CN103249156A - Method for allocating satellite network channels - Google Patents
Method for allocating satellite network channels Download PDFInfo
- Publication number
- CN103249156A CN103249156A CN201310142531XA CN201310142531A CN103249156A CN 103249156 A CN103249156 A CN 103249156A CN 201310142531X A CN201310142531X A CN 201310142531XA CN 201310142531 A CN201310142531 A CN 201310142531A CN 103249156 A CN103249156 A CN 103249156A
- Authority
- CN
- China
- Prior art keywords
- satellite
- low orbit
- channel
- orbit satellite
- wave beam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a method for allocating satellite network channels. The method comprises the steps as follows: GEO (geosychronons earth orbit) satellites are used for allocating channels for a plurality of waiting-in-line LEO (low earth orbit) satellites according to an FIFO (first in first out) principle; for LEO satellites sending call requests simultaneously, the GEO satellites allocate channels sequentially according to priority levels of the LEO satellite; the LEO satellites subjected to wave beam conversion utilize the channels in sequence of a common competitive channel and a reserved channel; and after the common competitive channel is used up, new-calling LEO satellites determine and use the reserved channels by a forcible occupy method. According to the method for allocating the satellite network channels, during satellite data communication, the GEO satellites can reasonably arrange the channels for the LEO satellites, so that the channels in the area covered by the GEO satellites can be utilized sufficiently, the LEO satellites receive the channels sequentially, and the normal operation of communication transmission is guaranteed.
Description
Technical field
The present invention relates to technical field of satellite communication, relate to the signal transmission form between high rail satellite and low orbit satellite, relate in particular to a kind of method for channel allocation of satellite network.
Background technology
Satellite communication has broad covered area, is not subjected to the advantage of ground infrastructure restriction, the application of satellite communication at present more and more widely, especially in recent years frequent natural calamity such as earthquake, floods takes place, ground equipment wired and wireless network damages in disaster, cause communication disruption when running into disaster, the condition of a disaster can't in time transmit, and incurs loss through delay the disaster relief.For this reason, more and more countries adopts low orbit satellite to carry out observations such as environment, geology, resource, to guarantee that information can effectively be transmitted when the condition of a disaster occurring.In the satellite network, because the fast moving of low orbit satellite, the visual time of each period of motion and ground station is extremely limited, in order to guarantee the reliable transmission in real time of data, when low orbit satellite and ground station are not visible, will carry out the data forwarding by high rail satellite.As shown in Figure 1: the simulation drawing of transfer of data between high rail satellite and low orbit satellite, as can be seen from the figure: three high rail satellites just can be finished except the data communication in the global overlay area of south poles, will occur in the low orbit satellite motion process moving to another high rail satellite coverage from a high rail satellite coverage, because the channel quantity of high rail satellite is limited, the track difference of low orbit satellite operation, low orbit satellite quantity in each high rail satellite coverage is also with dynamic change, when low orbit satellite discharges a channel, need another high rail satellite of request to arrange next channel for it, in data communication, low orbit satellite needs to carry out the conversion between wave beam in the overlay area of a high rail satellite, carrying out needing high rail satellite reasonably to arrange channel for it equally when wave beam switches, thereby improving the resource utilization ratio problem.In the prior art, do not provide satellite and how to convert channel and how to add up to the method for arranging and using channel when carrying out data communication, cause when satellite communication, data transmission efficiency is low, the phenomenon that resource is not used appropriately.
Summary of the invention
Problem according to prior art exists the invention discloses a kind of satellite network method for channel allocation, has the following steps:
Step 1: high rail satellite is a plurality of low orbit satellite allocated channels of waiting in line according to first-in first-out FIFO principle, and to sending the low orbit satellite of call request simultaneously, high rail satellite just is followed successively by its allocated channel according to the priority of low orbit satellite;
Step 2: be channel reservation and common competitive channel with the channel distribution in the wave beam of high rail satellite;
The low orbit satellite that carries out the wave beam switching uses channel successively according to the order of earlier common competitive channel, back channel reservation, after common competitive channel is finished using, newly calls out low orbit satellite and uses channel reservation according to the conversion method; Described conversion method is as follows:
If the channel reservation number of free time is greater than the channel number of ongoing communication in the last wave beam in the current wave beam, then newly call out the success of low orbit satellite conversion channel reservation;
If the channel reservation number of free time is less than the channel number of ongoing communication in the last wave beam zone in the current wave beam, then whether convert channel reservation according to the new low orbit satellite position judgment of calling out; Determination methods is as follows:
If newly call out distance between low orbit satellite and the current wave beam less than carrying out the low orbit satellite and the distance between the current beam boundary that wave beam switches in the last wave beam, then newly call out low orbit satellite conversion channel reservation successfully;
If newly call out distance between low orbit satellite and the current wave beam greater than carrying out the low orbit satellite and the distance between the current beam boundary that wave beam switches in the last wave beam, then newly call out low orbit satellite conversion channel reservation and fail.
In the step 1: the priority of low orbit satellite is during more than or equal to threshold value, and this low orbit satellite sends the calling of request allocated channel to high rail satellite; When the priority of low orbit satellite during less than threshold value, this low orbit satellite image data is waited for.
Described priority be in the low orbit satellite buffer memory data quantity stored account for the ratio of whole buffer memory capacity, the priority of low orbit satellite of wherein sending urgent call is the highest.
When not having idle channel on the high rail satellite, if the low orbit satellite of urgent call, high rail satellite cuts off the channel of the minimum low orbit satellite of priority and this channel allocation is given the low orbit satellite of urgent call.
In the step 2: newly call out low orbit satellite and use common competitive channel with the low orbit satellite of asking to carry out the wave beam switching according to first-in first-out FIFO principle.
In the step 2, if the channel in the wave beam zone of high rail satellite is all occupied, then newly call out low orbit satellite call request failure, the low orbit satellite that the request wave beam switches enters the state of waiting in line, when the queuing number surpassed total channel numerical value, the low orbit satellite of request wave beam switching was forced to abandon.
Owing to adopted technique scheme, method for channel allocation in the satellite network provided by the invention, when satellite data communication, realized that high rail satellite reasonably is low orbit satellite arrangement channel, channel in the high rail satellite coverage area is utilized fully, make low orbit satellite orderly receive the normal operation that channel has guaranteed communications.Method for channel allocation in the satellite network disclosed by the invention has the following advantages:
1. the channel in the high rail satellite coverage area is rationally used fully.
2. when data communication, because the mode of conversion channel reservation makes the orderly acquisition channel of a plurality of low orbit satellites, channel do not occur convering between the low orbit satellite and clash the phenomenon that causes transfer of data to be interrupted.
3. guaranteed the effective transmission of satellite communication system information.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, the accompanying drawing that describes below only is some embodiment that put down in writing among the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the illustraton of model of the low rail of high rail satellite and the transmission of low orbit satellite signal.
The flow chart that Fig. 2 is the low orbit satellite allocated channel for high rail satellite.
Fig. 3 is the new schematic diagram of calling out low orbit satellite conversion channel reservation.
Fig. 4 is the new flow chart of calling out low orbit satellite conversion channel reservation.
Embodiment
For making technical scheme of the present invention and advantage clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is known complete description:
Satellite network method for channel allocation disclosed by the invention, as shown in Figure 1: in the satellite network, because the fast moving of low orbit satellite, the visual time of its period of motion and ground station is all extremely limited, in order to guarantee the reliable transmission in real time of data, when low orbit satellite and ground station are not visible, to carry out data by high rail satellite transmits, in data forwarding process, when low orbit satellite moves to another high rail satellite coverage area by a high rail satellite coverage area, low orbit satellite need carry out channel switch between two high rail satellites, and the channel quantity of high rail satellite is limited, therefore need make rational method for channel allocation.
Be the flow chart that high rail satellite is the method for low orbit satellite allocated channel as Fig. 2: when the overlay area of a high rail satellite will enter the overlay area of next high rail satellite on low orbit satellite is leaving, need carry out the conversion of interchannel.If the buffer memory occupancy of low orbit satellite is during more than or equal to threshold value, then this low orbit satellite sends the calling of request allocated channel; And be defined as new calling low orbit satellite.If the buffer memory occupancy of low orbit satellite is during less than threshold value, then this low orbit satellite image data is waited for.The buffer memory occupancy of low orbit satellite is defined as: in the buffer memory data quantity stored account for the ratio of whole buffer memory capacity.The priority of low orbit satellite is directly proportional with the buffer memory occupancy, and namely the buffer memory occupancy is more high, and priority is more high.After high rail satellite receives the call request that low orbit satellite sends, judge at first whether this calling is the low orbit satellite that sends urgent call, or when the condition of a disaster takes place, the low orbit satellite of transmission the condition of a disaster information, be made as the priority of the low orbit satellite that is in an emergency the highest, can be called the VIP satellite, so high rail satellite needs at first to arrange channel for the VIP satellite, when not having idle channel on this high rail satellite, with cutting off the channel of the minimum low orbit satellite of priority, give the VIP satellite with this channel allocation.When if this low orbit satellite is not the VIP satellite, then this low orbit satellite continues periodic duty, waits for that high rail satellite is its allocated channel.For those non-VIP satellites, do not consider the channel reservation problem, high rail satellite is that low orbit satellite is reasonably arranged channel, when arranging channel according to the FIFO principle, namely be introduced into the principle that obtains channel earlier, for the low orbit satellite that sends request call simultaneously, high rail satellite is according to their priority height, from high to low be the low orbit satellite allocated channel.When not having available channel in the high rail satellite, then low orbit satellite is waited in line.
High rail satellite adopts multi-beam antenna usually, a base station of the coverage condition of each wave beam and terrestrial cellular net covers similar, the high-speed motion of low orbit satellite, a wave beam that makes it from high rail satellite is switched to another wave beam, in order to guarantee communication continuity, especially the real-time Transmission of significant data also needs to carry out the switching between high rail satellite beams.When switching between the wave beam of low orbit satellite in the overlay area of high rail satellite, discharge the channel that uses in the last wave beam, and need high rail satellite be that it is at next wave beam allocating channels therein.Also have this moment the new low orbit satellite of calling out will enter in the interior current wave beam zone of this high rail satellite coverage area, high rail satellite need be this new calling low orbit satellite allocated channel.
Embodiment:
If have C bar channel in some wave beams of high rail satellite, claim that this wave beam is current wave beam, low orbit satellite is when waiting in line so, and maximum queue length is C also, distributes C
RBar is channel reservation, offers to carry out the low orbit satellite that wave beam switches; Remaining C-C
RBar is common competitive channel, and the low orbit satellite and the new low orbit satellite of calling out that offer the wave beam switching use jointly.The new low orbit satellite of calling out low orbit satellite and need carrying out the wave beam switching namely is introduced into the principle that obtains channel earlier and uses C-C jointly according to the FIFO principle
RThe bar channel.
When a low orbit satellite need carry out the wave beam switching, at first use common competitive channel, after common competitive channel is all occupied, re-use channel reservation.If C bar channel is all occupied, the low orbit satellite that then needs to carry out the wave beam switching sends calling and enters the state of waiting in line, the queuing overlapping region of place between adjacent beams.When not having available channel when low orbit satellite is in the overlapping region, then continue to wait in line, when a channel is released, the to be switched low orbit satellite that then is in the formation first place will obtain channel automatically, and formation refreshes successively.If motion does not also have available channel above the overlapping region then the low orbit satellite handover call request is forced to abandon,
When a new calling low orbit satellite sends the channel that uses in the current wave beam zone to system, if C bar channel is all occupied, then new call request failure if common competitive channel is all not occupied, then distributes idle channel to give this new calling low orbit satellite.If the common competitive channel in the current wave beam zone is all occupied, and channel reservation also has when idle, newly calls out low orbit satellite and judges whether to convert channel reservation according to the conversion algorithm, and method is as follows: as shown in Figure 3 and Figure 4:
If in the last wave beam of current wave beam j user's ongoing communication just arranged, the channel use state of namely going up a wave beam is in the j attitude, establishes the interior channel use state of current wave beam and is in the i attitude, and namely idle channel reservation number is that (C-i) is individual in the current wave beam,
As (C-i) during greater than j, be that the channel reservation number of free time in the current wave beam is greater than the channel number of ongoing communication in the last wave beam zone, illustrate that just the user who has sufficient channel reservation to keep supplying in the wave beam in the current wave beam carries out the wave beam switching, then newly call out the success of low orbit satellite conversion channel reservation.
As (C-i) during less than j, be that the channel reservation number of free time in the current wave beam is less than the channel number of ongoing communication in the last wave beam zone, illustrate just whether the low orbit satellite that does not have enough channel reservations to keep supplying in the wave beam in the current wave beam carries out wave beam switching use, then convert channel reservation according to the new low orbit satellite position judgment of calling out; Determination methods is as follows:
The speed of service of supposing to carry out the low orbit satellite that wave beam switches equals newly to call out the speed of service of low orbit satellite, be B if newly call out low orbit satellite, the distance of the current wave beam of distance is S, if the low orbit satellite that leaves at first in the last wave beam zone of current wave beam is A, satellite A will carry out wave beam and switch, low orbit satellite A is L apart from the distance of next wave beam
As S during more than or equal to L, namely go up the low orbit satellite that leaves at first in the wave beam zone and arrive current wave beam zone earlier, then newly call out the failure of low orbit satellite conversion channel reservation;
As S during less than L, namely newly call out low orbit satellite and arrive in the current wave beam zone earlier, then newly call out the success of low orbit satellite conversion channel reservation.
Further, the priority of low orbit satellite is during more than or equal to threshold value, and this low orbit satellite sends the calling of request allocated channel to high rail satellite; When the priority of low orbit satellite during less than threshold value, this low orbit satellite image data is waited for.Just can send the high rail satellite of request when namely the priority of new calling low orbit satellite and the low orbit satellite that need carry out the wave beam switching is more than or equal to threshold value and be the calling of its allocated channel.
Further, priority definition be in the low orbit satellite buffer memory data quantity stored account for the ratio of whole buffer memory capacity, the priority of low orbit satellite of wherein sending urgent call is the highest.Priority with the low orbit satellite of urgent call when the condition of a disaster or special circumstances occurring is made as the highest VIP of being defined as satellite.If during the VIP low orbit satellite, even do not have idle channel on the high rail satellite, then high rail satellite will cut off the channel of the minimum low orbit satellite of priority, give the VIP satellite with this channel allocation.
Further, newly call out low orbit satellite and use common competitive channel with the low orbit satellite of asking to carry out the wave beam switching according to first-in first-out FIFO principle.
Further, if the C bar channel in the wave beam zone of high rail satellite is all occupied, then newly call out low orbit satellite call request failure, the low orbit satellite that the request wave beam switches enters the state of waiting in line, when the queuing number surpassed total channel numerical value, the low orbit satellite of request wave beam switching was forced to abandon.
The invention has the beneficial effects as follows: when low orbit satellite switches, at first, guarantee the channel allocation of VIP satellite in the overlay area of many high rail satellites; Secondly, abandoning data because buffer memory is not enough for avoiding satellite, is that parameter is set satellite priority with the buffer memory occupancy of low orbit satellite, and high rail satellite reasonably is its allocated channel according to the height of low orbit satellite priority.When low orbit satellite switches between wave beam, when common competitive channel all is used and channel reservation when the free time is arranged, newly call out low orbit satellite and will judge whether to convert channel reservation according to the method for conversion channel reservation disclosed by the invention.Convert disclosing of channel method among the present invention, reduced the blocking rate of new calling low orbit satellite effectively, thereby increased the channel utilization of high rail satellite in the satellite system.
The above; only be the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (6)
1. satellite network method for channel allocation is characterized in that: have following steps:
Step 1: high rail satellite is a plurality of low orbit satellite allocated channels of waiting in line according to first-in first-out FIFO principle, and to sending the low orbit satellite of call request simultaneously, high rail satellite just is followed successively by its allocated channel according to the priority of low orbit satellite;
Step 2: be channel reservation and common competitive channel with the channel distribution in the wave beam of high rail satellite;
The low orbit satellite that carries out the wave beam switching uses channel successively according to the order of earlier common competitive channel, back channel reservation, after common competitive channel is finished using, newly calls out low orbit satellite and uses channel reservation according to the conversion method; Described conversion method is as follows:
If the channel reservation number of free time is greater than the channel number of ongoing communication in the last wave beam in the current wave beam, then newly call out the success of low orbit satellite conversion channel reservation;
If the channel reservation number of free time is less than the channel number of ongoing communication in the last wave beam zone in the current wave beam, then whether convert channel reservation according to the new low orbit satellite position judgment of calling out; Determination methods is as follows:
If newly call out distance between low orbit satellite and the current wave beam less than carrying out the low orbit satellite and the distance between the current beam boundary that wave beam switches in the last wave beam, then newly call out low orbit satellite conversion channel reservation successfully;
If newly call out distance between low orbit satellite and the current wave beam greater than carrying out the low orbit satellite and the distance between the current beam boundary that wave beam switches in the last wave beam, then newly call out low orbit satellite conversion channel reservation and fail.
2. a kind of satellite network method for channel allocation according to claim 1 is further characterized in that: in the step 1: the priority of low orbit satellite is during more than or equal to threshold value, and this low orbit satellite sends the calling of request allocated channel to high rail satellite; When the priority of low orbit satellite during less than threshold value, this low orbit satellite image data is waited for.
3. a kind of satellite network method for channel allocation according to claim 1, be further characterized in that: described priority be in the low orbit satellite buffer memory data quantity stored account for the ratio of whole buffer memory capacity, the priority of low orbit satellite of wherein sending urgent call is the highest.
4. according to claim 1 or 3 described a kind of satellite network method for channel allocation, be further characterized in that: when not having idle channel on the high rail satellite, if the low orbit satellite of urgent call, high rail satellite cuts off the channel of the minimum low orbit satellite of priority and this channel allocation is given the low orbit satellite of urgent call.
5. a kind of satellite network method for channel allocation according to claim 1 is further characterized in that: in the step 2: newly call out low orbit satellite and use common competitive channel with the low orbit satellite of asking to carry out the wave beam switching according to first-in first-out FIFO principle.
6. a kind of satellite network method for channel allocation according to claim 1, be further characterized in that: in the step 2, if the channel in the wave beam zone of high rail satellite is all occupied, then newly call out low orbit satellite call request failure, the low orbit satellite that the request wave beam switches enters the state of waiting in line, when the queuing number surpassed total channel numerical value, the low orbit satellite of request wave beam switching was forced to abandon.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310142531.XA CN103249156B (en) | 2013-04-23 | 2013-04-23 | Method for allocating satellite network channels |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310142531.XA CN103249156B (en) | 2013-04-23 | 2013-04-23 | Method for allocating satellite network channels |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103249156A true CN103249156A (en) | 2013-08-14 |
CN103249156B CN103249156B (en) | 2014-01-15 |
Family
ID=48928312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201310142531.XA Active CN103249156B (en) | 2013-04-23 | 2013-04-23 | Method for allocating satellite network channels |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN103249156B (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104363042A (en) * | 2014-12-04 | 2015-02-18 | 大连大学 | GEO-LEO satellite network channel allocation method |
CN106788678A (en) * | 2016-12-16 | 2017-05-31 | 中国电子科技集团公司第五十四研究所 | A kind of star ground method for switching network that channel reservation is seized based on the time |
CN107241134A (en) * | 2017-06-28 | 2017-10-10 | 东北大学 | A kind of method for channel allocation of LEO satellite communication systems |
CN107979406A (en) * | 2017-11-28 | 2018-05-01 | 中国电子科技集团公司第五十四研究所 | A kind of optimization station method of state management based on satellite contention channel |
CN108174451A (en) * | 2017-12-19 | 2018-06-15 | 南京控维通信科技有限公司 | Satellite channel allocation method based on the distribution of quadratic function power |
CN109088669A (en) * | 2018-07-18 | 2018-12-25 | 北京天链测控技术有限公司 | A kind of multimedia LEO satellite communications method |
CN109104236A (en) * | 2018-07-18 | 2018-12-28 | 北京天链测控技术有限公司 | A kind of method that low orbit satellite is communicated with grounded receiving station |
CN110072264A (en) * | 2019-05-28 | 2019-07-30 | 重庆邮电大学 | A kind of LEO Satellite switching method |
CN110098861A (en) * | 2019-05-07 | 2019-08-06 | 中国人民解放军32039部队 | The autonomous collaborative communication method of more spacecrafts, system and electronic equipment |
CN110572203A (en) * | 2019-10-14 | 2019-12-13 | 中国科学院计算技术研究所 | User switching method in satellite communication |
CN111211829A (en) * | 2019-12-31 | 2020-05-29 | 东方红卫星移动通信有限公司 | Method for lossless switching of data between low-orbit satellites |
CN111405540A (en) * | 2020-04-08 | 2020-07-10 | 成都爱科特科技发展有限公司 | Channel allocation method for emergency service |
CN111464227A (en) * | 2020-03-17 | 2020-07-28 | 深圳市航天华拓科技有限公司 | Low-earth-orbit satellite network switching method, device and system |
CN112383343A (en) * | 2020-11-10 | 2021-02-19 | 东方红卫星移动通信有限公司 | Channel dynamic reservation method and system based on geographical position of cluster user |
CN112399496A (en) * | 2019-08-15 | 2021-02-23 | 大唐移动通信设备有限公司 | Satellite cell switching method and device |
CN113853024A (en) * | 2021-11-29 | 2021-12-28 | 中国星网网络系统研究院有限公司 | Data transmission method, system, device and storage medium |
CN114449604A (en) * | 2022-02-14 | 2022-05-06 | 哈尔滨工业大学(深圳) | Low-orbit satellite switching method and device based on graph theory and multi-attribute decision combination |
CN115276774A (en) * | 2022-08-04 | 2022-11-01 | 西华大学 | Multi-channel voice communication method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5566354A (en) * | 1994-09-26 | 1996-10-15 | Sehloemer; Jerry R. | System and method for channel assignment in a satellite telephone system |
EP0936766A1 (en) * | 1997-07-03 | 1999-08-18 | Kabushiki Kaisha Toshiba | Satellite broadcasting system |
CN102413535A (en) * | 2011-12-28 | 2012-04-11 | 南京邮电大学 | Route cognizing method of interstellar links of multi-level satellite communication system |
CN102740478A (en) * | 2012-07-04 | 2012-10-17 | 航天恒星科技有限公司 | Position information assisted satellite channel allocation method |
CN103036607A (en) * | 2012-12-12 | 2013-04-10 | 南京邮电大学 | Communication channel dynamic reserved allocation method suitable for low orbit satellite network |
-
2013
- 2013-04-23 CN CN201310142531.XA patent/CN103249156B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5566354A (en) * | 1994-09-26 | 1996-10-15 | Sehloemer; Jerry R. | System and method for channel assignment in a satellite telephone system |
EP0936766A1 (en) * | 1997-07-03 | 1999-08-18 | Kabushiki Kaisha Toshiba | Satellite broadcasting system |
CN102413535A (en) * | 2011-12-28 | 2012-04-11 | 南京邮电大学 | Route cognizing method of interstellar links of multi-level satellite communication system |
CN102740478A (en) * | 2012-07-04 | 2012-10-17 | 航天恒星科技有限公司 | Position information assisted satellite channel allocation method |
CN103036607A (en) * | 2012-12-12 | 2013-04-10 | 南京邮电大学 | Communication channel dynamic reserved allocation method suitable for low orbit satellite network |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104363042A (en) * | 2014-12-04 | 2015-02-18 | 大连大学 | GEO-LEO satellite network channel allocation method |
CN106788678B (en) * | 2016-12-16 | 2019-05-31 | 中国电子科技集团公司第五十四研究所 | A kind of star that seizing channel reservation based on time ground method for switching network |
CN106788678A (en) * | 2016-12-16 | 2017-05-31 | 中国电子科技集团公司第五十四研究所 | A kind of star ground method for switching network that channel reservation is seized based on the time |
CN107241134A (en) * | 2017-06-28 | 2017-10-10 | 东北大学 | A kind of method for channel allocation of LEO satellite communication systems |
CN107241134B (en) * | 2017-06-28 | 2020-09-11 | 东北大学 | Channel allocation method of low-earth-orbit satellite communication system |
CN107979406A (en) * | 2017-11-28 | 2018-05-01 | 中国电子科技集团公司第五十四研究所 | A kind of optimization station method of state management based on satellite contention channel |
CN107979406B (en) * | 2017-11-28 | 2020-06-30 | 中国电子科技集团公司第五十四研究所 | Optimized station state management method based on satellite contention channel |
CN108174451A (en) * | 2017-12-19 | 2018-06-15 | 南京控维通信科技有限公司 | Satellite channel allocation method based on the distribution of quadratic function power |
CN108174451B (en) * | 2017-12-19 | 2019-07-09 | 南京控维通信科技有限公司 | Satellite channel allocation method based on the distribution of quadratic function power |
CN109104236A (en) * | 2018-07-18 | 2018-12-28 | 北京天链测控技术有限公司 | A kind of method that low orbit satellite is communicated with grounded receiving station |
CN109088669A (en) * | 2018-07-18 | 2018-12-25 | 北京天链测控技术有限公司 | A kind of multimedia LEO satellite communications method |
CN109088669B (en) * | 2018-07-18 | 2020-12-15 | 北京天链测控技术有限公司 | Low-earth-orbit satellite communication method |
CN110098861A (en) * | 2019-05-07 | 2019-08-06 | 中国人民解放军32039部队 | The autonomous collaborative communication method of more spacecrafts, system and electronic equipment |
CN110072264A (en) * | 2019-05-28 | 2019-07-30 | 重庆邮电大学 | A kind of LEO Satellite switching method |
CN112399496A (en) * | 2019-08-15 | 2021-02-23 | 大唐移动通信设备有限公司 | Satellite cell switching method and device |
CN110572203A (en) * | 2019-10-14 | 2019-12-13 | 中国科学院计算技术研究所 | User switching method in satellite communication |
CN111211829A (en) * | 2019-12-31 | 2020-05-29 | 东方红卫星移动通信有限公司 | Method for lossless switching of data between low-orbit satellites |
CN111464227A (en) * | 2020-03-17 | 2020-07-28 | 深圳市航天华拓科技有限公司 | Low-earth-orbit satellite network switching method, device and system |
CN111405540A (en) * | 2020-04-08 | 2020-07-10 | 成都爱科特科技发展有限公司 | Channel allocation method for emergency service |
CN112383343A (en) * | 2020-11-10 | 2021-02-19 | 东方红卫星移动通信有限公司 | Channel dynamic reservation method and system based on geographical position of cluster user |
CN113853024A (en) * | 2021-11-29 | 2021-12-28 | 中国星网网络系统研究院有限公司 | Data transmission method, system, device and storage medium |
CN114449604A (en) * | 2022-02-14 | 2022-05-06 | 哈尔滨工业大学(深圳) | Low-orbit satellite switching method and device based on graph theory and multi-attribute decision combination |
CN114449604B (en) * | 2022-02-14 | 2023-09-12 | 哈尔滨工业大学(深圳) | Low-orbit satellite switching method and device based on graph theory and multi-attribute decision combination |
CN115276774A (en) * | 2022-08-04 | 2022-11-01 | 西华大学 | Multi-channel voice communication method |
CN115276774B (en) * | 2022-08-04 | 2023-09-15 | 西华大学 | Multi-channel voice communication method |
Also Published As
Publication number | Publication date |
---|---|
CN103249156B (en) | 2014-01-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103249156B (en) | Method for allocating satellite network channels | |
CN104994583B (en) | Multi-channel MAC protocols method based on cluster mechanism in vehicular ad hoc network | |
CN105743717B (en) | Incorporate Information Network system and communication means based on SDN technology | |
CN111917457B (en) | Channel switching method of high dynamic terminal in low earth orbit constellation satellite communication system | |
US10142907B2 (en) | Method and apparatus for dynamically combining cells, network device, and system | |
CN102651869A (en) | Method and device for distributing spectrum resources | |
CN102740326B (en) | Managing method and device for processing resources in BBU | |
CN113452432A (en) | Dynamic allocation method for downlink resources of multi-beam low-orbit satellite communication | |
CN103944630A (en) | Channel dynamic bandwidth allocation and access method for space information network | |
CN102377980A (en) | Backup method and system of MCU (multi-point control unit) in video conference | |
CN104796187A (en) | Enhanced transmission method based on stratospheric quasi-static satellite base station | |
CN104185290A (en) | Data scheduling method, relay equipment, relay node and system | |
CN102138336B (en) | Moving-picture image data-distribution method | |
CN102548002B (en) | Method for allocating wireless resources based on multi-user cooperation | |
WO1993007725A1 (en) | Method for radio channel allocation | |
CA2251025A1 (en) | Reduction of queuing delays by multiple subgroup assignments | |
US4726020A (en) | Multiplex information transmission system | |
CN108777875B (en) | Service processing method and device | |
CN103118433B (en) | Efficient TDD/TDMA channel dynamic allocation method | |
CN108174424B (en) | Beam switching method based on variable-length time slot | |
CN108495278A (en) | The business transmitting method of low time delay resources control in a kind of satellite network | |
CN101902746A (en) | Method for dynamically allocating frequencies among base stations in trunking communication system and implementation system thereof | |
KR20020039192A (en) | Channel code assignment method for uplink synchronous system in mobile communication network | |
Wang et al. | The research of channel reservation strategy in LEO satellite network | |
CN103298026A (en) | Method and device for allocating standalone dedicated control information channel in dynamic mode |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |