CN109561509A - A kind of method and device of the reversed resource allocation of wireless telecommunication system - Google Patents
A kind of method and device of the reversed resource allocation of wireless telecommunication system Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000013468 resource allocation Methods 0.000 title claims abstract description 40
- 238000004891 communication Methods 0.000 claims abstract description 54
- 230000005055 memory storage Effects 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 abstract description 31
- 230000010354 integration Effects 0.000 abstract description 7
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- 238000005516 engineering process Methods 0.000 description 2
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- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
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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
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18578—Satellite systems for providing broadband data service to individual earth stations
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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
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality 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
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Abstract
The invention discloses a kind of method and device of the reversed resource allocation of wireless telecommunication system, method packet: the signal-to-noise ratio of destination channel signal-to-noise ratio section affiliated in reverse link communication SNR ranges is determined；Wherein, reverse link communication SNR ranges include at least two signal-to-noise ratio sections, and each signal-to-noise ratio section corresponds to different signal-to-noise ratio；According to the difference in affiliated signal-to-noise ratio section, corresponding reversed resource is distributed for destination channel；Method, apparatus of the invention, effectively avoid because current Satellite Communication System is big to signal cover, covering diversity, frequency spectrum resource is rare the features such as caused by do not have effectively to control the application of the reversed resource of Broadband Satellite, to realize system resource integration and operation cost and operation diversification application, improve system spectrum utilization rate, it realizes that bandwidth spectrum utilization rate is controllable, can effectively improve QoS of customer.
Description
Technical field
The present invention relates to satellite communication and wireless mobile telecommunication technology field more particularly to a kind of wireless telecommunication system are anti-
To the method and device of resource allocation.
Background technique
In Satellite Communication System DVB-RCS2 standard agreement, forward direction uses TDM (Time Division Multiplexed
Time division multiplexing) transmission, reversely use MF-TDMA (Multi frequency-Time Division Multiple Access)
Transmission reversely supports Adaptive Modulation and Coding, the reversed signal-to-noise ratio of access network side measurement access terminal to select further according to signal-to-noise ratio
Corresponding modulation coding scheme is selected to be scheduled.When access network side selectes modulating-coding by the reversed signal-to-noise ratio of access terminal
After mode, guarantee source rates (Guarantee Bit Rate) and maximum further according to the guarantee bit rate of access terminal configuration
Bit rate MBR (Max Bit Rate) carries out bandwidth resource allocation.
When having multiple access terminals under Satellite Communication System, and the reversed signal-to-noise ratio of access terminal is because of the hardware of terminal
Coverage difference where capacity of equipment or terminal, reversed signal-to-noise ratio is different, and corresponding modulation coding scheme is also just different
Sample, therefore the inverse frequency spectrum efficiency of each access terminal is different, so reversed resource allocation methods described above are to system reverse
Frequency spectrum resource application has the following problems:
The low problem of bandwidth resources utilization rate: such as system reverse bandwidth 1MHz, there is 2 equal priority access terminal services,
Reversed to guarantee that source rates are sufficiently large, the reversed signal-to-noise ratio of priority Proportional Fair, access terminal A is 13db, selection
8PSK modulation and 3/4 code rate, spectrum efficiency is 2.25, and the reversed signal-to-noise ratio of access terminal B is 3db, selects 4 times of spread spectrum QPSK tune
System and 3/4 code rate, spectrum efficiency is 0.375, then its average spectral efficiency (ase) is (2.25+0.375)/2=1.312, is both
System total bandwidth rate only has 1.312Mbps/s, when the end station access system for having more reversed signal-to-noise ratio low services, overall system
Wide rate will be lower, seriously affects the availability of frequency spectrum.
The uncontrollable problem of bandwidth resource allocation: such as system reverse bandwidth 1MHz, there are 2 different priorities access terminal clothes
Business, reversed to guarantee that source rates are all 2Mbps/s, priority Proportional Fair, access terminal A priority is low, reversed noise
Than being 13db, 8PSK modulation and 3/4 code rate are selected, spectrum efficiency is 2.25, and access terminal B priority is high, reversed signal-to-noise ratio
It is 3db, selects 4 times of spread spectrum QPSK modulation and 3/4 code rate, spectrum efficiency is 0.375, according to priority scheduling principle, system
It can first be serviced to the access terminal B of high priority, so system spectral efficiency is 0.375, both overall system bandwidth rates
0.375Mbps/s, because the signal-to-noise ratio of access terminal is related to the geographical location that place satellite-signal covers to device hardware, institute
Not control resource allocation effectively, cause frequency spectrum resource using unreasonable.
In conclusion Satellite Communication System is big to signal cover, covering diversity, the features such as frequency spectrum resource is rare,
Without effectively controlling the application of the reversed resource in satellite system broadband, lead to that the system reverse availability of frequency spectrum is low, bandwidth resources are sharp
The problems such as poor with unbalanced uncontrollable and QoS of customer.
Summary of the invention
It is a primary object of the present invention to propose the method and dress of a kind of reversed resource allocation of wireless telecommunication system
It sets, it is intended to solve the integration for not accounting for whole system resource in the prior art and operation cost and run polynary
The application of change, leads to that the system reverse availability of frequency spectrum is low, bandwidth resources are poor using unbalanced uncontrollable and QoS of customer
The problems such as,.
According to an aspect of the invention, there is provided a kind of method of the reversed resource allocation of wireless telecommunication system, the side
Method includes:
Determine the signal-to-noise ratio of destination channel signal-to-noise ratio section affiliated in reverse link communication SNR ranges；Wherein, described
Reverse link communication SNR ranges include at least two signal-to-noise ratio sections, and each signal-to-noise ratio section corresponds to different noises
Than；According to the difference in affiliated signal-to-noise ratio section, corresponding reversed resource is distributed for the destination channel.
Optionally, each signal-to-noise ratio section corresponds to the first different weight factors；The noise according to belonging to
It include: corresponding according to affiliated signal-to-noise ratio section for the corresponding reversed resource of destination channel distribution than the difference in section
The size of first weight factor distributes corresponding reversed resource for the destination channel.
Optionally, the size of corresponding first weight factor in the signal-to-noise ratio section according to belonging to is believed for the target
Road distributes corresponding reversed resource, further includes: the access terminal number in the signal-to-noise ratio section belonging to obtaining is in all signal-to-noise ratio sections
Access terminal number in access ratio；According to the access ratio and first weight factor, for the destination channel point
With corresponding reversed resource.
Optionally, first weight factor is the resource accounting weight in the affiliated signal-to-noise ratio section.
Optionally, each access terminal in each signal-to-noise ratio section corresponds to the second different weight factors；The basis
The difference in affiliated signal-to-noise ratio section includes: according to affiliated signal-to-noise ratio for the corresponding reversed resource of destination channel distribution
The size of corresponding second weight factor of each access terminal in section distributes corresponding reversed resource for the destination channel.
Optionally, according to the size of corresponding second weight factor of each access terminal in affiliated signal-to-noise ratio section, it is
The destination channel distributes corresponding reversed resource, further includes: using second weight factor to affiliated signal-to-noise ratio section
In each access terminal guarantee that source rates are modified；It is that destination channel distribution is corresponding according to the correction result
Reversed resource.
Optionally, second weight factor is the guarantee source rates of each access terminal in affiliated signal-to-noise ratio section
Efficiency weight.
Optionally, the difference in the signal-to-noise ratio section according to belonging to, for the corresponding reversed money of destination channel distribution
It is the corresponding reversed money of destination channel distribution that source, which includes: according to the priority of the access terminal in affiliated signal-to-noise ratio section,
Source.
Optionally, the signal-to-noise ratio of determining destination channel signal-to-noise ratio section affiliated in reverse link communication SNR ranges
Before, further includes: in the case where the load of reversed resource allocation is more than preset threshold, the size according to signal-to-noise ratio is reverse link communication
Divide at least two reversed signal-to-noise ratio sections.
Optionally, the preset threshold is 80%.
According to the second aspect of the invention, a kind of device of reversed resource allocation of wireless telecommunication system is provided, it is described
Device comprises determining that module, for determining the signal-to-noise ratio of destination channel signal-to-noise ratio affiliated in reverse link communication SNR ranges
Section；Wherein, the reverse link communication SNR ranges include at least two signal-to-noise ratio sections, each signal-to-noise ratio section pair
Answer different signal-to-noise ratio；Distribution module is corresponding for destination channel distribution for the difference according to affiliated signal-to-noise ratio section
Reversed resource.
Optionally, each signal-to-noise ratio section corresponds to the first different weight factors；The distribution module includes: one
Sub-module distributes phase for the size according to affiliated corresponding first weight factor in signal-to-noise ratio section for the destination channel
The reversed resource answered.
Optionally, a sub-module, further includes: obtain module, the access for obtaining affiliated signal-to-noise ratio section is whole
Hold access ratio of the number in the access terminal number in all signal-to-noise ratio sections；Two sub-modules, for according to the access ratio and
First weight factor distributes corresponding reversed resource for the destination channel.
Optionally, first weight factor is the resource accounting weight in the affiliated signal-to-noise ratio section.
Optionally, each access terminal in each signal-to-noise ratio section corresponds to the second different weight factors；The distribution
Module includes: three sub-modules, for according to corresponding second weight factor of each access terminal in affiliated signal-to-noise ratio section
Size distributes corresponding reversed resource for the destination channel.
Optionally, according to three sub-modules, further includes: correction module, for utilizing second weight factor to affiliated
Each access terminal in signal-to-noise ratio section guarantees that source rates are modified；Four sub-modules, for according to the correction result
Corresponding reversed resource is distributed for the destination channel.
Optionally, second weight factor is the guarantee source rates of each access terminal in affiliated signal-to-noise ratio section
Efficiency weight.
Optionally, it is institute that the distribution module, which includes: according to the priority of the access terminal in affiliated signal-to-noise ratio section,
It states destination channel and distributes corresponding reversed resource.
Optionally, before the determining module, further includes: preposition module, for being more than pre- in the load of reversed resource allocation
If in the case where threshold value, the size according to signal-to-noise ratio is that reverse link communication divides at least two reversed signal-to-noise ratio sections.
Optionally, the preset threshold is 80%.
According to the third aspect of the present invention, a kind of computer equipment is provided, which is characterized in that including processor and deposit
Reservoir；The memory refers to for storing computer instruction, the computer that the processor is used to run the memory storage
It enables, the method to realize the reversed resource allocation of above-mentioned wireless telecommunication system.
The described method includes: determining the signal-to-noise ratio of destination channel signal-to-noise ratio area affiliated in reverse link communication SNR ranges
Between；Wherein, the reverse link communication SNR ranges include at least two signal-to-noise ratio sections, and each signal-to-noise ratio section is corresponding
Different signal-to-noise ratio；According to the difference in affiliated signal-to-noise ratio section, corresponding reversed resource is distributed for the destination channel.
Optionally, each signal-to-noise ratio section corresponds to the first different weight factors；The noise according to belonging to
It include: corresponding according to affiliated signal-to-noise ratio section for the corresponding reversed resource of destination channel distribution than the difference in section
The size of first weight factor distributes corresponding reversed resource for the destination channel.
Optionally, the size of corresponding first weight factor in the signal-to-noise ratio section according to belonging to is believed for the target
Road distributes corresponding reversed resource, further includes: the access terminal number in the signal-to-noise ratio section belonging to obtaining is in all signal-to-noise ratio sections
Access terminal number in access ratio；According to the access ratio and first weight factor, for the destination channel point
With corresponding reversed resource.
Optionally, first weight factor is the resource accounting weight in the affiliated signal-to-noise ratio section.
Optionally, each access terminal in each signal-to-noise ratio section corresponds to the second different weight factors；The basis
The difference in affiliated signal-to-noise ratio section includes: according to affiliated signal-to-noise ratio for the corresponding reversed resource of destination channel distribution
The size of corresponding second weight factor of each access terminal in section distributes corresponding reversed resource for the destination channel.
Optionally, according to the size of corresponding second weight factor of each access terminal in affiliated signal-to-noise ratio section, it is
The destination channel distributes corresponding reversed resource, further includes: using second weight factor to affiliated signal-to-noise ratio section
In each access terminal guarantee that source rates are modified；It is that destination channel distribution is corresponding according to the correction result
Reversed resource.
Optionally, second weight factor is the guarantee source rates of each access terminal in affiliated signal-to-noise ratio section
Efficiency weight.
Optionally, the difference in the signal-to-noise ratio section according to belonging to, for the corresponding reversed money of destination channel distribution
It is the corresponding reversed money of destination channel distribution that source, which includes: according to the priority of the access terminal in affiliated signal-to-noise ratio section,
Source.
Optionally, the signal-to-noise ratio of determining destination channel signal-to-noise ratio section affiliated in reverse link communication SNR ranges
Before, further includes: in the case where the load of reversed resource allocation is more than preset threshold, the size according to signal-to-noise ratio is reverse link communication
Divide at least two reversed signal-to-noise ratio sections.
Optionally, the preset threshold is 80%.
According to the fourth aspect of the present invention, a kind of computer readable storage medium is provided, which is characterized in that the meter
Calculation machine readable storage medium storing program for executing is stored with one or more program, and one or more of programs can be by one or more
It manages device to execute, the method to realize the reversed resource allocation of above-mentioned wireless telecommunication system.
The described method includes: determining the signal-to-noise ratio of destination channel signal-to-noise ratio area affiliated in reverse link communication SNR ranges
Between；Wherein, the reverse link communication SNR ranges include at least two signal-to-noise ratio sections, and each signal-to-noise ratio section is corresponding
Different signal-to-noise ratio；According to the difference in affiliated signal-to-noise ratio section, corresponding reversed resource is distributed for the destination channel.
Optionally, each signal-to-noise ratio section corresponds to the first different weight factors；The noise according to belonging to
It include: corresponding according to affiliated signal-to-noise ratio section for the corresponding reversed resource of destination channel distribution than the difference in section
The size of first weight factor distributes corresponding reversed resource for the destination channel.
Optionally, the size of corresponding first weight factor in the signal-to-noise ratio section according to belonging to is believed for the target
Road distributes corresponding reversed resource, further includes: the access terminal number in the signal-to-noise ratio section belonging to obtaining is in all signal-to-noise ratio sections
Access terminal number in access ratio；According to the access ratio and first weight factor, for the destination channel point
With corresponding reversed resource.
Optionally, first weight factor is the resource accounting weight in the affiliated signal-to-noise ratio section.
Optionally, each access terminal in each signal-to-noise ratio section corresponds to the second different weight factors；The basis
The difference in affiliated signal-to-noise ratio section includes: according to affiliated signal-to-noise ratio for the corresponding reversed resource of destination channel distribution
The size of corresponding second weight factor of each access terminal in section distributes corresponding reversed resource for the destination channel.
Optionally, according to the size of corresponding second weight factor of each access terminal in affiliated signal-to-noise ratio section, it is
The destination channel distributes corresponding reversed resource, further includes: using second weight factor to affiliated signal-to-noise ratio section
In each access terminal guarantee that source rates are modified；It is that destination channel distribution is corresponding according to the correction result
Reversed resource.
Optionally, second weight factor is the guarantee source rates of each access terminal in affiliated signal-to-noise ratio section
Efficiency weight.
Optionally, the difference in the signal-to-noise ratio section according to belonging to, for the corresponding reversed money of destination channel distribution
It is the corresponding reversed money of destination channel distribution that source, which includes: according to the priority of the access terminal in affiliated signal-to-noise ratio section,
Source.
Optionally, the signal-to-noise ratio of determining destination channel signal-to-noise ratio section affiliated in reverse link communication SNR ranges
Before, further includes: in the case where the load of reversed resource allocation is more than preset threshold, the size according to signal-to-noise ratio is reverse link communication
Divide at least two reversed signal-to-noise ratio sections.
Optionally, the preset threshold is 80%.
The present invention has the beneficial effect that: a kind of reversed resource allocation of wireless telecommunication system provided by the embodiment of the present invention
Method and device is avoided because current Satellite Communication System is big to signal cover, covering multiplicity by adopting the above technical scheme
Do not have effectively to control the application of the reversed resource of Broadband Satellite caused by property, the features such as frequency spectrum resource is rare, to realize
The integration of system resource and operation cost and operation diversification application, improve system spectrum utilization rate, realize bandwidth spectrum benefit
It is controllable with rate, it can effectively improve QoS of customer.
Detailed description of the invention
Fig. 1 is the flow diagram of first embodiment of the invention；
Fig. 2 is the flow diagram that Satellite communication system of the present invention accesses network side resource allocation；
Fig. 3 is the flow diagram of second embodiment of the invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In subsequent description, it is only using the suffix for indicating such as " module ", " component " or " unit " of element
Be conducive to explanation of the invention, itself there is no a specific meaning.Therefore, " module ", " component " or " unit " can mix
Ground uses.
Embodiment to facilitate the understanding of the present invention, a kind of wireless telecommunication system provided first embodiment of the invention are reversed
The method of resource allocation.
First embodiment:
Fig. 1 is the flow diagram of the present embodiment.According to Fig. 1, first embodiment of the invention provides a kind of channel radio
The method for interrogating system reverse resource allocation, which comprises
Determine the signal-to-noise ratio of destination channel signal-to-noise ratio section affiliated in reverse link communication SNR ranges；Wherein, described
Reverse link communication SNR ranges include at least two signal-to-noise ratio sections, and each signal-to-noise ratio section corresponds to different noises
Than；
According to the difference in affiliated signal-to-noise ratio section, corresponding reversed resource is distributed for the destination channel.
By adopting the above technical scheme, avoid because current Satellite Communication System is big to signal cover, covering diversity,
Do not have effectively to control the application of the reversed resource of Broadband Satellite caused by the features such as frequency spectrum resource is rare, to realize system
The integration of resource and operation cost and operation diversification application, improve system spectrum utilization rate, realize bandwidth spectrum utilization rate
Controllably, it can effectively improve QoS of customer.
Specifically, a kind of method for the reversed resource allocation of wireless telecommunication system that first embodiment of the invention provides, base
In access network side, and method provided by the invention is also applied for the reversed resource allocation of Satellite Communication System, specifically includes:
S1: the signal-to-noise ratio of destination channel signal-to-noise ratio section affiliated in reverse link communication SNR ranges is determined；Wherein, institute
Stating reverse link communication SNR ranges includes at least two signal-to-noise ratio sections, and each signal-to-noise ratio section corresponds to different noises
Than.
Need first to determine the noise of destination channel when reverse link communication SNR ranges, wherein the reverse link communication noise
It include at least two signal-to-noise ratio sections than range, each signal-to-noise ratio section corresponds to different signal-to-noise ratio.Target is determined again
Reversed SNR ranges locating for the signal-to-noise ratio of channel determine signal-to-noise ratio section locating for the signal-to-noise ratio of destination channel with this.
S2: according to the difference in affiliated signal-to-noise ratio section, corresponding reversed resource is distributed for the destination channel.
By adopting the above technical scheme, avoid because current Satellite Communication System is big to signal cover, covering diversity,
Do not have effectively to control the application of the reversed resource of Broadband Satellite caused by the features such as frequency spectrum resource is rare, to realize system
The integration of resource and operation cost and operation diversification application, improve system spectrum utilization rate, realize bandwidth spectrum utilization rate
Controllably, it can effectively improve QoS of customer.
Optionally, each signal-to-noise ratio section corresponds to the first different weight factors；The noise according to belonging to
It include: corresponding according to affiliated signal-to-noise ratio section for the corresponding reversed resource of destination channel distribution than the difference in section
The size of first weight factor distributes corresponding reversed resource for the destination channel.
In the present embodiment, the exemplary resource for being set as the signal-to-noise ratio section belonging to it of the first weight factor accounts for
Compare weight.But the first weight factor is not defined in the present embodiment, it only needs it to meet requirement of the invention and belongs to
In protection scope of the present invention.So the program is by configuring different resource accounting weights for each signal-to-noise ratio section, so
It is afterwards that destination channel distributes corresponding reversed resource according to the size of the resource accounting weight in each signal-to-noise ratio section.In addition, every
The configuration of the resource accounting weight in a signal-to-noise ratio section is configured according to the size in signal-to-noise ratio section.
Optionally, the size of corresponding first weight factor in the above-mentioned signal-to-noise ratio section according to belonging to is believed for the target
Road distributes corresponding reversed resource, further includes: the access terminal number in the signal-to-noise ratio section belonging to obtaining is in all signal-to-noise ratio sections
Access terminal number in access ratio；I.e. periodic statistics count the access terminal number in each signal-to-noise ratio section, so
This is obtained afterwards to the sum of the access terminal number in all signal-to-noise ratio sections, thus the access terminal number in the signal-to-noise ratio section belonging to obtaining
Access ratio in the access terminal number in all signal-to-noise ratio sections.Then, according to the access ratio and first weight
The factor distributes corresponding reversed resource for the destination channel.Obtained according to the access ratio and the resource accounting weight
Guarantee resource accounting to minimum, relying on the minimum guarantee resource accounting is that the destination channel distributes corresponding reversed resource.
The minimum formula for guaranteeing resource accounting are as follows:
Minimum guarantee resource accounting=signal-to-noise ratio section access terminal number/all signal-to-noise ratio section access terminal number it
With * resource accounting weight.
In the present embodiment, not to how using the access ratio and first weight factor being embodied as the mesh
The mode of mark channel distribution reversed resource accordingly is defined, and is only needed it to meet requirement of the invention and is belonged to guarantor of the invention
Protect range.
Optionally, each access terminal in each signal-to-noise ratio section corresponds to the second different weight factors；The basis
The difference in affiliated signal-to-noise ratio section includes: according to affiliated signal-to-noise ratio for the corresponding reversed resource of destination channel distribution
The size of corresponding second weight factor of each access terminal in section distributes corresponding reversed resource for the destination channel.
In the present embodiment, the second weight silver it is exemplary be set as belonging to signal-to-noise ratio section in each access terminal
Guarantee source rates efficiency weight.But the second weight factor is not defined in the present embodiment, only need its satisfaction
Requirement of the invention belongs to the scope of protection of the present invention.So the program is by respectively connecing in the signal-to-noise ratio section for belonging to
The guarantee source rates efficiency weight for entering terminal, then according to the guarantee resource of each access terminal in affiliated signal-to-noise ratio section
The size of rate efficiency weight distributes corresponding reversed resource for the destination channel.In addition, in affiliated signal-to-noise ratio section
Size and/or each signal-to-noise ratio section of the configuration of the guarantee source rates efficiency weight of each access terminal according to signal-to-noise ratio section
Size minimum guarantee resource accounting configured.
Optionally, according to the size of corresponding second weight factor of each access terminal in affiliated signal-to-noise ratio section, it is
The destination channel distributes corresponding reversed resource, further includes: using second weight factor to affiliated signal-to-noise ratio section
In each access terminal guarantee that source rates are modified；I.e. by for each access terminal in each signal-to-noise ratio section
Configuration guarantees source rates efficiency weight, then using the guarantee source rates efficiency weight to the configured guarantor of access terminal institute
Card source rates (the guarantee source rates of each access terminal in above-mentioned affiliated signal-to-noise ratio section) is modified, to obtain
The real-time ensuring source rates weight of each access terminal in each signal-to-noise ratio section, specifically, according to the following formula with
It obtains each: real-time ensuring bit rate=guarantee bit rate efficiency weight * configuration guarantee bit rate.
In the present embodiment, the guarantee for how utilizing each access terminal in the affiliated signal-to-noise ratio section is not provided
The mode that source rate efficiency weight is embodied as the corresponding reversed resource of the destination channel distribution is defined, it is only needed to meet this
The requirement of invention belongs to the scope of protection of the present invention.
Optionally, the difference in the signal-to-noise ratio section according to belonging to, for the corresponding reversed money of destination channel distribution
It is the corresponding reversed money of destination channel distribution that source, which includes: according to the priority of the access terminal in affiliated signal-to-noise ratio section,
Source.
In the present embodiment, can optionally above-mentioned the first weight factor, the second weight factor and access terminal it is preferential
At least one of grade is defined, and is that the destination channel distributes corresponding reversed resource to complete.
Optionally, needing to be arranged access network side reversed resource intelligent distribution load startup threshold is arranged is preset threshold,
In the present embodiment, exemplary setting preset threshold is 80%, still, is not defined to the size of preset threshold,
The requirement for only needing it to be able to satisfy the present embodiment belongs to the scope of protection of the present invention.It is greater than in system reverse resource allocation load pre-
It if in the case where threshold value, just distributing control model automatically into reversed resource intelligent, i.e., is reversed logical according to the size of signal-to-noise ratio
Letter divides at least two reversed signal-to-noise ratio sections.
For the technical solution of the present invention is further explained first embodiment, in conjunction with the following contents to the technology of first embodiment
Scheme is illustrated.
Firstly, accessing network side by Satellite Communication System is arranged reversed resource intelligent distribution load startup threshold
LoadThreshold, it is more than that reversed resource intelligence is arranged in access network side that reversed resource intelligent distribution load, which is arranged, in access network side
When can distribute load startup threshold loadThreshold, signal-to-noise ratio section is just divided from small to large according to signal-to-noise ratio
SNIRRange-1, SNIRRange-2, SNIRRange-N, herein, N is natural number more than or equal to 1.And
And corresponding resource accounting weight SNIRRangeFactor-1, SNIRRangeFactor- in each signal-to-noise ratio section of setting
2, the guarantee bit rate in SNIRRangeFactor-N and each signal-to-noise ratio section guarantees source rates efficiency
Weight guarantee source rates Factor-1, guarantee source rates Factor-2, guarantee source rates Factor-N；
Then, access network side again the period count each signal-to-noise ratio section activated access terminal number SNIRRangeUserNum-1,
SNIRRangeUserNum-2, SNIRRangeUserNum-N, i.e., the period counts each noise to access network side again
The number SNIRRangeUserNum-1 of activated access terminal more corresponding than section, SNIRRangeUserNum-2,
SNIRRangeUserNum-N, and calculate each signal-to-noise ratio section minimum and guarantee resource accounting SNIRRangeProportion-N=
(SNIRRangeUserNum-N/(SNIRRangeUserNum-1+SNIRRangeUserNum-2+····+
SNIRRangeUserNum-N) * SNIRRangeFactor-N), such as calculate the most petty bourgeoisie of signal-to-noise ratio section SNIRRange-1
Source accounting SNIRRangeProportion-1=(SNIRRangeUserNum-1/ (SNIRRangeUserNum-1+
SNIRRangeUserNum-2+····+SNIRRangeUserNum-N)*SNIRRangeFactor-1)。
Access terminal real-time ensuring bit rate can be also calculated simultaneously guarantees signal-to-noise ratio where source rates=access terminal
The guarantee bit rate in section guarantees that source rates efficiency weight * configuration guarantees that bit rate guarantees source rates, and such as: access is eventually
The reversed signal-to-noise ratio of end A is in SNIRRange-1, then its real-time ensuring bit rate guarantees source rates=signal-to-noise ratio section
The guarantee bit rate of SNIRRange-1 guarantees that source rates efficiency weight guarantees source rates Factor-1* signal-to-noise ratio section
The configuration of SNIRRange-1 guarantees source rates, finally minimum according to signal-to-noise ratio section where access terminal by access network side
Guarantee that resource accounting, access terminal priority, access terminal real-time ensuring source rates carry out the process flow diagram of resource allocation.
Fig. 2 is the flow diagram that Satellite communication system of the present invention accesses network side resource allocation.According to Fig.2, have
Body includes:
S11: needing to be arranged the reversed resource intelligent distribution load startup threshold loadThreshold of access network side setting is
Preset threshold, the preset threshold be 80%, i.e., in the case where system reverse resource allocation load is more than 80%, just automatically into
S12 starts reversed resource intelligent distribution control model.
S12: access network side divide signal-to-noise ratio section from small to large according to signal-to-noise ratio, as SNR ranges be [- 5,0) with
SNIRRange-1 indicate, SNR ranges be [0,5) is indicated with SNIRRange-2, SNR ranges for [5,10) with
SNIRRange-3 indicates that the unit in each signal-to-noise ratio section is db；The resource accounting weight in each signal-to-noise ratio section is respectively
SNIRRangeFactor-1, SNIRRangeFactor-2 and SNIRRangeFactor-3, and SNIRRangeFactor-1 etc.
It is equal to 1, SNIRRangeFactor-3 in 0.8, SNIRRangeFactor-2 and is equal to 1.2；The guarantee resource in each signal-to-noise ratio section
Rate efficiency weight is respectively to guarantee source rates Factor-1, guarantee source rates Factor-2 and guarantee source rates
Factor-3, and guarantee that source rates Factor-1 is equal to 0.5, guarantee that source rates Factor-2 is equal to 0.8, guarantees resource speed
Rate Factor-3 is equal to 1.
S13: the period counts the activated access terminal number SNIRRangeUserNum- in each signal-to-noise ratio section to access network side again
1, SNIRRangeUserNum-2, SNIRRangeUserNum-3.
S14: access network side calculates the minimum of each signal-to-noise ratio section and guarantees resource accounting SNIRRangeProportion-1
=(SNIRRangeUserNum-1/ (SNIRRangeUserNum-1+SNIRRangeUserNum-2+
SNIRRangeUserNum-3)*SNIRRangeFactor-1)；
SNIRRangeProportion-2=(SNIRRangeUserNum-2/ (SNIRRangeUserNum-1+
SNIRRangeUserNum-2+SNIRRangeUserNum-3)*SNIRRangeFactor-2)；
SNIRRangeProportion-3=(SNIRRangeUserNum-3/ (SNIRRangeUserNum-1+
SNIRRangeUserNum-2+SNIRRangeUserNum-3)*SNIRRangeFactor-3)。
S15: access network side calculates each access terminal real-time ensuring ratio according to signal-to-noise ratio section dynamic where access terminal
Special rate guarantee source rates, such as: access terminal A configuration guarantees that bit rate guarantees that source rates are 100kbps/s, anti-in real time
It is -1db to signal-to-noise ratio, then it is in SNIRRange-1 signal-to-noise ratio section, then its real-time ensuring bit rate guarantees resource speed
Rate=signal-to-noise ratio section SNIRRange-1 guarantee bit rate guarantees that source rates efficiency weight guarantees source rates
Factor-1* configuration guarantees that bit rate guarantees source rates=50kbps/s.
S16: access network side guarantees that resource accounting, access terminal are preferential according to signal-to-noise ratio section minimum where access terminal
Grade, access terminal real-time ensuring source rates carry out resource allocation.
By adopting the above technical scheme, avoid because current Satellite Communication System is big to signal cover, covering diversity,
Do not have effectively to control the application of the reversed resource of Broadband Satellite caused by the features such as frequency spectrum resource is rare, to realize system
The integration of resource and operation cost and operation diversification application, improve system spectrum utilization rate, realize bandwidth spectrum utilization rate
Controllably, it can effectively improve QoS of customer.
Embodiment to facilitate the understanding of the present invention, a kind of wireless telecommunication system provided second embodiment of the invention are reversed
The device of resource allocation.
Second embodiment:
Fig. 3 is the flow diagram of second embodiment of the invention.According to Fig.3, described device comprises determining that module, uses
Signal-to-noise ratio section belonging to determining the signal-to-noise ratio of destination channel in reverse link communication SNR ranges；Wherein, described reversed logical
Believe that SNR ranges include at least two signal-to-noise ratio sections, each signal-to-noise ratio section corresponds to different signal-to-noise ratio；Distribution
Module distributes corresponding reversed resource for the difference according to affiliated signal-to-noise ratio section for the destination channel.
Optionally, each signal-to-noise ratio section corresponds to the first different weight factors；The distribution module includes: one
Sub-module distributes phase for the size according to affiliated corresponding first weight factor in signal-to-noise ratio section for the destination channel
The reversed resource answered.
Optionally, a sub-module, further includes: obtain module, the access for obtaining affiliated signal-to-noise ratio section is whole
Hold access ratio of the number in the access terminal number in all signal-to-noise ratio sections；Two sub-modules, for according to the access ratio and
First weight factor distributes corresponding reversed resource for the destination channel.
Optionally, first weight factor is the resource accounting weight in the affiliated signal-to-noise ratio section.
Optionally, each access terminal in each signal-to-noise ratio section corresponds to the second different weight factors；The distribution
Module includes: three sub-modules, for according to corresponding second weight factor of each access terminal in affiliated signal-to-noise ratio section
Size distributes corresponding reversed resource for the destination channel.
Optionally, according to three sub-modules, further includes: correction module, for utilizing second weight factor to affiliated
Each access terminal in signal-to-noise ratio section guarantees that source rates are modified；Four sub-modules, for according to the correction result
Corresponding reversed resource is distributed for the destination channel.
Optionally, second weight factor is the guarantee source rates of each access terminal in affiliated signal-to-noise ratio section
Efficiency weight.
Optionally, it is institute that the distribution module, which includes: according to the priority of the access terminal in affiliated signal-to-noise ratio section,
It states destination channel and distributes corresponding reversed resource.
Optionally, before the determining module, further includes: preposition module, for being more than pre- in the load of reversed resource allocation
If in the case where threshold value, the size according to signal-to-noise ratio is that reverse link communication divides at least two reversed signal-to-noise ratio sections.
Optionally, the preset threshold is 80%.
Through the above technical solutions, effectively being avoided using determining module and distribution module because of current satellite communication system
It unites, covering diversity big to signal cover, wide without effectively control satellite caused by the features such as frequency spectrum resource is rare
Application with reversed resource, thus realize system resource integration and operation cost and operation diversification application, improve system
The system availability of frequency spectrum realizes that bandwidth spectrum utilization rate is controllable, can effectively improve QoS of customer.
Embodiment to facilitate the understanding of the present invention, a kind of computer equipment that third embodiment of the invention is provided.
3rd embodiment:
Third embodiment of the invention provides a kind of computer equipment, including processor and memory；The memory is used
In storage computer instruction, the processor is used to run the computer instruction of the memory storage, to realize above-mentioned nothing
The method of the reversed resource allocation of line communication system.
The described method includes: determining the signal-to-noise ratio of destination channel signal-to-noise ratio area affiliated in reverse link communication SNR ranges
Between；Wherein, the reverse link communication SNR ranges include at least two signal-to-noise ratio sections, and each signal-to-noise ratio section is corresponding
Different signal-to-noise ratio；According to the difference in affiliated signal-to-noise ratio section, corresponding reversed resource is distributed for the destination channel.
Optionally, each signal-to-noise ratio section corresponds to the first different weight factors；The noise according to belonging to
It include: corresponding according to affiliated signal-to-noise ratio section for the corresponding reversed resource of destination channel distribution than the difference in section
The size of first weight factor distributes corresponding reversed resource for the destination channel.
Optionally, the size of corresponding first weight factor in the signal-to-noise ratio section according to belonging to is believed for the target
Road distributes corresponding reversed resource, further includes: the access terminal number in the signal-to-noise ratio section belonging to obtaining is in all signal-to-noise ratio sections
Access terminal number in access ratio；According to the access ratio and first weight factor, for the destination channel point
With corresponding reversed resource.
Optionally, first weight factor is the resource accounting weight in the affiliated signal-to-noise ratio section.
Optionally, each access terminal in each signal-to-noise ratio section corresponds to the second different weight factors；The basis
The difference in affiliated signal-to-noise ratio section includes: according to affiliated signal-to-noise ratio for the corresponding reversed resource of destination channel distribution
The size of corresponding second weight factor of each access terminal in section distributes corresponding reversed resource for the destination channel.
Optionally, according to the size of corresponding second weight factor of each access terminal in affiliated signal-to-noise ratio section, it is
The destination channel distributes corresponding reversed resource, further includes: using second weight factor to affiliated signal-to-noise ratio section
In each access terminal guarantee that source rates are modified；It is that destination channel distribution is corresponding according to the correction result
Reversed resource.
Optionally, second weight factor is the guarantee source rates of each access terminal in affiliated signal-to-noise ratio section
Efficiency weight.
Optionally, the difference in the signal-to-noise ratio section according to belonging to, for the corresponding reversed money of destination channel distribution
It is the corresponding reversed money of destination channel distribution that source, which includes: according to the priority of the access terminal in affiliated signal-to-noise ratio section,
Source.
Optionally, the signal-to-noise ratio of determining destination channel signal-to-noise ratio section affiliated in reverse link communication SNR ranges
Before, further includes: in the case where the load of reversed resource allocation is more than preset threshold, the size according to signal-to-noise ratio is reverse link communication
Divide at least two reversed signal-to-noise ratio sections.
Optionally, the preset threshold is 80%.
Embodiment to facilitate the understanding of the present invention, a kind of computer-readable storage medium that fourth embodiment of the invention is provided
Matter.
Fourth embodiment:
Fourth embodiment of the invention provides a kind of computer readable storage medium, the computer-readable storage medium
Matter is stored with one or more program, and one or more of programs can be executed by one or more processor, with reality
The method of the existing above-mentioned reversed resource allocation of wireless telecommunication system.
The described method includes: determining the signal-to-noise ratio of destination channel signal-to-noise ratio area affiliated in reverse link communication SNR ranges
Between；Wherein, the reverse link communication SNR ranges include at least two signal-to-noise ratio sections, and each signal-to-noise ratio section is corresponding
Different signal-to-noise ratio；According to the difference in affiliated signal-to-noise ratio section, corresponding reversed resource is distributed for the destination channel.
Optionally, each signal-to-noise ratio section corresponds to the first different weight factors；The noise according to belonging to
It include: corresponding according to affiliated signal-to-noise ratio section for the corresponding reversed resource of destination channel distribution than the difference in section
The size of first weight factor distributes corresponding reversed resource for the destination channel.
Optionally, the size of corresponding first weight factor in the signal-to-noise ratio section according to belonging to is believed for the target
Road distributes corresponding reversed resource, further includes: the access terminal number in the signal-to-noise ratio section belonging to obtaining is in all signal-to-noise ratio sections
Access terminal number in access ratio；According to the access ratio and first weight factor, for the destination channel point
With corresponding reversed resource.
Optionally, first weight factor is the resource accounting weight in the affiliated signal-to-noise ratio section.
Optionally, each access terminal in each signal-to-noise ratio section corresponds to the second different weight factors；The basis
The difference in affiliated signal-to-noise ratio section includes: according to affiliated signal-to-noise ratio for the corresponding reversed resource of destination channel distribution
The size of corresponding second weight factor of each access terminal in section distributes corresponding reversed resource for the destination channel.
Optionally, according to the size of corresponding second weight factor of each access terminal in affiliated signal-to-noise ratio section, it is
The destination channel distributes corresponding reversed resource, further includes: using second weight factor to affiliated signal-to-noise ratio section
In each access terminal guarantee that source rates are modified；It is that destination channel distribution is corresponding according to the correction result
Reversed resource.
Optionally, second weight factor is the guarantee source rates of each access terminal in affiliated signal-to-noise ratio section
Efficiency weight.
Optionally, the difference in the signal-to-noise ratio section according to belonging to, for the corresponding reversed money of destination channel distribution
It is the corresponding reversed money of destination channel distribution that source, which includes: according to the priority of the access terminal in affiliated signal-to-noise ratio section,
Source.
Optionally, the signal-to-noise ratio of determining destination channel signal-to-noise ratio section affiliated in reverse link communication SNR ranges
Before, further includes: in the case where the load of reversed resource allocation is more than preset threshold, the size according to signal-to-noise ratio is reverse link communication
Divide at least two reversed signal-to-noise ratio sections.
Optionally, the preset threshold is 80%.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (22)
1. a kind of method of the reversed resource allocation of wireless telecommunication system, which is characterized in that the described method includes:
Determine the signal-to-noise ratio of destination channel signal-to-noise ratio section affiliated in reverse link communication SNR ranges；Wherein, described reversed
Communicating SNR ranges includes at least two signal-to-noise ratio sections, and each signal-to-noise ratio section corresponds to different signal-to-noise ratio；
According to the difference in affiliated signal-to-noise ratio section, corresponding reversed resource is distributed for the destination channel.
2. the method according to claim 1, wherein each signal-to-noise ratio section corresponds to the first different power
Repeated factor；
The difference in the signal-to-noise ratio section according to belonging to, for destination channel distribution, reversed resource includes: accordingly
It is corresponding reversed for destination channel distribution according to the size of affiliated corresponding first weight factor in signal-to-noise ratio section
Resource.
3. according to the method described in claim 2, it is characterized in that, corresponding first power in the signal-to-noise ratio section according to belonging to
The size of repeated factor distributes corresponding reversed resource for the destination channel, further includes:
Access ratio of the access terminal number in the signal-to-noise ratio section belonging to obtaining in the access terminal number in all signal-to-noise ratio sections；
According to the access ratio and first weight factor, corresponding reversed resource is distributed for the destination channel.
4. according to the method described in claim 3, it is characterized in that, first weight factor is the affiliated signal-to-noise ratio area
Between resource accounting weight.
5. method according to any one of claims 1 to 4, which is characterized in that each access in each signal-to-noise ratio section
Terminal corresponds to the second different weight factors；
The difference in the signal-to-noise ratio section according to belonging to, for destination channel distribution, reversed resource includes: accordingly
It is the destination channel according to the size of corresponding second weight factor of each access terminal in affiliated signal-to-noise ratio section
Distribute corresponding reversed resource.
6. according to the method described in claim 5, it is characterized in that, according to each access terminal pair in affiliated signal-to-noise ratio section
The size for the second weight factor answered distributes corresponding reversed resource for the destination channel, further includes:
Source rates, which are repaired, to be guaranteed to each access terminal in affiliated signal-to-noise ratio section using second weight factor
Just；
It is that the destination channel distributes corresponding reversed resource according to the correction result.
7. according to the method described in claim 6, it is characterized in that, second weight factor is in affiliated signal-to-noise ratio section
Each access terminal guarantee source rates efficiency weight.
8. the method according to the description of claim 7 is characterized in that the difference in the signal-to-noise ratio section according to belonging to, for institute
Stating the corresponding reversed resource of destination channel distribution includes:
Priority according to the access terminal in affiliated signal-to-noise ratio section is that the destination channel distributes corresponding reversed resource.
9. the method according to claim 1, wherein the signal-to-noise ratio of the determining destination channel is believed in reverse link communication
It makes an uproar than before the signal-to-noise ratio section belonging in range, further includes:
In the case where the load of reversed resource allocation is more than preset threshold, the size according to signal-to-noise ratio is that reverse link communication divides at least
Two reversed signal-to-noise ratio sections.
10. according to the method described in claim 9, it is characterized in that, the preset threshold is 80%.
11. a kind of device of the reversed resource allocation of wireless telecommunication system, which is characterized in that described device includes:
Determining module, for determining the signal-to-noise ratio of destination channel signal-to-noise ratio section affiliated in reverse link communication SNR ranges；
Wherein, the reverse link communication SNR ranges include at least two signal-to-noise ratio sections, and each signal-to-noise ratio section is corresponding not
Same signal-to-noise ratio；
Distribution module distributes corresponding reversed resource for the difference according to affiliated signal-to-noise ratio section for the destination channel.
12. device according to claim 11, which is characterized in that each signal-to-noise ratio section corresponds to different first
Weight factor；
The distribution module includes:
One sub-module is the destination channel for the size according to affiliated corresponding first weight factor in signal-to-noise ratio section
Distribute corresponding reversed resource.
13. device according to claim 12, which is characterized in that a sub-module, further includes:
Module is obtained, for obtaining the access terminal number of the access terminal number in all signal-to-noise ratio sections in affiliated signal-to-noise ratio section
In access ratio；
Two sub-modules, for being distributed for the destination channel corresponding according to the access ratio and first weight factor
Reversed resource.
14. device according to claim 13, which is characterized in that first weight factor is the affiliated signal-to-noise ratio
The resource accounting weight in section.
15. device according to claim 14, which is characterized in that each access terminal in each signal-to-noise ratio section is corresponding
The second different weight factors；
The distribution module includes:
Three sub-modules, for the size according to corresponding second weight factor of each access terminal in affiliated signal-to-noise ratio section,
Corresponding reversed resource is distributed for the destination channel.
16. device according to claim 15, which is characterized in that according to three sub-modules, further includes:
Correction module, for being provided using second weight factor to the guarantee of each access terminal in affiliated signal-to-noise ratio section
Source rate is modified；
Four sub-modules, for being that the destination channel distributes corresponding reversed resource according to the correction result.
17. device according to claim 16, which is characterized in that second weight factor is affiliated signal-to-noise ratio section
In each access terminal guarantee source rates efficiency weight.
18. device according to claim 17, which is characterized in that the distribution module includes:
Priority according to the access terminal in affiliated signal-to-noise ratio section is that the destination channel distributes corresponding reversed resource.
19. device according to claim 11, which is characterized in that before the determining module, further includes:
Preposition module, in the case where the load of reversed resource allocation is more than preset threshold, the size according to signal-to-noise ratio to be anti-
At least two reversed signal-to-noise ratio sections are divided to communication.
20. device according to claim 19, which is characterized in that the preset threshold is 80%.
21. a kind of computer equipment, which is characterized in that including processor and memory；
The memory refers to for storing computer instruction, the computer that the processor is used to run the memory storage
It enables, the method to realize the reversed resource allocation of wireless telecommunication system described in any one of claims 1 to 10.
22. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage have one or
Multiple programs, one or more of programs can be executed by one or more processor, to realize in claims 1 to 10
The method of described in any item reversed resource allocations of wireless telecommunication system.
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| PCT/CN2018/095381 WO2019056836A1 (en) | 2017-09-25 | 2018-07-12 | Reverse resource allocation method and device, and computer storage medium |
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