CN102131298B - Method for allocating downlink resources - Google Patents
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- 238000013468 resource allocation Methods 0.000 claims abstract description 101
- 238000001228 spectrum Methods 0.000 claims description 17
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Abstract
The invention provides a method for allocating downlink resources. The method comprises the following steps of: preferentially allocating resources to UE (User Equipment) adopting distributed allocation in a time domain priority queue, and then allocating the resources to the UE adopting the centralized allocation by utilizing residual resources. Thus, the influence of a centralized allocation manner to resource allocation on the UE adopting the distributed allocation can be effectively avoided, and the problem that resource fragments are not fully utilized can be effectively solved.
Description
Technical field
The present invention relates to the resource distribution technology in the mobile communication system, particularly relate to the collocation method of downlink resource in Long Term Evolution (LTE) system.
Background technology
In the descending scheduling transmission course of existing LTE system, at first, by base station (eNB) a plurality of radio bearers of a plurality of UE are carried out prioritization; Then, select the UE of current scheduling according to ranking results, be selected UE Resources allocation, comprise that the physical resource for transmission is Physical Resource Block (PRB) and the Modulation and Coding Scheme (MCS) that adopts, and the dispatching distribution order by sending at Physical Downlink Control Channel (PDCCH), the resource information of distributing is notified to UE; At last, UE is according to the dispatching distribution order that receives at PDCCH, and at Physical Downlink Shared Channel (PDSCH) receive data, and the corresponding reception of feedback response message is ACK or nack message.
In said process, the pattern of Resources allocation has three kinds: Type 0, Type 1 and Type 2.Wherein, the allocation model of Type 0 can be distributed arbitrarily for adopting bitmap to indicate the interior RBG of whole bandwidth; The allocation model of Type 1 is for adopting RB in the bitmap indication group after double sampling is divided into groups; The allocation model of Type 2 is for adopting continuously transmission or distributed transmission, and wherein the interval of distributed transmission is relatively fixing under the different bandwidth configuration.
In actual applications, when adopting Type 2 allocation model, will there be the waste problem of resource fragmentation.Particularly, if adopt the priority of UE of distributed allocation lower, then may occur: because the UE of the high employing centralised allocation of front priority has taken the full wafer resource, current do not have suitable resource to be used for distributed transmission.Correspondingly, the UE of this employing distributed allocation can't be assigned to resource, like this, although just produced available free resource, but can't distribute the problem of utilization, namely resource fragmentation is not fully utilized, so, not only have influence on the performance of UE scheduled transmission, also brought the waste of resource fragmentation and the reduction of throughput of system.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of collocation method of downlink resource, and the method can effectively reduce the waste of resource fragmentation.
In order to achieve the above object, the technical scheme of the present invention's proposition is:
A kind of collocation method of downlink resource, the method may further comprise the steps:
A, determine that this when scheduling can be used for the Physical Downlink Shared Channel PDSCH resource of user equipment (UE) dedicated service scheduling;
B, to the UE to be dispatched of this scheduling, sort according to time domain priority, obtain the time domain priority query of UE to be dispatched;
The physical downlink control channel PDCCH resource that c, definite respectively UE to be dispatched use, and when having the identical UE to be dispatched of PDCCH resource, institute among the UE to be dispatched that described PDCCH resource is identical except the highest time domain priority remains to be dispatched UE, deletes from described time domain priority query;
D, judge the current UE that whether exists needs to adopt distributed resource allocation, if so, execution in step e then, otherwise execution in step f;
E, for the described UE that need to adopt distributed resource allocation, utilize the PDSCH resource that is currently available for the scheduling of UE dedicated service, adopting the distributed resource allocation mode is its Resources allocation; The described current UE that need to adopt distributed resource allocation is deleted from described time domain priority query, according to described distribution, upgrade the PDSCH resource that being currently available for the scheduling of UE dedicated service; Change steps d over to;
F, from the PDSCH resource that is currently available for UE dedicated service scheduling, determine can be used for the resource that centralized resources distributes, take continuous M Physical Resource Block PRB as base unit, the described resource that can be used for the centralized resources distribution is divided, obtain N physical resource module unit, wherein, M is the integral multiple of a corresponding PRB number of CQI information; For the UE to be dispatched that adopts centralized resources to distribute in the described time domain priority query, criterion according to frequency domain packet scheduling, described N physical resource module unit configured respectively to the to be dispatched UE corresponding with high-frequency domain priority separately, from described time domain priority query, delete the UE to be dispatched of configures physical Resource Block unit, according to described configuration, upgrade the PDSCH resource that is currently available for the scheduling of UE dedicated service;
G, judge the current PDSCH resource that can be used for UE dedicated service scheduling that whether exists, if there is no, then finish described method, if exist, then judge whether remain to be dispatched UE in the described time domain priority query, if having, then utilize the PDSCH resource that is currently available for the scheduling of UE dedicated service, be the UE Resources allocation to be dispatched in the current described time domain priority query, otherwise, described method finished.
In sum, the collocation method of the downlink resource that the present invention proposes is preferably the UE Resources allocation that adopts distributed allocation in the time domain priority query, and then utilizes remaining resource for adopting the UE Resources allocation of centralised allocation.So, can effectively avoid when being the UE Resources allocation of employing distributed allocation, being subject to the impact of centralised allocation mode, thereby can effectively solve the problem that resource fragmentation is not fully utilized.
Description of drawings
Fig. 1 is the schematic flow sheet of the embodiment of the invention one.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Consider with the distributed allocation mode and compare, the centralised allocation mode does not have strict requirement to the position of Physical Resource Block, namely as long as continuous resource block size meets the requirements.Based on this, main thought of the present invention is: be preferably the UE Resources allocation that adopts distributed allocation, and then utilize remaining resource for adopting the UE Resources allocation of centralised allocation.Like this, be when adopting the UE Resources allocation of distributed allocation, will can not be subjected to again the impact of centralised allocation mode, and the problem that resource fragmentation is not fully utilized occur.
Fig. 1 is the schematic flow sheet of the embodiment of the invention one.As shown in Figure 1, this embodiment mainly may further comprise the steps:
Step 101, determine that this when scheduling can be used for the Physical Downlink Shared Channel PDSCH resource of user equipment (UE) dedicated service scheduling.
Step 102, to the UE to be dispatched of this scheduling, sort according to time domain priority, obtain the time domain priority query of UE to be dispatched.
The physical downlink control channel PDCCH resource that step 103, definite respectively UE to be dispatched use, and when having the identical UE to be dispatched of PDCCH resource, institute among the UE to be dispatched that described PDCCH resource is identical except the highest time domain priority remains to be dispatched UE, deletes from described time domain priority query.
Step 104, judge the current UE that need to adopt distributed resource allocation that whether has, if so, then execution in step 105, otherwise execution in step 106.
Judge the current UE that needs to adopt distributed resource allocation that whether has described in the step 104, specifically can adopt following two kinds of methods to realize:
Method one may further comprise the steps:
From the time domain priority query of UE described to be dispatched, select the UE of the highest employing distributed resource allocation of current priority.
According to
Determine the PDSCH resource quantity M that the UE of the employing distributed resource allocation that described current priority is the highest can be assigned to
Res, wherein, M
TotalThe Physical Resource Block sum that the PDSCH resource of dispatching for the described UE of can be used for dedicated service comprises, M
kFor k in the time domain priority query of UE described to be dispatched UE the to be dispatched resource size that mean allocation arrives in front n scheduling, when dispatching first
Here, N
lBe the UE number that the default employing centralized resources that can dispatch simultaneously distributes, N
l≤ N
Mux, N
MuxBe the UE number in the time domain priority query of the UE described to be dispatched that obtains in the step 102; In actual applications, those skilled in the art can according to scene and the professional situation of cell deployment, determine suitable Nl value.For example, cover N for highway
lDesirable smaller value, even be taken as 0; And cover for typical city, then advise N
lBe about 0.8*N
MuxN
MuxValue suggestion be no more than 40.
Judge described M
ResGreater than zero, if so, the UE that then judges the employing distributed resource allocation that current priority is the highest is the described UE that needs to adopt distributed resource allocation, otherwise, judge the current UE that does not need to adopt distributed resource allocation.
Method two may further comprise the steps:
From the time domain priority query of UE described to be dispatched, select the UE of the highest employing distributed resource allocation of current priority;
Whether the numbering of UE in the time domain priority query of UE described to be dispatched of judging the employing distributed resource allocation that current priority is the highest is less than or equal to N
Mux, if so, judge that then the UE of the employing distributed resource allocation that current priority is the highest is the described UE that needs to adopt distributed resource allocation, otherwise, judge the current UE that does not need to adopt distributed resource allocation, wherein, N
MuxBe the UE number in the time domain priority query of the UE described to be dispatched that obtains among the step b.
Step 105, for the current UE that need to adopt distributed resource allocation, utilize the PDSCH resource that is currently available for the scheduling of UE dedicated service, adopting the distributed resource allocation mode is its Resources allocation; The described current UE that need to adopt distributed resource allocation is deleted from described time domain priority query, according to described distribution, upgrade the PDSCH resource that being currently available for the scheduling of UE dedicated service; Change step 104 over to.
Adopting the distributed resource allocation mode in this step is its Resources allocation, specifically can adopt following several method to realize.
Method one is specific as follows:
According to
Be defined as the described physical resource number of blocks N that needs the UE distribution of employing distributed resource allocation
Alc
Wherein, c
dBe default physical resource block threshold value coefficient, N
Lim itBe the physical resource block threshold value of default distributed resource allocation, B
mBe the cache size of the data to be sent of the described UE that need to adopt distributed resource allocation, S
Wide, mBe the described corresponding spectrum efficiency of broadband CQI information that needs the current feedback of UE of employing distributed resource allocation,
Resource element number for a default Physical Resource Block centering.
Here,
The maximum resource that defines distributed resource allocation is no more than c
dM
Common, this is to consider from validity and multi-user diversity gain angle that resource is distributed; N
LimitRestriction may exist the cavity to cause the fully situation of Resources allocation during then mainly for distributed resource allocation, this considers from the system bandwidth angle.
Preferably, 2≤c
d≤ 5, those skilled in the art can arrange according to system bandwidths different in the practical application described c
d, for example can adopt the system bandwidth shown in the following table 1 and c
dThe described c of correspondence setting
d
Table 1
| System bandwidth | c dThe setting of typical case's value |
| 1.4M | 1 |
| 3M | 1 |
| 5M | 2 |
| 10M | 3 |
| 15M | 4 |
| 20M | 5 |
Need to prove, the step 104 employing method one that is applicable to said method one realizes the described current the situation whether UE that needs the employing distributed resource allocation is arranged of judging, when adopting method two to realize describedly judging currently whether have when needing to adopt the UE of distributed resource allocation in the step 104, then need to according to
Be defined as the described physical resource number of blocks N that needs the UE distribution of employing distributed resource allocation
Alc
Wherein, c
dBe default physical resource block threshold value coefficient, B
mBe the cache size of the data to be sent of the described UE that need to adopt distributed resource allocation, S
Wide, mBe the described corresponding spectrum efficiency of broadband CQI information that needs the current feedback of UE of employing distributed resource allocation,
Resource element number for a default Physical Resource Block centering.
Method two is specific as follows:
According to
Estimate the Physical Resource Block number N that the described UE that needs to adopt distributed resource allocation need to take in the non-limited situation
Sub, wherein, B
mBe the cache size of the data to be sent of the described UE that need to adopt distributed resource allocation, S
Wide, mBe the described corresponding spectrum efficiency of broadband CQI information that needs the current feedback of UE of employing distributed resource allocation,
Resource element number for a default Physical Resource Block centering.
Judge N
SubWhether more than or equal to λ M
Res, if so, then according to
Be defined as the described physical resource number of blocks N that needs the UE distribution of employing distributed resource allocation
Alc, withdraw from described employing distributed resource allocation mode and be the process of its Resources allocation, wherein, N
Lim itBe the physical resource block threshold value of default distributed resource allocation, λ is default adjustment coefficient, 1≤λ≤5, c
dBe default physical resource block threshold value coefficient; Otherwise, carry out following step.
Definite utilization is currently available for the PDSCH resource of UE dedicated service scheduling, adopts the distributed resource allocation mode to distribute N
AlcDuring individual Physical Resource Block, described N
AlcIndividual Physical Resource Block is the spectrum efficiency S that carries of the CQI of corresponding subband respectively
Subn
According to described S
SubnCalculate equivalent spectrum efficiency S '
Subn
According to
Calculate N '
SubValue is { N respectively
Sub-β, N
Sub-β+1, N
Sub-β+2 ..., min{N
Sub+ β, M
Res, c
dDuring each element among the M}}, resulting w, wherein, β 〉=0 is default range coefficient;
According to N '
Alc=min{N
Lim it, N '
Sub-B, be defined as the described physical resource number of blocks N ' that needs the UE distribution of employing distributed resource allocation
Alc, wherein, N '
Sub-BFor among the described w near B
mThe corresponding N ' of w
Sub
Here, need to prove, the step 104 employing method one that is applicable to said method two realizes the described current the situation whether UE that needs the employing distributed resource allocation is arranged of judging, when adopting method two to realize describedly judging currently whether have when needing to adopt the UE of distributed resource allocation in the step 104, then need to make M
Res=c
dM, specific as follows:
According to
Estimate the Physical Resource Block number N that the described UE that needs to adopt distributed resource allocation need to take in the non-limited situation
Sub, wherein, B
mBe the cache size of the data to be sent of the described UE that need to adopt distributed resource allocation, S
Wide, mBe the described corresponding spectrum efficiency of broadband CQI information that needs the current feedback of UE of employing distributed resource allocation,
Resource element number for a default Physical Resource Block centering;
Judge N
SubWhether more than or equal to λ c
dM, if so, then according to
Be defined as the described physical resource number of blocks N that needs the UE distribution of employing distributed resource allocation
Alc, withdraw from described employing distributed resource allocation mode and be the process of its Resources allocation, wherein, N
Lim itBe the physical resource block threshold value of default distributed resource allocation, λ is default adjustment coefficient, 1≤λ≤5, c
dBe default physical resource block threshold value coefficient; Otherwise, carry out following step;
Definite utilization is currently available for the PDSCH resource of UE dedicated service scheduling, adopts the distributed resource allocation mode to distribute N
AlcDuring individual Physical Resource Block, described N
AlcIndividual Physical Resource Block is the spectrum efficiency S that carries of the CQI of corresponding subband respectively
Subn
According to described S
SubnCalculate equivalent spectrum efficiency S '
Subn
According to
Calculate N '
SubValue is { N respectively
Sub-β, N
Sub-β+1, N
Sub-β+2 ..., min{N
Sub+ β, c
dDuring each element among the M}}, resulting w, wherein, β 〉=0 is default range coefficient;
According to N '
Alc=min{N
Lim it, N '
Sub-B, be defined as the described physical resource number of blocks N ' that needs the UE distribution of employing distributed resource allocation
Alc, wherein, N '
Sub-BFor among the described w near B
mThe corresponding N ' of w
Sub
Step 106, determine to be currently available for the resource that centralized resources distributes that can be used in the PDSCH resource of UE dedicated service scheduling, take a continuous M Physical Resource Block as base unit, the described resource that can be used for the centralized resources distribution is divided, obtain N physical resource module unit, wherein, M is the integral multiple of a corresponding PRB number of CQI information; For the UE to be dispatched that adopts centralized resources to distribute in the described time domain priority query, criterion according to frequency domain packet scheduling, described N physical resource module unit configured respectively to the to be dispatched UE corresponding with high-frequency domain priority separately, from described time domain priority query, delete the UE to be dispatched of configures physical Resource Block unit, according to described configuration, upgrade the PDSCH resource that is currently available for the scheduling of UE dedicated service.
Step 107-109, judge the current PDSCH resource that can be used for UE dedicated service scheduling that whether exists, if there is no, then finish described method, if exist, then judge whether remain to be dispatched UE in the described time domain priority query, if having, then utilize the PDSCH resource that is currently available for the scheduling of UE dedicated service, be the UE Resources allocation to be dispatched in the current described time domain priority query, otherwise, described method finished.
Here, utilization is currently available for the PDSCH resource of UE dedicated service scheduling, be the UE Resources allocation to be dispatched in the current described time domain priority query, preferably, two kinds of implementations are arranged, a kind ofly be: directly distribute all PDSCH resources (i.e. all fragment resources) of being currently available for the scheduling of UE dedicated service to the highest UE to be dispatched of priority in the current described time domain priority query, its spectrum efficiency can calculate according to each PRB subband CQI, and its equivalent SINR can obtain according to methods such as linear averaging, geometric average, EESM, MIESM mappings.Also can directly adopt the mode of broadband CQI to calculate, concrete grammar is grasped by those skilled in the art, does not repeat them here; Another kind of mode is: consider the restriction of UE cache size, the above-mentioned distributed resource allocation account form of definite reference of resource size.Namely adopt the computational methods identical with step 105.
In actual applications, development along with the LTE system, system will support the concurrent multiple business of UE, for this situation, need to be before scheduling UE, the wireless bearer service that belongs to same UE is merged, when the resource that notice UE system configures, can be configured take UE as rank the PDCCH resource like this, so that compatible mutually with existing system.To achieve these goals, step 102 will realize as follows::
Step 1021, to each wireless bearer service of UE described to be dispatched, sort according to time domain priority, obtain the time domain priority query of described wireless bearer service,
Step 1022, from the time domain priority query of described wireless bearer service, select the wireless bearer service that belongs to same UE and can merge, and according to type of service, each wireless bearer service that belongs to same UE in the time domain priority query to described wireless bearer service merges or deletes, business in the time domain priority query of resulting new wireless bearer service is converted into corresponding UE to be dispatched, obtains the time domain priority query of UE described to be dispatched.
Here, from the time domain priority query of described wireless bearer service, select the wireless bearer service that belongs to same UE and can merge, and according to type of service, each wireless bearer service that belongs to same UE in the time domain priority query to described wireless bearer service merges or deletes, and specifically can adopt following method to realize:
Step 10221, from the time domain priority query of described wireless bearer service, select current not being traversed and wireless bearer service that time domain priority is the highest, determine the corresponding UE of this wireless bearer service, from the time domain priority query of described wireless bearer service, select the wireless bearer service that all belong to current determined UE, if the described wireless bearer service number that belongs to current determined UE is more than two, then therefrom select satisfied:
Wireless bearer service as current candidate's wireless bearer service to be combined.
Wherein, M
TotalCan be used for the Physical Resource Block number in the PDSCH resource of UE dedicated service scheduling when dispatching for this, u
kM is k UE Physical Resource Block number that mean allocation arrives when front v scheduling in the time domain priority query of described wireless bearer service, i is the Position Number of wireless bearer service in the time domain priority query of described wireless bearer service, j for according to the descending of priority to the business ordering in the described wireless bearer service that belongs to current determined UE after, wireless bearer service is residing Position Number therein, described v is the default scheduling times parameter that is used for the Physical Resource Block number that statistical average is assigned to, the too conference that v arranges causes complexity to increase, too littlely then can affect accuracy, those skilled in the art can arrange suitable value by emulation according to actual needs.
Step 10222, if current candidate's wireless bearer service to be combined is the business that adopts distributed resource allocation, then described candidate's wireless bearer service to be combined is merged into a wireless bearer service, with other business except the highest business of priority in described candidate's wireless bearer service to be combined, from the time domain priority query of described wireless bearer service, delete, the priority of the wireless bearer service after the merging is the limit priority in described candidate's wireless bearer service to be combined, and total cache size of the wireless bearer service after the merging is all buffer memory sums of described candidate's wireless bearer service to be combined;
If when having simultaneously the business that adopts distributed resource allocation in current candidate's wireless bearer service to be combined and adopting professional that centralized resources distributes, then with other business except the highest business of priority in current candidate's wireless bearer service to be combined, from the time domain priority query of described wireless bearer service, delete;
If current candidate's wireless bearer service to be combined is the business that adopts centralized resources to distribute, then because it adopts centralized resources to distribute, here do not need to delete in to time domain priority query for these candidate's wireless bearer services again or merge.
Step 10223, judge in the time domain priority query of described wireless bearer service whether have the current wireless bearer service that is not traversed, if so, then execution in step 10221.
In order to reduce algorithm complex, the condition that needs in the above-mentioned steps 10221 to satisfy can also be by formula i≤N
MuxSubstitute, wherein, i is the Position Number of wireless bearer service in the time domain priority query of described wireless bearer service, N
MuxUE number when entering step 106 in the described time domain priority query, it is the UE number that outputs to the frequency domain dispatching operation after the ordering of time domain priority query, its objective is in order to limit the complexity of frequency domain dispatching, under the 20MHz system bandwidth, advise that its value is no more than 40, for other configured bandwidth, such as 3MHz, 5MHz, 10MHz, 20MHz can equal proportion calculate.
In sum, above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the collocation method of a downlink resource is characterized in that, the method may further comprise the steps:
A, determine that this when scheduling can be used for the Physical Downlink Shared Channel PDSCH resource of user equipment (UE) dedicated service scheduling;
B, to the UE to be dispatched of this scheduling, sort according to time domain priority, obtain the time domain priority query of UE to be dispatched;
The physical downlink control channel PDCCH resource that c, definite respectively UE to be dispatched use, and when having the identical UE to be dispatched of PDCCH resource, institute among the UE to be dispatched that described PDCCH resource is identical except the highest time domain priority remains to be dispatched UE, deletes from described time domain priority query;
D, judge the current UE that whether exists needs to adopt distributed resource allocation, if so, execution in step e then, otherwise execution in step f;
E, for the described UE that need to adopt distributed resource allocation, utilize the PDSCH resource that is currently available for the scheduling of UE dedicated service, adopting the distributed resource allocation mode is its Resources allocation; The current described UE that need to adopt distributed resource allocation is deleted from described time domain priority query, according to described distribution, upgrade the PDSCH resource that being currently available for the scheduling of UE dedicated service; Change steps d over to;
F, from the PDSCH resource that is currently available for UE dedicated service scheduling, determine can be used for the resource that centralized resources distributes, take continuous M Physical Resource Block PRB as base unit, the described resource that can be used for the centralized resources distribution is divided, obtain N physical resource module unit, wherein, M is the integral multiple of a corresponding PRB number of CQI information; For the UE to be dispatched that adopts centralized resources to distribute in the described time domain priority query, criterion according to frequency domain packet scheduling, described N physical resource module unit configured respectively to the to be dispatched UE corresponding with high-frequency domain priority separately, from described time domain priority query, delete the UE to be dispatched of configures physical Resource Block unit, according to described configuration, upgrade the PDSCH resource that is currently available for the scheduling of UE dedicated service;
G, judge the current PDSCH resource that can be used for UE dedicated service scheduling that whether exists, if there is no, then finish described method, if exist, then judge whether remain to be dispatched UE in the described time domain priority query, if having, then utilize the PDSCH resource that is currently available for the scheduling of UE dedicated service, be the UE Resources allocation to be dispatched in the current described time domain priority query, otherwise, described method finished;
Wherein, described step b comprises:
B1, to each wireless bearer service of UE described to be dispatched, sort according to time domain priority, obtain the time domain priority query of described wireless bearer service,
B2, from the time domain priority query of described wireless bearer service, select the wireless bearer service that belongs to same UE and can merge, and according to type of service, each wireless bearer service that belongs to same UE in the time domain priority query to described wireless bearer service merges or deletes, business in the time domain priority query of resulting new wireless bearer service is converted into corresponding UE to be dispatched, obtains the time domain priority query of UE described to be dispatched.
2. method according to claim 1 is characterized in that, judges in the described steps d that the current UE of a needs employing distributed resource allocation that whether exists is:
D1, from the time domain priority query of UE described to be dispatched, select the UE of the highest employing distributed resource allocation of current priority;
D2, according to
Determine the PDSCH resource quantity M that the UE of the employing distributed resource allocation that described current priority is the highest can be assigned to
Res, wherein, M
TotalThe Physical Resource Block sum that the PDSCH resource of dispatching for the described UE of can be used for dedicated service comprises, M
kFor k in the time domain priority query of UE described to be dispatched UE the to be dispatched resource size that mean allocation arrives in front n scheduling, when dispatching first
N
lBe the UE number that the default employing centralized resources that can dispatch simultaneously distributes, N
l≤ N
Mux, N
MuxBe the UE number in the time domain priority query of the UE described to be dispatched that obtains among the step b;
D3, judge described M
ResGreater than zero, if so, the UE that then judges the employing distributed resource allocation that current priority is the highest is the described UE that needs to adopt distributed resource allocation, otherwise, judge the current UE that does not need to adopt distributed resource allocation.
3. method according to claim 1 is characterized in that, judges in the described steps d that the current UE of a needs employing distributed resource allocation that whether exists is:
D1, from the time domain priority query of UE described to be dispatched, select the UE of the highest employing distributed resource allocation of current priority;
D2, judge whether the numbering of UE in the time domain priority query of UE described to be dispatched of the employing distributed resource allocation that current priority is the highest is less than or equal to N
Mux, if so, judge that then the UE of the employing distributed resource allocation that current priority is the highest is the described UE that needs to adopt distributed resource allocation, otherwise, judge the current UE that does not need to adopt distributed resource allocation, wherein, N
MuxBe the UE number in the time domain priority query of the UE described to be dispatched that obtains among the step b.
4. method according to claim 2 is characterized in that, adopts the distributed resource allocation mode for its Resources allocation to be among the described step e:
According to
Be defined as the described physical resource number of blocks N that needs the UE distribution of employing distributed resource allocation
Alc
Wherein, c
dBe default physical resource block threshold value coefficient, N
LimitBe the physical resource block threshold value of default distributed resource allocation, B
mBe the cache size of the data to be sent of the described UE that need to adopt distributed resource allocation, S
Wide, mBe the described corresponding spectrum efficiency of broadband CQI information that needs the current feedback of UE of employing distributed resource allocation,
Resource element number for a default Physical Resource Block centering.
5. method according to claim 3 is characterized in that, adopts the distributed resource allocation mode for its Resources allocation to be among the described step e:
According to
Be defined as the described physical resource number of blocks N that needs the UE distribution of employing distributed resource allocation
Alc
Wherein, c
dBe default physical resource block threshold value coefficient, B
mBe the cache size of the data to be sent of the described UE that need to adopt distributed resource allocation, N
LimitBe the physical resource block threshold value of default distributed resource allocation, S
Wide, mBe the described corresponding spectrum efficiency of broadband CQI information that needs the current feedback of UE of employing distributed resource allocation,
Resource element number for a default Physical Resource Block centering.
6. method according to claim 2 is characterized in that, adopts the distributed resource allocation mode for its Resources allocation to be among the described step e:
E1, basis
Estimate the Physical Resource Block number N that the described UE that needs to adopt distributed resource allocation need to take in the non-limited situation
Sub, wherein, B
mBe the cache size of the data to be sent of the described UE that need to adopt distributed resource allocation, S
Wide, mBe the described corresponding spectrum efficiency of broadband CQI information that needs the current feedback of UE of employing distributed resource allocation,
Resource element number for a default Physical Resource Block centering;
E2, judgement N
SubWhether more than or equal to λ M
Res, if so, then according to
Be defined as the described physical resource number of blocks N that needs the UE distribution of employing distributed resource allocation
Alc, withdraw from described employing distributed resource allocation mode and be the process of its Resources allocation; Wherein, N
LimitBe the physical resource block threshold value of default distributed resource allocation, λ is default adjustment coefficient, 1≤λ≤5, c
dBe default physical resource block threshold value coefficient; Otherwise, execution in step e3;
E3, definite PDSCH resource that is currently available for the scheduling of UE dedicated service of utilizing adopt the distributed resource allocation mode to distribute N
AlcDuring individual Physical Resource Block, described N
AlcIndividual Physical Resource Block is the spectrum efficiency S that carries of the CQI of corresponding subband respectively
Subn
E4, according to described S
SubnCalculate equivalent spectrum efficiency S '
Subn
E5, according to
Calculate N '
SubValue is { N respectively
Sub-β, N
Sub-β+1, N
Sub-β+2 ..., min{N
Sub+ β, M
Res, c
dDuring each element among the M}}, resulting w, wherein, β 〉=0 is default range coefficient;
E6, according to N '
Alc=min{N
Limit, N '
Sub-B, be defined as the described physical resource number of blocks N ' that needs the UE distribution of employing distributed resource allocation
Alc, wherein, N '
Sub-BFor among the described w near B
mThe corresponding N ' of w
Sub
7. method according to claim 3 is characterized in that, adopts the distributed resource allocation mode for its Resources allocation to be among the described step e:
E1, basis
Estimate the Physical Resource Block number N that the described UE that needs to adopt distributed resource allocation need to take in the non-limited situation
Sub, wherein, B
mBe the cache size of the data to be sent of the described UE that need to adopt distributed resource allocation, S
Wide, mBe the described corresponding spectrum efficiency of broadband CQI information that needs the current feedback of UE of employing distributed resource allocation,
Resource element number for a default Physical Resource Block centering;
E2, judgement N
SubWhether more than or equal to λ c
dM, if so, then according to
Be defined as the described physical resource number of blocks N that needs the UE distribution of employing distributed resource allocation
Alc, withdraw from described employing distributed resource allocation mode and be the process of its Resources allocation; Wherein, N
LimitBe the physical resource block threshold value of default distributed resource allocation, λ is default adjustment coefficient, 1≤λ≤5, c
dBe default physical resource block threshold value coefficient; Otherwise, execution in step e3;
E3, definite PDSCH resource that is currently available for the scheduling of UE dedicated service of utilizing adopt the distributed resource allocation mode to distribute N
AlcDuring individual Physical Resource Block, described N
AlcIndividual Physical Resource Block is the spectrum efficiency S that carries of the CQI of corresponding subband respectively
Subn
E4, according to described S
SubnCalculate equivalent spectrum efficiency S '
Subn
E5, according to
, calculate N '
SubValue is { N respectively
Sub-β, N
Sub-β+1, N
Sub-β+2 ..., min{N
Sub+ β, c
dDuring each element among the M}}, resulting w, wherein, β 〉=0 is default range coefficient;
E6, according to N '
Alc=min{N
Limit, N '
Sub-B, be defined as the described physical resource number of blocks N ' that needs the UE distribution of employing distributed resource allocation
Alc, wherein, N '
Sub-BFor among the described w near B
mThe corresponding N ' of w
Sub
8. method according to claim 1, it is characterized in that, from the time domain priority query of described wireless bearer service, select the wireless bearer service that belongs to same UE and can merge among the described step b2, and according to type of service, each wireless bearer service that belongs to same UE in the time domain priority query to described wireless bearer service merges or deletes and comprises:
B21, from the time domain priority query of described wireless bearer service, select current not being traversed and wireless bearer service that time domain priority is the highest, determine the corresponding UE of this wireless bearer service, from the time domain priority query of described wireless bearer service, select the wireless bearer service that all belong to current determined UE, if the described wireless bearer service number that belongs to current determined UE is more than two, then therefrom select satisfied:
Wireless bearer service as current candidate's wireless bearer service to be combined, wherein, M
TotalCan be used for the Physical Resource Block number in the PDSCH resource of UE dedicated service scheduling when dispatching for this, u
kM is k UE Physical Resource Block number that mean allocation arrives when front v scheduling in the time domain priority query of described wireless bearer service,
iBe the Position Number of wireless bearer service in the time domain priority query of described wireless bearer service,
jFor according to the descending of priority to the business ordering in the described wireless bearer service that belongs to current determined UE after, wireless bearer service is residing Position Number therein;
B22, if current candidate's wireless bearer service to be combined is the business that adopts distributed resource allocation, then described candidate's wireless bearer service to be combined is merged into a wireless bearer service, with other business except the highest business of priority in described candidate's wireless bearer service to be combined, from the time domain priority query of described wireless bearer service, delete, the priority of the wireless bearer service after the merging is the limit priority in described candidate's wireless bearer service to be combined, and total cache size of the wireless bearer service after the merging is all buffer memory sums of described candidate's wireless bearer service to be combined;
If when having simultaneously the business that adopts distributed resource allocation in current candidate's wireless bearer service to be combined and adopting professional that centralized resources distributes, then with other business except the highest business of priority in current candidate's wireless bearer service to be combined, from the time domain priority query of described wireless bearer service, delete;
B23, judge in the time domain priority query of described wireless bearer service whether have the current wireless bearer service that is not traversed, if so, execution in step b21 then.
9. method according to claim 1, it is characterized in that, from the time domain priority query of described wireless bearer service, select the wireless bearer service that belongs to same UE and can merge among the described step b2, and according to type of service, each wireless bearer service that belongs to same UE in the time domain priority query to described wireless bearer service merges or deletes and comprises:
B21, from the time domain priority query of described wireless bearer service, select current not being traversed and wireless bearer service that time domain priority is the highest, determine the corresponding UE of this wireless bearer service, from the time domain priority query of described wireless bearer service, select the wireless bearer service that all belong to current determined UE, if the described wireless bearer service number that belongs to current determined UE is more than two, then therefrom select satisfied: i≤N
MuxWireless bearer service as current candidate's wireless bearer service to be combined, wherein, i is the Position Number of wireless bearer service in the time domain priority query of described wireless bearer service, N
MuxUE number when entering step f in the described time domain priority query;
B22, if current candidate's wireless bearer service to be combined is the business that adopts distributed resource allocation, then described candidate's wireless bearer service to be combined is merged into a wireless bearer service, with other business except the highest business of priority in described candidate's wireless bearer service to be combined, from the time domain priority query of described wireless bearer service, delete, the priority of the wireless bearer service after the merging is the limit priority in described candidate's wireless bearer service to be combined, and total cache size of the wireless bearer service after the merging is all buffer memory sums of described candidate's wireless bearer service to be combined;
If when having simultaneously the business that adopts distributed resource allocation in current candidate's wireless bearer service to be combined and adopting professional that centralized resources distributes, then with other business except the highest business of priority in current candidate's wireless bearer service to be combined, from the time domain priority query of described wireless bearer service, delete;
B23, judge in the time domain priority query of described wireless bearer service whether have the current wireless bearer service that is not traversed, if so, execution in step b21 then.
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| CN103428862A (en) * | 2012-05-23 | 2013-12-04 | 华为技术有限公司 | Resource distribution method and device |
| CN103079279B (en) * | 2012-12-20 | 2016-12-28 | 上海大唐移动通信设备有限公司 | A kind of resource allocation methods and device |
| CN106413113B (en) * | 2016-10-26 | 2019-10-29 | 天津大学 | A kind of downlink dispatching method based on LTE-Advanced relay system |
| CN109165045A (en) * | 2018-08-09 | 2019-01-08 | 网宿科技股份有限公司 | A kind of method and apparatus for the hardware configuration adjusting server |
| CN112804757B (en) * | 2020-12-30 | 2023-05-02 | 联想未来通信科技(重庆)有限公司 | Switching method and device of frequency domain resource allocation types and readable storage medium |
| CN115103450B (en) * | 2022-08-24 | 2023-01-13 | 中国信息通信研究院 | Multi-service time slot allocation method and equipment |
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| CN101049040A (en) * | 2004-09-24 | 2007-10-03 | 诺基亚公司 | Resource allocation in a communication system |
| CN101562839A (en) * | 2008-04-14 | 2009-10-21 | 华为技术有限公司 | Method and device for allocating resource |
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| CN101562839A (en) * | 2008-04-14 | 2009-10-21 | 华为技术有限公司 | Method and device for allocating resource |
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