A method for large-scale deployment of 5G-A LampSite in large commercial buildings

Abstract

This application relates to the field of communication technology and provides a method for large-scale deployment of 5G-A LampSite in large commercial buildings. The method includes: based on the principle of comprehensive signal coverage, the construction party of the target large commercial building builds a shared passive indoor distribution physical base; each operator deploys its own 5G-A LampSite digital micro-stations within the target large commercial building, and after adaptation and conversion, the radio frequency signals output by the digital micro-stations are connected to the passive indoor distribution physical base; simulating multi-carrier simultaneous operation, intermodulation interference is detected in the connected network system; based on the detection results, the network system is adjusted until the intermodulation interference detection meets preset detection indicators, and the multi-operator service signals of the digital micro-stations are activated; and the activated network is accepted based on perception performance indicators. This application can achieve full-area 5G signal coverage in large commercial buildings, reduce costs, and improve signal stability and user experience.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a method for large-scale deployment of 5G-A LampSite in large commercial buildings. Background Technology

[0002] Existing indoor signal coverage solutions for large commercial buildings mainly have the following problems:

[0003] (1) Traditional passive indoor distribution systems are often operated by multiple operators who work independently to install cabling and equipment, resulting in a huge waste of resources.

[0004] (2) The emerging 5G-A LampSite active indoor distribution solution has the problem of high deployment cost.

[0005] (3) Its existing indoor distribution system network has signal interference problems between multiple systems and multiple frequency bands, resulting in unsatisfactory signal coverage in actual applications. Traditional intermodulation interference testing uses intermodulation tester equipment, which is mainly used in laboratory testing. The test mode is divided into single frequency and two frequency band combination. It is not suitable for frequency band cross-interference testing caused by the combined effect of different frequency bands in the case of multi-carrier frequency (simulating multiple operators sharing a certain platform) network.

[0006] (4) Traditional coverage methods only focus on signal strength and ignore user experience rate, latency and other perception performance, resulting in poor user experience.

[0007] Therefore, how to solve the above problems, achieve full coverage of 5G signals in large commercial buildings, reduce the cost of indoor signal coverage solutions in large commercial buildings, and improve signal stability and user experience are the technical problems that urgently need to be solved. Summary of the Invention

[0008] To address the aforementioned technical problems, the purpose of this application is to provide a method for large-scale deployment of 5G-A LampSite in large commercial buildings, aiming to solve the technical problems mentioned above.

[0009] This application provides a method for large-scale deployment of 5G-A LampSite in large commercial buildings, the method comprising:

[0010] Based on the principle of comprehensive signal coverage, the construction party of the target large commercial building will build shared physical facilities; wherein, the shared physical facilities include shared passive indoor distributed physical bases;

[0011] Each operator deploys its own 5G-A LampSite digital micro-stations in the target large commercial building. After adaptation and conversion, the radio frequency signals output by the 5G-A LampSite digital micro-stations are connected to the passive indoor distributed physical base to build a multi-operator signal source access architecture.

[0012] A multi-band combined intermodulation suppression test platform was used to simulate the simultaneous operation of multiple carrier frequencies and to detect intermodulation interference in the connected network system.

[0013] Based on the detection results, the network system after access is adjusted until the intermodulation interference detection meets the preset detection indicators, and the multi-operator service signal of the 5G-A LampSite digital micro-station is opened.

[0014] Furthermore, the multi-band combined intermodulation suppression test platform includes an industrial control power supply, a 900MHz band transmission module, an 1800MHz band transmission module, a 2100MHz band transmission module, a 2300MHz band transmission module, a 2600MHz band transmission module, a 3500MHz band transmission module, a spectrum module, a combiner, a power supply module, a display module, a logic control and switching module, and test ports. The 900MHz, 1800MHz, 2100MHz, 2300MHz, 2600MHz, and 3500MHz band transmission modules are all connected to the output of the combiner. The input terminal is connected to the output terminal of the combiner, which is connected to the logic control and switching module. The 900MHz band transmission module, 1800MHz band transmission module, 2100MHz band transmission module, 2300MHz band transmission module, 2600MHz band transmission module, 3500MHz band transmission module, spectrum module, power supply module, and display module are respectively connected to the industrial control power supply. The display module, power supply module, and spectrum module are all connected to the logic control and switching module. The test port is led out from the output terminal of the logic control and switching module. The logic control and switching module is used to select two or three frequency band combination modules for combined testing or single frequency band testing.

[0015] Furthermore, the step of adapting and converting the radio frequency signal output from the 5G-A LampSite digital micro-station includes:

[0016] An RF adapter module is installed at the pRRU RF output terminal of the 5G-A LampSite digital micro-station. The RF adapter module sequentially completes signal impedance matching, power calibration and adjustment, and interface frequency band adaptation, converting the digital RF signal output by the 5G-A LampSite digital micro-station into an analog RF signal that is adapted to the coaxial link transmission of the passive indoor distributed physical base.

[0017] Furthermore, the passive indoor distribution physical base includes a POI combining platform, an antenna, a power divider, and a coupler; the POI combining platform, power divider, coupler, and antenna are connected in sequence via feed lines.

[0018] Furthermore, the step of adjusting the network system after access based on the detection results until the intermodulation interference detection meets the preset detection indicators includes:

[0019] Based on the intermodulation interference test results, replace the POI combining platform, power divider, or coupler in the passive indoor distribution physical base that has substandard third-order intermodulation and insufficient port isolation.

[0020] Adjust the pRRU output power of each operator's 5G-A LampSite to ensure that the power after multi-carrier signal combining does not exceed the power capacity of passive devices. At the same time, optimize the signal isolation parameters of each operator's dedicated port on the POI combining platform to reduce signal aliasing interference.

[0021] Check the integrity of the feeder link, replace or repair feeders with excessive VSWR to reduce signal transmission attenuation, until intermodulation interference detection meets the preset detection indicators.

[0022] Furthermore, the perceived performance metrics include user experience rate, latency, and service success rate.

[0023] Furthermore, the shared physical facilities also include communication racks, pipes, and low-voltage electrical shafts within the building, as well as supporting power, lightning protection, and grounding facilities.

[0024] The embodiments of this application have the following technical effects:

[0025] (1) This application adopts a co-construction and sharing model of "unified physical layer + multi-operator access", which fundamentally avoids the huge waste caused by multiple operators repeatedly entering the site and laying cables separately. This is mainly due to the one-time construction of physical facilities such as pipes, cable trays, and indoor signal coverage distribution systems, as well as the significant reduction in hidden costs such as construction coordination and property damage repair.

[0026] (2) This application realizes the fundamental transformation from “each doing their own thing” to “unified platform”, transforming the building construction party from a passive coordinator to an active manager, and realizing the standardized, orderly and full life cycle management of building information infrastructure.

[0027] (3) By adding an RF adapter module to the pRRU output, the incompatibility of the interface and transmission medium between the digital micro base station and the analog passive base network is solved, ensuring stable signal transmission. At the same time, the advantages of the 5G-A LampSite three-level architecture (BBU+RHUB+pRRU) are fully utilized, and the aggregation, splitting and power supply of multiple pRRUs are realized through RHUB, which is suitable for the large-scale deployment needs of large commercial buildings.

[0028] (4) Simulate real working conditions through a multi-band combined intermodulation suppression test platform, detect potential intermodulation interference risks, and make adjustments to ensure stable coexistence of signals from multiple operators and multiple standards.

[0029] (5) This application uses a shared passive indoor distributed physical base as an analog radio frequency transmission carrier shared by multiple operators, which can effectively make up for the coverage shortcomings of pRRU, achieve uniform signal coverage throughout the building, and realize the isolation and combining of signals from multiple operators through its POI combining platform, effectively suppressing intermodulation interference. At the same time, it realizes resource sharing among multiple operators, significantly reducing the deployment and maintenance costs of each operator. It works in conjunction with the 5G-A LampSite three-level architecture to ensure the large-scale, low-cost, full-coverage, and highly stable deployment of 5G-A signals in large commercial buildings.

[0030] (6) This application uses perceived performance indicators to accept the network after it is put into operation, which can improve the user experience. Attached Figure Description

[0031] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a flowchart illustrating a method for large-scale deployment of 5G-A LampSite in a large commercial building, as provided in an embodiment of this application.

[0033] Figure 2 This is a schematic diagram of the structure of the multi-band combined intermodulation suppression test platform provided in the embodiments of this application. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0035] Those skilled in the art will understand that, unless explicitly stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in the specification of this application means the presence of features, integers, steps, operations, elements, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, modules, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any modules and all combinations of one or more associated listed items.

[0036] Those skilled in the art will understand that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0037] Please see Figure 1 This application provides a method for large-scale deployment of 5G-A LampSite in large commercial buildings, the method comprising:

[0038] S1. Based on the principle of comprehensive signal coverage, the construction party of the target large commercial building shall construct shared physical facilities; wherein, the shared physical facilities include shared passive indoor distributed physical bases;

[0039] S2. Each operator deploys its own 5G-A LampSite digital micro-station in the target large commercial building. After the radio frequency signal output by the 5G-A LampSite digital micro-station is adapted and converted, it is connected to the passive indoor distributed physical base to build a multi-operator signal source access architecture.

[0040] S3. Use a multi-band combined intermodulation suppression test platform to simulate the simultaneous operation of multiple carrier frequencies and perform intermodulation interference detection on the network system after access.

[0041] S4. Adjust the network system after access based on the detection results until the intermodulation interference detection meets the preset detection indicators, and open the multi-operator service signal of the 5G-A LampSite digital micro-station.

[0042] S5. Conduct acceptance testing on the network after it is activated based on preset perception performance indicators.

[0043] In step S1, the shared physical facilities are constructed with the core principle of ensuring no blind spots and uniform coverage throughout the large commercial building area. The building construction party plans, invests, and constructs the facilities in a unified manner to avoid resource waste and construction conflicts caused by individual construction by different operators. The shared passive indoor distribution physical base serves as an analog radio frequency transmission link shared by multiple operators. It is the fundamental carrier for the subsequent 5G-A (5G-Advanced) signal transmission and coverage of all operators. Its specific components include a POI combining platform (POINT OF INTERFACE, multi-system combining platform), a power divider, a coupler, a low-loss coaxial feeder, and a coverage antenna. The functions of each component are as follows: The POI combining platform is used to isolate and combine signals from multiple operators, avoiding premature aliasing interference; the power divider is used to evenly distribute the combined signal power and perform multi-path expansion to adapt to the coverage requirements of multiple areas; the coupler is used to couple low-power signals from the main link to achieve splitting, flexibly adapting to the coverage strength requirements of different areas; the feeder is used for the transmission of radio frequency signals, and the selection of a low-loss model can effectively reduce the attenuation during signal transmission; the antenna is used to radiate radio frequency signals to the target coverage area, ensuring uniform signal coverage throughout the entire area.

[0044] Meanwhile, during the construction process in step S1, it is necessary to combine the specific floor layout, wall partition distribution, and distribution of densely populated areas (such as atriums, shops, and elevator lobbies) of the target large commercial building to plan the locations of passive devices (POI combining platform, power divider, coupler), antenna placement, and feeder link routes. It is important to avoid signal obstruction areas and prevent signal blind spots and weak coverage areas, so as to ensure that the completed passive indoor distribution physical base can adapt to the business needs of multiple users concurrently during peak hours in large commercial buildings.

[0045] In step S2, the 5G-A LampSite digital micro-sites deployed by each operator adopt a three-level distributed architecture consisting of a BBU (Building Baseband Unit), an RHUB (Remote Hub), and a pRRU (Pico Remote Radio Unit). This architecture is suitable for the large-scale deployment needs of large commercial buildings with multiple locations and wide coverage. Since the 5G-A LampSite digital micro-station is a digital active system using digital fiber optic + network cable transmission, while the passive indoor distribution physical base constructed in step S1 is an analog RF combining system using coaxial feeder transmission, the two systems are not compatible in terms of their native transmission media, interface protocols, and signal characteristics. Direct connection would lead to excessive signal transmission loss and unstable network. Therefore, in step S2, an RF adapter module needs to be installed at the RF output end of the pRRU to complete the signal adaptation and conversion. The specific conversion includes three aspects: First, achieving signal impedance matching to ensure no reflection loss during signal transmission and guarantee signal transmission quality; second, performing power calibration and adjustment to match the signal power output of the pRRU with the power tolerance of the POI combining platform port, avoiding excessive power burning out components or insufficient power affecting coverage; and third, completing interface frequency band adaptation to be compatible with the 5G-A Sub-6G wideband characteristics, converting the RF signal output by the digital micro-station into an analog RF signal compatible with the coaxial link transmission of the passive indoor distribution physical base.

[0046] After the adaptation and conversion is completed, in step S2, each operator connects its adapted signal to the dedicated independent port of the POI combining platform in the shared passive indoor distribution physical base. Each operator occupies a dedicated port to avoid interference caused by the premature mixing of signals from multiple operators. In the end, a multi-operator signal source access architecture is constructed, which features independent signal sources from multiple operators, unified aggregation access, and shared coverage by a single set of passive base networks.

[0047] Before deploying their respective 5G-A LampSite digital micro base stations in target large commercial buildings, each operator first collects various layout parameters of the shared passive indoor distributed physical base. Based on the link distribution, port configuration, antenna coverage, and device deployment of the passive system, and combined with the building coverage requirements, they complete the deployment zoning plan for active equipment, determining the number of devices and the passive link access relationship. Then, they conduct simulation verification of the preliminary site selection of active equipment, optimize the site deployment based on the verification results, and make the overall layout of active equipment compatible with the existing passive system layout. Finally, they determine a dedicated deployment plan based on the networking requirements of each operator, clarifying the access links and networking requirements.

[0048] It should be understood that while the 5G-A LampSite, as the core of the signal source, has micro far-end radio units (pRRUs) with certain penetration capabilities, large commercial buildings have many floors, dense wall partitions, and complex signal propagation paths in some areas (such as elevator lobbies, underground areas, and corner areas). Relying solely on distributed pRRU deployment can easily lead to uneven signal coverage, local weak coverage, or blind spots, failing to meet the requirements for high-quality coverage across the entire area. Furthermore, large-scale deployment using only pRRUs requires a large number of pRRU devices, significantly increasing deployment costs. This application, by using a shared passive indoor distributed physical base as an analog radio frequency transmission carrier shared by multiple operators, can effectively compensate for the coverage shortcomings of pRRUs, achieving uniform signal coverage across the entire building. Through its POI combining platform, it can achieve isolated combining of signals from multiple operators, effectively suppressing intermodulation interference, while simultaneously enabling resource sharing among multiple operators, significantly reducing the deployment and maintenance costs for each operator. Working in conjunction with the 5G-A LampSite three-tier architecture, it ensures the achievement of the goal of large-scale, low-cost, full-coverage, and highly stable 5G-A signal deployment in large commercial buildings.

[0049] The core of step S3 is passive intermodulation interference (PIM). This interference arises because when signals from multiple operators and multiple carrier frequencies are transmitted through the passive devices (POI combining platform, power divider, coupler, feeder) of the passive indoor distribution physical base constructed in step S1, the nonlinear characteristics of these passive devices generate third-order intermodulation spurious components. If these spurious components fall into the uplink receiving frequency band of each system, they will increase the system noise floor and reduce uplink sensitivity, leading to network speed degradation, connection anomalies, dropped calls, and other problems, affecting user experience. Therefore, in step S3, a multi-band combined intermodulation suppression test platform is needed to accurately capture intermodulation interference values, while simultaneously detecting the isolation of each port and crosstalk between signals from multiple operators. This comprehensive investigation of potential interference issues across the entire system provides a precise basis for subsequent system adjustments in step S4.

[0050] In step S4, the system adjusts based on the intermodulation interference detection results from step S3, specifically addressing interference and link issues discovered during the detection process until the intermodulation interference detection meets preset detection indicators. Once the intermodulation interference detection meets the preset indicators, all operators' 5G-A full-service signals are uniformly activated, enabling stable coexistence and non-interference of 5G-A, 4G multi-standard, and multi-operator networks within the same passive base network. This ensures a superior network experience for users of all operators and achieves the goal of multi-system coexistence and coverage.

[0051] In step S5, network acceptance is performed using a pre-defined perception performance index system as the standard to complete the closed loop of the entire deployment process and ensure that the deployment effect meets design requirements and commercial standards.

[0052] The embodiments of this application have the following technical effects:

[0053] (1) This application adopts a co-construction and sharing model of "unified physical layer + multi-operator access", which fundamentally avoids the huge waste caused by multiple operators repeatedly entering the site and laying cables separately. This is mainly due to the one-time construction of physical facilities such as pipes, cable trays, and indoor signal coverage distribution systems, as well as the significant reduction in hidden costs such as construction coordination and property damage repair.

[0054] (2) This application realizes the fundamental transformation from “each doing their own thing” to “unified platform”, transforming the building construction party from a passive coordinator to an active manager, and realizing the standardized, orderly and full life cycle management of building information infrastructure.

[0055] (3) By adding an RF adapter module to the pRRU output, the incompatibility of the interface and transmission medium between the digital micro base station and the analog passive base network is solved, ensuring stable signal transmission. At the same time, the advantages of the 5G-A LampSite three-level architecture (BBU+RHUB+pRRU) are fully utilized, and the aggregation, splitting and power supply of multiple pRRUs are realized through RHUB, which is suitable for the large-scale deployment needs of large commercial buildings.

[0056] (4) Simulate real working conditions through a multi-band combined intermodulation suppression test platform, detect potential intermodulation interference risks, and make adjustments to ensure stable coexistence of signals from multiple operators and multiple standards.

[0057] (5) This application uses a shared passive indoor distributed physical base as an analog radio frequency transmission carrier shared by multiple operators, which can effectively make up for the coverage shortcomings of pRRU, achieve uniform signal coverage throughout the building, and realize the isolation and combining of signals from multiple operators through its POI combining platform, effectively suppressing intermodulation interference. At the same time, it realizes resource sharing among multiple operators, significantly reducing the deployment and maintenance costs of each operator. It works in conjunction with the 5G-A LampSite three-level architecture to ensure the large-scale, low-cost, full-coverage, and highly stable deployment of 5G-A signals in large commercial buildings.

[0058] (6) This application uses perceived performance indicators to accept the network after it is put into operation, which can improve the user experience.

[0059] like Figure 2As shown, in one embodiment, the multi-band combined intermodulation suppression test platform includes an industrial control power supply, a 900MHz band transmission module, an 1800MHz band transmission module, a 2100MHz band transmission module, a 2300MHz band transmission module, a 2600MHz band transmission module, a 3500MHz band transmission module, a spectrum module, a combiner, a power supply module, a display module, a logic control and switching module, and test ports. The 900MHz, 1800MHz, 2100MHz, 2300MHz, 2600MHz, and 3500MHz band transmission modules are all connected to the combiner. The input terminal is connected, and the output terminal of the combiner is connected to the logic control and switching module. The 900MHz band transmission module, 1800MHz band transmission module, 2100MHz band transmission module, 2300MHz band transmission module, 2600MHz band transmission module, 3500MHz band transmission module, spectrum module, combiner, power supply module, and display module are respectively connected to the industrial control power supply. The display module, power supply module, and spectrum module are all connected to the logic control and switching module. The test port is led out from the output terminal of the logic control and switching module. The logic control and switching module is used to select two or three frequency band combination modules for combined testing or single frequency band testing.

[0060] It should be noted that, given the multi-carrier coexistence characteristic of indoor distributed antenna systems (DAS) networks, existing DAS systems suffer from inter-system and multi-frequency band signal interference, resulting in unsatisfactory signal coverage in practical applications. To address this multi-system and multi-frequency band signal interference problem, this invention proposes a multi-system intermodulation interference detection technology, achieving a new breakthrough in indoor DAS system engineering testing technology. This technology simulates multi-carrier, high-power engineering environments to conduct intermodulation interference testing of indoor DAS systems, developing a test platform for intermodulation suppression using six single-band, two-band, or three-band combinations and applying it in engineering testing. Traditional intermodulation interference testing uses intermodulation testing equipment, primarily used in laboratory testing. The testing modes are limited to single-frequency or two-band combinations, which are unsuitable for testing cross-band interference caused by the combined effects of different frequency bands in multi-carrier networks (simulating multiple operators sharing a single platform). This invention, by developing a novel intermodulation detection device capable of simulating the combined effects of multiple frequencies in actual engineering environments, effectively solves the problem of system signal intermodulation interference detection, laying the foundation for subsequent signal activation.

[0061] In one embodiment, the step of adapting and converting the radio frequency signal output from the 5G-A LampSite digital micro-station includes:

[0062] An RF adapter module is installed at the pRRU RF output terminal of the 5G-A LampSite digital micro-station. The RF adapter module sequentially completes signal impedance matching, power calibration and adjustment, and interface frequency band adaptation, converting the digital RF signal output by the 5G-A LampSite digital micro-station into an analog RF signal that is adapted to the coaxial link transmission of the passive indoor distributed physical base.

[0063] In this embodiment, the signal impedance matching is used to ensure no reflection loss during signal transmission and to guarantee signal transmission quality; the power calibration adjustment is used to match the signal power output by the pRRU with the power tolerance of the POI combining platform port, so as to avoid excessive power burning out the device or insufficient power affecting the coverage effect; the interface frequency band adaptation is used to be compatible with the 5G-A Sub-6G wideband characteristics, so as to ensure that the converted analog radio frequency signal can be stably connected to the passive indoor distribution physical base.

[0064] This application embodiment adds an RF adapter module to the pRRU RF output terminal of the 5G-A LampSite digital micro-station. Through this module, signal impedance matching, power calibration and adjustment, and interface frequency band adaptation are completed sequentially. The digital RF signal output by the pRRU is converted into an analog RF signal adapted to the coaxial link transmission of the passive indoor distribution physical base. This effectively solves the incompatibility problem between the 5G-A LampSite digital active system and the passive indoor distribution physical base in terms of transmission medium and signal form. It ensures that the RF signal transmission has no reflection loss, power adaptation, and frequency band compatibility, ensuring stable and efficient signal transmission. It realizes the smooth connection between 5G-A LampSite and passive indoor distribution physical base, laying the foundation for multi-operator signal source access and subsequent network coverage.

[0065] In one embodiment, the step of adjusting the network system after access based on the detection results until the intermodulation interference detection meets the preset detection index includes:

[0066] Based on the intermodulation interference test results, replace the POI combining platform, power divider, or coupler in the passive indoor distribution physical base that has substandard third-order intermodulation and insufficient port isolation.

[0067] Adjust the pRRU output power of each operator's 5G-A LampSite to ensure that the power after multi-carrier signal combining does not exceed the power capacity of passive devices. At the same time, optimize the signal isolation parameters of each operator's dedicated port on the POI combining platform to reduce signal aliasing interference.

[0068] Check the integrity of the feeder link, replace or repair feeders with excessive VSWR to reduce signal transmission attenuation, until intermodulation interference detection meets the preset detection indicators.

[0069] In this embodiment of the application, the preset detection indicators include: intermodulation interference value of each frequency band ≤ -153dBm, feeder VSWR ≤ 1.5, isolation of each operator-specific port of the POI combining platform ≥ 30dB, third-order intermodulation of passive devices ≤ -160dBc, total power after combining multi-carrier signals ≤ 40dBm, and signal transmission attenuation ≤ 0.5dB / 100m.

[0070] This application addresses the issue by replacing third-order intermodulation and port isolation compliant POI combining platforms, power dividers, and couplers. It also adjusts the pRRU output power of each operator's 5G-A LampSite to control the power of multi-carrier signals after combining to ensure it does not exceed the power capacity of passive devices. Furthermore, it optimizes the signal isolation parameters of each operator's dedicated port on the POI combining platform to reduce signal aliasing interference. Simultaneously, it detects the integrity of the feeder link and replaces or modifies the connectors of feeders with excessive VSWR to reduce signal transmission attenuation. This effectively suppresses intermodulation interference between multi-operator, multi-carrier signals, ensures signal transmission stability, and prevents passive devices from being damaged due to power overload.

[0071] In one embodiment, the perceived performance metrics include user experience rate, latency, and service success rate.

[0072] This application upgrades the acceptance criteria from the traditional signal strength (RSPP) to a perception performance indicator system centered on user experience rate, latency, and service success rate. This system can more intuitively and comprehensively reflect the actual network operation quality and the real usage effect of terminals, ensuring the overall operation performance of the 5G-A network after activation and achieving accurate quantitative acceptance of network deployment effects.

[0073] In one embodiment, the shared physical facilities also include in-building communication racks, pipes, and low-voltage electrical shaft spaces, as well as supporting power, lightning protection, and grounding facilities.

[0074] This application aims to further reduce total social costs and construction disruption by incorporating the building's communication racks, pipes, and low-voltage electrical shafts, along with supporting power, lightning protection, and grounding facilities, into shared physical facilities and having them constructed uniformly by the building developer.

[0075] It should be noted that the technical solutions in the embodiments of this specification, if involving the processing of personal information, will all be processed under the premise of having a legal basis (such as obtaining the consent of the personal information subject), and will only be processed within the scope stipulated or agreed. The collection, storage, use, processing, transmission, provision, and presentation of related information all comply with the provisions of relevant laws and regulations, do not infringe on the privacy of others, and do not violate public order and good morals.

[0076] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, apparatus, article, or method. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element.

[0077] The above description is only a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural changes made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A method for large-scale deployment of 5G-A LampSite in large commercial buildings, characterized in that, The method includes: Based on the principle of comprehensive signal coverage, the construction party of the target large commercial building will build shared physical facilities; wherein, the shared physical facilities include shared passive indoor distributed physical bases; Each operator deploys its own 5G-A LampSite digital micro-stations in the target large commercial building. After adaptation and conversion, the radio frequency signals output by the 5G-A LampSite digital micro-stations are connected to the passive indoor distributed physical base to build a multi-operator signal source access architecture. A multi-band combined intermodulation suppression test platform was used to simulate the simultaneous operation of multiple carrier frequencies and to detect intermodulation interference in the connected network system. Based on the detection results, the network system after access is adjusted until the intermodulation interference detection meets the preset detection indicators, and the multi-operator service signal of the 5G-A LampSite digital micro-station is opened. The network is then tested based on preset perception performance indicators.

2. The method for large-scale deployment of 5G-A LampSite in commercial buildings according to claim 1, characterized in that, The multi-band combined intermodulation suppression test platform includes an industrial control power supply, a 900MHz band transmission module, an 1800MHz band transmission module, a 2100MHz band transmission module, a 2300MHz band transmission module, a 2600MHz band transmission module, a 3500MHz band transmission module, a spectrum module, a combiner, a power supply module, a display module, a logic control and switching module, and test ports. The 900MHz, 1800MHz, 2100MHz, 2300MHz, 2600MHz, and 3500MHz band transmission modules are all connected to the input terminal of the combiner. The output of the combiner is connected to the logic control and switching module. The 900MHz band transmission module, 1800MHz band transmission module, 2100MHz band transmission module, 2300MHz band transmission module, 2600MHz band transmission module, 3500MHz band transmission module, spectrum module, power supply module, and display module are respectively connected to the industrial control power supply. The display module, power supply module, and spectrum module are all connected to the logic control and switching module. The test port is led out from the output of the logic control and switching module. The logic control and switching module is used to select two or three frequency band combination modules for combined testing or single frequency band testing.

3. The method for large-scale deployment of 5G-A LampSite in large commercial buildings according to claim 1, characterized in that, The steps for adapting and converting the radio frequency signal output from the 5G-A LampSite digital micro-station include: An RF adapter module is installed at the pRRU RF output terminal of the 5G-A LampSite digital micro-station. The RF adapter module sequentially completes signal impedance matching, power calibration and adjustment, and interface frequency band adaptation, converting the digital RF signal output by the 5G-A LampSite digital micro-station into an analog RF signal that is adapted to the coaxial link transmission of the passive indoor distributed physical base.

4. The method for large-scale deployment of 5G-A LampSite in large commercial buildings according to claim 1, characterized in that, The passive indoor distribution physical base includes a POI combining platform, an antenna, a power divider, and a coupler; the POI combining platform, power divider, coupler, and antenna are connected in sequence via feed lines.

5. The method for large-scale deployment of 5G-A LampSite in large commercial buildings according to claim 4, characterized in that, The step of adjusting the network system after access based on the detection results until the intermodulation interference detection meets the preset detection index includes: Based on the intermodulation interference test results, replace the POI combining platform, power divider, or coupler in the passive indoor distribution physical base that has substandard third-order intermodulation and insufficient port isolation. Adjust the pRRU output power of each operator's 5G-A LampSite to ensure that the power after multi-carrier signal combining does not exceed the power capacity of passive devices. At the same time, optimize the signal isolation parameters of each operator's dedicated port on the POI combining platform to reduce signal aliasing interference. Check the integrity of the feeder link, replace or repair feeders with excessive VSWR to reduce signal transmission attenuation, until intermodulation interference detection meets the preset detection indicators.

6. The method for large-scale deployment of 5G-A LampSite in large commercial buildings according to claim 1, characterized in that, The perceived performance metrics include user experience rate, latency, and service success rate.

7. The method for large-scale deployment of 5G-A LampSite in large commercial buildings according to claim 1, characterized in that, The shared physical facilities also include communication racks, pipes, and low-voltage electrical shafts within the building, as well as supporting power, lightning protection, and grounding facilities.

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