Lightweight communication terminal for OTA performance test verification

Abstract

The invention discloses a lightweight communication terminal for OTA performance test verification, which comprises a terminal shell and a terminal mainboard, the terminal shell is provided with the following mounting ports: a GSM antenna mounting port, an LTE antenna mounting port, a 5G NR antenna mounting port and an SIM card mounting port, each mounting port is correspondingly provided with a detachable folding external antenna or SIM card, and the terminal mainboard is provided with a communication port. The terminal mainboard comprises a baseband chip management module, a radio frequency chip management module, a power management module and a peripheral management module. According to the invention, the transmitting system is cut, the quality of the transmitted signal is improved, the influence of electromagnetic coupling in the terminal is reduced, and the antenna polarization mode can be adjusted to meet the positioning system requirements of different darkrooms.

Description

Technical Field

[0001] The invention relates to a lightweight communication terminal for OTA performance testing and verification. Background Art

[0002] In order to ensure the safe and reliable communication quality of terminal equipment, comprehensive testing of products is required. Compared with RF conduction testing, Over-The-Air (OTA) testing simulates the scenario of signal transmission in the air, comprehensively considering factors such as internal radiation interference, structural design, and RF chip transceiver algorithm of the product, and evaluating the performance of the antenna of the device under test, including TRP (Total Radiated Power) and TIS (Total Isotropic Sensitivity), which truly reflects the transmission and reception performance of wireless terminals in various complex actual use environments. Thanks to the application of Multiple Input Multiple Output (MIMO) technology and millimeter wave technology, 5G terminals integrate more and more transmission formats, which also brings challenges to terminal testing and certification. The OTA darkroom, which originally had a single function, has gradually been refined and developed into near-field, compact field, plane wave and other systems to meet the testing needs of different products. According to different test sites, OTA performance test methods can be divided into two categories: full anechoic chamber method and reverberation chamber method. The full anechoic chamber method is the mainstream testing solution in the industry, which can be further divided into combined axis system and distributed axis system.

[0003] As a commonly used external quality control method, proficiency verification is an important means to monitor laboratory testing capabilities and evaluate the reliability of measurement data. It is mainly carried out through inter-laboratory comparison. In order to ensure the normal implementation of proficiency verification activities, test samples need to meet strict data consistency requirements. In actual OTA performance test certification, common terminal products include mobile phones, wireless CPE, smart home appliances, etc. Smart home appliances are large in size, inconvenient to transport, and have poor performance stability. They are not suitable for use as proficiency verification samples for OTA performance testing. Mobile phones and CPE are widely used terminal products with small size. They are often used as "golden machines" for internal testing in the communication testing industry, and are also selected by proficiency verification organizations as test comparison samples.

[0004] The disadvantages of using mobile terminal products as comparison samples for OTA performance testing are mainly reflected in the following three aspects.

[0005] First, mobile phone terminals are prone to polluting the electromagnetic environment of the OTA darkroom during the test. Mobile phone terminals integrate up to 10 built-in antennas, including microstrip patch antennas, slot antennas, IFA antennas, inverted L antennas, PIFA and ceramic antennas, which are almost all over the product. The gain of the built-in antenna is low, and the signal quality and transmission distance are easily affected by the surrounding electromagnetic environment. The internal circuit structure of the mobile phone terminal is complex, and multiple antennas are concentrated inside the device, which makes the electromagnetic environment of the OTA darkroom easily polluted during the test, increasing the uncertainty in the test process.

[0006] Second, it is difficult for mobile phone terminals to adjust the polarization mode of the built-in antenna. Because the polarization mode of the built-in antenna of the mobile phone terminal is difficult to determine, the three-dimensional coordinates of the combined axis full radio wave darkroom and the distributed axis full radio wave darkroom are different for the positioning of the EUT antenna polarization mode, which can easily introduce test errors and cause deviations in the results during the OTA performance test capability verification process. The built-in antenna is generally fixed to the edge of the mobile phone case. In the free space state, the test standard reduces the deviation between the EUT phase center and the rotation axis center by specifying the three-dimensional coordinates of the mobile phone terminal. However, there are differences in the three-dimensional coordinates of the darkroom of the combined axis system and the distributed axis system, which brings difficulties to the verification between different systems.

[0007] Third, mobile phone terminals are prone to electromagnetic coupling, which affects the stability of the test. The multi-mode baseband chip used in 5G mobile phone terminals integrates network standards including 2G / 3G / 4G / 5G / Wi F i / Bluetooth. During the capability verification activities, the test prototype needs to be transferred multiple times. The bumps and vibrations during transportation can easily cause unexpected coupling between the static electricity and magnetic field inside the mobile phone terminal and the antenna, affecting the stability of the test prototype.

[0008] CPE terminal products are mainly used to convert wireless signals or wired broadband signals into LAN signals for use by customer terminal devices. The main disadvantages of using them as test and comparison samples are: CPE integrates multiple transmission formats, with up to 10 external antennas, low isolation between antennas, and different communication modules are prone to mutual interference when working at the same time, affecting communication quality. Moreover, CPE products generally require a power adapter to work, and the introduction of a power supply line will emit clutter during the OTA performance test process, polluting the electromagnetic environment of the darkroom.

[0009] For the above reasons, it is very difficult to select terminal samples with qualified uniformity and stability data for laboratory comparison activities. At present, most proficiency verification organizations use single samples for circulation. If a sample fails, it needs to be returned to the factory for repair and verification, which delays the test process. Some organizations also choose to use multiple mobile terminal samples for delivery. Strictly speaking, it is difficult to meet the uniformity requirements between multiple prototypes. Instead, an attenuation compensation value is artificially specified for each prototype to achieve an approximately uniform state. Summary of the invention

[0010] The purpose of the present invention is to provide a lightweight communication terminal for OTA performance testing and verification, which tailors the transmission format, improves the quality of the transmitted signal, reduces the influence of electromagnetic coupling inside the terminal, and can adjust the antenna polarization mode to meet the positioning system requirements of different darkrooms.

[0011] The technical solution of the present invention is as follows:

[0012] A lightweight communication terminal for OTA performance test verification, comprising a terminal housing and a terminal mainboard, wherein the terminal housing is provided with the following installation ports: a GSM antenna installation port, an LTE antenna installation port, a 5G NR antenna installation port, and a SIM card installation port, and each installation port is correspondingly installed with a detachable foldable external antenna or a SIM card, and the terminal mainboard comprises a baseband chip management module, a radio frequency chip management module, a power management module, and a peripheral management module, wherein:

[0013] The baseband chip management module includes a baseband chip for controlling and managing tasks and executing each layer of communication protocols, a channel encoder for channel coding and encrypting service information and control information, a digital signal processor for adjusting the power and frequency of the signal, and a modem for GMSK modulation or demodulation of the signal to realize the conversion between the baseband signal and the radio frequency signal;

[0014] The RF chip management module includes a RF chip, a power amplifier, a filter, a duplexer, a SAW filter and an antenna switch, and is divided into a transmitting channel and a receiving channel. In the transmitting channel, the RF chip modulates the transmitting baseband signal into a transmitting intermediate frequency signal, and the intermediate frequency signal is converted into a RF signal suitable for transmission on a wireless channel after being acted upon by the power amplifier and the filter, and then converted into an electromagnetic wave through an antenna and transmitted. In the receiving channel, the antenna converts the electromagnetic wave sent by the base station into a weak current signal, which is sent to the duplexer or the SAW filter through the antenna switch to filter out useless clutter and obtain a RF signal, which is then demodulated and converted into baseband information by the RF chip and the modem;

[0015] The power management module is provided with a battery for powering the communication terminal, avoiding the clutter problem introduced by the power cord of the power adapter during the OTA performance test and reducing the electromagnetic pollution in the darkroom;

[0016] The peripheral management module includes an antenna RF port, a SIM card port, and a power charging port corresponding to the various installation ports of the terminal housing. The antenna RF port is used to connect to a corresponding detachable foldable external antenna, the SIM card port is used to insert a test white card to establish communication between the terminal and the base station, and the power charging port is used to charge the battery of the power management module and to connect to a computer for terminal debugging.

[0017] The baseband chip management module of the present invention performs lightweight cutting on complex and redundant network standards, retaining only the GSM, FDD LTE, TD-LTE, and 5G NR network standards commonly used in OTA performance testing, and expanding the space for circuit routing spacing, which can greatly reduce terminal power consumption and internal electromagnetic interference problems, and better meet the capability verification requirements of OTA performance testing, so that the verification and comparison results are more accurate. The present invention designs independent antenna ports for GSM, LTE, and 5G NR network standards, and adopts a detachable foldable external antenna. Only a single antenna is allowed to connect to the terminal during each test, which greatly improves the antenna isolation and takes into account the antenna beam space coverage, reducing the antenna coupling problem during OTA performance testing. And the terminal antenna polarization mode can be simply and conveniently adjusted to better match the positioning system requirements of the combined axis darkroom and the distributed axis darkroom.

[0018] The present invention also has the following preferred design:

[0019] The power management module of the present invention adopts a lithium battery power supply system, including a lithium battery charging module, a lithium battery protection module and a power switching circuit, wherein:

[0020] The lithium battery charging module adopts a constant current or constant voltage linear charger, and automatically terminates the charging cycle when the charging current drops to 1 / 10 of the set value after reaching the final floating charge voltage;

[0021] The lithium battery protection module includes a control IC, a MOSFET switch tube, a fuse, a resistor and a capacitor. When the lithium battery voltage or the loop current exceeds a specified value, the control IC turns off the MOSFET switch tube and disconnects the lithium battery from the external circuit.

[0022] The present invention uses a built-in battery to power the communication terminal. The power switching circuit is used to switch the system power supply to the external power supply when the communication terminal is connected to the external power supply, which is convenient for debugging and troubleshooting the communication terminal.

[0023] The baseband chip management module and the radio frequency chip management module of the present invention are packaged together and provide a separate packaging interface, which can improve the signal quality of the communication terminal.

[0024] The communication terminal of the present invention supports the disassembly and replacement of the mainboard, which can provide convenience for screening test comparison samples that meet the uniformity and stability requirements, and greatly reduces the screening cost.

[0025] The terminal housing of the present invention is provided with a working indicator light for indicating the working status of the communication terminal.

[0026] The radio frequency front end of the radio frequency management module of the present invention supports MIMO, namely Multiple-Input Multiple-Output.

[0027] The GSM antenna mounting port, the LTE antenna mounting port, and the 5G NR antenna mounting port of the present invention are evenly distributed on the terminal housing.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The baseband chip management module of the present invention performs lightweight cutting of complex and redundant network standards, retaining only the GSM, FDD LTE, TD-LTE, and 5G NR network standards commonly used in OTA performance testing, and expanding the space for circuit wiring spacing, which can greatly reduce terminal power consumption and internal electromagnetic interference problems, better meet the capability verification requirements of OTA performance testing, and make the verification and comparison results more accurate.

[0030] 2. The present invention designs independent antenna ports for GSM, LTE, and 5G NR network standards, and adopts a detachable foldable external antenna. Only a single antenna is allowed to connect to the terminal during each test, which greatly improves the antenna isolation and takes into account the antenna beam space coverage, reducing the antenna coupling problem during OTA performance testing. In addition, the terminal antenna polarization mode can be adjusted simply and conveniently to better match the positioning system requirements of the combined axis darkroom and the distributed axis darkroom.

[0031] 3. The present invention adopts a built-in battery to power the communication terminal, avoiding the clutter problem introduced by the power cord of the power adapter during the OTA performance test and reducing the electromagnetic pollution in the darkroom.

[0032] 4. In the present invention, the baseband chip management module performs lightweight cutting of complex and redundant network standards, and only retains the GSM, FDD LTE, TD-LTE, and 5G NR network standards commonly used in OTA performance testing, thereby reducing the occupied volume of the terminal motherboard. Therefore, the power management module adopts a rechargeable large-capacity lithium battery, which greatly enhances the terminal's endurance, meets the laboratory's needs for multiple repetitive tests on the terminal's OTA performance, and enhances the reliability of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1This is an appearance diagram of a lightweight communication terminal for OTA performance testing and verification provided by the present invention.

[0034] Figure 2 A schematic diagram of the working principle of a mainboard of a lightweight communication terminal for OTA performance testing and verification provided by the present invention;

[0035] Figure 3 It is a schematic diagram of the test configuration of the combined axis full anechoic chamber system in free space in the embodiment;

[0036] Figure 4 Schematic diagram of the test configuration of the distributed axis full anechoic chamber system in free space in the embodiment.

[0037] Description of reference numerals:

[0038] 1-Terminal housing; 2-GSM antenna installation port; 3-LTE antenna installation port; 4-5G NR antenna installation port; 5-SIM card installation port; 6-Working indicator light; 7-Power charging port; 8-Removable foldable external antenna. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the present invention more obvious, the exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments of the present invention, and it should be understood that the present invention is not limited to the exemplary embodiments described herein. Based on the embodiments of the present invention described in the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the protection scope of the present invention.

[0040] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0041] It should be understood that the present invention can be implemented in different forms and should not be interpreted as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to make the disclosure thorough and complete and to fully convey the scope of the present invention to those skilled in the art.

[0042] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present invention. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0043] In order to fully understand the present invention, a detailed structure will be proposed in the following description to illustrate the technical solution proposed by the present invention. The optional embodiments of the present invention are described in detail as follows, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0044] like Figure 1 As shown, a lightweight communication terminal for OTA performance test verification includes a terminal housing 1 and a terminal mainboard, and the terminal housing is provided with the following mounting ports: a GSM antenna mounting port 2, an LTE antenna mounting port 3, a 5G NR antenna mounting port 4, and a SIM card mounting port 5, and each mounting port is correspondingly installed with a detachable foldable external antenna 8 or a SIM card, such as Figure 2 The terminal mainboard shown includes a baseband chip management module, a radio frequency chip management module, a power management module and a peripheral management module, wherein:

[0045] The baseband chip management module includes a baseband chip for controlling and managing tasks and executing each layer of communication protocols, a channel encoder for channel coding and encrypting service information and control information, a digital signal processor for adjusting the power and frequency of the signal, and a modem for GMSK modulation or demodulation of the signal to realize the conversion between the baseband signal and the radio frequency signal, wherein the channel encoder uses convolution coding, FIRE code, parity check code, interleaving and burst pulse formatting and other technologies;

[0046] The RF chip management module includes a RF chip, a power amplifier, a filter, a duplexer, a SAW filter and an antenna switch, and is divided into a transmitting channel and a receiving channel. In the transmitting channel, the RF chip modulates the transmitting baseband signal into a transmitting intermediate frequency signal, and the intermediate frequency signal is converted into a RF signal suitable for transmission on a wireless channel after being acted upon by the power amplifier and the filter, and then converted into an electromagnetic wave through an antenna and transmitted. In the receiving channel, the antenna converts the electromagnetic wave sent by the base station into a weak current signal, which is sent to the duplexer or the SAW filter through the antenna switch to filter out useless clutter and obtain a RF signal, which is then demodulated and converted into baseband information by the RF chip and the modem;

[0047] The power management module is provided with a battery for supplying power to the communication terminal;

[0048] The peripheral management module includes an antenna RF port, a SIM card port, and a power charging port corresponding to the various installation ports of the terminal housing. The antenna RF port is used to connect to a corresponding detachable foldable external antenna, the SIM card port is used to insert a test white card to establish communication between the terminal and the base station, and the power charging port is used to charge the battery of the power management module and to connect to a computer for terminal debugging.

[0049] In one embodiment, the power management module adopts a lithium battery power supply system, including a lithium battery charging module, a lithium battery protection module and a power switching circuit, wherein:

[0050] The lithium battery charging module adopts a constant current or constant voltage linear charger, and automatically terminates the charging cycle when the charging current drops to 1 / 10 of the set value after reaching the final floating charge voltage;

[0051] The lithium battery protection module includes a control IC, a MOSFET switch tube, a fuse, a resistor and a capacitor. When the lithium battery voltage or the loop current exceeds a specified value, the control IC turns off the MOSFET switch tube and disconnects the lithium battery from the external circuit.

[0052] The power switching circuit is used to switch the system power supply to the external power supply when the communication terminal is connected to the external power supply, such as connecting to the USB interface of a computer, so as to facilitate debugging and troubleshooting of the communication terminal.

[0053] In one embodiment, the baseband chip management module and the radio frequency chip management module are packaged together to provide a separate packaging interface, which can improve the signal quality of the communication terminal.

[0054] In one embodiment, a working indicator light 6 for indicating the working status of the communication terminal is installed on the terminal housing 1.

[0055] In one embodiment, the RF front end of the RF management module supports MIMO and provides independent antenna ports for GSM, LTE, and 5G NR network standards, and the GSM antenna installation port, LTE antenna installation port, and 5G NR antenna installation port are evenly distributed on the terminal housing.

[0056] The communication terminal of the present invention supports the disassembly and replacement of the mainboard, which can provide convenience for screening test comparison samples that meet the uniformity and stability requirements, and greatly reduces the screening cost.

[0057] Experimental application description:

[0058] The standard YD / T 1484.1-2023 "Measurement Methods for Space RF Radiated Power and Receiver Performance of Wireless Terminals Part 1: General Requirements" divides terminal equipment into portable wireless terminals (Class A, Class B, Class C) and wireless data terminals (Class D, Class E). The representative terminal type of the former is a mobile phone, and the representative terminal type of the latter is a laptop computer. In free space mode, for portable wireless terminal types, the center of the three-dimensional rotation axis is the EUT handset position; for wireless data terminals, the center of the three-dimensional rotation axis is the geometric center of the EUT. Due to differences in manufacturing processes, the polarization mode of the built-in antennas of mobile phones and laptops is difficult to determine, which leads to differences in the positioning of the EUT antenna polarization mode in the three-dimensional coordinates of the combined axis full radio wave anechoic chamber and the distributed axis full radio wave anechoic chamber. In the process of conducting capability verification, the difference in the positioning of the EUT by these two chambers will introduce test errors, resulting in outliers in the test results of some laboratories.

[0059] In TRP (Total Radiated Power) and TIS (Total Isotropic Receiver Sensitivity) tests, the communication antenna is mainly used to communicate with the EUT, while the measurement antenna is used to measure the power of the EUT or determine the strength of the downlink signal. The measurement antenna has two polarization directions, namely the horizontal direction (abbreviated as H) and the vertical direction (abbreviated as V), and both polarization directions need to be measured. According to the polarization direction of the EUT antenna, switch between the horizontal and vertical directions.

[0060] In the spherical coordinate system, the phi angle (φ) represents the angle between the projection point of the measurement point on the XY plane and the +X axis, and the theta angle (θ) represents the angle between the measurement point and the +Z axis, where the direction of the EUT antenna is the Z axis, and the XY plane is determined by the spherical coordinate system of the darkroom and is perpendicular to the plane rotated by the theta angle.

[0061] The test configuration of the combined axis full anechoic chamber system is shown below: Figure 3 As shown, the two rotating axes of the combined axis system are combined with each other, and the φ axis positioner is installed on the θ axis positioner. The EUT antenna is placed horizontally and points to the Z axis to realize the configuration of the vertical polarization direction of the EUT antenna. During the test, the measurement antenna is positioned at a starting theta angle, the object under test rotates 360 degrees around the φ axis for measurement, and the measurement antenna moves to the next theta angle, repeating the above steps until the measurement of each angle in the range of theta angle from 0 to 180 degrees is completed (the theta angle step is 30 degrees).

[0062] The configuration of the distribution axis full anechoic chamber system is as follows Figure 4As shown in the figure, the two rotation axes of the distributed axis system are independent of each other. The measurement antenna rotates around the θ axis, and the EUT antenna is placed vertically, pointing to the Z axis, and rotates around the φ axis to achieve the configuration of the vertical polarization direction of the EUT antenna. During the test, the turntable will be positioned at a starting phi angle, and the test antenna on the vertical ring will be switched in turn at intervals of 30 degrees for measurement (the range of theta angle is from 150 degrees to 0 degrees, and then to 150 degrees, that is, -150 degrees to +150 degrees). Then, the turntable will rotate to the next phi angle, and the above steps will be repeated until the measurement of each angle in the range of phi angle from 0 degrees to 180 degrees is completed (the phi angle step is 30 degrees).

[0063] The lightweight terminal provided by the present invention can more accurately adapt to the combined axial darkroom and the distributed axial darkroom, reduce the test uncertainty introduced by the EUT positioning system, and be closer to the requirements for carrying out capability verification activities.

[0064] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A lightweight communication terminal for OTA performance test verification, comprising a terminal housing and a terminal mainboard, characterized in that: The terminal housing is provided with the following installation ports: a GSM antenna installation port, an LTE antenna installation port, a 5G NR antenna installation port, and a SIM card installation port, and each installation port is correspondingly installed with a detachable foldable external antenna or a SIM card, and the terminal mainboard includes a baseband chip management module, a radio frequency chip management module, a power management module, and a peripheral management module, wherein: The baseband chip management module includes a baseband chip for controlling and managing tasks and executing each layer of communication protocols, a channel encoder for channel coding and encrypting service information and control information, a digital signal processor for adjusting the power and frequency of the signal, and a modem for GMSK modulation or demodulation of the signal to realize the conversion between the baseband signal and the radio frequency signal; The RF chip management module includes a RF chip, a power amplifier, a filter, a duplexer, a SAW filter and an antenna switch, and is divided into a transmitting channel and a receiving channel. In the transmitting channel, the RF chip modulates the transmitting baseband signal into a transmitting intermediate frequency signal, and the intermediate frequency signal is converted into a RF signal suitable for transmission on a wireless channel after being acted upon by the power amplifier and the filter, and then converted into an electromagnetic wave through an antenna and transmitted. In the receiving channel, the antenna converts the electromagnetic wave sent by the base station into a weak current signal, which is sent to the duplexer or the SAW filter through the antenna switch to filter out useless clutter and obtain a RF signal, which is then demodulated and converted into baseband information by the RF chip and the modem; The power management module is provided with a battery for supplying power to the communication terminal; The peripheral management module includes an antenna RF port, a SIM card port, and a power charging port corresponding to the various installation ports of the terminal housing. The antenna RF port is used to connect to a corresponding detachable foldable external antenna, the SIM card port is used to insert a test white card to establish communication between the terminal and the base station, and the power charging port is used to charge the battery of the power management module and to connect to a computer for terminal debugging.

2. The lightweight communication terminal for OTA performance testing and verification according to claim 1, characterized in that: The power management module adopts a lithium battery power supply system, including a lithium battery charging module, a lithium battery protection module and a power switching circuit, wherein: The lithium battery charging module adopts a constant current or constant voltage linear charger, and automatically terminates the charging cycle when the charging current drops to 1 / 10 of the set value after reaching the final floating charge voltage; The lithium battery protection module includes a control IC, a MOSFET switch tube, a fuse, a resistor and a capacitor. When the lithium battery voltage or the loop current exceeds a specified value, the control IC turns off the MOSFET switch tube and disconnects the lithium battery from the external circuit. The power switching circuit is used to switch the system power supply to the external power supply when the communication terminal is connected to the external power supply, so as to facilitate the debugging and troubleshooting of the communication terminal.

3. The lightweight communication terminal for OTA performance testing and verification according to claim 1, characterized in that: The baseband chip management module and the radio frequency chip management module are packaged together.

4. The lightweight communication terminal for OTA performance testing and verification according to claim 1, characterized in that: The terminal housing is provided with a working indicator light for indicating the working status of the communication terminal.

5. The lightweight communication terminal for OTA performance testing and verification according to claim 4, characterized in that: The radio frequency front end of the radio frequency management module supports MIMO.

6. The lightweight communication terminal for OTA performance testing and verification according to claim 1, characterized in that: The GSM antenna mounting port, the LTE antenna mounting port, and the 5G NR antenna mounting port are evenly distributed on the terminal housing.

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