CN116781095B

CN116781095B - Communication device, method and electronic equipment

Info

Publication number: CN116781095B
Application number: CN202311087828.0A
Authority: CN
Inventors: 季晓宇
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2023-10-31
Anticipated expiration: 2043-08-28
Also published as: CN116781095A

Abstract

The application discloses a communication device, a method and electronic equipment, wherein the communication system comprises a filtering module, a Low Noise Amplifier (LNA) and a baseband module, wherein: the filtering module comprises a first switch, a second switch, K inductance modules and N capacitance modules; the K movable ends of the first switch are respectively connected with one ends of the K inductance modules; n movable ends of the second switch are respectively connected with one ends of N capacitance modules; the other ends of the K inductance modules and the N capacitance modules are connected with the input end of the LNA; the output end of the LNA is connected with the baseband module; under the condition of receiving signals, the first switch adjusts the matching inductance module by selecting K movable ends; the second switch adjusts the matched capacitance module by selecting N movable ends. In the embodiment of the application, the adaptive suppression of the signal can be blocked, so that the communication quality experience is improved.

Description

Communication device, method and electronic equipment

Technical Field

The present application relates to the field of electronic circuits, and in particular, to a communication device, a communication method, and an electronic apparatus.

Background

With the development and application of electronic devices, wireless communication capabilities of electronic devices are also continuously improved. In the fourth generation 4G mobile communication system, the wireless communication device generally adopts a single antenna or dual antenna radio frequency system architecture, and in the fifth generation 5G mobile communication system, a new air interface NR system proposes a radio frequency system architecture requirement of indicating 4 antennas. The signal receiving and transmitting of each frequency band in the radio frequency system can filter the signal through the filter, so that the signal quality is ensured. However, the filter has high cost, complex structure, large occupied area of hardware, large use limitation and poor communication quality.

Disclosure of Invention

The embodiment of the application discloses a communication device, a communication method and electronic equipment, which can block the self-adaptive suppression of signals, thereby improving the communication quality experience.

In a first aspect, the present application provides a communication device comprising a filtering module, wherein: the filtering module comprises a first switch, a second switch, K inductance modules and N capacitance modules; the K movable ends of the first switch are respectively connected with one ends of the K inductance modules; n movable ends of the second switch are respectively connected with one ends of the N capacitance modules; the first switch is used for selectively connecting the inductance modules in the K inductance modules, and the second switch is used for selectively connecting the capacitance modules in the N capacitance modules; the combination of different inductance modules and capacitance modules is selected, and the filtering frequency bands corresponding to the receiving channels are different.

In the embodiment of the application, the matched filtering combination selected by the first switch and the second switch forms a parallel resonant circuit, and the wave bands corresponding to the parameters of the parallel resonant circuit are suppressed. Because the parameters of the K inductance modules and the N capacitance modules are different, the corresponding consistent frequency bands of each matched filtering combination are also different. In each period duration, the baseband module firstly traverses the matched filtering combination through a round of circulation, selects the matched filtering combination with the best signal quality, then can ensure that the optimal matched filtering combination is unchanged in the residual time of the period duration, receives signals, and can select the optimal matched filtering combination to carry out signal filtering in most of the residual time in the period of circulation at the moment, thereby ensuring better filtering effect. For the condition of the change of the signal frequency band and the noise frequency band, the fixed frequency band filtering mode of the filter is limited, the signal quality is poor, the flexibility is poor, the filtering effect is better, and the flexibility and the universality are higher. In addition, the circuit structure of the filtering module is simpler, the area of the circuit structure is smaller, and the cost of the product is lower.

In one possible embodiment, the communication device further includes a radio frequency module and a baseband module, the radio frequency module including the filtering module; the radio frequency module is connected with the baseband module; the baseband module is used for demodulating the signal of the receiving channel. In this way, adaptive suppression of signals may be blocked, thereby improving the communication quality experience.

In one possible embodiment, the radio frequency module includes a radio frequency front end and a radio frequency transceiver; the radio frequency module comprises the filtering module, and comprises: the radio frequency module comprises the radio frequency front end, and the radio frequency front end comprises the filtering module; the radio frequency front end further comprises a low noise amplifier LNA; the other ends of the K inductance modules and the N capacitance modules in the filtering module are connected with the input end of the LNA; the output end of the LNA is connected with the radio frequency transceiver; the LNA is used for amplifying signals of the receiving channel; the radio frequency transceiver is connected with the baseband module. In this way, adaptive suppression of signals may be blocked, thereby improving the communication quality experience.

In one possible implementation, the baseband module is configured to determine a target matched filter combination; the target matched filtering combination is the combination with the best signal quality information in all the combinations of the inductance module and the capacitance module; the signal quality information represents the quality degree of the signal quality of the receiving channel; the baseband module is also used for controlling the first switch and the second switch to selectively connect the target matched filtering combination. In this way, the baseband module selects the best combination of signal quality information so that adaptive suppression of the signal can be blocked, thereby improving the communication quality experience.

In one possible implementation, the control terminal of the first switch is connected to an inductance selection terminal of the baseband module, and the baseband module is further configured to send a first control signal to the control terminal of the first switch through the inductance selection terminal; the control end of the second switch is connected with the capacitance selection end of the baseband module, and the baseband module is further used for sending a second control signal to the control end of the second switch through the capacitance selection end; the combination of the inductance module and the capacitance module corresponds to the first control signal and the second control signal. Therefore, the baseband module can select the first control signal and the second control signal, can adjust to the matched filtering combination, realizes the self-adaption of filtering matching, can self-adaption inhibit blocking signals and improves communication quality experience.

In one possible implementation, the baseband module is configured to determine a target matched filter combination, including: and under the condition that the receiving channel acquires the receiving signal, the baseband module is used for executing a matched filtering combination changing flow based on the period duration: the matched filtering combination changing flow comprises the following steps: the baseband module acquires first signal quality information; the baseband module controls the first switch and the second switch to change the matched filtering combination and acquire second signal quality information; readjusting first signal quality information based on the first signal quality information and the second signal quality information, and then performing the process of controlling the first switch and the second switch to alter the matched filter combination; the baseband module is further used for stopping the matched filter combination changing flow under the condition that all the matched filter combinations are changed and traversed, and determining the matched filter combination corresponding to the first signal quality information as a target matched filter combination; the matched filtering combination is a combination of an inductance module selected by the first switch and a capacitance module selected by the second switch. Therefore, the baseband module determines the combination with the best signal quality information as the target matched filtering combination by successively traversing the matched filtering combinations, so that the signal quality of the selected matched filtering combination is better, and the communication quality experience is improved.

In one possible implementation, in a case where the receiving channel stops receiving signals, the baseband module is further configured to end executing the matched filter combination changing procedure. Therefore, the adaptive filtering process can be controlled to be started under the condition of receiving the signal, and the signal is not received, so that the energy consumption is saved.

In one possible implementation, the readjusting the first signal quality information based on the first signal quality information and the second signal quality information includes: in case the first signal quality information is better than the second signal quality information, keeping the first signal quality information unchanged; assigning a value of the second signal quality to the first signal quality information if the first signal quality information is not better than the second signal quality information. Therefore, the best signal quality corresponding to the target matched filter is ensured, the better signal quality of the selected matched filter combination is ensured, and the communication quality experience is improved.

In one possible implementation, the baseband module stores a predetermined combination order, which is information that all matched filter combinations are arranged in a fixed order; the baseband module controlling the first switch and the second switch to alter a matched filter combination, comprising: the baseband module determines a first matched filter combination based on the predetermined combination sequence and the matched filter combination before modification; the baseband module controls the first switch to selectively connect the inductance module of the first matched filtering combination, and controls the second switch to selectively connect the capacitance module of the first matched filtering combination. Thus, the traversal combination is performed according to a fixed sequence, the traversal speed is ensured, the traversal time is reduced, the energy consumption is saved, the duration of the target matched filtering combination is ensured, and the communication effect is ensured.

In one possible implementation manner, the baseband module is configured to perform a matched filter combination modification procedure based on a period duration when the receiving channel acquires a received signal, where the method includes: at a first moment, the baseband module is used for executing the matched filtering combination changing flow first, and is also used for filtering based on the target matched filtering combination under the condition of traversing all the matched filtering combinations; and at a second moment, the baseband module is used for re-executing the matched filtering combination changing flow, and the first moment and the second moment are separated by one period duration. Thus, the matched filter combination can execute periodic traversal, so that timeliness of the target matched filter combination is guaranteed, the time-varying matched filter combination is suitable for signal variation in time variation, and the communication effect is guaranteed.

In one possible implementation, the period duration ranges from 0.5s to 20s. Thus, the period duration cannot be too long, and the timeliness of the target matched filtering combination is ensured; and the communication time of the target matched filtering combination is ensured because the target matched filtering combination is selected and needs a period of time to filter.

In one possible implementation, the baseband module is further configured to obtain the period duration based on a movement speed; the moving speed is the speed of the equipment where the communication device is located. Therefore, the period duration can be changed more flexibly, the use time of the target matched filtering combination is ensured to be more reasonable, and the signal quality is effectively improved.

In one possible implementation, the signal quality information includes a reference signal received quality, RSRQ, and/or a signal to interference plus noise ratio, SINR.

In one possible implementation, the communication system further includes a radio frequency transceiver, and the baseband module obtains first signal quality information, including: the radio frequency transceiver determines a first RSRQ and/or a first SINR of the received information after acquiring the received signal; the radio frequency transceiver sends the first RSRQ and/or the first SINR to a baseband module; the first signal quality information includes a first RSRQ and/or a first SINR. In this way, the baseband module can determine signal quality information to provide support for determining the target matched filter.

In a second aspect, the present application provides a communication method, the method being applied to a baseband module, the method comprising: the baseband module is connected with the filtering module, and the filtering module comprises a first switch, a second switch, K inductance modules and N capacitance modules; the K movable ends of the first switch are respectively connected with one ends of the K inductance modules; n movable ends of the second switch are respectively connected with one ends of the N capacitance modules; the first switch is selectively connected with one of the K inductance modules, and the second switch is selectively connected with one of the N capacitance modules; the combination of different inductance modules and capacitance modules is selected, and the filtering frequency bands of corresponding receiving channels are different; the baseband module determines a target matched filtering combination; the target matched filtering combination is the combination with the best signal quality information in all the combinations of the inductance module and the capacitance module; the signal quality information represents the quality degree of the signal quality of the receiving channel; the baseband module controls the first switch and the second switch to selectively connect the target matched filter combination.

In one possible implementation, the baseband module determines a target matched filter combination, comprising: and under the condition that the receiving channel acquires the receiving signal, the baseband module executes a matched filtering combination changing flow based on the period duration: the matched filtering combination changing flow comprises the following steps: the baseband module acquires first signal quality information; the baseband module controls the first switch and the second switch to change the matched filtering combination and acquire second signal quality information; readjusting first signal quality information based on the first signal quality information and the second signal quality information, and then performing the process of controlling the first switch and the second switch to alter the matched filter combination; the baseband module is further used for stopping the matched filter combination changing flow under the condition that all the matched filter combinations are changed and traversed, and determining the matched filter combination corresponding to the first signal quality information as a target matched filter combination; the matched filtering combination is a combination of an inductance module selected by the first switch and a capacitance module selected by the second switch. Therefore, the baseband module determines the combination with the best signal quality information as the target matched filtering combination by successively traversing the matched filtering combinations, so that the signal quality of the selected matched filtering combination is better, and the communication quality experience is improved.

In one possible embodiment, the method further comprises: and under the condition that the receiving channel stops receiving signals, the baseband module finishes executing the matched filtering combination changing flow. Therefore, the adaptive filtering process can be controlled to be started under the condition of receiving the signal, and the signal is not received, so that the energy consumption is saved.

In one possible implementation manner, the baseband module performs a matched filter combination modification procedure based on a period duration when the receiving channel acquires a received signal, where the method includes: at a first moment, the baseband module firstly executes the matched filtering combination changing flow, and filtering is carried out based on the target matched filtering combination under the condition of traversing all the matched filtering combinations; and at a second moment, the baseband module re-executes the matched filtering combination changing flow, and the first moment and the second moment are separated by one period duration. Thus, the matched filter combination can execute periodic traversal, so that timeliness of the target matched filter combination is guaranteed, the time-varying matched filter combination is suitable for signal variation in time variation, and the communication effect is guaranteed.

In one possible embodiment, the method further comprises: the baseband module obtains the period duration based on the moving speed; the moving speed is the speed of the equipment where the communication device is located. Therefore, the period duration can be changed more flexibly, the use time of the target matched filtering combination is ensured to be more reasonable, and the signal quality is effectively improved.

In a third aspect, the present application provides an electronic device comprising a communication apparatus as described in any one of the possible implementation manners of the first aspect.

In a fourth aspect, an embodiment of the present application provides a PCB board, including computer instructions which, when run on an electronic device, cause the electronic device to perform the communication apparatus as described in any one of the possible implementation manners of the first aspect.

In a fifth aspect, an embodiment of the present application provides a radio frequency chip, where the chip includes the communication device in any one of the possible implementation manners of the first aspect.

In a sixth aspect, an embodiment of the present application provides a communication chip, where the chip includes a communication device as described in any one of the possible implementation manners of the first aspect.

In a seventh aspect, an embodiment of the present application provides a chip system, including a communication device as described in any one of the possible implementation manners of the first aspect.

Drawings

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 2A and fig. 2B are schematic structural diagrams of another group of communication systems according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a filtering module 233 according to an embodiment of the application;

FIG. 4 is a schematic flow chart of a method for selecting capacitance and inductance according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a matched filter combination modification for a plurality of period durations according to an embodiment of the present application;

fig. 6A to fig. 6D are schematic structural diagrams of a group of inductance modules according to an embodiment of the present application;

fig. 7A to fig. 7D are schematic structural diagrams of a group of capacitor modules according to an embodiment of the present application;

Fig. 8 is a schematic hardware structure of an electronic device according to an embodiment of the present application.

Detailed Description

In embodiments of the present application, the words "first," "second," and the like are used to distinguish between identical or similar items that have substantially the same function and effect. For example, the first chip and the second chip are merely for distinguishing different chips, and the order of the different chips is not limited. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.

It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to denote examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

The embodiment of the application provides a communication device, a communication method and electronic equipment, which can block the self-adaptive suppression of signals, thereby improving the communication quality experience.

Fig. 1 is a schematic diagram of a communication system in which an embodiment of the present application is exemplarily shown. The communication system may include a baseband module 110, a radio frequency transceiver (RF transceiver) 120, a radio frequency front end (radio frequency front-end, RFFE) 130, and an antenna module 140.

The baseband module 110 may perform digital baseband signal processing to encode and decode the digital baseband signal. The baseband module 110 may include a modulation module 112 and a demodulation module 111. The demodulation module 111 may receive a signal of the radio frequency transceiver 120 and demodulate the signal through a carrier. The modulation module 112 may modulate the signal with a carrier wave via a multiplier.

The radio frequency transceiver 120 may be used to perform conversion between digital baseband and analog radio frequency signals. The radio frequency transceiver 120 may include a radio frequency demodulation module 121 and a radio frequency modulation module 122. The rf modulation module 122 may process the digital baseband signal from the baseband module 110 into an rf analog signal and send the rf analog signal to the rf front end 130. The rf demodulation module 121 receives the rf analog signal transmitted by the rf front end 130, converts the rf analog signal into a digital baseband signal, and sends the digital baseband signal to the baseband module 110.

The antenna module 140 may include a plurality of antennas. The external antenna of the antenna module 140 may be configured to receive or transmit radio frequency analog signals. The antenna module 140 may include a plurality of antennas, for example, 3P3T.4P4T, etc., without limitation.

The rf front end 130 may be configured to send rf analog signals to the antenna module 140 or receive rf analog signals from the antenna module 140, so as to amplify, filter, and so on the rf analog signals. The rf front end 130 may include a Power Amplifier (PA) 132, a low noise amplifier (low noise amplifier, LNA) 131, a filter 133, and an antenna switch 134, among others. The radio frequency front end is a core component of the wireless communication module and is a basic component for mutually converting a wireless electromagnetic wave signal and a binary digital signal. The radio frequency front end can be applied to terminal equipment, communication base stations and the like.

A Low Noise Amplifier (LNA) 131 may enable signal amplification of the receive path. The signal receiving device is used at the receiving end and is an amplifier with small noise coefficient, and can amplify weak radio frequency signals received by an antenna, inhibit noise and enable signals transmitted to the rear end receiver to be processed more easily. The LNA can effectively improve the receiving sensitivity of the receiver, thereby improving the transmission distance of the transceiver. Therefore, whether the design of the low noise amplifier is good or not can affect the communication quality of the whole communication system.

The Power Amplifier (PA) 132 is a core device of the rf front end, and may amplify the rf signal of each transmit channel. The important function of the PA132 is to amplify the power, obtain sufficient signal strength to radiate through the antenna, and at the same time the process signal is not distorted. The PA132 is mainly used for a transmitting link, and by amplifying a weak radio frequency signal of a transmitting channel, the signal successfully obtains high enough power, thereby realizing higher communication quality, stronger battery endurance, longer communication distance and the like.

The filter 133 may retain signals in a particular frequency band and filter out signals in other frequency bands. To address the problem of interfering signals in a radio frequency communication system, filters may be relied upon to reduce blocking signals and preserve target signals. Briefly, a filter is a component that allows transmission of frequencies within a passband and rejection of frequencies within a stopband.

The switch can realize the switching of different signal paths, receiving and transmitting, and the switching of different frequency bands.

Of course, the rf front end 130 may also include other devices or modules, such as a diplexer (not shown): because of the band reject filters in two different frequency bands, the receive and transmit announcements in frequency band reuse (FDD) will function simultaneously, and the diplexer can be used to interfere with the receive signal by the transmit signal.

From the communication system configuration point of view, the radio frequency front end can be divided into a transmit channel and a receive channel: the transmitting channel can amplify and filter the weak electromagnetic wave signal generated by the radio frequency transmitter in the process of transmitting the signal, and the transmitting channel comprises functional components such as a Power Amplifier (PA). In the emission channel: through the PA amplification, the signals reach the antenna after the filtering process and the antenna switch control, and are radiated into space through the antenna. The receiving channel can amplify and filter the received electromagnetic wave signal to a range suitable for the operation of the radio frequency receiver in the process of receiving the signal, wherein the receiving channel comprises a filter, a Low Noise Amplifier (LNA), a radio frequency switch and other devices. In the receiving channel: the space radiation signal is coupled into the receiving path through the antenna, and the received weak signal is subjected to fatigue and filtering treatment, reaches the LNA after being controlled by the radio frequency switch, and is amplified and then oscillates with the local.

In the above-mentioned receiving channel, in order to suppress the influence of the external interference signal on the sensitivity of the receiving signal of the terminal and to suppress the out-of-band interference (blocking signal) of the radio frequency signal of the transmitting channel, it is generally necessary to configure a filter or a duplexer on the receiving channel and the transmitting channel of the radio frequency front end. Blocking refers to the effect of an operating out-of-band interfering signal on the overall uplink gain and in-band signal demodulation. In a radio frequency communication system, a blocking signal is a received interfering input signal that reduces the gain and signal-to-interference ratio of a target signal. The blocking signal may directly mask the target signal or may produce spurious products that mask the target signal. These unwanted signals may be the result of unintentional or intentional interference.

For the receiving requirement of the multi-band multi-input multi-output MIMO antenna, the radio frequency front end needs to support the products of the multi-band MIMO receiving channel. However, since the filtering range of the filter is fixed, in one case, adjacent multiple frequency bands and multiple modes can be supported in one receiving channel of the radio frequency chip. When the terminal needs to support a plurality of frequency bands included in the one receiving channel, a switch device needs to be added to the radio frequency front end to adapt to filters or diplexers corresponding to the plurality of frequency bands, which leads to the increase of the volume and cost of the radio frequency front end, and meanwhile, the introduction of the switch also reduces the radio frequency performance of the receiving channel. In one case, multiple frequency bands and multiple modes can be respectively supported by multiple receiving channels of the radio frequency chip. This leads to an increase in the number of filters, LNAs, etc., which leads to an increase in the bulk and cost of the rf front-end, and a greater limitation on the rejection of blocking signals.

In the above process, since the adaptive filtering frequency band of each filter is fixed, if the rf front end supporting multiple frequency bands, the number of filters needs to be increased to each receiving channel. The blocking signal in the receiving channel is attenuated by the filter, so that the multi-band shared receiving channel is realized, and the increased line complexity of the filter can bring about the volume and cost of the product.

The embodiment of the application provides a communication device, a communication method and electronic equipment. The radio frequency front end may include an LNA, a PA, a filtering module, and an antenna switch. The filtering module may include a first switch, a second switch, K inductance modules, and N capacitance modules. The K movable ends of the first switch are respectively connected with one ends of the K inductance modules; n movable ends of the second switch are respectively connected with one ends of N capacitance modules; the other ends of the K inductance modules and the N capacitance modules are connected with the input end of the LNA; the output end of the LNA is connected with the baseband module; the LNA amplifies signals of the receiving channel; the baseband module demodulates the signals of the receiving channel;

under the condition of receiving signals, the baseband module controls the first switch and the second switch to firstly determine a target matched filtering combination according to the period duration, and then carries out filtering processing according to the target matched filtering combination. The target matched filtering combination is the combination with the best signal quality information in all combinations of the K inductance modules and the N capacitance modules. Specifically, the baseband module control may change the matched filtering combination according to a preset combination sequence; the first switch can adjust the matching inductance module by selecting K active terminals, and the second switch can adjust the matching capacitance module by selecting N active terminals. The matched filtering combination is a combination type formed by K inductance modules and N capacitance modules. The preset combination sequence is information of all matched filtering combination types arranged according to a fixed sequence. And traversing all matched filter combinations once every time the target matched filter combination is determined to be completed.

In the above process, the matched filtering combination selected by the first switch and the second switch forms a parallel resonant circuit, and suppresses the wave band corresponding to the parameter. Because the parameters of the K inductance modules and the N capacitance modules are different, the corresponding consistent frequency bands of each matched filtering combination are also different. In each period duration, the baseband module firstly traverses the matched filtering combination through a round of circulation, selects the matched filtering combination with the best signal quality, then can ensure that the optimal matched filtering combination is unchanged in the residual time of the period duration, receives signals, and can select the optimal matched filtering combination to carry out signal filtering in most of the residual time in the period of circulation at the moment, thereby ensuring better filtering effect. For the condition of the change of the signal frequency band and the noise frequency band, the fixed frequency band filtering mode of the filter is limited, the signal quality is poor, the flexibility is poor, the filtering effect is better, and the flexibility and the universality are higher. In addition, the circuit structure of the filtering module is simpler, the area of the circuit structure is smaller, and the cost of the product is lower.

Fig. 2A and 2B are schematic diagrams illustrating the structure of another group of communication systems according to an embodiment of the present application. As shown in fig. 2A, the communication system may include a baseband module 210, a radio frequency transceiver 220, a radio frequency front end 230, and an antenna module 240. The radio frequency front end 230 may include an LNA231, a PA232, a filtering module 233, and an antenna switch 234. The rf front end 230 may connect the antenna module 240 and the rf transceiver 220. The filtering module 233, which may be the rf front end 230, may also be connected to the baseband module 210. The baseband module 210 is coupled to a radio frequency transceiver 220. Wherein the rf front end 230 and the rf transceiver may constitute an rf module.

The baseband module 210 may be a baseband Chip (Baseband Processor, BP), which may include a System on Chip (SoC). The filtering module 233 may be connected to the baseband module 210, and in particular, the filtering module 233 may be connected to the SoC213. In general, a SoC is referred to as a system-on-chip, also known as a system-on-chip, meaning that it is a product that is an integrated circuit with dedicated targets, containing the entire system and having embedded software. It is also a technique to achieve the whole process from determining the system functions, to software/hardware partitioning, and to complete the design.

The filtering module 233 can filter out signals in out-of-band frequency bands, so as to solve the problem of interference signals in the radio frequency communication system, and can reduce blocking signals and retain target signals by means of a filter. The following describes details about the filtering module 233. In the embodiment of the application, the baseband module can regulate and control the filtering frequency band of the filtering module 233, and select so as to select the information with the best received signal for processing.

The description of the related modules in the communication system in fig. 2A may refer to the related description in fig. 1, which is not repeated.

Alternatively, as shown in fig. 2B, the radio frequency transceiver 220 may include an LNA221, while the radio frequency front end 230 does not include an LNA. Other modules may refer to the relevant description of fig. 2A, and are not described in detail.

In the above process, the SoC of the baseband module 210 may control the first switch and the second switch to select the matching inductance module and the matching capacitance module. In the receiving channel, the received signal passes through the first switch and the matching inductance module, and the second switch and the matching capacitance module. The matching inductance module and the matching capacitance module can filter the received signals.

Fig. 3 is a schematic diagram of a structure of a filtering module 233 according to an embodiment of the application. As shown in fig. 3, referring to the communication system shown in fig. 2A and 2B, the filtering module 233 may connect the antenna switch 234, the LNA231, and the baseband module 210. The radio frequency transceiver 220 may connect the LNA231 and the baseband module 210.

The filtering module 233 may include a first switch, a second switch, K inductance modules, and N capacitance modules. The first switch and the second switch may be connected to the antenna switch 234, and K active ports of the first switch may be connected to one ends of K inductance modules, respectively. The N active ends of the second switch may be connected to one end of the N capacitor modules, and the other ends of the K inductor modules and the other ends of the N capacitor modules may be connected to the LNA231, respectively. The first switch and the second switch may also be connected to the baseband module 210, respectively.

The first switch and the second switch are both single pole multi-throw switches. The first switch may be used to select a matching inductance module from the K inductance modules. The first switch may include K movable terminals (a 1, a2, a3, … …, ai, … …, aK) and one fixed terminal a. The K inductance modules may be: first inductance module, second inductance module, … …, ith inductance module, … …, kth inductance module. K is a positive integer, and i is any integer from 1 to K. Wherein each of the inductor modules may include a first end and a second end. The K movable ends of the first switch are sequentially connected with the first ends of the K inductance modules respectively. The first switch may further include a control terminal, and the control terminal of the first switch may be connected to the inductance selection terminal of the baseband module 210. The baseband module 210 may control the first switch to change or determine the matching inductance module through the inductance selection terminal, thereby adjusting the connection between the fixed end a and the movable end. For example, in the case of a connection when the i-th inductor module is selected as the matching inductor module, the first switch may connect the a-terminal with the ai-terminal. The matching inductance module is an inductance module which is selectively accessed by a first switch in the K inductance modules.

The second switch may be used to select a matching capacitive module from the N capacitive modules. The second switch may include N movable terminals (B1, B2, B3, … …, bN, … …, bN) and one fixed terminal B. The N capacitance modules may be respectively: the first capacitor module, the second capacitor module, … …, the nth capacitor module, … … and the nth capacitor module. N is a positive integer, and N is any integer from 1 to N. Wherein each capacitive module may include a first end and a second end. The N active ends of the second switch may be sequentially connected to the first ends of the N capacitor modules, respectively. The second switch may also include a control terminal. The baseband module 210 may control the second switch to change or determine the matching capacitor module through the capacitor selection terminal, thereby adjusting the connection between the fixed terminal B and the movable terminal. For example, in the case where the nth capacitance module is selected as the matching capacitance module, the second switch may connect the B port with the bn port. The matching capacitor module is a capacitor module which is selectively accessed by a second switch in the N capacitor modules.

The baseband module 210 may select a matching inductance module and a matching capacitance module based on the signal quality of the received signal.

The baseband module may determine a target matched filter combination; the target matched filtering combination is the combination with the best signal quality information in the combination of all the inductance modules and the capacitance modules; the signal quality information indicates the quality of the signal quality of the receiving channel; and then, the baseband module controls the first switch and the second switch to selectively connect the target matched filtering combination, and filtering processing is performed through the target matched filtering combination. After the baseband module traverses all the matched filter combinations, a target matched filter combination is obtained. The target matched filtering combination is the combination with the best signal quality information of all matched filtering combinations.

In a possible implementation, in case the receiving channel receives the signal, a periodic loop filtering procedure may be performed. The periodic cyclic filtering flow comprises the following steps: the method comprises the steps of starting at the starting moment of each period, determining a target matched filter combination, selecting a connection target matched filter combination, ensuring that the matched filter combination is unchanged, starting at the starting moment of the next period, determining the target filter combination again, and cycling the process. It should be further noted that, the baseband module performs the above-mentioned cyclic filtering process only when receiving a signal. For example, the baseband module may determine that a radio frequency signal is currently received in the case of determining that an RRC connection is present. At this point, the baseband module may begin to perform a periodic loop filtering process.

The RRC states include two types: a released state and a connected state. In the RRC connected state, this means currently in the process of receiving radio frequency signals. In the RRC released state, this means that no radio frequency signal is currently received. And under the condition of RRC release, the baseband module ends the capacitive inductance selection flow. And under the condition that the RRC is released by the baseband module, stopping the periodic loop filtering flow.

In a cyclic filtering process, there may be various methods for determining the target matched filtering combination, and in a possible manner, the method of fig. 4 is described as follows:

fig. 4 is a flowchart of a method for determining a target matched filter combination according to an embodiment of the present application. As shown in fig. 4, the method for determining the target matched filter combination may include, but is not limited to, the following steps:

the baseband module may determine that a radio frequency signal is currently received in case of determining that it is in an RRC connection. At this time, the baseband module may acquire first signal quality information through the radio frequency transceiver (S401 is performed). S401 to S406 are matched filtering combination circulation flows in the embodiment of the application.

S401: the baseband module obtains first signal quality information.

The first signal quality information includes a first reference signal received quality (reference signal received quality, RSRQ) and/or a first signal to interference plus noise ratio (signal to interference plus noise ratio, SINR). The signal quality information may represent a degree of quality of the signal quality of the reception channel signal.

The RSRQ is a measure of the quality of reception of the downlink specific cell reference signal, and is expressed in dBm. SINR is the ratio of the strength of the received useful signal to the strength of the received interfering signal in dB.

Specifically, in the process of receiving signals, the radio frequency transceiver filters in a receiving channel according to the current capacitance matching module and the current inductance matching module. The radio frequency transceiver calculates the RSRQ and SINR of the received signal. The baseband module may request first signal quality information of a received signal from the radio frequency transceiver in case it is determined that a radio resource control (radio resource control, RRC) connection is currently being made. The radio frequency transceiver may then transmit the first signal quality information to the baseband module.

In the embodiment of the present application, the signal quality information is parameter information for measuring the quality of the received signal, and may include RSRQ and/or SINR.

S402: the baseband module changes the capacitance matching module and the inductance matching module.

The filtering module comprises K inductance modules and N capacitance modules. The inductance value of each inductance module and the capacitance value of each capacitance module are different, and a matched filtering combination can comprise a capacitance module and an inductance module, and the inductance and the capacitance can be adjusted according to a preset combination sequence in a baseband module. The predetermined combination, i.e. the combination category of the matched filter combination, may comprise k×n (or k×n+1, further comprising one of the straight-through). And each matched filtering combination is respectively connected with a capacitance matching module and an inductance matching module, and corresponds to a resonance point.

For example, K is 4 and N is 3. The baseband module may be preset with 4*3 =12 matched filtering combinations, where the 12 matched filtering combinations respectively correspond to the combination modes of the 12 switch active ends. For example, the switch combination list (predetermined combination order of matched filter combinations) is: a1-b1 (resonance point 1); a1-b2 (resonance point 2); a1-b3 (resonance point 3); a2-b1 (resonance point 4); a2-b2 (resonance point 5); a2-b3 (resonance point 6); a3-b1 (resonance point 7); a3-b2 (resonance point 8); a3-b3 (resonance point 9); a4-b1 (resonance point 10); a4-b2 (resonance point 11); a4-b3 (resonance point 12). Of course, it may also include: and when the capacitor module is in direct connection and is not blocked, the capacitor module and the inductor module are not connected by using the direct connection end to work. A total of 12 switch combinations correspond to 12 matched filter combinations. Assume that the baseband module can determine the current matched filter combination as a2-b1. In the case where it is determined that the capacitance matching module and the inductance matching module need to be changed, it may be determined that the matched filter combination is changed to a2-b2 (filter combination after a2-b 1) in a predetermined combination order. The baseband module can control the end A of the first switch to be connected with the end a2, and the end B of the second switch to be connected with the end B2, so that the change is finished. The matched filter combination comprises a capacitance matching module and an inductance matching module.

The predetermined combination sequence may be preset, may be in a form of a table or a text, and is not limited. The predetermined combination order is information that sorts the matched filter combinations in a fixed order. S403: the baseband module obtains second signal quality information.

And after the electronic equipment changes the capacitance matching module and the inductance matching module, acquiring second signal quality information. Wherein the second signal quality information may include a second RSRQ and/or a second SINR. The manner of acquisition may refer to the related description of S401, and is not described in detail. The second signal quality information is the latest acquired signal quality information after the change in S402. That is, the matched filter combination in the received signal path has changed in S403, and the acquired second signal quality information generally corresponds to a different matched filter combination than the first signal quality information.

S404: the baseband module determines whether to adjust the first signal quality information based on the first signal quality information and the second signal quality information.

After the baseband module determines the first RSRQ and the second RSRQ, and/or the first SINR and the second SINR, the baseband module may determine whether to adjust the first signal quality information based on the first signal quality information and the second signal quality information.

The first signal quality information includes a first RSRQ and/or a first SINR. The second signal quality information includes a second RSRQ and/or a second SINR. In case that the first signal quality information is better than the second signal quality information, S406 is performed; otherwise, S405 is executed. The following is specific to the different cases:

if possible: the signal quality information includes RSRQ and SINR. The baseband module may determine a size between the first RSRQ and the second RSRQ; and a size between the first SINR and the second SINR.

When the first RSRQ is greater than or equal to the second RSRQ; and if the first SINR is greater than or equal to the second SINR, the first RSRQ is executed S406. At the first RSRQ is less than the second RSRQ; and S405 is performed in case that the first SINR is smaller than the second SINR. I.e. the value of the second signal quality information may be assigned to the first signal quality information. At the first RSRQ is less than the second RSRQ; and S406 is performed in case that the first SINR is greater than or equal to the second SINR. When the first RSRQ is greater than or equal to the second RSRQ; and S405 is performed in case that the first SINR is smaller than the second SINR. That is, it can be understood that when the SINR and the RSRQ result collide, the signal index of the SINR is more important and effective, so that the SINR information is used for processing first, and the reliability of the comparison result can be ensured.

Another possible case is: the signal quality information includes RSRQ. The baseband module may determine a size between the first RSRQ and the second RSRQ. In case the first RSRQ is greater than or equal to the second RSRQ, S406 is performed. In case the first RSRQ is smaller than the second RSRQ, S405 is performed.

Yet another possible case is: the signal quality information includes SINR. The baseband module may determine a size between the first SINR and the second SINR. In case that the first SINR is greater than or equal to the second SINR, S406 is performed. In case the first SINR is smaller than the second SINR, S405 is performed.

S405: the baseband module assigns a value of the second signal quality information to the first signal quality information.

The baseband module assigns a value of the second RSRQ to the first RSRQ if the second signal quality information is determined to be better; and/or assigning a value of the second SINR to the first SINR.

For example, the second RSRQ is-22 dBm; in the case where the first RSRQ is-41 dBm, the first RSRQ may be determined to be-22 dBm. The second SINR is 24dB; in the case where the first SINR is 50dB, the first SINR may be determined as 50dB.

After S405 is performed, S407 may be continued to be performed.

S406: the baseband module maintains the first signal quality information unchanged.

In case it is determined that the first signal quality information is better, the baseband module performs S406, i.e. the baseband module keeps the first RSRQ and/or the first SINR unchanged.

The execution process of S405 and S406 can keep the best signal quality combination of the first signal quality information so far in the round of matched filtering combination circulation flow, so as to ensure that the determined target matched filtering combination is the best signal quality information.

After S406 is performed, S407 may be continued to be performed.

S407: the baseband module judges whether to end the matched filtering combination circulation flow.

The baseband module determines whether the current matched filter combination is the last matched filter combination in a predetermined combination order. If the matched filter combination is the last, the matched filter combination loop is judged to be ended, and S408 is executed. If not, the judgment is not finished, and S402 is executed.

S408: the baseband module determines a matched filter combination corresponding to the first signal quality information as a target matched filter combination.

The baseband module may determine that the matched filter combination corresponding to the first signal quality information may be a target matched filter combination.

In the above process, each time the modification (S402), the matched filter combination adjustment is performed once, and the first signal quality information is redetermined once. After traversing all the matched filter combinations according to a predetermined combination sequence (after a round of cyclic matched filter combinations), the baseband module can determine that the first signal quality information is the best signal quality information, determine the matched filter combination corresponding to the first signal quality information, and determine the matched filter combination as a target matched filter combination. The baseband module can control the first switch and the second switch to adjust the filtering module to the target matched filtering combination, and can filter through the target matched filtering combination in the remaining time of the current period cyclic filtering flow. After that, after the loop completes one cycle of the loop filtering process, the baseband module may continue with the next cycle of the loop until the RRC connection is broken.

In addition to the method of determining the target matched filter combination of fig. 4, another possible aspect of embodiments of the present application. The baseband module may also alter the matched filter combinations in a predetermined sequence of combinations, after each alteration, the baseband module may store signal quality information for each matched filter combination. After traversing all matched filter combinations in a predetermined sequence of combinations, all stored signal quality information may be compared to determine the combination with the best signal quality information as the target matched filter combination. The application is not limited to the process of determining the target matched filter combination.

The baseband module can complete one cycle in one cycle duration in the cycle filtering flow. The baseband module may determine a start time of each cycle, and before each change thereafter, may determine whether a time difference between the start time of the cycle and a current time reaches a preset period duration. When the time difference between the cycle start time and the current time is greater than or equal to the period duration, the electronic device may start to determine to start to change, and if the time difference is less than the preset period duration, the electronic device may wait for the time difference to reach the preset period duration, and start to change.

Illustratively, the period duration is 10S, and the baseband module performs S402 to determine whether the current matched filter combination is the last matched filter combination in the predetermined combination order. And if the combination is the last matched filtering combination, executing S402, otherwise, exiting the loop logic of S401-S406. The baseband module may then alter the matched filter combination to a matched filter combination corresponding to the first signal quality information. And under the condition that the current period duration is over, carrying out the processing procedure of the next cycle period, namely re-executing the processing procedures of S401-S406.

Fig. 5 is a schematic diagram of a matched filter combination modification of a plurality of period durations, as shown in an example of an embodiment of the application. As shown in fig. 5, T1 to T2 are separated by a period of time, and T2 to T3 are separated by a period of time.

At the time T1, the baseband module determines that a receiving channel acquires a signal, (RRC connection), starts to execute a matched filter combination changing process (S401-S406), circularly completes first traversal in a period from T1 to T1, determines a first target matched filter combination, and adjusts the matched filter combination to the first target matched filter combination; the received signal is filtered in accordance with a first target matched filter combination over a period of T1 to T2.

Restarting executing the matched filter combination changing flow (S401-S406) at the moment T2, circularly completing the second traversal in the period from T2 to T2, determining a second target matched filter combination, and adjusting the matched filter combination to the second target matched filter combination; the received signal is filtered in accordance with the second target matched filter combination during the period T2 to T3.

And restarting the execution of the matched filter combination changing flow (S401-S406) at the moment T3, circularly completing the third traversal in the period from T3 to T3, determining a third target matched filter combination, and executing the rest steps according to the same logic at the moments T1 and T2.

And restarting executing the matched filter combination changing flow (S401-S406) at the TY moment, circularly completing the Y-th traversal in the period from TY to TY, and determining the Y-th target matched filter combination. And in the period duration of tY, the TE time RRC is released, and the execution process of the matched filtering combination changing process (S401-S406) is exited under the condition that the receiving channel cannot receive the signal. Wherein Y is an integer greater than 2.

As can be seen from fig. 5, after a short traversal time, it is determined that the filtering matching can be flexibly performed within the period duration of the target matching filtering combination, so that the filtering result is more consistent with the current frequency band, and the filtering effect of the electronic device is better.

Optionally, the baseband module may determine the period duration before executing S401 to S406. The period duration may range from 0.5s to 20s.

The baseband module may determine the period duration based on the movement speed or acceleration data. At this time, the baseband module may acquire the moving speed of the device through the acceleration sensor. The faster the movement speed, the shorter the corresponding period duration. The baseband module is used for a first mapping relation between a speed range and a period duration. For example, in the first mapping relationship: the speed is above 200km/h, and the corresponding period time is 0.5s; the speed is more than 100-200 km/h, and the corresponding period duration is 1s; the speed is above 40-100 km/h, and the corresponding period time is 4s; the speed is more than 10-40 km/h, and the corresponding period duration is 10s; the speed is below 10km/h, and the corresponding period duration is 15s. The first mapping relation described above is only an exemplary description, and is not limited thereto.

In the above embodiment, the electronic device can determine the period duration according to the moving speed of the device, so that the flexibility of the accuracy of the cycle adjustment period of the filtering module can be ensured, the electronic device can be ensured to quickly and effectively select the best quality matched filtering module, the cycle times are reduced as much as possible, the processing times are saved, and the power consumption of the electronic device is saved.

Among the K inductance modules in fig. 3, the circuit structure of the inductance module may be represented as follows:

fig. 6A to fig. 6D are schematic structural diagrams of a group of inductance modules according to an embodiment of the application.

As shown in fig. 6A, the inductance module may include an inductance L1, wherein a first end of the inductance L1 may be used as a first end of the inductance module, and a second end of the inductance L1 may be used as a second end of the inductance module.

As shown in fig. 6B, the inductance module may include two inductances L2, an inductance L3, and a capacitance C1. The capacitor C1 and the inductor L2 are connected in series, and two sides of the capacitor C1 and the inductor L2 are connected in parallel with the inductor L3. The first end of the capacitor C1 is connected with the first end of the inductor L3 and is used as the first end of the inductor module; the second end of the capacitor C1 is connected with the first end of the inductor L2; the second end of the inductor L2 is connected to the second end of the inductor L3 and is used as the second end of the inductor module. Of course, the first end of the capacitor C1 and the first end of the inductor L3 may also be used as the second end of the inductor module, and the second end of the corresponding inductor L2 and the second end of the inductor L3 may also be used as the second end of the inductor module.

As shown in fig. 6C, the inductance module may include two inductances connected in parallel: the inductor L4 and the inductor L5 are connected in parallel. The first end of the inductor L4 is connected with the first end of the inductor L5 and can be used as the first end of the inductor module; the second end of the inductor L4 is connected to the second end of the inductor L5 and can be used as the second end of the inductor module.

As shown in fig. 6D, the inductance module may include two series inductances: the inductor L6 and the inductor L7 are connected in series. The second end of the inductor L6 is connected with the first end of the inductor L7; the first end of the inductor L6 may be used as the first end of the inductor module; the second end of the inductor L7 may be the second end of the inductor module.

Wherein the total inductance value of the inductance module ranges from 0.6 nH to 27nH. The inductance value range can ensure effective filtering of interference signals (blocking signals) in the communication frequency band and ensure the signal effect of the filtering module.

Fig. 7A to fig. 7D are schematic structural diagrams of a group of capacitor modules according to an embodiment of the application.

As shown in fig. 7A, the capacitor module may include a capacitor C1, where a first end of the capacitor C1 may be used as a first end of the capacitor module, and a second end of the capacitor C1 may be used as a second end of the capacitor module.

As shown in fig. 7B, the capacitive module may include two parallel capacitances: the capacitor C2 and the capacitor C3 are connected in parallel. The first end of the capacitor C2 is connected to the first end of the capacitor C3, and may be used as the first end of the capacitor module. The second end of the capacitor C2 is connected to the second end of the capacitor C3, and may be used as the second end of the capacitor module.

As shown in fig. 7C, the capacitive module may include two series capacitances: capacitor C4 and capacitor C5 are connected in series. The second end of the capacitor C4 is connected with the first end of the capacitor C5; the first end of the capacitor C4 may be the first end of the capacitor module; the second terminal of the capacitor C5 may be the second terminal of the capacitor module.

As shown in fig. 7D, the capacitance module may include a capacitance C6, a capacitance C7, and an inductance L1. Wherein, the capacitor C6 and the inductor L1 are connected in series, and both sides of the capacitor C6 and the inductor L1 are connected in parallel with the capacitor C7. The first end of the capacitor C6 is connected with the first end of the capacitor C7 and can be used as the first end of the capacitor module; the second end of the capacitor C6 is connected with the first end of the inductor L1; the second end of the inductor L1 is connected to the second end of the capacitor C7 and can be used as the second end of the capacitor module. Of course, the first end of the capacitor C6 and the first end of the capacitor C7 may also be used as the second end of the capacitor module, and the second end of the corresponding inductor L1 and the second end of the capacitor C7 may also be used as the second end of the capacitor module.

The four capacitance model structures in fig. 7A to 7D can be used as the circuit structure of any capacitance module in the middle of fig. 3, which is not limited in the present application.

Wherein the total capacitance value of the capacitance module ranges from 0.6pF to 82pF. The capacitance value range can ensure effective filtering of interference signals (blocking signals) in the communication frequency band and ensure the signal effect of the filtering module.

Through the selection, the filtering effects of the capacitive module and the inductive module with different combinations are as follows: the channels of the first switch and the second switch are called by default according to the frequency band (resonance point, parallel resonance), default filtering selection (resonance realization) is realized, and blocking self-adaptive suppression can be realized, so that communication quality experience is improved. In the process, the suppression of the receiving channel in the same frequency band on the transmitting signal can be realized.

In addition, in the using process of the MIMO receiving channel, the problem of testing the indexes of the two paths of the RPX and the DRX can be solved without considering the problem of testing the indexes of the two paths of the RPX and the DRX by testing the method of the embodiment of the application, and the indexes of the two paths of the RPX and the DRX can meet the index test of 3 GPP. For example, four signal paths, the first two paths pass the test, and MIMO can be used.

Further, in the above process, the transmitting signal can be grounded, and the ground network can be used as a band-stop TX signal, so that TX leakage blocking RX signal can be reduced, and the received LNA device is prevented from being damaged by TX signal (transmitting channel) leakage.

The first switch and the second switch are combined and switched, and the splitting frequency is used for restraining the transmitting frequency band. In addition, the multi-band co-receiving channel can be realized through an adjustable band-stop attenuator. Under the non-blocking scene, the direct connection can be realized, and the benefits of the insertion loss can be obtained.

Fig. 8 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application.

The following describes the apparatus according to the embodiment of the present application.

Fig. 8 is a schematic hardware structure of a terminal device 100 according to an embodiment of the present application.

The embodiment will be specifically described below taking the terminal device 100 as an example. It should be understood that the terminal device 100 shown in fig. 8 is only one example, and that the terminal device 100 may have more or fewer components, may combine two or more components, or may have different component configurations. The various components shown in fig. 8 may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.

The terminal device 100 may include: processor 110, external memory interface 120, internal memory 121, universal serial bus (universal serial bus, USB) interface 130, charge management module 140, power management module 141, battery 142, antenna 1, antenna 2, mobile communication module 150, wireless communication module 160, audio module 170, speaker 170A, receiver 170B, microphone 170C, headset interface 170D, sensor module 180, keys 190, motor 191, indicator 192, camera 193, display 194, and subscriber identity module (subscriber identification module, SIM) card interface 195, etc. The sensor module 180 may include a pressure sensor 180A, a gyro sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

It is to be understood that the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the terminal device 100. In other embodiments of the application, terminal device 100 may include more or less components than illustrated, or certain components may be combined, or certain components may be split, or different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The processor 110 may include one or more processing units, such as: the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), a controller, a memory, a video codec, a digital signal processor (digital signal processor, DSP), a baseband processor, and/or a neural network processor (neural-network processing unit, NPU), etc. Wherein the different processing units may be separate devices or may be integrated in one or more processors.

The wireless communication function of the terminal device 100 can be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the terminal device 100 may be used to cover a single or multiple communication bands. Different antennas may also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed into a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution including 2G/3G/4G/5G wireless communication applied to the terminal device 100. The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA), etc. The mobile communication module 150 may receive electromagnetic waves from the antenna 1, perform processes such as filtering, amplifying, and the like on the received electromagnetic waves, and transmit the processed electromagnetic waves to the modem processor for demodulation. The mobile communication module 150 can amplify the signal modulated by the modem processor, and convert the signal into electromagnetic waves through the antenna 1 to radiate. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be provided in the same device as at least some of the modules of the processor 110.

In the embodiment of the application, the mobile communication module may be a radio frequency front end and a radio frequency transceiver in the embodiment of the application.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating the low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low frequency baseband signal to the baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transferred to the application processor. The application processor outputs sound signals through an audio device (not limited to the speaker 170A, the receiver 170B, etc.), or displays images or video through the display screen 194. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be provided in the same device as the mobile communication module 150 or other functional module, independent of the processor 110.

In the embodiment of the application, the baseband processor can be understood as a baseband module.

The wireless communication module 160 may provide solutions for wireless communication including wireless local area network (wireless local area networks, WLAN) (e.g., wireless fidelity (wireless fidelity, wi-Fi) network), bluetooth (BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field wireless communication technology (near field communication, NFC), infrared technology (IR), etc., applied to the terminal device 100. The wireless communication module 160 may be one or more devices that integrate at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, modulates the electromagnetic wave signals, filters the electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, frequency modulate it, amplify it, and convert it to electromagnetic waves for radiation via the antenna 2.

In some embodiments, antenna 1 and mobile communication module 150 of terminal device 100 are coupled, and antenna 2 and wireless communication module 160 are coupled, such that terminal device 100 may communicate with a network and other devices via wireless communication techniques. The wireless communication techniques may include the Global System for Mobile communications (global system for mobile communications, GSM), general packet radio service (general packet radio service, GPRS), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC, FM, and/or IR techniques, among others. The GNSS may include a global satellite positioning system (global positioning system, GPS), a global navigation satellite system (global navigation satellite system, GLONASS), a beidou satellite navigation system (beidou navigation satellite system, BDS), a quasi zenith satellite system (quasi-zenith satellite system, QZSS) and/or a satellite based augmentation system (satellite based augmentation systems, SBAS).

The embodiment of the application discloses electronic equipment, which comprises a communication system shown in fig. 2A-4. The electronic device may be, but not limited to, a mobile phone, a tablet, a computer, a computing device, a smart watch, a server, a calculator, a base station, and the like.

The embodiment of the application discloses a chip, which comprises the circuit structure of the filtering module 233.

The embodiment of the application discloses a radio frequency chip, which comprises the circuit structures of the radio frequency front end 230 and the radio frequency transceiver 220.

The embodiment of the application discloses a baseband chip, which can comprise a baseband module 210 and a filtering module 233, wherein the baseband module can execute the related method flow of fig. 4.

The embodiment of the application discloses a communication chip which comprises the radio frequency front end and a baseband module. The rf front-end may include a circuit structure of the filtering module 233, and the baseband module may perform the method flow in fig. 4 described above.

The embodiment of the application discloses a printed circuit board (Printed Circuit Board, PCB) board, which comprises a circuit structure of a filtering module 233.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present application are fully or partially produced. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk), etc.

Claims

1. A communication device, wherein the communication device comprises a radio frequency module and a baseband module, and the radio frequency module comprises a filtering module; the radio frequency module is connected with the baseband module; the baseband module is used for demodulating signals of the receiving channel, wherein:

the filtering module comprises a first switch, a second switch, K inductance modules and N capacitance modules; the K movable ends of the first switch are respectively connected with one ends of the K inductance modules; n movable ends of the second switch are respectively connected with one ends of the N capacitance modules;

the first switch is used for selectively connecting the inductance modules in the K inductance modules, and the second switch is used for selectively connecting the capacitance modules in the N capacitance modules; the combination of the different inductance modules and the capacitance modules is selected to be different in filtering frequency bands corresponding to the receiving channels;

under the condition that the receiving channel acquires a receiving signal, the baseband module is used for changing a matched filtering combination based on period duration and determining first signal quality information, wherein the first signal quality information is the information with the best corresponding signal quality information in the combination of all the inductance modules and the capacitance modules; the signal quality information represents the quality degree of the signal quality of the receiving channel;

The baseband module is further used for determining the matched filter combination corresponding to the first signal quality information as a target matched filter combination under the condition that all the matched filter combinations are traversed by changing; the matched filtering combination is a combination of an inductance module selected by the first switch and a capacitance module selected by the second switch;

the baseband module is also used for controlling the first switch and the second switch to selectively connect the target matched filtering combination.

2. The communication device of claim 1, wherein the radio frequency module comprises a radio frequency front end and a radio frequency transceiver; the radio frequency module comprises the filtering module, and comprises: the radio frequency module comprises the radio frequency front end, and the radio frequency front end comprises the filtering module; the radio frequency front end further comprises a low noise amplifier LNA; the other ends of the K inductance modules and the N capacitance modules in the filtering module are connected with the input end of the LNA; the output end of the LNA is connected with the radio frequency transceiver; the LNA is used for amplifying signals of the receiving channel; the radio frequency transceiver is connected with the baseband module.

3. The communication device of claim 1, wherein the control terminal of the first switch is connected to an inductance selection terminal of the baseband module, and the baseband module is further configured to send a first control signal to the control terminal of the first switch through the inductance selection terminal; the control end of the second switch is connected with the capacitance selection end of the baseband module, and the baseband module is further used for sending a second control signal to the control end of the second switch through the capacitance selection end; the combination of the inductance module and the capacitance module corresponds to the first control signal and the second control signal.

4. The communication device of claim 1, wherein the baseband module is configured to alter the matched filter combination based on the period duration and determine the first signal quality information, comprising:

and under the condition that the receiving channel acquires the receiving signal, the baseband module is used for executing a matched filtering combination changing flow based on the period duration:

the matched filtering combination changing flow comprises the following steps: the baseband module acquires first signal quality information; the baseband module controls the first switch and the second switch to change the matched filtering combination and acquire second signal quality information; readjusting first signal quality information based on the first signal quality information and the second signal quality information, and then executing the process of controlling the first switch and the second switch to change the matched filter combination again.

5. The communication device of claim 4, wherein the baseband module is further configured to end execution of the matched filter combination change procedure in the event that the receive channel ceases receiving signals.

6. The communication apparatus of claim 4, wherein the readjusting first signal quality information based on the first signal quality information and the second signal quality information comprises:

In case the first signal quality information is better than the second signal quality information, keeping the first signal quality information unchanged;

assigning a value of the second signal quality to the first signal quality information if the first signal quality information is not better than the second signal quality information.

7. The communication apparatus according to claim 4, wherein the baseband module stores a predetermined combination order, which is information that all matched filter combinations are arranged in a fixed order; the baseband module controlling the first switch and the second switch to alter a matched filter combination, comprising:

the baseband module determines a first matched filter combination based on the predetermined combination sequence and the matched filter combination before modification; the baseband module controls the first switch to selectively connect the inductance module of the first matched filtering combination, and controls the second switch to selectively connect the capacitance module of the first matched filtering combination.

8. The communication apparatus according to claim 4, wherein the baseband module is configured to perform a matched filter combination change procedure based on the period duration in a case where the reception channel acquires a reception signal, including:

At a first moment, the baseband module is used for executing the matched filtering combination changing flow first, and is also used for filtering based on the target matched filtering combination under the condition of traversing all the matched filtering combinations;

and at a second moment, the baseband module is used for re-executing the matched filtering combination changing flow, and the first moment and the second moment are separated by one period duration.

9. The communication device of claim 8, wherein the period duration ranges from 0.5s to 20s.

10. The communication apparatus of claim 8, wherein the baseband module is further configured to obtain the period duration based on a movement speed; the moving speed is the speed of equipment where the communication device is located; the faster the movement speed, the shorter the period duration.

11. The communication apparatus according to any of claims 1-10, wherein the signal quality information comprises a reference signal received quality, RSRQ, and/or a signal to interference plus noise ratio, SINR.

12. A method of communication, the method being applied to a baseband module, the method comprising:

the baseband module is connected with the filtering module, and the filtering module comprises a first switch, a second switch, K inductance modules and N capacitance modules; the K movable ends of the first switch are respectively connected with one ends of the K inductance modules; n movable ends of the second switch are respectively connected with one ends of the N capacitance modules; the first switch is selectively connected with one of the K inductance modules, and the second switch is selectively connected with one of the N capacitance modules; the combination of different inductance modules and capacitance modules is selected, and the filtering frequency bands of corresponding receiving channels are different;

Under the condition that the receiving channel acquires a receiving signal, the baseband module changes a matched filtering combination based on period duration and determines first signal quality information, wherein the first signal quality information is the information with the best corresponding signal quality information in the combination of all the inductance modules and the capacitance modules; the signal quality information represents the quality degree of the signal quality of the receiving channel;

the baseband module determines the matched filter combination corresponding to the first signal quality information as a target matched filter combination under the condition that all the matched filter combinations are traversed by changing; the matched filtering combination is a combination of an inductance module selected by the first switch and a capacitance module selected by the second switch;

the baseband module controls the first switch and the second switch to selectively connect the target matched filter combination.

13. The method of claim 12, wherein the baseband module alters the matched filter combination based on the period duration and determines the first signal quality information, comprising:

the baseband module executes a matched filter combination changing flow based on the period duration:

the matched filtering combination changing flow comprises the following steps: the baseband module acquires first signal quality information; the baseband module controls the first switch and the second switch to change the matched filtering combination and acquire second signal quality information; readjusting first signal quality information based on the first signal quality information and the second signal quality information, and thereafter performing the process of controlling the first switch and the second switch to alter the matched filter combination.

14. The method of claim 13, wherein the method further comprises:

and under the condition that the receiving channel stops receiving signals, the baseband module finishes executing the matched filtering combination changing flow.

15. The method of claim 13, wherein the readjusting first signal quality information based on the first signal quality information and the second signal quality information comprises:

16. The method of claim 13, wherein the baseband module performs a matched filter combination change procedure based on the period duration in the case that the receive channel acquires a received signal, comprising:

at a first moment, the baseband module firstly executes the matched filtering combination changing flow, and filtering is carried out based on the target matched filtering combination under the condition of traversing all the matched filtering combinations;

And at a second moment, the baseband module re-executes the matched filtering combination changing flow, and the first moment and the second moment are separated by one period duration.

17. The method of any one of claims 12-16, wherein the period duration ranges from 0.5s to 20s.

18. An electronic device, characterized in that it comprises a communication apparatus according to any of claims 1-11.

19. A communication chip, characterized in that the chip comprises a communication device according to any of claims 1-11.

20. A printed wiring board, PCB, characterized in that the PCB comprises a communication device according to any of claims 1-11.