Automatic detection method, system and equipment for repeater based on NCO (Network Controlled Oscillator) and medium

Abstract

The invention relates to the technical field of signal detection, and discloses an NCO-based repeater automatic detection method, system and device and a medium, and the method comprises the steps: initializing a system, and carrying out the remote registration; abnormal judgment of the far end and the connector is carried out through the inquired output power and gain of the far end; setting an uplink channel mode and a downlink channel mode, and reading state data; and judging the working states of the near-end antenna and the donor antenna according to the state data. After the equipment is electrified and initialized, self-inspection is carried out, the topological structure of the whole system is detected through an ad hoc network link, a standard signal is sent in an NCO mode, output power of each far end is tested, loss between a near end and each far end is tested, the state of the equipment is judged, and the state of the whole system is automatically detected.

Description

Technical Field

[0001] The present invention relates to the technical field of signal detection, and in particular to an NCO-based repeater automatic detection method, system, equipment and medium. Background Art

[0002] At present, the base station deployment method for achieving outdoor 5G network coverage mainly relies on macro base stations, and the deep network coverage is far from enough. Micro-distribution has been widely deployed due to its advantages such as flexible deployment, diverse spectrum, and low cost. Since the micro-distribution uses RF cables and RF connectors to connect the far and near ends, the on-site signal situation is relatively complicated, and poor signals often occur. In addition, there is a lack of convenient detection methods, which causes instability in construction and maintenance.

[0003] Existing micro-distribution mostly uses the method of detecting the output power of the final PA to determine whether the equipment is working properly. This method has certain defects. The strength of the signal source, the load of the network, the connection error, the quality of the feeder construction, and the equipment failure will affect the output power. It is impossible to accurately judge the status of the equipment, and it is impossible to tell whether there is a problem with the feeder network. The existing technical solutions cannot provide more information to take targeted repair measures, and cannot solve the problem quickly and efficiently. Summary of the invention

[0004] The present invention provides a method, system, device and medium for automatic detection of repeaters based on NCO. The device performs self-detection after power-on initialization, detects the topology of the entire system through an ad hoc network link, sends a standard signal in NCO mode, tests the output power of each far end, tests the loss between the near end and each far end, determines the state of the device, and automatically detects the state of the entire system.

[0005] The present invention provides a repeater automatic detection method based on NCO, comprising:

[0006] The system is initialized and remote registration is performed;

[0007] By querying the output power and gain of the remote end, abnormalities of the remote end and the connector can be determined;

[0008] Set the uplink and downlink channel modes and read the status data;

[0009] The working status of the near-end and donor antennas is determined based on the status data.

[0010] Preferably, the system initialization and remote registration are specifically as follows:

[0011] After the system is powered on, the port is initialized and the driver and bin files are loaded;

[0012] The near end broadcasts a registration message, and several remote ends randomly access. After the near end captures the remote end's response, it feeds back a registration message to establish associations between the near end and several remote ends.

[0013] Preferably, the abnormality judgment of the remote end and the connector is performed by querying the output power and gain of the remote end as follows:

[0014] After obtaining several remote lists, the near end enters the NCO working mode, transmits CW signals at a specific frequency, sends gain and power query commands to several remote ends respectively, and obtains the RF output power and gain configuration of several remote ends;

[0015] By judging whether the gain is less than the rated gain and whether the transmission power is equal to the nominal power, it is judged whether the remote end is normal;

[0016] Determine the insertion loss between the near end and each far end, calculate the feeder length based on the unit loss and topology, and compare the feeder length with the actual length of the project or the standard configuration length. If the loss deviation exceeds 20dB, it indicates that there is an abnormality in the connector installation.

[0017] Preferably, the steps of setting the uplink and downlink channel modes and reading the status data are as follows:

[0018] Set the near-end downlink channel operating frequency to the frequency point within the uplink protection band, and the NCO mode transmit output power to the rated output power backed off by 10dB; set the uplink to normal working mode, read back the near-end uplink detection voltage and calculate the output power, and read back the RSSI and gain at the same time;

[0019] Set the uplink channel operating frequency to the frequency point within the downlink protection band, and the NCO mode transmit output power to the rated output power backed off by 10dB; set the downlink to the normal working mode, read back the near-end downlink detection voltage and calculate the output power, and read back the RSSI and gain at the same time;

[0020] Preferably, the determining of the working status of the proximal antenna and the donor antenna is specifically as follows:

[0021] Determine the near-end working status based on the uplink and downlink output power, RSSI and gain;

[0022] The near end is set to normal working mode, reads the power amplifier detection voltage and calculates the output power; collects the power amplifier detection voltage data and downlink gain of multiple frame periods, and calculates the average transmission power peak within the collection period;

[0023] Compare the RSRP of the handheld terminal and the RSRP of the device at the project site, where the device RSRP = average transmit power peak - 30dB - downlink gain. If the difference is higher than 10dB and lower than 20dB, it is judged that the donor antenna direction is abnormal; if the difference is higher than 20dB, it is judged that the donor antenna link is abnormal.

[0024] Preferably, the calculation of the feeder length according to the unit loss and the topological structure is specifically as follows:

[0025] Determine the insertion loss of the extension unit based on the number of remote ends and the operating frequency band;

[0026] Determine the unit feeder loss based on the remote multimode capability and the current NCO self-test operating frequency band;

[0027] Wherein, self-test feeder length L[i]=(InsertLoss[i]-extension unit insertion loss) / unit feeder loss*100.

[0028] Preferably, the feeder length is compared with the actual length of the project or the standard configuration length, and the loss deviation exceeds 20dB, indicating that there is an abnormality in the joint installation, specifically:

[0029] Calculate the feeder length corresponding to 20dB, that is, the allowable deviation of the measured feeder length = 20 / unit feeder loss * 100; if the self-test feeder length - standard length < the allowable deviation of the measured feeder length, it is considered normal.

[0030] Preferably, a repeater automatic detection system based on NCO comprises:

[0031] Initialization module, used for system initialization and remote registration;

[0032] The parameter query module is used to judge the abnormality of the remote end and the connector by querying the output power and gain of the remote end;

[0033] Mode setting module, used to set the uplink and downlink channel modes and read status data;

[0034] The status judgment module is used to judge the working status of the near-end antenna and the donor antenna according to the status data.

[0035] Preferably, a device comprises a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the NCO-based repeater automatic detection method when executing the computer program.

[0036] Preferably, a computer-readable storage medium includes a stored computer program, wherein when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute the NCO-based repeater automatic detection method.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The present invention discloses an automatic detection method, system, equipment and medium for repeaters based on NCO. After the equipment is powered on and initialized, it performs self-checking, detects the topological structure of the whole system through a self-organizing network link, sends a standard signal in NCO mode, tests the output power of each far end, tests the loss between the near end and each far end, judges the state of the equipment, and automatically detects the state of the whole system. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic flow chart of an automatic detection method for a repeater based on NCO provided by an embodiment of the present invention;

[0040] Figure 2 It is a schematic diagram of a module of an automatic detection system for repeaters based on NCO provided by an embodiment of the present invention;

[0041] Figure 3 The present invention provides a schematic diagram of the structure of an automatic detection system for repeaters based on NCO. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] like Figure 1 As shown, the present application provides a method for automatic detection of repeaters based on NCO, comprising:

[0044] S1: System initialization and remote registration;

[0045] S2: Determine abnormalities of the remote end and the connector by checking the remote end output power and gain;

[0046] S3: Set the uplink and downlink channel modes and read the status data;

[0047] S4: Determine the working status of the proximal antenna and the donor antenna according to the status data.

[0048] In the above scheme, the system initializes and carries out the remote registration phase. The broadcast registration and response mechanism based on the internal protocol can effectively ensure the stability and efficiency of the system network construction. For abnormal judgment through remote output power and gain, this method of using precise data calculation and comparison to determine the status of remote equipment and connectors is an accurate and efficient fault detection method; set the channel mode and read the status data to determine the working status of the proximal and donor antennas. The design of multiple mode switching and multi-parameter comprehensive analysis in this process enables the system to fully and deeply understand its own operation status; all status and diagnostic data are transmitted back to the network management platform, and the project site obtains diagnostic information through web access or app.

[0049] Preferably, in step S1, the system is initialized and remote registration is performed as follows:

[0050] After the system is powered on, the port is initialized and the driver and bin files are loaded;

[0051] The near end broadcasts a registration message, and several remote ends randomly access. After the near end captures the remote end's response, it feeds back a registration message to establish associations between the near end and several remote ends.

[0052] At the same time, the uplink RF channel is turned off at the near end, and the downlink channel Transceiver enters the NCO mode, sets the operating frequency to the downlink protection band frequency, and outputs the CW signal at a level 10dB lower than the standard power.

[0053] Preferably, in step S2, the abnormality judgment of the remote end and the connector is performed by querying the output power and gain of the remote end as follows:

[0054] After obtaining a list of several remote ends, a gain and power query command is sent to the several remote ends respectively to obtain the RF output power and gain configuration of the several remote ends;

[0055] By judging whether the gain is less than the rated gain and whether the transmission power is equal to the nominal power, it is judged whether the remote end is normal;

[0056] Determine the insertion loss between the near end and each far end, calculate the feeder length based on the unit loss and topology, and compare the feeder length with the actual length of the project or the standard configuration length. If the loss deviation exceeds 20dB, it indicates that there is an abnormality in the connector installation.

[0057] Preferably, in step S3, the uplink and downlink channel modes are set and the status data is read specifically as follows:

[0058] Set the near-end downlink channel operating frequency to the frequency point within the uplink protection band, and the NCO mode transmit output power to the rated output power backed off by 10dB; set the uplink to normal working mode, read back the near-end uplink detection voltage and calculate the output power, and read back the RSSI and gain at the same time;

[0059] Set the uplink channel operating frequency to the frequency point within the downlink protection band, and the NCO mode transmit output power to the rated output power backed off by 10dB; set the downlink to the normal working mode, read back the near-end downlink detection voltage and calculate the output power, and read back the RSSI and gain at the same time;

[0060] Preferably, in step S4, the determining of the working status of the proximal antenna and the donor antenna is specifically:

[0061] Determine the near-end working status based on the uplink and downlink output power, RSSI and gain;

[0062] The near end is set to normal working mode, reads the power amplifier detection voltage and calculates the output power; collects the power amplifier detection voltage data and downlink gain of multiple frame periods, and calculates the average transmission power peak within the collection period;

[0063] Compare the RSRP of the mobile phone and the RSRP of the device at the project site, where the device RSRP = average transmit power peak - 30dB - downlink gain. If the difference is higher than 10dB and lower than 20dB, it is judged that the donor antenna direction is abnormal; if the difference is higher than 20dB, it is judged that the donor antenna link is abnormal.

[0064] Preferably, the calculation of the feeder length according to the unit loss and the topological structure is specifically as follows:

[0065] Determine the insertion loss of the extension unit based on the number of remote ends and the operating frequency band;

[0066] In an embodiment provided in the present application, taking 1.8G as an example, the number of far ends is <=4, the insertion loss is 10Db, the number of far ends is >4, and the insertion loss is 13dB.

[0067] Determine the unit feeder loss based on the remote multimode capability and the current NCO self-test operating frequency band;

[0068] In an embodiment provided in the present application, taking the 1.8G / 3.5G series products as an example, the device supports 3.5G with a unit loss of 60, and the device supports 1.8G with a unit loss of 30dB.

[0069] Wherein, self-test feeder length L[i]=(InsertLoss[i]-extension unit insertion loss) / unit feeder loss*100.

[0070] In the above scheme, L[i] represents the length of the th feeder; InsertLoss[i] is the insertion loss between the near end and the th far end. The insertion loss is the total loss value calculated based on far-end feedback and other methods, which includes the loss of the feeder itself and the loss of other possible connecting components; the extension unit insertion loss is a known fixed loss value, which is generated by the extension unit in the system and needs to be deducted when calculating the feeder length because this part of the loss is not caused by the feeder itself; the unit feeder loss refers to the loss generated per 100 meters of feeder, and the unit is dB / 100m (decibel per 100 meters); by dividing the total loss by the unit feeder loss, the corresponding multiple of the feeder length can be obtained, and then multiplied by 100 to get the feeder length.

[0071] In one embodiment provided in the present application, it is assumed that 1.8G is supported, the insertion loss measured between the near end and a certain far end is 60dB, the insertion loss of the extension unit is 10dB, and the unit feeder loss is 30dB / 100m;

[0072] First, calculate the actual feeder loss after deducting the extension unit insertion loss: 60-10=50dB;

[0073] Then calculate the feeder length multiple: 50÷30=1.66 (times);

[0074] Finally, the feeder length is calculated: 1.66×100=166 meters, that is, L[i]=166 meters.

[0075] Preferably, the feeder length is compared with the actual length of the project or the standard configuration length, and the loss deviation exceeds 20dB, indicating that there is an abnormality in the joint installation, specifically:

[0076] Calculate the feeder length corresponding to 20dB, that is, the allowable deviation of the measured feeder length = 20 / unit feeder loss * 100; if the self-test feeder length - standard length < the allowable deviation of the measured feeder length, it is considered normal.

[0077] Calculate the feeder length multiple corresponding to 20dB: 20÷30*100=66 (meters);

[0078] In the above embodiment, the engineering site can obtain the feeder length of the far end through the network management platform as 166 meters, with an allowable deviation of 66 meters and a judgment threshold of 100 meters. If the actual installed feeder is less than 100 meters, it is determined that there is a feeder or joint abnormality between the far end and the near end.

[0079] In a specific implementation, if any remote measurement data exceeds the allowable deviation, it is marked as abnormal networking status. If there is an abnormality, the APC is adjusted to increase or decrease the transmission power for further diagnosis.

[0080] Preferably, Figure 2As shown, a repeater automatic detection system based on NCO includes:

[0081] Initialization module, used for system initialization and remote registration;

[0082] The parameter query module is used to judge the abnormality of the remote end and the connector by querying the output power and gain of the remote end;

[0083] Mode setting module, used to set the uplink and downlink channel modes and read status data;

[0084] The status judgment module is used to judge the working status of the near-end antenna and the donor antenna according to the status data.

[0085] In the above scheme, a repeater automatic detection system based on NCO generates a standard signal by a micro-distributed access unit, sends it to the remote end, collects the RF power information and gain information of the remote unit in a polling manner, and returns it to the access unit for calculation through a self-organizing network to determine the remote unit under this access unit, and diagnoses the RF function of each remote unit, the link loss between each remote end and the near section, etc., so as to judge the status of each remote end and the availability of the network. It overcomes the shortcomings of the prior art that the collected data is single and unreliable due to the influence of network conditions and on-site construction quality, and cannot provide multiple diagnostic results; the present application has the advantages of diverse data and accurate values, and can diagnose a variety of common problems and provide solutions.

[0086] like Figure 3 As shown, the present application provides a proximal and distal circuit structure and a signal transmission link in a communication system, including a proximal circuit structure and a distal circuit structure.

[0087] The proximal circuit structure includes:

[0088] Antenna: signal input and output port;

[0089] Duplexer: connected to the antenna, used to separate and combine signals so that the transmit and receive signals can share the same antenna;

[0090] NCO (Numerically Controlled Oscillator): used to generate local oscillation signals, plays a key role in the modulation and demodulation of signals, and can be implemented through the internal modules of digital transceivers;

[0091] Transceiver: Responsible for signal transmission and reception. There are two transceivers in the figure, connected by FPGA.

[0092] FPGA (Field Programmable Gate Array): used to process and control signals between transceivers, and plays a role in data processing and logic control;

[0093] MCU (microcontroller unit): connected to the ad hoc network transmission link and receives the detection voltage signal for the control and management of the entire system;

[0094] Ad hoc network transmission link: used to communicate with the remote end and realize data transmission;

[0095] In the near-end circuit structure, the signal received by the antenna enters the system through the duplexer, is processed by the NCO and transceiver, and then processed by the FPGA. It is then transmitted from the antenna after passing through another transceiver, NCO and duplexer. At the same time, the MCU communicates with the remote end through the self-organizing network transmission link and receives the detection voltage signal for system control.

[0096] The remote circuit structure includes:

[0097] Antenna: It is also the input and output port of the signal.

[0098] Duplexer: It has the same function as the duplexer at the near end, used to separate and combine signals.

[0099] NCO (Numerically Controlled Oscillator): used to generate a local oscillation signal for transmission via a transceiver.

[0100] Transceiver: responsible for transmitting and receiving signals.

[0101] MCU (Microcontroller Unit): connected to the MANET transmission link and receives the detection voltage signal for controlling and managing the remote system.

[0102] Ad hoc network transmission link: used to communicate with the near end to achieve data transmission.

[0103] Feeder network: connects the duplexer and transceiver for signal transmission.

[0104] Uplink and downlink: used for uploading and downloading signals respectively, ensuring two-way transmission of data.

[0105] In the remote circuit structure, the signal received by the antenna enters the system through the duplexer, is processed by the feeder network, NCO and transceiver, and is transmitted to the MCU through the uplink. The MCU communicates with the near end through the self-organizing network transmission link. At the same time, the MCU also sends the signal to the transceiver through the downlink, which is transmitted from the antenna after passing through the NCO and duplexer. And the MCU receives the detection voltage signal for system control.

[0106] The system realizes two-way transmission of signals through the collaborative work of the near end and the far end. Both the near end and the far end have key components such as antennas, duplexers, NCOs, transceivers and MCUs to ensure the transmission and reception functions of signals; both the near end and the far end have self-organizing network transmission links, which shows that the system has self-organizing network capabilities and can realize communication and data transmission between multiple nodes without a central control node, which is suitable for distributed communication networks; through FPGA and MCU to process and control signals, it can realize signal modulation, demodulation, data processing and system management, ensuring the stability and reliability of the communication system.

[0107] Preferably, a device comprises a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the NCO-based repeater automatic detection method when executing the computer program.

[0108] Preferably, a computer-readable storage medium includes a stored computer program, wherein when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute the NCO-based repeater automatic detection method.

[0109] Preferably, the computer program can be divided into one or more modules / units (such as computer programs), and the one or more modules / units are stored in the memory and executed by the processor to complete the present invention. The one or more modules / units can be a series of computer program instruction segments that can complete specific functions, and the instruction segments are used to describe the execution process of the computer program in the terminal device.

[0110] The processor may be a central processing unit (CPU), or other general-purpose processors, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor. The processor is the control center of the terminal device, and various parts of the terminal device are connected using various interfaces and lines.

[0111] The memory mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function, etc., and the data storage area can store related data, etc. In addition, the memory can be a high-speed random access memory, or a non-volatile memory, such as a plug-in hard disk, a smart memory card (SmartMedia Card, SMC), a secure digital (Secure Digital, SD) card, and a flash card (Flash Card), etc., or the memory can also be other volatile solid-state storage devices.

[0112] It should be noted that the above-mentioned terminal device may include, but is not limited to, a processor and a memory. Those skilled in the art will understand that the above-mentioned terminal device is merely an example and does not constitute a limitation on the terminal device. It may include more or fewer components, or a combination of certain components, or different components.

[0113] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A repeater automatic detection method based on NCO, characterized in that: include: The system is initialized and remote registration is performed; By querying the output power and gain of the remote end, abnormalities of the remote end and the connector can be determined; Set the uplink and downlink channel modes and read the status data; The working status of the near-end and donor antennas is determined based on the status data.

2. The NCO-based repeater automatic detection method according to claim 1, characterized in that: The system initialization and remote registration are specifically as follows: After the system is powered on, the port is initialized and the driver and bin files are loaded; The near end broadcasts a registration message, and several remote ends randomly access. After the near end captures the remote end's response, it feeds back a registration message to establish associations between the near end and several remote ends.

3. The NCO-based repeater automatic detection method according to claim 2, characterized in that: The abnormality judgment of the remote end and the connector is performed by querying the output power and gain of the remote end as follows: After obtaining several remote lists, the near end enters the NCO working mode and generates a single tone signal at a specific frequency; sends gain and power query commands to several remote ends respectively to obtain the RF output power and gain configuration of several remote ends; By judging whether the gain is less than the rated gain and whether the transmission power is equal to the nominal power, it is judged whether the remote end is normal; Determine the insertion loss between the near end and each far end, calculate the feeder length based on the unit loss and topology, and compare the feeder length with the actual length of the project or the standard configuration length. If the loss deviation exceeds 20dB, it indicates that there is an abnormality in the connector installation.

4. The NCO-based repeater automatic detection method according to claim 3, characterized in that: The steps of setting the uplink and downlink channel modes and reading the status data are as follows: Set the near-end downlink channel operating frequency to the frequency point within the uplink protection band, and the NCO mode transmit output power to the rated output power backed off by 10dB; set the uplink to normal working mode, read back the near-end uplink detection voltage and calculate the output power, and read back the RSSI and gain at the same time; Set the uplink channel operating frequency to the frequency within the downlink protection band, and the NCO mode transmit output power to be 10dB back off from the rated output power; Set the downlink to normal working mode, read back the near-end downlink detection voltage and calculate the output power, and read back the RSSI and gain at the same time.

5. The method for automatic detection of repeaters based on NCO according to claim 4, characterized in that: The determination of the working status of the proximal antenna and the donor antenna is specifically as follows: Determine the near-end working status based on the uplink and downlink output power, RSSI and gain; The near end is set to normal working mode, reads the power amplifier detection voltage and calculates the output power; collects the power amplifier detection voltage data and downlink gain of multiple frame periods, and calculates the average transmission power peak within the collection period; Compare the RSRP of the handheld terminal and the RSRP of the device at the project site, where the device RSRP = average transmit power peak - 30dB - downlink gain. If the difference is higher than 10dB and lower than 20dB, it is judged that the donor antenna direction is abnormal; if the difference is higher than 20dB, it is judged that the donor antenna link is abnormal.

6. The method for automatic detection of repeaters based on NCO according to claim 3, characterized in that: The calculation of the feeder length according to the unit loss and topological structure is specifically as follows: Determine the insertion loss of the extension unit based on the number of remote ends and the operating frequency band; Determine the unit feeder loss based on the remote multimode capability and the current NCO self-test operating frequency band; Wherein, self-test feeder length L[i]=(InsertLoss[i]-extension unit insertion loss) / unit feeder loss*100.

7. The NCO-based repeater automatic detection method according to claim 6, characterized in that: When comparing the feeder length with the actual length of the project or the standard configuration length, if the loss deviation exceeds 20dB, it indicates that there is an abnormality in the connector installation. Specifically: Calculate the feeder length corresponding to 20dB, that is, the allowable deviation of the measured feeder length = 20 / unit feeder loss * 100; if the self-test feeder length - standard length < the allowable deviation of the measured feeder length, it is considered normal.

8. An automatic detection system for repeaters based on NCO, characterized in that: include: Initialization module, used for system initialization and remote registration; The parameter query module is used to judge the abnormality of the remote end and the connector by querying the output power and gain of the remote end; Mode setting module, used to set the uplink and downlink channel modes and read status data; The status judgment module is used to judge the working status of the near-end antenna and the donor antenna according to the status data.

9. A device, characterized in that: The invention comprises a processor, a memory and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, the automatic detection method of a repeater based on NCO as claimed in any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored computer program, wherein when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute the NCO-based repeater automatic detection method as described in one of claims 1 to 7.

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