CN102958069B - The determination method and apparatus of network covering property - Google Patents
The determination method and apparatus of network covering property Download PDFInfo
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- CN102958069B CN102958069B CN201210491010.0A CN201210491010A CN102958069B CN 102958069 B CN102958069 B CN 102958069B CN 201210491010 A CN201210491010 A CN 201210491010A CN 102958069 B CN102958069 B CN 102958069B
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Abstract
The invention discloses a kind of network covering property defining method, comprising: determine each cell available resources number, the resource in each community is numbered; Within the scope of the resource number of each community, select the Base Serial Number of available resources, determine the available resources position of each community according to the relation of Base Serial Number and each cell available resources number; Available resources position according to each community obtains network covering property.The present invention also also discloses a kind of network covering property determining device, adopt the inventive method and device, number of resources and resource location can be considered, compared with existing LTE planning simulation, with the Resourse Distribute of true LTE communication closer to, improve authenticity and the accuracy of the network covering property prediction of LTE communication system, thus the covering performance of Accurate Prediction LTE communication system.
Description
Technical field
The present invention relates to the network plan simulation in radio communication, particularly relate to the determination method and apparatus of network covering property in a kind of LTE planning simulation.
Background technology
Downlink physical shared channel (PDSCH, PhysicalDownlinkSharedChannel) is the down physical channel of Long Term Evolution (LTE, LongTermEvolution) protocol definition, transmits for downlink service data.
PDSCH carrier-in-interference noise ratio (CINR, Carrier-to-InterferenceplusNoiseRatio) is the ratio of Serving cell PDSCH signal strength signal intensity and interference signal intensity.By calculating PDSCHCINR, can reflect that Serving cell PDSCH's is disturbed degree, thus determining modulation coding mode and throughput, therefore in the network plan simulation of LTE communication system, PDSCHCINR is the important indicator of prediction network covering property.
In the LTE communication system of reality, LTE downlink resource distributes and comprises number of resources and to distribute and resource location determines two parts, and wherein number of resources distribution is calculated in conjunction with the channel quality of user according to the current transport service amount that needs of user; And the equipment in LTE communication system needs to consider resource location, the determination of its resource location is the resource that the number of resources needed according to user finally determines on which position of CU.The number of resources of finally distributing according to user and resource location thus determine the interference suffered by PDSCH, calculate PDSCHCINR.
At present, the LTE planning simulation of industry can predict the network coverage index under different load, the network performance of reflection LTE communication system.But for PDSCH, owing to only considered the distribution of number of resources under different load in LTE planning simulation, do not consider the determination of resource location, thus there is some difference to cause the result of the PDSCHCINR obtained in LTE planning simulation and actual LTE communication system, causes the PDSCHCINR that LTE planning simulation can not be used to obtain accurately to weigh network covering property.
Summary of the invention
In view of this, main purpose of the present invention is the determination method and apparatus providing network covering property in a kind of LTE planning simulation, the PDSCHCINR Accurate Prediction network covering property that LTE planning simulation is obtained.
In order to achieve the above object, technical scheme of the present invention is achieved in that
A kind of network covering property defining method, described method comprises: determine each cell available resources number, be numbered the resource in each community; Within the scope of the resource number of each community, select the Base Serial Number of available resources, determine the available resources position of each community according to the relation of Base Serial Number and each cell available resources number; Available resources position according to each community obtains network covering property.
Described determine each cell available resources number before, also comprise: import base station information table, relevant information is set according to base station information table.
Describedly determine each cell available resources number, comprising: load load according to described relevant information Zhong Ge community and determine each cell available resources number.
Described according to described relevant information Zhong Ge community loading load determination cell available resources number, for: the product of the Resource Block RB Shuo Yu community loading load that system bandwidth is corresponding.
The described relation according to Base Serial Number and each cell available resources number also comprises: the Serial Number Range of the RB in each community is 1 ~ N before determining the available resources position in each community
rB, in Serial Number Range, Stochastic choice can use the Base Serial Number of RB, wherein N
rBfor the RB number that system bandwidth is corresponding.
The described relation according to Base Serial Number and each cell available resources number determines the available resources position of each community, comprise: be community order-assigned Cell_Available_RB available RB from RB_Available_Start, and record the numbering of the RB distributed; Work as N
rBduring-RB_Start_Number < Cell_Available_RB, then continue to continue to distribute from first RB until distribute Cell_Available_RB available RB;
Wherein, RB_Available_Start is the Base Serial Number that RB can be used in the community selected; Cell_Available_RB is the actual operable RB number in community; N
rBfor the RB number that system bandwidth is corresponding.
The described available resources position according to each community obtains network covering property, comprising: determine each cell downlink Physical Shared Channel carrier-in-interference noise ratio PDSCHCINR or downlink physical shared channel Signal to Interference plus Noise Ratio PDSCHSINR.
A kind of network covering property determining device, described device comprises:
Determination module, for determining each cell available resources number, is numbered the resource in each community;
Resource location module, for selecting the Base Serial Number of available resources within the scope of the resource number of each community, determines the available resources position of each community according to the relation of Base Serial Number and each cell available resources number;
Prediction module, obtains network covering property for the available resources position according to each community.
Described determination module specifically for: select and import base station information table, according to the optimum configurations relevant information of base station information table, according to arrange relevant information Zhong Ge community load load determine each cell available resources number.
Described resource location module specifically for:
Be numbered 1 ~ N
rBrB in Stochastic choice community with the Base Serial Number RB_Available_Start of RB, can be community order-assigned Cell_Available_RB available RB from RB_Available_Start, and record the numbering of the RB distributed; Work as N
rBduring-RB_Start_Number < Cell_Available_RB, then continue to continue to distribute from first RB until distribute Cell_Available_RB available RB, wherein N
rBfor the RB number that system bandwidth is corresponding;
Wherein N
rBfor the RB number that system bandwidth is corresponding.
Adopt scheme of the present invention, number of resources and resource location can be considered, compared with existing LTE planning simulation, with the Resourse Distribute of true LTE communication closer to, improve authenticity and the accuracy of the network covering property prediction of LTE communication system, thus the covering performance of Accurate Prediction LTE communication system.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet that the present invention realizes determining in LTE planning simulation network covering property;
Fig. 2 is the apparatus structure schematic diagram that the present invention realizes determining in LTE planning simulation network covering property.
Embodiment
Basic thought of the present invention is: determine each cell available resources number, be numbered the resource in each community; Within the scope of the resource number of each community, select the Base Serial Number of available resources, determine the available resources position of each community according to the relation of Base Serial Number and each cell available resources number; Available resources position according to each community obtains network covering property.
Fig. 1 is the schematic flow sheet that the present invention realizes determining in LTE planning simulation network covering property, as shown in Figure 1, comprises the following steps:
Base station information table is imported Simulation Interface by step 101:LTE planning simulation equipment, arranges relevant information according to base station information table;
Particularly, equipment, i.e. LTE planning simulation equipment for carrying out LTE planning simulation run LTE planning simulation software, and store base station information table template, import interface from emulation select and import base station information table, according to the optimum configurations relevant information in base station information table, such as, every Resource Unit (the RE of PDSCH is set, ResourceElement) transmitting power and each community load load, parameter in base station information table needs to be consistent with the setting in actual LTE communication system, thus Accurate Prediction network covering property.
Step 102:LTE planning simulation equipment loads load according to the relevant information Zhong Ge community that step 101 is arranged and determines each cell available resources number;
Concrete, each cell available resources number is specially:
Cell_Available_RB=N
rB* community loads load;
Wherein, Cell_Available_RB is actual operable Resource Block (RB, the ResourceBlock) number in community, and it is subject to the impact that community loads load, such as when system bandwidth 20MHz, always has 100 RB, i.e. N
rB=100, but the community of LTE communication system load load be set to 50%, namely community load load=50%, so actual operablely just only have 50 RB, i.e. Cell_Available_RB=100* community to load load 50%=50;
N
rBfor the RB number that system bandwidth is corresponding.
Step 103:LTE planning simulation equipment is numbered the resource in each community, and the scope of numbering is specifically as follows 1 ~ N
rB.
Step 104:LTE planning simulation equipment selects the Base Serial Number of available resources within the scope of the resource number of each community, determines the available resources position of each community according to the relation of Base Serial Number and each cell available resources number;
Concrete, be numbered 1 ~ N
rBrB in Stochastic choice community with the Base Serial Number RB_Available_Start of RB, owing to being Stochastic choice, so can be consistent with actual LTE communication system, the accuracy of LTE planning simulation can be improved;
Be community order-assigned Cell_Available_RB available RB from RB_Available_Start, and record the numbering of the RB distributed; Work as N
rBduring-RB_Start_Number < Cell_Available_RB, owing to being dispensed to N
rBtime also unallocated enough resources, then continue to continue to distribute from first RB until distribute Cell_Available_RB available RB;
Such as, if Cell_Available_RB=50, N
rBbe 100;
If RB_Start_Number=11, then the RB distributed can be 11 ~ 60;
If RB_Start_Number=91, then the RB distributed can be 91 ~ 100 and 1 ~ 40.
Step 105:LTE planning simulation equipment determines network covering property according to the available resources position of each community;
Below to determine each community PDSCHCINR, to determining that network covering property is described in detail.
Due to the PDSCH Signal to Interference plus Noise Ratio (SINR for embodying network covering property, SignaltoInterferenceplusNoiseRatio) identical with PDSCHCINR essence, therefore, these two parameters are often used with, and respective computing formula is also identical, therefore, below only how to determine the specific implementation of clearly determining network covering property PDSCHCINR;
Concrete, PDSCHCINR is specially:
PDSCHCINR＝S/(I+N)
Wherein, S is Serving cell PDSCH total received power; I is the interference of abutting subdistrict to Serving cell, and its numerical value equals each PDSCH mono-RB received power sum of the identical numbering RB in neighbor cell; N makes an uproar at the bottom of receiver, is take bandwidth as the function of variable, and the community that is calculated as of bandwidth loads load * N
rB.
Concrete, Serving cell PDSCH total received power S is specially:
The mono-RB received power of S=Cell_Available_RB*PDSCH;
Wherein, the mono-RB transmitting power-propagation loss of PDSCH mono-RB received power=PDSCH;
PDSCH mono-RB transmitting power can be multiplied by the RE number that every RB comprises and obtain by the transmitting power of the every RE of PDSCH in the relevant information that arranges in step 101;
When determining PDSCHCINR, also relate to propagation loss, and propagation loss can obtain based on existing network drive test data (drive test data of such as GSM or UMTS), also can obtain based on propagation model prediction.Concrete, the propagation model formula according to propagation model prediction calculates propagation loss; Then obtain propagation loss from test data based on existing network drive test data.
Describing visible according to above, after the present invention considers resource location in LTE planning simulation, when determining network covering property, the interference of the resource of neighbor cell same position can be taken into account, thus make the network covering property determined more accurate.
Such as, the best server cell of terminal Term1 is community Cell1, Cell2 is a coverage cell of Term1, a terminal Term2 is had in Cell2, the RB numbering that Term1 and Term2 uses is respectively 0 ~ 10,5 ~ 15, then Term2 brings the RB of interference to be the RB of numbering 5 ~ 10 to Term1, so, when determining PDSCHCINR, then only calculate the interference on these RB.
By above step, the calculating of Resourse Distribute and the PDSCHCINR numbered based on RB can be realized, thus the network covering property of Accurate Prediction LTE communication system.
Fig. 2 is the apparatus structure schematic diagram that the present invention realizes determining in LTE planning simulation network covering property, as shown in Figure 2, comprising:
Determination module 21, for determining each cell available resources number, is numbered the resource in each community;
Resource location module 22, for selecting the Base Serial Number of available resources within the scope of the resource number of each community, determines the available resources position of each community according to the relation of Base Serial Number and each cell available resources number;
Prediction module 23, obtains network covering property for the available resources position according to each community.
Concrete, determination module 21 specifically for: select and import base station information table, according to the optimum configurations relevant information in base station information table, described relevant information comprises transmitting power and each community loading load of the every RE of PDSCH, loads load determine each cell available resources number according to the relevant information Zhong Ge community arranged.
Concrete, resource location module 22 specifically for: be numbered 1 ~ N
rBrB in Stochastic choice community with the Base Serial Number RB_Available_Start of RB, can be community order-assigned Cell_Available_RB available RB from RB_Available_Start, and record the numbering of the RB distributed; Work as N
rBduring-RB_Start_Number < Cell_Available_RB, then continue to continue to distribute from first RB until distribute Cell_Available_RB available RB, wherein N
rBfor the RB number that system bandwidth is corresponding.
The specific implementation of prediction module 23 can with reference to the step 105 described in previous methods.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (8)
1. a network covering property defining method, is characterized in that, described method comprises:
Determine each cell available resources number, the resource in each community is numbered;
Within the scope of the resource number of each community, select the Base Serial Number of available resources, determine the available resources position in each community according to the relation of Base Serial Number and each cell available resources number;
The described relation according to Base Serial Number and each cell available resources number determines that the available resources position in each community comprises: be community order-assigned Cell_Available_RB available RB from RB_Available_Start, and record the numbering of the RB distributed; Work as N
rBduring-RB_Start_Number<Cell_Available_RB, then continue to continue to distribute from first RB until distribute Cell_Available_RB available RB;
Available resources position according to each community obtains network covering property;
Wherein, RB_Available_Start is the Base Serial Number that RB can be used in the community selected, and Cell_Available_RB is the actual operable RB number in community, N
rBfor the RB number that system bandwidth is corresponding, RB_Start_Number is the Base Serial Number of unappropriated RB.
2. method according to claim 1, is characterized in that, described determine each cell available resources number before, also comprise:
Import base station information table, relevant information is set according to base station information table.
3. method according to claim 2, is characterized in that, describedly determines each cell available resources number, comprising:
Load load according to described relevant information Zhong Ge community and determine each cell available resources number.
4. method according to claim 3, is characterized in that, described according to described relevant information Zhong Ge community loading load determination cell available resources number, for:
The product of the Resource Block RB Shuo Yu community loading load that system bandwidth is corresponding.
5. method according to claim 1, is characterized in that, the described relation according to Base Serial Number and each cell available resources number also comprises before determining the available resources position in each community:
The Serial Number Range of the RB in each community is 1 ~ N
rB, in Serial Number Range, Stochastic choice can use the Base Serial Number of RB, wherein N
rBfor the RB number that system bandwidth is corresponding.
6., according to the arbitrary described method of claim 1 to 5, it is characterized in that, the described available resources position according to each community obtains network covering property, comprising:
Determine each cell downlink Physical Shared Channel carrier-in-interference noise ratio PDSCHCINR or downlink physical shared channel Signal to Interference plus Noise Ratio PDSCHSINR.
7. a network covering property determining device, is characterized in that, described device comprises:
Determination module, for determining each cell available resources number, is numbered the resource in each community;
Resource location module, for selecting the Base Serial Number of available resources within the scope of the resource number of each community, determines the available resources position in each community according to the relation of Base Serial Number and each cell available resources number;
The described relation according to Base Serial Number and each cell available resources number determines that the available resources position in each community comprises: be numbered 1 ~ N
rBrB in Stochastic choice community with the Base Serial Number RB_Available_Start of RB, can be community order-assigned Cell_Available_RB available RB from RB_Available_Start, and record the numbering of the RB distributed; Work as N
rBduring-RB_Start_Number<Cell_Available_RB, then continue to continue to distribute from first RB until distribute Cell_Available_RB available RB;
Prediction module, obtains network covering property for the available resources position according to each community;
Wherein, RB_Available_Start is the Base Serial Number that RB can be used in the community selected, and Cell_Available_RB is the actual operable RB number in community, N
rBfor the RB number that system bandwidth is corresponding, RB_Start_Number is the Base Serial Number of unappropriated RB.
8. device according to claim 7, is characterized in that, described determination module specifically for:
Select and import base station information table, according to the optimum configurations relevant information of base station information table, loading load according to the relevant information Zhong Ge community arranged and determine each cell available resources number.
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| CN101355791A (en) * | 2007-07-24 | 2009-01-28 | 华为技术有限公司 | Method and system for controlling transmission mode of edge mobile terminal |
| CN101399800A (en) * | 2007-09-27 | 2009-04-01 | 中兴通讯股份有限公司 | Resource distribution information representing method based on OFDM system |
| CN102026259A (en) * | 2010-12-06 | 2011-04-20 | 西安交通大学 | System level simulation method for CoMP (coordinated multi-point) technique in LTE-A (long term evolution-advanced) system |
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| CN101355791A (en) * | 2007-07-24 | 2009-01-28 | 华为技术有限公司 | Method and system for controlling transmission mode of edge mobile terminal |
| CN101399800A (en) * | 2007-09-27 | 2009-04-01 | 中兴通讯股份有限公司 | Resource distribution information representing method based on OFDM system |
| CN102026259A (en) * | 2010-12-06 | 2011-04-20 | 西安交通大学 | System level simulation method for CoMP (coordinated multi-point) technique in LTE-A (long term evolution-advanced) system |
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