CN117880605A - Short message video quick playing method and system based on 5G technology - Google Patents
Short message video quick playing method and system based on 5G technology Download PDFInfo
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
- H04N21/64723—Monitoring of network processes or resources, e.g. monitoring of network load
- H04N21/64738—Monitoring network characteristics, e.g. bandwidth, congestion level
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
- H04N21/64784—Data processing by the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
- H04W40/14—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality based on stability
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Abstract
The invention relates to the technical field of link selection, in particular to a method and a system for rapidly playing short message video based on a 5G technology, wherein the method comprises the following steps: collecting real-time historical link data of a communicable link; obtaining the time delay stability of the link according to the time delay difference and the differential distribution relation among different communication data; constructing the reliability of the delay correlation between any two links according to the average delay of the links in all the historical reference data segments every day and the difference between the stability of the delay; constructing link allocation preference of each link according to the reliability and time delay stability of the time delay correlation between each link and other links; and selecting a link with the highest recommended preference to transmit the short message video. The invention greatly improves the speed of playing the short message video by the user and reduces the video jamming caused by improper link distribution.
Description
Technical Field
The application relates to the technical field of link selection, in particular to a method and a system for rapidly playing a short message video based on a 5G technology.
Background
The short message platform is an indispensable tool in enterprise marketing at present, and has practical functions of multi-channel access, multi-functional customization, data analysis real-time monitoring, intelligent screening, harassment prevention, security, confidentiality and the like besides basic functions of mass distribution and marketing. The conventional short message service itself does not support transmission of large data amount, and even extension to MMS (multimedia information service) has a certain file size limitation. Although the 5G technology provides a larger bandwidth, the delay is greatly reduced, but in the case of weak signal coverage, network fluctuation, handover or network congestion, the problem of slow video loading may still occur, namely, network delay occurs, which affects the video loading speed.
The short message video transmission has higher requirement on network stability, and the traditional link selection can be influenced by network fluctuation and instability factors, so that the video playing quality is reduced or interrupted. Therefore, a method for analyzing link communication quality and performing real-time switching in the process of playing the short message of the video is needed to solve the above problems, so the invention provides a method and a system for fast playing the short message video based on the 5G technology.
Disclosure of Invention
In order to solve the technical problems, the invention provides a short message video quick playing method and a system based on a 5G technology, and the adopted technical scheme is as follows:
in a first aspect, an embodiment of the present invention provides a method for fast playing a short message video based on a 5G technology, where the method includes the following steps:
collecting real-time link data of a communicable link in a monitoring time interval and link data of a historical reference data segment;
for communication data in a monitoring time interval of any one communicable link, constructing the basic time delay variation stability of the link according to the time delay difference between different communication data; obtaining the sub-sequence distribution confusion degree of the link according to the differential distribution relation of the link communication data in the monitoring time interval; correcting the stability of the basic time delay change according to the chaotic degree of each time delay difference subsequence to obtain the time delay stability of the link;
for each historical reference data segment of each historical day, constructing the daily delay correlation of any two links according to the average delay and the time delay stability of the links in all the historical reference data segments of each day; constructing the reliability of the time delay correlation between any two links according to the difference of the time delay correlation between any two links every day under all historical acquisition days; constructing time delay stability after correction of each link according to the reliability and time delay stability of the time delay correlation between each link and other links;
constructing link allocation preference of each link according to the time delay stability of each link after correction and the average time delay in a real-time monitoring time interval; and selecting a link with the highest recommended preference to transmit the short message video.
Preferably, the constructing the basic delay variation stability of the link according to the time delay difference between different communication data includes:
acquiring the time delay average value of all communication data of a link in a monitoring time interval;
for each communication data in a link monitoring time interval, calculating the absolute value of the difference value between the time delay of each communication data and the average value of the time delay, and taking the inverse number of the sum value of the absolute value of the difference values of all communication data in the link monitoring time interval as an index of an exponential function based on a natural constant; and taking the calculation result of the exponential function as the basic time delay variation stability of the link.
Preferably, the obtaining the sub-sequence distribution confusion degree of the link according to the differential distribution relation of the link communication data in the monitoring time interval includes:
calculating the time delay difference value between all communication data and the adjacent next communication data in the monitoring time interval of the link;
taking the Euclidean distance between the time delay difference value of the communication data and the corresponding moment of the communication data as a clustering distance, adopting a clustering algorithm to obtain a first clustering result of the communication data in a link monitoring time interval, and sequencing the communication data in each clustering cluster in the first clustering result according to a time sequence to form a time delay difference subsequence of each clustering cluster;
obtaining the chaotic degree of each time delay difference subsequence; calculating the average value of the chaotic degree of all the time delay difference subsequences; and taking the average value of the chaotic degree of all the time delay difference subsequences and the absolute value of the difference of the average value as the chaotic degree of the subsequence distribution.
Preferably, the obtaining the confusion degree of each time delay difference subsequence includes:
taking the time delay difference value of the communication data as a clustering distance, adopting a clustering algorithm to obtain a second clustering result of the communication data in the link monitoring time interval, and marking a cluster in the second clustering result as a time delay difference value cluster, wherein the degree of confusion of the jth time delay difference subsequence is the cluster of the time delay difference valueThe expression of (2) is:
wherein,representing the kind of the delay difference cluster contained in the jth delay difference subsequence, and +.>Representing the number of communication data belonging to the s-th delay difference cluster in the j-th delay difference subsequence,/and>and respectively representing the average value of the time delay difference values of all communication data in the s-th time delay difference value cluster and the e-th time delay difference value cluster in the j-th time delay difference subsequence.
Preferably, the correcting the stability of the basic delay variation according to the chaotic degree of each delay difference sub-sequence to obtain the time delay stability of the link includes:
obtaining the sum of the chaotic degrees of all delay difference subsequences; taking a normalized value of the product of the sum and the sub-sequence distribution disorder degree of the link as the time delay difference variation stability degree of the link;
and taking the product of the time delay difference variation stability degree and the basic time delay variation stability of the link as the time delay stability of the link.
Preferably, the time delay correlation of any two links per day is constructed according to the difference between the average time delay of the links in all the historical reference data segments per day and the time delay variation stability, and the expression is as follows:
wherein,representing the delay dependence of link a and link b on day o, norm () represents the normalization function, P represents the number of historical reference time periods, +.>、/>Respectively representing the time delay stability of link a, link b in the u-th historical reference data segment,/->、/>Respectively representing the mean value of the time delay stability of the link a, the link b in the u-th historical reference data segment,/>、/>Represents the average delay of link a, link b in the u-th historical reference data segment,/-respectively>、/>The average delay of links a, b in all historical reference data segments is shown, respectively.
Preferably, the reliability of the delay correlation between any two links is constructed according to the difference of the delay correlation between any two links every day in all the acquisition days of history, and the expression is as follows:
wherein,reliability of delay dependency between links a and b, is represented by +.>An exponential function based on a natural constant e, T representing the number of days of acquisition of the historical reference data segment, +.>Representing the delay dependence of link a and link b on day o, +.>And (5) representing the average value of the time delay correlation of the link a and the link b under all historical acquisition days.
Preferably, the time delay stability after each link correction is constructed according to the reliability, time delay stability and time delay correlation between each link and other links, and the expression is:
wherein,indicating the time delay stability after link a correction, < >>Representing the time delay stability of link a, norm () represents the normalization function, E represents the number of communicable links, +.>Reliability of delay dependency between links a and b, is represented by +.>Representing the time delay stability of link b, T represents the number of acquisition days of the historical reference data segment,indicating the delay dependence of link a and link b on day o.
Preferably, the constructing the link allocation preference of each link according to the time delay stability after each link is modified and the average time delay in the real-time monitoring time interval includes:
taking the ratio of the time delay stability of each link after correction to the average time delay in the real-time monitoring time interval as the preference of each link; dividing the product of the preference and the bandwidth of each link by the packet loss rate at the real-time monitoring time interval to obtain the distribution preference of the links.
In a second aspect, an embodiment of the present invention further provides a short message video fast playing system based on a 5G technology, where the short message video fast playing system includes a memory, a processor, and a computer program stored in the memory and running on the processor, where the processor implements the steps of any one of the methods described above when executing the computer program.
The invention has at least the following beneficial effects:
according to the invention, through analyzing based on the link delay data, important parameters for evaluating the link communication quality are taken as the possibility of analyzing link optimization, the performances of two layers of stability and fluctuation change of different communication data under the time delay are mined, and more accurate delay change information is obtained, so that the corrected time delay stability is obtained, and the link optimization evaluation result is more reasonable; based on the time delay stability and the average time delay difference, deeply analyzing the correlation relationship between different real-time links and historical reference data segments, so that a large number of resource allocation conditions in a specific time of a history are mined according to the historical time delay change information, the resource allocation of links or other links is indirectly influenced, the time delay correlation between the real-time links is searched, the link selection of time delay sudden increase is avoided, and the reliability of the link selection is increased; the invention corrects the time delay stability of the current link by the time delay correlation of other links, and uses the time delay condition of other links to assist the analysis and prediction of the current link, thereby obtaining more reliable link time delay information and improving the judgment accuracy of the current link as the preference of the short message video communication link; and finally, constructing a link preference index according to the link delay information and other parameters of the link, and further selecting the link with the highest preference from the obtained links for distribution, thereby achieving the purpose of high-speed playing of the short message video, greatly improving the speed of playing the short message video by a user, reducing the video blocking caused by improper distribution of the link, and greatly improving the playing experience of the user.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions and advantages of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a short message video fast playing method based on a 5G technology provided by the invention;
fig. 2 is a flowchart of the index construction of link allocation preference.
Detailed Description
In order to further describe the technical means and effects adopted by the invention to achieve the preset aim, the following is a detailed description of the specific implementation, structure, characteristics and effects of the method and system for fast playing short message video based on 5G technology according to the invention with reference to the accompanying drawings and the preferred embodiments. In the following description, different "one embodiment" or "another embodiment" means that the embodiments are not necessarily the same. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
The following specifically describes a specific scheme of the short message video fast playing method and system based on the 5G technology provided by the invention with reference to the accompanying drawings.
The embodiment of the invention provides a method and a system for fast playing short message video based on a 5G technology.
Specifically, the following method for fast playing short message video based on 5G technology is provided, please refer to fig. 1, and the method comprises the following steps:
in step S001, real-time link information and history link information of the communicable link are acquired.
According to the embodiment, the data acquisition analysis is carried out on the communicable links between the two parties of receiving and transmitting the short messages, when the router carries out link selection, the router can select according to the communication quality of different links, and then the purpose of improving the playing speed of the video short messages is achieved by controlling and selecting the short message video to send and download the high-speed links in real time.
Wherein the acquired link data comprises: real-time link status, i.e., link channel usage, and historical link road usage. And counting the parameters of bandwidth, time delay, packet loss rate and the like of each link in the monitoring and distributing time interval, so that the subsequent analysis is convenient.
Step S002, analyzing the stable state and the correlation degree of the time delay change of the communicable link, and simultaneously correcting the stability of the time delay change by combining the reference historical data to obtain the link preference, so as to realize the selection of the link and complete the quick play of the short message video.
Among the important parameters for evaluating the communication quality of the link, the delay parameter is one of the important parameters, so this embodiment focuses on analyzing based on the link delay variation, and thus selects a preferred communication link based on the analysis result.
The embodiment analyzes any real-time link in the communicable links, wherein the calculation method of the basic delay variation stability of the current link is as follows:
because the communication quality of the link is continuously changed, the calculation of the stability of the obtained delay variation cannot be performed by means of methods such as delay variance, etc., and in order to obtain more accurate delay variation information, the embodiment uses the analysis of the stability of the delay variation as a description parameter for evaluating the stability of the delay variation, wherein the calculation method of obtaining the stability of the basic delay variation by the obtained current link is as follows:
wherein,representing the basic delay variation stability of the current link in the monitoring time interval, exp () represents an exponential function based on a natural constant e, M represents the communication data quantity of the link in the monitoring time interval,/>Time delay representing the r-th communication data, < >>Representing the time delay average of the link traffic data during the monitoring interval.
It should be noted that, when the time delay corresponding to the link communication data acquired according to the time sequence is required, the larger the difference between the time delay average value of the link communication data obtained in each monitoring time interval is, that isThe larger the base change stability of the resulting time delay over the current time period, the smaller the base change stabilityThe more severe the time delay variation, the more unstable the current link is, the +.>The smaller.
Meanwhile, the communication data obtained in the monitoring time interval are analyzed, and the time delay change trend of the link in the time period is analyzed, so that the stability of basic time delay change is corrected:
firstly, calculating a time delay difference value between communication data at the ith moment and communication data at the (i+1) th moment according to the obtained data, further obtaining a group of time delay difference value sequences, and clustering the obtained time delay difference value sequences, wherein a DBSCAN clustering algorithm is used by a clustering algorithm, is a known technology, and is not repeated in the embodiment, parameters of the DBSCAN clustering algorithm are set to be r=3, the mints=3, the clustering distance is the Euclidean distance between the time delay difference value and the time, so that a first clustering result is obtained, the total number of clusters in the first clustering result is marked as W, and the communication data in each clustering cluster are sequenced from small to large according to time sequence, so as to form a time delay difference subsequence of each clustering cluster; and simultaneously, clustering all the data of the links by taking the clustering distance as the time delay difference value to obtain a second clustering result, and marking the cluster in the second clustering result as the time delay difference value cluster, namely, the communication data at each moment has the time delay difference value cluster to which the communication data belong. According to a second aggregation result of communication data at each moment in the time delay difference subsequence, analyzing the chaotic distribution condition of the time delay change, and simultaneously calculating the chaotic degree of each time delay difference subsequence:
wherein,indicating the degree of confusion of the jth delay variation sub-sequence,/-, for example>Indicating the kind of the cluster of delay difference values contained in the jth delay difference subsequence,/>representing the number of communication data belonging to the s-th delay difference cluster in the j-th delay difference subsequence,/and>、/>and respectively representing the average value of the time delay difference values of all communication data in the s-th time delay difference value cluster and the e-th time delay difference value cluster in the j-th time delay difference subsequence.
It should be noted that, when the delay difference subsequence is obtained, the type of the delay difference cluster of the delay difference subsequence is determinedThe more, the more communication data quantity belonging to the same cluster in the time delay difference subsequence>The less the difference between the current time delay difference subsequence and the cluster of other time delay differences in the subsequence is larger, the chaotic degree of the current time delay difference subsequence is described>The larger.
Obtaining the confusion degree of each time delay difference subsequence according to the method, and analyzing the distribution confusion degree of the subsequence of the current link:
where Tb represents the degree of confusion of the subsequence distribution of the current link, F represents the number of delay-difference subsequences,indicating the degree of confusion of the jth delay variation sub-sequence,/-, for example>Representing the average of the degree of confusion of all delay-difference subsequences.
It should be noted that, when the degree of confusion of the obtained delay difference subsequence and the degree of confusion of the overall delay difference subsequence are larger, it is described that the more chaotic the distribution of the current delay difference subsequence is, the more unstable the delay state of the current link is.
Obtaining the stability of the time delay difference value change of the current link according to the chaos degree of each time delay difference sub-sequence correspondingly:
where Yc represents the degree of stability of the delay difference variation of the current link, norm () represents the normalization function, tb represents the degree of confusion of the sub-sequence distribution of the current link,indicating the degree of confusion of the jth delay variation sub-sequence.
It should be noted that, when the degree of confusion of the subsequence of the delay difference value is smaller and the degree of confusion of the corresponding subsequence distribution is smaller, the more stable the current delay difference value is.
Correcting the stability of the basic time delay change according to the stability of the time delay difference value change, thereby obtaining the time delay stability of the current link:
wherein Fx represents the time delay stability of the current link, sw represents the basic time delay change stability of the current link in the monitoring time interval, and Yc represents the time delay difference change stability degree of the current link.
It should be noted that, when the obtained stability of the basic delay variation is greater and the stability of the corresponding delay difference value variation Yc is greater, the time delay stability Fx of the corresponding current link is greater. And thus, the correction of the stability of the basic delay change is completed, and the time delay stability Fx of the current link is obtained.
Although the link allocation resources are real-time, that means that the link delay is changed in real time, a lot of resources are always required to be allocated to some links in a specific time period, so that the resource allocation of the links or other links is affected, and the link delay is changed, so that the embodiment obtains the change relation between the link delay change and the time by analyzing the historical data, and then predicts and analyzes the current link delay change to determine whether the delay of the current link delay change has the possibility of sudden increase, thereby avoiding selecting the corresponding links and increasing the reliability of selecting the links. Taking all historical reference data segments of the collected histories every day as an example, calculating the time delay correlation of the links every day:
wherein,representing the delay dependence of link a and link b on day o, norm () represents the normalization function, P represents the number of historical reference time periods, +.>、/>Respectively representing the time delay stability of link a, link b in the u-th historical reference data segment,/->、/>Respectively representing the mean value of the time delay stability of the link a, the link b in the u-th historical reference data segment,/>、/>Represents the average delay of link a, link b in the u-th historical reference data segment,/-respectively>、/>The average delay of links a, b in all historical reference data segments is shown, respectively.
It should be noted that, when the difference between the ratio of the corresponding average delay of the two links in each historical reference time period of each day and the ratio of the average delay of the two links in all historical reference data periods of each day is smaller, and the difference between the ratio of the corresponding delay variation stability and the ratio of the average delay variation stability is also smaller, the stronger the delay correlation of the two links under the historical acquisition days is illustrated.
According to the analysis, the time delay correlation between the two links in all historical acquisition days is acquired for analysis, so that the reliability of the time delay correlation between any two links is acquired:
wherein,reliability of delay dependency between links a and b, is represented by +.>An exponential function based on a natural constant e, T representing the number of days of acquisition of the historical reference data segment, +.>Representing the delay dependence of link a and link b on day o, +.>And (5) representing the average value of the time delay correlation of the link a and the link b under all historical acquisition days.
It should be noted that when the difference between the daily delay correlation of the links a and b and the average value of the delay correlation of the links a and b is smaller in all the historical acquisition days, that isThe smaller the reliability of the link correlation of link a and link b, i.e +.>The larger.
According to the analysis, the time delay of the current time link can be analyzed and predicted, so that the preference of the current link as the link of the short message video communication is analyzed according to the analysis and prediction result, and the stability of the time delay after the correction of the link a is adoptedThe following are examples:
wherein,indicating the time delay stability after link a correction, < >>、/>Time delay stability of links a, b, respectively, norm () represents normalization function, E represents number of communicable links, +.>Representing the reliability of the delay correlation between link a and link b, T representing the number of days the historical reference data segment was acquired,/->Indicating the delay dependence of link a and link b on day o.
It should be noted that, when the link with stronger correlation with the current link delay is obtained, the stability of the corresponding time delay is also stronger, the stability of the time delay of the current link is also stronger, so far, the time delay stability of the link a after correction is obtained according to other link data analysis.
Wherein,indicating the preference of link a,/->Indicating the time delay stability after link a correction, < >>Representing the average delay of link a over the real-time monitoring time interval.
It should be noted that, when the smaller the obtained time delay is within the corresponding monitoring time interval of the current link, and the stronger the stability of the obtained time delay is according to the historical data, the greater the preference of the link obtained by the current link based on the time delay analysis is.
And further acquiring link allocation preference by combining the obtained link data information:
wherein,indicating the allocation preference of link a, +.>Representing the bandwidth of link a, +.>Indicating the preference of link a,/->And the packet loss rate of the link a in the real-time monitoring time interval is shown.
It should be noted that, when the current link bandwidth is calculated to be larger, the packet loss rate in the detection period is smaller, and the link preference obtained based on the time delay analysis is larger, the current link is calculated to be more preferred. The index construction flow chart of the link allocation preference is shown in fig. 2.
And selecting a link with the largest distribution preference to transmit and download the short message video according to the distribution preference of each selected link so as to achieve the aim of fast playing the short message video.
This embodiment is completed.
Based on the same inventive concept as the above method, the embodiment of the invention also provides a short message video fast playing system based on the 5G technology, which comprises a memory, a processor and a computer program stored in the memory and running on the processor, wherein the processor realizes the steps of any one of the short message video fast playing methods based on the 5G technology when executing the computer program.
In summary, according to the embodiment of the invention, through analyzing the link delay data, the important parameters for evaluating the link communication quality are taken as the possibility of analyzing the link preference, the performances of two layers of stability and fluctuation change of different communication data under the time delay are mined, and more accurate delay change information is obtained, so that the corrected time delay stability is obtained, and the evaluation result of the link preference is more reasonable; based on the time delay stability and the average time delay difference, deeply analyzing the correlation relationship between different real-time links and historical reference data segments, so that a large number of resource allocation conditions in a specific time of a history are mined according to the historical time delay change information, the resource allocation of links or other links is indirectly influenced, the time delay correlation between the real-time links is searched, the link selection of time delay sudden increase is avoided, and the reliability of the link selection is increased; the embodiment of the invention corrects the time delay stability of the current link by the time delay correlation of the other links, and uses the time delay condition of the other links to assist the analysis and the prediction of the current link, thereby obtaining more reliable link time delay information and improving the judgment accuracy of the current link as the optimization degree of the short message video communication link; and finally, constructing a link preference index according to the link delay information and other parameters of the link, and further selecting the link with the highest preference from the obtained links for distribution, thereby achieving the purpose of high-speed playing of the short message video, greatly improving the speed of playing the short message video by a user, reducing the video blocking caused by improper distribution of the link, and greatly improving the playing experience of the user.
It should be noted that: the sequence of the embodiments of the present invention is only for description, and does not represent the advantages and disadvantages of the embodiments. And the foregoing description has been directed to specific embodiments of this specification. 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.
In this specification, each embodiment is described in a progressive manner, and the same or similar parts of each embodiment are referred to each other, and each embodiment mainly describes differences from other embodiments.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; the technical solutions described in the foregoing embodiments are modified or some of the technical features are replaced equivalently, so that the essence of the corresponding technical solutions does not deviate from the scope of the technical solutions of the embodiments of the present application, and all the technical solutions are included in the protection scope of the present application.
Claims (10)
1. The short message video quick playing method based on the 5G technology is characterized by comprising the following steps of:
collecting real-time link data of a communicable link in a monitoring time interval and link data of a historical reference data segment;
for communication data in a monitoring time interval of any one communicable link, constructing the basic time delay variation stability of the link according to the time delay difference between different communication data; obtaining the sub-sequence distribution confusion degree of the link according to the differential distribution relation of the link communication data in the monitoring time interval; correcting the stability of the basic time delay change according to the chaotic degree of each time delay difference subsequence to obtain the time delay stability of the link;
for each historical reference data segment of each historical day, constructing the daily delay correlation of any two links according to the average delay and the time delay stability of the links in all the historical reference data segments of each day; constructing the reliability of the time delay correlation between any two links according to the difference of the time delay correlation between any two links every day under all historical acquisition days; constructing time delay stability after correction of each link according to the reliability and time delay stability of the time delay correlation between each link and other links;
constructing link allocation preference of each link according to the time delay stability of each link after correction and the average time delay in a real-time monitoring time interval; and selecting a link with the highest recommended preference to transmit the short message video.
2. The method for fast playing short message video based on 5G technology as claimed in claim 1, wherein the constructing the basic delay variation stability of the link according to the time delay difference between different communication data comprises:
acquiring the time delay average value of all communication data of a link in a monitoring time interval;
for each communication data in a link monitoring time interval, calculating the absolute value of the difference value between the time delay of each communication data and the average value of the time delay, and taking the inverse number of the sum value of the absolute value of the difference values of all communication data in the link monitoring time interval as an index of an exponential function based on a natural constant; and taking the calculation result of the exponential function as the basic time delay variation stability of the link.
3. The method for fast playing short message video based on 5G technology as claimed in claim 1, wherein the obtaining the sub-sequence distribution confusion degree of the link according to the differential distribution relation of the link communication data in the monitoring time interval comprises:
calculating the time delay difference value between all communication data and the adjacent next communication data in the monitoring time interval of the link;
taking the Euclidean distance between the time delay difference value of the communication data and the corresponding moment of the communication data as a clustering distance, adopting a clustering algorithm to obtain a first clustering result of the communication data in a link monitoring time interval, and sequencing the communication data in each clustering cluster in the first clustering result according to a time sequence to form a time delay difference subsequence of each clustering cluster;
obtaining the chaotic degree of each time delay difference subsequence; calculating the average value of the chaotic degree of all the time delay difference subsequences; and taking the average value of the chaotic degree of all the time delay difference subsequences and the absolute value of the difference of the average value as the chaotic degree of the subsequence distribution.
4. The method for fast playing a short message video based on the 5G technology as claimed in claim 3, wherein the obtaining the confusion degree of each delay difference subsequence comprises:
taking the time delay difference value of the communication data as a clustering distance, adopting a clustering algorithm to obtain a second clustering result of the communication data in the link monitoring time interval, and marking a cluster in the second clustering result as a time delay difference value cluster, wherein the degree of confusion of the jth time delay difference subsequence is the cluster of the time delay difference valueThe expression of (2) is:
wherein,representing the kind of the delay difference cluster contained in the jth delay difference subsequence, and +.>Representing the number of communication data belonging to the s-th delay difference cluster in the j-th delay difference subsequence,/and>and respectively representing the average value of the time delay difference values of all communication data in the s-th time delay difference value cluster and the e-th time delay difference value cluster in the j-th time delay difference subsequence.
5. The method for fast playing short message video based on 5G technology as claimed in claim 3, wherein the correcting the stability of basic delay variation according to the chaotic degree of each delay difference sub-sequence to obtain the time delay stability of the link comprises:
obtaining the sum of the chaotic degrees of all delay difference subsequences; taking a normalized value of the product of the sum and the sub-sequence distribution disorder degree of the link as the time delay difference variation stability degree of the link;
and taking the product of the time delay difference variation stability degree and the basic time delay variation stability of the link as the time delay stability of the link.
6. The method for fast playing short message video based on 5G technology as claimed in claim 1, wherein the time delay correlation of any two links per day is constructed according to the difference between the average time delay of links in all the historical reference data segments per day and the stability of the time delay variation, and the expression is:
wherein,indicating the delay correlation of link a and link b on day o, norm () represents the normalization function, P represents the number of historical reference periods, +.>、/>Respectively representing the time delay stability of link a, link b in the u-th historical reference data segment,/->、/>Respectively representing the mean value of the time delay stability of the link a, the link b in the u-th historical reference data segment,/>、/>Representing the average delay of links a and b in the u-th historical reference data segment,、/>the average delay of links a, b in all historical reference data segments is shown, respectively.
7. The method for fast playing short message video based on 5G technology as claimed in claim 1, wherein the reliability of the delay correlation between any two links is constructed according to the difference of the delay correlation between any two links every day under all the acquisition days of history, and the expression is:
wherein,reliability of delay dependency between links a and b, is represented by +.>An exponential function based on a natural constant e, T representing the number of days of acquisition of the historical reference data segment, +.>Representing the delay dependence of link a and link b on day o, +.>And (5) representing the average value of the time delay correlation of the link a and the link b under all historical acquisition days.
8. The method for fast playing short message video based on 5G technology as claimed in claim 1, wherein the time delay stability after each link correction is constructed according to the reliability, time delay stability and time delay correlation between each link and other links, and the expression is:
wherein,indicating the time delay stability after link a correction, < >>Representing the time delay stability of link a, norm () represents the normalization function, E represents the number of communicable links, +.>Representing the relationship between links a and bReliability of delay dependence +.>Representing the time delay stability of link b, T represents the number of acquisition days of the historical reference data segment,indicating the delay dependence of link a and link b on day o.
9. The method for fast playing short message video based on 5G technology as claimed in claim 1, wherein the constructing the link allocation preference of each link according to the time delay stability after each link is modified and the average time delay in the real-time monitoring time interval comprises:
taking the ratio of the time delay stability of each link after correction to the average time delay in the real-time monitoring time interval as the preference of each link; dividing the product of the preference and the bandwidth of each link by the packet loss rate at the real-time monitoring time interval to obtain the distribution preference of the links.
10. A 5G technology based short message video fast play system comprising a memory, a processor and a computer program stored in said memory and running on said processor, characterized in that said processor implements the steps of the method according to any one of claims 1-9 when executing said computer program.
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