CN107634913A - A kind of service traffics control and the satellite borne equipment system of Differentiated Services - Google Patents

A kind of service traffics control and the satellite borne equipment system of Differentiated Services Download PDF

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CN107634913A
CN107634913A CN201710725566.4A CN201710725566A CN107634913A CN 107634913 A CN107634913 A CN 107634913A CN 201710725566 A CN201710725566 A CN 201710725566A CN 107634913 A CN107634913 A CN 107634913A
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module
token
data
information
cycle
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CN107634913B (en
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张冬
宋艳军
孙艳红
李毅
何元智
王立民
王维
崔永康
王莉娜
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Institute Of Network Information Institute Of Systems Engineering Academy Of Military Sciences
CETC 54 Research Institute
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Abstract

The invention discloses service traffics control and differentiated services system between a kind of satellite borne equipment, it is related to the satellite communication field based on on-board processing.It is made up of parts such as satellite borne equipment A rate identification module, token bucket module, the speed parsing module for sending processing module, queue management module, transmission scheduler module and satellite borne equipment B, receiving processing module, data fifo modules.Speed parsing module and rate identification module parsing telecommand and setting agreement obtain rate information;Token bucket module is used for service traffics shaping and control function;Queue management module and transmission scheduler module realize multilevel precedence queue management and output scheduling;Data fifo module realizes data buffer storage management;Send processing module and receiving processing module realizes data-moving and output.The present invention has the advantages that flow controls, supports that Differentiated Services, scalability are strong, it is few to take resource between supporting satellite borne equipment, especially suitable for the satellite communication system based on on-board processing.

Description

A kind of service traffics control and the satellite borne equipment system of Differentiated Services
Technical field
The present invention relates to the system of service traffics control and Differentiated Services between a kind of satellite borne equipment, belong to satellite communication system On-board processing field.
Background technology
Conventional Transparent Transponder is also referred to as bent-tube boiler transponder because its is simple in construction, dependable performance, in Satellite Payloads In the case of being limited with power, it is widely used.But with the development of communication technology of satellite, the increase of portfolio With the raising to QoS requirement, to the satellite communication system availability of frequency spectrum, power system capacity, communication quality, network connectivty, Communication link efficiency, the dynamic reorganization ability of network and interference free performance etc. propose strict and urgent requirement, with The progress of technology and the change of application demand, satellite communication gradually develops from transparent forwarding towards the direction of on-board processing.
Satellite communication causes to need to carry out service traffics control on star, especially due to the difference of down-link reception ability It is the development of phased array antenna technology, the demand is more urgent.And service traffics control is often faced with and abandons partial service number It can will enter the discarding of the significant datas such as logout and network management information according to bag, if random drop, bring immeasurable risk.
The content of the invention
The technical problems to be solved by the invention provide a kind of spaceborne set in the weak point in above-mentioned background technology Service traffics control and differentiated services system between standby.The present invention have support satellite borne equipment between flow control, support Differentiated Services, Scalability is strong, takes the advantages that resource is few, especially suitable for the satellite communication system based on on-board processing.
The technical solution adopted in the present invention is:
A kind of service traffics control and the satellite borne equipment system of Differentiated Services, include satellite borne equipment A rate identification module 1st, processing module 4, queue management module 6 and satellite borne equipment B speed parsing module 2, receiving processing module 5, data are sent Fifo module 8, it is characterised in that:Token bucket module 3 and transmission scheduler module 7 also including satellite borne equipment A;
Satellite borne equipment B speed parsing module 2, which is used to parsing external remote control to instruct to obtain rate information, to be exported to receiving area Module 5 is managed, and the transmission information that rate information and data fifo module 8 are inputted is exported to spaceborne according to the protocol data of setting The rate identification module 1 of device A;
Rate identification module 1 is used to identify rate information from the protocol data received and sends information, by speed Information exports barrel module 3 that gives token, and transmission information is exported and gives transmission processing module 4;
Queue management module 6 is used to receive external data and according to prioritization management, is realized altogether using chained list mode Caching multilevel precedence queue management is enjoyed, data are stored in corresponding to inside in priority query, and by each priority query Frame length information, which exports, gives transmission scheduler module 7;Be additionally operable to send scheduler module 7 scheduling under by data output to send scheduling Module 7;
Send scheduler module 7 is used to whether perform transmission scheduling according to the cache information decision-making for sending the output of processing module 4, To the frame length information of the application queue of queue management module 6 if cache information is sky, and the frame length information applied is sent to Token bucket module 3 is used to apply sending token;It is additionally operable to receive the feedback token of token bucket module 3, if feedback token is permission Send out group signal then to extract data from the corresponding queue of queue management module 6 and be sent to transmission processing module 4, otherwise press Next queue is dispatched according to the dispatching algorithm of setting;
Token bucket module 3, which is used to be produced according to the token bucket algorithm of setting according to rate information, sends token, and according to connecing Whether the frame length information decision current data of receipts allows to send out team, and token is fed back to and sends scheduler module 7;
Processing module 4 is sent to be cached for data will to be received, and it is whether that data are defeated according to information decision is sent Go out, data read to the receiving processing module 5 for being output to satellite borne equipment B if sending information and being to allow to send information from caching, Otherwise continue waiting for allowing to send information;It is additionally operable to export cache information to transmission scheduler module 7;
After receiving processing module 5 carries out verification adaptation for the data that the transmission processing module 4 to satellite borne equipment A inputs, The information that allows to send inputted according to data fifo module 8 sends the data to data fifo module 8;It is additionally operable to export read signal To data fifo module 8, and receive the data of the output of data fifo module 8;Being additionally operable to will according to the flow control algorithm of setting The data read from data fifo module 8 are sent with the speed of rate information requirement;
Data fifo module 8 is used to set a programmable lower limit and a programmable upper limit, if under caching reaches Output allows to send information to receiving processing module 5 in limited time, if output stopping sends information to receiving area when caching reaches the upper limit Manage module 5;It is additionally operable to cache the data of input, and the read signal inputted according to interface processing module 5 is by data read-out Export to interface processing module 5.
Wherein, described satellite borne equipment A token bucket module 3 includes counter, token application enables module, the cycle reaches Enabled module, cycle increase token number module and computing module;
The enabled module of token application is used to receive satellite borne equipment A transmission scheduler modules 7 for applying for transmission token During frame length information, sent in effective status, and by oneself state to computing module;
Counter is used to count once when clock is in effective status, and is sent to after the cycle for reaching setting is counted Enabled module is reached up to periodic signal to the cycle is counted, and resets and counts again;
Cycle reaches enabled module and is used to be in effective status after receiving arrival and counting periodic signal, and sends the cycle Increasing signal to the cycle increases token number module;It is additionally operable to send oneself state to computing module;
Cycle increase token number module is used to increase token number after cycle increase signal is received, and will increase order the cycle Board number is sent to computing module;
Computing module is used to enter maintenance state when token application enables module and the enabled module of cycle arrival is all invalid, Do not deal with;Token application enable that module is invalid and the cycle reach enabled module it is effective when enter renewal token bucket state, sentence Whether the remaining token number that breaks is more than token bucket sum plus cycle increase token number, if more than if remaining token keep count of same token Bucket is total, and otherwise remaining token number increase cycle increase token number on the basis of original obtains new remaining token number;In token The enabled module of application effectively and the cycle reach enabled module it is invalid when enter to become a mandarin control state, whether judgment frame long message is more than residue Token number, do not allow to send out group signal if exporting more than if, otherwise output allows to send out group signal, while remaining token number Frame length information number is reduced on the basis of original and obtains new remaining token number;Make when token application enables module and cycle arrival System enters when energy module is simultaneously effective updates token bucket and stream control state simultaneously, is added in frame length information more than remaining token number In the case of cycle increase token number, output does not allow to send out group signal, while judges remaining token number plus cycle increase order Whether board number is more than token bucket sum, and if remaining token keeps count of more than if, same token bucket is total, and otherwise remaining token number is in original Increase cycle increase token number on the basis of coming and obtain new remaining token number, added in frame length information less than or equal to remaining token number In the case of cycle increase token number, output allows to send out group signal, while judges remaining token number plus cycle increase token Number subtracts whether frame length information is more than token bucket sum again, if more than if remaining token keep count of same token bucket sum, otherwise remain Remaining token number increase cycle increase token number on the basis of original subtracts frame length information and obtains new remaining token number again.
Wherein, described satellite borne equipment A transmission scheduler module 7 uses time slot weighted scheduling algorithm, i.e., will from time domain Scheduling time is divided into multiple scheduling sub-slots, and each priority query obtains scheduled according to the scheduling sublayer number of time slot of occupancy Chance.
The present invention has the following advantages that compared to background technology:
1. the present invention realizes the flow control between satellite borne equipment, do not carried out for other modules in ancillary equipment and equipment Description and constraint, have the characteristics that scalability is strong, realize that occupancy resource is few.
2. the present invention uses time slot weighted scheduling algorithm, the dispatch deal of multilevel precedence can be achieved, realize high priority Preferential forwarding strategy, while support dynamic and configurable function.
3. inventive flow control algolithm uses the token bucket algorithm based on frame length, service traffics shaping, stream control are realized Speed is accurate and solves the flow control problems of bursty traffic.
Brief description of the drawings
Fig. 1 is the satellite borne equipment system implementation electrical schematic diagram of a kind of service traffics control of the present invention and Differentiated Services.
Fig. 2 is the state realization figure of the token bucket algorithm based on frame length.
Embodiment
The satellite borne equipment system of reference picture 1, a kind of service traffics control of the present invention and Differentiated Services, including satellite borne equipment A Rate identification module 1, token bucket module 3, send processing module 4, queue management module 6 and send scheduler module 7 and spaceborne Equipment B speed parsing module 2, receiving processing module 5 and data fifo module 8.Fig. 1 is electrical schematic diagram of the embodiment of the present invention, Embodiment is according to Fig. 1 connection lines.
A kind of satellite borne equipment B of the satellite borne equipment system of the service traffics control and Differentiated Services speed parsing module 2 effect is that parsing external remote control instructs to obtain rate information and is sent to receiving processing module 5, and by rate information with from data The transmission information that fifo module 8 inputs is sent to satellite borne equipment A rate identification module 1 according to the protocol data of setting;Speed The effect of identification module 1 is to receive protocol data to identify rate information and send information, and rate information is exported to order Board bucket module 3, transmission information is exported and gives transmission processing module 4;The effect of queue management module 6 is to receive external data and root According to prioritization management, shared buffer memory multilevel precedence queue management is realized using chained list mode, data are stored in corresponding excellent First level queue is medium to be read out;The effect for sending scheduler module 7 is that the cache information decision-making exported according to transmission processing module 4 is No perform sends scheduling, applies for frame length information to queue management module 6 if cache information is sky, and the frame length applied is believed Breath be sent to token bucket module 3 be used for apply transmission token;Wherein, send scheduler module 7 and use time slot weighted scheduling algorithm, i.e., Multiple scheduling sub-slots will be divided into scheduling time from time domain, each priority query obtains according to the scheduling sublayer number of time slot of occupancy To scheduled chance;The effect of token bucket module 3 is to be produced to send order according to the token bucket algorithm of setting according to rate information Board, and whether allow to send out team according to the frame length information decision current data of reception, token is fed back into transmission scheduler module 7;Another effect for sending scheduler module 7 is after obtaining feedback token information, by data from queue management if allowing to send Extract and be sent in the corresponding queue of module 6 and send processing module 4, otherwise dispatch next queue according to the dispatching algorithm of setting; The effect for sending processing module 4 is will to receive data to be cached, according to whether sending information decision by data output, if Allow to send the receiving processing module 5 that data are then output to satellite borne equipment B by information from caching reading, otherwise continue waiting for allowing Information is sent, and cache information is exported and gives transmission scheduler module 7;The effect of receiving processing module 5 is the hair to satellite borne equipment A The information that allows to send that the data for sending processing module 4 to input inputted after verification adaptation according to data fifo module 8 is sent to Data fifo module 8;The effect of data fifo module 8 is to set a programmable lower limit and a programmable upper limit, if Output allows to send information when caching reaches lower limit, if output stops sending information when caching reaches the upper limit, another effect is Export read signal to data fifo module 8 and read data;Another effect of data fifo module 8 is that the data of input are delayed Deposit, exported data read-out to interface processing module 5 according to the read signal that interface processing module 5 inputs;Interface processing module 5 Another effect is with rate information requirement according to the flow control algorithm of setting by the data read in data fifo module 8 Speed is sent.
The satellite borne equipment system of reference picture 2, a kind of service traffics control of the present invention and Differentiated Services, using based on frame length Token bucket algorithm.The realization principle of the described token bucket algorithm based on frame length is as follows:
Token bucket algorithm based on frame length, formed by seven using parameter and four systemses state, be respectively using parameter Token bucket sum P1, counter P2, cycle increase token number P3, frame length information P4, remaining token number P5, token application enable P6 And the cycle reaches enabled P7, system mode is respectively maintenance state S1, renewal token bucket state S2, stream control state S3 and more simultaneously New token bucket and stream control state S4;
Wherein, token bucket sum P1 sets token number according to caching situation, generally using ping-pong buffer, therefore It may be configured as two caching number sums;Counter P2 is counted always, is reset after the cycle of setting is reached and is counted again, now The enabled P7 of cycle arrival is effective, and the cycle of setting can use the greatest common divisor of rate value, so as to realize that each notch speed rate being capable of numeral Represent;Cycle increase token number P3 is each notch speed rate arranges value, and the value can be worth to by setting cycle and each notch speed rate;Frame length Information P4 is that satellite borne equipment A sends the value that scheduler module 7 inputs;Remaining token number P5 is used to characterize also surplus more in current token bucket Few token can be used for sending;When satellite borne equipment A sends the application transmission token of scheduler module 7, it is effective that token application enables P6;
Token bucket module 3 includes counter, token application enables module, the cycle reaches enabled module, cycle increase token Digital-to-analogue block and computing module;
Token application enables module and is used to be used to apply sending token in the transmission scheduler module 7 for receiving satellite borne equipment A Frame length information when, sent in effective status, and by oneself state to computing module;
Counter P2 is used to count once when clock is in effective status, and is sent after the cycle for reaching setting is counted Reach and count periodic signal to the enabled module of cycle arrival, and reset and count again;
Cycle reaches enabled module and is used to be in effective status after receiving arrival and counting periodic signal, and sends the cycle Increasing signal to the cycle increases token number module;It is additionally operable to send oneself state to computing module;
Cycle increase token number module is used to increase token number after cycle increase signal is received, and will increase order the cycle Board number P3 is sent to computing module;
When token application enables the enabled P6 of token application of module and the cycle reaches the cycle of enabled module in computing module System enters maintenance state S1 when the enabled P7 of arrival is invalid, and system is now without any processing;When token application enable P6 without Effect and cycle reach enabled P7 it is effective when system enter renewal token bucket state S2, judge remaining token number P5 plus cycle increase Whether token number P3 is more than token bucket sum P1, and remaining token number P5 numbers are otherwise remaining with token bucket sum P1 if being more than Token number P5 increases cycle increase token number P3 on the basis of original and obtains new remaining token number P5;When token application enables P6 Effectively and the cycle reach enabled P7 it is invalid when system enter to become a mandarin control state S3, whether judgment frame long message P4 is more than remaining token number P5, do not allow to send out group signal if exporting more than if, otherwise output allows to send out group signal while remaining token number P5 exists Frame length information P4 numbers are reduced on the basis of originally and obtain new remaining token number P5;Make when token application enables P6 and cycle arrival System enters when energy P7 is simultaneously effective updates token bucket and stream control state S4 simultaneously, is more than remaining token number P5 in frame length information P4 In the case of cycle increase token number P3, output does not allow to send out group signal, while judges remaining token number P5 plus week Whether phase increase token number P3 is more than token bucket sum P1, and remaining token number P5 numbers are no with token bucket sum P1 if being more than Then remaining token number P5 increase cycle increase token number P3 on the basis of original obtain new remaining token number P5, in frame length information In the case of P4 is less than or equal to remaining token number P5 plus cycle increase token number P3, output allows to send out group signal, sentences simultaneously The remaining token number P5 that breaks subtracts whether frame length information P4 is more than token bucket sum P1 again plus cycle increase token number P3, if being more than Then remaining token number P5 numbers increase cycle increase token with token bucket sum P1, otherwise remaining token number P5 on the basis of original Number P3 subtracts frame length information P4 and obtains new remaining token number P5 again.
Briefly operation principle of the invention is as follows:
Satellite borne equipment B speed parsing module 2, which parses external remote control and instructs to obtain rate information, is sent to reception processing mould Block 5, and rate information is sent to satellite borne equipment with the transmission information inputted from data fifo module 8 according to setting protocol data A rate identification module 1;Rate identification module 1 receives protocol data and identifies rate information and send information, by speed Information exports barrel module 3 that gives token, and transmission information is exported and gives transmission processing module 4;Queue management module 6 receives external data And according to prioritization management, shared buffer memory multilevel precedence queue management is realized using chained list mode, by data deposit pair Answer priority query is medium to be read out;Send whether scheduler module 7 is held according to the cache information decision-making for sending the output of processing module 4 Row sends scheduling, applies for frame length information to queue management module 6 if cache information is sky, and the frame length information applied is sent out Give token bucket module 3;Token bucket module 3 produces according to the token bucket algorithm of setting according to rate information and sends token, and root Whether allow to send out team according to the frame length information decision current data of reception, and feed back to and send scheduler module 7;Send scheduling mould After block 7 obtains feedback information, if data are extracted from the corresponding queue of queue management module 6 if allowing to send and are sent to transmission Processing module 4, otherwise dispatch next queue according to the dispatching algorithm of setting;Transmission processing module 4 will receive data and be delayed Deposit, according to whether sending information decision by data output, data are then output to star from caching reading if allowing to send information Equipment B receiving processing module 5 is carried, otherwise continues waiting for allowing to send information;Hair of the receiving processing module 5 to satellite borne equipment A The data for sending processing module 4 to input are sent to data fifo module 8 after carrying out verification adaptation;Data fifo module 8 sets one Programmable lower limit and a programmable upper limit, if output allows to send information when caching reaches lower limit, if caching reaches Output in limited time stops sending information;Data fifo module 8 inputs to the data buffer storage of input according to interface processing module 5 simultaneously Read signal data read-out is exported to interface processing module 5;Interface processing module 5 is according to the flow control algorithm of setting by number Sent according to the data read in fifo module 8 with the speed of rate information requirement.

Claims (3)

1. a kind of service traffics control and the satellite borne equipment system of Differentiated Services, include satellite borne equipment A rate identification module (1) processing module (4) and queue management module (6) and satellite borne equipment B speed parsing module (2), receiving processing module, are sent And data fifo module (8) (5), it is characterised in that:Token bucket module (3) and transmission scheduler module also including satellite borne equipment A (7);
Satellite borne equipment B speed parsing module (2), which is used to parsing external remote control to instruct to obtain rate information, to be exported to reception processing Module (5), and the transmission information that rate information and data fifo module (8) are inputted is exported to star according to the protocol data of setting Carry the rate identification module (1) of device A;
Rate identification module (1) is used to identify rate information from the protocol data received and sends information, and speed is believed Breath output gives token a barrel module (3), will send information and exports to sending processing module (4);
Queue management module (6) is used for the data for receiving outside input and according to prioritization management, real using chained list mode Existing shared buffer memory multilevel precedence queue management, data are stored in priority query corresponding to inside, and by each priority team The frame length information of row is exported to transmission scheduler module (7);It is additionally operable to data output in the case where sending the scheduling of scheduler module (7) extremely Send scheduler module (7);
Send scheduler module (7) is used to whether perform transmission scheduling according to the cache information decision-making for sending processing module (4) output, To the frame length information of queue management module (6) application queue if cache information is sky, and the frame length information applied is sent Barrel module that gives token (3) is used to apply sending token;It is additionally operable to receive the feedback token of token bucket module (3), if feedback token Then data are extracted from the corresponding queue of queue management module (6) and it is sent to transmission processing module to allow to send out group signal (4), otherwise next queue is dispatched according to the dispatching algorithm of setting;
Token bucket module (3), which is used to be produced according to the token bucket algorithm of setting according to rate information, sends token, and according to reception Frame length information decision current data whether allow to send out team, by token feed back to send scheduler module (7);
Processing module (4) is sent to be used to receive data and be cached, and according to whether sending information decision by data output, Data are read to the receiving processing module (5) for being output to satellite borne equipment B if sending information and being to allow to send information from caching, it is no Then continue waiting for allowing to send information;It is additionally operable to export cache information to sending scheduler module (7);
After receiving processing module (5) carries out verification adaptation for the data of transmission processing module (4) input to satellite borne equipment A, The information that allows to send inputted according to data fifo module (8) sends the data to data fifo module (8);Output is additionally operable to read Signal receives the data of data fifo module (8) output to data fifo module (8);It is additionally operable to the flow control according to setting Algorithm processed sends the speed that the data read from data fifo module (8) are required with rate information;
Data fifo module (8) is used to set a programmable lower limit and a programmable upper limit, if caching reaches lower limit When output allow to send information to receiving processing module (5), if caching when reaching the upper limit output stopping send information to receiving area Manage module (5);It is additionally operable to cache the data of input, and the read signal inputted according to interface processing module (5) is by data Read output and give interface processing module (5).
2. a kind of service traffics control according to claim 1 and the satellite borne equipment system of Differentiated Services, it is characterised in that: Described satellite borne equipment A token bucket module (3) includes counter, token application enables module, the cycle reaches enabled module, week Phase increases token number module and computing module;
Token application enables module and is used in the frame for receiving satellite borne equipment A transmission scheduler modules (7) for applying for sending token During long message, sent in effective status, and by oneself state to computing module;
Counter is used to count once when clock is in effective status, and is sent to after the cycle for reaching setting is counted up to meter Signal reached to the cycle and enabled module one number time, and reset and count again;
Cycle reaches enabled module and is used to be in effective status after receiving arrival and counting periodic signal, and sends cycle increase Signal to the cycle increases token number module;It is additionally operable to send oneself state to computing module;
Cycle increase token number module is used to increase token number after cycle increase signal is received, and will increase token number in the cycle Send to computing module;
Computing module is used to enter maintenance state when token application enables module and the enabled module of cycle arrival is all invalid, does not make Processing;Token application enable that module is invalid and the cycle reach enabled module it is effective when enter renewal token bucket state, judge surplus Whether remaining token number is more than token bucket sum plus cycle increase token number, if more than if the remaining token same token bucket that keeps count of it is total Count, otherwise remaining token number increase cycle increase token number on the basis of original obtains new remaining token number;In token application Enabled module effectively and the cycle reach enabled module it is invalid when enter to become a mandarin control state, whether judgment frame long message is more than remaining token Number, do not allow to send out group signal if exporting more than if, otherwise output allows to send out group signal, while remaining token number is in original Frame length information number is reduced on the basis of coming and obtains new remaining token number;When token application enables module and the enabled mould of cycle arrival System enters when block is simultaneously effective updates token bucket and stream control state simultaneously, and the cycle is added more than remaining token number in frame length information In the case of increasing token number, output does not allow to send out group signal, while judges remaining token number plus cycle increase token number Whether token bucket sum is more than, and if remaining token keeps count of more than if, same token bucket is total, and otherwise remaining token number is in original base Increase cycle increase token number on plinth and obtain new remaining token number, the cycle is added less than or equal to remaining token number in frame length information In the case of increasing token number, output allows to send out group signal, while judges remaining token number plus cycle increase token number again Frame length information is subtracted whether more than token bucket sum, same token bucket is total, and otherwise residue makes if remaining token keeps count of more than if Board number increase cycle increase token number on the basis of original subtracts frame length information and obtains new remaining token number again.
3. a kind of service traffics control according to claim 1 and the satellite borne equipment system of Differentiated Services, it is characterised in that: Described satellite borne equipment A transmission scheduler module (7) uses time slot weighted scheduling algorithm, i.e., will be divided scheduling time from time domain For multiple scheduling sub-slots, each priority query obtains scheduled chance according to the scheduling sublayer number of time slot of occupancy.
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CN109257303B (en) * 2018-10-31 2021-12-28 京信网络系统股份有限公司 QoS queue scheduling method and device and satellite communication system
CN109768825A (en) * 2019-02-26 2019-05-17 湖南省星岳天璇科技有限公司 The high rail satellite fortune control outbound control method and device of user information
CN109768825B (en) * 2019-02-26 2021-10-15 湖南省星岳天璇科技有限公司 High-orbit satellite operation control user information outbound control method and device
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CN110336756A (en) * 2019-07-05 2019-10-15 西安电子科技大学 Crossbar flow back-pressure control method with trunking function
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