Wireless transceiving device of mobile communication terminal

Abstract

The invention provides a wireless transceiving device of a mobile communication terminal, and relates to the technical field of mobile communication. The wireless transmitting and receiving device of the mobile communication terminal comprises an antenna module, a radio frequency transmitting and receiving module, a baseband processing module, an interference suppression module, a power management module and a synchronous calibration module, the antenna module is electrically connected with the radio frequency transmitting and receiving module and used for receiving external wireless signals and transmitting the external wireless signals to the radio frequency transmitting and receiving module, and the baseband processing module is electrically connected with the baseband processing module. And the antenna module is used for receiving a to-be-transmitted signal output by the radio frequency transceiving module and radiating the to-be-transmitted signal to the outside, adopts a multi-band adaptive antenna array and comprises a plurality of radiating antennas, an antenna change-over switch and an impedance matching network. Through modular design, in combination with a self-adaptive interference suppression algorithm, a dynamic power control strategy and a precise channel compensation algorithm, and in combination with a quantitative calculation principle formula, efficient, stable and low-power-consumption transceiving of wireless signals is realized, the practicability and expandability of the device are improved, and the requirements of a new-generation mobile communication system are met.

Description

Technical Field

[0001] This invention relates to the field of mobile communication technology, specifically to a wireless transceiver device for a mobile communication terminal. Background Technology

[0002] With the rapid development of mobile communication technology, 5G communication systems have gradually become widespread, and the application scenarios of mobile communication terminals are becoming increasingly extensive, which in turn raises the performance requirements for wireless transceivers. As a core component of mobile communication terminals, wireless transceivers undertake key functions such as transmitting and receiving wireless signals, modulation and demodulation, and channel coding and decoding. Their performance directly determines the communication quality, transmission rate, power consumption level, and anti-interference capability of mobile communication terminals. Currently, the transmit and receive links of existing mobile communication terminal wireless transceivers typically share some radio frequency components, causing the transmitted signal to leak into the receive link, generating co-channel interference and intermodulation interference, reducing the signal-to-noise ratio of the received signal, and affecting communication quality. This interference problem is particularly prominent in high-frequency, high-power transmission scenarios. Furthermore, wireless signals are susceptible to path loss, multipath fading, and shadow fading during transmission, leading to signal amplitude and phase distortion. Existing devices have relatively simple channel compensation algorithms, which cannot compensate for fading signals in real time and accurately, resulting in a high bit error rate. In multi-frequency, multi-standard communication scenarios, existing devices have slow channel switching response speeds and are prone to signal interruption and sudden drops in transmission rate during switching, making them unable to adapt to dynamically changing communication environments.

[0003] To address the aforementioned technical problems, technicians in related fields have made a series of improvements. For example, adding isolation devices can reduce transmission and reception interference, but this increases the device's size and cost; simple power adjustment can reduce power consumption, but the adjustment accuracy is low and dynamic optimization cannot be achieved; fixed filtering algorithms can suppress interference, but their adaptability is poor and they cannot cope with complex and ever-changing interference scenarios. To date, no wireless transceiver device has emerged that can simultaneously solve all the above-mentioned defects and possesses quantified computational principles, clear steps, and stable performance. Therefore, this invention proposes a wireless transceiver device and method for mobile communication terminals. By designing a novel hardware architecture and optimized algorithm flow, combined with quantified computational principle formulas, it achieves synergistic optimization of interference suppression, low power consumption control, high-speed transmission, and stable channel switching, filling a gap in existing technologies. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a wireless transceiver device for mobile communication terminals. The aim is to overcome the technical defects of existing wireless transceiver devices for mobile communication terminals, such as severe transmission and reception interference, excessive power consumption, weak anti-fading capability, unstable multi-channel switching, and low transmission rate. This invention provides a wireless transceiver device and method for mobile communication terminals. Through modular design, combined with adaptive interference suppression algorithms, dynamic power control strategies, and precise channel compensation algorithms, along with quantitative calculation principle formulas, this device achieves efficient, stable, and low-power transmission and reception of wireless signals. Furthermore, it clarifies the working steps of the device, improving its practicality and scalability, and adapting to the needs of next-generation mobile communication systems.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A wireless transceiver device for a mobile communication terminal includes an antenna module, a radio frequency transceiver module, a baseband processing module, an interference suppression module, a power management module, and a synchronization calibration module. The antenna module is electrically connected to the radio frequency transceiver module and is used to receive external wireless signals and transmit them to the radio frequency transceiver module. At the same time, it receives the signal to be transmitted output by the radio frequency transceiver module and radiates it to the outside. The antenna module adopts a multi-band adaptive antenna array, including multiple radiating antennas, an antenna switching switch, and an impedance matching network.

[0007] The radio frequency transceiver module includes a transmit link, a receive link, and a local oscillator unit. The radio frequency transceiver module is electrically connected to the baseband processing module and is used to downconvert the radio frequency signal received by the antenna module to a baseband signal and transmit it to the baseband processing module, and upconvert the baseband signal output by the baseband processing module to a radio frequency signal and transmit it to the antenna module.

[0008] The interference suppression module is electrically connected to the radio frequency transceiver module and the baseband processing module respectively, and is used to suppress co-frequency interference, intermodulation interference and external environmental interference in the radio frequency transceiver link.

[0009] The synchronization calibration module includes a frequency synchronization unit, a phase synchronization unit, and a time synchronization unit. The synchronization calibration module is electrically connected to the radio frequency transceiver module and the baseband processing module, respectively, to realize frequency synchronization, phase synchronization, and time synchronization of the signal, and to ensure the consistency of the transmitted and received signals.

[0010] The power management module adopts a dynamic power management strategy, including a DC-DC converter, a power switch and a power consumption detection unit. The power management module is electrically connected to the antenna module, the radio frequency transceiver module, the baseband processing module, the interference suppression module and the synchronization calibration module, respectively, to provide stable power supply to each module and dynamically adjust the power supply according to the working status of each module.

[0011] The baseband processing module includes a modulation unit, a demodulation unit, a channel coding unit, a channel decoding unit, and a control unit, which are used to realize signal modulation and demodulation, channel coding and decoding, and coordinated control of each module.

[0012] Furthermore, the radiating antenna of the antenna module adopts a microstrip patch antenna, operating in a frequency band covering 700MHz-6GHz, compatible with 5G Sub-6GHz, millimeter wave, and existing 2G / 3G / 4G frequency bands. The antenna switching switch of the antenna module adopts an SP4T RF switch, used to switch different radiating antennas according to the control signal of the baseband processing module control unit, realizing multi-channel adaptive switching. The impedance matching network of the antenna module adopts an L-type matching circuit, used to adjust the input impedance of the antenna so that the antenna input impedance matches the output impedance of the RF transceiver module by 50Ω. Its reflection coefficient is expressed by the formula:

[0013] ;

[0014] in The reflection coefficient, This is the antenna input impedance. The output impedance of the RF transceiver module, and it satisfies... .

[0015] Furthermore, the transmit link of the RF transceiver module includes a power amplifier, a transmit filter, and an up-converter; the receive link of the RF transceiver module includes a low-noise amplifier, a receive filter, and a down-converter; the local oscillator unit of the RF transceiver module includes a phase-locked loop and a voltage-controlled oscillator, used to provide a stable local oscillator signal for the up-converter and down-converter; the mixing gain formula of the up-converter is:

[0016] ;

[0017] in This refers to the mixing gain of the up-converter. This refers to the peak voltage of the RF signal output by the up-converter. The peak voltage of the input baseband signal to the up-converter;

[0018] The formula for calculating the noise figure of a down-converter is:

[0019] ;

[0020] in, The noise figure of the downconverter. Input noise power to the downconverter The output noise power of the downconverter. This refers to the mixing gain of the downconverter.

[0021] The formula for calculating the locking time of a phase-locked loop is:

[0022] ;

[0023] in This refers to the phase-locked loop (PLL) locking time. The damping coefficient is... It is the natural angular frequency. This represents the frequency offset of the local oscillator signal. For the sensitivity of the voltage-controlled oscillator, For phase detector gain;

[0024] The formula for calculating the output power of a power amplifier is:

[0025] ;

[0026] in, For the output power of the power amplifier, Input power to the power amplifier This represents the gain of the power amplifier.

[0027] Furthermore, the baseband processing module adopts an FPGA+DSP architecture. The FPGA is responsible for high-speed parallel processing such as signal modulation and demodulation, channel coding and decoding, while the DSP is responsible for the control of each module, algorithm calculation, and parameter adjustment. The modulation unit adopts an orthogonal amplitude modulation algorithm, supporting three modulation modes: 16QAM, 64QAM, and 256QAM. The signal modulation calculation formula is as follows:

[0028] ;

[0029] in, This is the modulated baseband signal. For in-phase branch signals, For orthogonal branch signals, This refers to the baseband carrier frequency.

[0030] The channel coding unit employs a belief propagation algorithm to decode the demodulated coded signal and restore it to the original information bits. The iterative update formula for the BP algorithm is as follows:

[0031] ;

[0032] ;

[0033] in For variable nodes To the verification node The message being delivered For verification nodes To variable node The message being delivered For variable nodes The set of adjacent verification nodes, For verification nodes The set of adjacent variable nodes, This is the normalization coefficient.

[0034] Furthermore, the interference suppression module employs an adaptive minimum mean square error filtering algorithm, combined with an interference detection unit. The interference detection unit detects the strength, frequency, and type of interference signals in the received signal and transmits the detection results to the baseband processing module. The weight update formula for the minimum mean square error filtering algorithm is:

[0035] ;

[0036] in, For the first The filter weight vector at time t. For the first The filter weight vector at time t. Step size factor For the first The filtered error signal at time 10:00. For the first The filter input signal vector at time t;

[0037] The formula for calculating the filtering error signal is:

[0038] ;

[0039] in, For the first Expected signal at time, For the first The transpose of the filter weight vector at time step;

[0040] The formula for calculating the interference suppression ratio is:

[0041] ;

[0042] That For interference suppression ratio, The power of the interference signal input to the interference suppression module. This refers to the power of the interference signal output by the interference suppression module.

[0043] Furthermore, the frequency synchronization unit of the synchronization calibration module employs a carrier recovery algorithm, and the formula for calculating the frequency offset is:

[0044] ;

[0045] in, For symbol period, For the first The received signal at any time For the first The conjugate of the received signal at all times, For the expectation operator, For phase operators;

[0046] The formula for calculating the received signal after frequency compensation is:

[0047] ;

[0048] in, The imaginary unit;

[0049] The phase synchronization unit uses the Costas ring algorithm, and the formula for calculating the phase offset is:

[0050] ;

[0051] in, For the first The in-phase component of the received signal at all times. For the first Quadrature components of the received signal at any given time, and in-phase components after phase compensation and orthogonal components The calculation formula is:

[0052] ;

[0053] ;

[0054] The time synchronization unit uses a sliding correlation algorithm, and the formula for calculating the sliding correlation value is:

[0055] ;

[0056] in, For sliding delay, The length of the synchronization sequence. For delay The subsequent local synchronization sequence, when When the maximum value is reached, the corresponding This is a synchronization delay, used to achieve time synchronization.

[0057] Furthermore, the power consumption detection unit of the power management module is used to detect the real-time power consumption of each module and transmit the detection results to the control unit of the baseband processing module. The power consumption control calculation principle formula of the power management module is as follows:

[0058] ;

[0059] in, For the conversion efficiency of DC-DC converters, For the output power of the DC-DC converter, The input power of the DC-DC converter and the conversion efficiency of the DC-DC converter. .

[0060] Furthermore, the control unit of the baseband processing module can receive the synchronization signal from the synchronization calibration module and the interference detection signal from the interference suppression module, and output control signals to realize antenna switching, frequency band selection, power adjustment, interference suppression algorithm parameter configuration, and multi-channel switching. During multi-channel switching, the control unit can adjust the parameters of the antenna module, RF transceiver module, modulation unit, channel coding unit, and interference suppression module to ensure stable operation of the device after switching and to maintain the phase-locked loop locking time. .

[0061] This invention provides a wireless transceiver device for a mobile communication terminal. It has the following beneficial effects:

[0062] 1. This invention provides a wireless transceiver device for a mobile communication terminal. By employing an interference suppression module with an adaptive LMS filtering algorithm, combined with an interference detection unit, it can detect and suppress various interference signals in real time, achieving a quantitative interference suppression effect with an interference suppression ratio of over 35dB. This effectively solves the problem of severe interference in existing devices, improves the signal-to-noise ratio and communication quality of the received signal, and significantly reduces power consumption. The power consumption detection unit monitors the power consumption of each module in real time and dynamically adjusts the power supply parameters, greatly improving the conversion efficiency of the DC-DC converter. The total power consumption of the device is reduced by more than 30%, extending the battery life of the mobile communication terminal and meeting the long battery life requirements of portable terminals and IoT terminals.

[0063] 2. This invention provides a wireless transceiver device for a mobile communication terminal, featuring high signal transmission rate and strong anti-fading capability. It employs QAM modulation and LDPC coding algorithms to quantify modulation efficiency and coding performance, achieving a modulation efficiency of 8 bits / s / Hz and increasing the signal transmission rate by over 40%, meeting the high-speed transmission requirements of 5G / 6G systems. Through frequency, phase, and time synchronization calibration by a synchronization calibration module, combined with the LDPC coding and decoding algorithm, it can compensate for fading distortion during wireless signal transmission in real time. The demodulation error rate is below 10⁻ when SNR ≥ 5dB. 6 This improves the stability of signal transmission.

[0064] 3. This invention provides a wireless transceiver device for mobile communication terminals, which features stable multi-channel switching, an optimized phase-locked loop design with a locking time ≤10μs, and, combined with an antenna switching switch and adaptive parameter adjustment, can quickly complete multi-band and multi-channel switching. The signal is uninterrupted and the transmission rate is stable during the switching process. It is adaptable to dynamically changing communication environments, has strong practicality and good scalability, supports 5G / 6G and existing 2G / 3G / 4G frequency bands, is suitable for various mobile communication terminals, and facilitates subsequent function upgrades and performance optimization. Attached Figure Description

[0065] Figure 1 This is a flowchart of the signal transmission steps of the wireless transceiver device of the mobile communication terminal of the present invention;

[0066] Figure 2 This is a flowchart of the signal receiving steps of the wireless transceiver device of the mobile communication terminal of the present invention.

[0067] Figure 3 This is a flowchart of the multi-signal switching steps of the wireless transceiver device for the mobile communication terminal of the present invention. Detailed Implementation

[0068] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0069] Example 1:

[0070] This invention provides a wireless transceiver device for a mobile communication terminal, including an antenna module, a radio frequency transceiver module, a baseband processing module, an interference suppression module, a power management module, and a synchronization calibration module. The antenna module is electrically connected to the radio frequency transceiver module and is used to receive external wireless signals and transmit them to the radio frequency transceiver module. At the same time, it receives the signal to be transmitted output by the radio frequency transceiver module and radiates it to the outside. The antenna module adopts a multi-band adaptive antenna array, including multiple radiating antennas, an antenna switching switch, and an impedance matching network.

[0071] The radio frequency transceiver module includes a transmit link, a receive link, and a local oscillator unit. The radio frequency transceiver module is electrically connected to the baseband processing module and is used to downconvert the radio frequency signal received by the antenna module to a baseband signal and transmit it to the baseband processing module, and to upconvert the baseband signal output by the baseband processing module to a radio frequency signal and transmit it to the antenna module.

[0072] The interference suppression module is electrically connected to the RF transceiver module and the baseband processing module respectively, and is used to suppress co-channel interference, intermodulation interference and external environmental interference in the RF transceiver link.

[0073] The synchronization calibration module includes a frequency synchronization unit, a phase synchronization unit, and a time synchronization unit. The synchronization calibration module is electrically connected to the RF transceiver module and the baseband processing module, respectively, to achieve frequency synchronization, phase synchronization, and time synchronization of the signal, ensuring the consistency of the transmitted and received signals.

[0074] The power management module adopts a dynamic power management strategy, including a DC-DC converter, a power switch and a power consumption detection unit. The power management module is electrically connected to the antenna module, the RF transceiver module, the baseband processing module, the interference suppression module and the synchronization calibration module, respectively, to provide stable power supply to each module and dynamically adjust the power supply according to the working status of each module.

[0075] The baseband processing module has built-in modulation unit, demodulation unit, channel coding unit, channel decoding unit and control unit, which are used to realize signal modulation and demodulation, channel coding and decoding and coordinated control of each module.

[0076] The radiating antenna of the antenna module adopts a microstrip patch antenna, which operates in the frequency band of 700MHz-6GHz and is compatible with 5G Sub-6GHz, millimeter wave and existing 2G / 3G / 4G frequency bands. The antenna switching switch of the antenna module adopts SP4T RF switch, which is used to switch different radiating antennas to work according to the control signal of the baseband processing module control unit to realize multi-channel adaptive switching. The impedance matching network of the antenna module adopts L-type matching circuit to adjust the input impedance of the antenna so that the input impedance of the antenna matches the output impedance of the RF transceiver module by 50Ω.

[0077] The transmit link of the RF transceiver module includes a power amplifier, a transmit filter, and an up-converter. The receive link of the RF transceiver module includes a low-noise amplifier, a receive filter, and a down-converter. The local oscillator unit of the RF transceiver module includes a phase-locked loop and a voltage-controlled oscillator, which are used to provide a stable local oscillator signal for the up-converter and the down-converter.

[0078] The baseband processing module adopts an FPGA+DSP architecture. The FPGA is responsible for high-speed parallel processing such as signal modulation and demodulation, channel coding and decoding, while the DSP is responsible for the control of each module, algorithm operation and parameter adjustment. The modulation unit adopts the quadrature amplitude modulation algorithm and supports three modulation modes: 16QAM, 64QAM and 256QAM.

[0079] The interference suppression module adopts an adaptive minimum mean square error filtering algorithm, combined with an interference detection unit. The interference detection unit is used to detect the strength, frequency and type of interference signals in the received signal, and transmits the detection results to the baseband processing module.

[0080] The power consumption detection unit of the power management module is used to detect the real-time power consumption of each module and transmit the detection results to the control unit of the baseband processing module;

[0081] The baseband processing module's control unit can receive synchronization signals from the synchronization calibration module and interference detection signals from the interference suppression module. It outputs control signals to perform antenna switching, frequency band selection, power adjustment, interference suppression algorithm parameter configuration, and multi-channel switching. During multi-channel switching, the control unit can adjust the parameters of the antenna module, RF transceiver module, modulation unit, channel coding unit, and interference suppression module to ensure stable operation of the device after switching and to maintain the phase-locked loop lock time. .

[0082] Example 2:

[0083] like Figure 1 As shown, this embodiment of the invention provides a wireless transceiver device for a mobile communication terminal. The signal transmission method of this device includes the following steps:

[0084] Step 1: Device initialization;

[0085] The control unit of the baseband processing module initializes the parameters of each module, including the operating frequency band of the antenna module, the local oscillator frequency of the RF transceiver module, the output power of the power amplifier, the modulation mode of the modulation unit, the coding rate of the channel coding unit, the filtering parameters of the interference suppression module, and the power supply parameters of the power management module, thus completing the device startup initialization.

[0086] Step 2: Signal encoding;

[0087] The baseband processing module receives the digital information to be transmitted output by the main control unit of the mobile communication terminal, encodes it using the LDPC coding algorithm by the channel coding unit, determines the coding rate, and transmits the encoded codeword signal to the modulation unit.

[0088] Step 3: Signal modulation;

[0089] The modulation unit uses the QAM modulation algorithm to modulate the encoded codeword signal, generate the modulated analog baseband signal, determine the modulation efficiency, and transmit the modulated baseband signal to the transmit link of the RF transceiver module;

[0090] Step 4: The local oscillator signal is stable;

[0091] The local oscillator unit of the RF transceiver module locks the output frequency of the voltage-controlled oscillator by a phase-locked loop according to the control signal of the control unit. After ensuring that the local oscillator signal is stable, it outputs the local oscillator signal to the upconverter of the transmit link.

[0092] Step 5: Up-convert the signal;

[0093] The upconverter receives the baseband signal output from the modulation unit and the local oscillator signal output from the local oscillator unit, performs mixing and upconversion processing, determines the mixing gain of the upconverter, obtains the radio frequency transmission signal, and transmits it to the power amplifier.

[0094] Step 6: Signal power amplification;

[0095] The power amplifier receives the radio frequency transmission signal output from the up-converter, amplifies it, determines the output power of the power amplifier, and transmits the amplified radio frequency transmission signal to the transmission filter.

[0096] Step 7: Filter the transmitted signal;

[0097] The transmit filter filters the RF transmit signal output by the power amplifier, removing noise and interference signals, and then transmits the filtered RF transmit signal to the interference suppression module.

[0098] Step 8: Suppress transmission interference;

[0099] The interference suppression module uses the LMS filtering algorithm to suppress interference in the filtered RF transmission signal, updates the filter weight vector, calculates the filtering error signal, and ensures that the interference suppression effect meets the design requirements before transmitting the processed RF transmission signal to the antenna module.

[0100] Step 9: Signal radiating transmission;

[0101] The antenna module's antenna switching switch switches to the corresponding radiating antenna according to the control signal from the control unit. The impedance matching network adjusts the antenna input impedance to match the output impedance of the RF transceiver module, and then the RF transmission signal is radiated outward through the radiating antenna.

[0102] Step 10: Dynamic power consumption control;

[0103] The power management module's power consumption detection unit monitors the power consumption of each module in real time, calculates the total power consumption of the device, and transmits the detection results to the control unit. The control unit adjusts the output voltage and current of the DC-DC converter based on the workload of each module, determines the conversion efficiency of the DC-DC converter, and achieves dynamic power consumption control.

[0104] Step 11: Transmit signal synchronization compensation;

[0105] The frequency synchronization unit and phase synchronization unit of the synchronization calibration module detect the frequency and phase of the radio frequency transmission signal in real time. If a frequency offset or phase offset is detected, the offset is calculated and fed back to the control unit. The control unit adjusts the local oscillator frequency of the local oscillator unit and the modulation parameters of the modulation unit to compensate for the frequency and phase offset and ensure the stability of the transmission signal.

[0106] Step 12: Send a loop check;

[0107] Determine if there is still digital information to be sent. If yes, return to the signal encoding step and continue sending signals; otherwise, the control unit controls each module to enter a low-power idle state, waiting for the next sending command.

[0108] Example 3:

[0109] like Figure 2 As shown, this embodiment of the invention provides a wireless transceiver device for a mobile communication terminal. The signal receiving method of this device includes the following steps:

[0110] Step 1: Device initialization;

[0111] The baseband processing module's control unit initializes the parameters of each module, following the same initialization steps as the signal transmission method, thus completing the device's startup initialization.

[0112] Step 2; Signal reception matching;

[0113] The antenna module's radiating antenna receives external wireless signals in real time. The impedance matching network adjusts the antenna's input impedance to match the input impedance of the RF transceiver module, reducing signal reflection loss. Then, the received wireless signal is transmitted to the RF transceiver module's receiving link via the antenna switching switch.

[0114] Step 3: Filter the received signal;

[0115] The receiving filter of the receiving link filters the wireless signal output by the antenna module, removes noise and interference signals from the signal, and transmits the filtered wireless signal to the low noise amplifier.

[0116] Step 4: Receive signal low-noise amplification;

[0117] The low-noise amplifier receives the wireless signal output from the filter, amplifies it with low noise to increase signal strength and reduce noise interference, and then transmits the amplified wireless signal to the downconverter.

[0118] Step 5: Signal down-conversion;

[0119] The local oscillator unit of the RF transceiver module outputs a stable local oscillator signal to the downconverter according to the control signal of the control unit. The downconverter receives the wireless signal output by the low noise amplifier and the local oscillator signal output by the local oscillator unit, performs mixing and downconversion processing, determines the noise figure of the downconverter, obtains the baseband signal, and transmits it to the interference suppression module.

[0120] Step 6: Receiving interference suppression;

[0121] The interference detection unit of the interference suppression module detects interference signals in the baseband signal, calculates the interference signal strength, and transmits the detection results to the control unit. The control unit adjusts the step size factor of the LMS filter, updates the filter weight vector, performs interference suppression processing on the baseband signal, and after ensuring that the interference suppression ratio meets the design requirements, transmits the processed baseband signal to the baseband processing module.

[0122] Step 7: Receive signal synchronization calibration;

[0123] The synchronization calibration module performs synchronization calibration processing on the baseband signal after interference suppression, including:

[0124] Frequency synchronization compensation: The frequency synchronization unit uses a carrier recovery algorithm to calculate the frequency offset of the baseband signal, compensate for the frequency offset, and obtain the frequency-synchronized baseband signal;

[0125] Phase synchronization compensation: The phase synchronization unit uses the Costas ring algorithm to calculate the phase shift of the baseband signal after frequency synchronization, and compensates for the phase shift to obtain the phase-synchronized baseband signal.

[0126] Time synchronization calibration: The time synchronization unit uses a sliding correlation algorithm to calculate the sliding correlation value, determine the start time of the signal, achieve time synchronization, and obtain the synchronized and calibrated baseband signal;

[0127] Step 8: Signal demodulation;

[0128] The demodulation unit of the baseband processing module receives the synchronously calibrated baseband signal, demodulates it using a coherent demodulation algorithm, determines the signal-to-noise ratio of the demodulated signal, and transmits the demodulated digital codeword signal to the channel decoding unit.

[0129] Step 9: Signal Decoding;

[0130] The channel decoding unit uses the BP algorithm to decode the demodulated digital codeword signal, iteratively updates it, restores it to the original digital information to be received, and transmits it to the main control unit of the mobile communication terminal.

[0131] Step 10: Receive power consumption control;

[0132] The power management module's power consumption detection unit monitors the operating power consumption of each module in real time, calculates the total power consumption of the device, and transmits the detection results to the control unit. The control unit controls the DC-DC converter to adjust the output voltage and current according to the workload of each module, thereby achieving dynamic power consumption control.

[0133] Step 11: Receive loop judgment;

[0134] Determine whether it is necessary to continue receiving signals. If yes, return to the signal reception matching step and continue receiving signals; otherwise, the control unit controls each module to enter a low-power idle state and wait for the next reception command.

[0135] Example 4:

[0136] like Figure 3 As shown, this embodiment of the invention provides a wireless transceiver device for a mobile communication terminal. When the device needs to switch operating channels, the control unit performs the following switching steps:

[0137] Step 1: Switch command reception;

[0138] The control unit receives the channel switching command output by the main control unit of the mobile communication terminal and obtains the frequency band parameters of the target channel.

[0139] Step 2: Antenna and impedance matching adjustment;

[0140] The control unit controls the antenna switching switch of the antenna module to switch to the radiating antenna that is compatible with the target channel frequency band, and at the same time adjusts the parameters of the impedance matching network to ensure impedance matching.

[0141] Step 3: Adjust the local oscillator frequency;

[0142] The control unit adjusts the local oscillator frequency of the RF transceiver module and controls the phase-locked loop to relock the output frequency of the voltage-controlled oscillator, ensuring that the local oscillator signal is compatible with the target channel.

[0143] Step 4: Adjust modulation and coding parameters;

[0144] The control unit adjusts the modulation mode of the modulation unit, the coding rate of the channel coding unit, and the output power of the power amplifier to adapt to the transmission characteristics of the target channel.

[0145] Step 5: Target channel synchronization calibration;

[0146] The synchronization calibration module performs synchronous detection on the target channel signal, completing frequency, phase, and time synchronization calibration.

[0147] Step 6: Target channel interference suppression adjustment;

[0148] The interference suppression module adjusts the filtering parameters to detect and suppress interference signals in the target channel, ensuring that the interference suppression ratio meets the design requirements.

[0149] Step 7: Confirm switch complete;

[0150] The control unit detects the working status of each module, and after confirming that all modules are adapted to the target channel, it completes the channel switching and the device enters the transmit and receive working state of the target channel.

[0151] The following points should be noted in this article:

[0152] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0153] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0154] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A wireless transceiver device for a mobile communication terminal, comprising an antenna module, a radio frequency transceiver module, a baseband processing module, an interference suppression module, a power management module, and a synchronization calibration module, characterized in that: The antenna module is electrically connected to the radio frequency transceiver module and is used to receive external wireless signals and transmit them to the radio frequency transceiver module. At the same time, it receives the signal to be transmitted output by the radio frequency transceiver module and radiates it to the outside. The antenna module adopts a multi-band adaptive antenna array, including multiple radiating antennas, antenna switching switches and impedance matching networks. The radio frequency transceiver module includes a transmit link, a receive link, and a local oscillator unit. The radio frequency transceiver module is electrically connected to the baseband processing module and is used to downconvert the radio frequency signal received by the antenna module to a baseband signal and transmit it to the baseband processing module, and upconvert the baseband signal output by the baseband processing module to a radio frequency signal and transmit it to the antenna module. The interference suppression module is electrically connected to the radio frequency transceiver module and the baseband processing module respectively, and is used to suppress co-frequency interference, intermodulation interference and external environmental interference in the radio frequency transceiver link. The synchronization calibration module includes a frequency synchronization unit, a phase synchronization unit, and a time synchronization unit. The synchronization calibration module is electrically connected to the radio frequency transceiver module and the baseband processing module, respectively, to realize frequency synchronization, phase synchronization, and time synchronization of the signal, and to ensure the consistency of the transmitted and received signals. The power management module adopts a dynamic power management strategy, including a DC-DC converter, a power switch and a power consumption detection unit. The power management module is electrically connected to the antenna module, the radio frequency transceiver module, the baseband processing module, the interference suppression module and the synchronization calibration module, respectively, to provide stable power supply to each module and dynamically adjust the power supply according to the working status of each module. The baseband processing module includes a modulation unit, a demodulation unit, a channel coding unit, a channel decoding unit, and a control unit, which are used to realize signal modulation and demodulation, channel coding and decoding, and coordinated control of each module.

2. The wireless transceiver device for a mobile communication terminal according to claim 1, characterized in that: The radiating antenna of the antenna module is a microstrip patch antenna, operating in the 700MHz-6GHz frequency band, compatible with 5G Sub-6GHz, millimeter wave, and existing 2G / 3G / 4G frequency bands. The antenna switching switch of the antenna module uses an SP4T RF switch, used to switch different radiating antennas according to the control signal from the baseband processing module control unit, achieving multi-channel adaptive switching. The impedance matching network of the antenna module uses an L-type matching circuit to adjust the antenna's input impedance, matching it to the 50Ω output impedance of the RF transceiver module. Its reflection coefficient is calculated using the formula: ; in The reflection coefficient, This is the antenna input impedance. The output impedance of the RF transceiver module, and it satisfies... .

3. The wireless transceiver device for a mobile communication terminal according to claim 1, characterized in that: The transmit link of the RF transceiver module includes a power amplifier, a transmit filter, and an up-converter; the receive link of the RF transceiver module includes a low-noise amplifier, a receive filter, and a down-converter; the local oscillator unit of the RF transceiver module includes a phase-locked loop and a voltage-controlled oscillator, used to provide a stable local oscillator signal for the up-converter and down-converter; the mixing gain formula of the up-converter is: ; in This refers to the mixing gain of the up-converter. This refers to the peak voltage of the RF signal output by the up-converter. The peak voltage of the input baseband signal to the up-converter; The formula for calculating the noise figure of a down-converter is: ; in, The noise figure of the downconverter. Input noise power to the downconverter The output noise power of the downconverter. This refers to the mixing gain of the downconverter. The formula for calculating the locking time of a phase-locked loop is: ; in This refers to the phase-locked loop (PLL) locking time. The damping coefficient is... It is the natural angular frequency. This is the frequency offset of the local oscillator signal. For the sensitivity of the voltage-controlled oscillator, For phase detector gain; The formula for calculating the output power of a power amplifier is: ; in, For the output power of the power amplifier, Input power to the power amplifier This represents the gain of the power amplifier.

4. The wireless transceiver device for a mobile communication terminal according to claim 3, characterized in that: The baseband processing module adopts an FPGA+DSP architecture. The FPGA is responsible for high-speed parallel processing such as signal modulation and demodulation, channel coding and decoding, while the DSP is responsible for the control of each module, algorithm calculation, and parameter adjustment. The modulation unit adopts an orthogonal amplitude modulation algorithm, supporting three modulation modes: 16QAM, 64QAM, and 256QAM. The signal modulation calculation formula is as follows: ; in, This is the modulated baseband signal. For in-phase branch signals, For orthogonal branch signals, The baseband carrier frequency; The channel coding unit employs a belief propagation algorithm to decode the demodulated coded signal and restore it to the original information bits. The iterative update formula for the BP algorithm is as follows: ; ; in For variable nodes To the verification node The message being delivered For verification nodes To variable node The message being delivered For variable nodes The set of adjacent verification nodes, For verification nodes The set of adjacent variable nodes, This is the normalization coefficient.

5. The wireless transceiver device for a mobile communication terminal according to claim 1, characterized in that: The interference suppression module employs an adaptive minimum mean square error filtering algorithm, combined with an interference detection unit. The interference detection unit detects the strength, frequency, and type of interference signals in the received signal and transmits the detection results to the baseband processing module. The weight update formula for the minimum mean square error filtering algorithm is as follows: ; in, For the first The filter weight vector at time t. For the first The filter weight vector at time t. Step size factor For the first The filtered error signal at time 10:

00. For the first The filter input signal vector at time t; The formula for calculating the filtering error signal is: ; in, For the first Expected signal at time, For the first The transpose of the filter weight vector at each time step; The formula for calculating the interference suppression ratio is: ; That For interference suppression ratio, The power of the interference signal input to the interference suppression module. This refers to the power of the interference signal output by the interference suppression module.

6. The wireless transceiver device for a mobile communication terminal according to claim 1, characterized in that: The frequency synchronization unit of the synchronization calibration module uses a carrier recovery algorithm, and the formula for calculating the frequency offset is: ; in, For symbol period, For the first The received signal at any time For the first The conjugate of the received signal at all times, For the expectation operator, For phase operators; The formula for calculating the received signal after frequency compensation is: ; in, The imaginary unit; The phase synchronization unit uses the Costas ring algorithm, and the formula for calculating the phase offset is: ; in, For the first The in-phase component of the received signal at all times. For the first Quadrature components of the received signal at any given time, and in-phase components after phase compensation and orthogonal components The calculation formula is: ; ; The time synchronization unit uses a sliding correlation algorithm, and the formula for calculating the sliding correlation value is: ; in, For sliding delay, The length of the synchronization sequence. For delay The subsequent local synchronization sequence, when When the maximum value is reached, the corresponding This is a synchronization delay, used to achieve time synchronization.

7. The wireless transceiver device for a mobile communication terminal according to claim 1, characterized in that: The power consumption detection unit of the power management module is used to detect the real-time power consumption of each module and transmit the detection results to the control unit of the baseband processing module. The power consumption control calculation principle formula of the power management module is as follows: ; in, For the conversion efficiency of DC-DC converters, For the output power of the DC-DC converter, The input power of the DC-DC converter and the conversion efficiency of the DC-DC converter. .

8. The wireless transceiver device for a mobile communication terminal according to claim 1, characterized in that: The control unit of the baseband processing module can receive synchronization signals from the synchronization calibration module and interference detection signals from the interference suppression module. It outputs control signals to perform antenna switching, frequency band selection, power adjustment, interference suppression algorithm parameter configuration, and multi-channel switching. During multi-channel switching, the control unit can adjust the parameters of the antenna module, RF transceiver module, modulation unit, channel coding unit, and interference suppression module to ensure stable operation of the device after switching and to maintain the phase-locked loop locking time. .

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