High-power CPE power regulation method and system

Abstract

The invention relates to the technical field of mobile broadband communication, and particularly provides a high-power CPE power regulation method and system, and the method comprises the steps: connecting a power amplifier of a CPE terminal with an electronic adjustable attenuator, and judging whether the signal range of the CPE terminal is in a reasonable range or not through setting a threshold value; when the signal range of the CPE terminal is in an unreasonable range, the resistance value of the electronic adjustable attenuator is adjusted through built-in software of the CPE terminal, and then the gain of the power amplifier is adjusted until the signal range is in a reasonable range. According to the invention, by dynamically adjusting the gain of the power amplifier and combining an intelligent judgment mechanism of RSRP and SINR, the interference problem caused by the large-power CPE when the coverage range is expanded is effectively solved, the signal quality is optimized, and the stability and reliability of communication are improved. The method provided by the invention can be applied to various application scenes, and provides a new thought and a new solution for the development of a mobile broadband communication technology.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile broadband communications, and in particular to a high-power CPE power regulation method and system. Background Art

[0002] The mainstream technologies for mobile broadband communications are 4G (LTE) and 5G (NR), which have been widely used in public and industry communications.

[0003] CPE (Customer Premises Equipment) utilizes 4G and 5G access technologies and is responsible for converting wireless data between Ethernet, WLAN, Bluetooth, ZigBee, and other industrial data interfaces. It can be used in outdoor, in-vehicle, IoT, and Industrial IoT environments. In wireless communications, CPE modulates and demodulates digital signals into signals suitable for wireless transmission and transmits them to base stations. It also demodulates received wireless signals back into digital signals for user devices. Therefore, CPE performance directly impacts the user's network experience. High-performance CPE devices provide more stable and faster network connections.

[0004] However, traditional CPE devices typically use fixed-gain power amplifiers that cannot dynamically adjust based on the actual signal environment. This can result in insufficient power amplifier gain when the signal is weak at the cell edge, and excessive gain when the signal is strong at the cell center, causing interference to terminals in adjacent cells.

[0005] In offshore applications, base station site selection is significantly limited by factors such as coastal topography and island location. Furthermore, the number of users in offshore applications is relatively small, so maximizing the coverage of a single base station is crucial to simplify site selection. In this scenario, high-power CPE is required to improve coverage, but this also introduces interference between terminals. To avoid interference, terminals should adjust the gain of their external power amplifiers appropriately. Summary of the Invention

[0006] In view of this, the present invention proposes a high-power CPE power adjustment method and system. When interference is detected, the power of the external power amplifier is appropriately adjusted to reduce the interference of the CPE on the uplink signals of the terminals in the adjacent cells, thereby solving the problems existing in the above-mentioned prior art.

[0007] On the one hand, to achieve the above-mentioned object, the present invention proposes a high-power CPE power adjustment method, comprising the following steps: Connecting the power amplifier of the CPE terminal to an electronic adjustable attenuator and determining whether the signal range of the CPE terminal is within a reasonable range by setting a threshold; When the signal range of the CPE terminal is in an unreasonable range, the resistance of the electronic adjustable attenuator is adjusted by the built-in software of the CPE terminal, thereby adjusting the gain of the power amplifier until it is in a reasonable range.

[0008] Furthermore, the process of determining whether the signal range of the CPE terminal is within a reasonable range by setting a threshold includes: Writing RSRP and SINR values ​​into a program of the built-in software, setting a first threshold and a second threshold respectively, and determining whether the signal range of the CPE terminal is at the edge of a cell by comparing the RSRP value with the first threshold; By comparing the RSRP value with the second threshold, it is determined whether the signal range of the CPE terminal is within a reasonable range.

[0009] Furthermore, when it is determined that the signal range of the CPE terminal is not at the cell edge, the power amplifier is not started.

[0010] Furthermore, when it is determined that the signal range of the CPE terminal is at the edge of the cell, the power amplifier is started, the downlink gain of the CPE terminal is adjusted, and the RSRP value after gain is compared with the second threshold to determine whether the signal range of the CPE terminal after gain is within a reasonable range.

[0011] Furthermore, when the signal range of the CPE terminal after gain is within a reasonable range, no resistance adjustment is performed; When the signal range is in an unreasonable range, the resistance value of the electronic adjustable attenuator is adjusted by the built-in software until it is in a reasonable range.

[0012] On the other hand, to achieve the above-mentioned object, the present invention proposes a high-power CPE power regulation system, including an electronic adjustable attenuator, a power amplifier, a CPE terminal, a threshold judgment module, and a resistance adjustment module; The electronic adjustable attenuator, the power amplifier, and the CPE terminal are connected in sequence, and the threshold judgment module and the resistance adjustment module are arranged in the CPE terminal; When the threshold judgment module determines that the signal range of the CPE terminal is at the edge of the cell, power gain is performed on the CPE terminal through the power amplifier; When the threshold judgment module determines that the signal range of the CPE terminal is in an unreasonable range, the gain of the power amplifier is adjusted by the electronic adjustable attenuator, and the resistance of the electronic adjustable attenuator is adjusted by the resistance adjustment module until it is in a reasonable range.

[0013] Furthermore, the threshold judgment module receives and reads the current RSRP and SINR values ​​of the CPE terminal in real time, and respectively constructs a first threshold and a second threshold, and judges whether the signal range of the CPE terminal is at the edge of the cell by comparing the RSRP value with the first threshold; By comparing the RSRP value with the second threshold, it is determined whether the signal range of the CPE terminal is within a reasonable range.

[0014] Further, when the threshold judgment module determines that the signal range of the CPE terminal is not at the edge of the cell, the power amplifier is not started; Furthermore, when the threshold judgment module determines that the signal range of the CPE terminal is at the edge of the cell, the power amplifier is started, the downlink gain of the CPE terminal is adjusted, and the RSRP value after gain is compared with the second threshold to determine whether the signal range of the CPE terminal after gain is within a reasonable range.

[0015] Further, when the threshold determination module determines that the signal range of the CPE terminal is within a reasonable range after the gain, no resistance adjustment is performed; When it is determined that the signal range is in an unreasonable range, the resistance of the electronic adjustable attenuator is adjusted by a resistance adjustment module until it is in a reasonable range.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention dynamically adjusts the power amplifier gain and combines it with an intelligent RSRP and SINR judgment mechanism to effectively address the interference issues associated with high-power CPE when improving coverage. It also optimizes signal quality and enhances communication stability and reliability. The method is applicable to a variety of scenarios and provides new insights and solutions for the development of mobile broadband communication technology.

[0017] This invention is not only applicable in scenarios with limited base station coverage, such as at sea, but can also be widely used in a variety of environments, including outdoor, vehicle-mounted, and IoT / IIoT environments. In these complex scenarios, CPE devices often need to operate in complex signal environments, facing issues such as inconsistent signal strength and numerous interference sources. The dynamic power adjustment method of this invention enables CPE devices to automatically optimize their performance in different scenarios, ensuring stable communication connections, demonstrating broad applicability and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those skilled in the art by reading the detailed description of the preferred embodiment below. The accompanying drawings are only for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. In the accompanying drawings: Figure 1 This is a flow chart of the high-power CPE power regulation method proposed in the present invention; Figure 2 This is a schematic diagram of the structure of the high-power CPE power regulation system proposed in the present invention. DETAILED DESCRIPTION

[0019] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, unless there is a conflict, the embodiments of the present disclosure and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein may also be used in the practice or testing of the present invention. All documents mentioned in this specification are incorporated by reference to disclose and describe the methods and / or materials associated with the documents. In the event of any conflict with any incorporated document, the contents of this specification shall prevail.

[0021] High-power CPE is implemented by connecting the communication module's antenna port to a power amplifier, which is then connected to the CPE's antenna port to boost the CPE's transmit power. The disadvantage of this external amplifier installation method is that the amplifier is not subject to power control between the base station and the CPE, and transmits at a fixed gain, which can easily interfere with the uplink signals of terminals in adjacent cells.

[0022] Table 1 is a set of test data: Table 1

[0023] From the test data, it can be concluded that as the strength of the interference signal in the neighboring cell increases, the bit error rate increases rapidly, and in severe cases, it leads to the interruption of communication services.

[0024] In order to reduce interference, we need to adjust the gain of the power amplifier in time.

[0025] The RSRP value represents the received signal strength of a terminal, while the SINR value represents the signal-to-noise ratio. If a terminal has a good RSRP value but a poor SINR value, it can be inferred that the terminal is experiencing interference. Interference typically occurs at the edge of a cell, where the local signal is relatively weak and susceptible to interference from neighboring cells.

[0026] In this case, the power amplifier gain should be adjusted to prevent excessive gain at the cell edge, which could interfere with terminals in neighboring cells. If the terminal is already near the center of the cell and has a strong signal, there's no need to turn on the power amplifier. The RSRP value can be used to determine whether a terminal is near the center or at the cell edge. A higher RSRP value indicates a terminal is closer to the cell center, while a lower value indicates a terminal is closer to the cell edge. This distinction can be made by setting the RSRP threshold.

[0027] Based on the above principles, this embodiment proposes a high-power CPE power adjustment method, including the following steps: Step 1: Connect an electronically adjustable attenuator to the power amplifier. The resistance of the attenuator is controlled by the CPE software.

[0028] Step 2: Write RSRP and SINR values ​​into the CPE software program. Under normal circumstances with no interference or with acceptable interference, a data table of one-to-one correspondence ranges between RSRP and SINR values ​​is provided.

[0029] Step 3: The CPE software reads the current RSRP and SINR values ​​in real time and compares them with the data table stored in the program. If they are not within the reasonable range, the CPE software adjusts the transmit and receive gain of the power amplifier by adjusting the resistance of the electronic adjustable attenuator. The software also reads the RSRP and SINR values ​​in real time. If the RSRP and SINR values ​​are within the reasonable range, the attenuator adjustment stops. If they are outside the reasonable range, the attenuator adjustment continues.

[0030] Step 4: Turn off the amplifier near the midpoint of the cell.

[0031] By adopting the method of the present invention, the gain of the power amplifier can be adjusted in time to reduce mutual interference between terminals, while the gain of the power amplifier is utilized with maximum efficiency to obtain better signal quality.

[0032] This embodiment further proposes specific implementation steps of the above method, such as Figure 1 Shown, including: 1. In unit 101, the amplifier is turned off and the process begins; 2. In unit 102, the CPE reads the RSRP value and SINR value in the current environment in real time.

[0033] 3. In cell 103, the CPE compares the current RSRP value with the threshold in the CPE software that determines whether the CPE is near the center of the cell. If the CPE is near the center, it moves to cell 106. If the CPE is at the edge of the cell, it moves to cell 104.

[0034] 4. In unit 104, turn on the power amplifier to increase the CPE's downlink gain. Compare the current RSRP value with the acceptable RSRP value stored in the CPE software. If it is within the acceptable range, no adjustments are required and proceed to unit 106. If not, proceed to unit 105.

[0035] 6. In unit 105, adjust the resistance of the electronic adjustable attenuator through the CPE software to adjust the gain of the CPE power amplifier to a reasonable range.

[0036] 7. In Unit 106, the use case ends.

[0037] Based on the above method, this embodiment further proposes a high-power CPE power regulation system, such as Figure 2 As shown, it includes an electronic adjustable attenuator, a power amplifier, a CPE terminal, a threshold judgment module, and a resistance adjustment module; The electronic adjustable attenuator, the power amplifier, and the CPE terminal are connected in sequence, and the threshold judgment module and the resistance adjustment module are arranged in the CPE terminal; When the threshold judgment module determines that the signal range of the CPE terminal is at the edge of the cell, power gain is performed on the CPE terminal through the power amplifier; When the threshold judgment module determines that the signal range of the CPE terminal is in an unreasonable range, the gain of the power amplifier is adjusted by the electronic adjustable attenuator, and the resistance of the electronic adjustable attenuator is adjusted by the resistance adjustment module until it is in a reasonable range.

[0038] As a preferred embodiment, the threshold judgment module receives and reads the current RSRP and SINR values ​​of the CPE terminal in real time, and respectively constructs a first threshold and a second threshold, and judges whether the signal range of the CPE terminal is at the edge of the cell by comparing the RSRP value with the first threshold; By comparing the RSRP value with the second threshold, it is determined whether the signal range of the CPE terminal is within a reasonable range.

[0039] As a preferred implementation manner, when the threshold judgment module determines that the signal range of the CPE terminal is not at the cell edge, the power amplifier is not started; As a preferred implementation, when the threshold judgment module determines that the signal range of the CPE terminal is at the edge of the cell, the power amplifier is started, the downlink gain of the CPE terminal is adjusted, and the RSRP value after gain is compared with the second threshold to determine whether the signal range of the CPE terminal after gain is within a reasonable range.

[0040] As a preferred embodiment, when the threshold determination module determines that the signal range of the CPE terminal is within a reasonable range after the gain is determined, the resistance adjustment is not performed; When it is determined that the signal range is in an unreasonable range, the resistance of the electronic adjustable attenuator is adjusted by a resistance adjustment module until it is in a reasonable range.

[0041] It can be understood that the present invention achieves dynamic control of the power amplifier gain by introducing an electronically adjustable attenuator and combining it with the real-time monitoring and adjustment functions of the CPE built-in software. It flexibly adjusts the output power of the power amplifier according to the signal environment in which the CPE terminal is located (such as the cell edge or cell center), thereby effectively reducing interference to adjacent cells while ensuring signal coverage.

[0042] This invention is not only applicable in scenarios with limited base station coverage, such as at sea, but can also be widely used in a variety of environments, including outdoor, vehicle-mounted, and IoT / IIoT environments. In these complex scenarios, CPE devices often need to operate in complex signal environments, facing issues such as inconsistent signal strength and numerous interference sources. The dynamic power adjustment method of this invention enables CPE devices to automatically optimize their performance in different scenarios, ensuring stable communication connections, demonstrating broad applicability and practicality.

[0043] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. 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 method description.

[0044] Those skilled in the art will appreciate that embodiments of the present invention may be provided as systems or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0045] The present invention is described with reference to flowcharts and / or block diagrams of computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0046] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0047] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0048] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-described embodiments within the technical scope disclosed by the present invention, or replace some of the technical features therein with equivalents. Such modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. They should all be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A high-power CPE power adjustment method, characterized in that: The following steps are involved: Connecting the power amplifier of the CPE terminal to an electronic adjustable attenuator and determining whether the signal range of the CPE terminal is within a reasonable range by setting a threshold; When the signal range of the CPE terminal is in an unreasonable range, the resistance of the electronic adjustable attenuator is adjusted by the built-in software of the CPE terminal, thereby adjusting the gain of the power amplifier until it is in a reasonable range.

2. The high-power CPE power adjustment method according to claim 1, characterized in that: The process of determining whether the signal range of the CPE terminal is within a reasonable range by setting a threshold includes: Writing RSRP and SINR values ​​into a program of the built-in software, setting a first threshold and a second threshold respectively, and determining whether the signal range of the CPE terminal is at the edge of a cell by comparing the RSRP value with the first threshold; By comparing the RSRP value with the second threshold, it is determined whether the signal range of the CPE terminal is within a reasonable range.

3. The high-power CPE power adjustment method according to claim 2, characterized in that: When it is determined that the signal range of the CPE terminal is not at the cell edge, the power amplifier is not started.

4. The high-power CPE power adjustment method according to claim 2, characterized in that: When it is determined that the signal range of the CPE terminal is at the edge of the cell, the power amplifier is started, the downlink gain of the CPE terminal is adjusted, and the RSRP value after the gain is compared with the second threshold to determine whether the signal range of the CPE terminal after the gain is within a reasonable range.

5. The high-power CPE power adjustment method according to claim 4, characterized in that: When the signal range of the CPE terminal after gain is within a reasonable range, no resistance adjustment is performed; When the signal range is in an unreasonable range, the resistance value of the electronic adjustable attenuator is adjusted by the built-in software until it is in a reasonable range.

6. A high-power CPE power regulation system, characterized in that: It includes electronic adjustable attenuator, power amplifier, CPE terminal, threshold judgment module and resistance adjustment module; The electronic adjustable attenuator, the power amplifier, and the CPE terminal are connected in sequence, and the threshold judgment module and the resistance adjustment module are arranged in the CPE terminal; When the threshold judgment module determines that the signal range of the CPE terminal is at the edge of the cell, power gain is performed on the CPE terminal through the power amplifier; When the threshold judgment module determines that the signal range of the CPE terminal is in an unreasonable range, the gain of the power amplifier is adjusted by the electronic adjustable attenuator, and the resistance of the electronic adjustable attenuator is adjusted by the resistance adjustment module until it is in a reasonable range.

7. The high-power CPE power regulation system according to claim 6, characterized in that: The threshold judgment module receives and reads the current RSRP and SINR values ​​of the CPE terminal in real time, and respectively constructs a first threshold and a second threshold, and judges whether the signal range of the CPE terminal is at the edge of the cell by comparing the RSRP value with the first threshold; By comparing the RSRP value with the second threshold, it is determined whether the signal range of the CPE terminal is within a reasonable range.

8. The high-power CPE power regulation system according to claim 7, characterized in that: When the threshold judgment module judges that the signal range of the CPE terminal is not at the cell edge, the power amplifier is not started.

9. The high-power CPE power regulation system according to claim 7, characterized in that: When the threshold judgment module determines that the signal range of the CPE terminal is at the edge of the cell, the power amplifier is started, the downlink gain of the CPE terminal is adjusted, and the RSRP value after the gain is compared with the second threshold to determine whether the signal range of the CPE terminal after the gain is within a reasonable range.

10. The high-power CPE power regulation system according to claim 7, characterized in that: When the threshold determination module determines that the signal range of the CPE terminal is within a reasonable range after the gain, no resistance adjustment is performed; When it is determined that the signal range is in an unreasonable range, the resistance of the electronic adjustable attenuator is adjusted by a resistance adjustment module until it is in a reasonable range.

Images