CN108243498A - A kind of method and apparatus of satellite system resource allocation - Google Patents
A kind of method and apparatus of satellite system resource allocation Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 35
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- 238000012913 prioritisation Methods 0.000 claims description 9
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/563—Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources
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Abstract
An embodiment of the present invention provides a kind of method and apparatus of satellite system resource allocation, wherein the method includes：Base station receives the solicited message of terminal；Channel type and number of time slots TsLen are determined according to solicited message；Using channel type, number of time slots TsLen and default resource allocation mode, all carrier waves of the spot beam of satellite system are traversed, generate target carrier list；Carrier wave in target carrier list is subjected to priority ranking according to preset rules, obtains the carrier wave of highest priority；The carrier wave of highest priority is determined as target carrier；It is described TsLen continuous slot of terminal distribution in target carrier, using the embodiment of the present invention, target carrier list can be generated according to default resource allocation mode, and priority ranking is carried out to the carrier wave in target carrier list, obtain the carrier wave of highest priority, the carrier wave of highest priority is determined as target carrier, and time slot is distributed in target carrier, can realize the optimum distribution of satellite system resource.
Description
Technical field
The present invention relates to field of communication technology, more particularly to a kind of method and apparatus of satellite system resource allocation.
Background technology
Satellite system is that one kind forwards signal of communication using satellite as relay station, is communicated between multiple earth stations, satellite
The main purpose of communication is to realize covering " seamless " to ground.
In recent years, time division multiple acess multiplexing technology is widely used in satellite communication, i.e., multiple earth stations occupy
Identical frequency band, but occupy different time slots.Compared with Frequency Division Multiple Access, time division multiple acess multiplexing technology will not generate mutual cadre enrolled among workers
It disturbs, is not required to separate each earth station signal with Up/Down Conversion, is suitble to digital communication, can be passed according to the variation of portfolio distribution according to need
Defeated bandwidth, increases considerably actual capacity.
Physical resource is in time with TDMA (Time Division Multiple Access, time division multiple acess multiplexing) frame
It is represented with time slot, a TDMA frame includes 40 time slots, and timeslot number is from 0 to 39.Comprising multiple carrier waves under spot beam, including public affairs
Common carrier and traffic carrier, can carry in the traffic carrier of spot beam dedicated channel DCH (Dedicated Channel, it is special
Channel), it is two kinds that dedicated channel occupies the length of number of time slots and be divided into according to it：DCH4 (continuously occupying 4 time slots) and DCH8
(continuously occupying 8 time slots).Gateway station is determined according to the request of user to user's distribution DCH4 channels or DCH8 channels.To use
The DCH channels of family distribution are represented by frequency point, frame and time slot.In resource allocation process, in addition to the wireless money of DCH channels
Source, gateway station distribute transmission power to DCH simultaneously.
Existing resource allocation methods mainly improve the utilization rate of radio resource, such as the utilization rate of time slot, however,
Satellite system is the system that a down transmitting power is limited, and existing resource allocation methods only ensure that all carrier waves correspond to
Same time slot general power be no more than spot beam downlink maximum transmission power, for how preferably to reduce entire spot beam
Down transmitting power then without corresponding technical solution.
Invention content
In view of the above problems, it is proposed that the embodiment of the present invention overcomes the above problem or at least partly in order to provide one kind
The method and apparatus of a kind of satellite system resource allocation to solve the above problems.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of method of satellite system resource allocation, the sides
Method includes：
Receive the solicited message of terminal；
Channel type and number of time slots TsLen are determined according to the solicited message；
Using the channel type, number of time slots TsLen and default resource allocation mode, the point of the satellite system is traversed
All carrier waves of wave beam generate target carrier list；
Carrier wave in the target carrier list is subjected to priority ranking according to preset rules, obtains highest priority
Carrier wave；
The carrier wave of the highest priority is determined as target carrier；
It is described TsLen continuous slot of terminal distribution in the target carrier.
Preferably, the default resource allocation mode includes power mode of priority, described using the channel type, time slot
Number TsLen and default resource allocation mode traverse all carrier waves of the spot beam of the satellite system, generation target carrier row
The step of table, includes：
Traverse the carrier wave of the spot beam of the satellite system；
When the channel of the carrier wave is the channel type, judge whether the carrier wave meets power mode of priority correspondence
Distributive condition；
If so, the carrier wave is added in target carrier list.
Preferably, it is described when the channel of the carrier wave is the channel type, judge whether the carrier wave meets power
The step of mode of priority corresponding distributive condition, includes：
Obtain TsLen continuous slot for including free timeslot starting point on the carrier wave；
Each time slot of the TsLen continuous slot is obtained respectively in the power of the carrier wave of spot beam；
Using each time slot respectively in the power of the carrier wave of spot beam, corresponding first work(of each time slot is calculated
Rate and；
Judge the first power of each time slot and whether respectively less than or equal to preset maximum power；
If so, judge that the carrier wave meets the corresponding distributive condition of power mode of priority；
If it is not, then obtaining next TsLen continuous slot including free timeslot starting point on the carrier wave, and return to acquisition
Each time slot of the TsLen continuous slot is respectively the power of the carrier wave of spot beam the step of.
Preferably, the default resource allocation mode includes time slots priority pattern, described using the channel type, time slot
Number TsLen and default resource allocation mode traverse all carrier waves of the spot beam of the satellite system, generation target carrier row
The step of table, includes：
Traverse the carrier wave of the spot beam of the satellite system；
Count the free timeslot number of the carrier wave；
Judge whether the free timeslot number is greater than or equal to the number of time slots TsLen；
If so, the carrier wave is added in target carrier list.
Preferably, institute is traversed using the channel type, number of time slots TsLen and default resource allocation mode described
After the step of stating all carrier waves of the spot beam of satellite system, generating target carrier list, further include：
Judge whether the target carrier list is empty；
If so, prompting resource allocation failed message.
Preferably, the carrier wave by the target carrier list carries out priority ranking according to preset rules, obtains
The step of carrier wave of highest priority, includes：
Obtain the work(of first free timeslot of each carrier wave in the target carrier list in all carrier waves of spot beam
Rate；
Using each carrier wave first free timeslot spot beam all carrier waves power, be calculated each
Second power of first free timeslot of carrier wave and；
Be ranked up second power and from small to large, obtain minimum power and；
The minimum power and corresponding carrier wave are determined as to the carrier wave of highest priority.
Preferably, the carrier wave by the target carrier list carries out priority ranking according to preset rules, obtains
The step of carrier wave of highest priority, includes：
Obtain the free timeslot number of each carrier wave in the target carrier list；
The free timeslot number of each carrier wave is sorted from big to small, obtains maximum free timeslot number；
The corresponding carrier wave of the maximum free timeslot number is determined as to the carrier wave of highest priority.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of device of satellite system resource allocation, the dresses
Put including：
Request message receiving module, for receiving the solicited message of terminal；
Channel type and number of time slots determining module, for determining channel type and number of time slots according to the solicited message
TsLen；
Target carrier List Generating Module, for using the channel type, number of time slots TsLen and default resource allocation
Pattern traverses all carrier waves of the spot beam of the satellite system, generates target carrier list；
Prioritization module, for the carrier wave in the target carrier list to be carried out priority row according to preset rules
Sequence obtains the carrier wave of highest priority；
Target carrier determining module, for the carrier wave of the highest priority to be determined as target carrier；
Time slot distribution module, for being described TsLen continuous slot of terminal distribution in the target carrier.
Preferably, the default resource allocation mode includes power mode of priority, the target carrier List Generating Module
Including：
First carrier traverses submodule, for traversing the carrier wave of the spot beam of the satellite system；
First judging submodule, for when the channel of the carrier wave is the channel type, whether judging the carrier wave
Meet the corresponding distributive condition of power mode of priority；
First object carrier list generates submodule, for the carrier wave to be added in target carrier list.
Preferably, first judging submodule includes：
Time slot acquiring unit, for obtaining TsLen continuous slot for including free timeslot starting point on the carrier wave；
Power obtaining unit, for obtaining each time slot of the TsLen continuous slot respectively in the carrier wave of spot beam
Power；
First power and computing unit, for, respectively in the power of the carrier wave of spot beam, being calculated using each time slot
Obtain corresponding first power of each time slot and；
First power and judging unit, for judge the first power of each time slot and whether be respectively less than or equal to it is preset most
It is high-power；
Carrier wave identifying unit, for when the first power of each time slot and being respectively less than or during equal to preset maximum power, sentencing
The fixed carrier wave meets the corresponding distributive condition of power mode of priority；Otherwise, it obtains next including free timeslot on the carrier wave
TsLen continuous slot of starting point, and each time slot for obtaining the TsLen continuous slot is returned respectively in the load of spot beam
The step of power of wave.
Preferably, the default resource allocation mode includes time slots priority pattern, the target carrier List Generating Module
Including：
Second carrier wave traverses submodule, for traversing the carrier wave of the spot beam of the satellite system；
Free timeslot number statistic submodule, for counting the free timeslot number of the carrier wave；
Second judgment submodule, for judging whether the free timeslot number is greater than or equal to the number of time slots
TsLen；
Second target carrier list generates submodule, for the carrier wave to be added in target carrier list.
Preferably, described device further includes：
Target carrier list judgment module, for judging whether the target carrier list is empty；
Failed message reminding module is distributed, for prompting resource allocation failed message；
Preferably, the prioritization module includes：
Power acquisition submodule, for obtaining first free timeslot of each carrier wave in the target carrier list in point
The power of all carrier waves of wave beam；
Second power and computational submodule, for using first free timeslot of each carrier wave in the institute of spot beam
Have the power of carrier wave, be calculated each carrier wave first free timeslot the second power and；
First sorting sub-module, for being ranked up second power and from small to large, obtain minimum power and；
The carrier wave determination sub-module of first highest priority, it is excellent for the minimum power and corresponding carrier wave to be determined as
The first highest carrier wave of grade.
Preferably, the prioritization module includes：
Free timeslot number acquisition submodule, for obtaining the free timeslot of each carrier wave in the target carrier list
Number；
Second sorting sub-module for the free timeslot number of each carrier wave to be sorted from big to small, obtains the maximum free time
Number of time slots；
The carrier wave determination sub-module of second highest priority, for the corresponding carrier wave of the maximum free timeslot number is true
It is set to the carrier wave of highest priority.
The embodiment of the present invention includes advantages below：
In the embodiment of the present invention, base station receives the solicited message of terminal；Channel type and time slot are determined according to solicited message
Number TsLen；Using channel type, number of time slots TsLen and default resource allocation mode, the spot beam of satellite system is traversed
All carrier waves generate target carrier list；Carrier wave in target carrier list is subjected to priority ranking according to preset rules, is obtained
To the carrier wave of highest priority；The carrier wave of highest priority is determined as target carrier；It is the terminal point in target carrier
With TsLen continuous slot, using the embodiment of the present invention, target carrier list can be generated according to default resource allocation mode,
And priority ranking is carried out to the carrier wave in target carrier list, the carrier wave of highest priority is obtained, by the load of highest priority
Wave is determined as target carrier, and time slot is distributed in target carrier, can realize the optimum distribution of satellite system resource.
Further, default resource allocation mode can be power mode of priority, can be limited in down transmitting power
The down transmitting power of satellite is effectively reduced in satellite system, reduces the interference between system in system, improves service quality
Experience with user.
Further, default resource allocation mode can be time slots priority pattern, can be in satellite system time interval resource ratio
When more in short supply, the business of more terminal users or more is accessed, improves the utilization rate of time slot.
Description of the drawings
Fig. 1 is a kind of step flow chart of the embodiment of the method for satellite system resource allocation of the present invention；
Fig. 2 is the flow chart of the satellite system resource allocation of the embodiment of the present invention；
Fig. 3 is a kind of structure diagram of the device embodiment of satellite system resource allocation of the present invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
With reference to Fig. 1, a kind of step flow chart of the embodiment of the method for satellite system resource allocation of the present invention is shown, it should
Method specifically may include steps of：
Step 101, the solicited message of terminal is received.
The solicited message of terminal can include the type of service of terminal request, such as speech business or audio and video business
Deng the information such as Qos (Quality of Service, service quality) of business can also be included.
Step 102, channel type and number of time slots TsLen are determined according to the solicited message.
After the solicited message for receiving terminal, it can determine to distribute to terminal channel type, Ke Yishi according to solicited message
DCH channels including DCH4 or DCH8, and then obtain the number of time slots TsLen that channel type needs distribute, such as DCH4 channels
Number of time slots is that the number of time slots of 4, DCH8 channels is 8.
Step 103, using the channel type, number of time slots TsLen and default resource allocation mode, the satellite is traversed
All carrier waves of the spot beam of system generate target carrier list.
In practical applications, communication channel needs carrier wave to be carried, and the spot beam of satellite system can have multiple carrier waves,
It after the channel type and number of time slots TsLen for being determined as terminal distribution, needs that corresponding carrier wave is selected to be carried, to carry out
Communication, in embodiments of the present invention, may be used using channel type, number of time slots TsLen and default resource allocation mode, time
All carrier waves of the spot beam of the satellite system are gone through, target carrier list is generated, can specifically include in the following manner：
In one preferred embodiment of the invention, default resource allocation mode can be power mode of priority, and power is excellent
The DCH time slots that first pattern can be allocated to terminal make the down transmitting power of entire spot beam minimum；The step 103, i.e.,
It is described to use the channel type, number of time slots TsLen and default resource allocation mode, traverse the spot beam of the satellite system
All carrier waves, generate target carrier list the step of can include following sub-step：
Sub-step 1031 traverses the carrier wave of the spot beam of the satellite system.
The spot beam of satellite system can have multiple carrier waves, need to carry out whether traversal carrier wave is that meet power preferential one by one
The carrier wave of pattern.
Sub-step 1032 when the channel of the carrier wave is the channel type, judges whether the carrier wave meets power
The corresponding distributive condition of mode of priority.
During carrier wave is traversed, it is first determined whether carrier wave has corresponding channel type, for example, terminal distribution
Channel type for DCH4, then when the carrier wave has DCH4 channels, judge whether the carrier wave meets power mode of priority correspondence
Distributive condition, can specifically include following sub-step：
Sub-step 1032-1 obtains TsLen continuous slot for including free timeslot starting point on the carrier wave；
Sub-step 1032-2 obtains each time slot of the TsLen continuous slot respectively in the work(of the carrier wave of spot beam
Rate；
Sub-step 1032-3, using each time slot respectively in the power of the carrier wave of spot beam, when being calculated each
Corresponding first power of gap and；
Sub-step 1032-4 judges the first power of each time slot and whether respectively less than or equal to preset maximum power；
Sub-step 1032-5 judges that the carrier wave meets the corresponding distributive condition of power mode of priority；
Sub-step 1032-6 obtains next TsLen continuous slot including free timeslot starting point on the carrier wave, and returns
It returns and obtains each time slot of the TsLen continuous slot respectively the power of the carrier wave of spot beam the step of.
For the carrier wave of selected traversal, it can obtain since first idle slot starting point of DCH channels and include sky
TsLen continuous slot of idle gap starting point, and each time slot of TsLen continuous slot is obtained respectively in the carrier wave of spot beam
Power；The power of each time slot can periodically be reported to gateway station by gateway station transceiver.Obtain power after, according to
Lower formula calculate the first power and：
Ptsi=Ptsi_Carrer1+Ptsi_Carrer2+Ptsi_Carrer3+Ptsi_CarrerN≤PMax_Cell
In formula, PtsiThe first power and P for one of time slot in TsLen continuous slottsi_CarrerNFor TsLen
One of time slot is in carrier wave 1, carrier wave 2, the power of carrier wave N, P in a continuous slotMax_CellFor preset maximum power, Ke Yishi
The maximum transmission power of spot beam.
If obtain TsLen continuous slot each time slot the first power and all meet above-mentioned formula, judge
The carrier wave meets the corresponding distributive condition of power mode of priority, otherwise, returns to sub-step 1032-1, continues to obtain under the carrier wave
One includes TsLen continuous slot of free timeslot starting point, until TsLen of free timeslot starting point all on the carrier wave connects
Continuous time slot all checked, when the TsLen continuous slot there are one free timeslot starting point on the carrier wave meets above-mentioned formula, then sentences
The fixed carrier wave meets the corresponding distributive condition of power mode of priority.
After current carrier traversal, if also carrier wave does not traverse, sub-step 1031 is returned, continues to traverse next carrier wave, directly
All carrier waves have traversed under to spot beam.
In order to which the embodiment of the present invention is better described, below to judging whether carrier wave meets corresponding point of power mode of priority
It is illustrated with condition.
Using DCH4 channels as example, starting time slots point is 0, then 0~time slot of time slot 3 belongs to the channel, time slot mark
For TS0, TS1, TS2, TS3；Assuming that spot beam there are 3 carrier waves, Carrer1, Carrer2, Carrer3 are identified as, when identifying each
Gap is as follows in the power of carrier wave：
TS0 is P in the power of carrier wave Carrer1, Carrer2, Carrer3ts0_Carrer1、Pts0_Carrer2、Pts0_Carrer3；
TS1 is P in the power of carrier wave Carrer1, Carrer2, Carrer3ts1_Carrer1、Pts1_Carrer2、Pts1_Carrer3；
TS2 is P in the power of carrier wave Carrer1, Carrer2, Carrer3ts2_Carrer1、Pts2_Carrer2、Pts2_Carrer3；
TS3 is P in the power of carrier wave Carrer1, Carrer2, Carrer3ts3_Carrer1、Pts3_Carrer2、Pts3_Carrer3；
Then calculate：
The first power of TS0 and：Pts0=Pts0_Carrer1+Pts0_Carrer2+Pts0_Carrer3
The first power of TS1 and：Pts1=Pts1_Carrer1+Pts1_Carrer2+Pts1_Carrer3
The first power of TS2 and：Pts2=Pts2_Carrer1+Pts2_Carrer2+Pts2_Carrer3
The first power of TS3 and：Pts3=Pts3_Carrer1+Pts3_Carrer2+Pts3_Carrer3
As the first power and Pts0、Pts1、Pts2、Pts3Both less than preset maximum power PMax_CellWhen, judge that the carrier wave meets
The corresponding distributive condition of power mode of priority.
It is above-mentioned to judge whether carrier wave meets the corresponding distributive condition mode of power mode of priority and be intended only as example, implementing
During the embodiment of the present invention, it can be judged that the embodiment of the present invention does not limit this using other manner according to actual conditions
System.
The carrier wave is added in target carrier list by sub-step 1033.
Above-mentioned sub-step 1031- sub-steps 1033 are default resource allocation mode when being power mode of priority, using channel
Type, number of time slots TsLen and default resource allocation mode traverse all carrier waves of the spot beam of satellite system, generate target
The embodiment of carrier list.
As another embodiment of the present invention, default resource allocation mode can be time slots priority pattern, time slots priority
Pattern can be allocated to the DCH time slots centralized distribution of terminal on one or more carrier waves；The step 103, i.e., it is described to adopt
With the channel type, number of time slots TsLen and default resource allocation mode, traverse the satellite system spot beam it is all
The step of carrier wave, generation target carrier list, can include following sub-step：
Sub-step 1034 traverses the carrier wave of the spot beam of the satellite system；
Sub-step 1035 counts the free timeslot number of the carrier wave；
Sub-step 1036, judges whether the free timeslot number is greater than or equal to the number of time slots TsLen；
The carrier wave is added in target carrier list by sub-step 1037.
During carrier wave is traversed, it is first determined whether carrier wave has corresponding channel type, for example, terminal distribution
Channel type be DCH4 when, need at least 4 continuous free timeslots on carrier wave, therefore, the free time on carrier wave can be counted
Number of time slots, when gap number is greater than or equal to number of time slots TsLen when idle, which is the load for meeting time slots priority pattern
The carrier wave is added in target carrier list by wave, otherwise, is returned to sub-step 1034, is continued to traverse next carrier wave, until point wave
All carrier waves have traversed under beam.
Above-mentioned sub-step 1034- sub-steps 1037 are default resource allocation mode when being time slots priority pattern, using channel
Type, number of time slots TsLen and default resource allocation mode traverse all carrier waves of the spot beam of satellite system, generate target
The embodiment of carrier list.
In one preferred embodiment of the invention, after target carrier list is generated, can also include：
Judge whether the target carrier list is empty；If so, prompting resource allocation failed message；
In the preferred embodiment, when according to time slots priority pattern or power mode of priority, after generating target carrier list,
If target carrier list is empty, it may be said that bright present satellites system load is high, and time slot is in short supply or power is excessively high, currently without
Suitable carrier wave, can be with prompt terminal resource allocation failed message.
Step 104, the carrier wave in the target carrier list is subjected to priority ranking according to preset rules, obtained preferential
The highest carrier wave of grade.
Carrier wave in target carrier list is the carrier wave for meeting power mode of priority or time slots priority pattern, can be incited somebody to action
Qualified carrier wave carries out priority ranking according to preset rules, obtains the carrier wave of highest priority, is according to allocation model
Power mode of priority or time slots priority pattern, preset rules are also different.
As a kind of embodiment of the present invention, when generating target carrier list according to power mode of priority, the step
104 can include following sub-step：
Sub-step 1041 obtains institute of first free timeslot in spot beam of each carrier wave in the target carrier list
There is the power of carrier wave；
Sub-step 1042, using each carrier wave first free timeslot spot beam all carrier waves power,
Be calculated first free timeslot of each carrier wave the second power and；
Sub-step 1043 is ranked up second power and from small to large, obtain minimum power and；
The minimum power and corresponding carrier wave are determined as the carrier wave of highest priority by sub-step 1044.
For the carrier wave in the target carrier list that is generated according to power mode of priority, the of each carrier wave can be first obtained
One free timeslot, and the power of first free timeslot of each carrier wave in all carrier waves of spot beam is obtained, then calculate
Second power of first free timeslot of each carrier wave and, be ranked up the second power and from small to large, it is possible to obtain
Minimum power and, minimum power and corresponding carrier wave are the carrier wave of highest priority.
As another embodiment of the present invention, when according to time slots priority schema creation target carrier list, the step
Rapid 104 can include following sub-step：
Sub-step 1045 obtains the free timeslot number of each carrier wave in the target carrier list；
Sub-step 1046 sorts the free timeslot number of each carrier wave from big to small, obtains maximum free timeslot number；
The corresponding carrier wave of the maximum free timeslot number is determined as the carrier wave of highest priority by sub-step 1047.
According to the carrier wave in the target carrier list of time slots priority schema creation, during the free time that can first obtain each carrier wave
Then the free timeslot number of each carrier wave is ranked up by gap number from big to small, it is possible to obtain maximum free timeslot
Number, the corresponding carrier wave of maximum free timeslot number are the carrier wave of highest priority.
Step 105, the carrier wave of the highest priority is determined as target carrier.
Step 106, in the target carrier it is described TsLen continuous slot of terminal distribution.
After the carrier wave of highest priority in target carrier list is determined as target carrier, can in the target carrier,
It is TsLen continuous slot of terminal distribution since first free timeslot.
The embodiment of the present invention receives the solicited message of terminal；Channel type and number of time slots are determined according to solicited message
TsLen；Using channel type, number of time slots TsLen and default resource allocation mode, traverse satellite system spot beam it is all
Carrier wave generates target carrier list；Carrier wave in target carrier list is subjected to priority ranking according to preset rules, is obtained excellent
The first highest carrier wave of grade；The carrier wave of highest priority is determined as target carrier；It is the terminal distribution in target carrier
TsLen continuous slot using the embodiment of the present invention, can generate target carrier list according to default resource allocation mode, and
Priority ranking is carried out to the carrier wave in target carrier list, the carrier wave of highest priority is obtained, by the carrier wave of highest priority
It is determined as target carrier, and time slot is distributed in target carrier, can realizes the optimum distribution of satellite system resource.
Further, default resource allocation mode can be power mode of priority, can be limited in down transmitting power
The down transmitting power of satellite is effectively reduced in satellite system, reduces the interference between system in system, improves service quality
Experience with user.
Further, default resource allocation mode can be time slots priority pattern, can be in satellite system time interval resource ratio
When more in short supply, the business of more terminal users or more is accessed, improves the utilization rate of time slot.
In order to which the embodiment of the present invention is better described, the embodiment of the present invention is illustrated with example below in conjunction with attached drawing 2.
As shown in Fig. 2, be satellite system resource allocation flow chart of the embodiment of the present invention, including：
S1 receives user's request；
S2 determines DCH channel types and number of time slots TsLen according to user's request；
S3, it is time slots priority pattern or power mode of priority to judge resource allocation mode；When resource allocation mode is
During gap mode of priority, S4-S8 is performed；When resource allocation mode is power mode of priority, S10-S19 is performed；
S4, judges whether the free timeslot number of carrier wave is greater than or equal to TsLen；If so, perform S5；If it is not, perform S6；
S5 adds in carrier wave in target carrier list；
S6, judges whether all carrier waves have stepped through；If so, S7 is performed, if it is not, returning to S4；
S7 judges whether target carrier list is empty, if so, S16 is performed, if it is not, performing S8；
S8, by the carrier wave in target carrier list according to free timeslot number according to sorting from big to small；Then it performs
S18-S19；
S10 according to the DCH channel types of distribution, determines the possibility start time point of DCH channels；
S11, since first idle starting point of DCH channels on carrier wave, calculate TsLen continuous slot it is each when
Gap all carrier waves power and；
S12 judges the power of TsLen continuous slot and meets power requirement；If so, S13 is performed, if it is not, performing
S14；
S13 adds in carrier wave in object listing；
S14, judges whether all carrier waves have stepped through；If so, S15 is performed, if it is not, returning to S11；
S15 judges whether target carrier list is empty, if so, S16 is performed, if it is not, performing S17；
S16 prompts resource allocation failed message；
S17, by the carrier wave in target carrier list according to the slot starting point of first free time DCH channel on carrier wave in institute
There are the power on carrier wave and sequence to be from small to large ranked up；
S18, using first carrier wave in the target carrier list after sequence as the target carrier of distribution；
S19, in determining target carrier since first free timeslot TsLen time slot of continuous dispensing.
Above-mentioned allocation flow is intended only as example, and should not be taken as the limitation of the present invention.
It should be noted that for embodiment of the method, in order to be briefly described, therefore it is all expressed as to a series of action group
It closes, but those skilled in the art should know, the embodiment of the present invention is not limited by described sequence of movement, because according to
According to the embodiment of the present invention, certain steps may be used other sequences or be carried out at the same time.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, and the involved action not necessarily present invention is implemented
Necessary to example.
With reference to Fig. 3, a kind of structure diagram of the device embodiment of satellite system resource allocation of the present invention is shown, specifically
It can include following module：
Request message receiving module 201, for receiving the solicited message of terminal；
Channel type and number of time slots determining module 202, for determining channel type and time slot according to the solicited message
Number TsLen；
Target carrier List Generating Module 203, for using the channel type, number of time slots TsLen and default resource
Allocation model traverses all carrier waves of the spot beam of the satellite system, generates target carrier list；
Prioritization module 204, for by the carrier wave in the target carrier list according to preset rules into row major
Grade sequence, obtains the carrier wave of highest priority；
Target carrier determining module 205, for the carrier wave of the highest priority to be determined as target carrier；
Time slot distribution module 206, for being described TsLen continuous slot of terminal distribution in the target carrier.
In an embodiment of the present invention, the default resource allocation mode includes power mode of priority, the target
Carrier list generation module 203 includes：
First carrier traverses submodule, for traversing the carrier wave of the spot beam of the satellite system；
First judging submodule, for when the channel of the carrier wave is the channel type, whether judging the carrier wave
Meet the corresponding distributive condition of power mode of priority；
First object carrier list generates submodule, for the carrier wave to be added in target carrier list.
Wherein, first judging submodule includes：
Time slot acquiring unit, for obtaining TsLen continuous slot for including free timeslot starting point on the carrier wave；
Power obtaining unit, for obtaining each time slot of the TsLen continuous slot respectively in the carrier wave of spot beam
Power；
First power and computing unit, for, respectively in the power of the carrier wave of spot beam, being calculated using each time slot
Obtain corresponding first power of each time slot and；
First power and judging unit, for judge the first power of each time slot and whether be respectively less than or equal to it is preset most
It is high-power；
Carrier wave identifying unit, for when the first power of each time slot and being respectively less than or during equal to preset maximum power, sentencing
The fixed carrier wave meets the corresponding distributive condition of power mode of priority；Otherwise, it obtains next including free timeslot on the carrier wave
TsLen continuous slot of starting point, and each time slot for obtaining the TsLen continuous slot is returned respectively in the load of spot beam
The step of power of wave.
In another embodiment of the invention, the default resource allocation mode includes time slots priority pattern, the target
Carrier list generation module 203 includes：
Second carrier wave traverses submodule, for traversing the carrier wave of the spot beam of the satellite system；
Free timeslot number statistic submodule, for counting the free timeslot number of the carrier wave；
Second judgment submodule, for judging whether the free timeslot number is greater than or equal to the number of time slots
TsLen；
Second target carrier list generates submodule, for the carrier wave to be added in target carrier list.
In one preferred embodiment of the invention, described device further includes：
Target carrier list judgment module, for judging whether the target carrier list is empty；
Failed message reminding module is distributed, for prompting resource allocation failed message；
In an embodiment of the present invention, the prioritization module 204 includes：
Power acquisition submodule, for obtaining first free timeslot of each carrier wave in the target carrier list in point
The power of all carrier waves of wave beam；
Second power and computational submodule, for using first free timeslot of each carrier wave in the institute of spot beam
Have the power of carrier wave, be calculated each carrier wave first free timeslot the second power and；
First sorting sub-module, for being ranked up second power and from small to large, obtain minimum power and；
The carrier wave determination sub-module of first highest priority, it is excellent for the minimum power and corresponding carrier wave to be determined as
The first highest carrier wave of grade.
In another embodiment of the invention, the prioritization module 204 includes：
Free timeslot number acquisition submodule, for obtaining the free timeslot of each carrier wave in the target carrier list
Number；
Second sorting sub-module for the free timeslot number of each carrier wave to be sorted from big to small, obtains the maximum free time
Number of time slots；
The carrier wave determination sub-module of second highest priority, for the corresponding carrier wave of the maximum free timeslot number is true
It is set to the carrier wave of highest priority.
For device embodiment, since it is basicly similar to embodiment of the method, so description is fairly simple, it is related
Part illustrates referring to the part of embodiment of the method.
Each embodiment in this specification is described by the way of progressive, the highlights of each of the examples are with
The difference of other embodiment, just to refer each other for identical similar part between each embodiment.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can be provided as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be with reference to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in flow and/or box combination.These can be provided
Computer program instructions are set to all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine so that is held by the processor of computer or other programmable data processing terminal equipments
Capable instruction generation is used to implement in one flow of flow chart or multiple flows and/or one box of block diagram or multiple boxes
The device for the function of specifying.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing terminal equipments
In the computer-readable memory to work in a specific way so that the instruction being stored in the computer-readable memory generates packet
The manufacture of command device is included, which realizes in one flow of flow chart or multiple flows and/or one side of block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing terminal equipments so that
Series of operation steps are performed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction offer performed on computer or other programmable terminal equipments is used to implement in one flow of flow chart or multiple flows
And/or specified in one box of block diagram or multiple boxes function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, those skilled in the art once know base
This creative concept can then make these embodiments other change and modification.So appended claims are intended to be construed to
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements are not only wrapped
Those elements are included, but also including other elements that are not explicitly listed or are further included as this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, it is wanted by what sentence "including a ..." limited
Element, it is not excluded that also there are other identical elements in the process including the element, method, article or terminal device.
Above to a kind of method and apparatus of satellite system resource allocation provided by the present invention, it is described in detail,
Specific case used herein is expounded the principle of the present invention and embodiment, and the explanation of above example is only used
In facilitating the understanding of the method and its core concept of the invention；Meanwhile for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in specific embodiments and applications, in conclusion the content of the present specification should not be construed as
Limitation of the present invention.
Claims (14)
- A kind of 1. method of satellite system resource allocation, which is characterized in that the method includes：Receive the solicited message of terminal；Channel type and number of time slots TsLen are determined according to the solicited message；Using the channel type, number of time slots TsLen and default resource allocation mode, the spot beam of the satellite system is traversed All carrier waves, generate target carrier list；Carrier wave in the target carrier list is subjected to priority ranking according to preset rules, obtains the load of highest priority Wave；The carrier wave of the highest priority is determined as target carrier；It is described TsLen continuous slot of terminal distribution in the target carrier.
- 2. according to the method described in claim 1, it is characterized in that, the default resource allocation mode includes the preferential mould of power Formula, it is described using the channel type, number of time slots TsLen and default resource allocation mode, traverse the point of the satellite system The step of all carrier waves of wave beam, generation target carrier list, includes：Traverse the carrier wave of the spot beam of the satellite system；When the channel of the carrier wave is the channel type, judge whether the carrier wave meets corresponding point of power mode of priority With condition；If so, the carrier wave is added in target carrier list.
- It is 3. according to the method described in claim 2, it is characterized in that, described when the channel of the carrier wave is the channel type When, judge that the step of whether carrier wave meets power mode of priority corresponding distributive condition includes：Obtain TsLen continuous slot for including free timeslot starting point on the carrier wave；Each time slot of the TsLen continuous slot is obtained respectively in the power of the carrier wave of spot beam；Using each time slot respectively in the power of the carrier wave of spot beam, corresponding first power of each time slot is calculated With；Judge the first power of each time slot and whether respectively less than or equal to preset maximum power；If so, judge that the carrier wave meets the corresponding distributive condition of power mode of priority；If it is not, then obtaining next TsLen continuous slot including free timeslot starting point on the carrier wave, and return described in acquisition Each time slot of TsLen continuous slot is respectively the power of the carrier wave of spot beam the step of.
- 4. according to the method described in claim 1, it is characterized in that, the default resource allocation mode includes time slots priority mould Formula, it is described using the channel type, number of time slots TsLen and default resource allocation mode, traverse the point of the satellite system The step of all carrier waves of wave beam, generation target carrier list, includes：Traverse the carrier wave of the spot beam of the satellite system；Count the free timeslot number of the carrier wave；Judge whether the free timeslot number is greater than or equal to the number of time slots TsLen；If so, the carrier wave is added in target carrier list.
- 5. the method according to claim 2 or 4, which is characterized in that described using the channel type, number of time slots TsLen and default resource allocation mode traverse all carrier waves of the spot beam of the satellite system, generation target carrier list After step, further include：Judge whether the target carrier list is empty；If so, prompting resource allocation failed message.
- 6. according to the method described in claim 2, it is characterized in that, the carrier wave by the target carrier list is according to pre- If rule carries out priority ranking, the step of obtaining the carrier wave of highest priority, includes：Obtain the power of first free timeslot of each carrier wave in the target carrier list in all carrier waves of spot beam；Using each carrier wave first free timeslot spot beam all carrier waves power, each carrier wave is calculated First free timeslot the second power and；Be ranked up second power and from small to large, obtain minimum power and；The minimum power and corresponding carrier wave are determined as to the carrier wave of highest priority.
- 7. according to the method described in claim 4, it is characterized in that, the carrier wave by the target carrier list is according to pre- If rule carries out priority ranking, the step of obtaining the carrier wave of highest priority, includes：Obtain the free timeslot number of each carrier wave in the target carrier list；The free timeslot number of each carrier wave is sorted from big to small, obtains maximum free timeslot number；The corresponding carrier wave of the maximum free timeslot number is determined as to the carrier wave of highest priority.
- 8. a kind of device of satellite system resource allocation, which is characterized in that described device includes：Request message receiving module, for receiving the solicited message of terminal；Channel type and number of time slots determining module, for determining channel type and number of time slots according to the solicited message TsLen；Target carrier List Generating Module, for using the channel type, number of time slots TsLen and default resource allocation mould Formula traverses all carrier waves of the spot beam of the satellite system, generates target carrier list；Prioritization module, for the carrier wave in the target carrier list to be carried out priority ranking according to preset rules, Obtain the carrier wave of highest priority；Target carrier determining module, for the carrier wave of the highest priority to be determined as target carrier；Time slot distribution module, for being described TsLen continuous slot of terminal distribution in the target carrier.
- 9. the apparatus according to claim 1, which is characterized in that the default resource allocation mode includes the preferential mould of power Formula, the target carrier List Generating Module include：First carrier traverses submodule, for traversing the carrier wave of the spot beam of the satellite system；First judging submodule, for when the channel of the carrier wave is the channel type, judging whether the carrier wave meets The corresponding distributive condition of power mode of priority；First object carrier list generates submodule, for the carrier wave to be added in target carrier list.
- 10. device according to claim 9, which is characterized in that first judging submodule includes：Time slot acquiring unit, for obtaining TsLen continuous slot for including free timeslot starting point on the carrier wave；Power obtaining unit, for obtaining each time slot of the TsLen continuous slot respectively in the work(of the carrier wave of spot beam Rate；First power and computing unit, for, respectively in the power of the carrier wave of spot beam, being calculated using each time slot Corresponding first power of each time slot and；First power and judging unit, for judge the first power of each time slot and whether be respectively less than or equal to preset maximum work Rate；Carrier wave identifying unit, for when the first power of each time slot and being respectively less than or during equal to preset maximum power, judging institute It states carrier wave and meets the corresponding distributive condition of power mode of priority；Otherwise, it obtains next including free timeslot starting point on the carrier wave TsLen continuous slot, and return to each time slot for obtaining the TsLen continuous slot respectively in the carrier wave of spot beam The step of power.
- 11. device according to claim 8, which is characterized in that the default resource allocation mode includes time slots priority mould Formula, the target carrier List Generating Module include：Second carrier wave traverses submodule, for traversing the carrier wave of the spot beam of the satellite system；Free timeslot number statistic submodule, for counting the free timeslot number of the carrier wave；Second judgment submodule, for judging whether the free timeslot number is greater than or equal to the number of time slots TsLen；Second target carrier list generates submodule, for the carrier wave to be added in target carrier list.
- 12. the device according to claim 9 or 11, which is characterized in that described device further includes：Target carrier list judgment module, for judging whether the target carrier list is empty；Failed message reminding module is distributed, for prompting resource allocation failed message.
- 13. device according to claim 9, which is characterized in that the prioritization module includes：Power acquisition submodule, for obtaining first free timeslot of each carrier wave in the target carrier list in spot beam All carrier waves power；Second power and computational submodule, for using first free timeslot of each carrier wave in all loads of spot beam The power of wave, be calculated each carrier wave first free timeslot the second power and；First sorting sub-module, for being ranked up second power and from small to large, obtain minimum power and；The carrier wave determination sub-module of first highest priority, for the minimum power and corresponding carrier wave to be determined as priority Highest carrier wave.
- 14. according to the devices described in claim 11, which is characterized in that the prioritization module includes：Free timeslot number acquisition submodule, for obtaining the free timeslot number of each carrier wave in the target carrier list；Second sorting sub-module for the free timeslot number of each carrier wave to be sorted from big to small, obtains maximum free timeslot Number；The carrier wave determination sub-module of second highest priority, for the corresponding carrier wave of the maximum free timeslot number to be determined as The carrier wave of highest priority.
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| CN109862584A (en) * | 2018-12-30 | 2019-06-07 | 中国科学院软件研究所 | Power resource allocation method and multi-beam satellite communication system using the same |
| CN110504987A (en) * | 2019-07-30 | 2019-11-26 | 北京大学 | A resource allocation and access method in an open wireless channel |
| CN112311444A (en) * | 2020-10-20 | 2021-02-02 | 陕西航天技术应用研究院有限公司 | Multi-dimensional satellite communication resource dynamic scheduling method, device and system |
| CN115226228A (en) * | 2022-08-30 | 2022-10-21 | 成都星联芯通科技有限公司 | Time slot allocation method, time slot allocation device, master station equipment and storage medium |
| CN119364532A (en) * | 2024-12-24 | 2025-01-24 | 中国人民解放军63921部队 | Beam-hopping uplink resource allocation method for low-orbit constellation system based on ground position |
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| CN119364532A (en) * | 2024-12-24 | 2025-01-24 | 中国人民解放军63921部队 | Beam-hopping uplink resource allocation method for low-orbit constellation system based on ground position |
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| CN108243498B (en) | 2020-12-04 |
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