In-building Communication Equipment Selection Method and System

Abstract

The present invention belongs to the technical field of mobile communication, and particularly relates to a method and system for selecting in-building communication equipment. First, the communication network mode is set according to the requirements of scenario applications, and the cell coverage range and the number of cell configurations in the scenario application area are obtained according to the building volume in the scenario application area and the user edge rate requirements of the communication network mode. Then, candidate equipment for the in-building construction plan is selected from the in-building equipment library according to the scenario application type. The candidate equipment with the lowest total construction cost is selected from the candidate equipment, and the selected candidate equipment is used as the in-building construction plan. The present invention selects economical and applicable in-building equipment according to the scenario application type, scenario building volume and cell capacity, effectively reduces the input-output ratio of the construction of in-building communication equipment on the premise of ensuring user perception, can improve the selection efficiency, avoid resource waste, and has good application prospects.

Description

Technical Field

[0001] The present invention belongs to the technical field of mobile communications, and particularly relates to a method and system for selecting indoor distribution communication equipment. Background Art

[0002] The indoor distribution system, abbreviated as indoor distribution, evenly distributes the signals of mobile communication base stations to every corner of the room through various indoor antenna devices, thus ensuring ideal signal coverage in the indoor area. It can solve indoor blind area coverage and signal extension, improve indoor communication quality, and scientifically distribute the base station signals to each room and corridor in the room without mutual interference. It is a supplement and extension of base stations and microcells, and cannot be replaced by base stations and repeaters. It is an indispensable part of mobile communications in large cities.

[0003] According to the analysis of complaint scenario types, the complaints in the basement are gradually on the rise. Users in scenarios such as large shopping malls and residential areas have higher and higher requirements for data (mainly scanning code for payment) and voice (basic services). Currently, there are many types of equipment for solving basement coverage, with different functions and costs. Most of them select indoor distribution equipment manually. Due to factors such as human cognitive errors, it is easy to cause uneven equipment selection. Therefore, how to scientifically and accurately select effective equipment types is of great importance. Summary of the Invention

[0004] For this reason, the present invention provides a method and system for selecting indoor distribution communication equipment, which effectively reduces the input-output ratio of the construction of indoor distribution communication equipment by selecting economical and applicable indoor distribution equipment according to the scenario application type, scenario building volume and cell capacity.

[0005] According to the design scheme provided by the present invention, a method for selecting indoor distribution communication equipment is provided, including the following contents:

[0006] Set the communication network system according to the scenario application requirements, and obtain the cell coverage range and cell configuration quantity in the scenario application area according to the building volume in the scenario application area and the user edge rate requirement of the communication network system;

[0007] Select candidate equipment for the indoor distribution construction plan from the indoor distribution equipment library according to the scenario application type;

[0008] Select the candidate equipment with the lowest total cost from the candidate equipment, and use the selected candidate equipment as the indoor distribution construction plan.

[0009] As the method for selecting in-building communication equipment in the present invention, further, when obtaining the cell coverage range and the number of cell configurations in the scenario application area according to the building volume in the scenario application area and the user edge rate requirement of the communication network system, first, the average single-user download rate is obtained based on the area of the scenario application area and by using the capacity model; then, the number of cells required to be configured in the scenario application area is obtained by using the single-user download rate, the market penetration rate, and the busy-hour user activation rate.

[0010] As the method for selecting in-building communication equipment in the present invention, further, the capacity model is expressed as: average single-user download rate = (number of carriers × single-cell throughput) / (total number of users × market share × downlink service duty cycle × busy-hour user activation rate).

[0011] As the method for selecting in-building communication equipment in the present invention, further, the candidate equipment in the in-building equipment library includes: traditional mushroom heads and / or traditional panel antennas and / or digital Lightsites and / or home base stations Femto and / or Lampsites in indoor digital distribution.

[0012] As the method for selecting in-building communication equipment in the present invention, further, the in-building construction plans in the in-building equipment library are also pre-set with excluded equipment for each scenario application type.

[0013] As the method for selecting in-building communication equipment in the present invention, further, the in-building construction plans in the in-building equipment library are also pre-configured with the number of antennas required for each candidate equipment, the construction cost, the antenna accessories, and the annual electricity cost during use.

[0014] As the method for selecting in-building communication equipment in the present invention, further, when selecting the candidate equipment with the lowest total cost from the candidate equipment, the candidate equipment with the lowest total cost is comprehensively selected based on the equipment cost, the electricity cost, and the later maintenance.

[0015] Further, the present invention also provides an in-building communication equipment selection system, including: a parameter setting module and a solution obtaining module, where,

[0016] The parameter setting module is used to set the communication network system according to the scenario application requirements, and obtain the cell coverage range and the number of cell configurations in the scenario application area according to the building volume in the scenario application area and the user edge rate requirement of the communication network system;

[0017] The solution obtaining module is used to select the candidate equipment for the in-building construction plan from the in-building equipment library according to the scenario application type; select the candidate equipment with the lowest total cost from the candidate equipment, and use the selected candidate equipment as the in-building construction plan.

[0018] The beneficial effects of the present invention:

[0019] Based on the openness, multiple partitions and application scenario types of the area, and according to the area of the scenario area, the capacity model is used to determine the number of cells. Then, based on factors such as equipment cost, electricity cost and maintenance, the equipment with the lowest comprehensive cost is selected from the candidate equipment. On the premise of ensuring the user perception, the selection efficiency can be improved, resource waste can be avoided, and it has a good application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the selection process of in-building communication equipment in the embodiment;

[0021] Figure 2 It is a schematic diagram of the cost comparison of related equipment in the in-building equipment library in the embodiment;

[0022] Figure 3 It is a schematic diagram of the operation interface for selecting in-building communication equipment in the embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and technical solutions.

[0024] In the embodiment of the present invention, refer to Figure 1 as shown, a method for selecting in-building communication equipment is provided, including:

[0025] S101. Set the communication network mode according to the scenario application requirements, and obtain the cell coverage range and the number of cell configurations in the scenario application area according to the building volume in the scenario application area and the user edge rate requirements of the communication network mode;

[0026] S102. Select candidate equipment for the in-building construction plan from the in-building equipment library according to the scenario application type; select the candidate equipment with the lowest total cost from the candidate equipment, and use the selected candidate equipment as the in-building construction plan.

[0027] By selecting affordable in-building equipment according to the scenario application type, scenario building volume and cell capacity, on the premise of ensuring the user perception, the efficiency and accuracy of the selection can be improved, and the input-output ratio of the in-building communication equipment construction can be reduced, which is convenient for the practical application of the in-building communication construction project.

[0028] As a preferred embodiment, further, when obtaining the cell coverage range and the number of cell configurations in the scenario application area according to the building volume in the scenario application area and the user edge rate requirements of the communication network mode, first obtain the average single-user download rate according to the area of the scenario application area and use the capacity model; then use the single-user download rate, market penetration rate, and busy-hour user activation rate to obtain the number of cells required to be configured in the scenario application area.

[0029] In specific scenario applications, it can be roughly divided into open and partitioned according to the building volume. For example, the basement types mainly include two types: open and multi-partitioned. According to different areas, the capacity model can be used to determine the number of cells required in the community. Among them, the capacity model can be expressed as: average single-user download rate = (number of carriers × single-cell throughput) / (total users × market share × downlink service duty cycle × busy-hour user activation rate). Using the capacity model, by inputting the single-user download rate to be guaranteed, the China Unicom market penetration rate, and the busy-hour user activation rate, the number of cells to be configured in this area can be obtained. Further, through on-site verification, 1 cell in the basement over 200 square meters can meet the coverage and capacity requirements.

[0030] Further, in the embodiments of this case, the candidate devices in the in-building distribution equipment library include: traditional mushroom heads and / or traditional panel antennas and / or digital Lightsites and / or home base stations Femto and / or Lampsites in indoor digital distribution.

[0031] Further, in the in-building distribution construction plan in the in-building distribution equipment library, exclusion devices for each scenario application type are also pre-set. Further, in the in-building distribution construction plan in the in-building distribution equipment library, the number of antennas required for each candidate device, the construction cost, the antenna accessories, and the annual electricity cost during use are also pre-configured. When selecting the candidate device with the lowest total cost, the candidate device with the lowest total cost can be comprehensively selected based on the equipment cost, electricity cost, and later maintenance.

[0032] According to the preliminary measurement, the costs of each device are as Figure 2 shown, and the maintenance costs of related devices are as follows:

[0033] Lightsite: The pRRU background can be monitored, and the equipment in the basement scenario can be installed openly, which is convenient for maintenance. Whether the mushroom head is in place can be monitored through commands. Traditional in-building distribution: The RRU background can be monitored, and there is a standing wave alarm that requires on-site troubleshooting of the distribution. Femto solution: All devices (including the end DP) can be monitored in the background, and it can be docked with the China Unicom comprehensive network management. Currently, it is self-monitored through the Femto network management.

[0034] Therefore, the core problem in the current in-building distribution communication construction lies in the high or low total cost. An economical and applicable device type can be comprehensively selected from the comparison of equipment cost, electricity cost, and maintenance.

[0035] Further, based on the above method, the embodiments of the present invention also provide an in-building distribution communication device selection system, including: a parameter setting module and a solution acquisition module, where,

[0036] The parameter setting module is used to set the communication network system according to the scenario application requirements, and obtain the cell coverage range and the number of cell configurations in the scenario application area according to the building volume in the scenario application area and the user edge rate requirements of the communication network system.

[0037] A solution acquisition module, which is used to select candidate devices for in-building distribution construction solutions from the in-building distribution equipment library according to the scenario application type; select the candidate device with the lowest total construction cost from the candidate devices, and use the selected candidate device as the in-building distribution construction solution.

[0038] To verify the effectiveness of the solution, the following further explanations will be made in combination with the current actual scenario application type:

[0039] In the university campus scenario, traditional in-building distribution and Femto are used as exclusion options. Under the digital in-building distribution solution, according to the total building area, building length and width, and room width, the number of rooms on each floor of the building is calculated. The number of rooms on each floor is calculated based on 4 rooms covered by each point, and the number of points, that is, the number of pRRUs, is obtained; for the digital in-building distribution 1-to-4 solution, according to 2 rooms covered by each mushroom head, the total number of rooms is divided by 8 to get the number of pRRUs.

[0040] In the office building scenario, the Femto solution is used as an exclusion option. Under the traditional in-building distribution solution, the single-point coverage area is calculated according to the coverage radius of 6 meters for each mushroom head, and then the number of antennas is calculated by dividing the building area by the single-antenna coverage area. The RRU is calculated based on 60 mushroom heads per unit. After dividing the number of antennas by 60 and rounding up, the number of RRUs is obtained. Under the digital in-building distribution solution, according to the coverage radius of 8 meters for each pRRU, the total building area is divided by the single-pRRU coverage area to obtain the number of pRRUs. Under the digital in-building distribution 1-to-4 solution, the number of points is divided by 4 to obtain the number of pRRUs.

[0041] In the shopping mall scenario, the logic is the same as that of the office building scenario. The only difference is that the shopping mall is an open scenario, and the single-pRRU coverage spacing is 1 meter larger than the spacing of the traditional in-building distribution mushroom heads. When calculating the area, the single-pRRU coverage area is 3.14 * radius^2.

[0042] In the residential area scenario, it is not recommended to use the digital in-building distribution, digital in-building distribution 1-to-4, and Femto solutions. Under the traditional in-building distribution, that is, the RRU external antenna solution, the number of RRUs is calculated according to 2 buildings covered by each RRU (according to the current residential community solution, on average, each RRU covers 1 - 2 buildings, or it can also be calculated according to 1 building or 1.5 buildings). The number of buildings is divided by 2 to get the number of RRUs.

[0043] In the open garage scenario, under the traditional in-building distribution solution, calculating based on a single-antenna coverage radius of 12 meters, for digital in-building distribution with a coverage radius of 22 meters, and for digital in-building distribution with 1-to-4 configuration, calculating the coverage area of a single point based on a single-antenna coverage of 17 meters. Divide the total garage area by the single-antenna coverage area to obtain the number of antennas. In the garage scenario, each RRU is calculated to support 80 antennas. Divide the number of antennas by 80 and round up to obtain the number of RRUs. For the Femto solution, calculate based on each device covering 2,500 square meters. Divide the total garage area by 2,500 to obtain the number of devices. Select the external antenna solution. Each panel antenna is calculated to cover a length of 40 meters and a width of 20 meters. Divide the total building area by 40 and then by 20 to obtain the number of panel antennas. Calculate the number of RRUs based on each RRU supporting 80 antennas.

[0044] In the garage scenario with multiple partitions, the logic is the same as the open type. The difference is that in the scenario with multiple partitions, for traditional in-building distribution, the coverage radius of traditional in-building distribution points is reduced from 12 meters to 10 meters, for digital in-building distribution, the coverage radius is reduced from 22 meters to 20 meters, and for the 1-to-4 antenna of digital in-building distribution, the coverage radius is reduced from 17 meters to 14 meters. The coverage width of the panel antenna is reduced from 20 meters to 15 meters. The single-antenna coverage area becomes relatively smaller. Divide the building area by the single-antenna coverage area to obtain the number of antennas. Divide the number of antennas by 80 and round up to obtain the number of RRUs.

[0045] Combining the above scenario analysis, through the exclusion equipment and candidate equipment solutions corresponding to each scenario type, the design scheme operation interface is as Figure 3 shown. The construction scenario selection area can be set to 6 types, namely universities, office buildings, shopping malls, residential buildings, garage - open type, and garage - multiple partitions, and select according to actual application requirements. Currently, the in-building distribution system is mainly for supplementing 4G or new building construction. In the future, the construction method of single 5G can also be added according to the actual situation. For residential areas, no data input is required for the total building area; for the scenarios of universities and residential areas, data needs to be input for the number of buildings / dong; only for the university scenario, the floor height / floor needs to be input. In the construction method, check the construction methods that need to be compared. After filling in all, click "Start Calculation". The display area is divided into two parts, namely the optimal selection and the cost calculation result of the selected construction method. Among them, if a certain construction method is not suitable for this scenario, "This method is not applicable" will be directly displayed in the description column. Through the interface operation, it is convenient and fast, and can intuitively understand the cost of each plan, conveniently and quickly select economical and applicable equipment, improve efficiency, and avoid waste of resources.

[0046] In the later stage, the selection result can be evaluated according to the cell radius, received power, and path loss to verify the rationality of the selected equipment. Among them, the path loss model uses the Keenan - Motley model applicable to indoor, and the received power is calculated using antenna gain and penetration loss.

[0047] The path loss model is expressed as: L_indoor = L_ss + kxF(k) + pxW(k) + D(d - d_s), where: L_ss is the free space propagation loss, L_ss = 32.5 + 20*logf + 20*logd; F is the frequency (MHz); d is the propagation distance (km); k is the number of floors penetrated by the direct wave; f is the floor attenuation factor; p is the number of walls penetrated by the direct wave; W is the wall attenuation factor (dB); D is the linear attenuation factor (dB / m); d_b is the indoor turning point (m), with a typical value of 65m, and an increase of 0.2dB / m for values greater than this. Through actual measurement, as shown in the following table, the penetration losses of various device types for the basement are not very different.

[0048]

[0049] Received power = Antenna gain - Penetration loss.

[0050] By evaluating the selection results, the signal quality of users, especially those at the cell edge, can be more effectively guaranteed, improving the user experience.

[0051] Unless otherwise specifically stated, the relative steps, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of the present invention.

[0052] Each embodiment in this specification is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. For the systems disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0053] The units and method steps of each example described in combination with the embodiments disclosed in this article can be implemented by electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Those of ordinary skill in the art can use different methods to implement the described functions for each specific application, but such implementation is not considered to exceed the scope of the present invention.

[0054] Those of ordinary skill in the art can understand that all or part of the steps in the above methods can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as: read-only memory, magnetic disk or optical disc, etc. Optionally, all or part of the steps of the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module / unit in the above embodiments can be implemented in the form of hardware or in the form of a software function module. The present invention is not limited to any specific form of combination of hardware and software.

[0055] Finally, it should be noted that the above embodiments are only specific embodiments of the present invention, used to illustrate the technical solutions of the present invention, rather than limiting it. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: any person skilled in the art within the technical scope disclosed by the present invention can still modify the technical solutions recorded in the foregoing embodiments, or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A method for selecting in-building communication equipment, characterized in that It includes the following content: Set the communication network mode according to the requirements of scenario applications, and obtain the cell coverage range and the number of cell configurations in the scenario application area according to the building volume in the scenario application area and the user edge rate requirements of the communication network mode; among them, obtain the average single-user download rate according to the area of the scenario application area and using the capacity model; and use the single-user download rate, market penetration rate, and busy-hour user activation rate to obtain the number of cells required to be configured in the scenario application area; the capacity model is expressed as: average single-user download rate = (number of carriers × single-cell throughput) / (total number of users × market share × downlink service duty cycle × busy-hour user activation rate); Select candidate equipment for the in-building distribution construction plan from the in-building distribution equipment library according to the scenario application type, where the in-building distribution construction plans in the in-building distribution equipment library are also pre-configured with the number of antennas required for each candidate equipment, construction cost, antenna accessories, and annual electricity cost during use; Comprehensively select the candidate equipment with the lowest total cost from the candidate equipment according to equipment cost, electricity cost, and later maintenance, and use the selected candidate equipment as the in-building distribution construction plan, and evaluate the in-building distribution construction plan according to the cell radius, received power, and path loss model. The path loss model is expressed as: L_indoor = L_ss + k×F(k) + p×W(k) + D(d - d_s), where L_ss is the free space propagation loss, and L_ss = 32.5 + 20×logf + 20×logd, F is the frequency; d is the propagation distance; k is the number of floors penetrated by the direct wave; f is the floor attenuation factor; p is the number of walls penetrated by the direct wave; W is the wall attenuation factor; D is the linear attenuation factor; d_s is the indoor turning point; received power = antenna gain - penetration loss.

2. The method for selecting in-building communication equipment according to claim 1, characterized in that The candidate equipment in the in-building distribution equipment library includes: traditional mushroom heads and / or traditional panel antennas and / or digital Lightsites and / or home base stations Femto and / or Lampsites in indoor digital distribution.

3. The method for selecting indoor distribution communication equipment according to claim 2, wherein, The in-building distribution construction plans in the in-building distribution equipment library are also pre-set with excluded equipment for each scenario application type.

4. A distributed communication device selection system, characterized in that Implemented based on the method described in claim 1, including: a parameter setting module and a plan acquisition module, where, The parameter setting module is used to set the communication network mode according to the requirements of scenario applications, and obtain the cell coverage range and the number of cell configurations in the scenario application area according to the building volume in the scenario application area and the user edge rate requirements of the communication network mode; The plan acquisition module is used to select candidate equipment for the in-building distribution construction plan from the in-building distribution equipment library according to the scenario application type; select the candidate equipment with the lowest total cost from the candidate equipment, and use the selected candidate equipment as the in-building distribution construction plan.

5. An electronic device, characterized in that, It includes a processor, a communication interface, a memory, and a communication bus. Among them, the processor, communication interface, and memory complete communication with each other through the communication bus; The memory is used to store computer programs; The processor is used to execute the programs stored on the memory and implement the method steps described in any one of claims 1 to 3 when the programs are executed.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method steps described in any one of claims 1 to 3 are implemented.

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