CN102469463A - Method, device, system and equipment for allocating marginal frequency resource - Google Patents

Method, device, system and equipment for allocating marginal frequency resource Download PDF

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CN102469463A
CN102469463A CN2010105317556A CN201010531755A CN102469463A CN 102469463 A CN102469463 A CN 102469463A CN 2010105317556 A CN2010105317556 A CN 2010105317556A CN 201010531755 A CN201010531755 A CN 201010531755A CN 102469463 A CN102469463 A CN 102469463A
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frequency resource
sub
district
edge
edge customer
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CN102469463B (en
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刘献玲
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference

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Abstract

The invention relates to the communication technique field, in particular to a method, a device, a system and equipment for allocating a marginal frequency resource. The method comprises the following steps that: frequency resource demands of marginal users of each subdistrict are acquired; and the main marginal frequency resource is sequentially allocated to each subdistrict according to the frequency resource demands of the marginal user of each subdistrict and an interference frequency resource between each subdistrict and a neighboring subdistrict. By adopting the method, the device, the system and the equipment for allocating the marginal frequency resource, the limit marginal frequency resource is reasonably allocated according to the frequency resource demand of the marginal user of each subdistrict and the interference situation of the neighboring subdistrict, and the inter-subdistrict interference can be effectively avoided.

Description

A kind of method of marginal frequency resource allocation, device, system and equipment
Technical field
The present invention relates to technical field of communication, relate in particular to a kind of method, device, system and equipment of marginal frequency resource allocation.
Background technology
At present; OFDM (Orthogonal Frequency Division Multiplexing; OFDM) technology has solved the problem of disturbing in the sub-district better than CDMA (Code Division Multiple Access, code division multiple access inserts) technology, therefore is widely used.In 3GPP LTE (Long Time Evolution, Long Term Evolution) standard, confirmed the OFDM technology is added in the 3GPP-EUTRA standard as enhancement techniques.Its basic principle is: in down link; The narrowband subchannels that the running time-frequency resource of wireless communication system is divided into some quadratures in frequency domain; Because the narrow-band characteristic of channel can keep the orthogonality between the subchannel, thereby has guaranteed that the interference between the internal user of sub-district is very little; In up link, different user takies the subcarrier of different marginal frequencies, has avoided the interference between the internal user of sub-district.But the ICI of ofdm system (Inter-Cell Interference disturbs between the sub-district) problem is more serious than cdma system.
Prior art utilizes various interference coordination technique to carry out Interference Control, reduces the interference level between the sub-district, improves the throughput of Cell Edge User.The basic principle of Inter-Cell Interference Coordination is: be called the basic frequency of this sub-district for the frequency that preferentially is used for boundary user of each sub-district specific assigned; All the other frequencies are called secondary frequencies, and the boundary user of neighbor cell uses different basic frequencies to avoid presence of intercell interference.Soft-frequency reuse scheme according to the 3GPPR1-050507 proposition; When the frequency re-use factor of each sub-district is 3, distribute the boundary user of adjacent 3 sub-districts to take each self-orthogonal 1/3 fixing frequency resource is given each sub-district as basic frequency resource priority allocation boundary user.
But,, can't satisfy the demand of carrying higher load, and, can cause the wasting of resources for the little sub-district of loading demand owing to distribute to the basic frequency resource-constrained of cell boundary users.
Summary of the invention
The embodiment of the invention provides a kind of method, device, system and equipment of marginal frequency resource allocation; According to the frequency resource of the edge customer needs of each sub-district with and the disturbed condition of neighbor cell; The marginal frequency resource that reasonable distribution is limited, and avoid the interference of minizone effectively.
The embodiment of the invention provides a kind of method of marginal frequency resource allocation, and this method comprises:
Obtain the frequency resource demand of the edge customer of each sub-district;
According to the frequency resource demand of the edge customer of each sub-district, and the interfering frequency resource between said each sub-district and the neighbor cell, the total edge frequency resource is assigned to said each sub-district successively.
Accordingly, the embodiment of the invention provides a kind of device of marginal frequency resource allocation, comprising:
Acquisition module is used to obtain the frequency resource demand of the edge customer of each sub-district;
Distribution module is used for the frequency resource demand according to the edge customer of each sub-district, and the interfering frequency resource between said each sub-district and the neighbor cell, and the total edge frequency resource is assigned to said each sub-district successively.
Accordingly, the embodiment of the invention provides a kind of equipment, comprising: the device of marginal frequency resource allocation;
The device of marginal frequency resource allocation comprises:
Acquisition module is used to obtain the frequency resource demand of the edge customer of each sub-district;
Distribution module is used for the frequency resource demand according to the edge customer of each sub-district, and the interfering frequency resource between said each sub-district and the neighbor cell, and the total edge frequency resource is assigned to said each sub-district successively.
Accordingly, the embodiment of the invention provides a kind of marginal frequency resource distributor system, a plurality of base stations;
Each said base station is used to obtain the frequency resource demand of the edge customer of each sub-district; According to the frequency resource demand of the edge customer of each sub-district, and the interfering frequency resource between said each sub-district and the neighbor cell, the total edge frequency resource is assigned to said each sub-district successively.
The embodiment of the invention provides a kind of method, device, system and equipment of marginal frequency resource allocation, is used to obtain the frequency resource demand of the edge customer of each sub-district; According to the frequency resource demand of the edge customer of each sub-district, and the interfering frequency resource between said each sub-district and the neighbor cell, the total edge frequency resource is assigned to said each sub-district successively.Method, device, system and the equipment of the marginal frequency resource allocation that the use embodiment of the invention provides; Can according to the frequency resource demand of the edge customer of each sub-district with and the disturbed condition of neighbor cell; The marginal frequency resource that reasonable distribution is limited, and avoid the interference of minizone effectively.
Description of drawings
Fig. 1 is the method flow sketch map of marginal frequency resource allocation in the embodiment of the invention;
Fig. 2 is the medium and small district's distribution in base station sketch map in the embodiment of the invention;
Fig. 3 is a plurality of base station cell distribution schematic diagrams in another embodiment of the present invention;
Fig. 4 is the method flow sketch map of marginal frequency resource allocation in another embodiment of the present invention;
Fig. 5 is a plurality of base station cell distribution schematic diagrams in another embodiment of the present invention;
Fig. 6 is the method flow sketch map of marginal frequency resource allocation in another embodiment of the present invention;
Fig. 7 is the device sketch map of marginal frequency resource allocation in another embodiment of the present invention.
Embodiment
At length set forth to the main realization principle of embodiment of the invention technical scheme, embodiment and to the beneficial effect that should be able to reach below in conjunction with each accompanying drawing.
With the total edge frequency resource allocation when belonging to a plurality of sub-district of same base station; If the marginal frequency resource that each cell allocation is fixing; Then can not adapt to the variation of each cell load; The demand of the sub-district of carrying higher load can't be satisfied, and, the wasting of resources can be caused again for the little sub-district of loading demand.In order to solve the problem that prior art exists, the embodiment of the invention provides a kind of method of marginal frequency resource allocation, and is as shown in Figure 1, and this method may further comprise the steps:
Step 101, obtain the frequency resource demand of the edge customer of each sub-district;
Concrete, when obtaining the marginal frequency resource, can judge the marginal frequency resource that it need distribute according to the service rate of the edge customer of each sub-district.Certainly, also can use other parameters to judge the marginal frequency resource that each sub-district need be distributed, for example traffic carrying capacity, load capacity, transmitting power etc.
Service rate according to the edge customer of each sub-district; When judgement needs the marginal frequency resource of distribution; At first obtain the service rate of the edge customer of each sub-district that belongs to same base station; Obtain then each sub-district edge customer service rate and belong to the proportionate relationship between total service rate of edge customer of all sub-districts of same base station, at last according to the proportionate relationship and the total edge frequency resource of said each sub-district, obtain the frequency resource demand of each Cell Edge User.As shown in Figure 2; For belonging to three sub-district A, B, the C of same base station; The service rate of supposing the edge customer of sub-district A is that the service rate of the edge customer of 500kbps, sub-district B is that the service rate of the edge customer of 250kbps, sub-district C is 250kbps, and then total service rate of the edge customer of all sub-districts is 1000kbps, and wherein the proportionate relationship of sub-district A is 500/1000=1/2; The proportionate relationship of sub-district B is 250/1000=1/4, and the proportionate relationship of sub-district C is 250/1000=1/4; If the total edge frequency resource is 10M, then the frequency resource demand of the edge customer of sub-district A is 5M, and the frequency resource demand of the edge customer of sub-district B is 2.5M, and the frequency resource demand of the edge customer of sub-district C is 2.5M.
Step 102, according to the frequency resource demand of the edge customer of each sub-district, and the interfering frequency resource between each sub-district and the neighbor cell is assigned to each sub-district successively with the total edge frequency resource.
Concrete; The sub-district that the sub-district medium frequency resource requirement of unallocated marginal frequency resource is maximum is as current area; Obtain the frequency resource demand and the frequency resource demand sum of the edge customer of the sub-district of allocations of edge frequency resource of the edge customer of current area, for example, among sub-district A, B, C, the D; Sub-district A and D have distributed the marginal frequency resource; The all unallocated marginal frequency resource of sub-district B and C then compares sub-district B and sub-district C frequency resource demand separately, and the sub-district that the frequency resource demand is bigger is as current area; And the frequency resource demand of the sub-district A of allocations of edge frequency resource and sub-district D edge customer separately summation.
And, obtain the interfering frequency resource between current area and the neighbor cell; Possibly have interference between current area and the neighbor cell, take certain marginal frequency resource, this occupied marginal frequency resource is the interfering frequency resource.Can obtain the interfering frequency resource between current area and the neighbor cell according to the interfere information of adjacent base station transmission, this interfere information includes but not limited to: high interference indication in the up channel and/or the relative arrowband transmitted power in the down channel.When being cell allocation marginal frequency resource, this interfering frequency resource is taken into account, help avoid the interference between the sub-district.
Judge that the total edge frequency resource removes the residue edge frequency resource that obtains after the frequency resource demand sum of the edge customer of the sub-district of allocations of edge frequency resource, the interfering frequency resource; Whether be not less than the frequency resource demand of the edge customer of current area; If residue edge frequency resource is not less than the frequency resource demand of the edge customer of current area; Then, be about to the required marginal frequency resource allocation of current area to this current sub-district according to the frequency resource demand assignment marginal frequency resource of the edge customer of current area; If residue edge frequency resource is less than the frequency resource demand of the edge customer of current area; Then will remain the edge frequency resource and all distribute to current area; And the interfering frequency resource between current area and neighbor cell, obtain the marginal frequency resource that differs between frequency resource demand and the residue edge frequency resource of edge customer of current area.
Through foregoing description, can find out the method for the marginal frequency resource allocation that the use embodiment of the invention provides; Can be according to each sub-district to the edge demands for frequency resources and the allocations of edge frequency resource; Avoided marginal frequency inadequate resource that fixed allocation marginal frequency resource brings or too much problem, simultaneously, when reasonable distribution marginal frequency resource; Take into full account the interference between the neighbor cell, avoided the interference between the sub-district as far as possible.
The method of the marginal frequency resource allocation that the embodiment of the invention is provided through specific embodiment below is elaborated; As shown in Figure 3; Sub-district A0, B0, C0 belong to base station 0, and sub-district A1, B1, C1 belong to base station 1, and the like; Suppose that the total edge frequency resource is 10M, the concrete condition of each sub-district is following:
Sub-district A0 has GBR (the Guaranteed Bit Rate that 3 edge customer UE:UE1 have 64kbps; The assurance bit rate) NGBR professional and 5Mbps is professional; 5Mbps refers to professional AMBR (the Aggregate Maximum Bitrate of NGBR; Converge maximum bit rate), following NGBR service rate is all identical with it; UE2 has the NGBR business of 10Mbps; UE3 has the GBR business of 128kbps and the NGBR business of 10Mbps.
Sub-district B0 has 2 edge customer UE:UE1 and has the GBR business of 1024kbps and the NGBR business of 5Mbps; UE2 has the GBR business of 128kbps and the NGBR business of 10Mbps.
Sub-district C0 has 1 edge customer UE:UE1 and has the GBR business of 512kbps and the NGBR business of 10Mbps.
Based on above-mentioned hypothesis, as shown in Figure 4 when using the method that the embodiment of the invention provides, may further comprise the steps:
Step 401, obtain the service rate of the edge customer of each sub-district that belongs to same base station;
Wherein, the UE1 service rate is 5064kbps among the A0 of sub-district, i.e. 64+5000=5064 (kbps); The UE2 service rate is 10000kbps, and the UE3 service rate is 10128kbps, i.e. 128+10000=10128 (kbps); The service rate of the edge customer of sub-district A0 is the service rate sum of UE1, UE2 and UE3, i.e. the service rate TA=5064+10000+10128=25192 (kbps) of the edge customer of sub-district A0;
The UE1 service rate is 6024kbps among the B0 of sub-district, i.e. 1024+5000=6024 (kbps); The UE2 service rate is 10128kbps, i.e. 128+10000=10128 (kbps); The service rate of the edge customer of sub-district B0 is the service rate sum of UE1, UE2, i.e. the service rate TB=6024+10128=16152 (kbps) of the edge customer of sub-district B0;
The UE1 service rate is 10512kbps among the C0 of sub-district, i.e. 512+10000=10512 (kbps); The service rate TC of the edge customer of sub-district C0 is UE1 service rate 10512kbps.
Step 402, obtain each sub-district edge customer service rate and belong to the proportionate relationship between total service rate of edge customer of all sub-districts of same base station;
The proportionate relationship of sub-district A0 is: TA/ (TA+TB+TC)=25192/ (25192+16152+10512) ≈ 0.49;
The proportionate relationship of sub-district B0 is: TB/ (TA+TB+TC)=16152/ (25192+16152+10512) ≈ 0.31;
The proportionate relationship of sub-district C0 is: TC/ (TA+TB+TC)=10512/ (25192+16152+10512) ≈ 0.20.
Step 403, according to the proportionate relationship and the total edge frequency resource of each sub-district, obtain the frequency resource demand of the edge customer of each sub-district; Concrete, because the total edge frequency resource is 10M, therefore, the frequency resource demand of the edge customer of sub-district A0 is 0.49*10=4.9M; The frequency resource demand of the edge customer of sub-district B0 is 0.31*10=3.1M; The frequency resource demand of the edge customer of sub-district C0 is 0.20*10=2M.
Can get access to the frequency resource demand of all sub-districts edge customer separately that belongs to same base station 0 through above-mentioned steps.Can use RB (Resources B1ock, Resource Block) to characterize above-mentioned marginal frequency resource, generally speaking, 1M converts according to 5 RB, so the frequency resource demand of the edge customer of sub-district A0 is 25 RB of 5*4.9=24.5 ≈; The frequency resource demand of the edge customer of sub-district C0 is 5*2=10 RB; The frequency resource demand of the edge customer of sub-district B0 is 5*10-25-10=15 RB.After having confirmed the frequency resource demand of edge customer of all sub-districts, be each cell allocation marginal frequency resource, continue to carry out following steps:
Step 404, sub-district that the sub-district medium frequency resource requirement of unallocated marginal frequency resource is maximum are as current area; The frequency resource demand of the edge customer of sub-district A0 is 25 RB; The frequency resource demand of the edge customer of sub-district B0 is 15 RB; The frequency resource demand of the edge customer of sub-district C0 is 10 RB, if the unallocated marginal frequency resource of sub-district A0, then sub-district A0 is a current area; If sub-district A0 is the allocations of edge frequency resource, then sub-district B0 is a current area; If sub-district A0, B0 be allocations of edge frequency resource all, then sub-district C0 is a current area.If the sub-district of no unallocated marginal frequency resource explains that then the marginal frequency resource allocation finishes.
Step 405, obtain the frequency resource demand and the frequency resource demand sum of the edge customer of the sub-district of allocations of edge frequency resource of the edge customer of current area;
Concrete, if sub-district A0 is a current area, the frequency resource demand of then obtaining its edge customer is 25 RB, endlessly the sub-district of allocations of edge frequency resource; If sub-district B0 is a current area, the frequency resource demand of then obtaining its edge customer is 15 RB, and the frequency resource demand sum of the edge customer of the sub-district of allocations of edge frequency resource is 25 RB; If sub-district C0 is a current area, the frequency resource demand of then obtaining its edge customer is 10 RB, and the frequency resource demand sum of the edge customer of the sub-district of allocations of edge frequency resource is 40 RB.
Step 406, obtain the interfering frequency resource between current area and the neighbor cell; Can know that according to Fig. 3 if the neighbor cell of sub-district A0 is sub-district B5, C6, the neighbor cell of sub-district B0 is A2, C1, the neighbor cell of sub-district C0 is sub-district A3, B4; Information interaction is passed through in base station under the current area and the base station under the neighbor cell; Get access to the interfering frequency resource between the neighbor cell, for example: obtain in high interference indication in the up channel that sends the base station under the neighbor cell and/or the down channel arrowband transmitted power relatively and be 1 RB number.
Above-mentioned steps 405 can be exchanged sequencing with step 406 when carrying out.
Step 407, judge that the total edge frequency resource removes the residue edge frequency resource that obtains after the frequency resource demand sum of the edge customer of the sub-district of allocations of edge frequency resource, the interfering frequency resource, whether be not less than the frequency resource demand of the edge customer of current area; If be not less than execution in step 408; If less than, execution in step 409;
Concrete; If sub-district A0 is a current area; Then the frequency resource demand sum of the edge customer of the sub-district of allocations of edge frequency resource is 0, supposes that the interfering frequency resource is 2 RB, and remaining the edge frequency resource so is 48 RB; Be 10*5-2=48 RB, be not less than 25 RB of frequency resource demand of the edge customer of sub-district A0; If sub-district B0 is a current area; Then the frequency resource demand sum of the edge customer of the sub-district of allocations of edge frequency resource is 25 RB; Be the frequency resource demand of the edge customer of sub-district A0, suppose that the interfering frequency resource is 5 RB, remaining the edge frequency resource so is 20 RB; Be 10*5-25-5=20 RB, be not less than 15 RB of frequency resource demand of the edge customer of sub-district B0; If sub-district C0 is a current area; Then the frequency resource demand sum of the edge customer of the sub-district of allocations of edge frequency resource is 40 RB; Be the frequency resource demand of the edge customer of sub-district A0, B0, suppose that the interfering frequency resource is 6 RB, remaining the edge frequency resource so is 4 RB; Be 10*5-25-15-6=4 RB, less than 10 RB of frequency resource demand of the edge customer of sub-district C0.
Step 408, according to the frequency resource demand assignment marginal frequency resource of the edge customer of current area;
Step 409, will remain the edge frequency resource and all distribute to current area; And the interfering frequency resource between current area and neighbor cell, obtain the marginal frequency resource that differs between frequency resource demand and the residue edge frequency resource of edge customer of current area.
Repeat above-mentioned steps and distribute each sub-district in the base station 0, and each sub-district in other base stations.
Through foregoing description, can find out the method for the marginal frequency resource allocation that the use embodiment of the invention provides; Can be according to the marginal frequency resource allocation marginal frequency resource of each sub-district demand; Avoided marginal frequency inadequate resource that fixed allocation marginal frequency resource brings or too much problem, simultaneously, when reasonable distribution marginal frequency resource; Take into full account the interference between the neighbor cell, avoided the interference between the sub-district as far as possible.
The method of the marginal frequency resource allocation that the embodiment of the invention is provided through another specific embodiment below is elaborated, and as shown in Figure 5, sub-district A0, B0, C0 belong to base station 0; Sub-district A1, B1, C1 belong to base station 1, and sub-district A2, B2, C2 belong to base station 2, and sub-district A3, B3, C3 belong to base station 3; And sub-district A0 does not have neighbor cell, and the neighbor cell of sub-district B0 is A2, C1, and the neighbor cell of sub-district C0 is A3; Suppose that the total edge frequency resource is 10M, the concrete condition of each sub-district is identical with a last embodiment, when using the method that the embodiment of the invention provides; As shown in Figure 6, may further comprise the steps:
Step 601, obtain the service rate of the edge customer of sub-district A0, B0, C0;
Wherein, the UE1 service rate is 5064kbps among the A0 of sub-district, i.e. 64+5000=5064 (kbps); The UE2 service rate is 10000kbps, and the UE3 service rate is 10128kbps, i.e. 128+10000=10128 (kbps); The service rate of the edge customer of sub-district A0 is the service rate sum of UE1, UE2 and UE3, i.e. the service rate TA=5064+10000+10128=25192 (kbps) of the edge customer of sub-district A0;
The UE1 service rate is 6024kbps among the B0 of sub-district, i.e. 1024+5000=6024 (kbps); The UE2 service rate is 10128kbps, i.e. 128+10000=10128 (kbps); The service rate of the edge customer of sub-district B0 is the service rate sum of UE1, UE2, i.e. the service rate TB=6024+10128=16152 (kbps) of the edge customer of sub-district B0;
The UE1 service rate is 10512kbps among the C0 of sub-district, i.e. 512+10000=10512 (kbps); The service rate TC of the edge customer of sub-district C0 is UE1 service rate 10512kbps.
Step 602, obtain proportionate relationship between total service rate of edge customer of service rate and all sub-districts of edge customer of sub-district A0, B0, C0 respectively;
The proportionate relationship of sub-district A0 is: TA/ (TA+TB+TC)=25192/ (25192+16152+10512) ≈ 0.49;
The proportionate relationship of sub-district B0 is: TB/ (TA+TB+TC)=16152/ (25192+16152+10512) ≈ 0.31;
The proportionate relationship of sub-district C0 is: TC/ (TA+TB+TC)=10512/ (25192+16152+10512) ≈ 0.20.
Step 603, according to the proportionate relationship and the total edge frequency resource of each sub-district, obtain the frequency resource demand of the edge customer of each sub-district; Concrete, because the total edge frequency resource is 10M, therefore, the frequency resource demand of the edge customer of sub-district A0 is 0.49*10=4.9M; The frequency resource demand of the edge customer of sub-district B0 is 0.31*10=3.1M; The frequency resource demand of the edge customer of sub-district C0 is 0.20*10=2M.
Can get access to the frequency resource demand of all sub-districts edge customer separately that belongs to same base station 0 through above-mentioned steps.Can use RB to characterize above-mentioned marginal frequency resource, generally speaking, 1M calculates according to 5 RB, so the frequency resource demand of the edge customer of sub-district A0 is 25 RB of 5*4.9=24.5 ≈; The frequency resource demand of the edge customer of sub-district C0 is 5*2=10 RB; The frequency resource demand of the edge customer of sub-district B0 is 5*10-25-10=15 RB.After having confirmed the frequency resource demand of edge customer of all sub-districts, be each cell allocation marginal frequency resource, continue to carry out following steps:
Step 604, with sub-district A0 as current area, judge that the total edge frequency resource is not less than the frequency resource demand of the edge customer of sub-district A0, according to the frequency resource demand assignment marginal frequency resource of the edge customer of sub-district A0;
Concrete because the frequency resource demand of the edge customer of sub-district A0 is 25 RB, greater than sub-district B0, C0 frequency resource demand separately, therefore with sub-district A0 as current area.And sub-district A0 does not have neighbor cell, so, in 50 RB of total edge frequency resource, select 25 RB to be assigned to sub-district A0 at random and get final product.
Step 605, with sub-district B0 as current area, obtain its edge customer the frequency resource demand, with the frequency resource demand of the edge customer of the interfering frequency resource of neighbor cell and sub-district A0;
Concrete, the frequency resource demand of the edge customer of sub-district B0 is 15 RB, is not less than 10 RB of frequency resource demand of the edge customer of sub-district C0, therefore with sub-district B0 as current area.By shown in Figure 5; The neighbor cell of sub-district B0 is sub-district A2, C1; Base station 2 under base station 0 under the B0 of sub-district and the sub-district A2 is through information interaction, obtains HII between current area B0 and the neighbor cell A2 and/or RNTP and be 1 RB, supposes that this jamming resource is 1 RB; Base station 1 under base station 0 under the B0 of sub-district and the sub-district C1 is through information interaction, obtains HII between current area B0 and the neighbor cell C1 and/or RNTP and is 1 RB and suppose that this jamming resource is 2 RB.
The residue edge frequency resource that obtains after step 606, the frequency resource demand of judging the edge customer of total edge frequency resource removal sub-district A0, the interfering frequency resource; After being not less than the frequency resource demand of edge customer of current area B0; In the total edge frequency resource, the frequency resource allocation that the edge customer of sub-district B0 is required is to sub-district B0;
Concrete; The total edge frequency resource is 50 RB, and the frequency resource demand of the edge customer of sub-district A0 is 25 RB, and the interfering frequency resource of supposing sub-district B0 is 3 RB; Then remaining the edge frequency resource is 22 RB, greater than 15 RB of frequency resource demand of the edge customer of sub-district B0.In 50 RB of total edge frequency resource, select 15 RB to be assigned to sub-district B0 at random.
Step 607, with sub-district C0 as current area, obtain its edge customer the frequency resource demand, with the frequency resource demand sum of the edge customer of the jamming resource of neighbor cell and sub-district A0, B0;
Concrete; By shown in Figure 5, the neighbor cell of sub-district C0 is sub-district A3, and information interaction is passed through with the base station 3 under the A3 of sub-district in the base station 0 under the C0 of sub-district; Obtain HII between current area C0 and the neighbor cell A3 and/or RNTP and be 1 RB, suppose that this jamming resource is 5 RB.
The residue edge frequency resource that obtains after step 608, the frequency resource demand sum of judging the edge customer of total edge frequency resource removal sub-district A0, B0, the interfering frequency resource; After the frequency resource demand less than the edge customer of current area C0, surplus resources all is assigned to sub-district C0 and in the interfering frequency resource, obtains the marginal frequency resource that differs.
Concrete; The total edge frequency resource is 50 RB; The frequency resource demand of the edge customer of sub-district A0 is 25 RB, and the frequency resource demand of the edge customer of sub-district B0 is 15 RB, and the interfering frequency resource of supposing sub-district C0 is 5 RB; Then remaining the edge frequency resource is 5 RB, less than 10 RB of frequency resource demand of the edge customer of sub-district C0.Therefore, will remain the edge frequency resource and all be assigned to sub-district C0, and in jamming resource, select 5 RB to be assigned to sub-district C0 at random.
Through foregoing description, can find out the method for the marginal frequency resource allocation that the use embodiment of the invention provides; Can be according to the marginal frequency resource requirement allocations of edge frequency resource of each sub-district; Avoided marginal frequency inadequate resource that fixed allocation marginal frequency resource brings or too much problem, simultaneously, when reasonable distribution marginal frequency resource; Take into full account the interference between the neighbor cell, avoided the interference between the sub-district as far as possible.
Accordingly, the embodiment of the invention also provides a kind of device of marginal frequency resource allocation, and is as shown in Figure 7, specifically comprises:
Acquisition module 701 is used to obtain the frequency resource demand of the edge customer of each sub-district;
Distribution module 702 is used for the frequency resource demand according to the edge customer of each sub-district, and the interfering frequency resource between said each sub-district and the neighbor cell, and the total edge frequency resource is assigned to said each sub-district successively.
Preferable, this acquisition module 701 comprises:
First obtains submodule 7011, is used to obtain the service rate of the edge customer of each sub-district that belongs to same base station;
Second obtains submodule 7012, be used to obtain each sub-district edge customer service rate and belong to the proportionate relationship between total service rate of edge customer of all sub-districts of same base station;
The 3rd obtains submodule 7013, is used for proportionate relationship and total edge frequency resource according to said each sub-district, obtains the frequency resource demand of the edge customer of each sub-district.
Preferable, this distribution module 702 comprises:
The cell edge frequency resource is obtained submodule 7021; Be used for the sub-district that the required marginal frequency resource in the sub-district of unallocated marginal frequency resource is maximum as current area, obtain the frequency resource demand and the frequency resource demand sum of the edge customer of the sub-district of allocations of edge frequency resource of the edge customer of said current area;
Jamming resource obtains submodule 7022, is used to obtain the interfering frequency resource between said current area and the neighbor cell;
Judge submodule 7023; Be used to judge that the total edge frequency resource removes the residue edge frequency resource that obtains after the frequency resource demand sum, said interfering frequency resource of edge customer of sub-district of the said frequency resource of allocations of edge, whether be not less than the marginal frequency resource requirement of the edge customer of said current area;
First processing sub 7024; The judged result that is used for when said judgement submodule 7023 is the frequency resource demand that said residue edge frequency resource is not less than the edge customer of said current area, then according to the frequency resource demand assignment marginal frequency resource of the edge customer of said current area;
Second processing sub 7025; The judged result that is used for when said judgement submodule 7023 is the frequency resource demand of said residue edge frequency resource less than the edge customer of said current area; Then said residue edge frequency resource is all distributed to said current area; And the interfering frequency resource between said current area and neighbor cell, obtain the marginal frequency resource that differs between frequency resource demand and the said residue edge frequency resource of edge customer of said current area.
Through foregoing description, can find out the device of the marginal frequency resource allocation that the use embodiment of the invention provides; Can be according to the marginal frequency resource allocation marginal frequency resource of each sub-district demand; Avoided marginal frequency inadequate resource that fixed allocation marginal frequency resource brings or too much problem, simultaneously, when reasonable distribution marginal frequency resource; Take into full account the interference between the neighbor cell, avoided the interference between the sub-district as far as possible.
Accordingly, the embodiment of the invention also provides a kind of equipment, comprising: the device of marginal frequency resource allocation;
The device of this marginal frequency resource allocation comprises: acquisition module is used to obtain the frequency resource demand of the edge customer of each sub-district; Distribution module is used for the frequency resource demand according to the edge customer of each sub-district, and the interfering frequency resource between said each sub-district and the neighbor cell, and the total edge frequency resource is assigned to said each sub-district successively.
Accordingly, the embodiment of the invention also provides a kind of marginal frequency resource distributor system, comprising: a plurality of base stations;
Each base station is used to obtain the frequency resource demand of the edge customer of each sub-district; According to the frequency resource demand of the edge customer of each sub-district, and the interfering frequency resource between said each sub-district and the neighbor cell, the total edge frequency resource is assigned to said each sub-district successively.
Through foregoing description, can find out method, device, system and the equipment of the marginal frequency resource allocation that the use embodiment of the invention provides; Can be according to the marginal frequency resource allocation marginal frequency resource of each sub-district demand; Avoided marginal frequency inadequate resource that fixed allocation marginal frequency resource brings or too much problem, simultaneously, when reasonable distribution marginal frequency resource; Take into full account the interference between the neighbor cell, avoided the interference between the sub-district as far as possible.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.

Claims (10)

1. the method for a marginal frequency resource allocation is characterized in that, comprising:
Obtain the frequency resource demand of the edge customer of each sub-district;
According to the frequency resource demand of the edge customer of each sub-district, and the interfering frequency resource between said each sub-district and the neighbor cell, the total edge frequency resource is assigned to said each sub-district successively.
2. the method for claim 1 is characterized in that, the said frequency resource demand of obtaining the edge customer of each sub-district comprises:
Obtain the service rate of the edge customer of each sub-district that belongs to same base station;
Obtain each sub-district edge customer service rate and belong to the proportionate relationship between total service rate of edge customer of all sub-districts of same base station;
According to the proportionate relationship and the total edge frequency resource of said each sub-district, obtain the frequency resource demand of the edge customer of each sub-district.
3. the method for claim 1; It is characterized in that the frequency resource demand of said edge customer according to each sub-district, and the interfering frequency resource between said each sub-district and the neighbor cell; The total edge frequency resource is assigned to said each sub-district successively, comprises:
The sub-district that the sub-district medium frequency resource requirement of unallocated marginal frequency resource is maximum is as current area, obtains the frequency resource demand and the frequency resource demand sum of the edge customer of the sub-district of allocations of edge frequency resource of the edge customer of said current area;
Obtain the interfering frequency resource between said current area and the neighbor cell;
Judge that the total edge frequency resource removes the residue edge frequency resource that obtains after the frequency resource demand sum, said interfering frequency resource of edge customer of sub-district of the said frequency resource of allocations of edge, whether be not less than the frequency resource demand of the edge customer of said current area;
If said residue edge frequency resource is not less than the frequency resource demand of the edge customer of said current area, then according to the frequency resource demand assignment marginal frequency resource of the edge customer of said current area;
If said residue edge frequency resource is less than the frequency resource demand of the edge customer of said current area; Then said residue edge frequency resource is all distributed to said current area; And the interfering frequency resource between said current area and neighbor cell, obtain the marginal frequency resource that differs between frequency resource demand and the said residue edge frequency resource of edge customer of said current area.
4. method as claimed in claim 3 is characterized in that, the said interfering frequency resource of obtaining between said current area and the neighbor cell comprises:
Interfere information according to send the base station under the neighbor cell obtains the interfering frequency resource between current area and the neighbor cell.
5. method as claimed in claim 4 is characterized in that, said interfere information includes but not limited to: high interference indication in the up channel and/or the relative arrowband transmitted power in the down channel.
6. the device of a marginal frequency resource allocation is characterized in that, comprising:
Acquisition module is used to obtain the frequency resource demand of the edge customer of each sub-district;
Distribution module is used for the frequency resource demand according to the edge customer of each sub-district, and the interfering frequency resource between said each sub-district and the neighbor cell, and the total edge frequency resource is assigned to said each sub-district successively.
7. device as claimed in claim 6 is characterized in that, said acquisition module comprises:
First obtains submodule, is used to obtain the service rate of the edge customer of each sub-district that belongs to same base station;
Second obtains submodule, be used to obtain each sub-district edge customer service rate and belong to the proportionate relationship between total service rate of edge customer of all sub-districts of same base station;
The 3rd obtains submodule, is used for proportionate relationship and total edge frequency resource according to said each sub-district, obtains the frequency resource demand of the edge customer of each sub-district.
8. device as claimed in claim 6 is characterized in that, said distribution module comprises:
The cell edge frequency resource is obtained submodule; Be used for the sub-district that the required frequency resource in the sub-district of unallocated marginal frequency resource is maximum as current area, obtain the frequency resource demand and the frequency resource demand sum of the edge customer of the sub-district of allocations of edge frequency resource of the edge customer of said current area;
Jamming resource obtains submodule, is used to obtain the interfering frequency resource between said current area and the neighbor cell;
Judge submodule; Be used to judge that the total edge frequency resource removes the residue edge frequency resource that obtains after the frequency resource demand sum, said interfering frequency resource of edge customer of sub-district of the said frequency resource of allocations of edge, whether be not less than the frequency resource demand of the edge customer of said current area;
First processing sub; The judged result that is used for when said judgement submodule is the frequency resource demand that said residue edge frequency resource is not less than the edge customer of said current area, then according to the frequency resource demand assignment marginal frequency resource of the edge customer of said current area;
Second processing sub; The judged result that is used for when said judgement submodule is the frequency resource demand of said residue edge frequency resource less than the edge customer of said current area; Then said residue edge frequency resource is all distributed to said current area; And the interfering frequency resource between said current area and neighbor cell, obtain the marginal frequency resource that differs between frequency resource demand and the said residue edge frequency resource of edge customer of said current area.
9. an equipment is characterized in that, comprising: the device of marginal frequency resource allocation;
The device of marginal frequency resource allocation comprises:
Acquisition module is used to obtain the frequency resource demand of the edge customer of each sub-district;
Distribution module is used for the frequency resource demand according to the edge customer of each sub-district, and the interfering frequency resource between said each sub-district and the neighbor cell, and the total edge frequency resource is assigned to said each sub-district successively.
10. a marginal frequency resource distributor system is characterized in that, comprising: a plurality of base stations;
Each said base station is used to obtain the frequency resource demand of the edge customer of each sub-district; According to the frequency resource demand of the edge customer of each sub-district, and the interfering frequency resource between said each sub-district and the neighbor cell, the total edge frequency resource is assigned to said each sub-district successively.
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