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Capacity simulation system and method for mobile communication system
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A technology of mobile communication system and simulation system, which is applied in the field of capacity simulation system, can solve the problems of slow running speed, low estimation accuracy, and difficult to meet, and achieve the effects of reducing randomness, accurate calculation results, and improving accuracy
Active Publication Date: 2017-06-06
SHANGHAI HUAWEI TECH CO LTD
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Since the capacity estimation method is based on the above assumptions, which are inconsistent with the actual situation in the live network, the estimation accuracy is low
[0004] The Monte Carlo simulation method obtains the total load of the cell through TTI (Transmission Time Interval, transmission time interval) level calculation, random distribution of users, and multiple snapshots. Among them, the location of users is relatively random, and multiple snapshots are required to traverse The coverage area of the cell can get a more accurate load, and its running speed is slow, which is difficult to meet the accurate and fast calculation requirements of the SON (Self organization network, self-organizing network) algorithm for the capacity prediction method
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Embodiment 1
[0030] The present invention also provides a capacity simulation system of a mobile communication system, such as figure 1 As shown, the system can include:
[0031] A grid division unit 100, configured to divide the simulation area into at least two grids according to a predetermined division method;
[0032] A grid attribute refreshing unit 200, configured to refresh the grid attributes of the above-mentioned at least two grids;
[0033] In this embodiment, the grid attributes may include the serving cell of the grid, the signal strength and signal quality of the serving cell, the traffic demand of the grid, the coupling loss from the serving cell to the grid, and the size of the received interference signal;
[0034] The first calculation unit 300 is configured to calculate the downlink load of each cell in each grid according to the grid attributes of the at least two grids;
[0035] The second calculation unit 400 is used to traverse the grid covered by each cell to cal...
Embodiment 2
[0066] An embodiment of the present invention provides a capacity simulation method for a mobile communication system, such as figure 2 As shown, the method may include:
[0067] 101. Divide the simulation area into at least two grids according to a predetermined division method;
[0068] Preferably, the simulation area can be divided into at least two fixed-size grids according to a predetermined grid size, wherein the predetermined grid size can be set according to the accuracy of the traffic map, and its specific value will not be specified here limited;
[0069] Of course, the size of the grid may not be fixed, and those skilled in the art can make appropriate settings according to needs, and no specific limitation is made here;
[0070] 102. Refresh the grid attributes of the above at least two grids;
[0071] In this embodiment, the above-mentioned grid attributes may include: the serving cell of the grid, the signal strength and signal quality of the serving cell, t...
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Abstract
The embodiment of the invention relates to the technical field of communication and discloses a capacity simulation system and method for a mobile communication system. The method includes the steps that a simulation area is divided into at least two grids according to a preset dividing mode; grid attributes of at least two girds are refreshed; downlink loads of each cell in each grid are calculated according to the grid attribute of each grid; the grids covered by the cells are traversed and downlink total loads of each cell are calculated; whether the downlink total loads of the cells meet preset convergence conditions is judged, if yes, the calculated downlink total loads of the cells are confirmed as the final downlink total loads of the cells, and if not, the step of refreshing the grid attributes of at least two grids is executed again. According to the embodiment of the invention, the accuracy of the capacity simulation method can be improved, and running speed of the capacity simulation system can be increased.
Description
technical field [0001] The invention relates to the technical field of communication, in particular to a capacity simulation system and method of a mobile communication system. Background technique [0002] The capacity prediction methods in the prior art mainly include methods such as capacity estimation and Monte Carlo simulation. [0003] Among them, the capacity estimation method is based on the following two assumptions: 1. User location: Assume that users are located in one location (the average coupling loss of the cell is taken as the coupling loss of this location); 2. Adjacent cell interference: Assume that the adjacent cell interference of all users is constant , that is, the neighbor cell interference Ioc=the total received power of the current cell*the neighbor cell interference factor. Because the capacity estimation method is based on the above-mentioned assumptions, but the above-mentioned assumptions are inconsistent with the actual situation in the live ne...
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