Miniaturized low-power-consumption Bluetooth module for 5G communication

Abstract

The utility model discloses a miniaturized low-power-consumption Bluetooth module for 5G communication, relates to the technical field of wireless communication, and solves the problems that an existing Bluetooth module is large in size, high in power consumption and poor in signal stability in a complex environment. The utility model discloses a miniaturized low-power-consumption Bluetooth module for 5G communication. The miniaturized low-power-consumption Bluetooth module comprises an integrated chip set, a dynamic beam forming antenna, a high-precision power management circuit, a dual-mode clock system and an electronic ink screen state display, according to the utility model, the Bluetooth baseband processor, the radio frequency module and the embedded auxiliary processor are highly integrated through a 5mm-level integrated packaging technology, and a metal shielding layer is arranged on the packaging surface to reduce electromagnetic interference; a self-adaptive antenna array modulated by adopting pi / 4-DQPSK / 8DPSK is adopted; the RTC module and the temperature compensation crystal oscillator are designed through double-clock redundancy, so that the full-temperature-range clock precision is + / -10 ppm, and meanwhile, the power management system of the muA-level quiescent current supports low-power-consumption awakening in a deep sleep mode.

Description

Technical Field

[0001] This utility model relates to the field of wireless communication technology, and more specifically to a miniaturized low-power Bluetooth module for 5G communication. Background Technology

[0002] Miniaturized low-power Bluetooth modules for 5G communication have a wide range of applications. These modules collect various data from IoT terminals, wearable devices, and industrial sensors and transmit the data wirelessly to cloud servers or control centers, enabling users to achieve device interconnection and remote monitoring. Bluetooth modules offer advantages such as low cost and strong compatibility. However, Bluetooth modules in 5G communication scenarios also have some drawbacks and limitations, including the following:

[0003] 1. The contradiction between size and power consumption: existing Bluetooth modules suffer from large chip package size and high sleep power consumption in terms of integration and energy efficiency optimization, resulting in shortened battery life of wearable devices and limited deployment space for industrial terminals; existing technologies also have relatively high power consumption.

[0004] 2. Poor adaptability to complex environments; the Bluetooth module's antenna anti-interference capability and dynamic beam adjustment capability are low, making it difficult for users to effectively manage signal quality in scenarios with multipath fading and co-channel interference; transmission capability is also low.

[0005] In summary, Bluetooth modules for 5G communication need continuous technological optimization to improve signal transmission stability, energy efficiency, and wide-temperature reliability in order to meet the high bandwidth, low latency, and wide connectivity requirements of 5G communication. Utility Model Content

[0006] The purpose of this invention is to propose a miniaturized low-power Bluetooth module based on integrated packaging and intelligent algorithms to meet the synergistic requirements of miniaturization, low power consumption and high reliability of devices in 5G communication scenarios.

[0007] To achieve the above-mentioned technical effects, the present invention adopts the following technical solution:

[0008] A miniaturized low-power Bluetooth module for 5G communication, the module comprising a housing, wherein the housing contains:

[0009] An integrated chipset, wherein the integrated chipset is a package structure with a size not exceeding 5mm×5mm×3mm, wherein a Bluetooth baseband processor and an RF module and an embedded auxiliary processor that communicate electrically with the Bluetooth baseband processor are disposed within the package structure, and the package surface of the package structure is provided with a metal shielding layer to reduce electromagnetic interference.

[0010] A wireless transmitting antenna is soldered to the housing and connected to the printed circuit board (PCB) within the integrated chipset. The wireless transmitting antenna uses differential quadrature phase shift keying (π / 4-DQPSK) or octal differential phase shift keying (8DPSK), communicates via Bluetooth 5.0, and is configured with a 2-3 Mbps rate mode in Bluetooth 5.0. It connects to an embedded auxiliary processor based on the wireless communication protocol of the IEEE 802.15.1 standard to analyze the channel status in real time and dynamically adjust the configuration parameters of the antenna array to optimize signal transmission quality.

[0011] The power management circuit includes a power sequencer and a DC-DC converter connected to the power sequencer, a low dropout linear regulator with output noise <10μVRMS and ripple rejection ratio >60dB, a warning device with quiescent current <1μA and wake-up time <1ms, and a multi-load switch.

[0012] The clock circuit provides a stable clock signal. The clock circuit has a built-in 32.768kHz crystal oscillator and an RTC module with power consumption of less than 500nA. The RTC module is used to provide a time reference in the deep sleep state of the Bluetooth module and can wake up the Bluetooth module at a preset time.

[0013] The status display module displays the working status of the Bluetooth module in real time. It includes an e-ink screen and a microcontroller. The microcontroller receives the status information of the Bluetooth module through the SPI interface, processes the signal, and then transmits it to the e-ink screen to drive the e-ink screen to change the displayed content.

[0014] The integrated chipset is connected to the wireless transmitting antenna, power management circuit, clock circuit and status display module respectively.

[0015] As a further description of the above technical solution:

[0016] The radio frequency module is model Qorvo QPM6621, and includes an antenna switch, a power amplifier, a low-noise amplifier, and a filter. When the radio frequency module transmits a signal, the output terminal of the power amplifier is connected to the input terminal of the filter, the output terminal of the filter is connected to the input terminal of the antenna switch, and the output terminal of the antenna switch is connected to the antenna electrical signal. When the radio frequency module receives a signal, the antenna output signal terminal is connected to the input terminal of the antenna switch, the output terminal of the antenna switch is connected to the input terminal of the filter, and the output terminal of the filter is connected to the input terminal of the low-noise amplifier.

[0017] As a further description of the above technical solution:

[0018] The Bluetooth baseband processor is a Nordic nRF5340, which includes an application processor, a network processor, a Bluetooth 5.0-5.2 communication interface, a hardware accelerator, and a compatible transmission channel; the application processor is a 128MHz Cortex-M33; and the network processor is a 64MHz Cortex-M33 processor.

[0019] As a further description of the above technical solution:

[0020] The embedded auxiliary processor includes a control unit and a processing unit, memory and storage, and an interface unit connected to the control unit. The processing unit adopts a dual-core structure, with models Arm Cortex-M55 and Ethos-U55 respectively, and is responsible for performing machine learning inference tasks. The memory and storage include an SRAM module and a Flash module. The interface unit includes a high-speed interface and a low-speed interface. The control unit includes a microcontroller and an interrupt controller.

[0021] As a further description of the above technical solution:

[0022] The wireless transmitting antenna includes a beamforming controller and an antenna unit and an interface unit that communicate with the beamforming controller. The antenna unit includes multiple antenna radiating elements, each of which includes a radiating patch, a phase shifter, and an attenuator. The beamforming controller has a built-in digital signal processor and a phase shift control circuit. The interface unit includes an SPI / I2C interface and a GPIO interface.

[0023] As a further description of the above technical solution:

[0024] The e-ink screen is model number Pervasive Displays E2310; the microcontroller is model number TIMSP430FR5994.

[0025] As a further description of the above technical solution:

[0026] The clock circuit also includes a temperature-compensated crystal oscillator, which is electrically connected to the RTC module. The temperature-compensated crystal oscillator monitors the ambient temperature in real time through a built-in temperature sensor and dynamically adjusts the frequency offset of the crystal oscillator.

[0027] The positive and beneficial technical effects of this utility model are as follows:

[0028] This invention solves the problems of traditional Bluetooth modules, such as size and power consumption contradictions, poor adaptability to complex environments, and insufficient reliability over a wide temperature range, through the collaborative design of an integrated chipset and a dynamic beamforming antenna, combined with the precise calibration of a dual-mode clock system. Through deep optimization of a μA-level power management system and an e-ink screen status display, it achieves the goals of minimizing sleep power consumption and enabling real-time user status monitoring. It uses differential quadrature phase shift keying (π / 4-DQPSK) or octal differential phase shift keying (8DPSK) for Bluetooth 5.0 data communication, with a 2-3 Mbps rate mode set in Bluetooth 5.0. It connects to an embedded auxiliary processor based on the IEEE 802.15.1 standard wireless communication protocol to analyze channel status in real time and dynamically adjust the antenna array configuration parameters to optimize signal transmission quality; this invention boasts strong communication capabilities. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0030] Figure 1 This is an overall structural diagram of a miniaturized low-power Bluetooth module for 5G communication according to this utility model;

[0031] Figure 2 This is a clock circuit diagram of a miniaturized low-power Bluetooth module for 5G communication according to this utility model;

[0032] Figure 3 This is a block diagram of the power management circuit for a miniaturized low-power Bluetooth module for 5G communication according to the present invention.

[0033] Figure 4 This is a circuit diagram of an RF module for a miniaturized low-power Bluetooth module for 5G communication according to the present invention.

[0034] Figure 5 This is a signal connection diagram of the radio frequency module receiving signals in a miniaturized low-power Bluetooth module for 5G communication according to this utility model.

[0035] Figure 6 This is a signal connection diagram of the radio frequency module receiving signals in a miniaturized low-power Bluetooth module for 5G communication according to this utility model.

[0036] In the diagram: Integrated chipset-1, wireless transmitting antenna-2, power management circuit-3, clock circuit-4, status display module-5, housing-6. Detailed Implementation

[0037] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0038] A miniaturized low-power Bluetooth module for 5G communication, the module comprising a housing 6, wherein the housing 6 contains:

[0039] An integrated chipset 1 is a package structure with a size not exceeding 5mm × 5mm × 3mm. The package structure houses a Bluetooth baseband processor, an RF module for electrical communication with the Bluetooth baseband processor, and an embedded auxiliary processor. The package surface is provided with a metal shielding layer to reduce electromagnetic interference. In a specific embodiment, System-in-Package (SiP) technology is used to integrate the Bluetooth baseband processor 11, the RF module 12, and the embedded auxiliary processor 13 into a 5mm × 5mm × 3mm miniature package, achieving high-density integration. The baseband processor 11 runs the Bluetooth 5.3 protocol stack, supports LE 2M / 5M / 1M multi-rate adaptive operation, and implements GFSK modulation and demodulation, link layer encryption (AES-128), and QoS management. The RF module 12 integrates PA / LNA circuitry and supports dynamic power adjustment (-20dBm to +) in the 2.4GHz ISM band. 4dBm), using time division duplex (TDD) mechanism to achieve full-duplex communication, auxiliary processor 13: based on ARM Cortex-M0+ core, running real-time operating system (RTOS), responsible for power management (supporting PSM / Park mode), sensor data preprocessing and security key storage. 5G collaborative communication achieves rate adaptation with the 5G baseband chip through the UART / PCIe interface (supporting data pass-through up to 2Mbps). It adopts dynamic time-division multiplexing technology to complete Bluetooth data transmission during 5G time slots, ensuring no interference with cellular communication. It supports Bluetooth broadcast enhancement based on 5G positioning (AoA / AoD positioning accuracy up to ±0.5 meters). Low power optimization introduces gated clock technology, automatically shutting down the clock of inactive modules. It adopts an intelligent wake-up mechanism, which triggers the main processor to wake up quickly (<1ms) by monitoring the ADC sampling signal (battery voltage, temperature, etc.) through the auxiliary processor. It supports adaptive transmit power control, dynamically adjusting the transmit power according to the RSSI value. The typical operating current is <6mA (1Mbps transmission). The metal shielding layer and the ground plane form a Faraday cage structure, with EMI suppression of over 40dB. It integrates ESD protection circuit (±8kV HBM), meets the IEC 61000-4-2 standard, and adopts flip-chip soldering technology to improve mechanical reliability and heat dissipation efficiency.

[0040] The wireless transmitting antenna 2 is soldered to the housing and connected to the printed circuit board (PCB) within the integrated chipset. The wireless transmitting antenna 2 uses differential quadrature phase shift keying (π / 4-DQPSK) or octal differential phase shift keying (8DPSK), based on Bluetooth 5.0 data communication, and is configured with a 2-3 Mbps rate mode in Bluetooth 5.0. It connects to the embedded auxiliary processor based on the IEEE 802.15.1 standard wireless communication protocol to analyze channel status in real time and dynamically adjust the antenna array configuration parameters to optimize signal transmission quality. In a specific embodiment, the HY-40R204WC integrated antenna can be used. Based on the information in Summary 1 of the search resources, this model uses a metal wire antenna (11.59×17.9×2.0 / 2.6mm), integrated into a 5mm×5mm×3mm package structure, supports the Bluetooth 5.0 protocol, and meets the requirements of miniaturization design. Its ceramic antenna version (HY-40R204CPA) can achieve a transmission distance of 300 meters, meeting the coverage requirements of 5G edge nodes. In π / 4-DQPSK modulation, differential quadrature phase shift keying (DQPSK) is used to transmit 2 bits of information through the phase difference between adjacent symbols (π / 4, 3π / 4, 5π / 4, 7π / 4). Based on the implementation principle in Abstract 9, the baseband processor 11 performs serial-to-parallel conversion, differential encoding, and shaping filtering on the data stream, and then generates a π / 4-DQPSK signal through quadrature modulation. In 8DPSK modulation, 3 bits of information are transmitted using 8 phase differences (45° intervals). Referring to the working mechanism in Abstract 10, phase ambiguity is resisted through differential phase encoding. This mode supports 2-3 Mbps rates in Bluetooth 5.0 through custom extensions, requiring the high-speed mode (such as LE 2M / 5M extension) to be enabled in the protocol stack of the baseband processor 11. During dynamic antenna array adjustment, the auxiliary processor 13, based on the IEEE 802.15.1 standard, periodically assesses channel quality by monitoring RSSI (Received Signal Strength), Bit Error Rate (BER), and Signal-to-Noise Ratio (SNR) in conjunction with 5G time slot intervals, through real-time channel state analysis. For dynamic parameter optimization, beamforming can be employed to achieve directional radiation and improve signal gain by adjusting the phase weights of the antenna array (e.g., phase shifter control). During power control, the transmit power is dynamically adjusted (from -20dBm to +4dBm) according to channel conditions to balance coverage and power consumption (refer to the power regulation characteristics of HY-40R204WC in Abstract 1). When switching modulation modes, if channel quality deteriorates, the modulation automatically downgrades from 8DPSK to π / 4-DQPSK to ensure transmission reliability.In a specific embodiment, the antenna is integrated with the PCB. The antenna is soldered onto the PCB of the integrated chipset 1 using a flip-chip process. A metal shielding layer (such as the nanoscale sputtering process described in Abstract 1) reduces EMI interference, while a reserved IPEX interface supports external antenna expansion (such as the dual-antenna design of PTR5303 in Abstract 3). The auxiliary processor 13 communicates with the baseband processor 11 through the UART / PCIe interface to acquire channel state data in real time, and controls the phase shifter and power amplifier (PA) of the antenna array through PWM to achieve a μs-level response.

[0041] The power management circuit 3 includes a power sequence controller and a DC-DC converter connected to the power sequence controller, a low dropout linear regulator with output noise <10μVRMS and ripple rejection ratio >60dB, a warning device with quiescent current <1μA and wake-up time <1ms, and a multi-load switch. In a specific embodiment, when the power sequence controller (31) manages the startup sequence, it controls the power-on sequence of the DC-DC (32) and LDO (33) through the PMBus protocol to ensure that the sensitive circuit starts after the main power supply is stable (e.g., the DC-DC outputs 3.3V first, and after a delay of 500μs, the LDO starts and outputs 1.8V). According to the load current change (monitored by ADC), the duty cycle of the DC-DC is adjusted in real time, and with the PSRR characteristic of the LDO (>60dB), voltage stability is achieved in the full load range, and dynamic voltage regulation is possible. The noise suppression system (33) adopts a three-stage filtering design. For example, the input stage uses a 47μF tantalum capacitor + 100nF ceramic capacitor, the intermediate stage uses an LCπ type filter (10μH inductor + 22μF capacitor), and the output stage integrates a low ESR capacitor (such as AVX TPS series) clock circuit 4 to provide a stable clock signal. The clock circuit 4 has a built-in 32.768kHz crystal oscillator and an RTC module with power consumption of less than 500nA. The RTC module is used to provide a time reference in the deep sleep state of the Bluetooth module and can wake up the Bluetooth module at a preset time.

[0042] The status display module 5 displays the real-time operating status of the Bluetooth module. It includes an e-ink screen and a microcontroller. The microcontroller receives the Bluetooth module's status information via an SPI interface, processes the signal, and transmits it to the e-ink screen to drive it to change the displayed content. In a specific embodiment, high-speed SPI communication protocol timing optimization is used, employing a 4-wire SPI mode (SCLK / MOSI / MISO / CS) with a clock frequency configured at 24MHz (e-ink screens support up to 30MHz). The integrated chipset 1 is connected to the wireless transmitting antenna 2, power management circuit 3, clock circuit 4, and status display module 5. When an abnormal state is detected (e.g., battery <5%), a screen flashing alarm is triggered (based on the SSD1680 flashing control register).

[0043] Furthermore, the RF module is model Qorvo QPM6621, and the RF module includes an antenna switch, a power amplifier, a low-noise amplifier, and a filter. When the RF module transmits a signal, the output terminal of the power amplifier is connected to the input terminal of the filter, the output terminal of the filter is connected to the input terminal of the antenna switch, and the output terminal of the antenna switch is connected to the antenna electrical signal. When the RF module receives a signal, the antenna output signal terminal is connected to the input terminal of the antenna switch, the output terminal of the antenna switch is connected to the input terminal of the filter, and the output terminal of the filter is connected to the input terminal of the low-noise amplifier.

[0044] In a specific embodiment, the RF module achieves efficient signal transmission and reception through a highly integrated design. When transmitting data, the application processor generates the data to be transmitted and transmits it to the network processor via shared memory. The network processor encapsulates the data into Bluetooth data packets and transmits them to the RF front-end via a digital baseband interface. The RF front-end modulates the data into an RF signal and transmits it through the antenna. When receiving data, the RF front-end receives external signals and demodulates them into baseband signals, transmitting them to the network processor via the digital baseband interface. The network processor parses the Bluetooth data packets, extracts valid data, and transmits it to the application processor via shared memory or an IPC mechanism. The application processor processes the received data and executes corresponding tasks according to application requirements. The antenna switch of the RF module quickly switches between transmit and receive modes, ensuring efficient system operation in different working modes. The antenna switch design optimizes isolation and insertion loss to reduce signal loss and interference.

[0045] Furthermore, the Bluetooth baseband processor is a Nordic nRF5340, which includes an application processor, a network processor, a Bluetooth 5.0-5.2 communication interface, a hardware accelerator, and a compatible transmission channel; the application processor is a 128MHz Cortex-M33; and the network processor is a 64MHz Cortex-M33 processor.

[0046] In a specific embodiment, the Nordic nRF5340 Bluetooth baseband processor, through its dual-core architecture and rich feature set, achieves efficient task allocation and multi-protocol support. The 128MHz Cortex-M33 application processor handles complex application processing, including audio data decoding, sensor information acquisition, and user interface management; the 64MHz Cortex-M33 network processor runs the Bluetooth protocol stack, ensuring low power consumption and efficient communication; the CryptoCell-312 hardware accelerator accelerates the execution of encryption algorithms; and the Bluetooth 5.0-5.2 communication interface supports multiple protocols, including Bluetooth Mesh, Thread, and Zigbee.

[0047] Furthermore, the embedded auxiliary processor includes a control unit and a processing unit, memory and storage, and an interface unit connected to the control unit. The processing unit adopts a dual-core structure, with models Arm Cortex-M55 and Ethos-U55 respectively, and is responsible for performing machine learning inference tasks. The memory and storage include an SRAM module and a Flash module. The interface unit includes a high-speed interface and a low-speed interface. The control unit includes a microcontroller and an interrupt controller.

[0048] In a specific embodiment, the processing unit is connected to SRAM and Flash via a high-speed data bus to achieve rapid access to model parameters and computational data; it is also connected to the Bluetooth baseband processor and RF module via the high-speed data bus to exchange channel status data and optimization instructions; the control unit is connected to the processing unit and interface unit via an internal bus to coordinate task execution and data transmission; and it is connected to the Bluetooth baseband processor and RF module via an interrupt signal to achieve real-time task response. The embedded auxiliary processor, through its dual-core structure and multi-functional design, achieves efficient machine learning inference and system control. The processing unit employs a combination of Arm Cortex-M55 and Ethos-U55. The Cortex-M55, extended with Helium vector processing, enhances DSP and ML performance, supporting efficient 8-bit, 16-bit, and 32-bit fixed-point data processing. The Ethos-U55, as a dedicated microNPU, works in conjunction with the Cortex-M55 to boost ML inference performance by up to 480 times, while significantly reducing power consumption and chip area. The memory and storage modules include SRAM and Flash for storing models and data, while the high-speed and low-speed interfaces of the interface unit support flexible connections to external devices.

[0049] Furthermore, the wireless transmitting antenna 2 includes a beamforming controller and an antenna unit and an interface unit that communicate with the beamforming controller. The antenna unit includes multiple antenna radiating elements, each of which includes a radiating patch, a phase shifter, and an attenuator. The beamforming controller has a built-in digital signal processor and a phase shift control circuit. The interface unit includes an SPI / I2C interface and a GPIO interface.

[0050] In a specific embodiment, the wireless transmitting antenna 2 achieves precise signal direction control and efficient energy transmission through a beamforming controller. The built-in digital signal processor of the beamforming controller is responsible for real-time processing and optimization of the transmitted signal, while the phase-shifting control circuit precisely adjusts the phase and amplitude of each antenna radiating element to ensure that the signal forms a strong beam in a specific direction, improving signal transmission efficiency and coverage. Multiple radiating elements of the antenna unit transmit signals through radiating patches, and phase shifters and attenuators are used to adjust the phase and amplitude of the signal to achieve precise beamforming. The SPI / I2C interface of the interface unit is used for high-speed data communication with an external control unit, while the GPIO interface is used for low-speed control and status monitoring with other devices.

[0051] Furthermore, the electronic ink screen is model number Pervasive Displays E2310; the microcontroller is model number TI MSP430FR5994.

[0052] In a specific embodiment, the Pervasive Displays E2310 e-ink screen, with a high resolution of 111 dpi and bistable characteristics, can clearly display fine patterns and text, enabling low-power static display applications. The TIMSP430FR5994 microcontroller, through its low-power design and embedded FRAM memory, provides efficient driving and data processing capabilities for the e-ink screen. The low-power accelerator (LEA) optimizes signal processing tasks, further enhancing system performance.

[0053] Furthermore, the clock circuit 4 also includes a temperature-compensated crystal oscillator, which is electrically connected to the RTC module. The temperature-compensated crystal oscillator monitors the ambient temperature in real time through a built-in temperature sensor and dynamically adjusts the frequency offset of the crystal oscillator.

[0054] In a specific embodiment, the RTC module initiates a timing function to provide a basic time reference for the device; the temperature-compensated crystal oscillator is electrically connected to the RTC module to monitor changes in ambient temperature in real time; the temperature sensor in the temperature-compensated crystal oscillator continuously collects temperature data and transmits the data to the built-in phase-shift control circuit; the phase-shift control circuit dynamically adjusts the frequency offset of the crystal oscillator according to temperature changes to ensure the stability of the output frequency.

[0055] The positive and beneficial technical effects of this utility model are as follows:

[0056] This invention solves the problems of traditional Bluetooth modules, such as size and power consumption contradictions, poor adaptability to complex environments, and insufficient reliability over a wide temperature range, through the collaborative design of an integrated chipset and a dynamic beamforming antenna, combined with the precise calibration of a dual-mode clock system. Through deep optimization of a μA-level power management system and an e-ink screen status display, it achieves the goals of minimizing sleep power consumption and enabling real-time user status monitoring. It uses differential quadrature phase shift keying (π / 4-DQPSK) or octal differential phase shift keying (8DPSK) for Bluetooth 5.0 data communication, with a 2-3 Mbps rate mode set in Bluetooth 5.0. It connects to an embedded auxiliary processor based on the IEEE 802.15.1 standard wireless communication protocol to analyze channel status in real time and dynamically adjust the antenna array configuration parameters to optimize signal transmission quality; this invention boasts strong communication capabilities.

[0057] This invention is the first to integrate π / 4-DQPSK and 8DPSK in a Bluetooth module, achieving a balance between transmission efficiency and anti-interference capability at a rate of 2-3 Mbps through dynamic switching of modulation methods. Combined with the TDD mechanism of 5G cellular communication, antenna parameters are adjusted during time slots to avoid interference with cellular signals (as described in the collaborative design concept of 5G base station encapsulation in Abstract 6). Utilizing the real-time monitoring function of the auxiliary processor 13, antenna array adjustment is activated only during data transmission, and unnecessary modules are shut down during sleep mode, achieving an average power consumption of <6mA.

[0058] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these specific embodiments are merely illustrative. Those skilled in the art can omit, substitute, and modify the details of the above methods and systems in various ways without departing from the principles and essence of this utility model. For example, combining the above method steps to perform substantially the same function and achieve substantially the same result according to substantially the same method falls within the scope of this utility model. Therefore, the scope of this utility model is defined only by the appended claims.

Claims

1. A miniaturized low power Bluetooth module for 5G communication, the module comprising a housing, characterized in that: The shell comprises: An integrated chip set (1) is a package structure with a size of not more than 5mm*5mm*3mm, a Bluetooth baseband processor and a radio frequency module and an embedded auxiliary processor in electrical communication with the Bluetooth baseband processor are arranged in the package structure, and a metal shielding layer for reducing electromagnetic interference is arranged on the package surface of the package structure; A wireless transmitting antenna (2) is welded on the shell and connected with a printed circuit board (PCB) in the integrated chip set, the wireless transmitting antenna (2) uses differential quadrature phase shift keying (π / 4-DQPSK) or octal differential phase shift keying (8DPSK), is based on Bluetooth 5.0 data communication, and is arranged in a 2-3Mbps rate mode in Bluetooth 5.0, a wireless communication protocol based on IEEE 802.15.1 standard is connected with the embedded auxiliary processor, a channel state is analyzed in real time, configuration parameters of an antenna array are dynamically adjusted, and signal transmission quality is optimized; A power management circuit (3) includes a power timing controller, a DC-DC converter connected with the power timing controller, a low dropout linear regulator with an output noise of <10μVRMS and a ripple rejection ratio of >60dB, a pre-alarm with a static current of <1μA and a wake-up time of <1ms, and a multi-path load switch; A clock circuit (4) provides a stable clock signal, a 32.768kHz crystal oscillator is built in the clock circuit (4), and a RTC module with a power consumption of <500nA is used to provide a time reference in a deep sleep state of the Bluetooth module and wake up the Bluetooth module at a preset time point; A state display module (5) displays a working state of the Bluetooth module in real time, includes an electronic ink screen and a microcontroller, the microcontroller receives state information of the Bluetooth module through an SPI interface, then transmits the signal to the electronic ink screen after signal processing, and drives the electronic ink screen to change display content; The integrated chip set (1) is connected with the wireless transmitting antenna (2), the power management circuit (3), the clock circuit (4) and the state display module (5) respectively. 2.The miniaturized low-power Bluetooth module for 5G communication of claim 1, wherein: The radio frequency module is Qorvo QPM6621, and the radio frequency module includes an antenna switching switch, a power amplifier, a low noise amplifier and a filter, when the radio frequency module transmits a signal, an output end of the power amplifier is connected with an input end of the filter, an output end of the filter is connected with an input end of the antenna switching switch, an output end of the antenna switching switch is connected with an antenna electrical signal, when the radio frequency module receives a signal, an antenna output signal end is connected with an input end of the antenna switching switch, an output end of the antenna switching switch is connected with an input end of the filter, and an output end of the filter is connected with an input end of the low noise amplifier.

3. The small-sized low-power Bluetooth module for 5G communication according to claim 1, characterized in that: The model of the Bluetooth baseband processor is Nordic nRF5340, and the Bluetooth baseband processor comprises an application processor, a network processor, a Bluetooth 5.0-5.2 communication interface, a hardware accelerator and a compatible transmission channel; the model of the application processor is Cortex-M33 of 128 MHz; the model of the network processor is Cortex-M33 processor of 64 MHz. 4.The miniaturized low-power Bluetooth module for 5G communication of claim 1, wherein: The embedded auxiliary processor comprises a control unit and a processing unit, a memory and storage and an interface unit connected with the control unit, the processing unit adopts a dual-core structure, and the models are Arm Cortex-M55 and Ethos-U55 respectively, and the processing unit is responsible for executing machine learning inference tasks; the memory and storage comprise an SRAM module and a Flash module; the interface unit comprises a high-speed interface and a low-speed interface; the control unit comprises a microcontroller and an interrupt controller. 5.The miniaturized low-power Bluetooth module for 5G communication of claim 1, wherein: The wireless transmitting antenna (2) comprises a beamforming controller, an antenna unit and an interface unit in communication with the beamforming controller, the antenna unit comprises a plurality of antenna radiation elements, each element comprising a radiation patch, a phase shifter and an attenuator; the beamforming controller is built-in with a digital signal processor and a phase shift control circuit; the interface unit comprises an SPI / I2C interface and a GPIO interface. 6.The miniaturized low-power Bluetooth module for 5G communication of claim 1, wherein: The model of the electronic ink screen is Pervasive Displays E2310; the model of the microcontroller is TI MSP430FR5994. 7.The miniaturized low-power Bluetooth module for 5G communication of claim 1, wherein: The clock circuit (4) further comprises a temperature compensation crystal oscillator, which is electrically connected with the RTC module, monitors the environmental temperature in real time through a built-in temperature sensor, and dynamically adjusts the frequency offset of the crystal oscillator.

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