CN115549762B - Satellite communication session processing method, computer device and storage medium - Google Patents

Satellite communication session processing method, computer device and storage medium Download PDF

Info

Publication number
CN115549762B
CN115549762B CN202211165815.6A CN202211165815A CN115549762B CN 115549762 B CN115549762 B CN 115549762B CN 202211165815 A CN202211165815 A CN 202211165815A CN 115549762 B CN115549762 B CN 115549762B
Authority
CN
China
Prior art keywords
satellite
communication
pdu session
inter
predicted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202211165815.6A
Other languages
Chinese (zh)
Other versions
CN115549762A (en
Inventor
吴维芝
王丹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Aipu Road Network Technology Co Ltd
Original Assignee
Guangzhou Aipu Road Network Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Aipu Road Network Technology Co Ltd filed Critical Guangzhou Aipu Road Network Technology Co Ltd
Priority to CN202211165815.6A priority Critical patent/CN115549762B/en
Publication of CN115549762A publication Critical patent/CN115549762A/en
Application granted granted Critical
Publication of CN115549762B publication Critical patent/CN115549762B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18519—Operations control, administration or maintenance
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
    • G06N3/00—Computing arrangements based on biological models
    • G06N3/02—Neural networks
    • G06N3/08—Learning methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18513—Transmission in a satellite or space-based system
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention discloses a satellite communication session processing method, a computer device and a storage medium. The invention can analyze the inter-satellite link through which the data of the satellite communication session passes, determine the communication delay which is possibly faced by the communication through the inter-satellite link, and make configuration such as maintaining PDU session or releasing PDU session according to the communication delay, so as to prejudge the communication quality of the PDU session, ensure that the satellite communication system can maintain the PDU session with high quality more easily, avoid the occupation of the communication resource by the PDU session with low quality, and optimize the communication service quality and resource utilization of the satellite communication system. The invention is widely applied to the technical field of satellite communication.

Description

Satellite communication session processing method, computer device and storage medium
Technical Field
The present invention relates to the field of satellite communications technologies, and in particular, to a satellite communications session processing method, a computer device, and a storage medium.
Background
Satellite communications are evolving very rapidly, but there are also some drawbacks that are not apparent in terrestrial communications. Taking satellite communication implemented by means of low-orbit satellites as an example, because the mobility of the low-orbit satellites is very strong, the propagation delay of the low-orbit satellite backhaul varies with the movement of the satellites, while for multi-hop ISL backhaul, the backhaul path delay may vary drastically. The unstable delay change in the satellite backhaul has great influence on satellite communication quality, such as unstable conversation, data error or incapability of conversation, which can not provide qualified communication service on the one hand, and unnecessary load on a satellite communication system on the other hand, which affects the realization of other normal communication services.
Term interpretation:
ISL: inter-Satellite Link;
PDU: protocol Data Unit, protocol data unit;
PCF: policy and Charging Function policy and charging functions;
AF: application Function, application functions;
AMF: access and Mobility Management Function access and mobility management functions;
LSTM: long Short-Term Memory, long-Term Memory;
UE: user End, user terminal.
Disclosure of Invention
Aiming at the technical problems that in the existing satellite communication technology, the path delay of the multi-hop ISL backhaul possibly causes unstable conversation or errors, thereby reducing satellite communication quality and the like, the invention aims to provide a satellite communication conversation processing method, a computer device and a storage medium.
In one aspect, an embodiment of the present invention includes a method for processing a satellite communication session, including:
establishing a PDU session;
determining an inter-satellite link corresponding to the PDU session;
acquiring satellite constellation operation information corresponding to the inter-satellite link;
predicting according to the satellite constellation operation information to obtain predicted communication delay information;
and configuring the PDU session according to the predicted communication delay information.
Further, the determining the inter-satellite link corresponding to the PDU session includes:
determining a source node and a destination node corresponding to the PDU session;
according to the source node and the destination node, routing is carried out, and a communication satellite passing through from the source node to the destination node is determined;
the inter-satellite links are composed of all communication satellites that pass through.
Further, the obtaining satellite constellation operation information corresponding to the inter-satellite link includes:
determining at least some of the communication satellites in the inter-satellite link as target communication satellites;
and acquiring satellite constellation operation information corresponding to all the target communication satellites respectively to form satellite constellation operation information corresponding to the inter-satellite links.
Further, the determining at least some of the communication satellites in the inter-satellite link as target communication satellites includes:
acquiring respective service loads of the communication satellites;
and determining a plurality of communication satellites with highest service loads as the target communication satellite.
Further, the predicting, according to the satellite constellation operation information, obtains predicted communication delay information, including:
establishing a long-period and short-period memory network;
inputting the satellite constellation operation information into the long-term and short-term memory network for processing;
and acquiring the predicted communication delay information output by the long-short-period memory network.
Further, the configuring the PDU session according to the predicted communication delay information includes:
and releasing the PDU session when the predicted communication delay information is greater than a first threshold.
Further, the configuring the PDU session according to the predicted communication delay information includes:
and when the predicted communication delay information is larger than a second threshold value and smaller than a first threshold value, performing coding compensation on the PDU session.
Further, the performing coding compensation on the PDU session includes:
acquiring a data unit to be transmitted in the PDU session;
determining a plurality of candidate coding modes; different candidate coding modes generate different time delays when the same data are coded;
selecting one candidate coding mode from a plurality of candidate coding modes according to the predicted communication delay information, and determining the selected candidate coding mode as a target coding mode; wherein the time delay corresponding to the selected candidate coding mode is inversely related to the size of the predicted communication delay information;
and encoding the data unit in the target encoding mode.
In another aspect, embodiments of the present invention also include a computer apparatus including a memory for storing at least one program and a processor for loading the at least one program to perform the satellite communication session processing method of the embodiments.
In another aspect, the embodiments of the present invention further include a storage medium having stored therein a processor-executable program which, when executed by a processor, is for performing the satellite communication session processing method of the embodiments.
The beneficial effects of the invention are as follows: the satellite communication session processing method in the embodiment can analyze the inter-satellite link through which the data of the satellite communication session passes, determine the communication delay possibly faced by communication through the inter-satellite link, and make configuration such as maintaining the PDU session or releasing the PDU session according to the communication delay, so that the communication quality of the PDU session can be prejudged, the satellite communication system can maintain the high-quality PDU session more easily, the occupation of the communication resource by the low-quality PDU session is avoided, and the communication service quality and the resource utilization of the satellite communication system are optimized.
Drawings
FIG. 1 is a schematic diagram showing steps of a satellite communication session processing method in an embodiment;
fig. 2 is a schematic diagram of the structure and operation principle of the satellite communication system according to the embodiment;
FIG. 3 is a schematic diagram of an inter-satellite link in an embodiment;
fig. 4 is a schematic structural diagram of a long-term and short-term memory network in an embodiment.
Detailed Description
In this embodiment, referring to fig. 1, the satellite communication session processing method includes the steps of:
s1, establishing a PDU session;
s2, determining an inter-satellite link corresponding to the PDU session;
s3, acquiring satellite constellation operation information corresponding to an inter-satellite link;
s4, predicting according to satellite constellation operation information to obtain predicted communication delay information;
s5, configuring the PDU session according to the predicted communication delay information.
Steps S1-S5 may be applied in the satellite communication system shown in fig. 2. Referring to fig. 2, the satellite communication system includes communication satellites (which may be low-orbit satellites) operating in space, and network elements such as AMF, PCF, AF and NWDAF in a terrestrial communication core network (which may be a 5G core network, i.e., 5 GC).
Referring to fig. 2, a communication satellite is accessible to a user terminal UE, and the communication terminal may be connected to a communication core network (specifically, may be an AMF in the communication core network). Steps S1-S5 may be performed by a terrestrial communication core network. Specifically, steps S1 and S2 may be performed by the AMF, the AMF is requested by the NWDAF to perform step S3, the NWDAF performs step S4, and after obtaining the predicted communication delay information, the NWDAF may transmit the predicted communication delay information to the AMF, the AMF transmits the predicted communication delay information to the PCF/AF, and the PCF/AF performs step S5.
In this embodiment, when the AMF performs step S2, that is, the step of determining the inter-satellite link corresponding to the PDU session, the following steps may be specifically performed:
s201, determining a source node and a destination node corresponding to a PDU session;
s202, routing is carried out according to a source node and a destination node, and a communication satellite passing through from the source node to the destination node is determined;
s203, forming an inter-satellite link by all communication satellites passing through.
Referring to fig. 3, when step S201 is performed, a source node and a destination node corresponding to the PDU session are determined, where the source node may be a ground base station to which a user terminal UE represented by the leftmost side in fig. 3 is connected, and the destination node may be a 5G core network (5 GC) to which the user terminal UE represented by the rightmost side in fig. 3 is to be connected. In step S202, the AMF may execute a routing algorithm to determine communication satellites to be passed from the source node to the destination node, and the communication satellites form inter-satellite links in the order of sequential connection.
In this embodiment, when executing step S3, that is, the step of acquiring the satellite constellation operation information corresponding to the inter-satellite link, the AMF may specifically execute the following steps:
s301, determining at least part of communication satellites in an inter-satellite link as target communication satellites;
s302, acquiring satellite constellation operation information corresponding to all target communication satellites respectively to form satellite constellation operation information corresponding to inter-satellite links.
In this embodiment, the inter-satellite link includes a plurality of communication satellites, each of which is a hop in the inter-satellite link, and each of which has respective satellite constellation operation information. Specifically, the satellite constellation operation information of each communication satellite may include acquisition time, satellite number, orbit plane number, operation period, orbit height, orbit inclination angle, working frequency band, transmission delay, transmission rate, charging standard, and the format of the satellite constellation operation information of each communication satellite may be shown in table 1.
TABLE 1
Acquisition time Transmission delay Transmission rate … …
T1 5s 25kbps … …
T2 4s 30kbps … …
T3 6s 20kbps … …
… … … … …
In step S301, all communication satellites in the inter-satellite link may be determined as target communication satellites, and then steps S301 to S302 are performed, which actually combine the satellite constellation operation information corresponding to all the communication satellites in the inter-satellite link into satellite constellation operation information corresponding to the inter-satellite link, where the satellite constellation operation information corresponding to the inter-satellite link may be stored in a vector form, and each of the satellite constellation operation information corresponding to each of the communication satellites may be used as a component in the satellite constellation operation information corresponding to the inter-satellite link, and each of the components may be further subdivided into components such as acquisition time, satellite number, and orbital plane number.
In step S302, only a part of communication satellites in the inter-satellite link may be determined as the target communication satellites, and then steps S301 to S302 are performed, in which the satellite constellation operation information corresponding to each part of communication satellites in the inter-satellite link is actually combined into satellite constellation operation information corresponding to the inter-satellite link, where the satellite constellation operation information corresponding to the inter-satellite link may be stored in a vector form, and each of the satellite constellation operation information corresponding to each of the target communication satellites may be used as a component in the satellite constellation operation information corresponding to the inter-satellite link, and each component may be further subdivided into components such as acquisition time, satellite number, and orbital plane number.
Under the condition that only part of communication satellites in the inter-satellite links are determined as target communication satellites, the number of components in the satellite constellation operation information corresponding to the whole inter-satellite links can be reduced, so that the data volume of the satellite constellation operation information corresponding to the whole inter-satellite links is reduced, and the data volume to be processed when the step S4 is executed is reduced.
In this embodiment, when step S301 is performed, that is, when at least some communication satellites in the inter-satellite link are determined as target communication satellites, the following steps may be specifically performed:
s30101, acquiring respective service loads of all communication satellites;
s30102, determining a plurality of communication satellites with highest service loads as target communication satellites.
In step S30101, the traffic load of each communication satellite may be represented by a unified index, for example, one of indexes such as the data amount transmitted in the same time period, the number of connected user terminals at the same time, and the highest bandwidth reached at the same time is used to represent the traffic load of one communication satellite, and in general, the larger the data amount transmitted by one communication satellite, the larger the number of connected user terminals, and the higher the highest bandwidth reached, the higher the traffic load of this communication satellite.
In step S30102, a value K (for example, k=3) may be set, and K communication satellites with the highest traffic load are determined as target communication satellites. In this way, when executing step S302, the satellite constellation operation information corresponding to each of the K communication satellites with the highest traffic load is used to form the satellite constellation operation information corresponding to the inter-satellite link, and the satellite constellation operation information corresponding to each of the other communication satellites is not included in the satellite constellation operation information corresponding to the inter-satellite link.
By executing steps S30101-S30102, the satellite constellation operation information corresponding to the inter-satellite link comes from the high-load communication satellite, and under the condition that the same load variable occurs (for example, the same number of user terminals are newly connected or disconnected), the load fluctuation proportion of the high-load communication satellite is relatively low, so that the satellite constellation operation information of the high-load communication satellite has better stability, and therefore, the satellite constellation operation information corresponding to the inter-satellite link obtained by executing steps S30101-S30102 has better stability, and when the method is used for executing S4 to predict, a more accurate prediction effect can be expected, and meanwhile, the advantages of smaller data volume of the satellite constellation operation information corresponding to the inter-satellite link are maintained.
In this embodiment, when the NWDAF performs step S4, that is, the step of predicting the predicted communication delay information according to the satellite constellation operation information, the following steps may be specifically performed:
s401, establishing a long-period memory network;
s402, inputting satellite constellation operation information into a long-period and short-period memory network for processing;
s403, obtaining predicted communication delay information output by the long-period and short-period memory network.
Since the operation of satellite constellations is time-varying and periodic, it is well suited to modeling satellite constellation operation information using the LSTM model.
In step S401, the structure of the established long-short-period memory network LSTM is shown in fig. 4. Wherein f t 、i t 、o t Respectively representing a forgetting gate, an input gate and an output gate, wherein the forgetting gate is used for controlling the memory value, the input gate is used for controlling the input value, and the output gate is used for controlling the output value.
The input of the long-short-term memory network LSTM can be the output h of the long-short-term memory network LSTM at the last time (t-1 time) t-1 And data x at the current time (time t) t (current data x t The satellite constellation operation information corresponding to the inter-satellite link at the time t can be;
output of long-short-term memory network LSTM: most preferably, the first to fourthOutput h of the terminal t . Predicting communication delay information h t The meaning of the method is that the long-term memory network LSTM predicts according to the satellite constellation operation information corresponding to the inter-satellite link, and the determined communication delay possibly occurs if the inter-satellite link is used for communication.
In step S5, according to the predicted communication delay information predicted in step S4, configuring the PDU session, for example, when the communication delay indicated by the predicted communication delay information is smaller than the first threshold, determining that if the communication is performed on the inter-satellite link, the generated communication delay is low, and maintaining the PDU session is acceptable, and determining to maintain the PDU session; when the communication delay indicated by the predicted communication delay information is greater than a first threshold, it is determined that if communication is performed on the inter-satellite link, the generated communication delay is high, and the communication quality of the PDU session cannot be accepted, and the PDU session is determined to be released.
By executing steps S1-S5, an inter-satellite link through which data of a satellite communication session passes can be analyzed, communication delay which may face communication through the inter-satellite link is determined, and configurations such as maintaining a PDU session or releasing the PDU session are made according to the communication delay, so that the communication quality of the PDU session can be prejudged, the satellite communication system can maintain a high-quality PDU session more easily, occupation of communication resources by a low-quality PDU session is avoided, and communication service quality and resource utilization of the satellite communication system are optimized.
In this embodiment, before step S5 is performed, a first threshold value and a second threshold value may be set, where the first threshold value is greater than the second threshold value, and the magnitude of the predicted communication delay information may be determined by the first threshold value and the second threshold value, where the first threshold value and the second threshold value have the same dimension (e.g., milliseconds) as the predicted communication delay information.
In performing step S5, that is, the step of configuring the PDU session according to the predicted communication delay information, the following steps may be specifically performed:
s501, when the predicted communication delay information is larger than a first threshold value, releasing the PDU session;
s502, when the predicted communication delay information is larger than a second threshold value and smaller than a first threshold value, coding compensation is carried out on the PDU session.
In step S501, when the predicted communication delay information is greater than the first threshold, it is determined that if the communication is performed by the inter-satellite link, the generated communication delay is too high to accept the communication quality of the PDU session, and the PDU session is released, so that the low-quality PDU session can be prevented from occupying resources of the satellite communication system, which are used for guaranteeing other PDU sessions.
In step S502, when the predicted communication delay information is smaller than the first threshold, it is determined that the communication delay of the inter-satellite link is not too high, and the PDU session is not released, and because the predicted communication delay information is larger than the first threshold, it is determined that the communication delay of the inter-satellite link is at a higher level, and the influence caused by the communication delay of the inter-satellite link can be reduced by performing code compensation on the PDU session.
In performing step S502, namely, the step of performing code compensation for the PDU session, the following steps may be specifically performed:
s50201, acquiring a data unit to be transmitted in a PDU session;
s50202, determining a plurality of candidate coding modes; different candidate coding modes generate different time delays when coding the same data;
s50203, selecting one candidate coding mode from a plurality of candidate coding modes according to the predicted communication delay information, and determining the candidate coding mode as a target coding mode; wherein, the time delay corresponding to the selected candidate coding mode is inversely related to the size of the predicted communication delay information;
s50204, coding the data unit in a target coding mode.
In step S50201, the data units may have different forms at different levels in the OSI model system. For example, at the physical layer (one layer), data units may refer to data streams (streams); at the data link layer (two layers), a data unit may be a data Frame (Frame); at the network layer (three layers), the data units may be data packets (packets); at the transport layer (four layers), the data units may be data segments (segments). The coding of the individual layer data units may have different meanings. For example, for the data unit of the physical layer, the encoding mode thereof includes Polar codes, LDPC codes, turbo codes, convolutional codes, and the like, and steps S50201 to S50204 are described in terms of the data unit of the physical layer.
In step S50202, encoding modes such as Polar codes, LDPC codes, turbo codes, and convolutional codes may be set as candidate encoding modes. The principle of coding modes such as Polar codes and LDPC codes is different, and the Polar codes and the LDPC codes have different transmission rates, anti-interference capacity and other communication performances when transmitting the same data unit, and meanwhile, have different time delays due to different algorithm complexity. For example, in a general case, the delay generated by the Turbo code is larger than that of the Polar code and the LDPC code, but the Turbo code has relatively strong anti-interference performance.
In step S50203, one candidate coding mode is selected from the plurality of candidate coding modes based on the predicted communication delay information, and the selected candidate coding mode is determined as the target coding mode. Specifically, if the predicted communication delay information is larger, a candidate coding mode with smaller time delay (for example, a Polar code or an LDPC code) is selected, whereas if the predicted communication delay information is smaller, a candidate coding mode with larger time delay (for example, a Turbo code) is selected.
In step S50204, the data unit is encoded in the target encoding mode selected in step S50203. Specifically, if the target coding mode selected in step S50203 is the same as the currently used coding mode, then continuing to encode the data unit using the currently used coding mode; if the target coding mode selected in step S50203 is different from the currently used coding mode, switching to the target coding mode selected in step S50203 to code the data unit.
By executing steps S50201-S50204, the data unit to be transmitted in the PDU session can be encoded by intelligently switching the encoding mode with proper time delay according to the size of the predicted communication delay information, so that the sum of the time delay generated in the process of encoding (and corresponding decoding) the data unit and the time delay generated in the process of transmitting through the inter-satellite link is at a stable level, which is beneficial to maintaining or improving the working stability of the satellite communication system.
The satellite communication session processing method in the present embodiment may be executed by writing a computer program for executing the satellite communication session processing method in the present embodiment, writing the computer program into a computer device or a storage medium, and when the computer program is read out to run, thereby achieving the same technical effects as the satellite communication session processing method in the embodiment.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly or indirectly fixed or connected to the other feature. Further, the descriptions of the upper, lower, left, right, etc. used in this disclosure are merely with respect to the mutual positional relationship of the various components of this disclosure in the drawings. As used in this disclosure, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In addition, unless defined otherwise, all technical and scientific terms used in this example have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description of the embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used in this embodiment includes any combination of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could also be termed a second element, and, similarly, a second element could also be termed a first element, without departing from the scope of the present disclosure. The use of any and all examples, or exemplary language (e.g., "such as") provided herein, is intended merely to better illuminate embodiments of the invention and does not pose a limitation on the scope of the invention unless otherwise claimed.
It should be appreciated that embodiments of the invention may be implemented or realized by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The methods may be implemented in a computer program using standard programming techniques, including a non-transitory computer readable storage medium configured with a computer program, where the storage medium so configured causes a computer to operate in a specific and predefined manner, in accordance with the methods and drawings described in the specific embodiments. Each program may be implemented in a high level procedural or object oriented programming language to communicate with a computer system. However, the program(s) can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language. Furthermore, the program can be run on a programmed application specific integrated circuit for this purpose.
Furthermore, the operations of the processes described in the present embodiments may be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes (or variations and/or combinations thereof) described in this embodiment may be performed under control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications), by hardware, or combinations thereof, that collectively execute on one or more processors. The computer program includes a plurality of instructions executable by one or more processors.
Further, the method may be implemented in any type of computing platform operatively connected to a suitable computing platform, including, but not limited to, a personal computer, mini-computer, mainframe, workstation, network or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and so forth. Aspects of the invention may be implemented in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optical read and/or write storage medium, RAM, ROM, etc., such that it is readable by a programmable computer, which when read by a computer, is operable to configure and operate the computer to perform the processes described herein. Further, the machine readable code, or portions thereof, may be transmitted over a wired or wireless network. When such media includes instructions or programs that, in conjunction with a microprocessor or other data processor, implement the steps described above, the invention described in this embodiment includes these and other different types of non-transitory computer-readable storage media. The invention also includes the computer itself when programmed according to the methods and techniques of the present invention.
The computer program can be applied to the input data to perform the functions described in this embodiment, thereby converting the input data to generate output data that is stored to the non-volatile memory. The output information may also be applied to one or more output devices such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including specific visual depictions of physical and tangible objects produced on a display.
The present invention is not limited to the above embodiments, but can be modified, equivalent, improved, etc. by the same means to achieve the technical effects of the present invention, which are included in the spirit and principle of the present invention. Various modifications and variations are possible in the technical solution and/or in the embodiments within the scope of the invention.

Claims (8)

1. A satellite communication session processing method, the satellite communication session processing method comprising:
establishing a PDU session;
determining an inter-satellite link corresponding to the PDU session;
acquiring satellite constellation operation information corresponding to the inter-satellite link;
predicting according to the satellite constellation operation information to obtain predicted communication delay information;
configuring the PDU session according to the predicted communication delay information;
the configuring the PDU session according to the predicted communication delay information includes:
when the predicted communication delay information is larger than a second threshold value and smaller than a first threshold value, performing coding compensation on the PDU session;
the coding compensation for the PDU session includes:
acquiring a data unit to be transmitted in the PDU session;
determining a plurality of candidate coding modes; different candidate coding modes generate different time delays when the same data are coded;
selecting one candidate coding mode from a plurality of candidate coding modes according to the predicted communication delay information, and determining the selected candidate coding mode as a target coding mode; wherein the time delay corresponding to the selected candidate coding mode is inversely related to the size of the predicted communication delay information;
and encoding the data unit in the target encoding mode.
2. The method for processing the satellite communication session according to claim 1, wherein determining the inter-satellite link corresponding to the PDU session comprises:
determining a source node and a destination node corresponding to the PDU session;
according to the source node and the destination node, routing is carried out, and a communication satellite passing through from the source node to the destination node is determined;
the inter-satellite links are composed of all communication satellites that pass through.
3. The method for processing a satellite communication session according to claim 1, wherein the obtaining satellite constellation operation information corresponding to the inter-satellite link includes:
determining at least some of the communication satellites in the inter-satellite link as target communication satellites;
and acquiring satellite constellation operation information corresponding to all the target communication satellites respectively to form satellite constellation operation information corresponding to the inter-satellite links.
4. A satellite communication session processing method according to claim 3, wherein said determining at least some of the communication satellites in the inter-satellite link as target communication satellites comprises:
acquiring respective service loads of the communication satellites;
and determining a plurality of communication satellites with highest service loads as the target communication satellite.
5. The method according to claim 1, wherein predicting the predicted communication delay information according to the satellite constellation operation information comprises:
establishing a long-period and short-period memory network;
inputting the satellite constellation operation information into the long-term and short-term memory network for processing;
and acquiring the predicted communication delay information output by the long-short-period memory network.
6. The satellite communication session processing method according to claim 1, wherein configuring the PDU session according to the predicted communication delay information comprises:
and releasing the PDU session when the predicted communication delay information is greater than a first threshold.
7. A computer apparatus comprising a memory for storing at least one program and a processor for loading the at least one program to perform the satellite communication session processing method of any one of claims 1-6.
8. A computer readable storage medium, in which a processor executable program is stored, characterized in that the processor executable program is for performing the satellite communication session processing method according to any one of claims 1-6 when being executed by a processor.
CN202211165815.6A 2022-09-23 2022-09-23 Satellite communication session processing method, computer device and storage medium Active CN115549762B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211165815.6A CN115549762B (en) 2022-09-23 2022-09-23 Satellite communication session processing method, computer device and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211165815.6A CN115549762B (en) 2022-09-23 2022-09-23 Satellite communication session processing method, computer device and storage medium

Publications (2)

Publication Number Publication Date
CN115549762A CN115549762A (en) 2022-12-30
CN115549762B true CN115549762B (en) 2023-09-01

Family

ID=84729926

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211165815.6A Active CN115549762B (en) 2022-09-23 2022-09-23 Satellite communication session processing method, computer device and storage medium

Country Status (1)

Country Link
CN (1) CN115549762B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102792372A (en) * 2010-03-02 2012-11-21 瑞典爱立信有限公司 Source code adaption based on communication link quality and source coding delay
CN107346988A (en) * 2017-06-20 2017-11-14 大连大学 A kind of appearance based on low-track satellite network late/hold circuit network route computing method
CN112803988A (en) * 2021-01-25 2021-05-14 哈尔滨工程大学 Hybrid contact graph routing method based on link error rate prediction and suitable for satellite internet scene
CN113965965A (en) * 2020-07-21 2022-01-21 大唐移动通信设备有限公司 Quality of service (QoS) control method, equipment and storage medium

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102792372A (en) * 2010-03-02 2012-11-21 瑞典爱立信有限公司 Source code adaption based on communication link quality and source coding delay
CN107346988A (en) * 2017-06-20 2017-11-14 大连大学 A kind of appearance based on low-track satellite network late/hold circuit network route computing method
CN113965965A (en) * 2020-07-21 2022-01-21 大唐移动通信设备有限公司 Quality of service (QoS) control method, equipment and storage medium
CN112803988A (en) * 2021-01-25 2021-05-14 哈尔滨工程大学 Hybrid contact graph routing method based on link error rate prediction and suitable for satellite internet scene

Also Published As

Publication number Publication date
CN115549762A (en) 2022-12-30

Similar Documents

Publication Publication Date Title
Nassar et al. Reinforcement learning for adaptive resource allocation in fog RAN for IoT with heterogeneous latency requirements
Neely Energy optimal control for time-varying wireless networks
Neely Dynamic power allocation and routing for satellite and wireless networks with time varying channels
EP3078172B1 (en) Framework for traffic engineering in software defined networking
CN112422644B (en) Method and system for unloading computing tasks, electronic device and storage medium
Labidi et al. Joint multi-user resource scheduling and computation offloading in small cell networks
Neely Intelligent packet dropping for optimal energy-delay tradeoffs in wireless downlinks
Lin et al. Three-tier capacity and traffic allocation for core, edges, and devices for mobile edge computing
CN104509019B (en) Method and apparatus for provided for radio resources management
Li et al. A delay-aware caching algorithm for wireless D2D caching networks
Dong et al. Joint optimization with DNN partitioning and resource allocation in mobile edge computing
Yun et al. 5G multi-RAT URLLC and eMBB dynamic task offloading with MEC resource allocation using distributed deep reinforcement learning
Azimi et al. Ultra-reliable cloud mobile computing with service composition and superposition coding
Tsukamoto et al. Feedback control for adaptive function placement in uncertain traffic changes on an advanced 5G system
Han et al. Dynamic routing for software-defined LEO satellite networks based on ISL attributes
Blaszczyszyn et al. Quality of real-time streaming in wireless cellular networks—Stochastic modeling and analysis
Yuan et al. Data freshness optimization in relaying network operating with finite blocklength codes
Yu et al. Dynamic transmit covariance design in MIMO fading systems with unknown channel distributions and inaccurate channel state information
CN115549762B (en) Satellite communication session processing method, computer device and storage medium
Castiglione et al. Energy-neutral source-channel coding with battery and memory size constraints
Ekbatani et al. Outage behavior of slow fading channels with power control using partial and erroneous CSIT
CN110536308A (en) A kind of multinode calculating discharging method based on game
Mwasinga et al. Rasm: Resource-aware service migration in edge computing based on deep reinforcement learning
Nassar et al. Reinforcement learning-based resource allocation in fog RAN for IoT with heterogeneous latency requirements
Dubey et al. Computation offloading techniques in mobile edge computing environment: A review

Legal Events

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