CN102202407B - Method and equipment for distributing resource - Google Patents

Abstract

The invention discloses a method and equipment for distributing resource, relating to the field of radio communication and being used for reducing complexity of resource distribution. The method in the invention comprises the following steps of: determining services participating in current sub-frame resource distribution in services participating in current sub-frame time domain scheduling; determining a terminal corresponding to each service participating in the current sub-frame resource distribution as a terminal participating in the current sub-frame resource distribution; according to the priority of each service, determining a priority order for distributing resource to each terminal participating in the current sub-frame resource distribution; and, according to the priority order, distributing transmission resource to each terminal participating in the current sub-frame resource in turn. By means of the method and equipment disclosed by the invention, the complexity of the resource distribution can be reduced effectively.

Description

Resource allocation methods and equipment

Technical field

The present invention relates to wireless communication field, relate in particular to a kind of resource allocation methods and equipment.

Background technology

Long Term Evolution (LTE) system is a system that adopts shared channel to transmit, and maximum can be supported the system bandwidth of 20MHz.Descending employing OFDM (Orthogonal Frequency DivisionMultiple Acces, OFDMA), up employing single-carrier frequency division multiple access (Single Carrier-FrequencyDivision Multiple Access, SC-FDMA), can be that terminal (User Equipment, UE) selects suitable running time-frequency resource to carry out up-downgoing transfer of data neatly by the mode of scheduling.

In order to utilize more efficiently the Radio Resource of system, LTE system has been introduced the mechanism of shared channel, reasonably utilizes the Radio Resource of system by dynamic dispatching.Therefore, the performance quality of dispatching algorithm is by the performance that directly has influence on LTE system and can bring into play.According to the feature of LTE system, dispatching algorithm can be decomposed into two large steps conventionally: instant domain scheduling (participating in user or the service priority that resource is distributed for determining) and frequency domain dispatching (being resource allocation process).

In LTE system, assignable physical resource unit is Physical Resource Block (Physical ResourceBlock, PRB), and the physical resource that in a time slot frequency domain, continuous width is 180kHz is called a PRB.For the Physical Downlink Shared Channel in LTE system (Physical downlink shared channel, PDSCH), standard definition three kinds of resources distribute type: type0, type1, type2.Wherein to distribute type be to using the smallest particles degree that Physical Resource Block group (Physical Resource Block Group, PRBG) distributes as resource to type0 resource, and each PRBG comprises one group of continuous distribution PRB, and the size of PRBG is relevant to system bandwidth; It is according to certain regular partition, to be several subset of resources by all PRBG that type1 resource is distributed type, the number of subset of resources is identical with the size of PRBG, regulation is that the resource that a UE distributes must guarantee in a subset of resources, and the minimum resource allocation granularity that type1 supports is 1 PRB; Type2 resource distributes type to require to distribute to mono-group of continuous virtual resource blocks (VirtualResource Block of a UE, VRB), and support centralized (Localized) and distributed (Distributed) these two kinds of VRB to the resource mapping method of PRB, under Localized resource mapping method, corresponding PRB is also continuous; Under Distributed resource mapping method, corresponding PRB is discontinuous.For the Physical Uplink Shared Channel in LTE system (Physical Uplink Shared Channel, PUSCH), in order to support the single-carrier property of uplink, reduce peak-to-average force ratio, the resource of distributing to a UE requires continuously on frequency domain.

In LTE system, downlink scheduler and uplink scheduling device are all positioned at the medium access of base station and control (Medium Access Control, MAC) layer.For descending, the buffer state information of each radio bearer (Radio Bearer, RB) can accurately be known in base station, and downlink scheduler can be dispatched according to the buffer state of each RB.For up, data send buffer area and are positioned at UE side, in order to allow base station dispatcher know terminal suspending zone state, need UE to carry out reporting cached state (Buffer Status Reports, BSR), to support the packet scheduling of service quality (QoS).The mode that terminal to report BSR adopts grouping to report, with logic channel group (Logical Channel Group, LCG) for carrying out BSR, unit reports, four groups of LCG in standard, have been defined, logic channel (Logical Channel, LG) by Radio Resource, control (Radio Resource Control with the mapping relations of LCG, RRC) layer configuration, the LG with different Q os attribute is mapped to respectively different LCG, and uplink scheduling device can carry out reasonably scheduling according to each LCG buffer state of terminal to report and distribute with resource.

A characteristic feature of wireless communication system is exactly that channel variation is very fast, and in order more effectively to utilize frequency spectrum resource, channel quality indication (Channel QualityIndicator, CQI) information of user need to be known in base station when dispatching.Descending CQI is measured and obtains and report base station based on descending pilot frequency by UE, and the CQI that base station can report based on UE completes descending scheduling.For up, base station obtains up CQI by user's detection reference signal (Sounding Reference Signal, SRS) transmission.Base station just can complete uplink scheduling by the up CQI based on recording like this.

At scheduler, complete after scheduling, base station sends dispatch by Physical Downlink Control Channel (Physical DownlinkControl Channel, PDCCH) to the UE being scheduled, the situation that indexed resource distributes, the corresponding dispatch of each UE.

Hunger phenomenon for fear of RB, standard regulation is for every logic channel definition of logical channels priority and preferential bit rate (Prioritised Bit Rate, PBR) parameter, the resource of carrying out between the inner RB of UE according to the resource indication of base station assigns at UE is divided timing, first according to priority of logical channels order corresponding to RB, distribute successively the resource that meets PBR, after the first round, resource distribution finished, if also have surplus resources, then distribute remaining resource according to the remaining data that the priority orders of RB counterlogic channel is followed successively by each RB buffer area.

Base station is used with above-mentioned standard and is stipulated similar method when carrying out up-downgoing scheduling at present: according to certain principle, generate RB (descending)/radio bearer group (Radio Bearer Group, RBG) (up) is the dispatching priority queue of LCG, and resource minute partition two-wheeled carries out: the first round is first sequentially followed successively by according to definite business dispatching priority the resource that each traffic assignments meets PBR; After first round resource allocation result, if system remains shared resource in addition, then be followed successively by the remaining resource of each traffic assignments according to the priority orders of business, until business does not have data or there is no available shared resource.

In realizing process of the present invention, inventor finds to exist in prior art following technical problem:

Current shared channel resources distribution method is followed successively by each traffic assignments resource according to the priority orders of business, and because a resource minute partition two-wheeled carries out, and resource distribute to be for each RB of UE or RBG, therefore above-mentioned resource is distributed the situation of repeatedly carrying out resource distribution for same UE in a Transmission Time Interval (Transmission Time Interval, TTI) that exists.The implementation complexity of this resource allocation methods is higher.In addition, consider LTE system descending type2 resource distribute resource under type distribute and ascending resource distribution need to guarantee to distribute in same subframe the VRB resource of identical UE continuous, therefore the success rate of this resource allocation methods is not high, may occur dividing the situation less than resource because cannot find with the continuous available resource of the resource of distributing to this UE, or be difficult to carry out resource distribution in strict accordance with the QoS demand that guarantees each business, therefore it can not well guarantee each UE, the QoS of each business, cause resource utilization ratio low, entire system performance and user experience decline.

Summary of the invention

The embodiment of the present invention provides a kind of resource allocation methods and equipment, the complexity of distributing for reducing shared channel resources.

A resource allocation methods, the method comprises:

While determining the current subframe of participation, in the business of domain scheduling, participate in the business that current sub-frame resources is distributed;

The corresponding terminal of each business that participates in current sub-frame resources distribution is defined as participating in the terminal that current sub-frame resources is distributed, and determines the priority orders of carrying out resource distribution to participating in each terminal of current sub-frame resources distribution according to the priority of described each business;

According to described priority orders, be followed successively by and participate in each terminal distribution transfer resource that current sub-frame resources is distributed.

A base station, this base station comprises:

Business determining unit, while participating in current subframe for determining, the business of domain scheduling participates in the business that current sub-frame resources is distributed;

UE priority determining unit, be used for the corresponding terminal of each business that participates in current sub-frame resources distribution to be defined as participating in the terminal that current sub-frame resources is distributed, and determine the priority orders of carrying out resource distribution to participating in each terminal of current sub-frame resources distribution according to the priority of described each business;

Resource allocation unit, for according to described priority orders, is followed successively by and participates in each terminal distribution transfer resource that current sub-frame resources is distributed.

In the present invention, while determining the current subframe of participation, in the business of domain scheduling, participate in the business that current sub-frame resources is distributed, according to the priority that participates in each business of current sub-frame resources distribution, determine the priority orders that terminal corresponding to this each business carried out to resource distribution, then according to this priority orders, be each terminal difference Resources allocation, visible, with in prior art, according to the priority orders of business, be followed successively by each traffic assignments resource, and a resource minute partition two-wheeled carries out, when the corresponding a plurality of business of a UE, need to repeatedly for carrying out resource distribution, this UE compare, in the present invention, for terminal, carry out resource distribution, and only carry out first resource distribution for a terminal, the complexity that resource is distributed has obtained effectively reducing.

Accompanying drawing explanation

The method flow schematic diagram that Fig. 1 provides for the embodiment of the present invention;

Fig. 2 A is the RB priority query schematic diagram in the embodiment of the present invention one;

Fig. 2 B is the UE priority query schematic diagram in the embodiment of the present invention one;

Fig. 2 C is the RB priority query schematic diagram in the embodiment of the present invention two;

Fig. 2 D is the UE priority query schematic diagram in the embodiment of the present invention two;

The architecture of base station schematic diagram that Fig. 3 provides for the embodiment of the present invention.

Embodiment

The complexity of distributing in order to reduce shared channel resources, the embodiment of the present invention provides a kind of resource allocation methods, in this method, while first determining the current subframe of participation, in the business of domain scheduling, participate in the business that current sub-frame resources is distributed, then according to the priority that participates in each business of current sub-frame resources distribution, determining the priority orders that terminal corresponding to this each business carried out to resource distribution, is finally each terminal Resources allocation respectively according to this priority orders.

Referring to Fig. 1, the resource allocation methods that the embodiment of the present invention provides, specifically comprises the following steps:

Step 10: participate in the business that current sub-frame resources is distributed in the business of domain scheduling while determining the current subframe of participation, this business can be for one or more;

Step 11: the corresponding terminal of each business that participates in current sub-frame resources distribution is defined as participating in the terminal that current sub-frame resources is distributed, and determines the priority orders of carrying out resource distribution to participating in each terminal of current sub-frame resources distribution according to the priority of described each business;

Step 12: according to described priority orders, be followed successively by and participate in each terminal distribution transfer resource that current sub-frame resources is distributed, and adopt once the mode for the traffic assignments resource of the current sub-frame resources distribution of all participations corresponding to this terminal while be each terminal distribution transfer resource.

The concrete methods of realizing of step 10 can be as follows:

First, determine need to be when participating in current subframe Physical Resource Block (PRB) number of each traffic assignments of domain scheduling;

Then, be the priority of the PRB number of this each traffic assignments, this each business and the total number of PRB that Physical Shared Channel takies as required, determine the business that participates in current sub-frame resources distribution in this each business.Concrete, during by the current subframe of participation, the business of domain scheduling is according to priority order sequence from high to low, then according to this order to sequence after each business, whether judgement need to be less than or equal to for the PRB number of this traffic assignments the PRB number that current Physical Shared Channel can be used, if, this business is defined as participating in the business that current sub-frame resources is distributed, otherwise, deterministic process stopped.For example, while participating in current subframe, the business of domain scheduling comprises business 1 and business 2 and business 3, and priority reduces successively, for business 1, need to for the PRB number of this traffic assignments, be 3, be less than current Physical Shared Channel can with PRB number be the total number 7 of PRB that Physical Shared Channel takies, therefore this business 1 is defined as participate in the business that current sub-frame resources is distributed; For business 2, need to for the PRB number of this traffic assignments, be also 3, be less than the PRB number 4 that current Physical Shared Channel can use (be the total number 7 of PRB that Physical Shared Channel takies deduct need to be the PRB number 3 that business 1 is distributed), therefore this business 2 be defined as participate in the business that current sub-frame resources is distributed; For business 3, need to for the PRB number of this traffic assignments, be 4, be greater than the PRB number 1 that current Physical Shared Channel can use (be the total number 7 of PRB that Physical Shared Channel takies deduct need to be the PRB number 6 that business 1 and business 2 are distributed), therefore this business 3 is not defined as participating in the business that current sub-frame resources is distributed, and stops deterministic process.

Certainly, the realization of step 10 is not limited to said method, any when participating in current subframe the business of domain scheduling the selected method that participates in the business that current sub-frame resources distributes all in protection scope of the present invention.For example, can be when participating in current subframe in the business of domain scheduling random selected a plurality of business as the business that participates in current sub-frame resources and distribute.

Above-mentioned determine need to be when participating in current subframe the PRB number of each traffic assignments of domain scheduling, its specific implementation can be as follows:

Each business of domain scheduling during for the current subframe of participation: the data volume of determining this service needed transmission according to the satisfied service quality of this service needed (QoS); Then according to this data volume and the corresponding terminal of this business, average channel quality indication (CQI) value on system full bandwidth determines need to be the PRB number of this traffic assignments, concrete, first determine MCS grade corresponding to this CQI value, then by searching MCS form, determine and under this MCS grade, transmit the needed PRB number of above-mentioned data volume.

In step 11, determine the priority orders of carrying out resource distribution to participating in each terminal of current sub-frame resources distribution according to the priority of each business, its specific implementation can be as follows:

First, for each terminal that participates in current sub-frame resources distribution, determine the business that the current sub-frame resources of this terminal participation corresponding, that priority is the highest is distributed, the priority using the priority of this business as this terminal;

Then, each terminal that participates in current sub-frame resources distribution is sorted according to terminal PRI order from high to low, this ranking results is the priority orders of carrying out resource distribution to participating in each terminal of current sub-frame resources distribution.

Certainly, determine the priority orders of carrying out resource distribution to participating in each terminal of current sub-frame resources distribution, its realization is not limited to said method, for example, lower priority in the business that also can distribute according to the current sub-frame resources of the corresponding participation of each terminal, is defined as the priority orders that each terminal is carried out resource distribution.

In step 12, when each the terminal distribution transfer resource distributing for the current sub-frame resources of participation, its specific implementation can adopt following two kinds of modes:

The first, CQI value on the data volume of each service needed transmission distributing according to the current sub-frame resources of participation corresponding to terminal and each PRB that this terminal takies at Physical Shared Channel, determine number and the position of the PRB that distributes to this terminal, and be this terminal distribution PRB according to definite result.

The second, for before participating in the terminal distribution transfer resource of current sub-frame resources distribution, determines the resource adjustment factor, and it is to be more than or equal to 1 integer that this resource is adjusted factor; The PRB number of each traffic assignments of then adjusting factor according to this resource and need to distributing for the current sub-frame resources of the corresponding participation of this terminal, is defined as the PRB number higher limit of this terminal distribution PRB; CQI value on the data volume of each service needed transmission finally distributing according to this PRB number higher limit, the current sub-frame resources of participation corresponding to this terminal and each PRB that this terminal takies at Physical Shared Channel, determine number and the position of the PRB that distributes to this terminal, according to definite result, be this terminal distribution PRB, this number is less than or equal to definite PRB number higher limit.

Can determine resource adjustment factor-beta according to following formula one or formula two:

Formula one: $\left\{\begin{array}{c}\mathrm{\β}=f(N_{\mathrm{PRB}}^{\mathrm{GBR}},N_{\mathrm{PRB}}^{\mathrm{NRBG}},N_{\mathrm{PRB}}^{\mathrm{PSCH}})=N_{\mathrm{PRB}}^{\mathrm{PSCH}}/(N_{\mathrm{PRB}}^{\mathrm{GBR}}+N_{\mathrm{PRB}}^{\mathrm{NRBG}})\\ \mathrm{\β}\≥1\end{array}\right.;$

Formula two: $\left\{\begin{array}{c}\mathrm{\β}=g(N_{\mathrm{PRB}}^{\mathrm{GBR}},N_{\mathrm{PRB}}^{\mathrm{NRBG}},N_{\mathrm{PRB}}^{\mathrm{PSCH}})=(N_{\mathrm{PRB}}^{\mathrm{PSCH}}-N_{\mathrm{PRB}}^{\mathrm{GBR}})/N_{\mathrm{PRB}}^{\mathrm{NRBG}}\\ \mathrm{\β}\≥1\end{array}\right.;$

Wherein, N _pRB ^gBRneed to be for participating in total number current sub-frame resources distribution, that type of service is each traffic assignments PRB of assurance bit rate (GBR); N _pRB ^nGBRbeing need to be that current sub-frame resources be distributed for participating in, type of service is total number of each traffic assignments PRB of non-assurance bit rate (NGBR); N _pRB ^pSCHthe total number of PRB taking for described Physical Shared Channel.

Can be defined as according to following formula three, formula four, formula five or formula six the PRB number higher limit N of this terminal distribution PRB _{pRB, max, UE}:

Formula three: $N_{\mathrm{PRB},\max ,\mathrm{UE}}=\underset{k=1}{\overset{M}{\mathrm{\Σ}}}\mathrm{\β}\·N_{\mathrm{PRB},K};$

Formula four: $N_{\mathrm{PRB},\max ,\mathrm{UE}}=\underset{k=1}{\overset{M}{\mathrm{\Σ}}}\mathrm{\β}\·N_{\mathrm{PRB},K}+\mathrm{\ΔL};$

Formula five: $N_{\mathrm{PRB},\max ,\mathrm{UE}}=\underset{i=1}{\overset{P}{\mathrm{\Σ}}}\mathrm{\β}\·N_{\mathrm{PRB},i}+\underset{j=1}{\overset{Q}{\mathrm{\Σ}}}{N}_{\mathrm{PRB},j};$

Formula six: $N_{\mathrm{PRB},\max ,\mathrm{UE}}=\underset{i=1}{\overset{P}{\mathrm{\Σ}}}\mathrm{\β}\·N_{\mathrm{PRB},i}+\underset{j=1}{\overset{Q}{\mathrm{\Σ}}}{N}_{\mathrm{PRB},j}+\mathrm{\ΔL};$

Wherein, N _{pRB, K}it is the PRB number of K service needed distribution of the current sub-frame resources distribution of the corresponding participation of this terminal; M is total number of the business of the current sub-frame resources distribution of the corresponding participation of this terminal; N _{pRB, i}be the PRB number that i service needed that type of service that the current sub-frame resources of the corresponding participation of this terminal is distributed is GBR distributed, P is total number of the type of service of the current sub-frame resources distribution of the corresponding participation of this terminal business that is GBR; N _{pRB, j}be the PRB number that j service needed that type of service that the current sub-frame resources of the corresponding participation of this terminal is distributed is NGBR distributed, Q is total number of the type of service of the current sub-frame resources distribution of the corresponding participation of this terminal business that is NGBR; Δ L is resource margin factor, and what represent to determine is the PRB number higher limit of a upper terminal distribution PRB of this terminal, and reality is the difference between the PRB number of a upper terminal distribution.

When adopting above-mentioned formula one to determine that resource is adjusted factor-beta, can consider to adopt formula three or formula four to determine resource adjustment factor-beta, adopt above-mentioned formula two to determine when resource is adjusted factor-beta, can consider to adopt formula five or formula six to determine resource adjustment factor-beta.

Preferably, after being terminal distribution transfer resource, can, according to the resource allocation result to this terminal, upgrade above-mentioned resource margin factor.Concrete, can upgrade described resource margin factor according to following formula seven:

Formula seven: Δ _l=h (N _{pRB, max, UE}, N _{pRB, UE}, Δ _l)=Δ _l+ (N _{pRB, max, UE}-N _{pRB, UE});

Wherein, N _{pRB, UE}number for the PRB of this terminal actual allocated.

In the present invention, when business is downlink business, Physical Shared Channel can be Physical Downlink Shared Channel (PDSCH); When business is uplink service, Physical Shared Channel can be Physical Uplink Shared Channel (PUSCH).

With specific embodiment, the present invention is specifically described below:

LTE system shared channel resources distribution method in the embodiment of the present invention, its basic principle is as follows:

1) the priority calculating principle based on certain is determined the RB/RBG queue of current this subframe of participation time domain scheduling;

2), for each RB/RBG in RB/RBG queue, according to RB/RBG flow-control mechanism, determine the data volume that this RB/RBG need to transmit when the guaranteed qos.RB/RBG Flow Control can realize by PBR Token Bucket Policing: for the RB/RBG of GBR (assurance bit rate), conventionally hypothesis PBR=GBR=MBR, therefore can think that the token number of RB/RBG Flow Control output is the actual data to be transmitted amount of this RB/RBG; For the RB/RBG of NGBR, generally, the token number of RB/RBG Flow Control output is less than the actual data to be transmitted amount of this RB/RBG;

3) for each RB/RBG in RB/RBG queue, the average CQI value of UE corresponding to the data volume that need to transmit according to this RB/RBG and this RB/RBG in whole system bandwidth determines when guaranteed qos need to be the PRB number that this RB/RBG distributes, and determine according to the PRB number demand estimation results of each RB/RBG whether this RB/RBG can participate in the resource allocation process of this subframe, determine the resource adjustment factor that resource is distributed simultaneously, in conjunction with 2) in Flow Control treatment mechanism, resource is adjusted the factor can be for all RB/RBG, also can be only for the RB/RBG of NGBR, in order better to guarantee the QoS of each RB/RBG, the span that can adjust the factor to resource is limited, as be more than or equal to 1,

4) complexity of distributing in order to reduce resource, improve the success rate that resource is distributed simultaneously, at each TTI, carrying out resource divides timing to be thought of as each UE to carry out first resource distribution, the RB/RBG that each UE considers in this resource distributed is determined by the QoS of each RB/RBG, therefore before resource distribution, need to obtain participating according to the RB/RBG priority query that participates in the distribution of this sub-frame resources the UE priority query that resource is distributed, the highest RB/RBG of RB/RBG medium priority that the priority of UE participates in resource distribution by this UE determines;

5) before being each UE Resources allocation, first according to this UE participate in the required PRB number of each RB/RBG that this sub-frame resources distributes, each RB/RBG QoS attribute (as, GBR/NGBR), resource adjusts the factor and resource allocation conditions is before determined the PRB number upper limit of distributing to this UE;

6) according to the actual data to be transmitted amount of UE and the PRB number upper limit that participates in data volume that each RB/RBG that resource distributes need to transmit, distributes for UE, and definite PRB number and the position of distributing to UE of the CQI value of UE on each PRB;

7) for a UE, because its average CQI in whole system bandwidth and the CQI on each PRB there are differences, therefore for the PRB number of this UE actual allocated with according to resource, adjust the predetermined PRB number of the factor upper limit and certainly exist difference, in order to utilize more efficiently resource, after often completing the resource of a UE distributed, need to be according to resource allocation result new resources margin factor more.

Embodiment mono-:

The specific implementation flow process that the present embodiment explanation DSCH Downlink Shared Channel resource is distributed, specific as follows:

Suppose: under LTE system configuration, the shared PRB number of PDSCH is N _pRB ^pDSCH.According to 1) the RB queue of the current participation descending scheduling determined as shown in Figure 2 A, current have 6 RB to participate in the scheduling of this subframe time domain, these 6 RB belong to respectively 3 different UE.RB _{i, j}j the RB that represents i UE.Suppose can determine that participate in that this subframe downlink resource distributes is front 5 RB of domain scheduling while participating in when computational resource is adjusted the factor simultaneously.

Step S01: for each RB participating in the RB queue of descending scheduling, determine according to RB flow-control mechanism the data volume that this RB need to transmit when the guaranteed qos;

Step S02: for each RB in the RB queue of participation descending scheduling, broadband average channel quality information according to RB through determining amount of data after Flow Control output and this RB institute corresponding UE, estimation need to be the PRB number of this RB distribution when guaranteed qos, and statistics participates in the RB of all GBR of downlink resource distribution and the PRB number demand summation of the RB of all NGBR respectively, is designated as respectively N _pRB ^gBRand N _pRB ^nGBR;

Step S03: can determine downlink resource adjustment factor-beta by PDSCH resource situation according to the PRB number demand estimation results of each RB in step S02 and system _dLor β ' _dL, downlink resource is adjusted the calculating of the factor can be for the RB of all these descending schedulings of participation, also can be only for the RB of NGBR.

If downlink resource adjust the factor for be all RB that participate in this scheduling, to adjust factor computational methods as follows for downlink resource:

$\left\{\begin{array}{c}{\mathrm{\β}}_{\mathrm{DL}}=f(N_{\mathrm{PRB}}^{\mathrm{GBR}},N_{\mathrm{PRB}}^{\mathrm{NRBG}},N_{\mathrm{PRB}}^{\mathrm{PDSCH}})=N_{\mathrm{PRB}}^{\mathrm{PDSCH}}/(N_{\mathrm{PRB}}^{\mathrm{GBR}}+N_{\mathrm{PRB}}^{\mathrm{NRBG}})\\ {\mathrm{\β}}_{\mathrm{DL}}\≥1\end{array}\right.---(1-1)$

If downlink resource is adjusted the factor only for the RB of NGBR, downlink resource adjustment factor computational methods are as follows:

$\left\{\begin{array}{c}{\mathrm{\β}}_{\mathrm{DL}}^{\′}=g(N_{\mathrm{PRB}}^{\mathrm{GBR}},N_{\mathrm{PRB}}^{\mathrm{NRBG}},N_{\mathrm{PRB}}^{\mathrm{PDSCH}})=(N_{\mathrm{PRB}}^{\mathrm{PDSCH}}-N_{\mathrm{PRB}}^{\mathrm{GBR}})/N_{\mathrm{PRB}}^{\mathrm{NRBG}}\\ {\mathrm{\β}}_{\mathrm{DL}}^{\′}\≥1\end{array}\right.---(1-2)$

The downlink resource of initialization simultaneously margin factor Δ _dL=Δ _gL(0)=0;

When definite resource is adjusted the factor, also just determined and can participate in the RB set that this sub-frame resources is distributed, according to hypothesis above, determine that front 5 RB of this subframe can participate in resource allocation process.

Step S04: the RB priority query distributing according to definite this subframe of the participation downlink resource of step S03 obtains participating in the UE priority query that this sub-frame resources is distributed, the highest RB of RB medium priority that the priority of UE is distributed by this downlink resource of participation corresponding to this UE determines.According to definite UE priority query of the RB priority query shown in Fig. 2 A as shown in Figure 2 B.

In Fig. 2 B, although RB (1,3) also belongs to UE1, owing to determining RB (1 in step S03,3) can not participate in this subframe resource allocation process, so the final multiplexing result of UE1 is only considered RB (1,1) and RB (1,2), do not comprise RB (1,3).

Step S05: according to definite UE priority orders, be followed successively by each UE Resources allocation.Take UE1 as example, suppose to participate in for UE1 2 RB that resource is distributed, wherein RB (1,1) is the RB of GBR, according to step S03 to estimate the PRB number that this RB need to distribute be N _{pRB, 1}; RBG (1,2) is the RB of NGBR, according to step S03 to estimate the PRB number that this RB need to distribute be N _{pRB, 2}, according to the downlink resource of formula (1-1) or formula (1-2) calculating, adjust the factor, determine on the PRB number of distributing to this UE and be limited to:

$N_{\mathrm{PRB},\max ,{\mathrm{UE}}_i}={\mathrm{\β}}_{\mathrm{DL}}\·N_{\mathrm{PRB},1}+{\mathrm{\β}}_{\mathrm{DL}}\·N_{\mathrm{PRB},2}+{\mathrm{\Δ}}_{\mathrm{DL}}$

$N_{\mathrm{PRB},\max ,{\mathrm{UE}}_i}=N_{\mathrm{PRB},1}+{\mathrm{\β}}_{\mathrm{DL}}^{\′}\·N_{\mathrm{PRB},2}+{\mathrm{\Δ}}_{\mathrm{DL}}$

Step S06: according to the actual data volume waiting for transmission of UE1, the PRB number upper limit for this UE distribution of determining in step S05, and the CQI of UE1 on each PRB, for UE1 distributes continuous PRB resource;

Step S07: after completing the resource of UE1 is distributed, according to the resource allocation result of UE1 new resources margin factor Δ more _dL, suppose that the PRB number of finally distributing to UE1 is

Δ _dLbe updated to:

${\mathrm{\Δ}}_{\mathrm{DL}}={\mathrm{\Δ}}_{\mathrm{DL}}\left(1\right)=h(N_{\mathrm{PRB},\max ,{\mathrm{UE}}_i},N_{\mathrm{PRB},{\mathrm{UE}}_i},{\mathrm{\Δ}}_{\mathrm{DL}}\left(0\right))={\mathrm{\Δ}}_{\mathrm{DL}}\left(0\right)+(N_{\mathrm{PRB},\max ,{\mathrm{UE}}_i}-N_{\mathrm{PRB},{\mathrm{UE}}_i})$

After the resource that completes UE1 is distributed, then the Δ based on after upgrading _dLfor UE2 Resources allocation, repeating step S04～S07 like this, until complete the resource distribution of all UE or distribute all available resources.

Embodiment bis-:

In the present embodiment, the specific implementation flow process that uplink shared channel resources distributes is described, specific as follows:

Suppose: under LTE system configuration, the shared PRB number of PUSCH is N _pRB ^pUSCH.According to 1) the RBG queue of the current participation uplink scheduling determined as shown in Figure 2 C, current have 5 RBG to participate in domain scheduling when up, these 5 RBG belong to respectively 3 different UE.RBG _{i, j}j the RBG that represents i UE.Suppose that these 5 RBG all can participate in the resource allocation process of this subframe simultaneously.

Step S11: for each RBG participating in the RBG queue of uplink scheduling, determine according to RBG flow-control mechanism the data volume that this RBG need to transmit when the guaranteed qos;

Step S12: for each RBG in the RBG queue of participation uplink scheduling, broadband average channel quality information according to RBG through determining amount of data after Flow Control output and this RBG institute corresponding UE, estimation need to be the PRB number of this RBG distribution when guaranteed qos, and statistics participates in the RBG of all GBR of resource distribution and the PRB number demand summation of the RBG of all NGBR respectively, is designated as respectively N _pRB ^gBRand N _pRB ^nGBR;

Step S13: can determine ascending resource adjustment factor-beta by PUSCH resource situation according to the PRB number demand estimation results of each RBG in step S12 and system _uLor β ' _uL, ascending resource is adjusted the calculating of the factor can be for the RBG of all these uplink schedulings of participation, also can be only for the RBG of NGBR.

If ascending resource adjust the factor for be all RBG that participate in this scheduling, ascending resource is adjusted the computational methods of the factor and is:

$\left\{\begin{array}{c}{\mathrm{\β}}_{\mathrm{UL}}=f^{\′}(N_{\mathrm{PRB}}^{\mathrm{GBR}},N_{\mathrm{PRB}}^{\mathrm{NRBG}},N_{\mathrm{PRB}}^{\mathrm{PUSCH}})=N_{\mathrm{PRB}}^{\mathrm{PUSCH}}/(N_{\mathrm{PRB}}^{\mathrm{GBR}},+N_{\mathrm{PRB}}^{\mathrm{NRBG}})\\ {\mathrm{\β}}_{\mathrm{UL}}\≥1\end{array}\right.---(2-1)$

If ascending resource is adjusted the factor only for the RBG of NGBR, the computational methods of the ascending resource adjustment factor are:

$\left\{\begin{array}{c}{\mathrm{\β}}_{\mathrm{UL}}^{\′}=g^{\′}(N_{\mathrm{PRB}}^{\mathrm{GBR}},N_{\mathrm{PRB}}^{\mathrm{NRBG}},N_{\mathrm{PRB}}^{\mathrm{PUSCH}})=(N_{\mathrm{PRB}}^{\mathrm{PUSCH}}-N_{\mathrm{PRB}}^{\mathrm{GBR}})/N_{\mathrm{PRB}}^{\mathrm{NRBG}}\\ {\mathrm{\β}}_{\mathrm{UL}}^{\′}\≥1\end{array}\right.---(2-2)$

The resource of initialization simultaneously margin factor Δ _uL=Δ _uL(0)=0;

When definite resource is adjusted the factor, also just determined that this subframe can participate in the RBG set that resource is distributed, and according to hypothesis above, determines that all 5 RBG of this subframe can participate in this subframe resource allocation process.

Step S14: obtain participating in the UE priority query of uplink scheduling according to the RBG priority query that participates in uplink scheduling, the highest RBG of RBG medium priority that the priority of UE is distributed by this resource of participation corresponding to this UE determines.According to definite UE priority query of the RBG priority query shown in Fig. 2 C as shown in Figure 2 D;

Step S15: according to definite UE priority orders, be followed successively by each UE Resources allocation.Take UE1 as example, suppose to participate in for UE1 2 RBG that resource is distributed, wherein RBG (1,1) is the RBG of GBR, according to step S13 to estimate the PRB number that this RBG need to distribute be N _{pRB, 1}; RBG (1,2) is the RBG of NGBR, according to step S13 to estimate the PRB number that this RBG need to distribute be N _{pRB, 2}, the ascending resource calculating according to formula (2-1) or formula (2-2) is adjusted the factor, distributes on the PRB number of this UE and is limited to:

$N_{\mathrm{PRB},\max ,{\mathrm{UE}}_i}={\mathrm{\β}}_{\mathrm{UL}}\·N_{\mathrm{PRB},1}+{\mathrm{\β}}_{\mathrm{UL}}\·N_{\mathrm{PRB},2}+{\mathrm{\Δ}}_{\mathrm{UL}}$

$N_{\mathrm{PRB},\max ,{\mathrm{UE}}_i}=N_{\mathrm{PRB},1}+{\mathrm{\β}}_{\mathrm{UL}}^{\′}\·N_{\mathrm{PRB},2}+{\mathrm{\Δ}}_{\mathrm{UL}};$

Step S16: according to the actual data volume waiting for transmission of UE1, the PRB number upper limit for this UE distribution of determining in step S15, and the CQI of UE1 on each PRB, for UE1 distributes continuous PRB resource;

Step S17: after completing the resource of UE1 is distributed, according to the resource allocation result of UE1 new resources margin factor Δ more _uL, suppose that the PRB number of finally distributing to UE1 is

Δ _uLbe updated to:

${\mathrm{\Δ}}_{\mathrm{UL}}={\mathrm{\Δ}}_{\mathrm{UL}}\left(1\right)=h^{\′}(N_{\mathrm{PRB},\max ,{\mathrm{UE}}_i},N_{\mathrm{PRB},{\mathrm{UE}}_i},{\mathrm{\Δ}}_{\mathrm{UL}}\left(0\right))={\mathrm{\Δ}}_{\mathrm{UL}}\left(0\right)+(N_{\mathrm{PRB},\max ,{\mathrm{UE}}_i}-N_{\mathrm{PRB},{\mathrm{UE}}_i})$

After the resource that completes UE1 is distributed, then the Δ based on after upgrading _uLfor UE2 Resources allocation, repeating step S14～S17 like this, until complete the resource distribution of all UE or distribute all available resources.

Referring to Fig. 3, the embodiment of the present invention also provides a kind of base station, and this base station comprises:

Business determining unit 30, while participating in current subframe for determining, the business of domain scheduling participates in the business that current sub-frame resources is distributed;

UE priority determining unit 31, be used for the corresponding terminal of each business that participates in current sub-frame resources distribution to be defined as participating in the terminal that current sub-frame resources is distributed, and determine the priority orders of carrying out resource distribution to participating in each terminal of current sub-frame resources distribution according to the priority of described each business;

Resource allocation unit 32, for according to described priority orders, is followed successively by and participates in each terminal distribution transfer resource that current sub-frame resources is distributed.

Described business determining unit 30 comprises:

PRB number determining unit, for determine need to be when participating in current subframe the Physical Resource Block PRB number of each traffic assignments of domain scheduling;

Result determining unit, for being the priority of the PRB number of this each traffic assignments, this each business and the total number of PRB that Physical Shared Channel takies as required, determines the business that participates in current sub-frame resources distribution in this each business.

Described PRB number determining unit is used for:

Each business of domain scheduling during for the current subframe of participation, according to the satisfied service quality QoS of this service needed, determine the data volume of this service needed transmission, according to this data volume and the average channel quality indication CQI value of terminal corresponding to this business on system full bandwidth definite need to be the PRB number of this traffic assignments.

This base station also comprises:

Adjust factor determining unit 33, for determining the resource adjustment factor, it is to be more than or equal to 1 integer that this resource is adjusted factor;

Upper limit determining unit 34, for the PRB number of each traffic assignments of adjusting the factor according to described resource and need to distributing for the current sub-frame resources of the corresponding participation of terminal, is defined as the PRB number higher limit of this terminal distribution PRB;

Described resource allocation unit 32 for:

CQI value on the data volume of each service needed transmission distributing according to described PRB number higher limit, the current sub-frame resources of participation corresponding to this terminal and each PRB that this terminal takies at Physical Shared Channel, determine number and the position of the PRB that distributes to this terminal, according to definite result, be this terminal distribution PRB, described number is less than or equal to described PRB number higher limit.

Described adjustment factor determining unit 33 for:

According to following formula one or formula two, determine described resource adjustment factor-beta:

Formula one: $\left\{\begin{array}{c}\mathrm{\β}=f(N_{\mathrm{PRB}}^{\mathrm{GBR}},N_{\mathrm{PRB}}^{\mathrm{NRBG}},N_{\mathrm{PRB}}^{\mathrm{PSCH}})=N_{\mathrm{PRB}}^{\mathrm{PSCH}}/(N_{\mathrm{PRB}}^{\mathrm{GBR}}+N_{\mathrm{PRB}}^{\mathrm{NRBG}})\\ \mathrm{\β}\≥1\end{array}\right.;$

Formula two: $\left\{\begin{array}{c}\mathrm{\β}=g(N_{\mathrm{PRB}}^{\mathrm{GBR}},N_{\mathrm{PRB}}^{\mathrm{NRBG}},N_{\mathrm{PRB}}^{\mathrm{PSCH}})=(N_{\mathrm{PRB}}^{\mathrm{PSCH}}-N_{\mathrm{PRB}}^{\mathrm{GBR}})/N_{\mathrm{PRB}}^{\mathrm{NRBG}}\\ \mathrm{\β}\≥1\end{array}\right.;$

Wherein, N _pRB ^gBRneed to be for participating in total number current sub-frame resources distribution, that type of service is each traffic assignments PRB of assurance bit rate GBR; N _pRB ^nGBRbeing need to be that current sub-frame resources be distributed for participating in, type of service is total number of each traffic assignments PRB of non-assurance bit rate NGBR; N _pRB ^pSCHthe total number of PRB taking for described Physical Shared Channel.

Described upper limit determining unit 34 for:

When adopting above-mentioned formula one to determine that described resource is adjusted factor-beta, according to following formula three or formula four, be defined as the PRB number higher limit N of this terminal distribution PRB _{pRB, max, UE}:

Formula three: $N_{\mathrm{PRB},\max ,\mathrm{UE}}=\underset{k=1}{\overset{M}{\mathrm{\Σ}}}\mathrm{\β}\·N_{\mathrm{PRB},K};$

Formula four: $N_{\mathrm{PRB},\max ,\mathrm{UE}}=\underset{k=1}{\overset{M}{\mathrm{\Σ}}}\mathrm{\β}\·N_{\mathrm{PRB},K}+\mathrm{\ΔL}$

When adopting above-mentioned formula two to determine that described resource is adjusted factor-beta, according to following formula five or formula six, be defined as the PRB number higher limit of this terminal distribution PRB:

Formula five: $N_{\mathrm{PRB},\max ,\mathrm{UE}}=\underset{i=1}{\overset{P}{\mathrm{\Σ}}}\mathrm{\β}\·N_{\mathrm{PRB},i}+\underset{j=1}{\overset{Q}{\mathrm{\Σ}}}{N}_{\mathrm{PRB},j};$

Formula six: $N_{\mathrm{PRB},\max ,\mathrm{UE}}=\underset{i=1}{\overset{P}{\mathrm{\Σ}}}\mathrm{\β}\·N_{\mathrm{PRB},i}+\underset{j=1}{\overset{Q}{\mathrm{\Σ}}}{N}_{\mathrm{PRB},j}+\mathrm{\ΔL};$

Wherein, N _{pRB, K}it is the PRB number of K service needed distribution of the current sub-frame resources distribution of the corresponding participation of this terminal; M is total number of the business of the current sub-frame resources distribution of the corresponding participation of this terminal; N _{pRB, i}be the PRB number that i service needed that type of service that the current sub-frame resources of the corresponding participation of this terminal is distributed is GBR distributed, P is total number of the type of service of the current sub-frame resources distribution of the corresponding participation of this terminal business that is GBR; N _{pRB, j}be the PRB number that j service needed that type of service that the current sub-frame resources of the corresponding participation of this terminal is distributed is NGBR distributed, Q is total number of the type of service of the current sub-frame resources distribution of the corresponding participation of this terminal business that is NGBR; Δ L is resource margin factor, and what represent to determine is the PRB number higher limit of a upper terminal distribution PRB of this terminal, and reality is the difference between the PRB number of a upper terminal distribution.

This base station also comprises:

Margin factor updating block 35, for after being terminal distribution PRB, according to the resource allocation result to this terminal, upgrades described resource margin factor.

Described margin factor updating block is used for:

According to following formula seven, upgrade described resource margin factor:

Formula seven: Δ _l=h (N _{pRB, max, UE}, N _{pRB, UE}, Δ _l)=Δ _l+ (N _{pRB, max, UE}-N _{pRB, UE});

Wherein, N _{pRB, UE}number for the PRB of this terminal actual allocated.

To sum up, beneficial effect of the present invention comprises:

In the scheme that the embodiment of the present invention provides, while determining the current subframe of participation, in the business of domain scheduling, participate in the business that current sub-frame resources is distributed, according to the priority that participates in each business of current sub-frame resources distribution, determine the priority orders that terminal corresponding to this each business carried out to resource distribution, then according to this priority orders, be each terminal difference Resources allocation, visible, with in prior art, according to the priority orders of business, be followed successively by each traffic assignments resource, and a resource minute partition two-wheeled carries out, when the corresponding a plurality of business of a UE, need to repeatedly for carrying out resource distribution, this UE compare, in the present invention, for terminal, carry out resource distribution, and only carry out first resource distribution for a terminal, the complexity that resource is distributed has obtained effectively reducing.

Meanwhile, the present invention once completes the resource of all RB/RBG of UE is distributed guaranteeing that user QoS takes into account in the prerequisite of fairness between user simultaneously, can greatly reduce the complexity of realization.In addition, descendingly divide the resource that UE is distributed in timing requirement must be in a subset of resources using type1 resource to distribute type UE to be carried out to resource, in use type2 resource, distribute type carry out the distribution of DSCH Downlink Shared Channel resource and carrying out a uplink shared channel resources distribution minute timing, the continuous resource of UE is distributed in requirement, the limiting factor of distributing for above these resources, use the method can improve the success rate that resource is distributed, thereby raising resource utilization ratio, the while is more conducive to guarantee user's QoS and entire system performance.

Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (13)

1. a resource allocation methods, is characterized in that, the method comprises:

While determining the current subframe of participation, in the business of domain scheduling, participate in the business that current sub-frame resources is distributed;

The corresponding terminal of each business that participates in current sub-frame resources distribution is defined as participating in the terminal that current sub-frame resources is distributed, and determines the priority orders of carrying out resource distribution to participating in each terminal of current sub-frame resources distribution according to the priority of described each business;

According to described priority orders, be followed successively by and participate in each terminal distribution transfer resource that current sub-frame resources is distributed;

Wherein, before the terminal distribution transfer resource distributing for the current sub-frame resources of participation, further comprise:

According to following formula one or formula two, determine resource adjustment factor-beta, it is to be more than or equal to 1 integer that this resource is adjusted factor; Formula one: $\left\{\begin{array}{c}\mathrm{\β}=f(N_{\mathrm{PRB}}^{\mathrm{GBR}},N_{\mathrm{PRB}}^{\mathrm{NGBR}},N_{\mathrm{PRB}}^{\mathrm{PSCH}})=N_{\mathrm{PRB}}^{\mathrm{PSCH}}/(N_{\mathrm{PRB}}^{\mathrm{GBR}}+N_{\mathrm{PRB}}^{\mathrm{NGBR}})\\ \mathrm{\β}\≥1\end{array}\right.;$ Formula two: $\left\{\begin{array}{c}\mathrm{\β}=g(N_{\mathrm{PRB}}^{\mathrm{GBR}},N_{\mathrm{PRB}}^{\mathrm{NGBR}},N_{\mathrm{PRB}}^{\mathrm{PSCH}})=(N_{\mathrm{PRB}}^{\mathrm{PSCH}}-N_{\mathrm{PRB}}^{\mathrm{GBR}})/N_{\mathrm{PRB}}^{\mathrm{NGBR}}\\ \mathrm{\β}\≥1\end{array}\right.;$ Wherein,

need to be for participating in total number current sub-frame resources distribution, that type of service is each traffic assignments Physical Resource Block PRB of assurance bit rate GBR;

being need to be that current sub-frame resources be distributed for participating in, type of service is total number of each traffic assignments PRB of non-assurance bit rate NGBR;

the total number of PRB taking for Physical Shared Channel;

According to described resource, adjust the factor and the PRB number of each traffic assignments that need to distribute for the current sub-frame resources of the corresponding participation of this terminal, be defined as the PRB number higher limit of this terminal distribution PRB;

For this terminal distribution transfer resource comprises:

Channel quality indicator (CQI) value on the data volume of each service needed transmission distributing according to described PRB number higher limit, the current sub-frame resources of participation corresponding to this terminal and each PRB that this terminal takies at Physical Shared Channel, determine number and the position of the PRB that distributes to this terminal, according to definite result, be this terminal distribution PRB, described number is less than or equal to described PRB number higher limit.

2. the method for claim 1, is characterized in that, the business that participates in current sub-frame resources distribution during the current subframe of described definite participation in the business of domain scheduling comprises:

Determine need to be when participating in current subframe the Physical Resource Block PRB number of each traffic assignments of domain scheduling;

Be the priority of the PRB number of this each traffic assignments, this each business and the total number of PRB that Physical Shared Channel takies as required, determine the business that participates in current sub-frame resources distribution in this each business.

3. method as claimed in claim 2, is characterized in that, describedly determines and need to the PRB number of each traffic assignments of domain scheduling comprise when participating in current subframe:

Each business of domain scheduling during for the current subframe of participation, according to the satisfied service quality QoS of this service needed, determine the data volume of this service needed transmission, and the average channel quality indication CQI value on system full bandwidth determines need to be the PRB number of this traffic assignments according to this data volume and the corresponding terminal of this business.

4. the method for claim 1, is characterized in that, when adopting above-mentioned formula one to determine that described resource is adjusted factor-beta, is defined as the PRB number higher limit N of this terminal distribution PRB according to following formula three or formula four _{pRB, max, UE}:

Formula three: $N_{\mathrm{PRB},\max ,\mathrm{UE}}=\underset{k=1}{\overset{M}{\mathrm{\Σ}}}\mathrm{\β}\·N_{\mathrm{PRB},K};$

Formula four: $N_{\mathrm{PRB},\max ,\mathrm{UE}}=\underset{k=1}{\overset{M}{\mathrm{\Σ}}}\mathrm{\β}\·N_{\mathrm{PRB},K}+\mathrm{\ΔL}$

When adopting above-mentioned formula two to determine that described resource is adjusted factor-beta, according to following formula five or formula six, be defined as the PRB number higher limit of this terminal distribution PRB:

Formula five: $N_{\mathrm{PRB},\max ,\mathrm{UE}}=\underset{i=1}{\overset{P}{\mathrm{\Σ}}}\mathrm{\β}\·N_{\mathrm{PRB},i}+\underset{j=1}{\overset{Q}{\mathrm{\Σ}}}{N}_{\mathrm{PRB},j};$

Formula six: $N_{\mathrm{PRB},\max ,\mathrm{UE}}=\underset{i=1}{\overset{P}{\mathrm{\Σ}}}\mathrm{\β}\·N_{\mathrm{PRB},i}+\underset{j=1}{\overset{Q}{\mathrm{\Σ}}}{N}_{\mathrm{PRB},j}+\mathrm{\ΔL};$

Wherein, N _{pRB, K}it is the PRB number of K service needed distribution of the current sub-frame resources distribution of the corresponding participation of this terminal; M is total number of the business of the current sub-frame resources distribution of the corresponding participation of this terminal; N _{pRB, i}be the PRB number that i service needed that type of service that the current sub-frame resources of the corresponding participation of this terminal is distributed is GBR distributed, P is total number of the type of service of the current sub-frame resources distribution of the corresponding participation of this terminal business that is GBR; N _{pRB, j}be the PRB number that j service needed that type of service that the current sub-frame resources of the corresponding participation of this terminal is distributed is NGBR distributed, Q is total number of the type of service of the current sub-frame resources distribution of the corresponding participation of this terminal business that is NGBR; Δ L is resource margin factor, and what represent to determine is the PRB number higher limit of a upper terminal distribution PRB of this terminal, and reality is the difference between the PRB number of a upper terminal distribution.

5. method as claimed in claim 4, is characterized in that, after being this terminal distribution transfer resource, the method further comprises:

According to the resource allocation result to this terminal, upgrade described resource margin factor.

6. method as claimed in claim 5, is characterized in that, according to following formula seven, upgrades described resource margin factor:

Formula seven: Δ _l=h (N _{pRB, max, UE}, N _{pRB, UE}, Δ _l)=Δ _l+ (N _{pRB, max, UE}-N _{pRB, UE});

Wherein, N _{pRB, UE}number for the PRB of this terminal actual allocated.

7. as the method as described in arbitrary in claim 1-6, it is characterized in that, when described business is downlink business, described Physical Shared Channel is Physical Downlink Shared Channel PDSCH;

When described business is uplink service, described Physical Shared Channel is Physical Uplink Shared Channel PUSCH.

8. a base station, is characterized in that, this base station comprises:

Business determining unit, while participating in current subframe for determining, the business of domain scheduling participates in the business that current sub-frame resources is distributed;

UE priority determining unit, be used for the corresponding terminal of each business that participates in current sub-frame resources distribution to be defined as participating in the terminal that current sub-frame resources is distributed, and determine the priority orders of carrying out resource distribution to participating in each terminal of current sub-frame resources distribution according to the priority of described each business;

Resource allocation unit, for according to described priority orders, is followed successively by and participates in each terminal distribution transfer resource that current sub-frame resources is distributed;

Wherein, before the terminal distribution transfer resource distributing for the current sub-frame resources of participation, further comprise:

Adjust factor determining unit, for determining resource adjustment factor-beta according to following formula one or formula two, it is to be more than or equal to 1 integer that this resource is adjusted factor; Formula one: $\left\{\begin{array}{c}\mathrm{\β}=f(N_{\mathrm{PRB}}^{\mathrm{GBR}},N_{\mathrm{PRB}}^{\mathrm{NGBR}},N_{\mathrm{PRB}}^{\mathrm{PSCH}})=N_{\mathrm{PRB}}^{\mathrm{PSCH}}/(N_{\mathrm{PRB}}^{\mathrm{GBR}}+N_{\mathrm{PRB}}^{\mathrm{NGBR}})\\ \mathrm{\β}\≥1\end{array}\right.;$ Formula two: $\left\{\begin{array}{c}\mathrm{\β}=g(N_{\mathrm{PRB}}^{\mathrm{GBR}},N_{\mathrm{PRB}}^{\mathrm{NGBR}},N_{\mathrm{PRB}}^{\mathrm{PSCH}})=(N_{\mathrm{PRB}}^{\mathrm{PSCH}}-N_{\mathrm{PRB}}^{\mathrm{GBR}})/N_{\mathrm{PRB}}^{\mathrm{NGBR}}\\ \mathrm{\β}\≥1\end{array}\right.;$ Wherein,

need to be for participating in total number of each business distribution Physical Resource Block PRB current sub-frame resources distribution, that type of service is assurance bit rate GBR;

being need to be that current sub-frame resources be distributed for participating in, type of service is total number of each traffic assignments PRB of non-assurance bit rate NGBR; the total number of PRB taking for Physical Shared Channel;

Upper limit determining unit, for the PRB number of each traffic assignments of adjusting the factor according to described resource and need to distributing for the current sub-frame resources of the corresponding participation of terminal, is defined as the PRB number higher limit of this terminal distribution PRB;

Described resource allocation unit is used for:

Channel quality indicator (CQI) value on the data volume of each service needed transmission distributing according to described PRB number higher limit, the current sub-frame resources of participation corresponding to this terminal and each PRB that this terminal takies at Physical Shared Channel, determine number and the position of the PRB that distributes to this terminal, according to definite result, be this terminal distribution PRB, described number is less than or equal to described PRB number higher limit.

9. base station as claimed in claim 8, is characterized in that, described business determining unit comprises:

PRB number determining unit, for determine need to be when participating in current subframe the Physical Resource Block PRB number of each traffic assignments of domain scheduling;

Result determining unit, for being the priority of the PRB number of this each traffic assignments, this each business and the total number of PRB that Physical Shared Channel takies as required, determines the business that participates in current sub-frame resources distribution in this each business.

10. base station as claimed in claim 9, is characterized in that, described PRB number determining unit is used for:

Each business of domain scheduling during for the current subframe of participation, according to the satisfied service quality QoS of this service needed, determine the data volume of this service needed transmission, according to this data volume and the average channel quality indication CQI value of terminal corresponding to this business on system full bandwidth definite need to be the PRB number of this traffic assignments.

11. base stations as claimed in claim 8, is characterized in that, described upper limit determining unit is used for:

When adopting above-mentioned formula one to determine that described resource is adjusted factor-beta, according to following formula three or formula four, be defined as the PRB number higher limit N of this terminal distribution PRB _{pRB, max, UE}:

Formula three: $N_{\mathrm{PRB},\max ,\mathrm{UE}}=\underset{k=1}{\overset{M}{\mathrm{\Σ}}}\mathrm{\β}\·N_{\mathrm{PRB},K};$

Formula four: $N_{\mathrm{PRB},\max ,\mathrm{UE}}=\underset{k=1}{\overset{M}{\mathrm{\Σ}}}\mathrm{\β}\·N_{\mathrm{PRB},K}+\mathrm{\ΔL}$

When adopting above-mentioned formula two to determine that described resource is adjusted factor-beta, according to following formula five or formula six, be defined as the PRB number higher limit of this terminal distribution PRB:

Formula five: $N_{\mathrm{PRB},\max ,\mathrm{UE}}=\underset{i=1}{\overset{P}{\mathrm{\Σ}}}\mathrm{\β}\·N_{\mathrm{PRB},i}+\underset{j=1}{\overset{Q}{\mathrm{\Σ}}}{N}_{\mathrm{PRB},j};$

Formula six: $N_{\mathrm{PRB},\max ,\mathrm{UE}}=\underset{i=1}{\overset{P}{\mathrm{\Σ}}}\mathrm{\β}\·N_{\mathrm{PRB},i}+\underset{j=1}{\overset{Q}{\mathrm{\Σ}}}{N}_{\mathrm{PRB},j}+\mathrm{\ΔL};$

Wherein, N _{pRB, K}it is the PRB number of K service needed distribution of the current sub-frame resources distribution of the corresponding participation of this terminal; M is total number of the business of the current sub-frame resources distribution of the corresponding participation of this terminal; N _{pRB, i}be the PRB number that i service needed that type of service that the current sub-frame resources of the corresponding participation of this terminal is distributed is GBR distributed, P is total number of the type of service of the current sub-frame resources distribution of the corresponding participation of this terminal business that is GBR; N _{pRB, j}be the PRB number that j service needed that type of service that the current sub-frame resources of the corresponding participation of this terminal is distributed is NGBR distributed, Q is total number of the type of service of the current sub-frame resources distribution of the corresponding participation of this terminal business that is NGBR; Δ L is resource margin factor, and what represent to determine is the PRB number higher limit of a upper terminal distribution PRB of this terminal, and reality is the difference between the PRB number of a upper terminal distribution.

12. base stations as claimed in claim 11, is characterized in that, this base station also comprises:

Margin factor updating block, for after being terminal distribution PRB, according to the resource allocation result to this terminal, upgrades described resource margin factor.

13. base stations as claimed in claim 12, is characterized in that, described margin factor updating block is used for:

According to following formula seven, upgrade described resource margin factor:

Formula seven: Δ _l=h (N _{pRB, max, UE}, N _{pRB, UE}, Δ _l)=Δ _l+ (N _{pRB, max, UE}-N _{pRB, UE});

Wherein, N _{pRB, UE}number for the PRB of this terminal actual allocated.

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