CN115696358B - 5G wireless communication indoor distribution system and method - Google Patents
5G wireless communication indoor distribution system and method Download PDFInfo
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Abstract
The invention discloses a 5G wireless communication indoor distribution system and a method, comprising the following steps: the system comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring a design plan of a building and decomposing the acquired design plan into a plurality of floor plans; the marking module is used for marking the wiring resource areas of the transmission line and the power supply line on the floor plan and generating a marking construction drawing; a survey module for performing 5G signal source arrangement in a wiring resource area of the floor plan; the server module is used for acquiring data information of the marked construction drawing, traversing the wiring resource area and obtaining an optimal layout drawing based on survey parameter results; the interference module is used for interfering the signal intensity distribution uneven area in the optimal layout; the indoor 5G wireless communication distribution system and the indoor 5G wireless communication distribution method are optimized for indoor 5G under the condition of non-clustered condition, so that the indoor 5G communication intensity is guaranteed to be averaged, the condition that the signal intensity of a part of area is too high or too low is avoided, and the whole indoor communication is guaranteed to be smooth.
Description
Technical Field
The invention relates to a 5G wireless communication indoor distribution system and a method.
Background
With the rapid development of information technology and IOT, mobile communication technology has moved forward with increasing consumption and demand for content-centric video-type content. Information technology brings convenience to the work and life of users, and simultaneously, brings faster and higher requirements to future mobile communication networks, and the information technology also faces great challenges. In order to better cope with the high-speed growth of the mobile data traffic in the future, the mass equipment connection and the explosive growth of various application scenes and provide better user experience, the industry has introduced fifth generation (5G) mobile communication technology, the peak theoretical transmission speed of which can reach tens of Gb per second, which is hundreds of times faster than the transmission speed of a 4G network, and the whole ultrahigh-quality film can be downloaded within 1 second; and 70% -80% of mobile broadband services are concentrated indoors as measured. With the advent and trial of 5G technology, users may desire ultra-high density, very low latency, very high rate, and a wider range of networking capabilities. Compared with the current mobile network, the 5G mobile network is deployed on higher C and millimeter wave frequency bands, so that the requirement of 5G service on ultra-large spectrum bandwidth is met. However, 5G macro base station signals deployed in high-band face a greater link loss problem when they are through-wall covering indoor scenes, resulting in insufficient indoor deep coverage. Through researches, compared with a 4G macro base station signal, when a C frequency band outdoor signal penetrates through a concrete wall, an extra 8-13dB link loss is generated every time the C frequency band outdoor signal penetrates through the wall. The loss of millimeter wave signals penetrating through concrete cement walls is more than 60dB, and the huge attenuation caused by the higher millimeter wave frequency band 5G signals causes the millimeter wave signals to basically lose the wall penetrating capacity, so that the biggest difficulty faced by the person skilled in the art is how to perform indoor coverage, and meanwhile, the transmission loss is reduced as much as possible.
The existing indoor distribution design of 5G invalid communication is proposed for traffic congestion caused by people clustering, for example, the indoor small base station arrangement method based on 5G communication technology in chinese patent application No. 202010205912.8 discloses "comprising the steps of judging the type of building: when the interior of the structure comprises a compartment structure and the wall thickness between the compartments exceeds a certain threshold value, judging the structure as a first type, and otherwise judging the structure as a second type; indoor small base stations are arranged according to building types: when the building type is judged to be the first type, the position placement among the indoor 5G small base stations comprises the steps of arranging the indoor small base stations at the center of a pavement among the compartments at certain intervals; when the building type is judged to be the second type, the positioning between the indoor 5G small base stations comprises the steps of arranging the indoor 5G small base stations in an array at certain intervals by using elements which are nearest to the 5G small base stations and are positioned at the edges of the indoor small base stations as arrays based on the building section view of the building. The invention solves the problems of insufficient indoor deep coverage and capacity of a 5G network, excessive link loss and traffic congestion, and optimizes the arrangement of indoor small base stations aiming at the traffic congestion.
In another example, the chinese invention patent with application number 201911092663.X discloses an indoor digital coverage method based on a 5G communication technology, in which "through an outdoor 5G base station, a 5G network test signal is transmitted to a small base station located in the indoor nearest to the 5G base station; network synchronization is carried out on other indoor small base stations positioned on the same plane and the indoor small base station positioned closest to the 5G base station, wherein the positions of the other indoor small base stations positioned on the same plane are optimally designed and installed based on a preset rule; and according to the conditions of the small base stations, the resource allocation and optimization are carried out among the indoor small base stations. The method solves the problems of insufficient indoor deep coverage and capacity of a 5G network, excessive link loss and traffic congestion, and can effectively lighten the workload of an outdoor station.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a 5G wireless communication indoor distribution system and a 5G wireless communication indoor distribution method which are optimized for indoor 5G under the condition of non-clustered condition, ensure the averaging of indoor 5G communication intensity, avoid the condition of too high or too low signal intensity of partial areas and ensure the fluency of overall indoor communication.
The technical scheme adopted for solving the technical problems is as follows:
a 5G wireless communication indoor distribution system, comprising:
the system comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring a design plan of a building and decomposing the acquired design plan into a plurality of floor plans;
a wiring module for generating a wiring resource region on the floor plan;
the marking module is used for marking the wiring resource areas of the transmission line and the power supply line on the floor plan and generating a marking construction drawing;
a survey module for performing 5G signal source arrangement in the wiring resource area of the floor plan and generating survey parameters based on the arrangement result;
the server module acquires data information of the marked construction diagram, inputs coverage index requirements and capacity index requirements of indoor signal coverage and signal attenuation factors corresponding to indoor environments, traverses a wiring resource area, and obtains an optimal layout diagram based on survey parameter results;
and the interference module is used for interfering the areas with uneven signal intensity distribution in the optimal layout, so that the signal distribution intensity of each area is uniform.
Preferably, the design plan of the building is composed of more than one floor plan, and the building comprises an office building, a hotel, a convention center and a market.
Preferably, the wiring resource region is a circular region which is outwardly diffused centering on the transmission line and the power supply line.
Preferably, the survey module includes a cell phone tool, a portable device, a digital camera, an infrared range finder, a signal source and a receiver.
Preferably, the survey parameters are frequency bin, CRS RSRP, tx_power, handover success rate, dropped call rate, interference region and call completing rate, and the interference module includes an active splitter, coupler, combiner, attenuator and trunk amplifier.
Preferably, the wiring module includes a plurality of embedded cables disposed in the wall.
Another technical problem to be solved by the present invention is to provide a 5G wireless communication indoor distribution method, which includes the following steps:
obtaining a design plan of a building, wherein the design plan comprises a floor plan of each floor, a construction mark marked on an elevator opening on the floor plan, and a transmission line marked on the floor plan;
inputting a coverage index requirement and a capacity index requirement of indoor coverage;
acquiring wiring resource areas of a transmission line and a power line;
surveying the attenuation condition of indoor signals of each floor;
marking the deployable antenna areas of each floor through an indoor transmission line;
acquiring a signal attenuation factor corresponding to an indoor environment, so as to calculate the penetration loss of the signal attenuation factor;
determining the necessary installation space of a machine room and an antenna feeder line;
indoor antenna arrangement is carried out on the deployable antenna area based on the coverage index requirement and the capacity index requirement, and an optimal arrangement diagram is generated based on the penetration loss;
interference is carried out on indoor antennas in areas with uneven signal intensity distribution based on an optimal layout;
and generating and arranging the indoor distribution map based on the interference result.
Preferably, the transmission loss is calculated based on the signal attenuation factor corresponding to the indoor environment by the following steps:
acquiring the type of the indoor environment, and giving an attenuation factor based on the type of the indoor environment;
calculating path loss by adopting an attenuation factor propagation model;
the attenuation factor propagation model is PathLoss (dB) =pl (d 0) +10χnlog (d/d 0) +r, wherein PL (d 0) is path attenuation from the antenna d0, d0 is 1 meter, d is propagation distance, n is attenuation factor, and R is additional loss caused by floor slab, partition board and wall;
and obtaining the penetration loss according to the link budget result.
Preferably, the method for generating the optimal layout based on the penetration loss comprises the following steps:
traversing indoor antenna set points in a wiring resource area in a traversing mode according to preset interval intervals on the basis of meeting coverage index requirements and capacity index requirements;
obtaining a plurality of groups of signal intensity data samples based on the traversing result;
to be used forTo calculate the variance of each group of signal strength data samples, S2 is the variance value, n is the number of variable values, sigma is the sign of the total, X is the variable, < >>And taking the antenna set point corresponding to the signal strength data sample with the minimum variance as an optimal layout for the arithmetic mean.
Preferably, the method for interfering the indoor antenna in the area of uneven signal intensity distribution comprises the following steps:
acquiring signal intensity data of each signal in the optimal layout;
judging whether the signal strength data exceeds a preset threshold interval, if so, reducing the signal strength to be within the preset threshold interval by adopting an attenuator;
judging whether the signal intensity data is lower than a preset threshold value interval, and if so, amplifying the signal intensity to be within the preset threshold value interval by adopting a trunk amplifier.
The beneficial effects of the invention are as follows:
and decomposing and marking the obtained design plan of the building to obtain a marked construction diagram, traversing indoor antenna set points in a wiring resource region capable of carrying out 5G signal source arrangement according to the obtained marked construction diagram, so as to obtain a plurality of groups of signal intensity data samples, taking the signal intensity data samples corresponding to the minimum variance as optimal arrangement points, thus obtaining an optimal arrangement diagram, and interfering signal intensity distribution states in the optimal arrangement diagram, so that the signal intensity distribution of each region is uniform, and the normal use of the 5G signals of the whole indoor space is ensured.
Drawings
FIG. 1 is a schematic flow chart of a 5G wireless communication indoor distribution system according to the present invention;
fig. 2 is a diagram illustrating an antenna position design of a 5G wireless communication indoor distribution system according to the present invention.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention. The invention is more particularly described by way of example in the following paragraphs with reference to the drawings. Advantages and features of the invention will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-2, a 5G wireless communication indoor distribution system includes:
the system comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring a design plan of a building and decomposing the acquired design plan into a plurality of floor plans;
a wiring module for generating a wiring resource region on the floor plan;
the marking module is used for marking the wiring resource areas of the transmission line and the power supply line on the floor plan and generating a marking construction drawing;
a survey module for performing 5G signal source arrangement in the wiring resource area of the floor plan and generating survey parameters based on the arrangement result;
the server module acquires data information of the marked construction diagram, inputs coverage index requirements and capacity index requirements of indoor signal coverage and signal attenuation factors corresponding to indoor environments, traverses a wiring resource area, and obtains an optimal layout diagram based on survey parameter results;
and the interference module is used for interfering the areas with uneven signal intensity distribution in the optimal layout, so that the signal distribution intensity of each area is uniform.
The design plan of the building is composed of more than one floor plan, and the building comprises office buildings, hotels, convention centers and shops, and it is noted that the building group mainly refers to a closable building, and applicable deviations may exist for non-closed building units such as villages in cities, residential communities and the like.
The wiring resource region is a circular region which is outwardly diffused with the transmission line and the power line as the centers, specifically, the range of the wiring resource region is extended to a distance of 1 meter outside with the position where the transmission line and the power line can be connected as the center, and in this embodiment, the transmission line and the power line refer to a power source, a data line, a signal line, an antenna feeder line, and the like.
The survey module comprises a mobile phone tool, a portable machine, a digital camera, an infrared range finder, a signal source and a receiver, wherein the survey parameters are frequency points, CRS RSRP, TX_POWER, switching success rate, call drop rate, interference area and call completing rate, the tool which can be adopted by the survey module can be selected according to the needs, and the acquired survey parameters are specifically used as the reference, wherein the infrared range finder is used for arranging indoor antennas and feeder lines, and the signal source and the receiver are used for determining the attenuation condition of an indoor wireless channel.
The interference module comprises an active power divider, a coupler, a combiner, an attenuator and a trunk amplifier, wherein the interference module mainly comprises the attenuator for adjusting the signal intensity and the trunk amplifier, and the active power divider, the coupler and the combiner are used for carrying out supplementary interference according to the requirement.
The wiring module comprises a plurality of embedded cables which are arranged in a wall body, and specifically, the arrangement mode of the embedded cables is designed firstly and then arranged, namely, the arrangement of the positions of the conventional cables is firstly carried out on a floor plan, and then the position adjustment is carried out based on the signal intensity distribution on the optimal arrangement diagram.
A 5G wireless communication indoor distribution method, comprising the steps of:
obtaining a design plan of a building, wherein the design plan comprises a floor plan of each floor, a construction mark marked on an elevator opening on the floor plan, and a transmission line marked on the floor plan;
inputting a coverage index requirement and a capacity index requirement of indoor coverage;
acquiring wiring resource areas of a transmission line and a power line;
surveying the attenuation condition of indoor signals of each floor;
marking the deployable antenna areas of each floor through an indoor transmission line;
acquiring a signal attenuation factor corresponding to an indoor environment, so as to calculate the penetration loss of the signal attenuation factor;
determining the necessary installation space of a machine room and an antenna feeder line;
indoor antenna arrangement is carried out on the deployable antenna area based on the coverage index requirement and the capacity index requirement, and an optimal arrangement diagram is generated based on the penetration loss;
interference is carried out on indoor antennas in areas with uneven signal intensity distribution based on an optimal layout;
and generating and arranging the indoor distribution map based on the interference result.
It should be noted that, the coverage index requirement and the capacity index requirement are input by the operators, and because the requirements of different scenes have different priorities, such as office buildings, the uniformity and the reliability of the signal intensity distribution are required to be considered, so that the better signal receiving can be realized in each indoor space area, the signal receiving in the areas such as a hall, a guest room, a conference room, a garage and the like is required to be considered by a hotel, and the capacity of a signal channel caused by the clustered positions is required to be considered by a convention center, a market and the like.
The mode of calculating the penetration loss based on the signal attenuation factor corresponding to the indoor environment is as follows:
acquiring the type of the indoor environment, and giving an attenuation factor based on the type of the indoor environment;
calculating path loss by adopting an attenuation factor propagation model;
the attenuation factor propagation model is PathLoss (dB) =pl (d 0) +10χnlog (d/d 0) +r, wherein PL (d 0) is path attenuation from the antenna d0, d0 is 1 meter, d is propagation distance, n is attenuation factor, and R is additional loss caused by floor slab, partition board and wall;
and obtaining the penetration loss according to the link budget result.
The value table of the attenuation factors can be shown in the following table 1;
TABLE 1 attenuation factor values Table
| Environment (environment) | Free space | Full open environment | Semi-open environment | More closed environment |
| Attenuation factor n | 2 | 2.0-2.5 | 2.5-3.0 | 3.0-3.5 |
The method for generating the optimal layout based on the penetration loss comprises the following steps:
traversing indoor antenna set points in a wiring resource area in a traversing mode according to preset interval intervals on the basis of meeting coverage index requirements and capacity index requirements;
obtaining a plurality of groups of signal intensity data samples based on the traversing result;
to be used forTo calculate the variance of each group of signal strength data samples, S2 is the variance value, n is the number of variable values, sigma is the sign of the total, X is the variable, < >>For arithmetic mean, signal strength is corresponding with minimum varianceThe antenna set point of the data samples is used as the optimal layout.
The traversing mode of the acquisition of the signal intensity data sample is as follows:
constructing a matlab simulation model at a server side;
the free space path loss model and the attenuation factor propagation model are imported into a simulation model for testing;
the free space path loss formula is:
the received power is inversely proportional to the square of the distance d between the transmit and receive antennas and directly proportional to the square of the wavelength;
and performing simulation sampling according to the floor plan to obtain a plurality of signal intensity data samples.
In this embodiment, the traversed wiring resource area may be further expanded to further obtain more signal strength data samples, and the wiring resource area may be reversely pushed according to the signal strength data samples, so as to obtain wiring position points of the transmission line and the power line, and perform the cable wiring operation according to the wiring position points.
The method for interfering the indoor antenna in the area with uneven signal intensity distribution comprises the following steps:
acquiring signal intensity data of each signal in the optimal layout;
judging whether the signal strength data exceeds a preset threshold interval, if so, reducing the signal strength to be within the preset threshold interval by adopting an attenuator;
judging whether the signal intensity data is lower than a preset threshold value interval, and if so, amplifying the signal intensity to be within the preset threshold value interval by adopting a trunk amplifier.
The beneficial effects of the invention are as follows:
and decomposing and marking the obtained design plan of the building to obtain a marked construction diagram, traversing indoor antenna set points in a wiring resource region capable of carrying out 5G signal source arrangement according to the obtained marked construction diagram, so as to obtain a plurality of groups of signal intensity data samples, taking the signal intensity data samples corresponding to the minimum variance as optimal arrangement points, thus obtaining an optimal arrangement diagram, and interfering signal intensity distribution states in the optimal arrangement diagram, so that the signal intensity distribution of each region is uniform, and the normal use of the 5G signals of the whole indoor space is ensured.
The above-mentioned embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto, and all kinds of modifications, substitutions or alterations made to the above-mentioned structures of the present invention according to the above-mentioned general knowledge and conventional means of the art without departing from the basic technical ideas of the present invention shall fall within the scope of the present invention.
Claims (8)
1. The utility model provides a 5G wireless communication indoor distribution system which characterized in that includes:
the system comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring a design plan of a building and decomposing the acquired design plan into a plurality of floor plans;
a wiring module for generating a wiring resource region on the floor plan;
the marking module is used for marking the wiring resource areas of the transmission line and the power supply line on the floor plan and generating a marking construction drawing;
a survey module for performing 5G signal source arrangement in the wiring resource area of the floor plan and generating survey parameters based on the arrangement result;
the server module acquires data information of the marked construction diagram, inputs coverage index requirements and capacity index requirements of indoor signal coverage and signal attenuation factors corresponding to indoor environments, traverses a wiring resource area, and obtains an optimal layout diagram based on survey parameter results;
the interference module is used for interfering the areas with uneven signal intensity distribution in the optimal layout, so that the signal distribution intensity of each area is uniform; the indoor distribution method of the 5G wireless communication comprises the following steps:
obtaining a design plan of a building, wherein the design plan comprises a floor plan of each floor, a construction mark marked on an elevator opening on the floor plan, and a transmission line marked on the floor plan;
inputting a coverage index requirement and a capacity index requirement of indoor coverage;
acquiring wiring resource areas of a transmission line and a power line;
surveying the attenuation condition of indoor signals of each floor;
marking the deployable antenna areas of each floor through an indoor transmission line;
acquiring a signal attenuation factor corresponding to an indoor environment, so as to calculate the penetration loss of the signal attenuation factor;
determining the necessary installation space of a machine room and an antenna feeder line;
indoor antenna arrangement is carried out on the deployable antenna area based on the coverage index requirement and the capacity index requirement, and an optimal arrangement diagram is generated based on the penetration loss;
interference is carried out on indoor antennas in areas with uneven signal intensity distribution based on an optimal layout;
generating an indoor distribution map based on the interference result and arranging the indoor distribution map;
the method for generating the optimal layout based on the penetration loss comprises the following steps:
traversing indoor antenna set points in a wiring resource area in a traversing mode according to preset interval intervals on the basis of meeting coverage index requirements and capacity index requirements;
obtaining a plurality of groups of signal intensity data samples based on the traversing result;
to be used forTo calculate the variance of each set of signal strength data samples, S 2 Is the variance value, n is the number of variable values, sigma is the sign of the total, X is the variable, { circumflex }>And taking the antenna set point corresponding to the signal strength data sample with the minimum variance as an optimal layout for the arithmetic mean.
2. The 5G wireless communication indoor distribution system of claim 1, wherein: the design plan of the building consists of more than one floor plan, and the building comprises an office building, a hotel, a convention center and a market.
3. The 5G wireless communication indoor distribution system of claim 2, wherein: the wiring resource region is a circular region which is outwardly diffused centering on the transmission line and the power supply line.
4. The 5G wireless communication indoor distribution system of claim 1, wherein: the survey module comprises a mobile phone tool, a portable machine, a digital camera, an infrared range finder, a signal source and a receiver.
5. The 5G wireless communication indoor distribution system of claim 4, wherein: the survey parameters are frequency point, CRS RSRP, TX_POWER, switching success rate, dropped call rate, interference area and call completing rate, and the interference module comprises an active divider, a coupler, a combiner, an attenuator and a trunk amplifier.
6. The 5G wireless communication indoor distribution system of claim 5, wherein: the wiring module comprises a plurality of embedded cables which are arranged in a wall body.
7. The indoor distribution system of claim 1, wherein the transmission loss is calculated based on the signal attenuation factor corresponding to the indoor environment by:
acquiring the type of the indoor environment, and giving an attenuation factor based on the type of the indoor environment;
calculating path loss by adopting an attenuation factor propagation model;
the attenuation factor propagation model is PathLoss (dB) =pl (d 0) +10χnlog (d/d 0) +r, wherein PL (d 0) is path attenuation from the antenna d0, d0 is 1 meter, d is propagation distance, n is attenuation factor, and R is additional loss caused by floor slab, partition board and wall;
and obtaining the penetration loss according to the link budget result.
8. The indoor distribution system for 5G wireless communication according to claim 1, wherein the interference method for the indoor antenna in the area with uneven signal intensity distribution comprises:
acquiring signal intensity data of each signal in the optimal layout;
judging whether the signal strength data exceeds a preset threshold interval, if so, reducing the signal strength to be within the preset threshold interval by adopting an attenuator;
judging whether the signal intensity data is lower than a preset threshold value interval, and if so, amplifying the signal intensity to be within the preset threshold value interval by adopting a trunk amplifier.
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| CN101969648A (en) * | 2010-09-14 | 2011-02-09 | 广州天越电子科技有限公司 | Planning system for realizing wireless network communication coverage |
| CN104811968A (en) * | 2014-01-27 | 2015-07-29 | 中国移动通信集团湖北有限公司 | Propagation model calibration method and device |
| CN114827926A (en) * | 2022-06-28 | 2022-07-29 | 中家院（北京）检测认证有限公司 | Optimization method and system of path loss and method for measuring signal intensity |
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| KR102661600B1 (en) * | 2016-11-17 | 2024-04-30 | 삼성전자 주식회사 | Method and apparatus for analyzing communication channel planning radio frequency network considering information related real environment |
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| CN101969648A (en) * | 2010-09-14 | 2011-02-09 | 广州天越电子科技有限公司 | Planning system for realizing wireless network communication coverage |
| CN104811968A (en) * | 2014-01-27 | 2015-07-29 | 中国移动通信集团湖北有限公司 | Propagation model calibration method and device |
| CN114827926A (en) * | 2022-06-28 | 2022-07-29 | 中家院（北京）检测认证有限公司 | Optimization method and system of path loss and method for measuring signal intensity |
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