CN106385387B - A kind of resource regulating method, system and the application of Information Network link - Google Patents
A kind of resource regulating method, system and the application of Information Network link Download PDFInfo
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- CN106385387B CN106385387B CN201610857713.9A CN201610857713A CN106385387B CN 106385387 B CN106385387 B CN 106385387B CN 201610857713 A CN201610857713 A CN 201610857713A CN 106385387 B CN106385387 B CN 106385387B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
Abstract
The present invention relates to resource regulating method, system and the application of a kind of Information Network link, wherein resource regulating method, comprising: S1, data center classify to data according to data type；Data center by the way of static bandwidth allocation, distributes it periodic traffic to fixed time slot；Number passes business datum by the way of Dynamic Bandwidth Allocation, and data center passes service dynamic to the number that need to be sent according to the request of node and distributes corresponding time slot；Emergency traffic data are handled using high priority, in the static bandwidth allocation stage, to the emergency traffic data of high priority using reserved time slot by the way of, in the Dynamic Bandwidth Allocation stage, to the emergency traffic data of high priority using the bandwidth allocation mode of preemptive type；S2 sends corresponding node for business datum by the time slot of distribution；S3 receives the feedback states frame that corresponding node is fed back after receiving service database.The present invention effectively improves the resource utilization of information network and improves network throughput.
Description
Technical field
The present invention relates to Information Network technical fields, and in particular to a kind of scheduling of resource of Information Network link
Method, system and application.
Background technique
Important infrastructure of the Information Network as country can service oceangoing voyage, emergency management and rescue, navigate and determine
Many fields such as position, air transportation, space flight measurement and control.But the dynamic change and communication link of Information Network network system
Frequent connection/interruption characteristic so that network is variation in the available network bandwidth of different time and service quality, and
The demand of various aircraft information transmission bandwidths is also not quite similar, for example wartime Priority Service is in space information fight, Ke Yiti
The real-time and validity that height is fought；Usually Priority Service accelerates the response speed to emergency in emergency event etc.；Except this
Except guarantee that the fairness and maximum efficiency of Internet resources, best endeavors meet the different demands of different user as far as possible.
In the optical-fiber network transmitted based on ground optical fiber, the resource scheduling scheme of network bandwidth has obtained extensive research,
The bandwidth allocation side for mainly thering is bandwidth allocation scheme, need-based bandwidth allocation scheme and the two based on static SLA to combine
Case etc..And these schemes be only in the bandwidth allocation problems for being directed to terrestrial access network, the characteristics of not accounting for Information Network,
It is not suitable for the scheduling of resource of Information Network, and does not have also for the resource dispatching strategy and relevant programme of Information Network
There is pertinent literature report.
A kind of prior art proposes mixed insertion network resource regulating method, equipment and system, due to spatial information net
The features such as dynamic of network, isomerism, scalability, the program can not effectively be scheduled Information Network resource；
Another prior art proposes a kind of network resource scheduling method based on user experience, and this method is to request to provide according to user
Source and user gradation obtain user's initial schedule data, are user's static allocation Internet resources according to user's initial schedule data,
The resource scheduling system is the characteristics of being directed to ground network system, be unable to satisfy Information Network, cannot effectively to realize space
The scheduling of resource of information network, and the resource dispatching strategy for Information Network feature is not reported in existing scheme
It arrives.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of running environment for space-air-ground integration information network
Its Internet resources is scheduled with mission requirements, realizes the information network link of high bandwidth availability ratio and network throughput
Resource regulating method and system.
The technical scheme to solve the above technical problems is that a kind of scheduling of resource side of Information Network link
Method, comprising:
S1, data center classify to data according to data type, are classified as Zhou Qixingyewu emergency traffic number
According to and number biography business；Data center by the way of static bandwidth allocation, distributes it periodic traffic to fixed time slot；Number passes
For business datum by the way of Dynamic Bandwidth Allocation, data center passes service dynamic point to the number that need to be sent according to the request of node
With corresponding time slot, and send traffic to receiving node；Emergency traffic data are handled using high priority, in static bandwidth point
With the stage, to the emergency traffic data of high priority by the way of reserved time slot, in the Dynamic Bandwidth Allocation stage, to high preferential
The emergency traffic data of grade use the bandwidth allocation mode of preemptive type；
S2 sends corresponding node for business datum by the time slot of distribution；
S3 receives the feedback states frame that corresponding node is fed back after receiving business datum.
The beneficial effects of the present invention are: network bandwidth resources are abstracted as time shaft by the present invention, it is parallel using more time shafts
Communication, can effectively improve the resource utilization of information network and improves network throughput；For the big space-time of Information Network
The requirement of high-rate information transmission and the application of high timeliness under span network architecture, dynamic network environment, should fundamentally solve
The problem that certainly existing space information network universe covering power is limited, network extension and synergistic application ability are weak.
Based on the above technical solution, the present invention can also be improved as follows.
Further, S1 is specifically included:
Data center sends the order for requiring transmission data at least one node；All nodes are according to order to number
According to the request command of center transmission business datum, type of the data center based on business datum is that business datum distribution is mutual
Independent time slot.
Further, S1 is specifically included:
Data center sends the order for initiating transmission business datum at least one node, informs that all nodes prepare
Business datum is received, the node upon receiving a command request by feedback data；
Data center distributes mutually independent time slot, institute to the business datum that need to be transmitted according to the request of all nodes
Time slot is stated to be allocated based on the type of business datum.
Further, the business datum includes periodic traffic data and emergency traffic or emergency event data；
The data center uses static bandwidth allocation mode to reserve the first time slot for each periodic traffic data, is used for
Sending cycle business datum；
The second time slot is reserved between first time slot described in every two, for sending emergency traffic or emergency event data；
Each first time slot and second time slot constitute a sub- Period Slot.
Beneficial effect using above-mentioned further scheme is, for periodic traffic Data Data center using static fixed
Bandwidth allocation mode arranges corresponding time slot properly according to the period of periodic traffic on a timeline in advance, with time driving,
Any other business cannot occupy or change the time slot of periodic traffic in network.
Further, the business datum further includes that number passes business datum；
It is that number biography business datum is pre- between two sub- Period Slots that the data center, which passes service data request according to number,
Stay third time slot；The third time slot is used for transmission number and passes business datum.
Further, second time slot is calculated according to following formula:
Second time slot=k × T+RTTmax
Wherein, k is the number of emergency traffic or emergency event data in a switching task time；T is an emergency industry
The sending time of business or emergency event data；RTTmaxFor data center to the round-trip delay of farthest node.
It further, further include reporting time slot set on the request between third time slot and subcycle time slot；
The request that the request reports time slot to pass business datum for handling number is handled and time distribution.
Further, data center reports time slot to pass business datum to the number and sorts and calculate biography according to credit value in request
The defeated time passes business datum to the number after sequence and reports time slot to send by request by credit value is descending.
Further, the assigned band of corresponding node in all historical times before the credit value is used to record current time
Difference between bandwidth needed for wide and transmission, difference is bigger, and credit value is bigger；The corresponding node refers to this number biography business number of initiation
According to node.
Beneficial effect using above-mentioned further scheme is that the distribution of bandwidth is carried out with this credit value, to guarantee one
Fairness in the section time between the burst service of different nodes.
The technical scheme to solve the above technical problems is that a kind of data center, applies above- mentioned information network
Resource regulating method,
According to data type, classify to data, is classified as Zhou Qixingyewu emergency traffic data and number passes industry
Business；Data center by the way of static bandwidth allocation, distributes it periodic traffic to fixed time slot；Number passes business datum and adopts
With the mode of Dynamic Bandwidth Allocation, data center according to the request of node to the number that need to be sent pass service dynamics distribution it is corresponding when
Gap, and send traffic to receiving node；Emergency traffic data are handled using high priority, right in the static bandwidth allocation stage
The emergency traffic data of high priority are by the way of reserved time slot, in the Dynamic Bandwidth Allocation stage, to the emergency of high priority
Business datum uses the bandwidth allocation mode of preemptive type；Corresponding node is sent by business datum by the time slot of distribution；And it connects
Receive the feedback states frame that corresponding node is fed back after receiving business datum.
The technical scheme to solve the above technical problems is that a kind of scheduling of resource system of Information Network link
System, including above-mentioned data center and at least one node.
The technical scheme to solve the above technical problems is that a kind of Information Network resource bilayer scheduling system
System applies the resource regulating method of information network as described above, the space-based control centre including being in communication with each other and ground keynote
Degree center；
The space-based control centre includes space-based perception center and space-based sensing node；
The ground control centre includes ground mster-control centre, ground perception center and ground sensing node；
Space-based perception center and ground perception center by received business datum or need to be transmitted as data center
Business datum distributes mutually independent time slot；And business datum is sent to corresponding space-based sensing node by the time slot by distributing
With ground sensing node；
The ground mster-control centre is for receiving external command control space-based perception center, space-based sensing node, ground
The work at perception center and ground sensing node.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the ground mster-control centre perceives center to space-based and space-based sensing node sends mission requirements, or
Mission requirements are sent to ground sensing node.
Further, space-based perception center is repeater satellite；The space-based sensing node includes spacecraft and near the ground
Aircraft.
Further, ground perception center is repeater satellite ground control station；The ground sensing node includes space flight
Device terrestrial user station and near space layer aircraft ground subscriber station.
RTT (Round-Trip Time): round-trip delay.It is an important performance indicator, table in a computer network
Show since transmitting terminal sends data, receives the confirmation from receiving end to transmitting terminal and (soon sent out after receiving data receiving end
Send confirmation), the time delay undergone in total.
Detailed description of the invention
Fig. 1 is a kind of resource regulating method flow chart of Information Network link of the present invention；
Fig. 2 is a kind of Information Network resource bilayer scheduling system structure diagram described in the embodiment of the present invention 2；
Fig. 3 is that repeater satellite/repeater satellite earth station sending time axis dispatches schematic diagram；
Fig. 4 is dispatching sequence's figure on more time shafts；
Fig. 5 a is the space-based time slot scheduling arrangement figure of preiodic type business；
Fig. 5 b is the ground time slot scheduling arrangement figure of periodic traffic；
Fig. 6 a is the bandwidth allocation scheme figure of burst service space-based scheduling；
Fig. 6 b is the bandwidth allocation scheme figure of burst service ground scheduling.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
As shown in Figure 1, for a kind of resource regulating method of Information Network link described in the embodiment of the present invention 1, packet
It includes:
S1, data center classify to data according to data type, are classified as Zhou Qixingyewu emergency traffic number
According to and number biography business；Data center by the way of static bandwidth allocation, distributes it periodic traffic to fixed time slot；Number passes
For business datum by the way of Dynamic Bandwidth Allocation, data center passes service dynamic point to the number that need to be sent according to the request of node
With corresponding time slot, and send traffic to receiving node；Emergency traffic data are handled using high priority, in static bandwidth point
With the stage, to the emergency traffic data of high priority by the way of reserved time slot, in the Dynamic Bandwidth Allocation stage, to high preferential
The emergency traffic data of grade use the bandwidth allocation mode of preemptive type；
S2 sends corresponding node for business datum by the time slot of distribution；
S3 receives the feedback states frame that corresponding node is fed back after receiving service database.
The business datum includes periodic traffic data and emergency traffic or emergency event data；
The data center uses static bandwidth allocation mode to reserve the first time slot for each periodic traffic data, is used for
Sending cycle business datum；
The second time slot is reserved between first time slot described in every two, for sending emergency traffic or emergency event data；
Each first time slot and second time slot constitute a sub- Period Slot.
The business datum further includes that number passes business datum；
It is that number biography business datum is pre- between two sub- Period Slots that the data center, which passes service data request according to number,
Stay third time slot；The third time slot is used for transmission number and passes business datum.
Second time slot is calculated according to following formula:
Second time slot=k × T+RTTmax
Wherein, k is the number of strong timeliness business datum in a switching task time；T is one strong timeliness business
The sending time of data；RTTmaxFor data center to the round-trip delay of farthest node.
It further include reporting time slot set on the request between third time slot and subcycle time slot；
The request that the request reports time slot to pass business datum for handling number is handled and time distribution.
Data center reports time slot to pass business datum to the number and sorts and calculate transmission time according to credit value in request,
Pass business datum to the number after sequence reports time slot to send by credit value is descending by request.
Corresponding node assigned bandwidth and biography in all historical times before the credit value is used to record current time
Difference between bandwidth needed for defeated, difference is bigger, and credit value is bigger；The corresponding node, which refers to, initiates the section that this number passes business datum
Point.
A kind of resource regulating method of Information Network link described in the embodiment of the present invention 2, on the basis of embodiment 1
On, S1 is specifically included:
Data center sends the order for requiring transmission data at least one node；All nodes are according to order to number
Service data request is transmitted according to center, request and type of the data center based on business datum are that business datum distribution is mutual
Independent time slot.
A kind of resource regulating method of Information Network link described in the embodiment of the present invention 3, on the basis of embodiment 1
On, S1 is specifically included:
Data center classifies to data according to data type, be classified as Zhou Qixingyewu emergency traffic data and
Number biography business；Data center by the way of static bandwidth allocation, distributes it periodic traffic to fixed time slot；Number biography business
For data by the way of Dynamic Bandwidth Allocation, data center passes service dynamic distribution phase to the number that need to be sent according to the request of node
The time slot answered, and send traffic to receiving node；Emergency traffic data are handled using high priority, in static bandwidth allocation rank
Section, to the emergency traffic data of high priority using time slot is reserved by the way of, in the Dynamic Bandwidth Allocation stage, to high priority
Emergency traffic data use the bandwidth allocation mode of preemptive type；
When data center is mutually independent to the business datum distribution that need to be transmitted according to the preparation state of all nodes
Gap, the time slot are allocated based on the type of business datum.
A kind of data center of the present invention applies the resource regulating method of above- mentioned information network, according to data class
Type classifies to data, is classified as Zhou Qixingyewu emergency traffic data and number biography business；Data center will be periodical
Business distributes it fixed time slot by the way of static bandwidth allocation；Number passes the side that business datum uses Dynamic Bandwidth Allocation
Formula, data center passes service dynamic to the number that need to be sent according to the request of node and distributes corresponding time slot, and sends traffic to
Receiving node；Emergency traffic data are handled using high priority, in the static bandwidth allocation stage, to the emergency traffic of high priority
Data are by the way of reserved time slot, in the Dynamic Bandwidth Allocation stage, use preemptive type to the emergency traffic data of high priority
Bandwidth allocation mode；Corresponding node is sent by business datum by the time slot of distribution；And it receives corresponding node and is receiving
The feedback states frame fed back after service database.
A kind of resource scheduling system of Information Network link of the present invention, including above-mentioned data center and at least
One node.
In the Information Network system based on intelligent perception, multi-service need to need to carry out when shared resource business it
Between scheduling of resource, therefore the bandwidth resources of Information Network are abstracted are as follows: the transmission of repeater satellite/repeater satellite earth station
Time shaft, repeater satellite/repeater satellite earth station receiving time axis and all spacecraft/aircraft and its earth station connect
Receive time shaft.When multiple nodes send business to the same node, provided on the receiving time axis of destination node
Source scheduling, i.e., carry out on repeater satellite/repeater satellite earth station or spacecraft/aircraft and its receiving time axis of earth station
Scheduling.
As shown in Fig. 2, dispatching system for a kind of Information Network resource bilayer described in the embodiment of the present invention 2, answer
With a kind of resource regulating method of information network link as described above, which is characterized in that during the space-based including being in communication with each other is dispatched
The heart and ground control centre；
The space-based control centre includes space-based perception center and space-based sensing node；
The ground control centre includes ground mster-control centre, ground perception center and ground sensing node；
Space-based perception center and ground perception center by received business datum or need to be transmitted as data center
Business datum distributes it mutually independent time slot according to service request；And business datum is sent to pair by the time slot by distributing
The space-based sensing node and ground sensing node answered；
The ground mster-control centre is for receiving external command control space-based perception center, space-based sensing node, ground
The work at perception center and ground sensing node.
Scheduling relationship between more time shafts:
Fig. 3 is that repeater satellite/repeater satellite earth station sending time axis dispatches schematic diagram；Fig. 4 is the tune on more time shafts
Degree sequence.
When scheduling, first dispatching of relays satellite/repeater satellite earth station sending time axis has arranged repeater satellite/relaying to defend
After the sending time axis of star earth station, the receiving time axis of corresponding purpose spacecraft/aircraft and its ground tiny node is just
Through occupied a part, on each spacecraft/aircraft and its ground station reception time shaft, when first removing this part and having occupied
After gap, then by remaining time slot allocation to the business from other spacecraft/aircraft and its ground tiny node.A node connects at this time
It is mutually indepedent for receiving the scheduling of the remaining time slots on time shaft.
In Fig. 3,4, the burst service scheduling on repeater satellite/repeater satellite earth station sending time axis is first carried out, it is complete
Cheng Houzai in spacecraft/aircraft and its earth station 1, spacecraft/aircraft and its earth station 2 ... spacecraft/aircraft and
Respective business is independently arranged on the receiving time axis of its earth station n.But repeater satellite/repeater satellite earth station sends the prominent of axis
Sending service switching time slot can occupy the time slot on spacecraft/aircraft and its ground station reception axis.
Scheduling mechanism based on command response formula:
Scheduling mechanism uses the scheduling mode of command response formula, concentrates within a DBA period and arranges start time (relaying
Satellite/repeater satellite earth station sends the command frame moment) and duration.The industry sent for spacecraft/aircraft and its earth station
Business, repeater satellite/repeater satellite earth station transmission command frame moment (are met an urgent need with time driving to execute according to scheduling calculated result
Except the seizing of business or emergency event data), for the business that repeater satellite/repeater satellite earth station sends, repeater satellite/
Repeater satellite earth station is sent order moment duration and is driven with sequence according to scheduling calculated result to execute.In each DBA period
Calculated result are as follows: in this subcycle all business " (repeater satellite/repeater satellite earth station sends life at the beginning of execution
Enable the frame moment) " and " duration ".
Since RTT is unknown and emergency traffic or emergency event data, command frame/status frames insertion etc., 2 business it
Between or the period end DBA be added protection time slot.
SBA+DBA is combined, request authentication type, centralization, priority preemptive type DBA are dispatched:
For periodic traffic using the static fixed-bandwidth method of salary distribution.According to the period of periodic traffic, in advance when
Between arrange corresponding time slot properly on axis, with time driving, any other business cannot occupy or change periodic traffic in network
Time slot.
Dynamic Bandwidth Allocation Mechanism based on " request-authorization " is used for several biography business, within a DBA period, in
Concentrating after satellite/repeater satellite earth station arranges each node to report bandwidth request, after the bandwidth request for receiving all nodes,
Bandwidth allocation is carried out according to certain algorithm.
For emergency traffic or emergency event data, dispatched using priority preemptive type DBA, once there is emergency traffic or answers
Anxious event data reaches repeater satellite/repeater satellite earth station, will be inserted into present repeater satellite/repeater satellite earth station
Sent immediately in the number biography business sent (but do not interrupt the transmission of traffic frame, i.e., after having sent present frame, that is, start
It sends emergency traffic or emergency event data service is further continued for sending after emergency traffic or emergency event data are sent completely
The exchange being interrupted before).When emergency traffic or the business of emergency event data reach, repeater satellite/repeater satellite earth station is just
In sending cycle business, then after waiting this periodic traffic to be sent, emergency traffic or emergency event number are sent immediately
According to.
Since emergency traffic or emergency event data can seize time slot, the occupancy time slot of periodic traffic, burst service
It is possible that increasing, time slot is seized to accommodate this part by increasing the protection interval between 2 exchanges.
The period in DBA period divides:
One DBA period is divided into the three classes period: periodic traffic period, request collect and DBA calculate the period,
Number passes business hours section.
It is initial in scheduling mechanism operation, first distribute fixed time slot to each periodic traffic, each periodic traffic
Starting Executing Time point (repeater satellite/repeater satellite earth station sends the command frame moment) is fixed with duration, and other business cannot
It seizes periodic traffic and executes time, time driving, strict guarantee periodicity.
After one DBA period starts, all spacecraft/flights of repeater satellite/repeater satellite earth station broadcasting command first
Device and its earth station report the status frames for carrying bandwidth request, are collected into the transmission of all spacecraft/aircraft and its earth station
Bandwidth request (indicate and send destination) and repeater satellite/repeater satellite earth station transmission bandwidth request (indicate and send destination)
Afterwards, spacecraft/aircraft and its earth station report bandwidth request, carry out this period according to DBA algorithm on each time shaft
The bandwidth allocation that interior number passes business hours section calculates.Allocation order will also meet first distribution repeater satellite/relaying above-mentioned and defend
Star earth station sends the business of axis, reallocation repeater satellite/repeater satellite earth station and spacecraft/aircraft and its earth station
The rule of receiving time axis.
DBA algorithm based on credit value sequence distribution according to need:
Number biography business is independently dispatched on each time shaft.First dispatching of relays satellite/repeater satellite earth station sending time
Number biography business on axis, then while the and mutually independent number dispatched on spacecraft/aircraft and its ground station reception time shaft
Biography business.
On each time shaft, each node calculates the number biography business of each connection of network by the ratio of the load of node
Guarantee bandwidth, guarantee that bandwidth updates the credit value of each connection of network for each DBA period.
Number passes in traffic assignments, and credit value, the company using node i as source, for the purpose of node j is arranged in each connection of network
The credit value connect is Cij, the node is assigned in all historical times before credit value records current time bandwidth and guarantee band
Gap between width, CijThe bandwidth that the connection is distributed in showing this for the previous period more greatly is more less than guarantee bandwidth, is believed with this
The distribution of bandwidth is carried out, with value to guarantee the fairness between the burst service of different nodes whithin a period of time.
Periodic traffic scheduling: periodic traffic refers to a kind of business periodically generated in a network, due to such industry
This periodic feature (needing stringent guarantee periodical) of business, so using periodic static bandwidth allocation mode.?
When carrying out the scheduling of Internet resources, the scheduling of periodic traffic is carried out first, and fixed reserved output time slot is used for periodic traffic
Scheduling, other type services can not occupy the fixed time slot of this section.I.e. in the beginning of network DBA scheduling, each spacecraft/aircraft
And its periodic traffic of ground tiny node does not need to carry out reporting for bandwidth request, repeater satellite/repeater satellite earth station section
Point carries out bandwidth to the spacecraft/aircraft and its ground tiny node for needing to carry out periodic traffic demand according to known demand
Fixed allocation, with time driving, fixed time to spacecraft/aircraft and its command frame of earth station's sending cycle business,
So that service period executes.
Fig. 5 a is the space-based time slot scheduling arrangement figure of preiodic type business；Fig. 5 b is that the ground time slot scheduling of periodic traffic is pacified
Row's figure:
During periodic traffic, scheduling mechanism no longer arranges concurrently to execute business:
It is the strict guarantee period although a cycle business only takes up the reception of node a transmission and another node
The periodicity of property business, only one periodic traffic is executing in synchronization network, without other business, a cycle
Business can occupy all time shafts.
Emergency traffic or emergency event data service insertion:
Emergency traffic or emergency event data service basic principle are priority preemption schedulings, an emergency traffic or are answered
After anxious event data reaches repeater satellite/repeater satellite earth station, can preferentially it be sent.But to periodic traffic, emergency traffic
Or emergency event data service cannot interrupt periodic traffic, can be inserted between 2 periodic traffics, to guarantee periodical industry
The strict periodicity of business, requires between arbitrary neighborhood periodic traffic 1 time strong timeliness business is added and sends reserving for duration
Time.
RTT protects time slot: in a DBA subcycle, according to farthest spacecraft/aircraft and its ground station reception
RTT reserves the scheduling of each periodic traffic of fixed Slot format, i.e., to reserve between the adjacent periodic traffic of any two
One farthest RTT protects time slot.
The sub-data transmission of repeater satellite/repeater satellite earth station-spacecraft/aircraft and its earth station's periodic traffic
For three steps:
Step 1: repeater satellite/repeater satellite earth station sends to purpose spacecraft/aircraft and its earth station initiates week
The command frame of phase property business transmission；
Step 2: repeater satellite/repeater satellite earth station and then command frame it is rear to purpose spacecraft/aircraft and
Its earth station sends the data frame containing periodic traffic,
Step 3: after spacecraft/aircraft and its ground station reception to order and data to repeater satellite/repeater satellite
Face station returns to the status frames for having this node current information.
If having emergency traffic or emergency event number in the time slot that repeater satellite/repeater satellite earth station sends command frame
According to the insertion of business, needs first to have sent the command frame with data at this time and then send emergency traffic or emergency event data
The command frame of business.If having emergency traffic or emergency in the time slot that spacecraft/aircraft and its earth station return to status frames
The insertion of event data business, what emergency traffic or emergency event data service occupied at this time is repeater satellite/repeater satellite
The transmission axis at face station, and it is repeater satellite/repeater satellite that the return of spacecraft/aircraft and its earth station's status frames, which occupies,
The receiving axis at face station, has no effect between the two.
Support repeater satellite/repeater satellite earth station broadcast periodicity business:
Status frames are returned due to not needing spacecraft/aircraft and its earth station when broadcast periodicity business, thus are wide
It is smaller than the RTT protection time slot that single cycle business is reserved to broadcast business, reserves time slot still according to former scheme and is centainly able to satisfy
In addition to this periodic traffic of broadcast does not influence the scheduling of periodic traffic.
Number passes traffic scheduling:
As shown in fig. 6, Dynamic Bandwidth Allocation mode of the number biography business using " request-authorization ".
Fig. 6 a is the bandwidth allocation scheme figure of number biography business space-based scheduling；Fig. 6 b is the bandwidth point of number biography business ground scheduling
With conceptual scheme.
The order of presentation of more time shafts:
DBA in each DBA period calculates the task arrangement that can be responsible for arranging properly each time shaft in DBA cycle time,
Order of presentation is as follows:
1) number on repeater satellite/repeater satellite earth station sending direction and receiving direction time shaft is arranged to pass industry first
Business, repeater satellite/repeater satellite earth station sends and receives the bandwidth allocation on time shaft are mutually indepedent.
2) spacecraft/aircraft and its earth station 1, spacecraft/aircraft and its ground are then arranged simultaneously and independently of each other
Number biography business on face station 2 ... spacecraft/aircraft and its earth station n receiving direction time shaft.
All spacecraft/aircraft and its earth station other than removing repeater satellite/repeater satellite earth station are in each DBA
The limitation of request is reported in period are as follows: only report the request for going to a destination node within a DBA cycle time, i.e., only on
Report the request of a connection.On repeater satellite/repeater satellite earth station sending time axis, relaying is reached according to different linking and is defended
Star/repeater satellite earth station time sequencing arrives first the principle first sent out and carries out bandwidth allocation, but repeater satellite/repeater satellite
The task of face station sending direction arrangement will occupy the receiving time axis of other spacecraft/aircraft and its earth station (in such as
After satellite/repeater satellite earth station issue spacecraft/aircraft and its earth station 1 task can in spacecraft/aircraft and its
Partial time period is accounted on 1 receiving time axis of earth station), thus arranged repeater satellite/downlink side, repeater satellite earth station properly
To the receiving time axis of other spacecraft/aircraft and its earth station removes repeater satellite/repeater satellite earth station downlink at this
Be independent of each other independently of each other outside the time that spacecraft/aircraft and its ground station reception axis occupy, at this time each spacecraft/
Aircraft and its ground station reception axis can independently carry out bandwidth allocation.Same repeater satellite/repeater satellite ground station reception axis
It is independent with the burst service scheduling on other times axis.
Therefore, for this project according to the difference of its type of service, the network resource scheduling scheme of use is the dynamic of more time shafts
The command response formula scheme that state bandwidth allocation and static bandwidth allocation (DBA+SBA) are combined.The Netowrk tape of its space-based control centre
The summary that wide resource can be abstracted are as follows: the sending time axis and receiving time axis of repeater satellite and the reception at all ground centers
Time shaft, the summary that the network bandwidth resources of ground control centre can be abstracted are as follows: the sending time axis of repeater satellite earth station,
The receiving time axis of repeater satellite and the sending time axis of repeater satellite.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of resource regulating method of Information Network link characterized by comprising
S1, data center classify to data according to data type, be classified as Zhou Qixingyewu emergency traffic data and
Number biography business；Data center by the way of static bandwidth allocation, distributes it periodic traffic to fixed time slot；Number biography business
For data by the way of Dynamic Bandwidth Allocation, data center passes service dynamic distribution phase to the number that need to be sent according to the request of node
The time slot answered, and send traffic to receiving node；Emergency traffic data are handled using high priority, in static bandwidth allocation rank
Section, to the emergency traffic data of high priority using time slot is reserved by the way of, in the Dynamic Bandwidth Allocation stage, to high priority
Emergency traffic data use the bandwidth allocation mode of preemptive type；
S2 sends corresponding node for business datum by the time slot of distribution；
S3 receives the feedback states frame that corresponding node is fed back after receiving service database；
The business datum includes that periodic traffic data, emergency traffic or emergency event data sum number pass business datum；
The data center uses static bandwidth allocation mode to reserve the first time slot for each periodic traffic data, for sending
Periodic traffic data；
The second time slot is reserved between first time slot described in every two, for sending emergency traffic or emergency event data；
Each first time slot and second time slot constitute a sub- Period Slot；
It is that number passes business datum and reserves the between two sub- Period Slots that the data center, which passes service data request according to number,
Three time slots；The third time slot is used for transmission number and passes business datum.
2. a kind of resource regulating method of Information Network link according to claim 1, which is characterized in that S1 is specific
Include:
Data center sends the order for requiring transmission data at least one node；All nodes are according to order into data
The heart transmits service data request, and type of the data center based on business datum is that service data request distribution is mutually independent
Time slot.
3. a kind of resource regulating method of Information Network link according to claim 1, which is characterized in that described second
Time slot is calculated according to following formula:
Second time slot=k × T+RTTmax
Wherein, k is the number of emergency traffic or emergency event data in a switching task time；T be an emergency traffic or
The sending time of emergency event data；RTTmaxFor data center to the round-trip delay of farthest node.
4. a kind of resource regulating method of Information Network link according to claim 3, which is characterized in that further include setting
Request between third time slot and subcycle time slot reports time slot；
The request that the request reports time slot to pass business datum for handling number is handled and time distribution.
5. a kind of resource regulating method of Information Network link according to claim 4, which is characterized in that data center
It reports time slot to pass business datum to the number in request to sort and calculate transmission time according to credit value, pass industry to the number after sequence
Business data report time slot to be sent by credit value is descending by request.
6. a kind of resource regulating method of Information Network link according to claim 5, which is characterized in that the credit
Between bandwidth needed for bandwidth and transmission that value is assigned for corresponding node in historical times all before recording current time
Difference, difference is bigger, and credit value is bigger；The corresponding node, which refers to, initiates the node that this number passes business datum.
7. a kind of data center, which is characterized in that it applies a kind of described in any item spatial information nets of the claims 1-6
The resource regulating method of network link,
For distributing mutually independent time slot to the business datum that need to be sent；It is sent business datum to pair by the time slot of distribution
Answer node；Receive the feedback states frame that corresponding node is fed back after receiving business datum.
8. a kind of resource scheduling system of Information Network link, which is characterized in that including data as claimed in claim 7
Center and at least one node.
9. a kind of resource scheduling system of Information Network link, a kind of application spatial information as described in claim 1-6
The resource regulating method of network link, which is characterized in that including the space-based control centre and ground control centre being in communication with each other；
The space-based control centre includes space-based perception center and space-based sensing node；
The ground control centre includes ground mster-control centre, ground perception center and ground sensing node；
Space-based perception center and ground perception center are as data center by received business datum or the business that need to be transmitted
Data distribute it mutually independent time slot according to service request；And the time slot by distributing business datum is sent to it is corresponding
Space-based sensing node and ground sensing node；
The ground mster-control centre is for receiving external command control space-based perception center, space-based sensing node, ground perception
The work at center and ground sensing node.
10. a kind of resource scheduling system of Information Network link as claimed in claim 9, which is characterized in that describedly
Face mster-control centre perceives center to space-based and space-based sensing node sends mission requirements, or sends task to ground sensing node
Demand.
11. a kind of resource scheduling system of Information Network link as claimed in claim 10, which is characterized in that the day
It is repeater satellite that base, which perceives center,；The space-based sensing node includes spacecraft and aircraft near the ground.
12. such as a kind of described in any item resource scheduling systems of Information Network link of claim 9-11, feature exists
In ground perception center is repeater satellite ground control station；The ground sensing node includes spacecraft ground subscriber station
With near space layer aircraft ground subscriber station.
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| CN106851749B (en) * | 2017-04-06 | 2020-04-07 | 上海航天测控通信研究所 | Relay satellite system resource scheduling method based on resource reservation |
| CN108199763B (en) * | 2017-12-29 | 2019-01-22 | 清华大学 | Repeater satellite method for scheduling task and system |
| CN108599834B (en) * | 2018-03-07 | 2020-05-22 | 中国地质大学（武汉） | Method and system for analyzing utilization rate of satellite communication network link |
| CN110601999B (en) * | 2018-06-12 | 2022-03-04 | 华为技术有限公司 | Method and device for reserving resources |
| CN109408228B (en) * | 2018-09-30 | 2019-10-15 | 陕西师范大学 | Intelligent perception method for allocating tasks based on allocation of budget |
| CN109617835B (en) * | 2018-12-25 | 2022-02-18 | 中国电子科技集团公司第五十四研究所 | Multi-priority time slot allocation method suitable for centralized TDMA network |
| CN113037529B (en) * | 2019-12-25 | 2022-06-17 | 北京东土科技股份有限公司 | Reserved bandwidth allocation method, device, equipment and storage medium |
| CN111711538B (en) * | 2020-06-08 | 2021-11-23 | 中国电力科学研究院有限公司 | Power network planning method and system based on machine learning classification algorithm |
| CN111682892B (en) * | 2020-06-08 | 2022-07-29 | 凯睿星通信息科技(南京)股份有限公司 | Automatic link establishment method based on service perception of intelligent gateway in satellite communication |
| CN111740922B (en) * | 2020-08-21 | 2021-02-12 | 浙江巨化信息技术有限公司 | Data transmission method, device, electronic equipment and medium |
| CN112039804B (en) * | 2020-08-31 | 2022-04-22 | 中国科学院空间应用工程与技术中心 | Method and system for dynamically allocating burst service bandwidth based on weight ratio |
| CN113114586B (en) * | 2021-03-18 | 2022-07-29 | 西北大学 | Bandwidth scheduling method and system based on single-time-slot dynamic priority |
| CN113131992B (en) * | 2021-04-14 | 2021-10-29 | 赵辉 | Space internet satellite ground station space-ground resource allocation method and system |
| CN113938176A (en) * | 2021-08-26 | 2022-01-14 | 西安空间无线电技术研究所 | Low-delay service space-based computing method |
| CN114598648B (en) * | 2022-03-08 | 2023-07-14 | 中国人民解放军63921部队 | Spacecraft uplink network flow control device and method based on reverse constraint transfer |
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| WO2013139037A1 (en) * | 2012-03-23 | 2013-09-26 | 华为技术有限公司 | Method and device for scheduling resources |
| KR101971464B1 (en) * | 2012-06-29 | 2019-04-23 | 삼성전자주식회사 | Apparatas and method for selecting device to device communication mode according to signal interference |
| CN103068060B (en) * | 2013-01-24 | 2016-01-27 | 福建星网锐捷网络有限公司 | Mixed insertion network resource regulating method, equipment and system |
| CN104427625B (en) * | 2013-08-28 | 2018-06-26 | 中国移动通信集团湖北有限公司 | A kind of network resource scheduling method and system based on user experience |
| CN105681092B (en) * | 2016-01-27 | 2018-11-06 | 重庆邮电大学 | Wavelength slot allocation method based on service priority in a kind of hybrid multiplex PON |
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