CN105407492A - Method and apparatus for network planning - Google Patents
Method and apparatus for network planning Download PDFInfo
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- CN105407492A CN105407492A CN201410468693.7A CN201410468693A CN105407492A CN 105407492 A CN105407492 A CN 105407492A CN 201410468693 A CN201410468693 A CN 201410468693A CN 105407492 A CN105407492 A CN 105407492A
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Abstract
The application discloses a method of network planning. The method includes a step A of dividing each cell into a plurality of sections according to different environments in the cells, distinguishing the sections with angles and/or distances, and obtaining angle parameters and distance parameters of all the sections; a step B of inputting the angle parameters and the distance parameters corresponding to the sections in each cell into a cell parameter table; a step C of configuring the sections distinguished by the angle parameters and the distance parameters in the cell parameter table with corresponding propagation models respectively, and calculating the link loss of each section based on the selected propagation model; and a step D of calculating the signal intensity, signal quality and other coverage prediction indexes of each channel based on the link loss of each section, and outputting prediction results. The application further discloses an apparatus for network planning. The application scheme can improve the accuracy of network planning and design.
Description
Technical field
The application relates to wireless communication technology field, particularly relates to a kind of method and device of the network planning.
Background technology
In a wireless communication system, selecting suitable propagation model to be the network planning is key link, directly has influence on the precision of the network planning.
Propagation model, or title field-strength prediction model, for predicting the intermediate value field intensity of Received signal strength, its object is according to local environmental features such as topography and geomorphology, depth of building and density, street distributions, and the system parameters relevant with radio propagation (as signal frequency, base station antenna height etc.), adopt certain mathematical formulae and algorithm, calculate the loss of transmitting-receiving point-to-point transmission in service area.
The scope that different propagation models is suitable for is different, what have is applicable to urban area circumstance, what have is applicable to suburban environment, each propagation model is just suitable in the scope of certain frequency range, distance and antenna height, exceeding this scope will the precision of impact prediction, therefore for the propagation model that specific environmental selection is suitable just seems extremely important, and need to correct propagation model according to actual conditions.
In existing npt, the scheme that wireless network planning design is finally determined depends on the effect of emulation coverage prediction to a great extent, and the effect of coverage prediction is limited by the propagation model that each community is selected, as can be seen here, select accuracy and the scope of application of propagation model, overall planning and designing quality can be had influence on.
A kind of propagation model is selected to carry out channel coverage prediction in units of the mode Shi Yi community of legacy network planning.But, in a practical situation, geographical environment in each cell coverage area may more complicated, the environment in certain direction is dense city, and another direction is general city or suburban environment, especially for the community that some wide area covers, distance base station 2 ~ 3km building is more, time distant, environment is relatively good, comparatively spacious.For these environment, if be that granularity adopts single propagation model to carry out coverage prediction or community only adopts the propagation model for certain environment to carry out the network planning with community, the impact that in a community, different environment brings cannot be considered, thus reduce the precision of Network Programe Design, and add the cost of later stage optimization.
Summary of the invention
This application provides a kind of method and device of the network planning, the precision of Network Programe Design can be promoted.
The embodiment of the present application provides a kind of method of the network planning, comprising:
A, each community is divided into multiple interval according to the environment that Intra-cell is different, and distinguishes by angle and/or distance that each is interval, obtain angle parameter and the distance parameter in each interval;
B, by each interval corresponding angle parameter of each community and distance parameter input cell parameter table;
C, the interval distinguished for angle parameter each in cell parameter table and distance parameter, configure corresponding propagation model respectively, calculate the link load in each interval according to selected propagation model;
D, calculate the signal strength signal intensity of various channel according to the link load in interval, the coverage prediction indexs such as signal quality, prediction of output result.
Preferably, before steps A, comprise further: select N number of candidate site as the typical cell of propagation model revision, use typical cell to carry out propagation model revision, obtain the propagation model after the correction of varying environment.
Preferably, the angle parameter in described interval is: angle lower limit and the angle upper limit.
Preferably, the distance parameter in described interval is: the distance upper limit and distance lower limit.
The embodiment of the present application provides a kind of device of the network planning, comprising:
Interval division module, for each community is divided into multiple interval according to the environment that Intra-cell is different, and distinguishes each interval by angle and/or distance, obtains angle parameter and the distance parameter in each interval;
Cell parameter module, for safeguarding cell parameter table, described cell parameter table is for recording each interval corresponding angle parameter and distance parameter of each community;
Link load computing module, for the interval distinguished for angle parameter each in cell parameter table and distance parameter, configures corresponding propagation model respectively, calculates the link load in each interval according to selected propagation model;
Coverage prediction module, for calculating the signal strength signal intensity of various channel, the coverage prediction indexs such as signal quality, prediction of output result according to the link load in interval.
Preferably, this device comprises further:
Propagation model revision module, for selecting N number of candidate site as the typical cell of propagation model revision, using typical cell to carry out propagation model revision, obtaining the propagation model after the correction of varying environment.
Preferably, the angle parameter in described interval is: angle lower limit and the angle upper limit.
Preferably, the distance parameter in described interval is: the distance upper limit and distance lower limit.
As can be seen from the above technical solutions, for the community of circumstance complication, different intervals is divided into according to communication environments, with divided interval for granularity, application propagation model carries out coverage prediction, thus more accurately can estimate the impact that environment different in community brings, thus improve the precision of Network Programe Design.
Accompanying drawing explanation
The method flow schematic diagram of the network planning of the wireless communication system that Fig. 1 provides for the embodiment of the present application.
Embodiment
The network plan method that the application proposes, its fundamental design idea is: for the community of circumstance complication, is divided into different intervals according to communication environments, and distinguishes these intervals with angle and/or distance; When carrying out the network planning, the community of circumstance complication is with divided interval for granularity, and application propagation model carries out coverage prediction.
For making the know-why of technical scheme, feature and technique effect clearly, below in conjunction with specific embodiment, technical scheme is described in detail.
The embodiment provides a kind of method of the network planning of wireless communication system, its flow process as shown in Figure 1, comprises the steps:
Step 101: select N (N>=2) individual candidate site as the typical cell of propagation model revision, uses typical cell to carry out propagation model revision, obtains the propagation model after the correction of varying environment;
Step 102: each community is divided into multiple interval according to the environment that Intra-cell is different, and distinguish each interval by angle and/or distance.Such as, be divided into example with angular area, multiple sector region can be divided into, be 0 degree with north orientation, the north orientation (-60 degree, 60 degree) of site one is general urban area circumstance, south orientation (120 degree, 240 degree) is dense city environment, and all the other directions are suburban environment.If distance is distinguished, can different according to from site distance, divide multiple annular region.If community environment more complicated, can combine angle with distance, realize more careful demarcation interval.
After division, each interval corresponding following parameter: the angle upper limit, angle lower limit, the distance upper limit, distance lower limit; If only distinguished with angle, then the distance upper limit is this coverage radius of cell, and distance lower limit is 0; If only distinguished with distance, then the angle upper limit is 0, and angle lower limit is 360.
Step 103: by each interval corresponding angle parameter of each community and distance parameter input cell parameter table.
Step 104: the interval distinguished for angle parameter each in cell parameter table and distance parameter, configures corresponding propagation model respectively, calculate the link load in each interval according to selected propagation model.
Step 105: the signal strength signal intensity calculating various channel according to link load, the coverage prediction indexs such as signal quality, prediction of output result.
The embodiment of the present application provides a kind of device of the network planning, comprising:
Interval division module, for each community is divided into multiple interval according to the environment that Intra-cell is different, and distinguishes each interval by angle and/or distance, obtains angle parameter and the distance parameter in each interval;
Cell parameter module, for safeguarding cell parameter table, described cell parameter table is for recording each interval corresponding angle parameter and distance parameter of each community;
Link load computing module, for the interval distinguished for angle parameter each in cell parameter table and distance parameter, configures corresponding propagation model respectively, calculates the link load in each interval according to selected propagation model;
Coverage prediction module, for calculating the signal strength signal intensity of various channel, the coverage prediction indexs such as signal quality, prediction of output result according to the link load in interval.
Preferably, this device comprises further:
Propagation model revision module, for selecting N number of candidate site as the typical cell of propagation model revision, using typical cell to carry out propagation model revision, obtaining the propagation model after the correction of varying environment.
Preferably, the angle parameter in described interval is: angle lower limit and the angle upper limit.
Preferably, the distance parameter in described interval is: the distance upper limit and distance lower limit.
Technical scheme can reach following technique effect: propagation models different according to different environmental selections in community, makes the matching degree of environment and propagation model higher; In community, distinguish communication environments carry out channel coverage prediction, coverage prediction result in cell coverage area can be made more reasonable; For there being the community of varying environment to use different propagation models to carry out the network planning, the precision of the network planning can be improved, reducing the cost of later stage optimization.
The foregoing is only the preferred embodiment of the application; not in order to limit the protection range of the application; within all spirit in technical scheme and principle, any amendment made, equivalent replacements, improvement etc., all should be included within scope that the application protects.
Claims (8)
1. a method for the network planning, is characterized in that, comprising:
A, each community is divided into multiple interval according to the environment that Intra-cell is different, and distinguishes by angle and/or distance that each is interval, obtain angle parameter and the distance parameter in each interval;
B, by each interval corresponding angle parameter of each community and distance parameter input cell parameter table;
C, the interval distinguished for angle parameter each in cell parameter table and distance parameter, configure corresponding propagation model respectively, calculate the link load in each interval according to selected propagation model;
D, calculate the signal strength signal intensity of various channel according to the link load in interval, the coverage prediction indexs such as signal quality, prediction of output result.
2. method according to claim 1, it is characterized in that, before steps A, comprise further: select N number of candidate site as the typical cell of propagation model revision, use typical cell to carry out propagation model revision, obtain the propagation model after the correction of varying environment.
3. method according to claim 1, is characterized in that, the angle parameter in described interval is: angle lower limit and the angle upper limit.
4. method according to claim 1, is characterized in that, the distance parameter in described interval is: the distance upper limit and distance lower limit.
5. a device for the network planning, is characterized in that, comprising:
Interval division module, for each community is divided into multiple interval according to the environment that Intra-cell is different, and distinguishes each interval by angle and/or distance, obtains angle parameter and the distance parameter in each interval;
Cell parameter module, for safeguarding cell parameter table, described cell parameter table is for recording each interval corresponding angle parameter and distance parameter of each community;
Link load computing module, for the interval distinguished for angle parameter each in cell parameter table and distance parameter, configures corresponding propagation model respectively, calculates the link load in each interval according to selected propagation model;
Coverage prediction module, for calculating the signal strength signal intensity of various channel, the coverage prediction indexs such as signal quality, prediction of output result according to the link load in interval.
6. device according to claim 5, is characterized in that, this device comprises further:
Propagation model revision module, for selecting N number of candidate site as the typical cell of propagation model revision, using typical cell to carry out propagation model revision, obtaining the propagation model after the correction of varying environment.
7. device according to claim 5, is characterized in that, the angle parameter in described interval is: angle lower limit and the angle upper limit.
8. device according to claim 5, is characterized in that, the distance parameter in described interval is: the distance upper limit and distance lower limit.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105898773A (en) * | 2016-03-25 | 2016-08-24 | 京信通信系统（广州）有限公司 | Correction method and system of propagation model |
| CN107205237A (en) * | 2016-03-18 | 2017-09-26 | 中国移动通信集团贵州有限公司 | The optimization method and device of a kind of network structure |
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| CN101247613A (en) * | 2008-03-11 | 2008-08-20 | 中兴通讯股份有限公司 | Wireless signal propagation model test approach and system used for honeycomb network |
| CN102118761A (en) * | 2009-12-30 | 2011-07-06 | 中兴通讯股份有限公司 | Method and device for correcting propagation model |
| US20130281100A1 (en) * | 2010-12-30 | 2013-10-24 | Telecom Italia S.P.A. | Method for the prediction of coverage areas of a cellular network |
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| CN1529445A (en) * | 2003-09-27 | 2004-09-15 | 中兴通讯股份有限公司 | Method for correcting wireless transmission model in CDMA system |
| CN101247613A (en) * | 2008-03-11 | 2008-08-20 | 中兴通讯股份有限公司 | Wireless signal propagation model test approach and system used for honeycomb network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107205237A (en) * | 2016-03-18 | 2017-09-26 | 中国移动通信集团贵州有限公司 | The optimization method and device of a kind of network structure |
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| CN105898773A (en) * | 2016-03-25 | 2016-08-24 | 京信通信系统（广州）有限公司 | Correction method and system of propagation model |
| CN105898773B (en) * | 2016-03-25 | 2019-07-05 | 京信通信系统（中国）有限公司 | The bearing calibration and system of propagation model |
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