CN104349326A - Network planning method - Google Patents
Network planning method Download PDFInfo
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- CN104349326A CN104349326A CN201310335633.3A CN201310335633A CN104349326A CN 104349326 A CN104349326 A CN 104349326A CN 201310335633 A CN201310335633 A CN 201310335633A CN 104349326 A CN104349326 A CN 104349326A
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- interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/22—Traffic simulation tools or models
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The application discloses a network planning method. In the method, disparate system stations which generate interferences on a system are firstly determined and then during simulation, the disparate system stations are taken into consideration and regarded as stations of the system to carry out network planning simulation of the system so that a corresponding coverage prediction index which meets demands is obtained. The method is applied to a network planning scene which exists in a disparate system so that the reliability of network planning is ensured.
Description
Technical field
The present invention relates to mobile communication technology, particularly relate to a kind of network plan method.
Background technology
The modal networking mode of radio communication is the beehive net adopting similar honeycomb structure.The basic frequency multiplexing mode of communication system comprises identical networking and inter-frequency networking.Identical networking refers to that all communities of the whole network use identical frequency.Because the frequency of each community is the same, all adjacent areas of community are with configuration frequently, there will be more co-channel interference between community.Inter-frequency networking refers to that neighbor cell adopts different frequency configuration.Be limited to band resource, so there is the equilibrium problem that interference controls and frequency band uses.Therefore the network planning is needed to carry out the balance of guaranteed capacity and covering.
Traditional network planning flow process is as follows:
One, demand analysis
The network planning is based on the demand of user, and the demand of user comprises design capacity, coverage coverage rate, and network performance index.
Two, network size pre-planning
The basic scale of networking is mainly determined in network size estimation by the analysis of covering radius and volume calculation, to use according to the landform of overlay area, landforms, signal the propagation model that the Information Selection such as frequency range are suitable when carrying out covering estimation, then determined the coverage radius of cell of zones of different by link budget, thus estimate the base station number of satisfied covering demand.Overlay area capacity analysis is then according to network's coverage area user development potentiality, the power system capacity that system can carry, and calculates the capacity requirement that whether can meet user.
Three, site planning and exploration
Main according to the cellular topology of standard and the recommended value of link budget, in conjunction with current network site resource situation, carry out site layout work, and after determining the preliminary placement of website, carry out on-site land survey to carry out the usability analyses of website.Due to various factors restriction, actual available site is not necessarily completely the same with design site, geographical position, antenna height, and machine room condition and the engineering fact all can necessarily gaps.But be through site survey, substantially specify which place possesses the necessary condition as base station site.If adopt the mode of inter-frequency networking, frequency planning is also the key factor affecting site distribution.
Four, network plan simulation
After completing site planning and exploration, site programme is imported in network plan simulation software and carries out covering and capacity analysis, the flow process of simulation analysis comprises layout data importing, propagation forecast, faces section planning, frequency planning, user and business model configuration and Monte-Carlo Simulation, by analyzing simulation data result, assess current programme and whether can meet covering and capacity goals, do not meet will go as there is subregion, programme is adjusted, makes programme finally meet the object of planning.
Utilizing after Network planning software carries out detailed planning appraisal, just can export antenna and hang the detailed wireless parameter such as high, deflection, angle of declination, base-station transmitting-power, PCI planning, frequency planning.
The propagation model that network plan simulation adopts can be the statistical model of standard, also can adopt the model after correction.The work of model tuning can be carried out in the arbitrary steps before the 4th step.
At present, wireless environment medium frequency resource is very in short supply, and different frequency range from low to high has been assigned to various different system.Traditional network plan method is single system network plan method, is not suitable for the scene that there is different system.Reason is that when carrying out network plan simulation, co-frequency cell only considered the interference between the system of current use, does not consider the interference between different system.In some system (such as data radio station), for ensuring coverage, transmitting terminal can adopt larger transmitted power, so can produce larger interference to using the other system of similar frequency bands, this frequency range can be caused time serious to block, for using Lin Dao (nearby frequency bands) or also can producing larger interference every the system of road (every a frequency band), therefore, if do not consider different system interference, the confidence level of network plan simulation can reduce, and can have a greatly reduced quality to the directive function of network engineering construction and the network optimization.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of network plan method, and the method is applicable to the network planning scene that there is different system.
In order to achieve the above object, the technical scheme that the present invention proposes is:
A kind of network plan method, comprising:
A, in advance by the prospecting of site on the spot, determine the candidate stations of native system in planning region and the projecting parameter initial configuration of each candidate stations, determine in described planning region, whether to there is different system interference station native system being produced to interference;
B, when described planning region memory to native system produce interference different system interference station time, for each candidate stations be disturbed in native system, determine that interference signal intensity, the quantity this candidate stations being produced to the different system interference station of disturbing and projecting parameter that this candidate stations is subject to configure;
C, utilize not by different system interference to frequency carry out propagation model revision, obtain correct after propagation model;
D, using the website of described different system interference station as native system, propagation model after utilizing described correction, described in be disturbed the interference signal intensity of candidate stations, the projecting parameter configuration at described different system interference station and the current projecting parameter configuration of each candidate stations of native system, carry out the network plan simulation in the described planning region of native system, obtain the coverage prediction index of this emulation;
E, judge that whether this coverage prediction index emulated meets the requirement preset, if, the projecting parameter configuration that in then this being emulated, each candidate stations of native system is current is as current network planning result, otherwise, according to the coverage prediction index of backlog demand, the projecting parameter configuration current to each candidate stations of native system in this emulation adjusts accordingly, proceeds to the poly-d of step and re-starts network plan simulation.
In sum, the network plan method that the present invention proposes, considers the impact of different system interference website, thus can improve the matching degree of network plan simulation and actual working environment, make the result of network plan simulation more credible when network plan simulation.Therefore, the present invention is applied to the network planning scene that there is different system, can guarantee the reliability of the network planning.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the embodiment of the present invention one.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Core concept of the present invention is: determine different system website native system being produced to interference, and when emulating, these different system websites are taken into account, these different system websites are emulated together with candidate's website of native system, obtains corresponding satisfactory coverage prediction index.
Fig. 1 is the schematic flow sheet of the embodiment of the present invention one, and as shown in Figure 1, this embodiment mainly comprises:
Step 101, in advance by the prospecting of site on the spot, determine the candidate stations of native system in planning region and the projecting parameter initial configuration of each candidate stations, determine in described planning region, whether to there is different system interference station native system being produced to interference.
This step is for determining whether there is the different system interference had an impact to native system, can consider when there being different system interference that different system interference carries out the network planning in planning region.
Here, determine that native system can adopt existing techniques in realizing in the projecting parameter initial configuration of the candidate stations planned in region and each candidate stations, do not repeat them here.
Can by carrying out the mode of frequency sweep with sweep generator in this step, determine in planning region whether there is different system interference station native system being produced to interference, utilize sweep generator to carry out frequency sweep to the concrete grammar searching jamming station by those skilled in the art are grasped, do not repeat them here.
Step 102, when described planning region memory to native system produce interference different system interference station time, for each candidate stations be disturbed in native system, determine that interference signal intensity, the quantity this candidate stations being produced to the different system interference station of disturbing and projecting parameter that this candidate stations is subject to configure.
This step is used for when there is the different system interference station to native system generation interference, determine the relevant information at the different system interference station each candidate stations of native system being produced to interference, i.e. interference signal intensity, jamming station quantity and projecting parameter configuration etc., to utilize these information in the planning simulation of follow-up native system, carry out the network planning of native system, to make simulating scenes closer to real wireless communications environment, guarantee the reasonability of the network planning.
Preferably, described projecting parameter can comprise: the parameters such as high, antenna model and aerial angle hung by geographical position, transmitted power, antenna.Be not limited to above-mentioned parameter in actual applications, those skilled in the art can be arranged the content of projecting parameter according to actual needs.
Step 103, utilize not by different system interference to frequency carry out propagation model revision, obtain correct after propagation model.
This step is used for carrying out propagation model revision, to carry out the emulation of the network planning based on this model.Concrete bearing calibration can adopt existing techniques in realizing, does not repeat them here.
Step 104, using the website of described different system interference station as native system, propagation model after utilizing described correction, described in be disturbed the interference signal intensity of candidate stations, the projecting parameter configuration at described different system interference station and the current projecting parameter configuration of each candidate stations of native system, carry out the network plan simulation in the described planning region of native system, obtain the coverage prediction index of this emulation.
This step is for realizing the network plan simulation of native system, with existing network plan simulation difference be, in this emulation, the different system interference determined in abovementioned steps is regarded as the website of native system, can using the reference of interference signal intensity measured in step 102 as up fixing different system interference source during emulation, so can take into full account the impact of different system interference on native system candidate stations, thus validity that the projecting parameter of each candidate stations of native system is configured can be guaranteed, improve the accuracy of network plan simulation.Based on above-mentioned difference, the concrete same existing system of network plan simulation method, does not repeat them here.
Step 105-107, judge that whether this coverage prediction index emulated meets the requirement preset, if, the projecting parameter configuration that in then this being emulated, each candidate stations of native system is current is as current network planning result, otherwise, according to the coverage prediction index of backlog demand, the projecting parameter configuration current to each candidate stations of native system in this emulation adjusts accordingly, proceeds to step poly-104 and re-starts network plan simulation.
Whether the network planning result that step 105-107 is used for obtaining in determining step 104 meets set target, if do not met, adjusts corresponding parameter, then performs step 104 and re-start emulation, until meet the requirements.So, the network planning result meeting preset requirement can finally be obtained.
It should be noted that, above-mentioned steps 102-107 is applied to when the situation of planning region existence to the influential different system interference of native system, and when there is not the different system interference station to native system generation interference in described planning region, the network planning can be carried out according to existing single system network plan method.Concrete grammar is grasped by those skilled in the art, does not repeat them here.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a network plan method, is characterized in that, comprising:
A, in advance by the prospecting of site on the spot, determine the candidate stations of native system in planning region and the projecting parameter initial configuration of each candidate stations, determine in described planning region, whether to there is different system interference station native system being produced to interference;
B, when described planning region memory to native system produce interference different system interference station time, for each candidate stations be disturbed in native system, determine that interference signal intensity, the quantity this candidate stations being produced to the different system interference station of disturbing and projecting parameter that this candidate stations is subject to configure;
C, utilize not by different system interference to frequency carry out propagation model revision, obtain correct after propagation model;
D, using the website of described different system interference station as native system, propagation model after utilizing described correction, described in be disturbed the interference signal intensity of candidate stations, the projecting parameter configuration at described different system interference station and the current projecting parameter configuration of each candidate stations of native system, carry out the network plan simulation in the described planning region of native system, obtain the coverage prediction index of this emulation;
E, judge that whether this coverage prediction index emulated meets the requirement preset, if, the projecting parameter configuration that in then this being emulated, each candidate stations of native system is current is as current network planning result, otherwise, according to the coverage prediction index of backlog demand, the projecting parameter configuration current to each candidate stations of native system in this emulation adjusts accordingly, proceeds to the poly-d of step and re-starts network plan simulation.
2. method according to claim 1, is characterized in that, described method comprises further: when there is not the different system interference station to native system generation interference in described planning region, carry out the network planning according to single system network plan method.
3. method according to claim 1, is characterized in that, described projecting parameter comprises: geographical position, transmitted power, antenna hang high, antenna model and aerial angle.
4. method according to claim 1, is characterized in that, utilizes sweep generator to carry out frequency sweep in step a, determines in described planning region the different system interference station whether existing and native system is produced to interference.
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Cited By (5)
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CN105744536A (en) * | 2014-12-09 | 2016-07-06 | 富士通株式会社 | Wireless network deployment method and device |
CN106332130A (en) * | 2015-07-02 | 2017-01-11 | 中国移动通信集团设计院有限公司 | Base station survey method, apparatus and system |
CN108572379A (en) * | 2018-04-27 | 2018-09-25 | 陈亮 | Communication base station siting investigation system and method based on unmanned plane |
CN109511125A (en) * | 2018-11-15 | 2019-03-22 | 中国科学院上海微系统与信息技术研究所 | A kind of method of identification adjacent area interference and different system interference in wireless network |
CN116390106A (en) * | 2023-04-18 | 2023-07-04 | 国脉通信规划设计有限公司 | Intelligent community 5G network planning method |
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EP1866662A1 (en) * | 2005-03-18 | 2007-12-19 | Seeker Wireless PTY Limited | Enhanced mobile location |
CN101137171A (en) * | 2007-03-02 | 2008-03-05 | 中兴通讯股份有限公司 | Method and system for obtaining and correcting wireless propagation model parameter |
CN102065432A (en) * | 2009-11-13 | 2011-05-18 | 中国移动通信集团黑龙江有限公司 | Transmission model-based network coverage correcting method and system |
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CN1556661A (en) * | 2004-01-12 | 2004-12-22 | 中兴通讯股份有限公司 | Method of radio network contemplation |
EP1866662A1 (en) * | 2005-03-18 | 2007-12-19 | Seeker Wireless PTY Limited | Enhanced mobile location |
CN101137171A (en) * | 2007-03-02 | 2008-03-05 | 中兴通讯股份有限公司 | Method and system for obtaining and correcting wireless propagation model parameter |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105744536A (en) * | 2014-12-09 | 2016-07-06 | 富士通株式会社 | Wireless network deployment method and device |
CN106332130A (en) * | 2015-07-02 | 2017-01-11 | 中国移动通信集团设计院有限公司 | Base station survey method, apparatus and system |
CN108572379A (en) * | 2018-04-27 | 2018-09-25 | 陈亮 | Communication base station siting investigation system and method based on unmanned plane |
CN108572379B (en) * | 2018-04-27 | 2022-02-08 | 陈亮 | Communication base station site selection exploration method based on unmanned aerial vehicle |
CN109511125A (en) * | 2018-11-15 | 2019-03-22 | 中国科学院上海微系统与信息技术研究所 | A kind of method of identification adjacent area interference and different system interference in wireless network |
CN109511125B (en) * | 2018-11-15 | 2021-12-03 | 中国科学院上海微系统与信息技术研究所 | Method for identifying adjacent cell interference and different system interference in wireless network |
CN116390106A (en) * | 2023-04-18 | 2023-07-04 | 国脉通信规划设计有限公司 | Intelligent community 5G network planning method |
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