A signal communication terminal system and method thereof

Abstract

The present invention relates to the field of signal communication technologies, and particularly to a signal communication terminal system, which includes a transmitting end and a receiving end. The transmitting end includes an antenna matrix, a radio frequency module, a baseband processing module, a data analysis module, and a control module, and is used for transmitting millimeter-wave signals, up-converting baseband signals to the millimeter-wave frequency band, modulating and encoding data streams, determining the communication mode, and controlling the communication process according to the analysis results. The data analysis module determines the communication mode and the frequency selection mode of millimeter-wave signals according to feedback signals. The data analysis module can also determine the preset code rate, the number of array elements of a sub-array, the transmitting end power, the modulation mode of millimeter-wave signals, and the encoding mode of information according to path loss, packet loss rate, and link system margin. The present invention overcomes the problems of poor communication reliability and unstable data transmission in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of signal communication technologies, and particularly to a signal communication terminal system and a method thereof. Background Art

[0002] With the development of communication technologies, the service data processing capacity of low-frequency carriers has gradually been unable to meet the growing data service demands. Therefore, millimeter-wave communication has become one of the current methods for solving high-speed data communication. The wireless signal energy transmitted using millimeter waves has a high degree of directivity. Research results show that when using the 60 GHz frequency band for wireless transmission, 99.99% of the signal energy is concentrated within a beam range of 4.7 degrees. Therefore, when using the millimeter-wave band for wireless communication, high-frequency directional antennas or phased arrays are usually used for directional transmission of multiple beams, but the anti-interference ability is relatively poor, and there cannot be obstacles in the signal transmission path.

[0003] Chinese Patent Publication No.: CN201610028908.2 discloses a transmission method, a base station, and a terminal for implementing millimeter-wave communication, including that after the terminal completes synchronization, the base station performs hybrid beamforming, sends different port and beam combination information to the terminal during beam training, and sends a signaling for triggering a feedback method to the terminal according to the current available port resource situation; the base station reallocates the transmit ports and transmit beams according to the current available resource situation and the transmit port and transmit beam combination information of the base station fed back by the terminal port, and feeds the reallocated information back to the terminal.

[0004] It can be seen that the existing technologies have the following problems: In the presence of obstacles, the signal will be blocked by the obstacles, resulting in poor communication reliability and unstable data transmission. Summary of the Invention

[0005] For this reason, the present invention provides a signal communication terminal system and a method thereof to overcome the problems of poor communication reliability and unstable data transmission in the existing technologies.

[0006] To achieve the above object, on the one hand, the present invention provides a signal communication terminal system and a method thereof, including:

[0007] A transmitting end, including an antenna matrix for transmitting millimeter-wave signals, a radio frequency module for up-converting a baseband signal to the millimeter-wave frequency band, and a baseband processing module for modulating and encoding a data stream; a data analysis module for determining a communication mode, and a control module for controlling a communication process according to the analysis result of the data analysis module;

[0008] A receiving end for receiving the millimeter-wave signals transmitted by the transmitting end and returning a feedback signal to the transmitting end after receiving the millimeter-wave signals transmitted by the transmitting end.

[0009] Further, the data analysis module determines several communication modes of the transmitting end according to whether the feedback signal is received at the transmitting end. The communication modes include a first communication mode of communicating through an antenna matrix with the maximum number of array elements and a second communication mode of communicating through a sub-array of the antenna matrix. The data analysis module determines the number of array elements of the sub-array according to the feedback signal.

[0010] Further, when the communication mode of the transmitting end is the first communication mode, the data analysis module determines several frequency selection methods of the millimeter-wave signal according to the comparison result between the distance between the transmitting end and the receiving end and the distance standard. The frequency selection methods include a first frequency selection method in which the data analysis module determines the frequency of the millimeter-wave signal according to the bit rate of the video data in the data stream to be transmitted, and a second frequency selection method in which the data analysis module calculates the first difference between the distance between the transmitting end and the receiving end and the distance standard, and determines the frequency of the millimeter-wave signal according to the first difference.

[0011] Further, when the frequency selection method of the millimeter-wave signal is the first frequency selection method, the data analysis module determines several frequencies of the millimeter-wave signal according to the comparison result between the bit rate of the video data in the data stream to be transmitted and the preset bit rate. When the frequency selection method of the millimeter-wave signal is the second frequency selection method, the data analysis module calculates the first difference between the distance between the transmitting end and the receiving end and the distance standard, and determines several frequencies of the millimeter-wave signal according to the comparison result between the first difference and the first preset difference.

[0012] Further, when the communication mode of the transmitting end is the first communication mode, the data analysis module determines several adjustment coefficients of the preset bit rate and the first preset difference according to the comparison result between the path loss and the preset path loss to adjust the preset bit rate and the first preset difference.

[0013] Further, when the communication mode of the transmitting end is the second communication mode, the data analysis module determines the number of array elements of the sub-array of the antenna matrix according to the comparison result between the packet loss rate and the preset loss rate.

[0014] Further, when the communication mode of the transmitting end is the second communication mode, the data analysis module calculates the second difference between the packet loss rate and the preset loss rate, and determines several transmitting end powers according to the comparison result between the second difference and the second preset difference.

[0015] Further, the data analysis module determines several modulation methods of the millimeter-wave signal according to the comparison result between the link system margin and the preset link system margin. The modulation methods include a first modulation method of QPSK (Quadrature Phase Shift Keying) and a second modulation method of 256-QAM (Quadrature Amplitude Modulation).

[0016] Further, the data analysis module calculates the relative difference between the link system margin and the preset link system margin, and determines several coding methods of the information according to the comparison result between the relative difference and the preset relative difference. The several coding methods include a first coding method of convolutional coding and a second coding method of Turbo coding.

[0017] On the other hand, the present invention provides a communication method for the above signal communication terminal system, including:

[0018] Step S1, the transmitting end transmits a detection signal, and the data analysis module determines several communication methods of the transmitting end according to whether the feedback signal is received by the transmitting end;

[0019] Step S2, the data analysis module determines several frequency selection methods of the millimeter-wave signal according to the comparison result between the distance between the transmitting end and the receiving end and the distance standard;

[0020] Step S3, the data analysis module determines several frequencies of the millimeter-wave signal according to the comparison result between the code rate of the video data in the data stream to be transmitted and the preset code rate. The data analysis module calculates the first difference between the distance between the transmitting end and the receiving end and the distance standard, and determines several frequencies of the millimeter-wave signal according to the comparison result between the first difference and the first preset difference;

[0021] Step S4, the data analysis module determines several adjustment coefficients of the preset code rate and the first preset difference according to the comparison result between the path loss and the preset path loss to adjust the preset code rate and the first preset difference;

[0022] Step S5, the data analysis module determines several element numbers of the sub-arrays of the antenna matrix according to the comparison result between the packet loss rate and the preset loss rate;

[0023] Step S6, the data analysis module calculates the second difference between the packet loss rate and the preset loss rate, and determines several transmitting end powers according to the comparison result between the second difference and the second preset difference;

[0024] Step S7, the data analysis module determines several modulation methods of the millimeter-wave signal according to the comparison result between the link system margin and the preset link system margin;

[0025] Step S8, the data analysis module calculates the relative difference between the link system margin and the preset link system margin, and determines several coding methods of the information according to the comparison result between the relative difference and the preset relative difference.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows. When the transmitting end receives the feedback signal, it indicates that the communication environment is good and there is no obstacle blocking. The antenna matrix with the maximum number of array elements is used for communication, and the millimeter-wave signal has strong directivity, so as to achieve higher data transmission stability. When the transmitting end does not receive the feedback signal, it indicates that the communication environment is poor and there are obstacles. By using the sub-array of the antenna matrix for communication, the coverage range of the millimeter-wave signal is wider, thus improving the communication reliability.

[0027] Furthermore, in the present invention, when the distance between the transmitting end and the receiving end is less than the distance standard, the frequency of the millimeter-wave signal is determined according to the code rate of the video data to ensure the data transmission rate. When the distance between the transmitting end and the receiving end is greater than the distance standard, the frequency of the millimeter-wave signal is determined according to the first difference to ensure the communication reliability.

[0028] Furthermore, the present invention uses a higher millimeter-wave signal frequency to provide a larger bandwidth, thereby achieving a higher data transmission rate. By dynamically adjusting the frequency of the millimeter-wave signal according to the code rate of the video data, while ensuring the communication reliability, the data transmission rate is improved, thus improving the communication efficiency.

[0029] Furthermore, the present invention dynamically adjusts the frequency of the millimeter-wave signal according to the distance. While ensuring the communication reliability, the data transmission rate is increased as much as possible, thus improving the communication efficiency. By using a lower millimeter-wave signal frequency, the communication reliability is maintained in a poor communication environment.

[0030] Furthermore, the present invention dynamically adjusts the preset code rate and the preset difference according to the path loss. While ensuring the communication reliability, the data transmission rate is improved, thus improving the communication efficiency. By reducing the preset code rate and the preset difference in the case of a large path loss, the communication reliability can be maintained. The preset code rate and the preset difference are flexibly adjusted according to the path loss, and these two parameters are flexibly adjusted according to the actual communication environment requirements, so as to achieve more stable communication performance.

[0031] Furthermore, the present invention uses the sub-arrays of the antenna matrix with different numbers of array elements for communication, and flexibly adjusts the coverage range of the millimeter-wave signal, thereby improving the communication reliability.

[0032] Furthermore, when the difference between the data packet loss rate and the preset loss rate is less than the preset difference in the present invention, the communication quality is good. At this time, the transmitting power is set to a relatively low first power. When the difference between the data packet loss rate and the preset loss rate is greater than the preset difference, the communication quality is poor. The transmitting power is increased to improve the communication quality, and the transmitting power is dynamically adjusted according to the real-time situation of the communication quality to save energy consumption and ensure the communication quality.

[0033] Furthermore, when the link system margin is less than or equal to the preset margin in the present invention, the first modulation method is selected, which is a relatively stable but low-spectrum-efficiency modulation method. When the link system margin is greater than the preset margin, the second modulation method is selected, which is a high-spectrum-efficiency but more vulnerable to noise interference modulation method. Different modulation methods are selected according to the real-time situation of the link capacity to maximize the spectrum efficiency while ensuring the stable operation of the system.

[0034] Furthermore, the present invention adjusts the system parameters in real time according to the changes in the transmission environment and link quality, adopts a more suitable coding method, realizes the dynamic balance of throughput and reliability, and thus improves the overall performance of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is the structural diagram of the signal communication terminal system according to the embodiment of the present invention;

[0036] Figure 2 is the flowchart of the communication method according to the signal communication terminal system of the embodiment of the present invention;

[0037] where 1 - transmitting end, 2 - antenna matrix. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] In order to make the objectives and advantages of the present invention clearer, the present invention will be further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and do not limit the protection scope of the present invention.

[0040] In addition, it should be noted that in the description of the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

[0041] Please refer to Figure 1 and Figure 2 as shown Figure 1 which is the structural diagram of the signal communication terminal system according to an embodiment of the present invention; Figure 2 which is the flowchart of the communication method according to the signal communication terminal system according to an embodiment of the present invention.

[0042] The signal communication terminal system according to an embodiment of the present invention includes:

[0043] A transmitting end, including an antenna matrix for transmitting millimeter-wave signals, a radio frequency module for up-converting a baseband signal to the millimeter-wave frequency band, and a baseband processing module for modulating and encoding a data stream; a data analysis module for determining a communication mode;

[0044] A receiving end, for receiving the millimeter-wave signals transmitted by the transmitting end and returning a feedback signal to the transmitting end after receiving the millimeter-wave signals transmitted by the transmitting end.

[0045] Specifically, the data analysis module determines the communication mode of the transmitting end according to whether the feedback signal is received by the transmitting end;

[0046] If the transmitting end receives the feedback signal, the data analysis module determines that the communication mode of the transmitting end is the first communication mode;

[0047] If the transmitting end does not receive the feedback signal, the data analysis module determines that the communication mode of the transmitting end is the second communication mode;

[0048] The first communication mode is to communicate through an antenna matrix with the maximum number of array elements, and the second communication mode is to communicate through a sub-array of the antenna matrix. The data analysis module determines the number of array elements of the sub-array according to the feedback signal.

[0049] In the embodiment of the present invention, the antenna matrix with the maximum number of array elements is an 8×8 antenna matrix.

[0050] Specifically, in the present invention, when the transmitting end receives the feedback signal, it indicates that the communication environment is good without obstacle occlusion, and the antenna matrix with the maximum number of array elements is used for communication. The millimeter-wave signal has strong directivity, so as to achieve higher data transmission stability; when the transmitting end does not receive the feedback signal, it indicates that the communication environment is poor with obstacles, and the sub-array of the antenna matrix is used for communication, and the coverage range of the millimeter-wave signal is wider, so as to improve the reliability of communication.

[0051] Specifically, when the communication mode of the transmitting end is the first communication mode, the data analysis module determines the frequency selection method of the millimeter-wave signal according to the comparison result between the distance D between the transmitting end and the receiving end and the distance standard D0;

[0052] If D ≤ D0, the data analysis module determines that the frequency selection method of the millimeter-wave signal is the first frequency selection method;

[0053] If D > D0, the data analysis module determines that the frequency selection method of the millimeter-wave signal is the second frequency selection method;

[0054] Among them, the first frequency selection method is that the data analysis module determines the frequency of the millimeter-wave signal according to the bit rate of the video data in the data stream to be transmitted, and the second frequency selection method is that the data analysis module calculates the first difference ΔD between the distance D between the transmitter and the receiver and the distance standard D0, and determines the frequency of the millimeter-wave signal according to the first difference ΔD.

[0055] In the embodiment of the present invention, the distance standard D0 is set to 5 meters, and those skilled in the art can adjust the distance standard D0 according to specific situations.

[0056] Specifically, in the present invention, when the distance between the transmitter and the receiver is less than the distance standard, the frequency of the millimeter-wave signal is determined according to the bit rate of the video data to ensure the data transmission rate; when the distance between the transmitter and the receiver is greater than the distance standard, the frequency of the millimeter-wave signal is determined according to the first difference to ensure the communication reliability.

[0057] Specifically, in the case where the frequency selection method of the millimeter-wave signal is the first frequency selection method, the data analysis module determines the frequency of the millimeter-wave signal according to the comparison result between the bit rate B of the video data in the data stream to be transmitted and the preset bit rate B0

[0058] If B ≤ B0, the data analysis module determines that the frequency of the millimeter-wave signal is the first frequency;

[0059] If B > B0, the data analysis module determines that the frequency of the millimeter-wave signal is the second frequency;

[0060] In the embodiment of the present invention, the first frequency is set to 80 GHz, the second frequency is set to 120 GHz, and the preset bit rate B0 is set to 500 Mbps. Those skilled in the art can adjust the frequency and the preset bit rate according to specific situations.

[0061] Specifically, the present invention uses a higher millimeter-wave signal frequency to provide a larger bandwidth, thereby achieving a higher data transmission rate. By dynamically adjusting the frequency of the millimeter-wave signal according to the bit rate of the video data, while ensuring the communication reliability, the data transmission rate is improved, thereby improving the communication efficiency.

[0062] Specifically, when the frequency selection method of the millimeter-wave signal is the second frequency selection method, the data analysis module calculates the first difference ΔD between the distance D between the transmitter and the receiver and the standard distance D0, and determines the frequency of the millimeter-wave signal according to the comparison result between the first difference ΔD and the first preset difference ΔD0. Let ΔD = D - D0;

[0063] If ΔD ≤ ΔD0, the data analysis module determines that the frequency of the millimeter-wave signal is the third frequency;

[0064] If ΔD > ΔD0, the data analysis module determines that the frequency of the millimeter-wave signal is the fourth frequency;

[0065] In the embodiment of the present invention, the third frequency is 77 GHz, the fourth frequency is 60 GHz, and the first preset difference ΔD0 is 1 meter. Those skilled in the art can adjust the frequency and the first preset difference according to specific situations.

[0066] Specifically, the present invention dynamically adjusts the frequency of the millimeter-wave signal according to the distance, improves the data transmission rate as much as possible while ensuring communication reliability, thereby improving communication efficiency, and maintains communication reliability in a poor communication environment by using a lower millimeter-wave signal frequency.

[0067] Specifically, when the communication mode of the transmitter is the first communication mode, the data analysis module calculates the path loss PL of the millimeter-wave signal, and sets

[0068]

[0069] where c represents the speed of light, f represents the frequency of the millimeter-wave signal, and D represents the distance between the transmitter and the receiver.

[0070] Specifically, when the communication mode of the transmitter is the first communication mode, the data analysis module determines the comprehensive adjustment coefficient Ki of the preset code rate B0 and the first preset difference ΔD0 according to the comparison result between the path loss PL and the preset path loss to adjust the preset code rate B0 and the first preset difference ΔD0. The data analysis module is provided with a first preset path loss PL1, a second preset path loss PL2, a first adjustment coefficient K1, a second adjustment coefficient K2, and a third adjustment coefficient K3, where;

[0071] If PL ≤ PL1, the data analysis module determines to adjust the preset code rate B0 and the first preset difference ΔD0 with the first adjustment coefficient K1;

[0072] If PL1 < PL ≤ PL2, the data analysis module determines to adjust the preset code rate B0 and the first preset difference ΔD0 with the second adjustment coefficient K2;

[0073] If PL > PL1, the data analysis module determines to adjust the preset code rate B0 and the first preset difference ΔD0 with the third adjustment coefficient K3;

[0074] The adjusted preset code rate B1 = B0 × Ki, i = 1, 2, 3, and the adjusted first preset difference ΔD1 = ΔD0 × Ki, i = 1, 2, 3.

[0075] In the embodiment of the present invention, the first adjustment coefficient K1 takes a value of 1.1; the second adjustment coefficient K2 takes a value of 1.2; the third adjustment coefficient K3 takes a value of 1.3, the first preset path loss PL1 takes a value of 70 dB, and the second preset path loss PL2 takes a value of 90 dB. Those skilled in the art can adjust the preset path loss and the adjustment coefficient according to specific situations.

[0076] Specifically, the present invention dynamically adjusts the preset code rate and the preset difference according to the path loss, improves the data transmission rate while ensuring communication reliability, thereby improving communication efficiency. By reducing the preset code rate and the preset difference in the case of a large path loss, the communication reliability can be maintained. The preset code rate and the preset difference are flexibly adjusted according to the path loss, and these two parameters are flexibly adjusted according to the actual communication environment requirements, so as to achieve more stable communication performance.

[0077] Specifically, in the case where the communication mode of the transmitting end is the second communication mode, the data analysis module determines the number of array elements of the sub-array of the antenna matrix according to the comparison result between the packet loss rate L and the preset loss rate L0;

[0078] If L ≤ L0, the data analysis module determines that the number of array elements of the sub-array of the antenna matrix is the first number;

[0079] If L > L0, the data analysis module determines that the number of array elements of the sub-array of the antenna matrix is the second number;

[0080] In the embodiment of the present invention, the first number takes a value of 3×3, the second number takes a value of 5×5, and the preset loss rate L0 takes a value of 0.6. Those skilled in the art can adjust the first number, the second number, and the preset loss rate according to specific situations.

[0081] Specifically, the present invention improves the communication reliability by using sub-arrays of antenna matrices with different numbers of array elements to flexibly adjust the coverage range of millimeter-wave signals.

[0082] Specifically, in the case where the communication mode of the transmitting end is the second communication mode, the data analysis module calculates the second difference ΔL between the packet loss rate L and the preset loss rate L0, and determines the transmitting end power according to the comparison result between the second difference ΔL and the second preset difference ΔL0, and sets ΔL = L - L0;

[0083] If △L ≤ △L0, the data analysis module determines that the transmitting end power is the first power;

[0084] If △L > △L0, the data analysis module determines that the transmitting end power is the second power;

[0085] In the embodiment of the present invention, the value of the first power is 10 milliwatts, the value of the second power is 20 milliwatts, and the value of the second preset difference △L0 is 0.1. Those skilled in the art can adjust the power and the second difference △L according to specific situations.

[0086] Specifically, in the present invention, when the difference between the data packet loss rate and the preset loss rate is less than the preset difference, the communication quality is good. At this time, the transmitting end power is set to the lower first power. When the difference between the data packet loss rate and the preset loss rate is greater than the preset difference, the communication quality is poor. The transmitting power is increased to improve the communication quality. The transmitting power is dynamically adjusted according to the real-time situation of the communication quality to save energy consumption and ensure the communication quality.

[0087] Specifically, the data analysis module calculates the link system margin SFM through the following formula;

[0088] SFM = RSS - Rs

[0089] RSS = Pt + Gr + Gt - Lc - Lbf

[0090] Lbf = 32.5 + 20lgF + 20lgD

[0091] Wherein, RSS represents the received signal strength, Rs represents the device receiving sensitivity, Lbf represents the free space loss, Pt represents the transmitting power, Gr represents the receiving antenna gain, Gt represents the transmitting antenna gain, Lc represents the attenuation of the cable and the cable head, D represents the distance between the transmitting end and the receiving end, and F represents the frequency of the millimeter wave signal.

[0092] Specifically, the data analysis module determines the modulation method of the millimeter wave signal according to the comparison result between the link system margin SFM and the preset link system margin SFM0;

[0093] If SFM ≤ SFM0, the data analysis module determines that the modulation method of the millimeter wave signal is the first modulation method;

[0094] If SFM > SFM0, the data analysis module determines that the modulation method of the millimeter wave signal is the second modulation method;

[0095] Wherein, the first modulation method is QPSK (Quadrature Phase Shift Keying), and the second modulation method is 256 - QAM (Quadrature Amplitude Modulation).

[0096] In an embodiment of the present invention, the preset link system margin SFM0 is set to 20 dB, and those skilled in the art can adjust the preset link system margin SFM0 according to specific circumstances.

[0097] Specifically, in the present invention, when the link system margin is less than or equal to the preset margin, the first modulation method is selected, which is a relatively stable but low-spectrum-efficiency modulation method. When the link system margin is greater than the preset margin, the second modulation method is selected, which is a high-spectrum-efficiency but more noise-interference-susceptible modulation method. Different modulation methods are selected according to the real-time situation of the link capacity, maximizing the spectrum efficiency while ensuring the stable operation of the system.

[0098] Specifically, the data analysis module calculates the relative difference △SFM between the link system margin SFM and the preset link system margin SFM0, and determines the coding method of the information according to the comparison result between the relative difference △SFM and the preset relative difference △SFM0. Set △SFM = (SFM - SFM0) / ((SFM + SFM0) × 0.5);

[0099] If △SFM ≤ △SFM0, the data analysis module determines that the coding method of the information is the first coding method;

[0100] If △SFM > △SFM0, the data analysis module determines that the coding method of the information is the second coding method;

[0101] Among them, the first coding method is convolutional coding, and the second coding method is Turbo coding.

[0102] In an embodiment of the present invention, the relative difference △SFM is set to 3 dB, and those skilled in the art can adjust the relative difference △SFM according to specific circumstances.

[0103] Specifically, the present invention adjusts the system parameters in real time according to the changes in the transmission environment and link quality, adopts a more suitable coding method, realizes the dynamic balance between throughput and reliability, and thus improves the overall performance of the system.

[0104] According to the communication method of the signal communication terminal system, including

[0105] Step S1, the transmitting end transmits a detection signal, and the data analysis module determines several communication methods of the transmitting end according to whether the feedback signal is received by the transmitting end;

[0106] Step S2, the data analysis module determines several frequency selection methods of the millimeter-wave signal according to the comparison result between the distance between the transmitting end and the receiving end and the distance standard;

[0107] Step S3, the data analysis module determines several frequencies of the millimeter-wave signal according to the comparison result between the code rate of the video data in the data stream to be transmitted and the preset code rate. The data analysis module calculates the first difference between the distance between the transmitter and the receiver and the distance standard, and determines several frequencies of the millimeter-wave signal according to the comparison result between the first difference and the first preset difference;

[0108] Step S4, the data analysis module determines several adjustment coefficients of the preset code rate and the first preset difference according to the comparison result between the path loss and the preset path loss to adjust the preset code rate and the first preset difference;

[0109] Step S5, the data analysis module determines several element numbers of the sub-array of the antenna matrix according to the comparison result between the packet loss rate and the preset loss rate;

[0110] Step S6, the data analysis module calculates the second difference between the packet loss rate and the preset loss rate, and determines several transmitter powers according to the comparison result between the second difference and the second preset difference;

[0111] Step S7, the data analysis module determines several modulation modes of the millimeter-wave signal according to the comparison result between the link system margin and the preset link system margin;

[0112] Step S8, the data analysis module calculates the relative difference between the link system margin and the preset link system margin, and determines several coding modes of the information according to the comparison result between the relative difference and the preset relative difference;

[0113] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

[0114] The above are only the preferred embodiments of the present invention and are not used to limit the present invention; for those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A signal communication terminal system, characterized in that, Including: A transmitting end, including an antenna matrix for transmitting millimeter-wave signals, a radio-frequency module for up-converting a baseband signal to the millimeter-wave frequency band, a baseband processing module for modulating and encoding a data stream, a data analysis module for determining a communication mode, and a control module for controlling a communication process according to the analysis result of the data analysis module; A receiving end, for receiving the millimeter-wave signals transmitted by the transmitting end and returning a feedback signal to the transmitting end after receiving the millimeter-wave signals transmitted by the transmitting end; Wherein, the data analysis module determines the communication mode of the transmitting end according to whether the transmitting end receives a feedback signal, determines the frequency selection mode of the millimeter-wave signal according to the distance between the transmitting end and the receiving end, determines the number of elements of a sub-array of the antenna matrix according to the packet loss rate, determines the modulation mode of the millimeter-wave signal according to the link system margin, and determines the coding mode of information according to the relative difference; If the transmitting end receives a feedback signal, the data analysis module determines that the communication mode of the transmitting end is the first communication mode; If the transmitting end does not receive a feedback signal, the data analysis module determines that the communication mode of the transmitting end is the second communication mode; When the communication mode of the transmitting end is the first communication mode, the data analysis module determines the frequency selection mode of the millimeter-wave signal according to the comparison result between the distance D between the transmitting end and the receiving end and the distance standard D0; If D ≤ D0, the data analysis module determines that the frequency selection mode of the millimeter-wave signal is the first frequency selection mode; If D > D0, the data analysis module determines that the frequency selection mode of the millimeter-wave signal is the second frequency selection mode; When the communication mode of the transmitting end is the second communication mode, the data analysis module determines the number of elements of the sub-array of the antenna matrix according to the comparison result between the packet loss rate L and the preset loss rate L0; If L ≤ L0, the data analysis module determines that the number of elements of the sub-array of the antenna matrix is the first number; If L > L0, the data analysis module determines that the number of elements of the sub-array of the antenna matrix is the second number; The data analysis module determines several communication modes of the transmitting end according to whether the transmitting end receives a feedback signal. The communication modes include a first communication mode of communicating through an antenna matrix with the maximum number of elements and a second communication mode of communicating through a sub-array of the antenna matrix and determining the number of elements of the sub-array according to the feedback signal.

2. The signal communication terminal system according to claim 1, characterized in that, When the communication mode of the transmitting end is the first communication mode, the data analysis module determines several frequency selection modes of the millimeter-wave signal according to the comparison result between the distance between the transmitting end and the receiving end and the distance standard. The frequency selection modes include a first frequency selection mode in which the data analysis module determines the frequency of the millimeter-wave signal according to the code rate of video data in the data stream to be transmitted, and a second frequency selection mode in which the data analysis module calculates a first difference between the distance between the transmitting end and the receiving end and the distance standard and determines the frequency of the millimeter-wave signal according to the first difference.

3. The signal communication terminal system according to claim 2, characterized in that, When the frequency selection method of the millimeter-wave signal by the data analysis module is the first frequency selection method, several frequencies of the millimeter-wave signal are determined according to the comparison result between the code rate of the video data in the data stream to be transmitted and the preset code rate; when the frequency selection method of the millimeter-wave signal by the data analysis module is the second frequency selection method, the first difference between the distance between the transmitting end and the receiving end and the distance standard is calculated, and several frequencies of the millimeter-wave signal are determined according to the comparison result between the first difference and the first preset difference.

4. The signal communication terminal system according to claim 3, characterized in that, When the communication mode of the transmitting end by the data analysis module is the first communication mode, several adjustment coefficients of the preset code rate and the first preset difference are determined according to the comparison result between the path loss and the preset path loss to adjust the preset code rate and the first preset difference.

5. The signal communication terminal system according to claim 4, characterized in that, When the communication mode of the transmitting end by the data analysis module is the second communication mode, the second difference between the packet loss rate and the preset loss rate is calculated, and several transmitting end powers are determined according to the comparison result between the second difference and the second preset difference.

6. The signal communication terminal system according to claim 5, characterized in that, The data analysis module determines several modulation modes of the millimeter-wave signal according to the comparison result between the link system margin and the preset link system margin, and the modulation modes include the first modulation mode of QPSK (Quadrature Phase Shift Keying) and the second modulation mode of 256-QAM (Quadrature Amplitude Modulation).

7. The signal communication terminal system according to claim 6, characterized in that, The data analysis module calculates the relative difference between the link system margin and the preset link system margin, and determines several coding modes of the information according to the comparison result between the relative difference and the preset relative difference, and the several coding modes include the first coding mode of convolutional coding and the second coding mode of Turbo coding.

8. A communication method for the signal communication terminal system according to any one of claims 1-7, characterized in that, Including, Step S1: The transmitting end transmits a detection signal. The data analysis module determines that the communication mode of the transmitting end is the first communication mode according to the feedback signal received by the transmitting end, and determines that the communication mode of the transmitting end is the second communication mode if the transmitting end does not receive the feedback signal. Step S2: When the communication mode of the transmitting end is the first communication mode, the data analysis module determines that the frequency selection method of the millimeter-wave signal is the first frequency selection method according to the comparison result that the distance between the transmitting end and the receiving end is less than or equal to the distance standard, and determines that the frequency selection method of the millimeter-wave signal is the second frequency selection method according to the comparison result that the distance between the transmitting end and the receiving end is greater than the distance standard. Step S3: When the frequency selection method of the millimeter-wave signal by the data analysis module is the first frequency selection method, several frequencies of the millimeter-wave signal are determined according to the comparison result between the code rate of the video data in the data stream to be transmitted and the preset code rate. When the frequency selection method of the millimeter-wave signal by the data analysis module is the second frequency selection method, the first difference between the distance between the transmitting end and the receiving end and the distance standard is calculated, and several frequencies of the millimeter-wave signal are determined according to the comparison result between the first difference and the first preset difference. Step S4, when the communication mode of the transmitting end is the first communication mode, the data analysis module determines a number of adjustment coefficients of the preset code rate and the first preset difference according to the comparison result between the path loss and the preset path loss to adjust the preset code rate and the first preset difference; Step S5, when the communication mode of the transmitting end is the second communication mode, the data analysis module determines that the number of array elements of the sub-array of the antenna matrix is the first number according to the comparison result that the data packet loss rate is less than or equal to the preset loss rate, and determines that the number of array elements of the sub-array of the antenna matrix is the second number according to the comparison result that the data packet loss rate is greater than the preset loss rate; Step S6, when the communication mode of the transmitting end is the second communication mode, the data analysis module calculates the second difference between the data packet loss rate and the preset loss rate, and determines a number of transmitting end powers according to the comparison result between the second difference and the second preset difference; Step S7, the data analysis module determines a number of modulation modes of the millimeter wave signal according to the comparison result between the link system margin and the preset link system margin; Step S8, the data analysis module calculates the relative difference between the link system margin and the preset link system margin, and determines a number of coding modes of the information according to the comparison result between the relative difference and the preset relative difference.

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