, which will cause data with different characteristics to be classified into the same group, losing the fineness of group analysis. Therefore, by setting the group number threshold mys and requiring the total number of groups m to be greater than or equal to this threshold, it can ensure that the number of groups is sufficient, so that the data characteristics in each group are more similar and the analysis is more accurate; by reducing the scoring difference threshold each time and regrouping, it can ensure that an ideal grouping state can be gradually approached. There is no need to set a strict grouping threshold at one time, but through gradual adjustment, while ensuring the rationality of data grouping, it can avoid the problem of data dilution caused by too many groups.

[0046] In another preferred embodiment of the present invention, in step S2, during the process of determining the first sorting, when there are two or more reliability scores that are the same, the same reliability scores are sorted in the order of the time axis.

[0047] In another preferred embodiment of the present invention, in step S3, when the standard score B ≤ Bys, the corresponding transmission delay compensation method is not used as the optimal transmission delay compensation method, where Bys represents a preset standard score threshold.

[0048] It can be understood that the transmission delay compensation method directly affects the communication quality. Setting the standard score threshold can ensure that the finally selected compensation method is excellent enough in performance, thereby improving the reliability and quality of the entire communication system; by setting the standard score threshold, those compensation methods that do not meet the minimum standard can be effectively excluded, simplifying the decision-making process, reducing the workload of calculation and comparison, and at the same time, improving the selection efficiency and quickly screening out the methods that truly meet the standards.

[0049] In another preferred embodiment of the present invention, when the standard scores corresponding to all transmission delay compensation methods are less than or equal to the standard score threshold, a warning message is sent to a preset manager.

[0050] It is worth noting that when the standard scores of all transmission delay compensation methods are lower than or equal to the threshold, it means that the current compensation method cannot provide good enough performance. This situation may mean that there is a problem with the overall performance of the system, or the currently adopted compensation method is no longer suitable for the existing network environment or working conditions. Therefore, sending a warning message to the manager can remind them that the system may be in a sub-healthy state and intervene in a timely manner to take necessary measures.

[0051] The above has described an embodiment of the present invention in detail, but the above content is only a preferred embodiment of the present invention and cannot be considered as defining the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention shall still fall within the scope covered by the patent of the present invention.

Claims

1. A transmission delay compensation method, characterized in that: The following steps are involved: S1: Collect signal reliability parameters, including delay, jitter, packet loss rate, and retransmission rate, calculate the signal reliability score C based on the superior-inferior solution distance method, and periodically obtain the signal reliability score within a preset monitoring period; S2: Sort the reliability scores by size to obtain a first ranking. The larger the reliability score, the higher the ranking. Starting from the first place in the first ranking, calculate the reliability score difference in sequence. , Indicates the reliability score of the i-th position in the first ranking. When the reliability score difference , the reliability scores belonging to the sorting position interval [1, i] in the first sorting are grouped as the same group, and Cys represents a preset reliability score difference threshold; Remove the reliability scores of the grouped groups, repeat the above steps to determine all the groups, calculate the average reliability score in the same group, and sort the groups according to the size of the average reliability score to obtain the second sorting. The larger the average reliability score, the higher the ranking of the corresponding group. S3: Calculate the first rate of change and the second rate of change ,in, , , represents the average reliability score of the m-th group in the second ranking, where m represents the total number of groups; Calculating Standard Ratings Statistical normal ratio and abnormal proportion , the normal ratio represents the ratio of the number of groups whose average reliability score is greater than or equal to the standard score to the total number of groups m, and the abnormal ratio represents the ratio of the number of groups whose average reliability score is less than the standard score to the total number of groups m; S4: According to the first change rate, the second change rate, the normal ratio and abnormal proportion Calculating a judgment coefficient K, and determining an optimal transmission delay compensation method based on the judgment coefficient K; The process of determining the optimal transmission delay compensation method specifically includes: The judgment coefficient K is calculated by the following formula: ； in, is the preset correction factor; Get the maximum judgment coefficient , Represents the judgment coefficient of the nth transmission delay compensation method, and the maximum judgment coefficient The corresponding transmission delay compensation method is used as the optimal transmission delay compensation method.

2. A transmission delay compensation method according to claim 1, characterized in that: In step S4, when there are two or more judgment coefficients that are the same and are the maximum judgment coefficients, the judgment coefficients that are the same and are the maximum judgment coefficients are used as the undetermined coefficients, the transmission delay compensation method corresponding to the undetermined coefficients is used as the undetermined method, and the undetermined method with the lowest cost is used as the optimal transmission delay compensation method.

3. The transmission delay compensation method according to claim 1, wherein: In step S3, a group number threshold mys is set. When the total number of groups m≤mys, the revised reliability score difference threshold is set to , Represents the preset reliability score difference threshold correction value, and determines the total number of groups again, repeating the above steps until the total number of groups is greater than or equal to the group number threshold mys.

4. The transmission delay compensation method according to claim 1, wherein: In the step S2, during the process of determining the first ranking, when there are two or more reliability scores that are the same, the reliability scores that are the same are ranked in the order of the time axis.

5. The transmission delay compensation method according to claim 1, wherein: In the step S3, when the standard score B≤Bys, the corresponding transmission delay compensation method is not used as the optimal transmission delay compensation method, and Bys represents a preset standard score threshold.

6. A transmission delay compensation method according to claim 5, characterized in that: When the standard scores corresponding to all transmission delay compensation methods are less than or equal to the standard score threshold, an early warning message is sent to a preset management personnel.

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