CN103179583A - Network simulation method and device - Google Patents
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Abstract
The invention discloses a network simulation method and device. With the adoption of the technical scheme, the accuracy of a network simulation result can be improved. According to the scheme, the network simulation method comprises the steps of: determining reception power which respectively corresponds to each MR (Measurement Report) point in MR data of the current network and base station information of cells where the MR report points respectively are; determining corresponding downlink propagation loss of the cell where each MR point in the current network respectively locates based on the determination result; determining corresponding downlink propagation loss of the cell where each MR point respectively locates based on the corresponding downlink propagation loss of the cell where each MR point in the current network respectively locates and the link propagation loss differential value between the current network and the planned network; and determining the reception power respectively corresponding to each MR point when the network is planned based on the corresponding downlink propagation loss of the cell where each MR point respectively locates during the network planning and the corresponding base station information of the cell where each MR point respectively locates.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of network simulation method and device.
Background technology
Along with the growth of data traffic requirement, the mobile communications network construction has entered a new stage.In order to improve the service quality of wireless network, utilize network planning result to instruct actual networking and the network optimization, be the importance of wireless network work.
The network planning generally comprises the demand analysis of wireless network structure, the steps such as pre-planning, network simulation and radio resource parameter planning of site, base station, wherein, network simulation is one of core link of the network planning, and the accuracy of network simulation directly affects the accuracy of the network planning.At present, the related work of network simulation mainly comprises the various parameters of determining network, mainly comprises following two aspects:
One, network coverage prediction
Network coverage prediction is mainly to determine the parameters such as planning network small area received power, Signal to Interference plus Noise Ratio as the network simulation result, provides foundation to foundation and the optimization of subsequent network.Fig. 1 shows the schematic flow sheet of network coverage prediction, as shown in Figure 1, mainly comprises the steps:
Step 101, choose the base station (base station of choosing is called website) of setting number and carry out propagation model revision.
In this step 101, the base station of choosing normally can represent the base station of different types of ground objects, namely chooses the base station that is positioned under different atural object type environment.
Step 102, carry out coverage prediction based on the propagation model after proofreading and correct, and adjust site, base station and residential quarter basic parameter (site, base station after adjustment and residential quarter basic parameter are called cover index) based on the result of coverage prediction.
In this step 102, the result of coverage prediction generally comprises common signal channel and covers level, SINR probability distribution, and Traffic Channel covers the information such as level, SINR probability distribution; Result based on coverage prediction is adjusted site, base station and residential quarter basic configuration, namely adjust base station number, position, cell power configuration (transmitting power, channel emission power biasing etc.), antenna in cell configuration (antenna type, highly, deflection, angle of declination etc.).
Step 103, judgement cover the covering index whether index satisfies network planning requirement, if execution in step 104 if not, is returned to step 102.
The covering index of network planning requirement is satisfied in step 104, output.
In this step 104, the covering index of output comprises that common signal channel covers level, SINR probability distribution, and Traffic Channel covers the information such as level.
So far, the flow process of network coverage prediction finishes.
Two, capacity predict
Capacity predict is mainly to determine the parameters such as capacity of planning network as the network simulation result, provides foundation to foundation and the optimization of subsequent network.Fig. 2 shows the schematic flow sheet of capacity predict, as shown in Figure 2, mainly comprises the steps:
Step 201, the type of ground objects that characterizes with electronic chart are determined user's geographical distribution as weight parameter.
In this step 201, determine user's geographical distribution, namely determine user type and the quantity of the region allocation of different types of ground objects.
In this step 202, carry out Capacity Simulation, namely utilize the network coverage to predict the outcome and determine the overlay area of each residential quarter, user's geographical distribution information that integrating step 201 is determined, obtain the user distribution of each residential quarter, and utilize the business model of setting to carry out Monte-Carlo Simulation; Adjust cell configuration and cover parameter based on the result of Capacity Simulation, namely configure (as carrier wave configuration, time slot configuration etc.) by cell capacity and adjust, the network capacity demand is satisfied in site, base station and residential quarter basic configuration adjustment in integrating step 102.
The capacity performance index of network planning requirement is satisfied in step 204, output.
In this step 204, the capacity performance index of output comprises the information such as rate of lost call, cell downlink average throughput, cell uplink average throughput, cell downlink edge throughput, cell uplink edge throughput.
So far, the flow process of capacity predict finishes.
By Fig. 1 and flow process corresponding to Fig. 2, can determine the network simulation result that meets network planning requirement, thereby instruct network set up and optimize.The network of reality set up and optimizing process in find, the network simulation result of determining based on Fig. 1 and flow process corresponding to Fig. 2, may there are the following problems:
On the one hand, in network coverage forecasting process, carrying out propagation model that network coverage prediction uses and be website according to the setting number of choosing carries out propagation model revision and obtains, be subjected to the work quantitative limitation, be used for proofreading and correct the selected website number of propagation model more limited, therefore, this propagation module can not embody the actual transmissions situation of different base station in the real network environment, comprises the interior propagation difference of data under different directions, different atural object condition of propagation difference, base station coverage area between the base station;
On the other hand, in the capacity predict process, definite result of user's geographical distribution depends on the type of ground objects that electronic chart characterizes, should determine that result just based on a kind of rough estimation of atural object distribution situation, may differ greatly with actual user's distribution situation, and, electronic chart generally lags behind, and moreover the principle precision is limited practically, therefore, with the reference factor of electronic chart as capacity predict, may cause the deviation of capacity predict result and actual conditions.
The problem of comprehensive above-mentioned two aspects, there is deviation in the network simulation result that the above-mentioned network simulation procedure that provides based on prior art is determined with the real network environment, thereby has reduced the accuracy of network simulation result.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of network simulation method and device, adopts this technical scheme, can improve the accuracy of network simulation result, thereby instructs better networking and optimization.
The embodiment of the present invention is achieved through the following technical solutions:
An aspect according to the embodiment of the present invention provides a kind of network simulation method, comprising:
Determine corresponding received power and described each MR reporting point base station information corresponding to residential quarter at place respectively respectively of each MR reporting point in the measurement result MR data of current network;
According to base station information corresponding to residential quarter that each MR reporting point is distinguished corresponding received power and distinguished the place, determine each the MR reporting point down link propagation loss corresponding to residential quarter at place respectively in current network;
Distinguish corresponding down link propagation loss and the current network of determining and the link propagation loss difference between planning network in residential quarter at place according to each MR reporting point in current network, determine the down link propagation loss corresponding to residential quarter at place respectively when planning network of each MR reporting point;
According to described each MR reporting point down link propagation loss corresponding to the residential quarter at place and described each the MR reporting point base station information corresponding to residential quarter at place respectively respectively when the planning network, determine described each MR reporting point corresponding received power respectively when planning network.
According to another aspect of the embodiment of the present invention, a kind of network simulation device also is provided, comprising:
MR data determining unit is for received power corresponding to each MR reporting point difference of the measurement result MR data of determining current network;
The base station information determining unit is used for determining described each MR reporting point base station information corresponding to residential quarter at place respectively;
down link propagation loss determining unit, each MR reporting point that the received power that each the MR reporting point difference that is used for determining according to described MR data determining unit is corresponding and described base station information determining unit are determined is the base station information corresponding to residential quarter at place respectively, determine each the MR reporting point down link propagation loss corresponding to residential quarter at place respectively in current network, and according to the down link propagation loss corresponding to residential quarter at place respectively of each MR reporting point in current network, and the current network of determining and the link propagation loss difference between planning network, determine the down link propagation loss corresponding to residential quarter at place respectively when planning network of each MR reporting point,
Network simulation is determining unit as a result, be used for each MR reporting point of determining according to described down link propagation loss determining unit each MR reporting point of determining of down link propagation loss corresponding to the residential quarter at place and the described base station information determining unit base station information corresponding to residential quarter at place respectively respectively when planning network, determine described each MR reporting point corresponding received power respectively when planning network.
above-mentioned at least one technical scheme that provides by the embodiment of the present invention, received power that can be corresponding according to each MR reporting point difference in the MR data of current network and each MR reporting point be the base station information corresponding to residential quarter at place respectively, determine each the MR reporting point down link propagation loss corresponding to residential quarter at place respectively in current network, and further according to the down link propagation loss corresponding to residential quarter at place respectively of each MR reporting point in current network, and the current network of determining and the link propagation loss difference between planning network, determine the down link propagation loss corresponding to residential quarter at place respectively when planning network of each MR reporting point, and then according to each MR reporting point down link propagation loss corresponding to the residential quarter at place and each the MR reporting point base station information corresponding to residential quarter at place respectively respectively when the planning network, determine received power corresponding to each MR reporting point difference when planning network as the network simulation result.According to this technical scheme, determine when network simulation as a result the MR data according to current network, because the MR data are measurement results to the real network situation, can reflect the real network environment, thereby compared with prior art, the accuracy of network simulation result be can improve, thereby networking and optimization instructed better.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of writing, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide a further understanding of the present invention, and consists of the part of specification, is used from explanation the present invention with the embodiment of the present invention one, is not construed as limiting the invention.In the accompanying drawings:
The schematic flow sheet that Fig. 1 predicts for the network coverage that background technology provides;
The schematic flow sheet of the capacity predict that Fig. 2 provides for background technology;
A schematic flow sheet of definite network simulation result that Fig. 3 provides for the embodiment of the present invention one;
The schematic diagram of the link load computation model that Fig. 4 provides for the embodiment of the present invention one;
Fig. 5 provides the schematic flow sheet of the link propagation loss difference between settled front network and planning network really for the embodiment of the present invention one;
A schematic flow sheet of the simulation result of desired value is provided for determining of providing of the embodiment of the present invention one Fig. 6;
Fig. 7 is the schematic flow sheet of received power corresponding to the adjacent cell of determining MR reporting point residential quarter at place when the planning network that the embodiment of the present invention one provides;
The schematic flow sheet of determining the SINR that MR reporting point residential quarter at place when the planning network is corresponding that Fig. 8 provides for the embodiment of the present invention one;
Another schematic flow sheet of the simulation result of desired value is provided for determining of providing of the embodiment of the present invention one Fig. 9;
The schematic flow sheet of definite network capacity that Figure 10 provides for the embodiment of the present invention one;
Another schematic flow sheet of the simulation result of desired value is provided for determining of providing of the embodiment of the present invention one Figure 11;
The structural representation of the network simulation device that Figure 12 provides for the embodiment of the present invention two.
Embodiment
In order to provide the implementation of the accuracy that improves the network simulation result, the embodiment of the present invention provides a kind of network simulation method and device, below in conjunction with Figure of description, the preferred embodiments of the present invention are described, be to be understood that, preferred embodiment described herein only is used for description and interpretation the present invention, is not intended to limit the present invention.And in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.
Embodiment one
The embodiment of the present invention one provides a kind of network simulation method, the method can be applied in network planning process, especially can be applied to the network simulation procedure of the network planning, in practical application, this network simulation method goes for foundation and the optimization of diverse network, for example, to GPRS (General Packet Radio Service, general packet radio service) optimization of network, the foundation of TD-LTE (TD-SCDMA Long Term Evolution, the Long Term Evolution of TD-SCDMA) network etc.
In the present embodiment one, network simulation mainly depends on MR (Measure Result, measurement result) data, because the MR data are measurement results to the real network situation, can reflect the real network environment, therefore, improved the accuracy of the network simulation result of determining by the method, thereby better the network planning has been instructed.
In the present embodiment one, the parameter that the network simulation result of determining mainly comprises for the parameter of the coverage condition that characterizes planning network and is used for characterizing the capacity of planning network; Wherein, the parameter that be used for to characterize the coverage condition of planning network can be each MR reporting point corresponding received power respectively when the planning network, preferably, the parameter that should be used for the coverage condition of sign planning network can further include the SINR (Signal to Interference plus Noise Ratio, Signal to Interference plus Noise Ratio) corresponding to residential quarter at each MR reporting point difference place when planning network; The parameter that is used for the capacity of sign planning network can be specially the total data rate of planning network, i.e. throughput.
In the present embodiment one, need to obtain the MR data, these MR data can be obtained from the MR functional module of base station network management system, particularly, mainly comprise following content in the MR data of obtaining:
1, common down channel received field strength information corresponding to each MR reporting point in current network (being existing network), wherein, the common down channel received field strength information that the MR reporting point is corresponding is received power corresponding to MR reporting point;
2, each adjacent cell of the residential quarter at each MR reporting point of current network place corresponding common down channel received field strength information respectively, i.e. each adjacent cell of the residential quarter at MR reporting point place corresponding received power respectively;
The MR data report frequency of 3, the MR data report frequency of residential quarter, MR reporting point place, and the adjacent cell of residential quarter, MR reporting point place.
In above-mentioned MR data, received power corresponding to MR reporting point in current network is mainly used in determining MR reporting point received power corresponding to difference when planning network; Each adjacent cell of the residential quarter at MR reporting point place is the received power of correspondence respectively, is mainly used in determining the SINR corresponding to residential quarter at MR reporting point difference place when planning network; The MR data report frequency of the adjacent cell of the MR data report frequency of residential quarter, MR reporting point place and residential quarter, MR reporting point place is mainly used in determining the capacity of planning network.
In the present embodiment one, after getting the MR data, the network simulation of determining is as a result the time, and also needing further namely needs to obtain base station information take base station information as foundation, and this base station information mainly comprises following content:
1, the information such as latitude and longitude of base station, aerial information (directional diagram, deflection, angle of declination), feeder loss;
2, base station down common signal channel tranmitting frequency (being the tranmitting frequency of base station) information;
3, the transmitting power of base station down common signal channel (being the transmitting power of base station) information.
In above-mentioned base station information, transmitting power (being the transmitting power of the base station) information of the information such as latitude and longitude of base station, aerial information (directional diagram, deflection, angle of declination), feeder loss and base station down common signal channel, be mainly used in determining the down link propagation loss corresponding to residential quarter at MR reporting point place in current network, and definite MR reporting point received power corresponding to difference when planning network.
Fig. 3 shows the schematic flow sheet of definite network simulation result that the present embodiment one provides, and as shown in Figure 3, the process that this determines the network simulation result mainly comprises the steps:
Step 301, determine in the MR data each MR reporting point corresponding received power respectively from the MR data of obtaining, and determine each MR reporting point base station information corresponding to residential quarter at place respectively from the base station information that obtains.
Step 304, according to each MR reporting point down link propagation loss corresponding to the residential quarter at place and each the MR reporting point base station information corresponding to residential quarter at place respectively respectively when the planning network, determine each MR reporting point corresponding received power respectively when planning network.
So far, the flow process of determining the network simulation result finishes.By flow process corresponding to Fig. 3, the network simulation result of determining is the parameter for the coverage condition that characterizes planning network.
in the present embodiment one, further provided the preferred implementation of the step 302 that the corresponding flow process of Fig. 3 comprises, in this step 302, need to determine in current network the down link propagation loss corresponding to residential quarter at each MR reporting point place, wherein, the base station information corresponding to residential quarter at the received power corresponding according to the MR reporting point and place, determine in current network the down link propagation loss corresponding to residential quarter at this MR reporting point place, can be based on link load computation model shown in Figure 4, in this model, P_Tx is the transmitting power of base station, Ga_BS is the antenna gain of base station, Ga_UE is the antenna gain of travelling carriage, Lf_BS is the feeder loss of base station, PL_DL is the down link propagation loss corresponding to residential quarter at MR reporting point place, this down link propagation loss comprises the spatial loss, building penetration loss, shadow fading, human body loss etc.Based on link load computation model shown in Figure 4, can determine, definite formula of the received power P_Rx that in current network, the MR reporting point is corresponding is as follows:
P_Rx=P_Tx+Ga_BS-Lf_BS-PL_DL+Ga_UE formula (1)
Wherein:
According to above-mentioned formula (1), can determine that definite formula of the down link propagation loss PL_DL1 that the residential quarter at MR reporting point place in current network is corresponding is as follows:
PL_DL1=P_Tx+Ga_BS-Lf_BS-P_Rx+Ga_UE formula (2)
Wherein, P_Rx is received power corresponding to this MR reporting point, identical in the implication of P_Tx, Ga_BS, Lf_BS and Ga_UE and formula (1).
According to formula (2) as seen, when determining down link propagation loss PL_DL1 corresponding to the residential quarter at MR reporting point place in current network, can first determine base station transmitting power P_Tx and antenna gain sum (Ga_BS+Ga_UE) that the base station information corresponding to residential quarter at this MR reporting point place comprises, then utilize obtain and, deduct the feeder loss Lf_BS that received power P_Rx corresponding to this MR reporting point and base station information comprise, thereby obtain in current network the down link propagation loss PL_DL1 corresponding to residential quarter at this MR reporting point place.
In the present embodiment one, further provided the preferred implementation of the step 303 that the corresponding flow process of Fig. 3 comprises, in this step 303, need to determine the down link propagation loss corresponding to residential quarter at place respectively when planning network of each MR reporting point, concrete deterministic process is as follows:
the down link propagation loss that the residential quarter at MR reporting point place when planning network is corresponding, determined by down link propagation loss and the link propagation loss difference between current network and planning network that the residential quarter at this MR reporting point place in current network is corresponding, therefore, determine the down link propagation loss corresponding to residential quarter at MR reporting point place when planning network, need to determine the link propagation loss difference between current network and planning network, this link propagation loss difference can be determined planning network and current network based on frequency by the method that contrast model is proofreaied and correct, distance, the covering power difference of atural object condition obtains.Fig. 5 shows the schematic flow sheet of determining the link propagation loss difference between current network and planning network, and as shown in Figure 5, this deterministic process mainly comprises the steps:
In this step 502, can choose the website that proofread and correct as mode 3-6 base station, the base station that selects should comprise atural object condition as much as possible.
In this step 503, measure the path loss of system between each frequency range under current network and prediction planning network, the system that need to arrange works under the same conditions.
So far, the flow process of determining the link propagation loss difference between current network and planning network finishes.
Actual the process of link propagation loss difference PL_DL_DIFF between above-mentioned definite current network and planning network can be carried out in this step 303 with in using, and also can pre-determine before this step of enforcement, to improve computational efficiency.
After the link propagation loss difference PL_DL_DIFF that determines between current network and planning network, can determine MR reporting point corresponding received power when the planning network by following formula:
Suppose that MR reporting point corresponding received power RSRP when planning network is P_Rx2, have:
P_Rx2=P_Tx+Ga_BS-Lf_BS-PL_DL2+Ga_UE formula (3)
Wherein, PL_DL2 is the down link propagation loss corresponding to residential quarter at MR reporting point place when planning network, and the computing formula of this PL_DL2 is as follows:
PL_DL2=PL_DL1+PL_DL_DIFF namely utilizes the down link propagation loss corresponding to residential quarter at this MR reporting point place to add link propagation loss difference between current network and planning network.
According to formula (3) as seen, determine that the MR reporting point is when planning network during corresponding received power P_Rx2, at first determine base station transmitting power P_Tx and antenna gain sum (Ga_BS+Ga_UE) that the base station information corresponding to residential quarter at this MR reporting point place comprises, then utilize obtain and, deduct the feeder loss Lf_BS that down link propagation loss PL_DL2 corresponding to the residential quarter at this MR reporting point place when planning network and base station information comprise, obtain this MR reporting point corresponding received power P_Rx2 when planning network.
In another preferred implementation that the present embodiment one provides, in order further to improve the accuracy of the simulation result of determining, can set in advance the network planning to receiving the desired value of power requirement, this desired value can arrange according to the requirement of the network planning, based on this setting, distinguish corresponding received power when above-mentioned steps 304 is determined each MR reporting point at planning network after, can further the desired value of determining result and setting be compared, to determine the simulation result that can satisfy network planning desired value.Fig. 6 shows the schematic flow sheet of the simulation result of determining to meet desired value, as shown in Figure 6, mainly comprises the steps:
Step 604, according to each MR reporting point down link propagation loss corresponding to the residential quarter at place and each the MR reporting point base station information corresponding to residential quarter at place respectively respectively when the planning network, determine each MR reporting point corresponding received power respectively when planning network.
Above-mentioned steps 601 is consistent to the concrete implementation of step 304 with above-mentioned steps 301 to the concrete implementation of step 604, repeats no more herein.
In this step 607, in the base station information of adjusting, parameter type and adjustment amount can set in advance, for example, can adjust one or more in each base station informations such as the transmitting power of base station down common signal channel or base station down common signal channel tranmitting frequency, generally, the parameter adjusted in base station information corresponding to the residential quarter at place respectively of each MR reporting point is identical.
So far, the flow process of determining to meet the simulation result of desired value finishes.
Above is each MR reporting point when the planning network respectively during corresponding received power for simulation result in the present embodiment one, determines that the process of this simulation result has been described in detail.In the present embodiment one, further other network simulation result, for example, can determine one or more in following parameter:
Determine the received power corresponding to each adjacent cell of each MR reporting point residential quarter at difference place when planning network;
Determine the SINR corresponding to residential quarter at each MR reporting point difference place when planning network;
Determine the capacity of planning network.
Particularly, definite process of each parameter is as follows:
One, determine the received power corresponding to each adjacent cell of each MR reporting point residential quarter at difference place when planning network
Respectively definite process of received power corresponding to each adjacent cell of the residential quarter at place is identical when planning network for each MR reporting point, below is elaborated for the process of received power corresponding to an adjacent cell determining MR reporting point residential quarter at place when the planning network.
Fig. 7 shows the schematic flow sheet of received power corresponding to the adjacent cell of determining MR reporting point residential quarter at place when planning network, and as shown in Figure 7, this deterministic process mainly comprises the steps:
The base station information corresponding to this adjacent cell of the residential quarter at step 704, the down link propagation loss corresponding according to this adjacent cell of this MR reporting point residential quarter at place when the planning network and this MR reporting point place determined the received power corresponding to this adjacent cell of the residential quarter at this MR reporting point place when planning network.
So far, the flow process of determining the received power that the adjacent cell of MR reporting point residential quarter at place when planning network is corresponding finishes.In above-mentioned flow process, step 701 is basic identical to the specific implementation principle of step 304 to specific implementation principle and the above-mentioned steps 301 of step 704, repeats no more herein.
Two, determine the SINR corresponding to residential quarter at each MR reporting point difference place when planning network
Received power corresponding to difference when determining each MR reporting point at planning network, and determine each MR reporting point when planning network respectively after received power corresponding to each adjacent cell of the residential quarter at place, can determine further that each MR reporting point distinguishes the SINR corresponding to residential quarter at place when planning network.Particularly, respectively definite process of Signal to Interference plus Noise Ratio SINR corresponding to the residential quarter at place is identical when planning network for each MR reporting point, below is elaborated for the process of determining the Signal to Interference plus Noise Ratio SINR that MR reporting point residential quarter at place when the planning network is corresponding.
Fig. 8 shows the schematic flow sheet of SINR corresponding to the residential quarter of determining MR reporting point place when planning network, and as shown in Figure 8, this deterministic process mainly comprises the steps:
So far, the flow process of determining the SINR that the residential quarter at MR reporting point place when planning network is corresponding finishes.
In above-mentioned steps 801, the RSSI that this MR reporting point is corresponding comprises that disturb the adjacent area, white noise, can determine by following formula:
Wherein:
I represents current MR reporting point;
α
iFor RSRP power and PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel) the power bias factor, be generally 1;
β
iBe the cell load factor;
γ is for disturbing excretion factor;
KTB is white noise.
In above-mentioned steps 802, SINR corresponding to the residential quarter at this MR reporting point place when planning network can determine by following formula:
SINR=RSRP/ (RSSI-RSRP) formula (5)
Wherein:
RSRP refers to this MR reporting point corresponding received power when planning network.
In another preferred implementation that the present embodiment one provides, in order further to improve the accuracy of the simulation result of determining, can set in advance the desired value that the network planning requires SINR, this desired value can arrange according to the requirement of the network planning, based on this setting, when the flow process corresponding by Fig. 8 determined each MR reporting point at planning network respectively after SINR corresponding to the residential quarter at place, can further the desired value of determining result and setting be compared, to determine the simulation result that can satisfy network planning desired value.Fig. 9 shows the schematic flow sheet of the simulation result of determining to meet desired value, as shown in Figure 9, mainly comprises the steps:
Above-mentioned steps 901 is consistent to the concrete implementation of step 802 with above-mentioned steps 801 to the concrete implementation of step 902, repeats no more herein.
In this step 903, the desired value of setting can be each MR reporting point statistical value of SINR corresponding to the residential quarter at place respectively when the planning network, specifically in setting principle and above-mentioned steps 605, setting network planning is basic identical to the principle of the desired value of reception power requirement, repeats no more herein.
In this step 905, in the base station information of adjusting, parameter type and adjustment amount can set in advance, for example, can adjust one or more in each base station informations such as the transmitting power of base station down common signal channel or base station down common signal channel tranmitting frequency, generally, the parameter adjusted in base station information corresponding to the residential quarter at place respectively of each MR reporting point is identical.
So far, the flow process of determining the SINR that the residential quarter at MR reporting point place when planning network is corresponding finishes.
Three, determine the capacity of planning network
Respectively after SINR corresponding to the residential quarter at place, can determine further that network capacity, Figure 10 show the schematic flow sheet of definite network capacity, as shown in figure 10, mainly comprise the steps: when determining that each MR reporting point is at planning network
Step 1001, according to each the MR reporting point SINR corresponding to residential quarter at place respectively when the planning network, and the corresponding relation of SINR and data rate is determined each SINR data rate of correspondence respectively.
Step 1002, determine the product of the user distribution rate of the residential quarter that data rate corresponding to each SINR is corresponding with this SINR.
In this step 1002, the MR data report frequency of the residential quarter that the user distribution rate of the residential quarter that SINR is corresponding is corresponding according to this SINR is determined, and the user distribution rate is directly proportional to the report frequency, and namely the MR data report frequency of residential quarter is larger, illustrates that the user of this residential quarter distribution is more.
So far, the flow process of determining network capacity finishes.
In the corresponding flow process of Figure 10, step 1002 and step 1003 can be determined by following formula:
Wherein:
N represents network capacity; I refers to i MR reporting point, and N is the quantity of MR reporting point;
R
iData rate corresponding to SINR corresponding to residential quarter that represents i MR reporting point place when planning network;
x
iThe user distribution rate that represents the residential quarter that SINR corresponding to the residential quarter at i MR reporting point place when planning network is corresponding.
In another preferred implementation that the present embodiment one provides, in order further to improve the accuracy of the simulation result of determining, can set in advance the network planning to the desired value of network capacity, this desired value can arrange according to the requirement of the network planning, based on this setting, after the flow process corresponding by Figure 10 determined network capacity, can further the desired value of determining result and setting be compared, to determine the simulation result that can satisfy network planning desired value.Figure 11 shows the schematic flow sheet of the simulation result of determining to meet desired value, as shown in figure 11, mainly comprises the steps:
Step 1102, determine the product of the user distribution rate of the residential quarter that data rate corresponding to each SINR is corresponding with this SINR.
Above-mentioned steps 1101 is consistent to the concrete implementation of step 1003 with above-mentioned steps 1001 to the concrete implementation of step 1103, repeats no more herein.
In this step 1104, the desired value of setting can specifically arrange according to the number of users that network will hold.
In this step 1106, in the base station information of adjusting, parameter type and adjustment amount can set in advance, for example, can adjust one or more in each base station informations such as the transmitting power of base station down common signal channel or base station down common signal channel tranmitting frequency, generally, the parameter adjusted in base station information corresponding to the residential quarter at place respectively of each MR reporting point is identical.
So far, the flow process of determining to meet the network capacity of network planning requirement finishes.
In the present embodiment one, if the network simulation result of determining does not meet the desired value that the network planning requires, need further base station information to be adjusted, correspondingly, in the situation that adjusted base station information, the base station information that obtains is base station information corresponding to residential quarter that each MR reporting point after the adjustment parameter is distinguished the place.
definite process when below comprising different parameters for the network simulation result respectively is illustrated, be to be understood that, in the present embodiment one, if each network simulation result is provided with the desired value of network planning requirement, can be after determining each network simulation result, first the desired value that this network simulation result is corresponding with it relatively, in the situation that meet its corresponding desired value, further determine follow-up network simulation result, in incongruent situation, can first adjust base station information, then redefine this network simulation result, until after the network simulation result of determining meets corresponding desired value, go again to determine follow-up network simulation result.for example, received power (parameter one) corresponding to difference when the network simulation result of determining comprises each MR reporting point at planning network, when the SINR (parameter two) that the residential quarter at each MR reporting point difference place when planning network is corresponding and the capacity (parameter three) of planning network, because definite parameter two need to be according to definite result of parameter one, and definite parameter three need to be according to definite result of parameter one and parameter two, therefore, can be when determining that each MR reporting point is at planning network respectively corresponding received power meet the network planning to the desired value that receives power requirement after, determine again the SINR corresponding to residential quarter at each MR reporting point difference place when planning network, and after the SINR corresponding to residential quarter at place meets the desired value of the network planning to the SINR requirement respectively when determining each MR reporting point at planning network, further determine again network capacity, until network capacity meets the desired value that planning network requires network capacity.By this mode, can be in the network simulation result when being a plurality of, improve the efficient of the network simulation result of the desired value of determining to meet network planning requirement.
Above-mentioned at least one technical scheme that provides by the embodiment of the present invention, determine when network simulation as a result the MR data according to current network, because the MR data are measurement results to the real network situation, can reflect the real network environment, thereby compared with prior art, the accuracy of network simulation result be can improve, thereby networking and optimization instructed better.
Further, the user distribution situation that network capacity of the present invention is determined based on the MR report frequency is determined, and prior art is to carry out random distribution according to type of ground objects etc., and with respect to the blindness of definite mode of prior art, user distribution prediction of the present invention is more accurate.
Embodiment two
Corresponding with the said method flow process, the embodiment of the present invention two provides a kind of network simulation device, can improve the accuracy of the network simulation result of determining by this device.
Figure 12 shows the structural representation of this network simulation device, and as shown in figure 12, this network simulation device mainly comprises:
MR data determining unit 1201, base station information determining unit 1202, down link propagation loss determining unit 1203 and network simulation be determining unit 1204 as a result;
Wherein:
MR data determining unit 1201 is for received power corresponding to each MR reporting point difference of the measurement result MR data of determining current network;
Base station information determining unit 1202 is used for determining each MR reporting point base station information corresponding to residential quarter at place respectively;
down link propagation loss determining unit 1203, each MR reporting point that the received power that each the MR reporting point difference that is used for determining according to MR data determining unit 1201 is corresponding and base station information determining unit 1202 are determined is the base station information corresponding to residential quarter at place respectively, determine each the MR reporting point down link propagation loss corresponding to residential quarter at place respectively in current network, and according to the down link propagation loss corresponding to residential quarter at place respectively of each MR reporting point in current network, and the current network of determining and the link propagation loss difference between planning network, determine the down link propagation loss corresponding to residential quarter at place respectively when planning network of each MR reporting point,
Network simulation is determining unit 1204 as a result, be used for each MR reporting point of determining according to down link propagation loss determining unit 1203 each MR reporting point of determining of down link propagation loss corresponding to the residential quarter at place and the base station information determining unit base station information corresponding to residential quarter at place respectively respectively when planning network, determine each MR reporting point corresponding received power respectively when planning network.
In the preferred implementation that the present embodiment two provides, the down link propagation loss determining unit 1203 that device shown in Figure 12 comprises specifically is used for:
Determine base station transmitting power and antenna gain sum that the base station information corresponding to residential quarter at this MR reporting point place comprises, and utilize obtain and, deduct the feeder loss that received power corresponding to this MR reporting point and base station information comprise, obtain in current network the down link propagation loss corresponding to residential quarter at this MR reporting point place.
In the preferred implementation that the present embodiment two provides, the network simulation that device shown in Figure 12 comprises is determining unit 1204 as a result, specifically is used for:
Determine base station transmitting power and antenna gain sum that the base station information corresponding to residential quarter at this MR reporting point place comprises, and the feeder loss of utilizing down link propagation loss corresponding to the residential quarter obtain and deduct this MR reporting point place when planning network and base station information to comprise, obtain this MR reporting point corresponding received power when planning network.
In the preferred implementation that the present embodiment two provides, the network simulation that device shown in Figure 12 comprises is determining unit 1204 as a result, also is used for:
Distinguish corresponding received power when determining each MR reporting point at planning network after, determine each MR reporting point when planning network respectively corresponding received power whether satisfy the network planning to receiving the desired value of power requirement, and in definite result when being no, adjust each MR reporting point the first setup parameter in base station information corresponding to the residential quarter at place respectively.
In the preferred implementation that the present embodiment two provides, the MR data determining unit 1201 that device shown in Figure 12 comprises also be used for to be determined corresponding received power and the base station information corresponding to adjacent cell of adjacent cell of the residential quarter at each MR reporting point place;
correspondingly, down link propagation loss determining unit 1203, also be used for corresponding received power and base station information corresponding to adjacent cell of adjacent cell according to the residential quarter at MR reporting point place, determine the down link propagation loss corresponding to adjacent cell of the residential quarter at MR reporting point place in current network, down link propagation loss corresponding to adjacent cell according to the residential quarter at MR reporting point place in current network, and the current network of determining and the link propagation loss difference between planning network, determine the down link propagation loss corresponding to adjacent cell of MR reporting point residential quarter at place when planning network,
Correspondingly, network simulation is determining unit 1204 as a result, base station information corresponding to adjacent cell that also is used for the residential quarter at the down link propagation loss corresponding according to the adjacent cell of MR reporting point residential quarter at place when the planning network and MR reporting point place determined the received power corresponding to adjacent cell of MR reporting point residential quarter at place when planning network.
In the preferred implementation that the present embodiment two provides, the network simulation that device shown in Figure 12 comprises is determining unit 1204 as a result, also is used for:
Determine each MR reporting point received power corresponding to difference when planning network, and determine that each MR reporting point is when planning network respectively after received power corresponding to each adjacent cell of the residential quarter at place, respectively according to the received power corresponding to each adjacent cell of each MR reporting point residential quarter at place when the planning network, determine the received signal strength indicator RSSI that each MR reporting point is corresponding, and according to each MR reporting point corresponding received power and the RSSI that answers when the planning network, determine the SINR corresponding to residential quarter at each MR reporting point place when planning network.
In the preferred implementation that the present embodiment two provides, the network simulation that device shown in Figure 12 comprises is determining unit 1204 as a result, also is used for:
Determine each MR reporting point when planning network respectively SINR corresponding to the residential quarter at place whether satisfy the desired value that the network planning requires SINR, and in definite result when being no, adjust each MR reporting point the second setup parameter in base station information corresponding to the residential quarter at place respectively.
In the preferred implementation that the present embodiment two provides, the network simulation that device shown in Figure 12 comprises is determining unit 1204 as a result, also is used for:
Determine that each MR reporting point is when planning network respectively after SINR corresponding to the residential quarter at place, according to each the MR reporting point SINR corresponding to residential quarter at place respectively when the planning network, and the corresponding relation of SINR and data rate, determine each SINR data rate of correspondence respectively; Determine the product of the user distribution rate of the residential quarter that data rate corresponding to each SINR is corresponding with this SINR, wherein, the MR data report frequency of the residential quarter that the user distribution rate of the residential quarter that SINR is corresponding is corresponding according to this SINR is determined, and the user distribution rate is directly proportional to the report frequency; The data rate that each SINR is corresponding and the product addition of user distribution rate obtain the capacity of planning network.
In the preferred implementation that the present embodiment two provides, the network simulation that device shown in Figure 12 comprises is determining unit 1204 as a result, also is used for:
After obtaining the capacity of planning network, determine whether the capacity of planning network satisfies the network planning to the desired value of capacity requirement, and in definite result when being no, adjust each MR reporting point the 3rd setup parameter in base station information corresponding to the residential quarter at place respectively.
In the preferred implementation that the present embodiment two provides, the base station information determining unit 1202 that device shown in Figure 12 comprises specifically is used for:
Determine network simulation as a result determining unit adjust each MR reporting point base station information corresponding to residential quarter at place respectively after parameter.
Should be appreciated that the only logical partitioning for carrying out according to the function of this terminal realization of unit that above network simulation device comprises, in practical application, can carry out stack or the fractionation of said units.And the function that the network simulation device that this embodiment provides is realized is corresponding one by one with the network simulation method flow process that above-described embodiment provides, the more detailed handling process that realizes for this device, be described in detail in said method embodiment, be not described in detail herein.
And the network simulation device in the present embodiment two also has the corresponding function module that can realize embodiment one scheme, repeats no more herein.
Although described the application's preferred embodiment, in a single day those skilled in the art get the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the application's scope.
Obviously, those skilled in the art can carry out various changes and modification and not break away 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 claim of the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (20)
1. a network simulation method, is characterized in that, comprising:
Determine corresponding received power and described each MR reporting point base station information corresponding to residential quarter at place respectively respectively of each MR reporting point in the measurement result MR data of current network;
According to base station information corresponding to residential quarter that each MR reporting point is distinguished corresponding received power and distinguished the place, determine each the MR reporting point down link propagation loss corresponding to residential quarter at place respectively in current network;
Distinguish corresponding down link propagation loss and the current network of determining and the link propagation loss difference between planning network in residential quarter at place according to each MR reporting point in current network, determine the down link propagation loss corresponding to residential quarter at place respectively when planning network of each MR reporting point;
According to described each MR reporting point down link propagation loss corresponding to the residential quarter at place and described each the MR reporting point base station information corresponding to residential quarter at place respectively respectively when the planning network, determine described each MR reporting point corresponding received power respectively when planning network.
2. the method for claim 1, is characterized in that, the base station information corresponding to residential quarter at the received power corresponding according to the MR reporting point and place determined in current network the down link propagation loss corresponding to residential quarter at this MR reporting point place, comprising:
Determine base station transmitting power and antenna gain sum that the base station information corresponding to residential quarter at this MR reporting point place comprises;
Utilization obtains described and, deduct the feeder loss that received power corresponding to this MR reporting point and described base station information comprise, obtain in current network the down link propagation loss corresponding to residential quarter at this MR reporting point place.
3. the method for claim 1, it is characterized in that, the base station information corresponding to residential quarter at the down link propagation loss corresponding according to MR reporting point residential quarter at place when the planning network and this MR reporting point place determined this MR reporting point corresponding received power when planning network, comprising:
Determine base station transmitting power and antenna gain sum that the base station information corresponding to residential quarter at this MR reporting point place comprises;
The feeder loss that the down link propagation loss that utilization is that obtain and residential quarter that deduct this MR reporting point place when planning network is corresponding and described base station information comprise obtains this MR reporting point corresponding received power when planning network.
4. the method for claim 1, is characterized in that, after determining received power corresponding to described each MR reporting point difference when planning network, also comprises:
Determine described each MR reporting point when planning network respectively corresponding received power whether satisfy the desired value that the network planning requires described received power;
In definite result when being no, adjust described each MR reporting point the first setup parameter in base station information corresponding to the residential quarter at place respectively.
5. the method for claim 1, is characterized in that, also comprises:
Determine the received power corresponding to each adjacent cell of described each MR reporting point residential quarter at difference place when planning network; Wherein, determine the received power corresponding to adjacent cell of MR reporting point residential quarter at place when planning network, comprising:
Determine corresponding received power and the base station information corresponding to this adjacent cell of adjacent cell of the residential quarter at this MR reporting point place;
According to corresponding received power and the base station information corresponding to this adjacent cell of adjacent cell of the residential quarter at this MR reporting point place, determine in current network the down link propagation loss corresponding to this adjacent cell of the residential quarter at this MR reporting point place;
Down link propagation loss and the current network determined and link propagation loss difference planning network between corresponding according to this adjacent cell of the residential quarter at this MR reporting point place in current network are determined the down link propagation loss corresponding to this adjacent cell of the residential quarter at this MR reporting point place when planning network;
The base station information corresponding to this adjacent cell of the residential quarter at the down link propagation loss corresponding according to this adjacent cell of this MR reporting point residential quarter at place when the planning network and this MR reporting point place determined the received power corresponding to this adjacent cell of the residential quarter at this MR reporting point place when planning network.
6. method as claimed in claim 5, it is characterized in that, determine described each MR reporting point corresponding received power respectively when planning network, and determine that described each MR reporting point respectively after received power corresponding to each adjacent cell of the residential quarter at place, also comprises when planning network:
Determine the Signal to Interference plus Noise Ratio SINR corresponding to residential quarter at described each MR reporting point difference place when planning network; Wherein, determine the SINR corresponding to residential quarter at MR reporting point place when planning network, comprising:
According to the received power corresponding to each adjacent cell of this MR reporting point residential quarter at place when the planning network, determine the received signal strength indicator RSSI that this MR reporting point is corresponding;
According to this MR reporting point corresponding received power and RSSI corresponding to this MR reporting point when the planning network, determine the SINR corresponding to residential quarter at this MR reporting point place when planning network.
7. method as claimed in claim 6, is characterized in that, determines that described each MR reporting point respectively after SINR corresponding to the residential quarter at place, also comprises when planning network:
Determine described each MR reporting point when planning network respectively SINR corresponding to the residential quarter at place whether satisfy the desired value that the network planning requires described SINR;
In definite result when being no, adjust described each MR reporting point the second setup parameter in base station information corresponding to the residential quarter at place respectively.
8. method as claimed in claim 6, is characterized in that, determines that described each MR reporting point respectively after SINR corresponding to the residential quarter at place, also comprises when planning network:
According to described each the MR reporting point SINR corresponding to residential quarter at place respectively when the planning network, and the corresponding relation of SINR and data rate, determine described each SINR data rate of correspondence respectively;
Determine the product of the user distribution rate of the residential quarter that data rate corresponding to each SINR is corresponding with this SINR, wherein, the MR data report frequency of the residential quarter that the user distribution rate of the residential quarter that SINR is corresponding is corresponding according to this SINR is determined, and described user distribution rate is directly proportional to the described report frequency;
The data rate that described each SINR is corresponding and the product addition of described user distribution rate obtain the capacity of described planning network.
9. method as claimed in claim 8, is characterized in that, after obtaining the capacity of described planning network, also comprises:
Whether the capacity of determining described planning network satisfies the network planning to the desired value of described capacity requirement;
In definite result when being no, adjust described each MR reporting point the 3rd setup parameter in base station information corresponding to the residential quarter at place respectively.
10. as claim 4,7 or 9 described methods, it is characterized in that, determine described each MR reporting point base station information corresponding to residential quarter at place respectively, comprising:
Described each MR reporting point after definite adjustment parameter is the base station information corresponding to residential quarter at place respectively.
11. a network simulation device is characterized in that, comprising:
MR data determining unit is for received power corresponding to each MR reporting point difference of the measurement result MR data of determining current network;
The base station information determining unit is used for determining described each MR reporting point base station information corresponding to residential quarter at place respectively;
down link propagation loss determining unit, each MR reporting point that the received power that each the MR reporting point difference that is used for determining according to described MR data determining unit is corresponding and described base station information determining unit are determined is the base station information corresponding to residential quarter at place respectively, determine each the MR reporting point down link propagation loss corresponding to residential quarter at place respectively in current network, and according to the down link propagation loss corresponding to residential quarter at place respectively of each MR reporting point in current network, and the current network of determining and the link propagation loss difference between planning network, determine the down link propagation loss corresponding to residential quarter at place respectively when planning network of each MR reporting point,
Network simulation is determining unit as a result, be used for each MR reporting point of determining according to described down link propagation loss determining unit each MR reporting point of determining of down link propagation loss corresponding to the residential quarter at place and the described base station information determining unit base station information corresponding to residential quarter at place respectively respectively when planning network, determine described each MR reporting point corresponding received power respectively when planning network.
12. device as claimed in claim 11 is characterized in that, described down link propagation loss determining unit specifically is used for:
Determine base station transmitting power and antenna gain sum that the base station information corresponding to residential quarter at this MR reporting point place comprises, and utilize obtain described and, deduct the feeder loss that received power corresponding to this MR reporting point and described base station information comprise, obtain in current network the down link propagation loss corresponding to residential quarter at this MR reporting point place.
13. device as claimed in claim 11 is characterized in that, described network simulation is determining unit as a result, specifically is used for:
Determine base station transmitting power and antenna gain sum that the base station information corresponding to residential quarter at this MR reporting point place comprises, and the feeder loss of utilizing down link propagation loss corresponding to the residential quarter obtain and deduct this MR reporting point place when planning network and described base station information to comprise, obtain this MR reporting point corresponding received power when planning network.
14. device as claimed in claim 11 is characterized in that, described network simulation is determining unit as a result, also is used for:
Distinguish corresponding received power when determining described each MR reporting point at planning network after, determine described each MR reporting point when planning network respectively corresponding received power whether satisfy the desired value that the network planning requires described received power, and in definite result when being no, adjust described each MR reporting point the first setup parameter in base station information corresponding to the residential quarter at place respectively.
15. device as claimed in claim 11 is characterized in that, described MR data determining unit also be used for to be determined corresponding received power and the base station information corresponding to adjacent cell of adjacent cell of the residential quarter at each MR reporting point place;
described down link propagation loss determining unit, also be used for corresponding received power and base station information corresponding to adjacent cell of adjacent cell according to the residential quarter at MR reporting point place, determine the down link propagation loss corresponding to adjacent cell of the residential quarter at MR reporting point place in current network, down link propagation loss corresponding to adjacent cell according to the residential quarter at MR reporting point place in current network, and the current network of determining and the link propagation loss difference between planning network, determine the down link propagation loss corresponding to adjacent cell of MR reporting point residential quarter at place when planning network,
Network simulation is determining unit as a result, base station information corresponding to adjacent cell that also is used for the residential quarter at the down link propagation loss corresponding according to the adjacent cell of MR reporting point residential quarter at place when the planning network and MR reporting point place determined the received power corresponding to adjacent cell of MR reporting point residential quarter at place when planning network.
16. device as claimed in claim 15 is characterized in that, described network simulation is determining unit as a result, also is used for:
determine described each MR reporting point received power corresponding to difference when planning network, and determine that described each MR reporting point is when planning network respectively after received power corresponding to each adjacent cell of the residential quarter at place, respectively according to the received power corresponding to each adjacent cell of each MR reporting point residential quarter at place when the planning network, determine the received signal strength indicator RSSI that each MR reporting point is corresponding, and according to each MR reporting point corresponding received power and the RSSI that answers when the planning network, determine the SINR corresponding to residential quarter at each MR reporting point place when planning network.
17. device as claimed in claim 16 is characterized in that, described network simulation is determining unit as a result, also is used for:
Determine described each MR reporting point when planning network respectively SINR corresponding to the residential quarter at place whether satisfy the desired value that the network planning requires described SINR, and in definite result when being no, adjust described each MR reporting point the second setup parameter in base station information corresponding to the residential quarter at place respectively.
18. device as claimed in claim 16 is characterized in that, described network simulation is determining unit as a result, also is used for:
Determine that described each MR reporting point is when planning network respectively after SINR corresponding to the residential quarter at place, according to described each the MR reporting point SINR corresponding to residential quarter at place respectively when the planning network, and the corresponding relation of SINR and data rate, determine described each SINR data rate of correspondence respectively; Determine the product of the user distribution rate of the residential quarter that data rate corresponding to each SINR is corresponding with this SINR, wherein, the MR data report frequency of the residential quarter that the user distribution rate of the residential quarter that SINR is corresponding is corresponding according to this SINR is determined, and described user distribution rate is directly proportional to the described report frequency; The data rate that described each SINR is corresponding and the product addition of described user distribution rate obtain the capacity of described planning network.
19. device as claimed in claim 18 is characterized in that, described network simulation is determining unit as a result, also is used for:
After obtaining the capacity of described planning network, whether the capacity of determining described planning network satisfies the network planning to the desired value of described capacity requirement, and in definite result when being no, adjust described each MR reporting point the 3rd setup parameter in base station information corresponding to the residential quarter at place respectively.
20. as claim 14,17 or 19 described devices, it is characterized in that, described base station information determining unit specifically is used for:
Determine described network simulation as a result determining unit adjust described each MR reporting point base station information corresponding to residential quarter at place respectively after parameter.
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