Design method and equipment based on frame structure of broadband multi-mode communication system

Abstract

The present application discloses a design method and device based on a broadband multi-mode communication system frame structure, which relates to the field of communication technology, including obtaining a transmission data packet of the communication system, constructing a subframe based on each data segment, and constructing each subframe into a basic frame structure to generate a new transmission data packet. Among them, the transmission data includes multiple data segments, and the data segment includes multiple data blocks composed of data symbols and multiple identical UW sequences. The subframe includes a frame header sequence, a RATE code, a UW sequence and a data segment, and the frame structure includes a leading sequence and multiple subframes. The present application realizes the design and use of the frame structure of the communication system in a broadband multi-mode state, by processing the data in the transmission data packet in blocks, encrypting and synchronizing the data segment based on the PN sequence, reducing the probability of link interruption, improving the communication reliability during channel transmission, and configuring the frame structure based on the code rate and modulation mode required for different complex environments.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a design method and device based on a broadband multi-mode communication system frame structure. Background Art

[0002] The development of marine communications requires the integration of 6G, software-defined technology, reinforcement learning, deep learning, etc., to build a multi-dimensional integrated network of "air, space, land and sea", and promote the research and application of new marine communication systems with global perception and ubiquitous connection, high bandwidth, low latency, high-speed and reliable data transmission. However, due to the differences in water and air communication media and the influence of the harsh marine environment, when establishing network connections between base stations, airborne nodes (i.e. satellites, aircraft and drones) and underwater sensor nodes, there are problems such as high complexity of sea-air cross-media communication channels and low underwater network transmission efficiency.

[0003] Multipath interference is a common problem currently faced in wireless digital communications. The essence of traditional channel equalization technology is to use the inverse function of the multipath interference channel transfer function to compensate for the signal distortion caused by the multipath channel. This technology can achieve good anti-interference effect when the multipath interference in the channel is not serious, and the calculation is simple and easy to implement. However, due to the dependence of this technology on the channel transfer function, it is more sensitive to changes in the loudness of multipath interference. When the multipath interference intensity is too large, especially when the signal-to-noise ratio condition is relatively poor, the interference component residual in the channel equalization output waveform will increase sharply, and the system performance will deteriorate seriously.

[0004] Compared with the land environment, a large amount of seawater evaporation makes the atmospheric pressure distribution on the sea surface uneven. Shore-to-ship and ship-to-ship communications are more susceptible to sea surface conditions and atmospheric conditions, such as temperature, humidity, and wind speed. In addition, the height of the shipboard antenna changes rapidly with the waves; at the same time, the fading of the maritime communication channel is particularly sensitive to parameters such as antenna and angle, which may cause frequent link interruptions. Due to these complex factors, the reliability of maritime communications is usually low.

[0005] Therefore, it is necessary to find a design method for the frame structure of a broadband multi-mode communication system suitable for the marine environment, which requires that the frame can be configured with the required code rate and modulation method to adapt to the communication process in a complex environment. Summary of the invention

[0006] The embodiment of the present application solves the problem of link interruption that is prone to occur during the connection process of maritime communication links in the prior art by providing a design method and device based on the frame structure of a broadband multi-mode communication system, thereby improving the communication reliability during channel transmission.

[0007] In a first aspect, an embodiment of the present application provides a design method for a frame structure based on a broadband multi-mode communication system, comprising: obtaining a transmission data packet of the communication system; wherein the transmission data packet includes a PN sequence and multiple data segments, the data segment includes multiple data blocks, the data block includes a data symbol and a UW sequence, the UW sequence of each data block is the same, and the UW sequence is generated based on the PN sequence; constructing a subframe based on each data segment; wherein the subframe includes a RATE code and a UW sequence, and the RATE code is generated based on the PN sequence; constructing each subframe as a basic frame structure to generate a new transmission data packet.

[0008] In combination with the first aspect, in a possible implementation, before obtaining the transmission data packet of the communication system, it includes: determining a sequence set of PN sequences of a receiving end and a transmitting end in the communication system; and determining a PN sequence in the sequence set to insert into the transmission data packet.

[0009] In combination with the first possible implementation method of the first aspect, in a second possible implementation method, the UW sequence is generated based on a PN sequence, including: determining a PN sequence, using it as an input signal, and determining a leading UW sequence based on the requirements of the communication system; performing BPSK modulation on the input signal to obtain an output signal of a first length; extracting phase information of the output signal and constructing a phase sequence of the output signal; filling the leading UW sequence or the phase sequence so that the length of the corresponding leading UW sequence is consistent with that of the phase sequence; applying the filled phase sequence to the carrier signal through a modulator to obtain a UW sequence.

[0010] In combination with the second possible implementation manner of the first aspect, in a third possible implementation manner, after obtaining the UW sequence, the method further includes: adding the UW sequence before each data symbol to perform interval protection and phase correction on the data block.

[0011] In combination with the first possible implementation manner of the first aspect, in a fourth possible implementation manner, after the input signal is BPSK modulated, the method further includes: using a random interleaver to randomly arrange data blocks in each data segment.

[0012] In combination with the first aspect, in a fifth possible implementation manner, the subframes correspond to the data segments one by one and are in the same order.

[0013] In combination with the first aspect, in a sixth possible implementation method, the RATE code is generated based on a PN sequence, including: cyclically shifting the PN sequence to obtain a cyclically shifted sequence of a second length; mapping data symbols to the cyclically shifted sequence to obtain a mapped cyclically shifted sequence; and modulating a carrier signal based on the mapped cyclically shifted sequence to obtain a RATE code.

[0014] In combination with the first aspect, in a seventh possible implementation, the basic frame structure also includes a leading sequence for locating the basic frame structure; the method for generating the leading sequence includes: taking the synchronization code in the transmission data packet as the input signal, performing differential encoding processing on the input signal, and obtaining a differential result; determining a spread spectrum sequence of the transmission data packet, multiplying the differential result bit by bit based on the spread spectrum sequence, and obtaining multiple spread spectrum codes; and sequentially combining multiple spread spectrum codes to obtain the leading sequence.

[0015] In a second aspect, an embodiment of the present application provides a device for executing a design method based on a frame structure of a broadband multi-mode communication system, the device comprising: a processor; a memory for storing processor executable instructions; when the processor executes the executable instructions, it implements the design method as described in the first aspect or any possible implementation method of the first aspect.

[0016] In a third aspect, an embodiment of the present application provides a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium includes a medium for storing a computer program or instructions, which, when executed, enables the design method described in the first aspect or any possible implementation method of the first aspect to be implemented.

[0017] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0018] The embodiment of the present application adopts a technical means of redesigning the structure of the traditional communication system frame, establishing different subframes based on different transmission data packets, and thus constructing a basic frame structure that adapts to the environment, which effectively solves the technical problem that the traditional frame structure is particularly sensitive to parameter changes in other harsh environments such as the ocean and is prone to link interruption due to parameter changes. It further realizes the technical effect of designing and using the frame structure of the communication system based on the broadband multi-mode state to reduce the probability of link interruption, improve the communication reliability during channel transmission, and configure the frame structure based on the code rate and modulation method required by different complex environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A flow chart of a design method for a broadband multi-mode communication system frame structure provided in an embodiment of the present application;

[0021] Figure 2A schematic diagram of the basic frame structure provided for this application;

[0022] Figure 3 A schematic diagram of a specific basic frame structure provided for an embodiment of the present application. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Figure 1 The flowchart of the design method of the frame structure of the broadband multi-mode communication system provided in the embodiment of the present application includes steps 101 to 103.

[0025] Step 101: Acquire a transmission data packet of a communication system; wherein the transmission data packet includes a PN sequence and multiple data segments, the data segments include multiple data blocks, the data blocks include data symbols and UW sequences, the UW sequences of the data blocks are the same, and the UW sequences are generated based on the PN sequence.

[0026] Step 102: construct subframes based on each data segment respectively; wherein the subframes include a RATE code and a UW sequence, and the RATE code is generated based on the PN sequence.

[0027] Step 103: construct each subframe into a basic frame structure to generate a new transmission data packet.

[0028] The embodiments of the present application adopt a technical means of redesigning the structure of the traditional communication system frame, establishing different subframes based on different transmission data packets, and thus constructing a basic frame structure that adapts to the environment. This effectively solves the technical problem that the traditional frame structure is particularly sensitive to parameter changes in other harsh environments such as the ocean, and is prone to link interruption due to parameter changes. This further realizes the design and use of the frame structure of the communication system based on a broadband multi-mode state, so as to reduce the probability of link interruption, improve the communication reliability during channel transmission, and configure the frame structure based on the code rate and modulation method required for different complex environments.

[0029] Although the present application provides method operation steps as described in the embodiments or flowcharts, more or fewer operation steps may be included based on conventional or non-creative labor. The order of steps listed in this embodiment is only one way of executing the order of many steps and does not represent the only execution order. When the actual device or client product is executed, it can be executed in the order of the method shown in this embodiment or the accompanying drawings or in parallel.

[0030] Before obtaining the transmission data packet of the communication system in step S101 mentioned in the embodiment of the present application, it is also necessary to determine the sequence set of PN sequences (English full name: Pseudo-Noise Seqiemce, pseudo-noise sequence) of the receiving end and the transmitting end of the communication system. And determine a PN sequence in the sequence set to insert into the transmission data packet.

[0031] PN sequence, full name of pseudo noise sequence, has some statistical properties similar to random noise, but unlike real random signals, PN sequence is predictable and reproducible. The main purpose of PN sequence is to change the characteristics of the transmission signal, which is used to encrypt or spread the transmission signal.

[0032] The generation methods of PN sequence include long linear feedback shift register, nonlinear feedback shift register, chaotic system, GOLD sequence method, etc., and this application does not make any specific restrictions here.

[0033] Exemplarily, the PN sequence of the present application uses a long linear feedback shift register (LFSR, Linear-Feedback Shift Register) sequence of length m, and the generation method of the PN sequence is as follows:

[0034] 1) Determine the length and generating polynomial of the long linear feedback shift register.

[0035] The length m of the long linear feedback shift register determines the period of the PN sequence, which is 2 m-1 .

[0036] A generator polynomial is a binary number that represents the feedback connection of a long linear feedback shift register. For example, the generator polynomial 1+x4 can be represented as

[10011] . x is a variable in the polynomial, representing each bit in the binary code stream.

[0037] 2) Set the initial state. The initial state of the long linear feedback shift register is an m-bit binary number, which determines the starting point of the PN sequence.

[0038] 3) Iteratively generate PN sequence.

[0039] Starting from the initial state, the last bit of the long linear feedback shift register is output each time, and the state of the long linear feedback shift register is updated according to the generating polynomial. Specifically, the updating method includes: shifting the long linear feedback shift register to the left by one bit, performing a modulo-2 addition operation on certain bits (determined by the generating polynomial) in the long linear feedback shift register, and feeding back the operation result to the rightmost side.

[0040] Repeat the above process until the final length is 2 m-1 PN sequence.

[0041] Figure 3 This is a schematic diagram of a specific basic frame structure provided in the embodiment of the present application. Figure 3 As shown, in the embodiment of the present application, the transmission data packet includes multiple data segments, wherein each data segment includes several data blocks, and the length of the data block is Each data block includes a data symbol and a UW (Unique Word) sequence.

[0042] The total length of the transmitted data packet is calculated by:

[0043] .

[0044] in, Indicates the total length of the transmitted data. Indicates the number of data segments. Indicates the length of the data segment; ,in, Indicates the number of data blocks. Indicates the length of a single data block.

[0045] In the embodiment of the present application, the length of a single data block is calculated by:

[0046] .

[0047] in, Indicates the length of the data symbol, Indicates the length of the UW sequence.

[0048] In the embodiment of the present application, the UW sequence mentioned in step S101 is generated based on the PN sequence, including:

[0049] 1) Determine the PN sequence and determine the pre-UW sequence based on the requirements of the communication system, based on the PN sequence as the input signal.

[0050] 2) Perform BPSK (Binary Phase Shift Keying) modulation on the input signal to obtain an output signal of the first length. Specifically, each bit value (0 or 1) in the PN sequence is used as the input signal, and based on the principle of BPSK modulation, each bit value is converted into a corresponding carrier phase to obtain an output signal.

[0051] 3) Extract the phase information of the output signal and construct the phase sequence of the output signal.

[0052] 4) Convert the binary representation of the preceding UW sequence into a binary phase sequence that is consistent with the length of the phase sequence.

[0053] 5) Apply the binary phase sequence to the carrier signal through the modulator to obtain the UW sequence.

[0054] It should be noted that the length of the UW sequence is consistent with the length of the output signal obtained after BPSK modulation, that is, the first length, which is recorded as .

[0055] Exemplarily, after the UW sequence is obtained, the UW sequence is added before each data symbol to perform interval protection on the data block and is used to perform phase estimation on the data block or perform phase correction on the data block based on the UW sequence.

[0056] BPSK, which refers to binary phase shift keying, is a simple and effective digital modulation method. In BPSK, the phase of the output signal is determined by the bit value. When the bit value is 0, the phase of the output signal is 0°; when the bit value is 1, the phase is 180°. The BPSK modulation method converts the input signal into phase information and then obtains the output signal, thereby realizing data transmission between the input signal and the output signal.

[0057] Exemplarily, after the input signal is BPSK modulated, the method further includes randomly rearranging the data blocks based on a random interleaver.

[0058] Specifically, the data block performs channel coding on the output signal using different code rates, and sends the coded output signal to a random interleaver for whole-frame interleaving, and then modulates to generate a reordered data block.

[0059] The functions of the random interleaver include:

[0060] 1) Improve the anti-interference performance of the output signal: Through the random interleaver, the previously continuous data blocks are no longer continuous during the transmission process, reducing the risk of data loss due to continuous errors.

[0061] 2) Anti-multipath interference: In a multipath transmission environment, the transmission data of different paths arrive at different times. The random interleaver can make it easier for these transmission data to be correctly reassembled at the signal receiving end.

[0062] 3) Anti-Doppler shift: In a mobile communication environment, Doppler shift will cause the frequency of the output signal at the signal transmitter to change. The random interleaver can minimize the impact of this frequency change on data transmission.

[0063] To improve the anti-interference performance of the transmitted signal, a random interleaver is used in the time domain to divide multiple continuous transmission data in the transmission data packet into multiple data segments, and randomly interleave the transmission during the transmission process to improve the anti-multipath interference ability and anti-Doppler frequency shift effect of the transmitted data during the data transmission process, thereby making the signal less susceptible to adverse conditions and improving transmission reliability.

[0064] In the embodiment of the present application, the total length of the subframe is calculated by:

[0065] .

[0066] in, Indicates the total length of the subframe, Indicates the number of subframes, Indicates the length of a single subframe; ,in Indicates the length of the frame header sequence, Indicates the length of the RATE code, represents the length of the UW sequence, Indicates the length of the data segment.

[0067] In the embodiment of the present application, the frame header sequence includes a cyclic prefix and multiple ZC sequences, wherein the length of the cyclic prefix is , the length of the ZC sequence is .

[0068] It should be noted that the subframes correspond to the data segments one by one and are in the same order, that is, the length of each subframe is the same and there is continuity between the subframes.

[0069] The frame header sequence adopts a single-side carrier system to ensure the stability and reliability of signal transmission. The modulation method of the frame header sequence is a multi-phase modulation method, which can improve the channel estimation and channel equalization capabilities of the subframe.

[0070] The RATE code uses a length of The PN sequence is generated by CCSK (Cyclic Code ShiftKeying) cyclic spread spectrum modulation. Its advantage is that different code rates and modulation methods can be selected according to the spread spectrum sequence, making communication on the sea surface more flexible and more spectrum efficient. It is also suitable for a variety of communication scenarios and conditions.

[0071] Specifically, the RATE code is generated as follows:

[0072] 1) Cyclic shifting the PN sequence to obtain a cyclic shifted sequence of a second length. In the embodiment of the present application, the PN sequence is a binary sequence, and the cyclic shifted PN sequence needs to have an excellent periodic autocorrelation characteristic.

[0073] 2) Map the data symbols to the cyclic shift sequence to obtain a mapped cyclic shift sequence.

[0074] 3) Modulate the carrier signal based on the mapped cyclic shift sequence to obtain the RATE code. The modulation process converts the binary value (0 and 1) of the cyclic shift sequence into the corresponding carrier signal phase or amplitude change.

[0075] It should be noted that the length of the RATE code is consistent with the cyclic shift sequence, that is, the second length, which is recorded as .

[0076] CCSK modulation is a modulation technique that uses a combination of carrier signal and subcarrier signal to modulate the PN sequence. In the modulation process of RATE code, CCSK modulation is used to convert the PN sequence into a modulation signal suitable for transmission, namely RATE code. The converted modulated signal has a specific spectrum characteristic, which enables the receiving end of the communication system to distinguish the different code rates of the new transmission data packets.

[0077] It should be noted that the RATE code generates four sets of sequences, each set of sequences corresponds to a different code rate, which is used to select the code rate according to the demand when sending, so as to improve the flexibility and versatility of the communication system. A set of sequences is sent at each code rate to identify the rate of the subframe.

[0078] In an embodiment of the present application, the basic frame structure also includes a leading sequence for positioning the basic frame structure.

[0079] Figure 2 A schematic diagram of the structure of the basic frame structure provided in the present application. In an embodiment of the present application, the total length of the basic frame structure is calculated as follows:

[0080] .

[0081] in, Indicates the total length of the basic frame structure. Indicates the length of the leading sequence, ,in, represents the number of spreading codes in the preamble sequence, Indicates the length of a single spreading code, Indicates the total length of the subframe. Figure 3 As shown, a single spreading code is represented by PN, Figure 3 Medium PN 1 PN 2 …PN S Indicates the serial number of the spreading code.

[0082] In an embodiment of the present application, a method for generating a leading sequence includes:

[0083] 1) Take the synchronization code in the transmission data packet as the input signal, perform differential encoding on the input signal, and obtain the differential result. At this time, the differential result is used to perform timing synchronization, carrier synchronization, and bit synchronization on the data segment.

[0084] 2) Determine the spread spectrum sequence for transmitting data packets, and multiply the differential results bit by bit based on the spread spectrum sequence to obtain multiple spread spectrum codes. The spread spectrum code adopts a single carrier transmission system, and the spread spectrum technology can improve the anti-interference ability and spectrum utilization of the data segment during the communication process.

[0085] 3) Combine multiple spreading codes in sequence to obtain the preamble sequence.

[0086] Exemplarily, the synchronization code is a set of pre-set special codes used to achieve synchronization between the sending end and the receiving end during data transmission.

[0087] Based on the differential coding process, the synchronization code is converted into a differential result. The specific differential coding process and principle include: each current data bit in the synchronization code is determined by the previous data bit. If the current data bit is the same as the previous data bit, the differential code is "0"; if different, the differential code is "1" (or the current data bit is different from the previous data bit, the differential code is "0"; if the same, the differential code is "1"). After obtaining a set of differential codes of the synchronization code after differential coding, arrange them according to the time domain to obtain a set of sequences in the form of coding, which is the differential result. The differential result contains the information in the original synchronization code, but is expressed in the form of differential coding.

[0088] In the process of spreading the differential result, the spread spectrum technology is used. The principle of the spread spectrum technology is to use the spread spectrum sequence to spread the differential result, thereby improving the anti-interference ability and security of the communication system in the process of transmitting data. Specifically, the spread spectrum of the differential result includes:

[0089] Select a spread spectrum sequence. In the embodiment of the present application, a group of pseudo-random codes are selected as the spread spectrum sequence, and the spread spectrum sequence determines the method and performance of signal expansion.

[0090] The differential result is operated with the spread spectrum sequence, and a mathematical operation is performed on the differential result and the selected spread spectrum sequence. In an embodiment of the present application, the original differential result is expanded to a wider frequency band using a bit-by-bit multiplication method so that the differential result can adapt to reliable communication in a maritime communication environment.

[0091] An embodiment of the present application also provides a device for executing a design method based on a broadband multi-mode communication system frame structure, the device comprising: a processor; a memory for storing processor executable instructions; when the processor executes the executable instructions, the design method as described in the embodiment of the present application is implemented.

[0092] The embodiment of the present application also provides a non-volatile computer-readable storage medium, on which a computer program or instruction is stored. When the computer program or instruction is executed, the design method described in the embodiment of the present application is implemented.

[0093] Through the description of the above implementation methods, it can be known that those skilled in the art can clearly understand that the present application can be implemented by means of software plus necessary hardware. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, or can be embodied in the implementation process of data migration.

[0094] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. All or part of this application can be used in many general or special computer system environments or configurations. For example: personal computers, server computers, handheld devices or portable devices, tablet devices, mobile communication terminals, multi-processor systems, microprocessor-based systems, programmable electronic devices, network PCs, minicomputers, mainframe computers, distributed computing environments including any of the above systems or devices, etc.

[0095] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A design method based on a broadband multi-mode communication system frame structure, characterized in that: include: Acquire a transmission data packet of a communication system; wherein the transmission data packet includes a PN sequence and a plurality of data segments, the data segment includes a plurality of data blocks, the data block includes a data symbol and a UW sequence, the UW sequence of each data block is the same, and the UW sequence is generated based on the PN sequence, including: determining the PN sequence, using it as an input signal, and determining a leading UW sequence based on the needs of the communication system; performing BPSK modulation on the input signal to obtain an output signal of a first length, and using a random interleaver to randomly arrange the data blocks in each data segment; extracting phase information of the output signal to construct a phase sequence of the output signal; filling a leading UW sequence or a phase sequence so that the length of the corresponding leading UW sequence is consistent with that of the phase sequence; applying the filled phase sequence to a carrier signal through a modulator to obtain a UW sequence; Constructing a subframe based on each data segment; wherein the subframe includes a RATE code and a UW sequence, and the RATE code is generated based on the PN sequence, including: cyclically shifting the PN sequence to obtain a cyclic shift sequence of a second length; mapping the data symbol to the cyclic shift sequence to obtain a mapped cyclic shift sequence; modulating the carrier signal based on the mapped cyclic shift sequence to obtain the RATE code; Each subframe is constructed as a basic frame structure to generate a new transmission data packet.

2. The design method according to claim 1, characterized in that: Before acquiring the transmission data packet of the communication system, the method includes: Determine a sequence set of PN sequences of a receiving end and a transmitting end in a communication system; A PN sequence is determined in the sequence set and inserted into a transmission data packet.

3. The design method according to claim 1, characterized in that: After obtaining the UW sequence, the method further includes: A UW sequence is added before each data symbol to perform interval protection and phase correction on the data block.

4. The design method according to claim 1, characterized in that: The subframes correspond to the data segments one by one and in the same order.

5. The design method according to claim 1, characterized in that: The basic frame structure also includes a leading sequence for locating the basic frame structure; The method for generating a leading sequence comprises: Taking the synchronization code in the transmission data packet as the input signal, performing differential encoding processing on the input signal to obtain a differential result; Determine a spreading sequence for transmitting a data packet, and multiply the difference result bit by bit based on the spreading sequence to obtain a plurality of spreading codes; Multiple spreading codes are combined in sequence to obtain a preamble sequence.

6. A device for executing a design method based on a broadband multi-mode communication system frame structure, characterized in that: include: processor; a memory for storing processor-executable instructions; When the processor executes the executable instructions, it implements the design method based on the frame structure of the broadband multi-mode communication system as described in any one of claims 1 to 5.

7. A non-volatile computer-readable storage medium, characterized in that: The device comprises a computer program or an instruction for storing the computer program or the instruction. When the computer program or the instruction is executed, the method for designing a frame structure based on a broadband multi-mode communication system as claimed in any one of claims 1 to 5 is implemented.

Images