4G frequency band simulation frequency sweeping front-end equipment and frequency sweeping method

Abstract

The invention discloses 4G frequency band simulation frequency sweeping front-end equipment and a frequency sweeping method, and relates to the technical field of wireless communication. The 4G frequency band simulation frequency sweeping front-end device comprises a power supply, a switch, a PMOS, a boost DCD C, a watchdog, a Bluetooth SOC, a 4G and an antenna module. The power source supplies power, the switch controls start and stop, the PMOS controls the 4G power source, the boost DCDC boost voltage, the watchdog monitors the state, the Bluetooth SOC intelligently controls and communicates with 4G, and the antenna is responsible for signal receiving and transmitting. An ESD protection circuit and an electrostatic charge elimination protection circuit are additionally arranged; a 5G detection circuit is additionally arranged, 5G signal detection is supported, a 5G frequency band is scanned through an antenna, and information is uploaded through networking of a 4G module; the PMOS controls 4G and 5G power supplies, the 5G detection circuit comprises an attenuator, a radio frequency switch, a filter and an LNA, signals are processed and then sent to the Bluetooth SOC for processing, and 5G frequency band information is output.

Description

Technical Field

[0001] The present application belongs to the field of wireless communication technology, and in particular, relates to a 4G frequency band analog frequency sweeping front-end device and a frequency sweeping method. Background Art

[0002] 4G frequency band analog scanning front-end equipment is mainly used to test and analyze the wireless communication environment, such as detecting signal strength, locating interference sources, etc. This type of equipment is very important for network planning, optimization, and troubleshooting. With the development of wireless communication technology, the demand for supporting wider frequency bands is increasing, so as to cover wider frequency bands of 4G working bands and 5G bands.

[0003] Some traditional designs may only be optimized for a few specific frequency bands and cannot adapt well to application requirements in full-band or multi-mode scenarios, especially when large amounts of data need to be scanned quickly. The data collection and processing efficiency of some older models or low-end products is low. When working outdoors for a long time, high power consumption may limit the working time of the equipment, and the existing scanning equipment has low remote operability. Summary of the invention

[0004] The purpose of this application is to provide a 4G frequency band analog frequency scanning front-end device and a frequency scanning method, and to improve the operability, application scope and service life of the device through the design of integrated modules and low power consumption modes.

[0005] In order to achieve the above objectives, the solution of this application is:

[0006] In a first aspect, an embodiment of the present application provides a 4G frequency band analog frequency scanning front-end device, including:

[0007] A power module is configured to output a DC voltage to supply power to the device;

[0008] A switch module, connected to the power module, configured to control the startup and shutdown of the device;

[0009] The PMOS module is connected to the switch module and is configured to control the power on and off of the 4G module;

[0010] A boost DCDC module, connected to the PMOS module, configured to increase the DC voltage output by the power module;

[0011] A watchdog circuit module is connected to the switch module and is configured to monitor the working state of the device and automatically cut off the connection with the switch module when an abnormality or failure occurs in the device;

[0012] The Bluetooth SOC module is connected to the watchdog circuit module and the PMOS module, and is configured to control the on / off of the PMOS module according to the working state of the device. When the working state of the device is startup, the Bluetooth SOC module is configured to output a high level to the PMOS module to control the PMOS module to turn on; when the working state of the device is shutdown, the Bluetooth SOC module is configured to output a low level to the PMOS module to control the PMOS module to turn off;

[0013] A 4G module connected to the antenna module, wherein the antenna module is configured to receive and transmit radio signals, and the 4G module is also connected to the Bluetooth SOC module, and 4G communication is performed through the antenna module to achieve scanning of the 4G frequency band.

[0014] According to the above method of the embodiment of the present application, the following additional technical features may also be provided:

[0015] Furthermore, the device also includes an ESD protection circuit module, which is connected between the switch module and the watchdog circuit module and is configured to eliminate static charge in the device.

[0016] Furthermore, the device also includes a 5G detection circuit connected between the antenna module and the Bluetooth SOC module, and configured to detect a 5G signal and perform 5G detection through the antenna module;

[0017] The PMOS module is connected to the switch module and is configured to control the power on and off of the 4G module and the 5G detection circuit.

[0018] Furthermore, the 5G detection circuit includes an attenuator, a first RF switch and a second RF switch respectively connected to the attenuator, the first RF switch is respectively connected to the first branch and the second branch, the second RF switch is connected to the third branch, the first branch, the second branch and the third branch each include a first filter, a first LNA module, a second filter and a third filter connected in sequence; the second branch and the third branch are respectively connected to the third RF switch, the third RF switch and the third branch are respectively connected to the fourth RF switch; the fourth RF switch is sequentially connected to the second LNA module, the detector and the Bluetooth SOC module.

[0019] Further, the method comprises:

[0020] The device is started through the switch module, and the power module is connected to provide a DC voltage for the device; the working status of the device is monitored through the watchdog circuit module, and when the device does not have any abnormality or failure, the Bluetooth SOC module is connected; after the connection, the Bluetooth SOC module receives the DC voltage provided by the power module, the Bluetooth SOC module starts to initialize, and outputs a high level to the PMOS module, the power module supplies power to the 4G module through the PMOS module and the boost DCDC module, and the Bluetooth SOC module transmits the sweep command to the 4G module through UART communication; the radio signal is received through the antenna module and output to the 4G module; the 4G module performs 4G communication through the antenna module and performs a 4G sweep operation; after completing the 4G sweep operation, a low level is output to the PMOS module through the Bluetooth SOC module, the power supply of the power module to the 4G module is cut off, and the device enters a low power consumption mode and waits for the next wake-up.

[0021] Furthermore, the method also includes eliminating static charge in the device through an ESD protection circuit module.

[0022] Further, the method comprises:

[0023] The device is started through the switch module, and the power module is connected to provide a DC voltage for the device; the working status of the device is monitored through the watchdog circuit module, and when the device does not have an abnormality or failure, the Bluetooth SOC module is connected; after the connection, the Bluetooth SOC module receives the DC voltage provided by the power module, the Bluetooth SOC module starts to initialize, and outputs a high level to the PMOS module, the power module supplies power to the 4G module through the PMOS module and the boost DCDC module, and the Bluetooth SOC module transmits the sweep command to the 4G module and the 5G detection circuit through UART communication; the radio signal is received through the antenna module and output to the 4G module and the 5G detection circuit; the 4G module performs 4G communication through the antenna module and performs 4G sweep operation; the 5G detection circuit performs 5G sweep operation through the antenna module; after completing the 4G sweep operation and the 5G sweep operation, a low level is output to the PMOS module through the Bluetooth SOC module; the power supply of the power module to the 4G module is cut off, and the device enters a low power consumption mode and waits for the next wake-up.

[0024] Furthermore, the method also includes eliminating static charge in the device through an ESD protection circuit module.

[0025] Furthermore, the method also includes receiving the radio signal of the antenna module through the 5G detection circuit, filtering, amplifying and detecting the radio signal, sending the processed voltage signal to the Bluetooth SOC module for collection, calculating the collected data through the Bluetooth SOC module, and outputting 5G frequency band information.

[0026] Furthermore, the method also includes eliminating static charge in the device through an ESD protection circuit module.

[0027] Compared with the prior art, the 4G frequency band analog frequency sweeping front-end device and frequency sweeping method provided by the embodiments of the present application have the following beneficial technical effects:

[0028] The 4G frequency band analog frequency sweeping front-end device of the embodiment of the present application integrates multiple functional modules such as a power module, a switch module, a PMOS module, a boost DCDC module, a watchdog circuit module, a Bluetooth SOC module, and a 4G module, which not only reduces the size of the device, but also improves the reliability and stability of the frequency sweeping; through the boost DCDC module, the DC voltage output by the power module is increased to meet the voltage requirements of components such as the 4G module, reduce the energy consumption of the device, and improve the energy efficiency ratio of the device; the watchdog circuit module can monitor the working status of the device in real time, and once an abnormality or fault is detected, the power supply is automatically cut off immediately, thereby protecting the device from further damage and enhancing the safety and reliability of the device; the introduction of the ESD protection circuit module effectively eliminates the static charge in the device, prevents the damage to the circuit caused by electrostatic discharge, improves the anti-static interference ability of the device, and extends the service life of the device; by adding a 5G detection circuit, the device not only has the scanning capability of the 4G frequency band, but also can detect 5G signals, realize the scanning of the 5G frequency band, and broaden the application scope of the device;

[0029] The frequency scanning method of the embodiment of the present application starts the device through the switch module, and after the monitoring of the watchdog circuit module and the initialization of the Bluetooth SOC module, the 4G module is powered, and then the frequency scanning instruction is transmitted to the 4G module through UART communication, which simplifies the operation process and improves the frequency scanning efficiency; after completing the frequency scanning operation, the device outputs a low level to the PMOS module through the Bluetooth SOC module, enters a low power consumption mode, reduces the standby power consumption of the device, and extends the service life of the device; in the 5G frequency scanning method, the 5G detection circuit receives the radio signal of the antenna module, and performs filtering, amplification and detection processing. The processed voltage signal is sent to the Bluetooth SOC module for collection and calculation, and is transmitted to the 4G module under the frequency scanning instruction. After completing the 4G frequency scanning, the frequency scanning instruction is transmitted to the 5G module to complete the 5G frequency scanning, and finally the 5G frequency band information is output and transmitted to the 4G module for online uploading, which improves the accuracy and reliability of the frequency scanning result. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A structural block diagram of a 4G frequency band analog frequency sweeping front-end device according to a first embodiment of the present application is shown;

[0031] Figure 2 A structural block diagram of a 4G frequency band analog frequency sweeping front-end device according to a second embodiment of the present application is shown;

[0032] Figure 3A structural block diagram of a 4G frequency band analog frequency sweeping front-end device according to a third embodiment of the present application is shown;

[0033] Figure 4 A structural block diagram of a 5G detection circuit according to the third embodiment of the present application is shown. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0035] The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0036] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0037] like Figure 1As shown, the 4G frequency band analog scanning front-end device of the first embodiment of the present application includes a power module, which is configured to output a DC voltage to power the entire device. As the energy core of the device, it ensures that all modules can work normally; a switch module, connected to the power module, is configured to control the startup and shutdown of the device, which implements the power management of the device to ensure that it can be quickly started when needed and safely shut down when not needed; a PMOS module, connected to the switch module, is configured to control the power on and off of the 4G module. As the main switching element of the device, it is responsible for controlling the on and off of the circuit. The boost DCDC module is connected to the PMOS module and is configured to increase the DC voltage output by the power module, ensuring that the 4G module and other modules requiring higher voltages can work normally and improve the overall performance of the device; a watchdog circuit module, connected to the switch module, is configured to monitor The working status of the device: when the device is abnormal or fails, it automatically cuts off the connection with the switch module, which serves as a protection mechanism for the device to prevent device damage or data loss caused by failures; the Bluetooth SOC module is connected to the watchdog circuit module and the PMOS module, and is configured to control the on and off of the PMOS module according to the working status of the device, thereby realizing intelligent control of the device and being able to quickly adjust the circuit status according to work requirements. At the same time, the Bluetooth function also allows the device to communicate wirelessly with other Bluetooth devices; a 4G module connected to the antenna module, wherein the antenna module is configured to receive and transmit radio signals. The 4G module is also connected to the Bluetooth SOC module for UART communication, and 4G communication is performed through the antenna module to realize scanning of the 4G frequency band. The antenna module and the 4G module are the communication core of the device, responsible for transmitting and receiving data with the outside world, and are the key to the device realizing the frequency scanning function.

[0038] like Figure 2As shown, the 4G frequency band analog frequency sweeping front-end device of the second embodiment of the present application is based on the 4G frequency band analog frequency sweeping front-end device of the first embodiment, and an ESD protection circuit module is added, which is connected between the switch module and the watchdog circuit module, and is configured to eliminate the static charge in the device. ESD (Electrostatic Discharge) represents electrostatic discharge, which is a phenomenon caused by friction charging or electrostatic induction. When an ESD event occurs, an object forms a fixed charge (static electricity) on its surface. If another charged object or material approaches at this time, the voltage difference will cause current to flow between them until the charge balance is restored. The voltage of this static charge can reach several thousand volts, which causes great harm to electronic components. The design of the ESD protection circuit module is to protect the integrated circuit from damage in the ESD event. The main working principle of the ESD protection circuit module is to discharge instantaneous current through a fast-opening protection system. When an ESD impact occurs, the ESD protection device can be turned on quickly, efficiently discharge the impact of large current, and clamp it to a safe voltage, thereby protecting the internal circuit from damage.

[0039] like Figure 3 As shown, the 4G frequency band analog frequency sweeping front-end device of the third embodiment of the present application, on the basis of the 4G frequency band analog frequency sweeping front-end device of the second embodiment, has a 5G detection circuit added, which means that the 4G frequency band analog frequency sweeping front-end device of this embodiment is not limited to 4G communication, but can also respond to and process signals of the 5G frequency band, thereby enhancing the communication capability and flexibility of the device. The 5G detection circuit is connected between the antenna module and the Bluetooth SOC module, and is configured to detect 5G signals, realize the scanning of the 5G frequency band through the antenna module, transmit the frequency sweeping instruction to the 4G module, and after completing the 4G frequency sweeping, transmit the frequency sweeping instruction to the 5G module, complete the 5G frequency sweeping, and finally output the 5G frequency band information, and transmit it to the 4G module for network upload.

[0040] The PMOS module is connected to the switch module and is configured to control the power on and off of the 4G module and the 5G detection circuit.

[0041] Specifically, Figure 4 As shown, the 5G detection circuit includes an attenuator, a first RF switch, a second RF switch, and multiple branches (a first branch, a second branch, and a third branch), each branch including a series of filters (a first filter, a second filter, and a third filter) and LNA (low noise amplifier) ​​modules (a first LNA module and a second LNA module).

[0042] Among them, the attenuator is used to adjust the strength of the signal to ensure that the signal will not be too strong or too weak during subsequent processing; the RF switch is used to switch different signal paths to process different frequency bands or signals; the filter is used to filter out unnecessary frequency components to improve the purity of the signal; the LNA module is used to amplify the signal to improve the detection sensitivity of the signal; specifically, the first RF switch distributes the signal to the first branch and the second branch, while the second RF switch connects the signal to the third branch. Each branch processes the signal through a series of filters and LNA modules. The processed signal is further transmitted through the third RF switch and the fourth RF switch, and finally reaches the detector and the Bluetooth SOC module; the detector is used to convert the RF signal into a voltage signal, which is then sent to the Bluetooth SOC module for collection and processing. The Bluetooth SOC module calculates the collected data to output information on the 5G frequency band.

[0043] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A 4G frequency band analog frequency sweeping front-end device, characterized in that: The device comprises: A power module, configured to output a DC voltage to supply power to the device; A switch module, connected to the power module, configured to control the startup and shutdown of the device; A PMOS module, connected to the switch module, configured to control the power on and off of the 4G module; A boost DCDC module, connected to the PMOS module, configured to increase the DC voltage output by the power module; A watchdog circuit module, connected to the switch module, configured to monitor the working state of the device and automatically cut off the connection with the switch module when the device is abnormal or fails; A Bluetooth SOC module, connected to the watchdog circuit module and the PMOS module, and configured to control the on / off of the PMOS module according to the working state of the device. When the working state of the device is startup, the Bluetooth SOC module is configured to output a high level to the PMOS module to control the PMOS module to turn on; when the working state of the device is shutdown, the Bluetooth SOC module is configured to output a low level to the PMOS module to control the PMOS module to turn off; A 4G module connected to the antenna module, wherein the antenna module is configured to receive and transmit radio signals, and the 4G module is also connected to the Bluetooth SOC module, and 4G communication is performed through the antenna module to achieve scanning of the 4G frequency band.

2. The 4G frequency band analog frequency sweeping front-end device according to claim 1, characterized in that: The device further includes an ESD protection circuit module connected between the switch module and the watchdog circuit module and configured to eliminate static charge in the device.

3. The 4G frequency band analog frequency sweeping front-end device according to claim 1 or 2, characterized in that: The device further includes a 5G detection circuit, connected between the antenna module and the Bluetooth SOC module, configured to detect a 5G signal and perform 5G detection through the antenna module; The PMOS module is connected to the switch module and is configured to control the power on and off of the 4G module and the 5G detection circuit.

4. The 4G frequency band analog frequency sweeping front-end device as claimed in claim 3, characterized in that: The 5G detection circuit includes an attenuator, a first RF switch and a second RF switch connected to the attenuator respectively, the first RF switch is connected to the first branch and the second branch respectively, the second RF switch is connected to the third branch, the first branch, the second branch and the third branch each include a first filter, a first LNA module, a second filter and a third filter connected in sequence; the second branch and the third branch are respectively connected to the third RF switch, the third RF switch and the third branch are respectively connected to the fourth RF switch; the fourth RF switch is connected to the second LNA module, the detector and the Bluetooth SOC module in sequence.

5. A frequency sweeping method for a 4G frequency band analog frequency sweeping front-end device as claimed in claim 1 or 2, characterized in that: The method comprises: The device is started by the switch module, and the power module is connected to provide a DC voltage for the device; the working state of the device is monitored by the watchdog circuit module, and when the device does not have an abnormality or failure, the Bluetooth SOC module is connected; after connection, the Bluetooth SOC module receives the DC voltage provided by the power module, the Bluetooth SOC module starts to initialize, and outputs a high level to the PMOS module, the power module supplies power to the 4G module through the PMOS module and the boost DCDC module, and the Bluetooth SOC module transmits the sweep instruction to the 4G module through UART communication; the radio signal is received through the antenna module and output to the 4G module; the 4G module performs 4G communication through the antenna module and performs a 4G sweep operation; after completing the 4G sweep operation, a low level is output to the PMOS module through the Bluetooth SOC module, the power supply to the 4G module by the power module is cut off, and the device enters a low power consumption mode and waits for the next wake-up.

6. The frequency sweeping method of the 4G frequency band analog frequency sweeping front-end device as claimed in claim 5, characterized in that: The method also includes eliminating static charge in the device through the ESD protection circuit module.

7. A frequency sweeping method for a 4G frequency band analog frequency sweeping front-end device as claimed in claim 4, characterized in that: The method comprises: The device is started by the switch module, and the power module is connected to provide a DC voltage for the device; the working state of the device is monitored by the watchdog circuit module, and when the device is not abnormal or faulty, the Bluetooth SOC module is connected; after the connection, the Bluetooth SOC module receives the DC voltage provided by the power module, and the Bluetooth SOC module starts to initialize and outputs a high level to the PMOS module. The power module supplies power to the 4G module through the PMOS module and the boost DCDC module, and the Bluetooth SOC module then supplies power to the 4G module through the UART The communication transmits the sweep instruction to the 4G module and the 5G detection circuit; the radio signal is received through the antenna module and output to the 4G module and the 5G detection circuit; the 4G module performs 4G communication through the antenna module and executes a 4G sweep operation; the 5G detection circuit performs a 5G sweep operation through the antenna module; after completing the 4G sweep operation and the 5G sweep operation, a low level is output to the PMOS module through the Bluetooth SOC module; the power supply to the 4G module by the power module is cut off, and the device enters a low power consumption mode and waits for the next wake-up.

8. The frequency sweeping method of the 4G frequency band analog frequency sweeping front-end device as claimed in claim 7, characterized in that: The method also includes eliminating static charge in the device through the ESD protection circuit module.

9. The frequency sweeping method of the 4G frequency band analog frequency sweeping front-end device as claimed in claim 7, characterized in that: The method also includes receiving the radio signal of the antenna module through the 5G detection circuit, filtering, amplifying and detecting the radio signal, sending the processed voltage signal to the Bluetooth SOC module for collection, calculating the collected data through the Bluetooth SOC module, and outputting 5G frequency band information.

10. The frequency sweeping method of the 4G frequency band analog frequency sweeping front-end device as claimed in claim 9, characterized in that: The method also includes eliminating static charge in the device through the ESD protection circuit module.

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