CN106533536A - IP addressing method and apparatus of polar-orbit low-orbit satellite network - Google Patents
IP addressing method and apparatus of polar-orbit low-orbit satellite network Download PDFInfo
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- CN106533536A CN106533536A CN201610979071.XA CN201610979071A CN106533536A CN 106533536 A CN106533536 A CN 106533536A CN 201610979071 A CN201610979071 A CN 201610979071A CN 106533536 A CN106533536 A CN 106533536A
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- 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
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18569—Arrangements for system physical machines management, i.e. for construction operations control, administration, maintenance
- H04B7/18571—Arrangements for system physical machines management, i.e. for construction operations control, administration, maintenance for satellites; for fixed or mobile stations
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- 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
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18569—Arrangements for system physical machines management, i.e. for construction operations control, administration, maintenance
- H04B7/18573—Arrangements for system physical machines management, i.e. for construction operations control, administration, maintenance for operations control, administration or maintenance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
Abstract
The embodiment of the invention provides an IP addressing method and apparatus of a polar-orbit low-orbit satellite network. The IP addressing method provided by the embodiment of the invention comprises the following steps: dividing an earth surface into a plurality of geographical zones according to a distribution rule of satellite nodes, allocating fixed IP address segments to the geographical zones, allocating IP addresses to ground ports of the satellite nodes according to the geographical zones corresponding to the satellite nodes, and allocating IP addresses to mobile users according to the geographical zones of the mobile users. Moreover, only when the mobile users span the geographical zones, the IP addresses of the mobile users are updated. Since the moving speeds of the mobile users relative to the geographical zones are much smaller than the moving speeds of the mobile users relative to the satellite nodes, the frequency of the mobile users to span the geographical zones is much smaller than the frequency of the mobile users to convert the coverage of the satellite nodes, therefore by adoption of the IP addressing method and apparatus of the polar-orbit low-orbit satellite network provided by the embodiment of the invention, the frequency of updating the IP addresses of the mobile users is greatly reduced, and thus the operating efficiency of the satellite network is improved.
Description
Technical field
The present embodiments relate to aerospace information field, more particularly to a kind of polar orbit low-orbit satellite network IP addressings
Method and device.
Background technology
Low-orbit satellite network is the global integration communication system with low-orbit satellite node as core.Polar orbit is low
Orbiter network is with polar orbit low-orbit satellite node as core, due to global seamless coverage, disposing motor-driven spirit
The advantages of living, polar orbit low-orbit satellite network not only has special status in military and space science and technology, and extensively
Be applied to navigate, position, weather forecast, the civilian data communication field such as live telecast, with very huge mobile subscriber group
Body.
Traditional low-orbit satellite network IP addressing methods are that port sets fixed IP ground over the ground for each satellite node
Location.When the mobile subscriber on ground is proceeded to the overlay area of another new satellite node by a upper satellite node overlay area
When, need to update the IP address of mobile subscriber, so that the IP address of the new IP address of the mobile subscriber and new satellite node
Meet address aggregation relation, so that mobile subscriber can access new satellite node.
Existing polar orbit low-orbit satellite network is also adopted by above-mentioned traditional low-orbit satellite network IP addressing methods, by
The movement rate of the mobile subscriber of satellite node is significantly larger than accessed in the movement rate of low-orbit satellite node, movement can be caused
User's frequent transitions satellite coverage area, so as to cause the frequent updating of the IP address of mobile subscriber.With the low rail of polar orbit
The increase of ground based mobile subscriber quantity in road satellite network, the renewal of the IP address of mobile subscriber in network more frequently can be led
Cause network operation efficiency low.
The content of the invention
The embodiment of the present invention provides a kind of polar orbit low-orbit satellite network IP addressing methods and device, to solve because moving
Family frequent transitions satellite coverage area is employed, causes that the frequent updating of the IP address of mobile subscriber, network operation efficiency are low to ask
Topic.
The one side of the embodiment of the present invention is to provide a kind of polar orbit low-orbit satellite network IP addressing methods, bag
Include：
According to the regularity of distribution of polar orbit low-orbit satellite network Satellite node, multiple geography of earth surface are determined
Subregion, the polar orbit low-orbit satellite network Satellite node have the following regularity of distribution：The polar orbit low orbit
Satellite network includes multiple radius identical polar orbits, has multiple satellite nodes on each described polar orbit, two neighboring
Angle all same between the plane of the polar orbit place, the two neighboring described satellite node on each described polar orbit
Between latitude difference all same；
Obtain complete IP address section to be allocated；
According to the complete IP address section, the IP address section of each geographical zone in the plurality of geographical zone is determined；
According to the corresponding geographical zone of each satellite node in the plurality of satellite node and described each geography
The IP address section of subregion, determines the port IP address over the ground of each satellite node；
The geographical zone being located according to mobile subscriber and the IP address section of each geographical zone, it is determined that described
The IP address of mobile subscriber.
The other side of the embodiment of the present invention is to provide a kind of polar orbit low-orbit satellite network IP addressings device, bag
Include：
Division module, for the regularity of distribution according to polar orbit low-orbit satellite network Satellite node, determines the earth
Multiple geographical zones on surface, the polar orbit low-orbit satellite network Satellite node have the following regularity of distribution：It is described
Polar orbit low-orbit satellite network includes multiple radius identical polar orbits, has multiple satellites on each described polar orbit
Node, the angle all same between two neighboring polar orbit place plane, adjacent two on each described polar orbit
Latitude difference all same between the individual satellite node；
Acquisition module, for obtaining complete IP address section to be allocated；
First determining module, for according to the complete IP address section, determining that each is geographical in the plurality of geographical zone
The IP address section of subregion；
Second determining module, for according to the corresponding geographical zone of each satellite node in the plurality of satellite node
And the IP address section of each geographical zone, determine the port IP address over the ground of each satellite node；
3rd determining module, for the geographical zone that is located according to mobile subscriber and each geographical zone
IP address section, determines the IP address of the mobile subscriber.
Polar orbit low-orbit satellite network IP addressing methods provided in an embodiment of the present invention and device, by according to satellite
Earth surface is divided into multiple geographical zones by Node distribution rule, is the fixed IP address of each geographical zone distribution
Section, according to the port assignment IP address over the ground that the corresponding geographical zone of each satellite node is each satellite node, according to
The geographical zone that mobile subscriber is located is that mobile subscriber distributes IP address so that only when mobile subscriber crosses over geographical zone,
The IP address of mobile subscriber is updated, as the rate travel of the relative geographical zone of mobile subscriber is far smaller than that mobile subscriber is relative
The rate travel of satellite node, mobile subscriber are far smaller than that mobile subscriber's conversion satellite node is covered across the frequency of geographical zone
The frequency in model area, therefore polar orbit low-orbit satellite network IP addressing methods provided in an embodiment of the present invention and device drop significantly
The frequency that low mobile subscriber's IP address updates, so as to improve the operational efficiency of low-orbit satellite network.
Description of the drawings
Fig. 1 is the polar orbit low-orbit satellite network IP addressing method flow charts that the embodiment of the present invention one is provided；
Fig. 2 is that the n that the embodiment of the present invention two is provided arranges schematic diagram for the geographical zone of even number；
Fig. 3 is that the n that the embodiment of the present invention two is provided arranges schematic diagram for the geographical zone of odd number；
Fig. 4 passes through the geographical zone schematic diagram of the arctic point when being odd number for the n that the embodiment of the present invention two is provided；
Fig. 5 is the polar orbit low-orbit satellite network IP addressing method flow charts that the embodiment of the present invention three is provided；
Fig. 6 is the polar orbit low-orbit satellite network IP addressing structure drawing of device that the embodiment of the present invention four is provided；
Fig. 7 is the polar orbit low-orbit satellite network IP addressing structure drawing of device that the embodiment of the present invention five is provided.
Specific embodiment
Polar orbit refers to orbit plane with the orbit of artificial earth satellite that earth equatorial plane angle is 90 degree.Polar orbit
Satellite node (i.e. artificial satellite) run when can reach polar regions overhead, the satellite node model covering the whole world of polar orbit
Enclose.In actual applications, the meteorological satellite for being observed in the world and applying, aeronautical satellite, the earth is much needed to provide
Source satellite etc. all adopts polar orbit.It is distance ground that satellite node in common low-orbit satellite network is often referred to orbit altitude
The satellite node of face 1000km-5000km.
Embodiment one
Fig. 1 is polar orbit low-orbit satellite network IP addressing method flow charts provided in an embodiment of the present invention.The present invention
Embodiment is for because of mobile subscriber's frequent transitions satellite coverage area, causing frequent updating, the network of the IP address of mobile subscriber
The low problem of operational efficiency, there is provided polar orbit low-orbit satellite network IP addressing methods, the method are comprised the following steps that：
Step S101, according to the regularity of distribution of polar orbit low-orbit satellite network Satellite node, determine earth surface
Multiple geographical zones.
Wherein, polar orbit low-orbit satellite network Satellite node has the following regularity of distribution：Polar orbit low orbit
Satellite network includes multiple radius identical polar orbits, has multiple satellite nodes, two neighboring polar region on each polar orbit
Angle all same between the plane of track place, the latitude difference between two neighboring satellite node on each polar orbit are equal
It is identical.
In the embodiment of the present invention and follow-up other embodiment, described " satellite network " refers both to included satellite
Node has the polar orbit low-orbit satellite network of the above-mentioned regularity of distribution.
In the present embodiment, Circular measure is adopted with regard to the tolerance at angle.Polar orbit low-orbit satellite network Satellite section
The regularity of distribution of point is specific as follows：
(1) polar orbit low-orbit satellite network has m × n satellite node, and wherein m is polar orbit quantity, and n is each
Satellite node quantity in polar orbit.(2) each polar orbit is the circle with the earth's core as the center of circle, each polar orbit
Angle between radius all same, and two polar orbit place planes of arbitrary neighborhood is(3) each polar orbit
In, the latitude difference between arbitrary neighborhood satellite isNamely the satellite node in each polar orbit is uniformly distributed.
Step S102, acquisition complete IP address section to be allocated.
Wherein, complete IP address section to be allocated is previously given IP address section, for distributing to each geographical zone,
And disclosure satisfy that the demand of the IP address quantity of polar orbit low-orbit satellite network.
Preferably, be the IP address quantity for meeting polar orbit low-orbit satellite network demand, can be according to satellite network
The total IP demands of network, determine complete IP address section to be allocated.
In the present embodiment, the IP address section for each geographical zone distribution in subsequent step is all contained in the complete IP
In address field.
Step S103, according to complete IP address section, determine the IP address section of each geographical zone in multiple geographical zones.
Specifically, complete IP address section is divided into multiple IP ground by the demand according to IP address in each geographical zone
Location section.Wherein, the demand of IP address in the quantity of the middle IP address of the multiple IP address sections being divided into and each geographical zone
It is corresponding, each IP address section is distributed to into corresponding geographical zone.
Step S104, according to the corresponding geographical zone of each satellite node and each geographical zone in multiple satellite nodes
IP address section, determine the port IP address over the ground of each satellite node.
In the present embodiment, each satellite node only corresponds to unique geographical zone in synchronization.If at a time
The current location respective coordinates of satellite node be located at a certain geographical zone in the range of, then the moment geographical zone be with
The corresponding geographical zone of the satellite node.Can obtain by the current location information of technical staff's monitor in real time satellite node and in real time
The coordinate of satellite node is taken, when the coordinate of satellite node is located at the border of geographical zone, or when being close to the border of geographical zone,
Then satellite node correspondence geographical zone will change, and redistribute the port IP address over the ground of the satellite node.
Specifically, when the corresponding geographical zone of satellite node changes, current corresponding geographical point according to satellite node
The IP address section in area, distributes its port IP address over the ground for the satellite node from the IP address section.
Preferably, by minimum in assignable IP address in the IP address section of satellite node current corresponding geographical zone
IP address is assigned as the port IP address over the ground of the satellite node.
Wherein, the distributed IP address in IP address section removes the IP ground of minimum IP address and maximum in referring to IP address section
Any IP address outside location.
It should be readily apparent to one skilled in the art that the IP address of IP address minimum in IP address section and maximum is used as reservation IP
Address, does not do and distributes.
The IP address section of step S105, the geographical zone being located according to mobile subscriber and each geographical zone, it is determined that moving
Employ the IP address at family.
In this step, when mobile subscriber accesses satellite network, or mobile subscriber preserves connection status with satellite network
During lower conversion geographical zone, need to distribute new IP address for the mobile subscriber.Therefore being currently located according to mobile subscriber
Geographical zone, from the IP address section which is currently located geographical zone, is that the mobile subscriber distributes IP address.Preferably, can be with
The distributed IP address for being currently located minimum in the IP address section of geographical zone is distributed to into the mobile subscriber.
Further, the IP address of not mobile subscriber's distribution when mobile subscriber disconnects satellite network, is withdrawn, withdrawal
IP address becomes can distribute IP address.
In the present embodiment, the position being located according to mobile subscriber, determines the geographical zone that each mobile subscriber is located, place
One belonged in the two geographical zones can be specified in the user of two geographical zone intersections.
Polar orbit low-orbit satellite network IP addressing methods provided in an embodiment of the present invention, by according to satellite node point
Earth surface is divided into multiple geographical zones by cloth rule, is the fixed IP address section of each geographical zone distribution, according to respectively defending
The corresponding geographical zone of star node is the port assignment IP address over the ground of each satellite node, according to the geography point that mobile subscriber is located
Area is that mobile subscriber distributes IP address so that only when mobile subscriber crosses over geographical zone, just updates the IP ground of mobile subscriber
Location, as the rate travel of the relative geographical zone of mobile subscriber is far smaller than the rate travel of mobile subscriber's relative satellite node,
Mobile subscriber covers the frequency in model area, therefore this across frequency far smaller than mobile subscriber's conversion satellite node of geographical zone
The polar orbit low-orbit satellite network IP addressing methods and device that bright embodiment is provided greatly reduces mobile subscriber's IP address
The frequency of renewal, so as to improve the operational efficiency of low-orbit satellite network.
Embodiment two
On the basis of above-described embodiment one, in the embodiment of the present invention two, multiple geography that earth surface is divided into
Subregion has the characteristics that：The number of geographical zone is equal with the number of low-orbit satellite network Satellite node；Geographical zone
It is to be intersected to surround by two warps on earth surface with default longitude interval with two parallels with default latitude interval
Regular domain；Wherein, longitude is preset at intervals of the longitude difference between two adjacent polar orbits, and default latitude interval
For the latitude difference in each polar orbit between adjacent two satellite node.
Fig. 2 is that the n that the embodiment of the present invention two is provided arranges schematic diagram for the geographical zone of even number；Fig. 3 is present invention enforcement
Geographical zone arrangement schematic diagrames of the n that example two is provided for odd number；Fig. 4 is passed through when being odd number for the n that the embodiment of the present invention two is provided
The geographical zone schematic diagram of arctic point.
In the present embodiment, the distribution rule according to polar orbit low-orbit satellite network Satellite node in embodiment one
Earth surface is divided into nm geographical zone by rule so that the number of geographical zone and low-orbit satellite network Satellite node
Number it is equal.
Specifically, all geographical zones are spaced by default longitude two warps and two with default latitude interval
Parallel intersects and surrounds, and geographical zone is divided into what is divided according to the regularity of distribution of satellite node, geographical point of any two
The longitude in area is spaced all same, and the latitude interval all same of any two geographical zone, at any time satellite node and ground
Reason subregion is corresponded.
Wherein, the longitude interval of geographical zone refers to the longitude difference between two warps for surrounding the geographical zone, presets
Longitude at intervals ofThe latitude interval of geographical zone refers to the latitude difference between two parallels for surrounding the geographical zone, presets
Latitude at intervals of
In actual applications, in each polar orbit satellite node may be even number per quantity n, it is also possible to for odd number.
Different according to the odd even of the quantity of the satellite node in each polar orbit, the distribution of the geographical zone of earth surface at least includes
Following two different situations：
(1) n is even number
When n is even number, regional surface is divided into from the South Pole to the arcticOK, each line position in latitude at intervals ofTwo
Between bar parallel.To be divided into 2m geographical zone per a line, each geographical zone by two longitudes at intervals ofTwo warps
Surround with two border parallels of the row.It is final to be capable of achieving to be divided into regional surfaceIndividual, i.e., nm geographical zone obtains
The geographical zone quantity for arriving is identical with polar orbit low-orbit satellite network Satellite number of nodes.
As shown in Fig. 2 when n is even number, in the projection of triumphant Lay, to each traveling line number for marking off, from bottom to top respectively
Capable numbering is respectivelyAs the latitude interval of every a line isI-th line position is in latitude
ForWithParallel between, wherein i be positive integer, and
As shown in Fig. 2 the geographical zone in per a line can the left and right translation between two parallels.Multiple geography in often going
Subregion is numbered according to the method for being identically numbered.In any row, from left to right, first be fully located on the right side of zero degree warp
Geographical zone is first geographical zone of the row, and numbering is 1；On the right side of No. 1 geographical zone, first geographical zone numbering is 2；2
On the right side of number geographical zone, first geographical zone numbering is 3, and by that analogy, the geographical zone in the row is numbered from left to right respectively
For 1,2,3 ..., 2m.As shown in Fig. 2 each geographical zone is from D in the i-th rowi,1Beginning is labeled as D from left to right successivelyi,1, Di,2,
Di,3..., Di,j..., Di,2m-1, Di,2m.Wherein, Di,1The geographical zone that numbering in the i-th row is 1 is represented, that is, is fully located at zero degree
First geographical zone on the right side of warp；Di,jThe geographical zone that numbering in the i-th row is j is represented, j is positive integer and 1≤j≤2m.
Wherein, triumphant Lay projection refers to that earth surface is mapped as the map projection of rectangular area, in the rectangular area, identical
Laterally, it is longitudinally spaced to represent identical difference of longitude and difference of latitude respectively.
(2) n is odd number
When n is odd number, regional surface is divided into from the South Pole to the arcticOK, each row from south to northern number consecutively isWherein, the 1st row is toIn row often row be respectively positioned on latitude at intervals ofTwo parallels it
Between, and often row be divided into 2m geographical zone, each geographical zone by two longitudes at intervals ofTwo warps and the row two
Individual border parallel is surrounded.TheLine position in latitude at intervals ofTwo parallels between, and the row is divided into m geographical zone,
Each geographical zone by two longitudes at intervals ofTwo warps surround with two border parallels of the row.Finally being capable of achieving will
Regional surface is divided intoIndividual geographical zone, the geographical zone quantity for obtaining and polar orbit low orbit
Satellite network Satellite number of nodes is identical.
As shown in figure 3, when n is odd number, in the projection of triumphant Lay, to each traveling line number for marking off, from bottom to top respectively
Capable numbering is respectivelyWherein, the 1st toThe arrangement of geographical zone and numbering in row
Method is identical with each row in situation in above-mentioned (1st), and here is omitted.
TheIn row, from other each rows, geographical zone includes that 2m geographical zone is different, and the row is only geographical including m
Subregion.In the row each geographical zone be also by two longitudes at intervals ofTwo warps enclose with two border parallels of the row
Into two border warps of the geographical zone intersect at the arctic, surround two mutually with two border parallels of the geographical zone
Nonoverlapping part, the latitude interval of the two each parts areThe latitude of the geographical zone at intervals ofCan protect
Demonstrate,prove latitude interval and the geographical zone all same of other rows of each geographical zone of the row.
As shown in figure 3, theIn row, the numbering of each geographical zone is similar with other each rows, from left to right, is fully located at
First geographical zone on the right side of zero degree warp is first geographical zone of the row, and numbering is 1；On the right side of No. 2 geographical zones
One geographical zone numbering is 3, and by that analogy, numbering is 1,2,3 to the geographical zone in the row respectively from left to right ..., m.Category
In the same numbering of two partial commons of same geographical zone.
As shown in figure 4, theIn row, first geographical zone has warp 1, warp 2, parallel 1 and arctic point to surround, Jing
The longitude of line 1 and warp 2 at intervals ofThe latitude of parallel 1 and arctic point at intervals ofIt can be seen that the geographical zone latitude at intervals of
The latitude interval sum of two parts, i.e.,In the row, first geographical zone in other geographical zones and this is similar, this enforcement
Example is repeated no more.
Polar orbit low-orbit satellite network IP addressing methods provided in an embodiment of the present invention, as geographical zone is basis
What the regularity of distribution of satellite node was divided, the longitude interval all same of any two geographical zone, and any two is geographical
The latitude interval all same of subregion, satellite node and geographical zone correspond at any time.
Embodiment three
Fig. 5 is the polar orbit low-orbit satellite network IP addressing method flow charts that the embodiment of the present invention three is provided.Upper
On the basis of stating embodiment two, based on division of the above-described embodiment two to geographical zone, according to complete IP address section, determine multiple
The IP address section of each geographical zone in geographical zone, including：Obtain the IP address quantity of each geographical zone；According to each geographical point
The IP address quantity in area, and IP address section completely, determine the IP address section of each geographical zone, and the IP ground of each geographical zone
Location section is not overlapped.As shown in figure 5, the polar orbit low-orbit satellite network IP addressing methods are comprised the following steps：
Step S201, according to the regularity of distribution of polar orbit low-orbit satellite network Satellite node, determine earth surface
Multiple geographical zones.
Step S201 is identical with step S101 in above-described embodiment one, and the present embodiment is repeated no more again.
Step S202, the IP address quantity for obtaining each geographical zone.
Specifically, the quantity according to the mobile subscriber of each geographical zone Satellite network, is pre-estimated respectively by technical staff
The demand of mobile subscriber in geographical zone, and according to minimum point of the IP address of each geographical zone of demand of each geographical zone
With quantity, as the IP address quantity of each geographical zone.Wherein, the IP address section smallest allocation quantity of geographical zone be more than etc.
In the IP address demand of geographical zone, and the minimum positive integer of 2 k power can be expressed as.
In the present embodiment, for convenience, line renumbering is entered into from 1 to nm in each geographical zone, uses RiRepresent and compile
Number for i geographical zone.
With γ (Ri) represent that numbering is RiGeographical zone demand, by γ (Ri) form of k power that expands to 2 is
With Γ (Ri) represent that numbering is RiGeographical zone IP address smallest allocation quantity, it is known that
WhereinThe smallest positive integral not less than * is represented, * represents any real number.
To meet the needs of IP agreement address aggregation, numbering is RiThe IP address section of geographical zone can use following form
Represent：
Wherein X is
The IP address quantity of the IP address section of the geographical zone is
In addition, technical staff can determine each geography according to the populous degree of each geographical zone, user distribution rule
The IP address quantity of subregion；Or technical staff can be determined respectively according to historic user demand statistics or other data informations
The IP address quantity of geographical zone, the present embodiment are not specifically limited to this.
In the present embodiment, the method is illustrated as a example by being addressed using IPV4, the method also may be used in actual applications
To be applied to the situation of other addressing methods such as IPV6 addressings, the embodiment of the present invention is not specifically limited to this.
In the present embodiment, each geographical zone renumbers, can be by technical staff according to the position of each geographical zone
Or other factors are numbered to each geographical zone, the embodiment of the present invention is not specifically limited to this.
Step S203, acquisition complete IP address section to be allocated.
Wherein, complete IP address section to be allocated is previously given IP address section, for distributing to each geographical zone,
And disclosure satisfy that the demand of the IP address quantity of polar orbit low-orbit satellite network.
It should be readily apparent to one skilled in the art that the IP address quantity that IP address section is included is 2 k power, k is positive integer.
In the present embodiment, it is so that complete IP address section disclosure satisfy that the need of the IP address quantity of polar orbit low-orbit satellite network
Ask, according to the total IP demands of the satellite network, determine complete IP address section to be allocated.Following manner reality can specifically be adopted
It is existing：According to the IP address demand of each geographical zone, the IP address smallest allocation quantity of each geographical zone is determined；To each
The IP address smallest allocation quantity summation of geographical zone, as complete demand IP quantity；Determine complete IP address section to be allocated
Smallest allocation IP quantity is, more than complete demand IP quantity, and can be expressed as the minimum positive integer of 2 k power.It can be seen that treating point
The IP address quantity included with complete IP address section is more than each geographical zone IP address section smallest allocation quantity sum.Wherein,
The IP address section smallest allocation quantity of geographical zone is the IP address demand more than or equal to geographical zone, and can be expressed as 2
K power minimum positive integer.
Use ΓtEach geographical zone IP address section smallest allocation quantity sum is represented,
The IP address quantity of complete IP address section to be allocated minimum more than or equal to each geographical zone IP address section should be divided
With quantity sum, and the form of 2 k power can be expressed as.Complete IP address section to be allocated can be represented using following form：
Wherein,Front 32- ρtPosition " XX ... X " is referred to by technical staff
Fixed, X can represent 0 or 1, and front 32- ρtIn position, each X value can be with difference.
Step S204, according to the IP address quantity of each geographical zone, and completely IP address section determines each geographical zone
IP address section.
Preferably, according to the order that IP address quantity is descending, the IP address section of each geographical zone is determined successively so that
The IP quantity distribution of each geographical zone is more reasonable, it is to avoid because IP address unreasonable distribution causes the distribution of the geographical zone having
IP address very little so that certain user cannot access satellite network, while some geographical zones are much big because of IP address quantity
In the demand of the geographical zone, a large amount of IP address of leaving unused.
Preferably, when the IP address quantity for having two or more geographical zones is equal, according to two or more geography
The ascending order of numbering of subregion, determines the IP address section of each geographical zone successively.Can with by technical staff according to reality
Border is needed using other sequentially to determining the IP address section of two or more geographical zones, and the embodiment of the present invention is not done to this to be had
Body is limited.
Alternatively, numbering is RiThe IP address quantity of IP address section of geographical zone beCan also be by
According to the ρ (R of each geographical zonei) descending order, the IP address section of each geographical zone is determined successively.Further, when
There are the ρ (R of two or more geographical zonesi) it is equal when, the numbering according to two or more geographical zones is ascending suitable
Sequence, determines the IP address section of each geographical zone successively.Can with by technical staff according to actual needs using other sequentially to true
The IP address section of fixed two or more geographical zones, the embodiment of the present invention are not specifically limited to this.
Specifically, each geographical zone can be arranged according to the descending order of IP address quantity using following steps
Sequence：The order for giving each geographical zone is D1,D2,...,Dnm, and the ρ (D of each geographical zonek(i)).Step one, given one
Group variable k (1) ..., k (nm), and k (i)=i, i=1 ..., nm.Step 2, a given variable T=nm-1.Step 3,
If ρ is (Dk(i))≥ρ(Dk(i+1)) and k (i)>K (i+1), then exchange the value of k (i) and k (i+1).Step 4, the value of T is subtracted 1,
If T=0, sequence terminates；If T >=1, execution step three and step 4 are circulated.After sequence terminates, various places are finally given
The new order of reason subregion is Dk(1),Dk(2),...,Dk(nm)。
It should be noted that each geographical zone can also be ranked up using additive method in the present embodiment, this
Bright embodiment is not specifically limited to this.
In the present embodiment, the IP address section of each geographical zone includes multiple continuous IP address, by determining the ground
The minimum IP address of reason subregion determines the IP address section of the geographical zone with maximum IP address.
Use IPstart(Ri) represent that numbering is RiGeographical zone IP address section in minimum IP address,Use IPback(Ri) represent that numbering is RiGeographical zone IP address section in maximum IP ground
Location,
Assume according to the descending order of IP address quantity, each geographical zone put in order for：Dk(1),Dk(2),...,
Dk(nm).Wherein Dk(1)Represent the most geographical zone of IP address quantity, Dk(nm)Represent the geographical zone of IP address minimum number.
Adoptk(i)IP address section：
It is determined that
Determine IPback(Dk(i))=IPstart(Dk(i))+Γ(Dk(i))-1。
Wherein, Γ (Dk(i)) represent Dk(i)IP address quantity, use IP0It is minimum in expression complete IP address section to be allocated
IP address,
Can determine geographical zone Dk(i)IP address section be IP for minimum IP addressstart(Dk(i)), maximum IP address is
IPback(Dk(i)) contiguous ip address section.
Additionally it is possible to determine geographical zone Dk(i)Subnet mask beWherein ρ (Dk(i))=log22Γ
(Dk(i))。
In the present embodiment, the IP address section of each geographical zone is non-overlapping, i.e., do not exist while being included in two ground
IP address in the IP address section of reason subregion.
Step S205, according to the corresponding geographical zone of each satellite node and each geographical zone in multiple satellite nodes
IP address section, determine the port IP address over the ground of each satellite node.
When the corresponding geographical zone of destination node changes, the ground of Port IP over the ground of the destination node need to be redistributed
Location.
Specifically, the step can be realized in the following way：Defended with each in the plurality of satellite node respectively
Star node obtains the current location information of the destination node as destination node；According to the current location of the destination node
Information determines the current corresponding geographical zone of the destination node；According to the current corresponding geographical zone of the destination node, from
In the distributed IP address of the current corresponding geographical zone of the destination node, the ground of Port IP over the ground of the destination node is determined
Location.
In the present embodiment, the port IP address over the ground of each satellite node is determined successively, will currently will be determined over the ground
The satellite node of port IP address is used as destination node.
Further, the current location information according to the destination node, determines the coordinate of the destination node, if a certain
The coordinate of moment satellite node is located in the range of a certain geographical zone, and the geographical zone is the current corresponding geography of destination node
Subregion.
Preferably, will be minimum in the assignable IP address in the IP address section of destination node current corresponding geographical zone
IP address be defined as the port IP address over the ground of the destination node.It is alternatively possible to by the in IP address section second little IP ground
Location retains as private ip address, using the port IP address over the ground as the corresponding satellite node in the geographical zone.
Wherein, the distributed IP address of the geographical zone be the geographical zone IP address section in except minimum IP ground
Any IP address outside the IP address of location and maximum.
It should be readily apparent to one skilled in the art that the IP address of IP address minimum in IP address section and maximum is used as reservation IP
Address, does not do and distributes.
The IP address section of step S206, the geographical zone being located according to mobile subscriber and each geographical zone, it is determined that moving
Employ the IP address at family.
When mobile subscriber's request accesses satellite network, or mobile subscriber is preserving conversion in connection status with satellite network
During geographical zone, need to be that the mobile subscriber distributes new IP address.
Specifically, the step can be realized in the following ways：The current location information of the mobile subscriber is obtained, according to
The current location information of the mobile subscriber determines the geographical zone that the mobile subscriber is currently located.According to the mobile subscriber
The geographical zone being currently located, and the IP address of each geographical zone, determine the institute that the mobile subscriber is currently located
State the distributed IP address of geographical zone.
Preferably, distribute described in IP address except the port over the ground of the current corresponding satellite node in the geographical zone
Minimum IP address outside IP address is defined as the IP address of the mobile subscriber.
In the present embodiment, if mobile subscriber disconnects, or during mobile subscriber conversion geographical zone, the movement is used
The IP address release that family took originally, the IP address after release becomes again can distribute IP address.
In addition, geographical zone RiIP address management rule and mobile subscriber's IP address distribution update rule it is as follows：It is first
First, if RiInterior no mobile subscriber, then can be that the collection of the IP address of mobile subscriber's distribution is combined into：{IPstart(Ri)+2,
IPstart(Ri)+3,...,IPback(Ri) -1, now, for first mobile subscriber in the geographical zone, it is preferably its point
The IP address matched somebody with somebody is IPstart(Ri)+2。
If RiIt is interior, except IPstart(Ri)、IPback(Ri) and the current port address of IP over the ground of satellite node outside, institute
There is assignable IP address all to have been allocated to mobile subscriber, then can be that the collection of the IP address of mobile subscriber's distribution is combined into
It is empty.
Polar orbit low-orbit satellite network IP addressing methods provided in an embodiment of the present invention, by according to satellite node point
Earth surface is divided into multiple geographical zones by cloth rule, is the fixed IP address section of each geographical zone distribution, according to respectively defending
The corresponding geographical zone of star node is the port assignment IP address over the ground of each satellite node, according to the geography point that mobile subscriber is located
Area is that mobile subscriber distributes IP address so that only when mobile subscriber crosses over geographical zone, just updates the IP ground of mobile subscriber
Location, as the rate travel of the relative geographical zone of mobile subscriber is far smaller than the rate travel of mobile subscriber's relative satellite node,
Mobile subscriber covers the frequency in model area, therefore this across frequency far smaller than mobile subscriber's conversion satellite node of geographical zone
The polar orbit low-orbit satellite network IP addressing methods and device that bright embodiment is provided greatly reduces mobile subscriber's IP address
The frequency of renewal, so as to improve the operational efficiency of low-orbit satellite network.
Example IV
Fig. 6 is the structure chart that the polar orbit low-orbit satellite network IP that the embodiment of the present invention four is provided addresses device.Should
Device can perform the handling process of the embodiment of the method offer of embodiment one and embodiment two, as shown in fig. 6, polar orbit is low
Orbiter network IP addressing devices include that division module 601, acquisition module 602, the first determining module 603, second determine mould
Block 604 and the 3rd determining module 605.
Specifically, division module 601, for being advised according to the distribution of polar orbit low-orbit satellite network Satellite node
Rule, determines multiple geographical zones of earth surface, and polar orbit low-orbit satellite network Satellite node has following distribution rule
Rule：Polar orbit low-orbit satellite network includes multiple radius identical polar orbits, has multiple satellites on each polar orbit
Node, the angle all same between the plane of two neighboring polar orbit place, the two neighboring satellite section on each polar orbit
Latitude difference all same between point.Acquisition module 602, for obtaining complete IP address section to be allocated.First determining module
603, for according to complete IP address section, determining the IP address section of each geographical zone in multiple geographical zones.Second determines mould
Block 604, for the IP ground according to the corresponding geographical zone of each satellite node and each geographical zone in multiple satellite nodes
Location section, determines the port IP address over the ground of each satellite node.3rd determining module 605, for what is be located according to mobile subscriber
Geographical zone and the IP address section of each geographical zone, determine the IP address of mobile subscriber.
Wherein, the number of geographical zone is equal with the number of low-orbit satellite network Satellite node.Geographical zone be by
Two warps and two parallels with default latitude interval on earth surface with default longitude interval intersect the rule for surrounding
Then region.Longitude is wherein preset at intervals of the longitude difference between two adjacent polar orbits, and default latitude is at intervals of every
Latitude difference in individual polar orbit between adjacent two satellite node.
What device provided in an embodiment of the present invention can be provided specifically for execution above-described embodiment one and embodiment two
Embodiment of the method, here is omitted for concrete function.
Polar orbit low-orbit satellite network IP addressing methods provided in an embodiment of the present invention, by according to satellite node point
Earth surface is divided into multiple geographical zones by cloth rule, is the fixed IP address section of each geographical zone distribution, according to respectively defending
The corresponding geographical zone of star node is the port assignment IP address over the ground of each satellite node, according to the geography point that mobile subscriber is located
Area is that mobile subscriber distributes IP address so that only when mobile subscriber crosses over geographical zone, just updates the IP ground of mobile subscriber
Location, as the rate travel of the relative geographical zone of mobile subscriber is far smaller than the rate travel of mobile subscriber's relative satellite node,
Mobile subscriber covers the frequency in model area, therefore this across frequency far smaller than mobile subscriber's conversion satellite node of geographical zone
The polar orbit low-orbit satellite network IP addressing methods and device that bright embodiment is provided greatly reduces mobile subscriber's IP address
The frequency of renewal, so as to improve the operational efficiency of low-orbit satellite network.
Embodiment five
Fig. 7 is the structure chart that the polar orbit low-orbit satellite network IP that the embodiment of the present invention five is provided addresses device.Such as
Shown in Fig. 7, the first determining module 603 includes：First acquisition unit 6031 and the first determining unit 6032.
Specifically, first acquisition unit 6031 is used for the IP address quantity for obtaining each geographical zone.First determining unit
6032 for the IP address quantity according to each geographical zone, and preassigned complete IP address section, determines each geographical zone
IP address section, and the IP address section of each geographical zone do not overlap.
Second determining module 604 includes：Second acquisition unit 6041, the second determining unit 6042 and the 3rd determining unit
6043.Second acquisition unit 6041 is used for respectively using each satellite node in multiple satellite nodes as destination node, obtains
Take the current location information of destination node.Second determining unit 6042 determines mesh for the current location information according to destination node
The current corresponding geographical zone of mark node.3rd determining unit 6043 for according to the current corresponding geographical zone of destination node,
From the distributed IP address of the current corresponding geographical zone of destination node, the port IP address over the ground of destination node is determined.
Wherein, the distributed IP address of geographical zone is the IP address and maximum in the IP address section of geographical zone except minimum
IP address outside any IP address.
3rd determining module 605 includes：3rd acquiring unit 6051, the 4th determining unit 6052 and the 5th determining unit
6053.Wherein, the 3rd acquiring unit 6051 is used to obtain the current location information of mobile subscriber.4th determining unit 6052 is used for
The geographical zone that mobile subscriber is currently located is determined according to the current location information of mobile subscriber.5th determining unit 6053 is used for
According to the geographical zone that mobile subscriber is currently located, and the IP address of each geographical zone, determine that mobile subscriber is currently located
Geographical zone distributed IP address. the 5th determining unit 6053 is additionally operable to distribute in IP address except geographical zone is current
Minimum IP address outside the port IP address over the ground of corresponding satellite node is defined as the IP address of mobile subscriber.
Polar orbit low-orbit satellite network IP addressings device provided in an embodiment of the present invention can be specifically in execution
The embodiment of the method provided by embodiment three is stated, here is omitted for concrete function.
Polar orbit low-orbit satellite network IP addressing methods provided in an embodiment of the present invention, by according to satellite node point
Earth surface is divided into multiple geographical zones by cloth rule, is the fixed IP address section of each geographical zone distribution, according to respectively defending
The corresponding geographical zone of star node is the port assignment IP address over the ground of each satellite node, according to the geography point that mobile subscriber is located
Area is that mobile subscriber distributes IP address so that only when mobile subscriber crosses over geographical zone, just updates the IP ground of mobile subscriber
Location, as the rate travel of the relative geographical zone of mobile subscriber is far smaller than the rate travel of mobile subscriber's relative satellite node,
Mobile subscriber covers the frequency in model area, therefore this across frequency far smaller than mobile subscriber's conversion satellite node of geographical zone
The polar orbit low-orbit satellite network IP addressing methods and device that bright embodiment is provided greatly reduces mobile subscriber's IP address
The frequency of renewal, so as to improve the operational efficiency of low-orbit satellite network.
In several embodiments provided by the present invention, it should be understood that disclosed apparatus and method, which can be passed through
Its mode is realized.For example, device embodiment described above is only schematically, for example division of the unit, only
Only a kind of division of logic function, can have other dividing mode when actually realizing, such as multiple units or component can be tied
Close or be desirably integrated into another system, or some features can be ignored, or do not perform.It is another, it is shown or discussed
Coupling each other or direct-coupling or communication connection can be the INDIRECT COUPLINGs by some interfaces, device or unit or logical
Letter connection, can be electrical, mechanical or other forms.
The unit as separating component explanation can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can local to be located at one, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit both can be realized in the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit to realize.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in an embodied on computer readable and deposit
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, is used so that a computer including some instructions
Equipment (can be personal computer, server, or network equipment etc.) or processor (processor) perform the present invention each
The part steps of embodiment methods described.And aforesaid storage medium includes：USB flash disk, portable hard drive, read-only storage (Read-
Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disc or CD etc. it is various
Can be with the medium of store program codes.
Claims (10)
1. a kind of polar orbit low-orbit satellite network IP addressing methods, it is characterised in that include：
According to the regularity of distribution of polar orbit low-orbit satellite network Satellite node, multiple geographical point of earth surface is determined
Area, the polar orbit low-orbit satellite network Satellite node have the following regularity of distribution：The polar orbit low orbit is defended
StarNet's network includes multiple radius identical polar orbits, has multiple satellite nodes, two neighboring institute on each described polar orbit
State the angle all same between the plane of polar orbit place, the two neighboring described satellite node on each described polar orbit it
Between latitude difference all same；
Obtain complete IP address section to be allocated；
According to the complete IP address section, the IP address section of each geographical zone in the plurality of geographical zone is determined；
According to the corresponding geographical zone of each satellite node in the plurality of satellite node and described each geographical zone
IP address section, determine the port IP address over the ground of each satellite node；
The geographical zone being located according to mobile subscriber and the IP address section of each geographical zone, determine the movement
The IP address of user.
2. polar orbit low-orbit satellite network IP addressing methods according to claim 1, it is characterised in that
The number of the geographical zone is equal with the number of low-orbit satellite network Satellite node；
The geographical zone is by two warps on earth surface with default longitude interval and has default latitude interval
Two parallels intersect the regular domain for surrounding；
Wherein, the default longitude is at intervals of the longitude difference between two adjacent polar orbits, and the default latitude
Degree is at intervals of the latitude difference in polar orbit each described between adjacent two satellite node.
3. polar orbit low-orbit satellite network IP addressing methods according to claim 2, it is characterised in that the basis
The complete IP address section, determines the IP address section of each geographical zone in the plurality of geographical zone, including：
Obtain the IP address quantity of each geographical zone；
According to the IP address quantity of each geographical zone, and the complete IP address section, determine each described geographical point
The IP address section in area, and the IP address section of each geographical zone do not overlap.
4. polar orbit low-orbit satellite network IP addressing methods according to claim 3, it is characterised in that the basis
The IP address of the corresponding geographical zone of each satellite node and each geographical zone in the plurality of satellite node
Section, determines the port IP address over the ground of each satellite node, including：
Respectively using each satellite node in the plurality of satellite node as destination node, working as the destination node is obtained
Front position information；
The current corresponding geographical zone of the destination node is determined according to the current location information of the destination node；
According to the current corresponding geographical zone of the destination node, from dividing for the current corresponding geographical zone of the destination node
In with IP address, the port IP address over the ground of the destination node is determined；
Wherein, the distributed IP address of the geographical zone be the geographical zone IP address section in except minimum IP address and
Any IP address outside maximum IP address.
5. polar orbit low-orbit satellite network IP addressing methods according to claim 4, it is characterised in that the basis
The geographical zone and the IP address of each geographical zone that mobile subscriber is located, determine the IP ground of the mobile subscriber
Location, including：
Obtain the current location information of the mobile subscriber；
The geographical zone that the mobile subscriber is currently located is determined according to the current location information of the mobile subscriber；
According to the geographical zone that the mobile subscriber is currently located, and the IP address of each geographical zone, it is determined that described
The distributed IP address of the geographical zone that mobile subscriber is currently located；
Distribute described in IP address in addition to the port IP address over the ground of the current corresponding satellite node in the geographical zone
Minimum IP address be defined as the IP address of the mobile subscriber.
6. a kind of polar orbit low-orbit satellite network IP addresses device, it is characterised in that include：
Division module, for the regularity of distribution according to polar orbit low-orbit satellite network Satellite node, determines earth surface
Multiple geographical zones, the polar orbit low-orbit satellite network Satellite node has the following regularity of distribution：The polar region
Track low-orbit satellite network includes multiple radius identical polar orbits, has multiple satellite sections on each described polar orbit
Point, the angle all same between two neighboring polar orbit place plane are two neighboring on each described polar orbit
Latitude difference all same between the satellite node；
Acquisition module, for obtaining complete IP address section to be allocated；
First determining module, for according to the complete IP address section, determining each geographical zone in the plurality of geographical zone
IP address section；
Second determining module, for according to the corresponding geographical zone of each satellite node in the plurality of satellite node and
The IP address section of each geographical zone, determines the port IP address over the ground of each satellite node；
3rd determining module, for the IP ground of the geographical zone that is located according to mobile subscriber and each geographical zone
Location section, determines the IP address of the mobile subscriber.
7. polar orbit low-orbit satellite network IP according to claim 6 addresses device, it is characterised in that
The number of the geographical zone is equal with the number of low-orbit satellite network Satellite node；
The geographical zone is by two warps on earth surface with default longitude interval and has default latitude interval
Two parallels intersect the regular domain for surrounding；
Wherein, the default longitude is at intervals of the longitude difference between two adjacent polar orbits, and the default latitude
Degree is at intervals of the latitude difference in polar orbit each described between adjacent two satellite node.
8. polar orbit low-orbit satellite network IP according to claim 7 addresses device, it is characterised in that described first
Determining module includes：
First acquisition unit, for obtaining the IP address quantity of each geographical zone；
First determining unit, it is for the IP address quantity according to each geographical zone and preassigned described complete
Full IP address section, determines the IP address section of each geographical zone, and the IP address section of each geographical zone is not overlapped.
9. polar orbit low-orbit satellite network IP according to claim 8 addresses device, it is characterised in that described second
Determining module includes：
Second acquisition unit, obtains using each satellite node in the plurality of satellite node as destination node for respectively
Take the current location information of the destination node；
Second determining unit, for determining that the destination node is currently corresponding according to the current location information of the destination node
Geographical zone；
3rd determining unit is for according to the current corresponding geographical zone of the destination node, currently right from the destination node
In the distributed IP address of the geographical zone answered, the port IP address over the ground of the destination node is determined；
Wherein, the distributed IP address of the geographical zone be the geographical zone IP address section in except minimum IP address and
Any IP address outside maximum IP address.
10. polar orbit low-orbit satellite network IP according to claim 9 addresses device, it is characterised in that described the
Three determining modules include：
3rd acquiring unit, for obtaining the current location information of the mobile subscriber；
4th determining unit, for determining what the mobile subscriber was currently located according to the current location information of the mobile subscriber
Geographical zone；
5th determining unit, for the geographical zone being currently located according to the mobile subscriber, and described each geographical zone
IP address, determine the distributed IP address of the geographical zone that the mobile subscriber is currently located；
5th determining unit is additionally operable to distribute described in IP address except the current corresponding satellite section in the geographical zone
Minimum IP address outside the port IP address over the ground of point is defined as the IP address of the mobile subscriber.
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