Antenna Signal Processing Method, Apparatus and Electronic Device

Abstract

The present application provides an antenna signal processing method, apparatus and electronic device, relating to the technical field of antennas. The method includes: determining a first antenna with the highest signal-to-noise ratio among at least two antennas of a terminal; performing coherent demodulation processing on the received signal of a second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna, where the second antenna is an antenna other than the first antenna among the at least two antennas.

Description

Technical Field

[0001] This application relates to the field of antenna technology, and in particular, to an antenna signal processing method, apparatus, and electronic device. Background Art

[0002] Currently, there are radio frequency interference problems in mobile communication networks. Interference means that a signal that does not comply with the frequency allocation regulations occupies the frequency of a legitimate signal, causing the legitimate signal to malfunction. The intensity of interference can be characterized by the signal-to-noise ratio of the received signal. The smaller the signal-to-noise ratio, the greater the interference. Due to the complex environment in which the terminal is located, the antenna of the terminal is vulnerable to various interferences, resulting in a small signal-to-noise ratio of the received signal by the antenna and poor communication quality. Summary of the Invention

[0003] Embodiments of this application provide an antenna signal processing method, apparatus, and electronic device, which can solve the problem of small signal-to-noise ratio of the received signal by the antenna and poor communication quality in the prior art.

[0004] In a first aspect, embodiments of this application provide an antenna signal processing method, which includes:

[0005] Determine a first antenna with the highest signal-to-noise ratio among at least two antennas of the terminal;

[0006] Perform coherent demodulation processing on the received signal of a second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna, where the second antenna is an antenna other than the first antenna among the at least two antennas.

[0007] In a second aspect, embodiments of this application provide an antenna signal processing apparatus, which includes:

[0008] A determination module, configured to determine a first antenna with the highest signal-to-noise ratio among at least two antennas of the terminal;

[0009] A first processing module, configured to perform coherent demodulation processing on the received signal of a second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna, where the second antenna is an antenna other than the first antenna among the at least two antennas.

[0010] In a third aspect, embodiments of this application provide an electronic device, which includes a processor and a memory. The memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps in the antenna signal processing method described in the first aspect are implemented.

[0011] Fourthly, an embodiment of the present application provides a readable storage medium, on which a program or instructions are stored, and when the program or instructions are executed by a processor, the steps in the antenna signal processing method described in the first aspect are implemented.

[0012] Fifthly, an embodiment of the present application provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run a program or instructions to implement the method described in the first aspect.

[0013] Sixthly, an embodiment of the present application provides a computer program product, which is stored in a storage medium and is executed by at least one processor to implement the method described in the first aspect.

[0014] In the embodiment of the present application, a first antenna with the highest signal-to-noise ratio among at least two antennas of a terminal is determined; based on the received signal of the first antenna, coherent demodulation processing is performed on the received signal of a second antenna to improve the signal-to-noise ratio of the second antenna, where the second antenna is an antenna other than the first antenna among the at least two antennas. In this way, by performing coherent demodulation processing on the received signals of other antennas through the antenna with the highest signal-to-noise ratio among at least two antennas of the terminal, the signal-to-noise ratio of other antennas can be improved, thereby increasing the information transmission rate and improving the communication quality. Description of the Drawings

[0015] Figure 1 is one of the flowcharts of an antenna signal processing method provided by an embodiment of the present application;

[0016] Figure 2 is one of the signal reception diagrams of an antenna provided by an embodiment of the present application;

[0017] Figure 3 is the second signal reception diagram of an antenna provided by an embodiment of the present application;

[0018] Figure 4 is the third signal reception diagram of an antenna provided by an embodiment of the present application;

[0019] Figure 5 is the fourth signal reception diagram of an antenna provided by an embodiment of the present application;

[0020] Figure 6 is the fifth signal reception diagram of an antenna provided by an embodiment of the present application;

[0021] Figure 7 is the sixth signal reception diagram of an antenna provided by an embodiment of the present application;

[0022] Figure 8It is the second flowchart of an antenna signal processing method provided by an embodiment of the present application;

[0023] Figure 9 It is a schematic structural diagram of an antenna signal processing device provided by an embodiment of the present application;

[0024] Figure 10 It is one of the schematic diagrams of an electronic device provided by an embodiment of the present application;

[0025] Figure 11 It is the second schematic diagram of an electronic device provided by an embodiment of the present application. Specific Embodiments

[0026] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0027] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. generally belong to the same category, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0028] Next, the antenna signal processing method, device, and electronic device provided by the embodiments of the present application will be described in detail in conjunction with the accompanying drawings through specific embodiments and their application scenarios.

[0029] See Figure 1 , Figure 1 It is a flowchart of an antenna signal processing method provided by an embodiment of the present application. As Figure 1 shown, it includes the following steps:

[0030] Step 101: Determine a first antenna with the highest signal-to-noise ratio among at least two antennas of the terminal.

[0031] Among them, the first antenna is the antenna with the highest signal-to-noise ratio among at least two antennas of the terminal. The signal-to-noise ratio of each of the at least two antennas of the terminal can be detected through testing to determine the first antenna with the highest signal-to-noise ratio.

[0032] Step 102: Perform coherent demodulation processing on the received signal of the second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna, where the second antenna is the antenna other than the first antenna among the at least two antennas.

[0033] Among them, the performing coherent demodulation processing on the received signal of the second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna may include: obtaining, through the carrier amplitude, an ideal signal with the signal-to-noise ratio of the first antenna that simulates the useful signal waveform of the first antenna to the amplitude characteristic of the second antenna, and performing coherent demodulation processing on the received signal of the second antenna with the ideal signal as the coherent demodulation template to improve the signal-to-noise ratio of the second antenna. Exemplarily, the coherent demodulation template may be determined based on the total power value of the received signal of the first antenna, the signal peak of the received signal of the first antenna, and the signal peak of the received signal of the second antenna. The received signal of the second antenna is demodulated with the coherent demodulation template to obtain a second noise signal, and noise cancellation processing is performed on the received signal of the second antenna based on the second noise signal to improve the signal-to-noise ratio of the second antenna.

[0034] Exemplarily, the terminal includes an A1 antenna, an A2 antenna, an A3 antenna, and an A4 antenna. These four antennas correspond to four states: as Figure 2 shown, the A1 antenna is the antenna in the normal reception state; as Figure 3 shown, the A2 antenna is the antenna with environmental narrowband noise; as Figure 4 shown, the A3 antenna is the antenna with environmental broadband noise; as Figure 5 shown, the A4 antenna is the antenna with a small useful signal. Figures 2 to 5 Among them, the abscissa is time and the ordinate is the power of the signal. The A1 antenna has the highest signal-to-noise ratio. Optimization is performed on the A2 antenna, A3 antenna, and A4 antenna under the FDD communication network. The parameter description is as follows. Taking the A2 antenna as an example, the total power within the actually received signal bandwidth of the A2 antenna is P2, and the signal peak within the bandwidth is M2. A correction Ns2 = P2 - (P1 - (M1 - M2)) can be introduced and substituted into the signal-to-noise ratio SNR2 = P2 / (N2 - Ns2), where P1 is the total power within the actually received signal bandwidth of the A1 antenna, and M1 is the signal peak within the actually received signal bandwidth of the A1 antenna. It should be noted that the actual physical meaning of P1 - (M1 - M2) is to simulate, through the carrier amplitude, the useful signal waveform of A1 to the amplitude characteristic of the A2 antenna to obtain an ideal A2 signal with the SNR1 signal-to-noise ratio, and perform demodulation with this signal as the coherent demodulation template. P2 is the mixed signal of the useful signal and the noise, and its intensity is always greater than the ideal signal P1 - (M1 - M2). Therefore, N2 - Ns2 always becomes smaller and SNR2 always becomes larger.

[0035] It should be noted that with the development of mobile communication technology, new technologies are constantly being applied, new mobile network operators are emerging, radio frequency resources are becoming increasingly scarce, and various potential interference sources are constantly generated. The reasons for radio frequency interference in mobile communication networks include the occupation of existing frequency resources by the original dedicated radio systems, improper network configurations of different operators, problems with the settings of transmitters themselves, cell overlaps, the environment, electromagnetic compatibility (EMI), and intentional interference. Currently, all the radio frequency resources occupied by existing mobile communication systems are below 6G. The characteristic of this frequency band is the relationship between interference and being interfered with. Therefore, radio frequency interference problems are inevitable in mobile communication networks. Interference essentially means that signals not allocated according to frequency regulations occupy the frequencies of legitimate signals, causing the legitimate signals to malfunction.

[0036] In terms of frequency bands, it can be divided into uplink interference and downlink interference. Uplink interference is defined as interference signals in the uplink frequency band of the mobile network, where mobile base stations are interfered with by external radio frequency interference sources. The consequence of uplink interference is a reduction in the base station coverage rate. When uplink interference occurs, the signal of the terminal (such as a mobile phone) needs to be stronger than the interference signal for the base station to communicate with the terminal. Therefore, the terminal must be closer to the base station. Downlink interference refers to interference signals transmitted by interference sources in the downlink frequency band of the mobile network. The terminal receives the interference signals and cannot distinguish normal base station signals, resulting in the interruption of communication between the terminal and the base station, causing dropped calls or inability to register, and affecting the communication quality of users.

[0037] It should be noted that according to Shannon's second law (i.e., the noisy-channel coding theorem): C = B · log(1 + S / N), where C is the channel capacity, B is the channel bandwidth, S / N (or SNR, Signal-to-Noise Ratio) is the signal-to-noise ratio, and S / N is the ratio of the power of the useful signal (Power of Signal) to the power of the noise (Power of Noise), usually expressed in decibels (dB).

[0038]

[0039] Among them, P signal is the power of the signal (Power of Signal). P noise is the power of the noise (Power of Noise). From this formula, it can be known that the larger the signal-to-noise ratio (S / N) (that is, the larger the signal ratio), the larger the channel capacity. When the noise is very large (for example, in the extreme case, infinite), then the signal-to-noise ratio approaches 0, and the result of C is 0. That is to say, too much noise cannot transmit any signals. According to Shannon's law, increasing the signal-to-noise ratio can increase the channel capacity and improve the information transmission rate.

[0040] In the embodiment of the present application, the useful signal of the antenna with the best signal-to-noise ratio is used as the reference signal to establish coherent demodulation, improve the signal-to-noise ratio (SNR) of other antennas, increase the channel capacity C, improve the information transmission rate, improve the communication quality, and enhance the user experience. In the embodiment of the present application, the useful signals and environmental interference signals received by each of the multiple antennas are used for joint operations, thereby optimizing the signal-to-noise ratio of other antennas, and finally achieving the full optimization of multiple antennas without increasing the hardware cost.

[0041] It should be noted that according to the antenna sensitivity calculation formula: Ps = 10lg(KT) + 10lg(BW) + NF + SNR, where KT is the temperature noise constant, BW is the current signal bandwidth, NF is the noise figure, and SNR is the signal-to-noise ratio. The method of improving sensitivity can be achieved by improving NF or SNR. NF (noise figure) is the noise figure, and the internal loss of the hardware system can generally only be optimized through hardware. SNR is the signal-to-noise ratio, that is, Rx signal / Noise = SNR, Rx signal is the useful signal, and Noise is the noise. Therefore, the method of increasing SNR can be achieved by increasing the strength of the useful signal, that is, the size of Rx signal, or by reducing Noise. However, Rx signal is controlled by the base station, and the terminal side cannot optimize it. It can only improve the signal-to-noise ratio by reducing the noise. In this embodiment, coherent demodulation processing is performed on the received signal of the second antenna based on the received signal of the first antenna, which can reduce the noise of the received signal of the second antenna, thereby improving the signal-to-noise ratio.

[0042] In the embodiment of the present application, the first antenna with the highest signal-to-noise ratio among at least two antennas of the terminal is determined; coherent demodulation processing is performed on the received signal of the second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna, and the second antenna is the antenna other than the first antenna among the at least two antennas. In this way, by performing coherent demodulation processing on the received signals of other antennas through the antenna with the highest signal-to-noise ratio among at least two antennas of the terminal, the signal-to-noise ratio of other antennas can be improved, thereby improving the information transmission rate and the communication quality.

[0043] Optionally, the determining the first antenna with the highest signal-to-noise ratio among at least two antennas of the terminal includes:

[0044] Determining the working mode of the terminal;

[0045] In the case where the working mode of the terminal is the frequency division duplexing (FDD) mode, determining the first antenna with the highest signal-to-noise ratio among at least two antennas of the terminal.

[0046] Among them, the operating mode may include the operating system of the frequency band to which the terminal is currently connected. In different operating modes, the terminal may adopt different methods to reduce the noise of the antenna to improve the signal-to-noise ratio. When the operating mode of the terminal is the Frequency Division Duplexing (FDD) mode, coherent demodulation processing is performed on the received signal of the second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna; when the operating mode of the terminal is the Time Division Duplexing (TDD) mode, a first noise signal received by a third antenna within a target duration is obtained, where the third antenna is any one of the at least two antennas, and the target duration is a preset duration before the reception time slot of the useful signal. Noise cancellation processing is performed on the received signal of the third antenna based on the first noise signal to improve the signal-to-noise ratio of the third antenna.

[0047] It should be noted that the coherent demodulation processing of the received signal of the second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna may include performing multiple calibrations. During each calibration process, coherent demodulation processing is performed on the received signal of the second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna. If the change value of the SNR of the second antenna is less than a second preset value under continuous multiple calibrations, it is considered that the calibration is completed.

[0048] In this embodiment, the operating mode of the terminal is determined. When the operating mode of the terminal is the FDD mode, the first antenna with the highest signal-to-noise ratio among the at least two antennas of the terminal is determined, and coherent demodulation processing is performed on the received signal of the second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna. Thus, in the FDD mode, the received signal of other antennas can be coherently demodulated by the antenna with the highest signal-to-noise ratio among the at least two antennas of the terminal to improve the signal-to-noise ratio of other antennas.

[0049] Optionally, after determining the operating mode of the terminal, the method further includes:

[0050] When the operating mode of the terminal is the TDD mode, a first noise signal received by a third antenna within a target duration is obtained, where the third antenna is any one of the at least two antennas, and the target duration is a preset duration before the reception time slot of the useful signal;

[0051] Noise cancellation processing is performed on the received signal of the third antenna based on the first noise signal to improve the signal-to-noise ratio of the third antenna.

[0052] Among them, the preset duration can be set in advance. The obtaining of the first noise signal received by the third antenna within the target duration and the noise cancellation processing of the received signal of the third antenna based on the first noise signal may include: performing multiple calibrations. In each calibration process, the first noise signal received by the third antenna within the target duration is obtained, and the noise cancellation processing of the received signal of the third antenna is performed based on the first noise signal. The preset durations used in each calibration process of the multiple calibrations may be different. Exemplarily, the preset durations used in each calibration process may all be different. If the change value of the SNR of the third antenna under consecutive multiple calibrations is less than the first preset value, it is considered that the calibration is completed.

[0053] In addition, the noise cancellation processing of the received signal of the third antenna based on the first noise signal may be to use the first noise signal as the noise signal of the received signal of the third antenna for noise cancellation processing. That is, the received signal of the third antenna after the noise cancellation processing is the difference between the received signal of the third antenna before the noise cancellation processing and the first noise signal.

[0054] Exemplarily, in a TDD communication network, within the guard interval or the idle time slot, within the t0 time before the receiving time slot, the reference value Ns of the noise signal N of each antenna of the test terminal can be measured. Multiple antennas of the terminal can be tested simultaneously, or multiple antennas of the terminal can be tested in a polling manner. To distinguish the antennas, the following convention can be made: the reference value of the noise signal of antenna A1 is Ns1, and at time t0, it is Ns1t0; for FDD, this step is ignored, and all Ns values are 0. Taking the antenna with the highest SNR among multiple antennas as antenna A1 to receive the signal, as Figure 6 shown, since t0 is close to t1, it can be considered that Ns1 is similar in the two time periods. After the noise cancellation operation, that is, after the noise cancellation operation through Ns1t1 - Ns1t0, the signal-to-noise ratio SNR1 = P1 / (Ns1t1 - Ns1t0), and the signal-to-noise ratio is improved, as Figure 7 shown, Figure 7 is a schematic diagram of the received signal after the noise cancellation operation, and the noise is significantly reduced. The signal-to-noise ratios of all other antennas in the TDD network can be calculated with reference to this formula, which will not be elaborated here.

[0055] In this embodiment, when the working mode of the terminal is the time-division multiplexing TDD mode, the first noise signal received by the third antenna within the target duration is obtained, and the noise cancellation processing of the received signal of the third antenna is performed based on the first noise signal to improve the signal-to-noise ratio of the third antenna. Thus, in the TDD mode, the noise cancellation processing of the antenna of the terminal can be performed through the first noise signal received within the target duration, and the signal-to-noise ratio of the antenna of the terminal can be improved.

[0056] Optionally, obtaining the first noise signal received by the third antenna within a target duration includes:

[0057] Sending a first request for requesting reception time slot information to a network-side device;

[0058] Obtaining the reception time slot information fed back by the network-side device, and obtaining the first noise signal received by the third antenna within the target duration based on the reception time slot information.

[0059] Wherein, the reception time slot information may include a reception time slot plan. The reception time slot information may include the reception time slot of the useful signal of the third antenna. The first request may be a calibration request. When receiving the calibration request, the network-side device sends the reception time slot information to the terminal, so that the terminal obtains the first noise signal received by the third antenna within the target duration based on the reception time slot information.

[0060] In addition, the reception time slot information may include the reception time slot of the useful signal of the third antenna, so that the terminal can obtain the first noise signal received by the third antenna within a preset duration before the reception time slot of the useful signal, and perform noise cancellation processing on the reception signal of the third antenna based on the first noise signal to improve the signal-to-noise ratio of the third antenna.

[0061] In this embodiment, a first request for requesting reception time slot information is sent to the network-side device, the reception time slot information fed back by the network-side device is obtained, and the first noise signal received by the third antenna within the target duration is obtained based on the reception time slot information. In this way, the reception time slot information can be determined through the interaction between the terminal and the network-side device, so that the time for receiving the first noise signal can be determined through the reception time slot information, and further the first noise signal can be obtained.

[0062] Optionally, performing coherent demodulation processing on the reception signal of the second antenna based on the reception signal of the first antenna to improve the signal-to-noise ratio of the second antenna includes:

[0063] Determining a coherent demodulation template based on the total power value of the reception signal of the first antenna, the signal peak of the reception signal of the first antenna, and the signal peak of the reception signal of the second antenna;

[0064] Demodulating the reception signal of the second antenna with the coherent demodulation template to obtain a second noise signal;

[0065] Performing noise cancellation processing on the reception signal of the second antenna based on the second noise signal to improve the signal-to-noise ratio of the second antenna.

[0066] Among them, the second noise signal can be the difference between the total power value of the received signal of the second antenna and the coherent demodulation template. The noise cancellation process for the received signal of the second antenna based on the second noise signal can be to use the second noise signal as the noise signal of the received signal of the second antenna for noise cancellation processing. That is, the received signal of the second antenna after the noise cancellation processing is the difference between the received signal of the second antenna before the noise cancellation processing and the second noise signal. The total power value of the received signal of the second antenna can be the total power value P2 within the signal bandwidth actually received by the second antenna.

[0067] In this embodiment, based on the total power value of the received signal of the first antenna, the signal peak value of the received signal of the first antenna, and the signal peak value of the received signal of the second antenna, a coherent demodulation template is determined; the received signal of the second antenna is demodulated with the coherent demodulation template to obtain a second noise signal; the received signal of the second antenna is subjected to noise cancellation processing based on the second noise signal to improve the signal-to-noise ratio of the second antenna. Thus, coherent demodulation of the received signal of the second antenna can be achieved, and the signal-to-noise ratio of the second antenna can be improved.

[0068] Optionally, the coherent demodulation template is the difference between the total power value of the received signal of the first antenna and a first difference, and the first difference is the difference between the signal peak value of the received signal of the first antenna and the signal peak value of the received signal of the second antenna.

[0069] Among them, the total power value of the received signal of the first antenna can be the total power value P1 within the signal bandwidth actually received by the first antenna. The signal peak value of the received signal of the first antenna can be the signal peak value M1 within the signal bandwidth actually received by the first antenna, and the difference between the signal peak values of the received signals of the second antenna can be the signal peak value M2 within the signal bandwidth actually received by the second antenna.

[0070] In this embodiment, the coherent demodulation template is the difference between the total power value of the received signal of the first antenna and a first difference, and the first difference is the difference between the signal peak value of the received signal of the first antenna and the signal peak value of the received signal of the second antenna. In this way, coherent demodulation of the useful signals of other antennas of the terminal can be achieved with the useful signal of the first antenna as the reference signal.

[0071] The antenna signal processing method of the present application is described below through a specific embodiment. In this embodiment, with the cooperation of the base station signal, it is divided into two stages: the base station transmits a known measurement signal and the normal communication process. Specifically, as Figure 8 shown, the antenna signal processing method includes the following processes:

[0072] S1: The terminal obtains the working mode information of the currently connected frequency band. If the current working mode is TDD, it enters S21; if the current working mode is FDD, it enters S22;

[0073] S21: The terminal sends a calibration request to the base station. The base station sends the subsequent receive time slot plan to the terminal according to the requirements (without affecting normal communication);

[0074] S31: The terminal receives the receive time slot plan, sets the initial environmental interference test window t0, detects the noise of each antenna t0 before the receive time slot, and improves the SNR of each antenna within the receive time slot;

[0075] Among them, the method of improving the SNR of each antenna within the receive time slot is: obtaining the first noise signal received by the third antenna within the target duration, where the third antenna is any one of the at least two antennas, and the target duration is a preset duration before the receive time slot of the useful signal; performing noise cancellation processing on the received signal of the third antenna based on the first noise signal to improve the signal-to-noise ratio of the third antenna. Taking antenna A1 as an example, after performing noise cancellation operation through Ns1t1 - Ns1t0, the signal-to-noise ratio SNR1 = P1 / (Ns1t1 - Ns1t0), and the signal-to-noise ratio is improved. The signal-to-noise ratios of all other antennas in the TDD network can be calculated with reference to this formula.

[0076] In addition, t0 can be adjusted and noise calibration can be performed again in the next receive time slot.

[0077] S41: Adjust t0. When the change value of SNR is less than the first preset value under continuous calibration for multiple times, it is considered that the optimization is completed and the noise calibration is stopped.

[0078] S51: Detect the SNR in real time. When the average change value of the continuously detected SNR is greater than the first threshold or the single SNR is greater than the second threshold for three consecutive times, return to S21.

[0079] S22: Start calibration. The terminal detects the noise of each antenna, confirms the antenna with the highest SNR, obtains the signal model, and improves the SNR of other antennas;

[0080] Among them, the signal model may include the total power value of the received signal of the antenna with the highest SNR and the signal peak of the received signal of the antenna with the highest SNR.

[0081] In addition, the method for improving the SNR of other antennas can be as follows: Coherently demodulate the received signal of the second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna. The first antenna is the antenna with the highest SNR among at least two antennas of the terminal, and the second antenna is the antenna other than the first antenna among the at least two antennas. Taking the example that the antennas of the terminal at least include antenna A1 and antenna A2, and the antenna with the highest SNR is antenna A1, for antenna A2, the total power within the actual received signal bandwidth of antenna A2 is P2, and the signal peak value within the bandwidth is M2. A correction Ns2 = P2 - (P1 - (M1 - M2)) can be introduced. Substituting it into the signal-to-noise ratio SNR2 = P2 / (N2 - Ns2), since the intensity of P2 is always greater than the ideal signal P1 - (M1 - M2), N2 - Ns2 always becomes smaller and SNR2 always becomes larger.

[0082] S32: When, under continuous calibration, the change value of SNR is less than the second preset value, it is considered that the optimization is completed and the calibration is stopped.

[0083] S42: Detect SNR in real time. When the average change value of the continuously detected SNR is greater than the third threshold or the single SNR is greater than the fourth threshold for three consecutive times, return to S22.

[0084] In the antenna signal processing method provided by the embodiments of the present application, the execution subject can be an antenna signal processing device. In the embodiments of the present application, taking the antenna signal processing device as an example to execute the antenna signal processing method, the antenna signal processing device provided by the embodiments of the present application is described.

[0085] See Figure 9 , Figure 9 is a schematic structural diagram of an antenna signal processing device provided by the embodiments of the present application. As Figure 9 shown, the antenna signal processing device 200 includes:

[0086] A determination module 201, configured to determine a first antenna with the highest SNR among at least two antennas of the terminal;

[0087] A first processing module 202, configured to coherently demodulate the received signal of the second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna. The second antenna is the antenna other than the first antenna among the at least two antennas.

[0088] Optionally, the determination module is specifically configured to:

[0089] Determine the working mode of the terminal;

[0090] When the working mode of the terminal is the frequency division duplexing FDD mode, determine a first antenna with the highest SNR among at least two antennas of the terminal.

[0091] Optionally, the device further includes:

[0092] An acquisition module, configured to, when the working mode of the terminal is a time division duplex (TDD) mode, acquire a first noise signal received by a third antenna within a target duration, where the third antenna is any one of the at least two antennas, and the target duration is a preset duration before a reception time slot of a useful signal;

[0093] A second processing module, configured to perform noise cancellation processing on the reception signal of the third antenna based on the first noise signal to improve the signal-to-noise ratio of the third antenna.

[0094] Optionally, the acquisition module is specifically configured to:

[0095] When the working mode of the terminal is a time division duplex (TDD) mode,

[0096] Send a first request for requesting reception time slot information to a network-side device;

[0097] Acquire the reception time slot information fed back by the network-side device, and acquire a first noise signal received by the third antenna within a target duration based on the reception time slot information.

[0098] Optionally, the first processing module includes:

[0099] A determination unit, configured to determine a coherent demodulation template based on the total power value of the reception signal of the first antenna, the signal peak of the reception signal of the first antenna, and the signal peak of the reception signal of the second antenna;

[0100] A demodulation unit, configured to demodulate the reception signal of the second antenna with the coherent demodulation template to obtain a second noise signal;

[0101] A processing unit, configured to perform noise cancellation processing on the reception signal of the second antenna based on the second noise signal to improve the signal-to-noise ratio of the second antenna.

[0102] Optionally, the coherent demodulation template is the difference between the total power value of the reception signal of the first antenna and a first difference, where the first difference is the difference between the signal peak of the reception signal of the first antenna and the signal peak of the reception signal of the second antenna.

[0103] In the embodiment of the present application, the determination module determines the first antenna with the highest signal-to-noise ratio among at least two antennas of the terminal; the first processing module performs coherent demodulation processing on the received signal of the second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna, where the second antenna is the antenna other than the first antenna among the at least two antennas. In this way, by performing coherent demodulation processing on the received signals of other antennas using the antenna with the highest signal-to-noise ratio among at least two antennas of the terminal, the signal-to-noise ratio of other antennas can be improved, thereby increasing the information transmission rate and improving the communication quality.

[0104] The antenna signal processing device in the embodiment of the present application can be an electronic device or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or other devices other than the terminal. Exemplarily, the electronic device can be a mobile phone, a tablet computer, a laptop computer, a handheld computer, a vehicle-mounted electronic device, a Mobile Internet Device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc. It can also be a server, a Network Attached Storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, etc. The embodiment of the present application does not make specific limitations.

[0105] The antenna signal processing device in the embodiment of the present application can be a device with an operating system. The operating system can be the Android operating system, the iOS operating system, or other possible operating systems. The embodiment of the present application does not make specific limitations.

[0106] The antenna signal processing device provided in the embodiment of the present application can implement Figure 1 each process implemented by the method embodiment. To avoid repetition, it will not be elaborated here.

[0107] Optionally, as Figure 10As shown in the figure, an embodiment of the present application further provides an electronic device 300, including a processor 301 and a memory 302. A program or instruction that can run on the processor 301 is stored on the memory 302. When the program or instruction is executed by the processor 301, each step of the above antenna signal processing method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be elaborated here.

[0108] It should be noted that the electronic device in the embodiment of the present application includes the above-mentioned mobile electronic device and non-mobile electronic device.

[0109] Figure 11 It is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present application.

[0110] The electronic device 400 includes but is not limited to: a radio frequency unit 401, a network module 402, an audio output unit 403, an input unit 404, a sensor 405, a display unit 406, a user input unit 407, an interface unit 408, a memory 409, and a processor 410 and other components.

[0111] Those skilled in the art can understand that the electronic device 400 may further include a power supply (such as a battery) for supplying power to each component. The power supply can be logically connected to the processor 410 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system. Figure 11 The structure of the electronic device shown in does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0112] Among them, the processor 410 is used to: determine the first antenna with the highest signal-to-noise ratio among at least two antennas of the terminal;

[0113] The processor 410 is further used to: perform coherent demodulation processing on the received signal of the second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna, where the second antenna is an antenna other than the first antenna among the at least two antennas.

[0114] Optionally, the processor 410 is further used to:

[0115] Determine the working mode of the terminal;

[0116] When the working mode of the terminal is the frequency division duplexing FDD mode, determine the first antenna with the highest signal-to-noise ratio among at least two antennas of the terminal.

[0117] Optionally, the processor 410 is further used to:

[0118] When the operating mode of the terminal is the time-division duplexing (TDD) mode, obtain a first noise signal received by a third antenna within a target duration, where the third antenna is any one of the at least two antennas, and the target duration is a preset duration before the reception time slot of the useful signal;

[0119] Perform noise cancellation processing on the received signal of the third antenna based on the first noise signal to improve the signal-to-noise ratio of the third antenna.

[0120] Optionally, the radio frequency unit 401 is configured to: send a first request for requesting reception time slot information to the network-side device;

[0121] The processor 410 is further configured to:

[0122] Obtain the reception time slot information fed back by the network-side device, and obtain a first noise signal received by the third antenna within the target duration based on the reception time slot information.

[0123] Optionally, the processor 410 is further configured to:

[0124] Determine a coherent demodulation template based on the total power value of the received signal of the first antenna, the signal peak of the received signal of the first antenna, and the signal peak of the received signal of the second antenna;

[0125] Demodulate the received signal of the second antenna with the coherent demodulation template to obtain a second noise signal;

[0126] Perform noise cancellation processing on the received signal of the second antenna based on the second noise signal to improve the signal-to-noise ratio of the second antenna.

[0127] Optionally, the coherent demodulation template is the difference between the total power value of the received signal of the first antenna and a first difference, where the first difference is the difference between the signal peak of the received signal of the first antenna and the signal peak of the received signal of the second antenna.

[0128] It should be understood that in the embodiments of the present application, the input unit 404 may include a Graphics Processing Unit (GPU) 4041 and a microphone 4042. The GPU 4041 processes the image data of static pictures or videos obtained by an image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 406 may include a display panel 4061, and the display panel 4061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 407 includes at least one of a touch panel 4071 and other input devices 4072. The touch panel 4071 is also called a touch screen. The touch panel 4071 may include two parts: a touch detection device and a touch controller. The other input devices 4072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be elaborated here.

[0129] The memory 409 can be used to store software programs and various data. The memory 409 mainly includes a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area can store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 409 can include a volatile memory or a non-volatile memory, or the memory 409 can include both a volatile memory and a non-volatile memory. Among them, the non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 409 in the embodiments of the present application includes, but is not limited to, these and any other suitable types of memories.

[0130] The processor 410 may include one or more processing units; optionally, the processor 410 integrates an application processor and a modem processor. Among them, the application processor mainly processes operations related to the operating system, user interface, application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor may not be integrated into the processor 410 either.

[0131] The embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements each process of the above-mentioned antenna signal processing method embodiment and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0132] Among them, the processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disc, etc.

[0133] The embodiment of the present application further provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement each process of the above-mentioned antenna signal processing method embodiment and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0134] It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-on-chip, system chip, chip system or system-on-chip, etc.

[0135] The embodiment of the present application provides a computer program product, which is stored in a storage medium. The program product is executed by at least one processor to implement each process of the above-mentioned antenna signal processing method embodiment and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0136] It should be noted that in this text, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0137] From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions for causing a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present application.

[0138] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Those of ordinary skill in the art, under the inspiration of the present application and without departing from the purpose of the present application and the scope protected by the claims, can still make many forms, all of which fall within the protection scope of the present application.

Claims

1. An antenna signal processing method, characterized in that, The method includes: Determining a first antenna with the highest signal-to-noise ratio among at least two antennas of a terminal; Performing coherent demodulation processing on the received signal of a second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna, where the second antenna is an antenna other than the first antenna among the at least two antennas; The performing coherent demodulation processing on the received signal of the second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna includes: Determining a coherent demodulation template based on the total power value of the received signal of the first antenna, the signal peak of the received signal of the first antenna, and the signal peak of the received signal of the second antenna; Demodulating the received signal of the second antenna with the coherent demodulation template to obtain a second noise signal; Performing noise cancellation processing on the received signal of the second antenna based on the second noise signal to improve the signal-to-noise ratio of the second antenna; Wherein, the coherent demodulation template is the difference between the total power value of the received signal of the first antenna and a first difference, and the first difference is the difference between the signal peak of the received signal of the first antenna and the signal peak of the received signal of the second antenna; The second noise signal is the difference between the total power value of the received signal of the second antenna and the coherent demodulation template.

2. The method according to claim 1, characterized in that, The determining a first antenna with the highest signal-to-noise ratio among at least two antennas of a terminal includes: Determining the working mode of the terminal; When the working mode of the terminal is the frequency division duplexing (FDD) mode, determining a first antenna with the highest signal-to-noise ratio among at least two antennas of the terminal.

3. The method according to claim 2, characterized in that, After determining the working mode of the terminal, the method further includes: When the working mode of the terminal is the time division duplexing (TDD) mode, obtaining a first noise signal received by a third antenna within a target duration, where the third antenna is any one of the at least two antennas, and the target duration is a preset duration before the reception time slot of the useful signal; Performing noise cancellation processing on the received signal of the third antenna based on the first noise signal to improve the signal-to-noise ratio of the third antenna.

4. The method according to claim 3, characterized in that, The obtaining a first noise signal received by a third antenna within a target duration includes: Sending a first request for requesting reception time slot information to a network-side device; Obtaining the reception time slot information fed back by the network-side device, and obtaining a first noise signal received by the third antenna within the target duration based on the reception time slot information.

5. An antenna signal processing device, characterized in that, The apparatus includes: A determination module, configured to determine a first antenna with the highest signal-to-noise ratio among at least two antennas of a terminal; A first processing module, configured to perform coherent demodulation processing on the received signal of a second antenna based on the received signal of the first antenna to improve the signal-to-noise ratio of the second antenna, where the second antenna is an antenna other than the first antenna among the at least two antennas; The first processing module includes: A determination unit, configured to determine a coherent demodulation template based on the total power value of the received signal of the first antenna, the signal peak of the received signal of the first antenna, and the signal peak of the received signal of the second antenna; A demodulation unit, configured to demodulate the received signal of the second antenna with the coherent demodulation template to obtain a second noise signal; A processing unit, configured to perform noise cancellation processing on the received signal of the second antenna based on the second noise signal to improve the signal-to-noise ratio of the second antenna; Wherein, the coherent demodulation template is the difference between the total power value of the received signal of the first antenna and a first difference, and the first difference is the difference between the signal peak value of the received signal of the first antenna and the signal peak value of the received signal of the second antenna; The second noise signal is the difference between the total power value of the received signal of the second antenna and the coherent demodulation template.

6. The device according to claim 5, characterized in that, The determining module is specifically configured to: Determine the working mode of the terminal; When the working mode of the terminal is the frequency division duplexing (FDD) mode, determine the first antenna with the highest signal-to-noise ratio among at least two antennas of the terminal.

7. The device according to claim 6, characterized in that, The apparatus further includes: An obtaining module, configured to obtain a first noise signal received by a third antenna within a target duration when the working mode of the terminal is the time division duplexing (TDD) mode, where the third antenna is any one of the at least two antennas, and the target duration is a preset duration before the reception time slot of the useful signal; A second processing module, configured to perform noise cancellation processing on the received signal of the third antenna based on the first noise signal to improve the signal-to-noise ratio of the third antenna.

8. The device according to claim 7, wherein, The obtaining module is specifically configured to: When the working mode of the terminal is the time division duplexing (TDD) mode, Send a first request for requesting reception time slot information to the network side device; Obtain the reception time slot information fed back by the network side device, and obtain the first noise signal received by the third antenna within the target duration based on the reception time slot information.

9. An electronic device, wherein, Comprising a processor and a memory, the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the antenna signal processing method according to any one of claims 1-4 are implemented.

10. A readable storage medium, wherein, A program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the antenna signal processing method according to any one of claims 1-4 are implemented.

Images