CN104981014B - Descending resource allocation method and base station - Google Patents
Descending resource allocation method and base station Download PDFInfo
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- CN104981014B CN104981014B CN201410133484.7A CN201410133484A CN104981014B CN 104981014 B CN104981014 B CN 104981014B CN 201410133484 A CN201410133484 A CN 201410133484A CN 104981014 B CN104981014 B CN 104981014B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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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
- H04W72/543—Allocation or scheduling criteria for wireless resources based on quality criteria based on requested quality, e.g. QoS
Abstract
A kind of descending resource allocation method of present invention offer and base station, this method include：Period obtains cell downlink GBR traffic satisfaction rate statistical value, which includes RB resources used in business of the priority higher than GBR traffic；According to the RB number of resources and the satisfaction rate statistical value of the PDSCH of current TTI, determine that Non GBR traffics can use RB number of resources in current TTI, when dispatching while possessing the user of GBR traffic and Non GBR traffics, the RB number of resources used by limiting its Non GBR traffic, ensure that the GBR traffic of subsequent user can obtain required RB resources, to ensure that the GBR traffic of subsequent user can reach respective qos requirement.The GBR traffic and Non GBR traffics data for eating dishes without rice or wine to send the user simultaneously authorize well instruction.The number for carrying out downstream grants instruction is reduced, the efficiency of authorization resources CCE is improved.
Description
Technical field
The invention belongs to wireless mobile telecommunication technology field, it is specifically related to a kind of descending resource allocation method and base station.
Background technology
Long term evolution（Long Term Evolution, hereinafter referred to as LTE）Project is third generation partner program (3rd
Generation Partnership Project, hereinafter referred to as 3GPP) tissue push future mobile communications architectural framework.
LTE business is all using packet switching service, according to service quality（Quality of Service, hereinafter referred to as QoS）Grade
It is broadly divided into guarantee bit rate（Guarantee Bit Rate, hereinafter referred to as GBR）Business and non-guaranteed bit rate（Non-
Guarantee Bit Rate, hereinafter referred to as Non-GBR）Business.GBR traffic needs to ensure certain service rate, and Non-
GBR traffic is not necessary to guaranty that service rate.GBR traffic, such as streaming media service are relatively high to the delay requirement of data transmission, directly
It connects and influences user experience, therefore, it is necessary to be preferably that each GBR traffic carries out resource block（Resource Block, hereinafter referred to as
RB）Allocation schedule ensures bit rate requirement to meet it, can be just that Non-GBR business carries out RB scheduling later.
Currently, in LTE system, downlink RB resource allocation schedulings are carried out as unit of business radio bearer.Due to
GBR traffic priority is higher than Non-GBR service priority, and base station is preferentially directed to each GBR traffic successively according to service priority
Carrying carries out the scheduling of RB resources, is directed to the scheduling that each Non-GBR service bearers carry out resource again later.
It is above-mentioned in the prior art, as unit of service bearer being followed successively by each business datum according to priority carries out RB resources
The mode of distribution will be mutually in requisition for multiple scheduling, multi-user's for multiple service bearers corresponding with same user terminal
Under scene, excessive scheduling times not only need long scheduling time and excessive control channel unit（Control
Channel Element, hereinafter referred to as CCE）, lead to too low dispatching efficiency, also result in the RB resources eated dishes without rice or wine divided time
Number increases so that the data volume that can be transmitted of eating dishes without rice or wine is reduced, and wastes interface-free resources.
Invention content
For problems of the prior art, the present invention provides a kind of descending resource allocation method and base station, to gram
Clothes are carried out downlink RB scheduling of resource in the prior art as unit of service bearer and so that scheduling times are excessive, cause dispatching efficiency low
Defect.
The present invention provides a kind of descending resource allocation methods, including：
Periodically acquire downlink GBR traffic satisfaction rate statistical value in cell, the downlink GBR traffic satisfaction rate statistical value packet
It includes and has distributed to the RB resources of the GBR traffic and priority of each user terminal in the cell higher than the business of the GBR traffic
Ratio of the sum of the number with the RB total number resources of PDSCH；
It is full according to the downlink GBR traffic of the RB number of resources of the PDSCH of the current TTI of current period and previous cycle
Meaning rate statistical value determines that the assignable resource RB numbers of Non-GBR business, the current period include N number of in the cell of current TTI
The TTI, N are positive integer；
Obtain the RB number of resources needed for the GBR traffic of active user's terminal of current TTI and the RB needed for Non-GBR business
Number of resources；
RB number of resources needed for the GBR traffic of active user's terminal is determined as active user's terminal
The RB number of resources of GBR traffic distribution；
According to the Non- of the Non-GBR business of the current TTI assignable RB number of resources and active user's terminal
RB number of resources needed for GBR traffic is determined as the RB number of resources of the Non-GBR traffic assignments of active user's terminal；
According to the GBR traffic RB resources for distributing to active user's terminal of quantification and Non-GBR business RB moneys
Source sends the data of the data and the Non-GBR business of the GBR traffic to active user's terminal, and is provided by CCE
Source carries out downstream grants.
The present invention provides a kind of base stations, including：
First acquisition module, for periodically acquiring downlink GBR traffic satisfaction rate statistical value in cell, the downlink GBR
Business satisfaction rate statistics includes having distributed to the GBR traffic and priority of each user terminal in the cell higher than the GBR industry
The ratio of the sum of RB number of resources of the business of business and the RB total number resources of PDSCH；
First determining module, for according to the RB number of resources of the PDSCH of the current TTI of current period and previous cycle
The downlink GBR traffic satisfaction rate statistical value determines the assignable RB number of resources of Non-GBR business, institute in the cell of current TTI
It includes N number of TTI to state current period, and N is positive integer；
Second acquisition module, RB number of resources needed for the GBR traffic of active user's terminal for obtaining current TTI and
RB number of resources needed for Non-GBR business；
Second determining module is determined as institute for the RB number of resources needed for the GBR traffic according to active user's terminal
State the RB number of resources of the GBR traffic distribution of active user's terminal；
Third determining module, for according to the current TTI the assignable RB number of resources of Non-GBR business and described work as
RB number of resources needed for the Non-GBR business of preceding user terminal is determined as the Non-GBR traffic assignments of active user's terminal
RB number of resources；
Sending module, for according to the GBR traffic RB resources for distributing to active user's terminal of quantification and
Non-GBR business RB resources send the number of the data and the Non-GBR business of the GBR traffic to active user's terminal
According to, and downstream grants are carried out by CCE resources.
Descending resource allocation method provided by the invention and base station, according to having distributed to each user terminal GBR industry in cell
RB number of resources used in business and business of the priority higher than GBR traffic counts periodically to obtain downlink GBR traffic satisfaction rate
Value, to be worth in current TTI the assignable RB number of resources of Non-GBR business in the cell based on satisfaction rate statistics, into
And when dispatching while possessing the downlink user of GBR traffic and Non-GBR business, get active user's terminal in current TTI
GBR traffic and Non-GBR business respectively needed for RB number of resources after, according to Non-GBR business can in the cell in current TTI
The RB number of resources of distribution is user terminal Non-GBR business RB resources to limit practical, reaches the GBR for ensureing subsequent user
Service rate has enough resources that can dispatch, so that it is guaranteed that the purpose of all GBR traffic QoS.And with determining GBR traffic and
The RB resources that Non-GBR business uses respectively send the business datum of corresponding business to the user terminal, and by CCE resources into
Row downstream grants indicate.Determine that Non-GBR business can divide in current TTI based on downlink GBR traffic satisfaction rate statistical value
The RB total number resources matched ensure that the RB resources for distributing to active user's Non-GBR business do not interfere with follow-up GBR as limitation
The QoS of business, while reducing the number that downstream grants instruction is carried out using CCE.In the same of the service quality that ensure that GBR traffic
When, for the terminal for possessing GBR traffic and Non-GBR business simultaneously, reduces the number of required downstream grants, improve money
The allocation schedule efficiency in source, has saved CCE resources.
Description of the drawings
Fig. 1 is the flow chart of descending resource allocation method embodiment one of the present invention；
Fig. 2 is the flow chart of descending resource allocation method embodiment two of the present invention；
Fig. 3 is the structural schematic diagram of base station embodiment one of the present invention；
Fig. 4 is the structural schematic diagram of base station embodiment two of the present invention.
Specific implementation mode
Fig. 1 is the flow chart of descending resource allocation method embodiment one of the present invention, as shown in Figure 1, provided in this embodiment
The method is particularly suitable in LTE system, and the main thought of this method is：Point of RB resources is carried out as unit of user terminal
Match, specifically, base station is higher than GBR industry by being already allocated to the GBR traffic and priority of each user terminal in cell to it
The downlink RB resource situations that the business of business uses carry out periodic statistics, are satisfied with the cell downlink GBR traffic for obtaining the period
Rate counts, and the satisfaction rate statistical value in the above period is reference, determines current transmission time interval in this period respectively
（Transmission Time Interval, hereinafter referred to as TTI）In can distribute for Non-GBR business uses in cell RB
Number of resources, scheduling while when possessing the user of GBR data and Non-GBR data distribute enough RB resources to GBR traffic,
Under the premise of without departing from the assignable RB number of resources of the Non-GBR business of this TTI, active user's Non-GBR traffic assignments RB is given
Resource；Both it is simultaneously emitted by the data of the multiple business of user, and had reduced downstream grants number, and CCE resources had been saved, after in turn ensuring
The GBR rates of user's GBR traffic of continuous scheduling.It is worth noting that the user terminal described in the present embodiment refers in particular to together
When the user terminal with GBR traffic and Non-GBR business, can also be while having the user of multiple same kind business whole
End, for example there are multiple GBR traffics, or there are multiple Non-GBR business；But for the terminal for there was only Non-GBR business, by
In the terminal for having GBR traffic prior to only having the terminal of Non-GBR business to be dispatched, there was only the end of Non-GBR business in scheduling
When end, the GBR traffic of this TTI cells is scheduled to be finished, and the rate of GBR traffic has also been guaranteed, at this point, cell is remaining
RB resources used totally by Non-GBR business, do not limited by the available RB number of resources of cell Non-GBR；Or in cell
After the terminal scheduling for having GBR traffic, cell Non-GBR business can be updated to cell residue RB resources with RB number of resources
Number.
It is provided in this embodiment the method includes：
Step 101 periodically acquires downlink GBR traffic satisfaction rate statistical value in cell, the downlink GBR traffic satisfaction rate
Statistical value includes the business of GBR traffic and priority higher than the GBR traffic for having distributed to each user terminal in the cell
Ratio with the RB total number resources of PDSCH of the sum of RB number of resources；
In LTE system, enhanced base station（Evolved Node B, hereinafter referred to as eNB）Industry is sent to each user terminal
The RB resources used needed for business data are allocated scheduling by the eNB, to realize resource-sharing of each user terminal to resource.It is existing
Have in technology, is mainly followed successively by the distribution that each service bearer carries out RB resources using according to the priority of each pending business
The technical solution of scheduling, the method provided in this embodiment are as unit of user terminal, to the multiple of same user terminal
Service bearer is carried out at the same time RB scheduling of resource.
Specifically, eNB carries out periodic statistics, the above period to cell downlink GBR traffic satisfaction rate in the present embodiment
Constraint of the satisfaction rate statistical value as next period RB resource allocations, but it is worth noting that, in system initial launch,
ENB can according to the prior art carry out downlink RB resources distribution, or can rule of thumb preset satisfaction rate according to this reality
Apply the distribution that the method that example is provided carries out downlink RB resources.
Specifically, since LTE system downlink GBR traffic and Non-GBR business are in Physical Downlink Shared Channel（Physical
Downlink Shared Channel, hereinafter referred to as PDSCH）Upper transmission, so the downlink GBR traffic satisfaction in the present embodiment
Rate statistical value includes：The GBR traffic and priority that each user terminal in cell has been distributed in this period are higher than the industry of GBR traffic
The ratio of the sum of RB number of resources of business and the RB total number resources of PDSCH.
In addition, it is worth noting that, downlink GBR traffic satisfaction rate statistical value why is counted, and be satisfied with the GBR traffic
Foundation of the rate statistical value as resource allocation is because the priority of GBR traffic is higher than Non-GBR business, and the guarantor of GBR traffic
Card rate must be satisfied for, and reasonably select measurement period that the downlink GBR traffic satisfaction rate statistical value can be made closer
The real-time business statistics characteristic of cell, so that the RB resources to PDSCH are carried out for GBR traffic and Non-GBR business
Division result it is more reasonable.
Step 102, according to the RB number of resources of the PDSCH of the current TTI of current period and the downlink of previous cycle
GBR traffic satisfaction rate statistical value determines the assignable resource RB numbers of Non-GBR business in the cell of current TTI, the current week
Phase includes N number of TTI, and N is positive integer；
In LTE system, the dispatching distribution of RB resources is scheduled by minimum time unit of TTI, base station eNB
It is responsible for carrying out RB resources unified scheduling and management, so the RB number of resources of its PDSCH that can know current TTI is based on being somebody's turn to do
The downlink GBR traffic satisfaction rate statistical value in a upper period for acquisition was counted in RB number of resources and step 101, you can obtain current
The assignable resource RB numbers of cell Non-GBR business in the current TTI in period, wherein the current period includes N number of described
TTI, N are positive integer.
Step 103 obtains RB number of resources and Non-GBR business needed for the GBR traffic of active user's terminal in current TTI
Required RB number of resources；
In current TTI, base station eNB has several business datums to need to issue to different user terminals, it is known that
It can includes the identification informations such as type of service, reception address in each business data packet to be, so base station is known that
Which user terminal is each business data packet to be sent belong to, and is any type of service, including GBR traffic and
Non-GBR business.Base station can integrate the GBR traffic and Non-GBR business for belonging to user terminal respectively, into
And the GBR traffic of each user terminal is followed successively by and Non-GBR business is provided according to the dispatching priority of each user terminal sequence
Source allocation schedule.Since the scheduling to each user terminal is similar, only explained by taking active user's terminal as an example in the present embodiment
Illustrate, which is the pending active user's end determined according to the access sequential or dispatching priority
End.
Specifically, eNB needs to obtain the RB number of resources and Non- needed for the GBR traffic of active user's terminal in current TTI
RB number of resources needed for GBR traffic, specifically, the modulation coding scheme that can be selected according to active user's terminal
（Modulation and Coding Scheme, hereinafter referred to as MCS）Exponent number waits for the GBR industry sent to the current user terminal
Business data volume and Non-GBR business datums amount determine the RB number of resources needed for GBR traffic and Non-GBR business.
RB number of resources needed for step 104, the GBR traffic according to active user's terminal is determined as the active user
The RB number of resources of the GBR traffic distribution of terminal；
It is step 105, whole according to the assignable RB number of resources of Non-GBR business of the current TTI and the active user
RB number of resources needed for the Non-GBR business at end is determined as the RB resources of the Non-GBR traffic assignments of active user's terminal
Number；
Step 106, the GBR traffic RB resources and Non-GBR for distributing to active user's terminal according to quantification
Business RB resources send the data of the data and the Non-GBR business of the GBR traffic to active user's terminal, and lead to
It crosses CCE resources and carries out downstream grants instruction.
In the present embodiment, when eNB knows the RB number of resources and Non- in current TTI needed for active user's terminal GBR traffic
In RB number of resources needed for GBR traffic, and the cell of current TTI after the assignable resource RB numbers of Non-GBR business, you can root
RB resource allocations are carried out according to the GBR traffic that the RB number of resources needed for active user's terminal GBR traffic is active user's terminal, simultaneously
Needed for the assignable resource RB numbers of Non-GBR business in cell in current TTI and active user's terminal Non-GBR business
RB number of resources is the Non-GBR business progress RB resource allocations of active user's terminal, and then according to described in quantification
The GBR traffic RB resources and Non-GBR business RB resources of active user's terminal send the GBR industry to active user's terminal
The data of the data of business and the Non-GBR business, and mandate instruction is carried out by CCE resources.
In the present embodiment, according to distributed to the RB number of resources that each user terminal GBR traffic uses in cell come periodically
Downlink GBR traffic satisfaction rate statistical value is obtained, to count to obtain in current TTI Non-GBR in the cell based on the satisfaction rate
The assignable RB number of resources of business, and then getting the GBR traffic of active user's terminal and Non-GBR business in current TTI
After RB number of resources needed for respectively, reality is determined according to the assignable RB number of resources of cell Non-GBR business in current TTI
For the Non-GBR business RB resources of user terminal distribution, and the RB number of resources needed for the GBR traffic according to the user terminal
Be determined as the RB number of resources of its GBR traffic distribution, the RB resources used respectively with determining GBR traffic and Non-GBR business to
The user terminal sends corresponding data.Determine Non-GBR business current based on downlink GBR traffic satisfaction rate statistical value
The RB total number resources that can be distributed in TTI, what this two classes business for determining to same user terminal as limitation was distributed
RB resources, while the service quality that ensure that GBR traffic, for same user terminal, it is only necessary to primary distribution scheduling process
, the allocation schedule efficiency of resource is substantially increased, CCE resources have been saved.
Fig. 2 is the flow chart of descending resource allocation method embodiment two of the present invention, as shown in Fig. 2, this method includes：
Step 201 periodically acquires downlink GBR traffic satisfaction rate statistical value in cell, the downlink GBR traffic satisfaction rate
Statistical value includes the business of GBR traffic and priority higher than the GBR traffic for having distributed to each user terminal in the cell
Ratio with the RB total number resources of PDSCH of the sum of RB number of resources；
Step 202, with the RB number of resources of the PDSCH of the current TTI, be multiplied by the downlink GBR traffic satisfaction rate statistics
Value obtains the RB number of resources that the GBR traffic of current TTI needs, and with the RB number of resources of the PDSCH of the current TTI, subtracts described
The RB number of resources that GBR traffic needs, obtains the assignable resource RB numbers of Non-GBR business of current TTI；
Specifically, in the present embodiment, due to the service quality QoS grade according to business in LTE system, mainly by business
It is divided into GBR traffic and Non-GBR business, therefore, ideally, base station can obtain current by following mode
GBR traffic and Non-GBR business distinguish assignable resource RB numbers in cell in TTI：
With the RB number of resources of the PDSCH of the current TTI, it is multiplied by the downlink GBR traffic satisfaction rate statistical value, is worked as
The RB number of resources that the GBR traffic of preceding TTI needs；
With the RB number of resources of the PDSCH of the current TTI, the RB number of resources that the GBR traffic needs is subtracted, is obtained current
The assignable resource RB numbers of Non-GBR business of TTI.
Therefore, it in the present embodiment, can be counted according to downlink GBR traffic satisfaction rate to determine in the current TTI of current period
The GBR traffic of all user terminals in cell needs the RB resources that RB number of resources and Non-GBR business to be used can use
The number upper limit, and come to carry out resource allocation scheduling to each user terminal in current TTI on this basis.
Step 203, basis channel quality corresponding with active user's terminal, determine and active user's terminal-pair
The MCS exponent numbers answered；
Step 204 according to determining MCS exponent numbers and waits for the GBR traffic data volume sent to active user's terminal, obtains
Take the RB number of resources needed for the GBR traffic of active user's terminal；
Step 205 according to determining MCS exponent numbers and waits for the Non-GBR business datums sent to active user's terminal
Amount, obtains the RB number of resources needed for the Non-GBR business of active user's terminal；
Specifically, after the available RB number of resources of Non-GBR business for knowing all user terminals in current TTI, base
The eNB that stands need to obtain the actually required RB number of resources of pending active user's terminal.Wherein, eNB is according to active user end
The channel quality at end determines MCS exponent numbers corresponding with active user's terminal, according to determining MCS exponent numbers and waits for described
The GBR traffic data volume that active user's terminal is sent, obtains the RB number of resources needed for the GBR traffic of active user's terminal；
It according to determining MCS exponent numbers and waits for the Non-GBR business datum amounts sent to active user's terminal, obtains the current use
RB number of resources needed for the Non-GBR business of family terminal, the part are the prior art, are repeated no more.
Step 206, the RB number of resources for the GBR traffic distribution for being determined as active user's terminal are that the active user is whole
RB number of resources needed for the GBR traffic at end；
Step 207 judges whether the assignable RB number of resources of the Non-GBR business of the current TTI is greater than or equal to institute
State the RB number of resources needed for the Non-GBR business of active user's terminal, if more than or be equal to, then follow the steps 208, otherwise, hold
Row step 209；
Step 208, the RB number of resources for the Non-GBR traffic assignments for being determined as active user's terminal are the current use
RB number of resources needed for the Non-GBR business of family terminal；
Step 209, the RB number of resources for the Non-GBR traffic assignments for being determined as active user's terminal are described current
The assignable RB number of resources of Non-GBR business of TTI；
Step 210, with the assignable RB number of resources of the Non-GBR business of the current TTI and active user's terminal
Non-GBR traffic assignments RB number of resources difference, update the assignable RB resources of Non-GBR business of the current TTI
Number；
Step 211, the GBR traffic RB resources and Non-GBR for distributing to active user's terminal according to quantification
Business RB resources send the data of the data and the Non-GBR business of the GBR traffic to active user's terminal, and lead to
It crosses CCE resources and carries out mandate instruction.
When eNB has known the actually required RB number of resources of the GBR traffic of active user's terminal and the practical institute of Non-GBR business
Need to be finally the current use using the assignable RB number of resources of Non-GBR business in determining cell as evidence after the RB number of resources needed
Family terminal determines the RB resources of distribution.
Specifically, since the priority of GBR traffic is higher than Non-GBR business, and the guaranteed rate of GBR traffic must obtain
Meet, it is thus determined that the RB number of resources for being the GBR traffic distribution of active user's terminal is the GBR of active user's terminal
RB number of resources needed for business.
In practical applications, by reasonably selecting the measurement period of downlink GBR traffic satisfaction rate, it can make adjacent week
The statistical property variation of business is little in period cell, so the current TTI being worth to is counted based on downlink GBR traffic satisfaction rate
The interior assignable RB number of resources Many times of GBR traffic can meet the need of the GBR traffic of all user terminals in current TTI
It asks, at this point, can be the RB number of resources needed for active user's terminal distribution its GBR traffic, and in the GBR industry of all user terminals
After business is dispatched, the remaining RB resources of cell are supplied to the terminal for the only Non-GBR business for not obtaining scheduling use,
The RB number of resources of Non-GBR traffic assignments just no longer can be distributed RB resource constraints by above-mentioned cell Non-GBR business at this time.
When the Non-GBR business to active user's terminal carries out RB resource allocations, base station eNB first has to judge current
Whether the assignable RB number of resources of Non-GBR business is more than or equal to the RB needed for the Non-GBR business of active user's terminal in TTI
Number of resources, if it is greater than or equal to, it is determined that the RB number of resources for the Non-GBR traffic assignments of active user's terminal is described works as
RB number of resources needed for the Non-GBR business of preceding user terminal；If being less than, it is determined that be the Non- of active user's terminal
The RB number of resources of GBR traffic distribution is the assignable RB number of resources of Non-GBR business in the current TTI.Due to Non-GBR industry
Business is the satisfaction without carrying out guaranteed rate, therefore, when the assignable RB number of resources of Non-GBR business is less than active user end
When the actual needs of end, the Non-GBR business that these assignable RB number of resources are fully allocated to the current user terminal uses
.Later, the assignable RB number of resources of the Non-GBR business is updated, that is, subtracts the Non-GBR of active user's terminal
RB number of resources needed for business is as the assignable RB number of resources of updated Non-GBR business, with updated assignable
Foundation of the RB number of resources as the Non-GBR business RB resource allocations of next pending user terminal.It is worth noting that if
Cell current residual RB number of resources is less than the RB number of resources needed for active user's terminal, then all distributes cell residue RB resources
The terminal is given, these RB resource priorities are used to send the data of GBR traffic.Finally, base station eNB is worked as according to described in quantification
The GBR traffic RB resources and Non-GBR business RB resources of preceding user terminal are sent and the GBR industry to active user's terminal
Corresponding business datum of being engaged in and business datum corresponding with the Non-GBR business.
In the present embodiment, the institute in cell in the current TTI of determining current period is counted according to downlink GBR traffic satisfaction rate
There are the RB number of resources that the GBR traffic of user terminal needs and the RB number of resources upper limits that Non-GBR business can use, in this TTI
GBR traffic scheduling finish before, on this basis limit Non-GBR traffic assignments RB number of resources, in current TTI simultaneously
The user terminal for possessing GBR traffic and Non-GBR business carries out resource allocation, since satisfaction rate statistics is to be based on having met
The GBR traffic of user demand obtains, therefore can be effectively ensured the QoS requirement of the GBR traffic of user terminal；Separately
Outside, GBR traffic and Non-GBR business as unit of user terminal, while for certain user terminal carry out the distribution tune of RB resources
Degree, reduces scheduling times and the demand of CCE, the utilization rate of resource is improved while improving dispatching efficiency.
Fig. 3 is the structural schematic diagram of base station embodiment one of the present invention, as shown in figure 3, the base station includes：
First acquisition module 11, for periodically acquiring downlink GBR traffic satisfaction rate statistical value in cell, the downlink
GBR traffic satisfaction rate statistics includes having distributed to the GBR traffic and priority of each user terminal in the cell higher than the GBR
The ratio of the sum of RB number of resources of the business of business and the RB total number resources of PDSCH；
First determining module 12 is used for the RB number of resources and previous cycle of the PDSCH of the current TTI according to current period
The downlink GBR traffic satisfaction rate statistical value, determine the assignable RB number of resources of Non-GBR business in the cell of current TTI,
The current period includes N number of TTI, and N is positive integer；
Second acquisition module 13, RB number of resources needed for the GBR traffic of active user's terminal for obtaining current TTI and
RB number of resources needed for Non-GBR business；
Second determining module 14 is determined as the RB number of resources needed for the GBR traffic according to active user's terminal
The RB number of resources of the GBR traffic distribution of active user's terminal；
Third determining module 15, for according to the assignable RB number of resources of Non-GBR business of the current TTI and described
RB number of resources needed for the Non-GBR business of active user's terminal is determined as the Non-GBR business point of active user's terminal
The RB number of resources matched；
Sending module 16, for according to the GBR traffic RB resources for distributing to active user's terminal of quantification and
Non-GBR business RB resources send the number of the data and the Non-GBR business of the GBR traffic to active user's terminal
According to, and downstream grants instruction is carried out by CCE resources.
The base station of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 1, realization principle and skill
Art effect is similar, and details are not described herein again.
Fig. 4 is the structural schematic diagram of base station embodiment two of the present invention, as shown in figure 4, base station provided in this embodiment is in Fig. 3
On the basis of illustrated embodiment, first determining module 12, including：
First computing unit 121, for the RB number of resources of the PDSCH of the current TTI, being multiplied by the downlink GBR industry
Business satisfaction rate statistical value obtains the RB number of resources that the GBR traffic of current TTI needs；
Second computing unit 122, for the RB number of resources of the PDSCH of the current TTI, subtracting the current TTI's
The RB number of resources that GBR traffic needs, obtains the assignable resource RB numbers of Non-GBR business of current TTI.
Further, second acquisition module 13, including：
First determination unit 131, for according to channel quality corresponding with active user's terminal, determination to be worked as with described
The corresponding MCS exponent numbers of preceding user terminal；
First acquisition unit 132, for according to determining MCS exponent numbers and waiting for the GBR sent to active user's terminal
Business datum amount obtains the RB number of resources needed for the GBR traffic of active user's terminal；
Second acquisition unit 133, for according to determining MCS exponent numbers and waiting for the Non- sent to active user's terminal
GBR traffic data volume obtains the RB number of resources needed for the Non-GBR business of active user's terminal.
Further, the third determining module 15, including：
Judging unit 151, for judging whether the assignable RB number of resources of Non-GBR business is more than in the current TTI
Or the RB number of resources needed for the Non-GBR business equal to active user's terminal；
Second determination unit 152, for if more than or be equal to, it is determined that be active user's terminal Non-GBR industry
The RB number of resources of business distribution is the RB number of resources needed for the Non-GBR business of active user's terminal；
Third determination unit 153, if for being less than, it is determined that be the Non-GBR traffic assignments of active user's terminal
RB number of resources be the current TTI the assignable RB number of resources of Non-GBR business.
Further, the base station further includes：
Update module 21, for the assignable RB number of resources of the Non-GBR business of the current TTI and the current use
The difference of the RB number of resources of the Non-GBR traffic assignments of family terminal, the Non-GBR business for updating the current TTI are assignable
RB number of resources.
The base station of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 2, realization principle and skill
Art effect is similar, and details are not described herein again.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer read/write memory medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes：ROM, RAM, magnetic disc or light
The various media that can store program code such as disk.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (4)
1. a kind of descending resource allocation method, which is characterized in that including：
Periodically acquire descending guarantee bit rate GBR traffic satisfaction rate statistical value in cell, the downlink GBR traffic satisfaction rate
Statistical value is to have distributed to the GBR traffic and priority of each user terminal in the cell to have distributed to the cell higher than described
The resource block RB total number resources of the business of the GBR traffic of interior each user terminal and the RB resources of Physical Downlink Shared Channel PDSCH
The ratio of sum；
According to the RB number of resources of the PDSCH of the current transmission time interval TTI of current period and the downlink of previous cycle
GBR traffic satisfaction rate statistical value determines the non-guaranteed assignable RB moneys of bit rate Non-GBR business in the cell of current TTI
Source number, the current period include N number of TTI, and N is positive integer；
Obtain the RB number of resources needed for the GBR traffic of active user's terminal of current TTI and the RB resources needed for Non-GBR business
Number；
RB number of resources needed for the GBR traffic of active user's terminal is determined as the GBR industry of active user's terminal
The RB number of resources of business distribution；
According to the Non-GBR industry of the Non-GBR business of the current TTI assignable RB number of resources and active user's terminal
RB number of resources needed for business is determined as the RB number of resources of the Non-GBR traffic assignments of active user's terminal；
According to the GBR traffic RB resources for distributing to active user's terminal of quantification and Non-GBR business RB resources, to
Active user's terminal sends the data of the data and the Non-GBR business of the GBR traffic, and passes through control channel list
First CCE resources carry out mandate instruction；
The RB number of resources of the PDSCH of the current TTI according to current period and the downlink GBR traffic of previous cycle are full
Meaning rate statistical value determines the assignable RB number of resources of Non-GBR business in the cell of current TTI, including：
With the RB number of resources of the PDSCH of the current TTI, it is multiplied by the downlink GBR traffic satisfaction rate statistical value, is obtained current
The RB number of resources that the GBR traffic of TTI needs；
With the RB number of resources of the PDSCH of the current TTI, the RB number of resources that the GBR traffic of the current TTI needs is subtracted, is obtained
To the assignable RB number of resources of Non-GBR business of current TTI；
RB number of resources needed for the GBR traffic of the active user's terminal for obtaining current TTI and the RB needed for Non-GBR business
Number of resources, including：
According to channel quality corresponding with active user's terminal, modulating-coding corresponding with active user's terminal is determined
Mode MCS exponent numbers；
It according to determining MCS exponent numbers and waits for the GBR traffic data volume sent to active user's terminal, obtains the current use
RB number of resources needed for the GBR traffic of family terminal；
It according to determining MCS exponent numbers and waits for the Non-GBR business datum amounts sent to active user's terminal, works as described in acquisition
RB number of resources needed for the Non-GBR business of preceding user terminal；
The Non- of the Non-GBR business according to the current TTI assignable RB number of resources and active user's terminal
RB number of resources needed for GBR traffic is determined as the RB number of resources of the Non-GBR traffic assignments of active user's terminal, including：
Judge whether the assignable RB number of resources of the Non-GBR business of the current TTI is more than or equal to active user's terminal
Non-GBR business needed for RB number of resources；
If more than or be equal to, it is determined that the RB number of resources for the Non-GBR traffic assignments of active user's terminal is described works as
RB number of resources needed for the Non-GBR business of preceding user terminal；
If being less than, it is determined that the RB number of resources for the Non-GBR traffic assignments of active user's terminal is the current TTI
The assignable RB number of resources of Non-GBR business.
2. according to the method described in claim 1, it is characterized in that, the Non-GBR business according to the current TTI can divide
It is whole that RB number of resources needed for the Non-GBR business of the RB number of resources and active user's terminal matched is determined as the active user
After the RB number of resources of the Non-GBR traffic assignments at end, further include：
With the Non-GBR business of the Non-GBR business of the current TTI assignable RB number of resources and active user's terminal
The difference of the RB number of resources of distribution updates the assignable RB number of resources of Non-GBR business of the current TTI.
3. a kind of base station, which is characterized in that including：
First acquisition module, for periodically acquiring downlink GBR traffic satisfaction rate statistical value in cell, the downlink GBR traffic
Satisfaction rate statistical value has distributed to institute to have distributed to the GBR traffic and priority of each user terminal in the cell higher than described
State the ratio of the RB total number resources of the business of the GBR traffic of each user terminal in cell and the RB total number resources of PDSCH；
First determining module, described in the RB number of resources and previous cycle according to the PDSCH of the current TTI of current period
Downlink GBR traffic satisfaction rate statistical value determines the assignable RB number of resources of Non-GBR business in the cell of current TTI, described to work as
The preceding period includes N number of TTI, and N is positive integer；
Second acquisition module, the RB number of resources needed for the GBR traffic of active user's terminal for obtaining current TTI and Non-
RB number of resources needed for GBR traffic；
Second determining module is determined as described work as the RB number of resources needed for the GBR traffic according to active user's terminal
The RB number of resources of the GBR traffic distribution of preceding user terminal；
Third determining module, for according to the assignable RB number of resources of Non-GBR business of the current TTI and the current use
RB number of resources needed for the Non-GBR business of family terminal is determined as the RB of the Non-GBR traffic assignments of active user's terminal
Number of resources；
Sending module, for the GBR traffic RB resources and Non-GBR for distributing to active user's terminal according to quantification
Business RB resources send the data of the data and the Non-GBR business of the GBR traffic to active user's terminal, and lead to
It crosses CCE resources and carries out mandate instruction；
First determining module, including：
First computing unit, for the RB number of resources of the PDSCH of the current TTI, being multiplied by the downlink GBR traffic satisfaction rate
Statistical value obtains the RB number of resources that the GBR traffic of current TTI needs；
Second computing unit, for the RB number of resources of the PDSCH of the current TTI, subtracting the GBR traffic of the current TTI
The RB number of resources needed obtains the assignable RB number of resources of Non-GBR business of current TTI；
Second acquisition module, including：
First determination unit, for according to channel quality corresponding with active user's terminal, determining and the active user
The corresponding MCS exponent numbers of terminal；
First acquisition unit, for according to determining MCS exponent numbers and waiting for the GBR traffic data sent to active user's terminal
Amount, obtains the RB number of resources needed for the GBR traffic of active user's terminal；
Second acquisition unit, for according to determining MCS exponent numbers and waiting for the Non-GBR business sent to active user's terminal
Data volume obtains the RB number of resources needed for the Non-GBR business of active user's terminal；
The third determining module, including：
Judging unit, for judging whether the assignable RB number of resources of the Non-GBR business of the current TTI is greater than or equal to institute
State the RB number of resources needed for the Non-GBR business of active user's terminal；
Second determination unit, for if more than or be equal to, it is determined that for the Non-GBR traffic assignments of active user's terminal
RB number of resources is the RB number of resources needed for the Non-GBR business of active user's terminal；
Third determination unit, if for being less than, it is determined that for the RB resources of the Non-GBR traffic assignments of active user's terminal
Number is the assignable RB number of resources of Non-GBR business of the current TTI；
4. base station according to claim 3, which is characterized in that further include：
Update module, for the assignable RB number of resources of the Non-GBR business of the current TTI and active user's terminal
Non-GBR traffic assignments RB number of resources difference, update the assignable RB resources of Non-GBR business of the current TTI
Number.
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| CN105376764B (en) * | 2015-11-25 | 2019-01-15 | 中国联合网络通信集团有限公司 | A kind of method for building up and system of carrying |
| CN112261693A (en) * | 2020-09-29 | 2021-01-22 | 上海擎昆信息科技有限公司 | Resource allocation method and device |
| CN112261692A (en) * | 2020-09-29 | 2021-01-22 | 上海擎昆信息科技有限公司 | Method and device for reserving resources |
| CN113115375B (en) * | 2021-03-17 | 2022-06-10 | 中国联合网络通信集团有限公司 | Downlink resource block reservation method and device |
| CN113055948B (en) * | 2021-03-17 | 2022-06-07 | 中国联合网络通信集团有限公司 | Downlink resource block reservation method and device |
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