A carrier modulation transmission system based on a 5G new waveform

Abstract

The application belongs to the technical field of multiplexing communication in wireless communication, and relates to a carrier modulation transmission system based on a 5G new waveform, which comprises a data stream receiving module, a topology partition arbitration module and a carrier decoupling modulation output module. The data stream receiving module counts the number of data stream rollover and outputs the time sequence characteristic mutual entropy value. The topology partition arbitration module compares the time sequence characteristic mutual entropy value with a dynamic prior judgment threshold to rewrite a non-uniform time-frequency topology addressing mapping table, divides a strong coherent core resource partition and a flow transfer boundary isolation partition, and locks the addressing state in a resting observation window by using an asymmetric state blocking buffer. The carrier decoupling modulation output module asymmetrically routes and modulates output waveform signals of the multiple concurrent data streams according to the addressing mapping table. The application blocks sidelobe interference through feedforward characteristic decoupling, eliminates feedback time delay loss, eliminates bus deadlock through a buffer locking mechanism, and improves the spectrum utilization rate of the transmission system.

Description

Technical Field

[0001] This invention relates to a carrier modulation transmission system based on a new 5G waveform, belonging to the field of multiplexing communication technology in wireless communication. Background Technology

[0002] Currently, in multi-carrier and multiplexed transmission systems, dividing time-frequency resources into multiple parallel subcarrier channels to achieve cascaded modulation and multiplexed shared transmission of multiple concurrent signal streams has become a common choice to improve air interface data transmission throughput and resource utilization. Such schemes rely on the physical orthogonality or sidelobe attenuation characteristics between subcarrier channels to ensure the separation and demodulation of each multiplexed heterogeneous data stream at the receiving end when the propagation environment is relatively stable.

[0003] As networks evolve to higher frequency bands and higher speeds, wireless channels exhibit strong time-varying fading and Doppler shift spread characteristics. The complex physical interweaving of multipath delay spread and sudden Doppler shifts leads to nonlinear distortion of non-orthogonal waveforms during transmission, causing energy mismatch in heterogeneous carriers and co-channel interference within the shared resource pool. Conventional solutions, to maintain demodulation stability, generally rely on receiver feedback of channel state data, compensating for channel fading through a delayed feedback adjustment loop. However, because the channel coherence time under fast multipath fading is shorter than the data return period, the adjustment loop incurs control delays, causing a misalignment between the compensation rule and the transient channel state, resulting in address bus data backlog and system oscillations. To suppress co-channel interference, methods typically involve increasing the subcarrier guard spacing or directly backing down the modulation order. Increasing the guard spacing consumes time-frequency addressing space, while backing down the order reduces multiplexing in burst conditions. The inability to balance spectrum utilization and anti-interference performance leads to limitations in modulation systems. Not only are inherent hardware configurations such as the RF front-end limited in dealing with the above-mentioned operating conditions, but software-level scheduling and control methods also face bottlenecks. For example, Chinese invention patent application CN101742666A discloses a multi-carrier-based resource mapping method that maps physical resource units to logical resource units through two-level permutation operations. However, the premise for this method to work is that the channel environment is stable and the configuration remains static. This is fundamentally mismatched with the actual operating conditions of sudden Doppler spread and drastic time-varying fading during high-speed movement. Due to the lack of active perception of the transient reversal pattern of the signal flow, the static two-level permutation and partition mapping cannot isolate high-collision code streams in real time, resulting in a drop in resource utilization efficiency when facing sudden dynamic code stream bursts, and even causing frequent refreshes and deadlock risks of the address bus under transient electromagnetic jitter.

[0004] Therefore, how to select the transient flip density characteristics of concurrent signal streams to predict conflict intensity, and how to achieve self-healing anti-disturbance control of time-frequency resource pool addressing topology through a discrete event-driven asymmetric blocking mechanism, becomes the technical problem to be solved by this invention. Summary of the Invention To address the problems in the background art, the technical solution of the present invention is as follows: A carrier modulation transmission system based on a new 5G waveform, comprising: The data stream receiving module acquires the set of concurrent bit streams within the data block sliding window, and counts the total number of bit flips per unit time for each channel of the multiple concurrent data streams to construct a transient flip density matrix. It performs an autocorrelation and cross-correlation log-weighted transformation on the transient flip density matrix and outputs the transient time-series characteristic cross-entropy value that quantitatively characterizes the sidelobe conflict density of the co-channel. The topology partitioning arbitration module, connected to the data flow receiving module, compares the transient time-series characteristic cross-entropy value with the dynamic prior judgment threshold spontaneously generated by the system's physical channel coherent time constraint set. When the transient time-series characteristic cross-entropy value is greater than the dynamic prior judgment threshold, it generates an address addressing reconstruction control word. The topology partitioning arbitration module rewrites the non-uniform time-frequency topology addressing mapping table based on the address addressing reconstruction control word, truncates the logical addressing space of the time-frequency resource pool to divide the strongly coherent core resource partition and the flow boundary isolation partition, shrinks the physical addressing interval of the strongly coherent core resource partition and expands the subcarrier isolation protection spacing of the flow boundary isolation partition. The carrier decoupling modulation output module is connected to the data stream receiving module and the topology partition arbitration module respectively. It obtains the non-uniform time-frequency topology addressing mapping table and asymmetrically routes multiple concurrent data streams. It diverts the concurrent data streams with high bit-flip density to the flow boundary isolation partition and aggregates the concurrent data streams with low bit-flip density to the strong coherence core resource partition to output waveform signals.

[0005] Preferably, when the topology partition arbitration module rewrites the non-uniform time-frequency topology addressing mapping table, the topology partition arbitration module is equipped with an asymmetric state blocking buffer. When the transient time-series characteristic cross-entropy value is lower than the dynamic prior judgment threshold, the asymmetric state blocking buffer locks the non-uniform time-frequency topology addressing mapping table and starts a resting observation window with a delay of 12ms. When the transient time-series characteristic cross-entropy value remains lower than the dynamic prior judgment threshold within the 12ms resting observation window, the asymmetric state blocking buffer releases the locked state of the non-uniform time-frequency topology addressing mapping table to restore the initial addressing state.

[0006] Preferably, when the data stream receiving module acquires the set of concurrent bit streams within the data block sliding window, the data stream receiving module is equipped with a feature extraction unit; the feature extraction unit acquires the multiple concurrent data streams input within the data block sliding window, and counts the total number of bit flips of each channel within the multiple concurrent data streams per unit time to construct a transient flip density matrix.

[0007] Preferably, in the environment where the feature extraction unit constructs the transient flip density matrix, the data stream receiving module also includes a matrix operation unit, which is connected to the feature extraction unit; the matrix operation unit aggregates the transient flip density features of each channel to construct a multi-dimensional feature vector, calculates the feature mutual information matrix between any two concurrent data streams to obtain the data association structure; the matrix operation unit performs normalized logarithmic probability weighted summation on the data association structure and outputs the transient temporal feature cross-entropy value.

[0008] Preferably, in the context of the topology partition arbitration module reconstructing the logical addressing space, the topology partition arbitration module also includes an address rewriting unit; when the address rewriting unit receives an address rewriting instruction, it truncates the logical addressing space of the time-frequency resource pool, separates a first virtual physical address range for low-latency services as a strongly coherent core resource partition, and separates a second virtual physical address range for high-throughput services as a flow boundary isolation partition; the address rewriting unit establishes a physical address mapping relationship between the first virtual physical address range and the low bit-flip density concurrent code stream, and establishes a physical address mapping relationship between the second virtual physical address range and the high bit-flip density concurrent code stream.

[0009] Preferably, under the precondition that the addressing rewriting unit truncates the logical addressing space, the topology partition arbitration module further includes a hard decision unit. This hard decision unit is connected to a configuration register, which pre-stores a priori threshold reference with a fixed value. The hard decision unit reads the transient timing feature cross-entropy value with a discrete sampling period as the step size, and compares the transient timing feature cross-entropy value with the priori threshold reference read from the configuration register in real time to complete the dynamic conversion operation. When the transient timing feature cross-entropy value is greater than the priori threshold reference, the hard decision unit generates a high-level status flag and sends an addressing rewriting instruction to the addressing rewriting unit.

[0010] Preferably, in an environment where the cross-entropy value of transient time-series features evolves over time, the system further includes an active trend prediction module, which is connected to both the data flow receiving module and the topology partition arbitration module. The active trend prediction module continuously records the numerical evolution trajectory of the cross-entropy value of transient time-series features within a historical sliding time series to construct a cross-entropy fluctuation dataset that progresses over time. The active trend prediction module calculates the second-order time derivative of the cross-entropy fluctuation dataset to quantify the transient deterioration rate index, which characterizes the potential density of co-channel multiplexing interference. When the transient deterioration rate index continuously exceeds a pre-written deterioration threshold, the active trend prediction module sends a partition locking command to the topology partition arbitration module to stabilize the current non-uniform time-frequency topology addressing mapping table state within a preset range.

[0011] Preferably, under the background of logarithmic probability weighted summation performed by the matrix operation unit, the hard time length of the data block sliding window is maintained between 10ms and 50ms, and the refresh cycle of the configuration register is kept in clock synchronization with the frame structure of the multi-channel concurrent data stream; the data stream receiving module buffers and blocks the multi-channel concurrent data stream in each discrete sampling period, so that the amount of data in the data block participating in the interleaved cross-entropy matrix operation is stabilized at 512 complex symbols.

[0012] Preferably, under the distributed and coordinated scheduling of the entire system, the system is solidified and deployed in the radio frequency and baseband chip architecture of the wireless base station; the data stream receiving module receives the concurrent code stream data output by the baseband processor through the high-speed bus interface, and the carrier decoupling modulation output module is directly connected to the up-conversion power amplifier unit of the radio frequency front end to complete the fully feedforward multiplexed wireless transmission scheduling and transformation output of the transmitter.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. In the carrier modulation transmission of the new 5G waveform, the heterogeneous signal stream receiving module extracts the flip density features of concurrent multi-channel service data streams in bit stream evolution within the data block sliding window. The transient condition number feature extraction unit calculates and outputs the temporal feature cross-entropy value based on the flip density features to characterize the potential density of co-channel sidelobe overlap conflict in real time. The topology partition arbitration module compares and determines the non-uniform time-frequency topology addressing mapping table based on the discrete event-driven comparison between the temporal feature cross-entropy value and the engineering prior threshold, and adjusts the virtual physical address range of the strongly coherent core resource partition and the flow boundary isolation partition, eliminating the system's dependence on signal correlation feedback.

[0014] 2. The topology partition arbitration module is configured with an asymmetric state blocking buffer. When the time-series characteristic cross-entropy value is lower than the engineering prior threshold, it intercepts the virtual space recovery and rewriting action of the physical addressing table, locks the current non-uniform time-frequency topology addressing mapping table state unchanged, and starts a 12ms hard resting observation window. When the time-series characteristic cross-entropy value is continuously lower than the engineering prior threshold within the 12ms observation window, the buffer releases control and allows the addressing table to recover to the initial symmetric addressing state, thereby isolating the addressing system oscillation caused by high-frequency fast-changing conflicts and ensuring the stability of bus data flow.

[0015] 3. The carrier decoupling modulation output module uses a non-uniform time-frequency topology addressing mapping table to asymmetrically route multiple concurrent service data streams to the corresponding channels. It assigns high bit-flip density service data streams to the carrier channels corresponding to the flow boundary isolation partitions to increase the subcarrier logical protection spacing, while aggregating low bit-flip density service data streams to the carrier channels corresponding to the strongly coherent core resource partitions to tighten the addressing space. This asymmetric loading mechanism achieves differentiated addressing based on the timing characteristics of the concurrent code streams at the transmitting end, solving the problem of channel capacity drop in the shared time-frequency resource pool caused by physical interleaving and overlap of subcarriers under high-speed operating conditions. Attached Figure Description

[0016] Figure 1 This is a data processing flowchart of the carrier modulation transmission system of the present invention; Figure 2 This is a diagram showing the module connection structure of the carrier modulation transmission system of the present invention.

[0017] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0019] A carrier modulation transmission system based on a new 5G waveform includes: The data stream receiving module acquires the set of concurrent bit streams within the data block sliding window, and counts the total number of bit flips per unit time for each channel of the multiple concurrent data streams to construct a transient flip density matrix. It performs an autocorrelation and cross-correlation log-weighted transformation on the transient flip density matrix and outputs the transient time-series characteristic cross-entropy value that quantitatively characterizes the sidelobe conflict density of the co-channel. The topology partitioning arbitration module, connected to the data flow receiving module, compares the transient time-series characteristic cross-entropy value with the dynamic prior judgment threshold spontaneously generated by the system's physical channel coherent time constraint set. When the transient time-series characteristic cross-entropy value is greater than the dynamic prior judgment threshold, it generates an address addressing reconstruction control word. The topology partitioning arbitration module rewrites the non-uniform time-frequency topology addressing mapping table based on the address addressing reconstruction control word, truncates the logical addressing space of the time-frequency resource pool to divide the strongly coherent core resource partition and the flow boundary isolation partition, shrinks the physical addressing interval of the strongly coherent core resource partition and expands the subcarrier isolation protection spacing of the flow boundary isolation partition. The carrier decoupling modulation output module is connected to the data stream receiving module and the topology partition arbitration module respectively. It obtains the non-uniform time-frequency topology addressing mapping table and asymmetrically routes multiple concurrent data streams. It diverts the concurrent data streams with high bit-flip density to the flow boundary isolation partition and aggregates the concurrent data streams with low bit-flip density to the strong coherence core resource partition to output waveform signals.

[0020] Preferably, when the topology partition arbitration module rewrites the non-uniform time-frequency topology addressing mapping table, the topology partition arbitration module is equipped with an asymmetric state blocking buffer. When the transient time-series characteristic cross-entropy value is lower than the dynamic prior judgment threshold, the asymmetric state blocking buffer locks the non-uniform time-frequency topology addressing mapping table and starts a resting observation window with a delay of 12ms. When the transient time-series characteristic cross-entropy value remains lower than the dynamic prior judgment threshold within the 12ms resting observation window, the asymmetric state blocking buffer releases the locked state of the non-uniform time-frequency topology addressing mapping table to restore the initial addressing state.

[0021] Preferably, when the data stream receiving module acquires the set of concurrent bit streams within the data block sliding window, the data stream receiving module is equipped with a feature extraction unit; the feature extraction unit acquires the multiple concurrent data streams input within the data block sliding window, and counts the total number of bit flips of each channel within the multiple concurrent data streams per unit time to construct a transient flip density matrix.

[0022] Preferably, in the environment where the feature extraction unit constructs the transient flip density matrix, the data stream receiving module also includes a matrix operation unit, which is connected to the feature extraction unit; the matrix operation unit aggregates the transient flip density features of each channel to construct a multi-dimensional feature vector, calculates the feature mutual information matrix between any two concurrent data streams to obtain the data association structure; the matrix operation unit performs normalized logarithmic probability weighted summation on the data association structure and outputs the transient temporal feature cross-entropy value.

[0023] Preferably, in the context of the topology partition arbitration module reconstructing the logical addressing space, the topology partition arbitration module also includes an address rewriting unit; when the address rewriting unit receives an address rewriting instruction, it truncates the logical addressing space of the time-frequency resource pool, separates a first virtual physical address range for low-latency services as a strongly coherent core resource partition, and separates a second virtual physical address range for high-throughput services as a flow boundary isolation partition; the address rewriting unit establishes a physical address mapping relationship between the first virtual physical address range and the low bit-flip density concurrent code stream, and establishes a physical address mapping relationship between the second virtual physical address range and the high bit-flip density concurrent code stream.

[0024] Preferably, under the precondition that the addressing rewriting unit truncates the logical addressing space, the topology partition arbitration module further includes a hard decision unit. This hard decision unit is connected to a configuration register, which pre-stores a priori threshold reference with a fixed value. The hard decision unit reads the transient timing feature cross-entropy value with a discrete sampling period as the step size, and compares the transient timing feature cross-entropy value with the priori threshold reference read from the configuration register in real time to complete the dynamic conversion operation. When the transient timing feature cross-entropy value is greater than the priori threshold reference, the hard decision unit generates a high-level status flag and sends an addressing rewriting instruction to the addressing rewriting unit.

[0025] Preferably, in an environment where the cross-entropy value of transient time-series features evolves over time, the system further includes an active trend prediction module, which is connected to both the data flow receiving module and the topology partition arbitration module. The active trend prediction module continuously records the numerical evolution trajectory of the cross-entropy value of transient time-series features within a historical sliding time series to construct a cross-entropy fluctuation dataset that progresses over time. The active trend prediction module calculates the second-order time derivative of the cross-entropy fluctuation dataset to quantify the transient deterioration rate index, which characterizes the potential density of co-channel multiplexing interference. When the transient deterioration rate index continuously exceeds a pre-written deterioration threshold, the active trend prediction module sends a partition locking command to the topology partition arbitration module to stabilize the current non-uniform time-frequency topology addressing mapping table state within a preset range.

[0026] Preferably, under the background of logarithmic probability weighted summation performed by the matrix operation unit, the hard time length of the data block sliding window is maintained between 10ms and 50ms, and the refresh cycle of the configuration register is kept in clock synchronization with the frame structure of the multi-channel concurrent data stream; the data stream receiving module buffers and blocks the multi-channel concurrent data stream in each discrete sampling period, so that the amount of data in the data block participating in the interleaved cross-entropy matrix operation is stabilized at 512 complex symbols.

[0027] Preferably, under the distributed and coordinated scheduling of the entire system, the system is solidified and deployed in the radio frequency and baseband chip architecture of the wireless base station; the data stream receiving module receives the concurrent code stream data output by the baseband processor through the high-speed bus interface, and the carrier decoupling modulation output module is directly connected to the up-conversion power amplifier unit of the radio frequency front end to complete the fully feedforward multiplexed wireless transmission scheduling and transformation output of the transmitter.

[0028] Example 1: When the system faces the multi-channel communication wireless transmission scenario of a high-speed railway base station with a moving speed of 350km / h, the 5G non-orthogonal new waveform multi-channel concurrent service data streams cascaded modulation and multiplexed transmission within the shared time-frequency resource pool generate common-channel multiplexing interference in the frequency domain due to spectral dispersion caused by Doppler frequency shift and the nonlinear superposition of waveform intrinsic sidelobes. Furthermore, the feedback delay loss exceeding 12ms occurs in the receiver's channel state information return loop due to quantization and transmission losses, causing a phase mismatch between the reference parameters acquired by the transmitter and the transient characteristics of the fast-fading channel. This leads to data backlog and refresh deadlock on the baseband processing bus within the multiplexing system, resulting in a drop in time-frequency resource utilization efficiency. Before inputting the concurrent code stream set, a pre-whitening transformation is performed to adjust the statistical distribution of the input data and eliminate the impact of data content on the transmission channel characteristic analysis. Random interference and pre-whitening transformation are performed by comparing and adding the concurrent bitstream sequence to be transmitted with a pseudo-random interference sequence code composed of polynomials bit by bit through an XOR operation circuit. This evens out the frequency of code pattern mutations at different service datastream content levels, ensuring that the bitstream pattern received by the datastream receiving module presents a uniform distribution. This establishes a neutral input reference and isolates and eliminates the impact of higher-layer source data variations on bit-flip density, allowing subsequent analysis to fully reflect the characteristic changes caused by channel transmission. The datastream receiving module acquires the concurrent bitstream set within a data block sliding window with a time length of 10ms to 50ms, counts the total number of bit flips per unit time for each channel to construct a transient flip density matrix, and calculates the autocorrelation and cross-correlation log-weighted transformation of the transient flip density matrix through the feature extraction unit inside the datastream receiving module, outputting the time-series characteristic cross-entropy value. cross-entropy value of time series features Prior decision thresholds stored in the internal registers of the topology partition arbitration module Overlapping comparisons occurred, among which The cross-entropy value is a transient temporal characteristic used to characterize the co-channel sidelobe collision density. The prior decision threshold is determined by the coherent time constraint set of the system's physical channel. Specifically, the matrix operation unit inside the data stream receiving module takes the flip density feature of each channel in the transient flip density matrix as one dimension and aggregates them to construct a multi-dimensional feature vector; calculates the mutual information value between the feature vectors corresponding to any two concurrent data streams to combine them into a feature mutual information matrix, thereby quantitatively obtaining the data association structure between concurrent data streams through the element size and distribution topology of the matrix; performs a base-2 logarithmic operation on each mutual information feature value in the data association structure to obtain its information entropy logarithmic weight, and multiplies and sums the calculated logarithmic weight values ​​with the corresponding channel joint occurrence probability, and finally performs normalization and scaling processing on the summation result to output a dimensionless pure number that quantitatively represents the co-channel sidelobe conflict density, namely the transient time-series feature mutual entropy value.

[0029] Time-series feature cross-entropy value Greater than the prior decision threshold At that time, the hard decision unit inside the topology partition arbitration module reads the prior decision threshold from the self-configuration register. It compares the current value and outputs a high-level status flag, triggering the address rewriting unit to output the address addressing reconstruction control word, rewriting the non-uniform time-frequency topology addressing mapping table in memory, truncating the logical addressing space of the time-frequency resource pool to divide the strong coherence core resource partition and the flow boundary isolation partition. The address rewriting unit establishes the physical address mapping relationship between the first virtual physical address interval and the low bit-flip density concurrent code stream, and establishes the physical address mapping relationship between the second virtual physical address interval and the high bit-flip density concurrent code stream, shrinking the physical addressing interval of the strong coherence core resource partition and simultaneously expanding the subcarrier isolation protection spacing of the flow boundary isolation partition.

[0030] The carrier decoupling modulation output module is connected to the data stream receiving module and the topology partitioning arbitration module. It reads the non-uniform time-frequency topology addressing mapping table and routes multiple concurrent data streams. High-bit-flip density concurrent data streams are split into carrier channels corresponding to the flow boundary isolation partitions, while low-bit-flip density concurrent data streams are aggregated into the carrier channels corresponding to the strongly coherent core resource partitions to output waveform signals. When the high-frequency code stream causes the time-series characteristic cross-entropy value... Prior determination threshold When high-frequency fluctuations occur, the asymmetric state blocking buffer built into the topology partition arbitration module affects the cross-entropy value of the time-series characteristics. Falling to the prior decision threshold The following intercepts the address table recovery action, maintains the state lock of the non-uniform time-frequency topology address mapping table, and opens a resting observation window with a delay of 12ms, based on the time-series feature cross-entropy value. The value remained below the prior decision threshold for a 12ms resting observation window. At this time, the non-uniform time-frequency topology addressing mapping table is restored to the initial symmetrical addressing state. Before multiple signals are loaded onto the non-orthogonal subcarriers, cross-overlap pollution is eliminated, blocking the linear coupling between the transient electromagnetic jitter of the channel and the baseband addressing table refresh. This offsets the bounce loss of the high-frequency logic rack of the system. The wireless base station multiplexing communication system converts the non-orthogonal sidelobe interference constraint into the topology addressing constraint of the data flow path, so that the high-throughput data flow and the subcarrier logic isolation protection distance correspond in the addressing register structure. Under the condition of maintaining the wireless base station RF front-end hardware configuration unchanged, the multi-path cross-interference of the multiplexing system is reduced, the overall spectrum utilization of the system in the dense multipath wireless environment is improved, and the self-healing anti-interference state of the entire link data flow under the control of the physical addressing table is maintained.

[0031] Example 2: In the simulation of wireless multiplexing communication, the link-level simulation platform reproduces the characteristics of dense multipath fading channels based on the discrete-time signal multiplexing modulation physical model. Doppler frequency shift vectors and Gaussian white noise with a signal-to-noise ratio of 20dB are superimposed on the transmitter baseband signal stream to simulate transient electromagnetic interference around a high-speed railway base station at a speed of 350km / h. An experimental group using a carrier modulation transmission system and a control group using an equidistant orthogonal subcarrier multiplexing allocation architecture are established to determine the time length parameter of the data block sliding window. The boundary of the data block sliding window is identified as a key influencing factor, along with the wireless channel coherence time and the turnaround time of the baseband chip's internal cache. Determining the parameters requires balancing the statistical stability of calculating the cross-entropy value of time-series characteristics with the throughput response delay of dynamically rewriting the multiplexing addressing mapping table. When the burst flip frequency of multi-channel service data streams increases and channel fading intensifies, in order to improve the time resolution for capturing the inflection point of transient multiplexing sidelobe conflict abrupt changes, the parameters... The value of the parameter tends to approach the lower limit of the range, and vice versa, to reduce the bus processing load. This allows the time length parameter of the data block sliding window to be determined based on the coherence time constraint relationship. The working window is 10ms to 50ms, and in the experiment, a lower limit sample group of 10ms, a median sample group of 30ms, an upper limit sample group of 50ms, and out-of-range sample groups of 5ms and 60ms for boundary comparison are set accordingly.

[0032] Under the non-stationary impact state of concurrent multi-channel business data streams exhibiting 450 bit flips per unit time, the data stream receiving module captures the original input data stream and converts it into a transient flip density matrix composed of specific dimensions. The feature extraction unit inside this module calculates a logarithmic weighted transformation on the matrix to output the temporal feature cross-entropy value. cross-entropy value of time series features Prior decision thresholds stored in the internal registers of the topology partition arbitration module Overlapping comparisons occurred, among which The duration of the sliding window. It is a dimensionless pure number used to quantitatively characterize the co-channel sidelobe conflict density. To determine the dimensionless a priori threshold, the coherent time constraint set of the system's physical channels determines its value. In practice, to isomorphically cascade the transient flip density matrix with the orthogonal frequency division multiplexing modulation preamplifier of the baseband chip, the data stream receiving module normalizes and scales the total number of bit flips per unit time for each channel, mapping it to the corresponding discrete amplitude modulation coefficients. Using baseband clock synchronization triggering, each concurrent data stream is divided into independent data blocks within a discrete sampling period. The discrete amplitude modulation coefficients are used as the real part, and the phase factors corresponding to the concurrent data streams are used as the imaginary part, performing complex number mapping and combination. This constructs a standardized operational data block containing 512 complex symbols within each sliding window, which serves as the basic data structure input to the matrix operation unit for interleaved cross-entropy matrix operations. Under the out-of-range condition of 5ms, the operator output experiences severe electromagnetic stray fluctuations due to the excessively small sliding window sample size, resulting in the measured... The irregular discrete jumps between 0.12 and 0.88 caused the topology partition arbitration module to frequently generate high-level status flags, while... In the sample groups of 10ms, 30ms and 50ms respectively, the measured values ​​were... Under normal conditions, the values ​​are stable at 0.45, 0.48, and 0.52 respectively, and during the transient arrival of the burst code stream, they quantitatively step to 0.71, 0.73, and 0.75 respectively. This causes the topology partition arbitration module to generate a deterministic address rewrite instruction, which dynamically widens the subcarrier isolation protection distance between the flow boundary isolation partitions of the non-uniform time-frequency topology addressing mapping table in memory from 12kHz under normal conditions to 36kHz. However, under the out-of-range condition of 60ms, the calculation of the timing characteristic cross-entropy value produces a delay of 15.4ms. This delay exceeds the channel's 12ms coherence time limit, causing the baseband processing bus to encounter subsequent code stream conflicts before the non-uniform time-frequency topology addressing mapping table is refreshed, resulting in register deadlock.

[0033] After the simulation test ran continuously for 24 hours, In the 30ms test group, the multiplexed waveform signal after split modulation by the carrier decoupling modulation output module generated a co-channel multiplexing interference suppression ratio of 28.4dB at the receiving end, and the number of baseband bus data accumulation resets was 0. In contrast, the control group with the same interference environment only generated an interference suppression ratio of 11.3dB and accumulated 14 baseband bus deadlocks. In addition, the data showed that when the window length was shortened to 5ms, the address table rewriting overhead of the system increased nonlinearly with the increase of the false trigger frequency, resulting in deterioration of addressing energy consumption. When the window length exceeded 50ms, the improvement curve of the interference suppression ratio showed a saturation plateau period after 52ms. The above observable performance inflection point data directly established the rationality of the boundary of the 10ms to 50ms numerical working window, thus confirming the anti-interference adaptability of non-uniform time-frequency topology addressing dynamic rewriting and feedforward timing decoupling control in multiplexed communication systems.

[0034] Example 3: This example combines Figures 1 to 2 This paper describes a carrier modulation transmission system based on a new 5G waveform, such as... Figure 1 As shown, the concurrent bitstream set of multiple concurrent data streams is input to the datastream receiving module. The datastream receiving module acquires the concurrent bitstream set, counts the total number of channel bit flips and constructs a transient flip density matrix, and then outputs the transient time-series characteristic cross-entropy value. The transient time-series characteristic cross-entropy value is transmitted to the topology partition arbitration module. The topology partition arbitration module compares the transient time-series characteristic cross-entropy value with the dynamic prior judgment threshold, generates the address addressing reconstruction control word, truncates the time-frequency logic addressing space and divides it into strong coherence and isolation partitions. When the value is below the threshold, the mapping table state is locked by an asymmetric state blocking buffer and a resting observation window is started. Then, the action on the non-uniform time-frequency topology addressing mapping table is restored by locking or releasing the state. When the threshold is exceeded, the addressing reconstruction control word is rewritten and directly applied to the non-uniform time-frequency topology addressing mapping table. The non-uniform time-frequency topology addressing mapping table contains truncated physical addressing intervals and is specifically divided into strongly coherent core resource partitions and flow boundary isolation partitions. Multiple concurrent data streams participate in asymmetric routing and are input to the carrier decoupling modulation output module together with the non-uniform time-frequency topology addressing mapping table. The carrier decoupling modulation output module asymmetricly routes the concurrent data streams according to the non-uniform time-frequency topology addressing mapping table, splits the high bit-flip density to the isolation partition and aggregates the low bit-flip density to the core partition, and outputs the waveform signal from the physical resource partition to finally achieve the modulated output of the waveform signal.

[0035] like Figure 2As shown, the output of the data stream receiving module is connected to the input of the active trend prediction module, the input of the topology partition arbitration module, and the input of the carrier decoupling modulation output module, respectively. The output of the active trend prediction module is connected to the input of the topology partition arbitration module, and the output of the topology partition arbitration module is connected to the input of the carrier decoupling modulation output module.

[0036] Example 4: When the system faces the multi-path multiplexing communication wireless transmission scenario of a high-speed railway base station with a moving speed of 350km / h, the 5G non-orthogonal new waveform multi-path concurrent service data streams cascaded modulation and multiplexing transmission within the shared time-frequency resource pool suffer from spectral dispersion caused by Doppler frequency shift. This results in the temporal characteristic cross-entropy value of the concurrent service data streams collected in real time by the data stream receiving module. This generates non-stationary high-frequency steps, which can be used as a priori threshold for addressing switching. Using fixed values, the topology partitioning arbitration module within the multiplexing system frequently experiences false triggers or decision omissions when facing dynamic multipath fading patterns. This excessive refresh loss of the address table causes logical timing mismatches in the baseband processing bus, leading to addressing blockage and modulation distortion of cascaded multiplexed signals. Specifically, the coherent time constraint set of the system's physical channels is transformed and a dimensionless dynamic prior decision threshold is generated as follows: the baseband processor extracts the maximum Doppler frequency shift of the current wireless channel in real time and calculates the reciprocal of the maximum Doppler frequency shift to obtain a time-dimensional threshold. The transient coherence time of the channel is determined. Next, the fixed addressing refresh cycle of the high-speed bus inside the baseband chip is divided by the transient coherence time of the channel to eliminate the time dimension and obtain a first dimensionless mapping parameter characterizing the clock overhead margin. Simultaneously, the discrete frequencies of bus backlog resets within historical cycles are statistically analyzed and converted into a second dimensionless risk coefficient between 0 and 1. Finally, the first dimensionless mapping parameter and the second dimensionless risk coefficient are weighted and summed, thereby decoupling the time scale constraint and mapping it to a dimensionless value that determines the addressing topology reconstruction, i.e., the dynamic prior decision threshold. The computation platform employs a rigid microcontroller chip with a floating-point arithmetic unit. The baseband bus clock frequency is maintained at 2.0 GHz. When the discrete sampling period starts, the rigid microcontroller chip reads the current maximum Doppler frequency shift of the air interface stored in the channel estimation register, calculates the reciprocal of the frequency shift to determine the channel transient coherence time, and the chip's internal arithmetic logic unit divides the fixed addressing refresh period of the high-speed bus by the channel transient coherence time to eliminate the time dimension and outputs the first parameter value characterizing the clock overhead margin. The bus monitoring counter reads and counts the number of bus voltage resets occurring within the preceding sliding time window in real time. The frequency is normalized and transformed into a second risk coefficient value between 0 and 1. The rigid microcontroller chip calls a preset weighted control word, multiplies and sums the first parameter value and the second risk coefficient value, and outputs a unique threshold value control word. This value is dynamically written into the configuration register connected to the rigid decision unit. The configuration register is dynamically refreshed and stores this time-varying threshold control word with the discrete sampling period step size, serving as the dynamic prior decision threshold Eth for the current period. This enables the chip's underlying state control word to perform real-time closed-loop calculation of multi-dimensional physical constraints. The prior decision threshold is set in the time-frequency resource pool. The range is 0.3 to 0.8. In order to determine the physical working window boundary in a dense interference environment, the influence characteristics of different threshold values ​​on the anti-interference coherent isolation of multiplexed communication are compared. When the prior determination threshold is used... When the value is below 0.40, the topology partition arbitration module frequently refreshes the non-uniform time-frequency topology addressing mapping table due to bitstream fluctuations, generating multiplexing addressing switching bus overhead. Furthermore, when the prior determination threshold... When the value is above 0.60, the boundary delineation between the strongly coherent core resource partition and the flow boundary isolation partition experiences a timing lag, failing to timely divert concurrent data streams with high flip density. This results in residual frequency domain co-channel interference components, while the prior judgment threshold... When the value is set to 0.50, the cross-entropy value of the multiplexing system in terms of time-series characteristics... The narrow addressing table switching delay is obtained during the transition, and 0.50 is determined as the prior decision threshold. Furthermore, the value of the fixed operating point is set to a range of 0.3 to 0.8 for the prior decision threshold and 0.50 for the fixed operating point. The engineering boundary and selection basis are derived from the throughput attenuation inflection point determination in multiple sets of comparative simulation experiments: when the system is under multipath fast fading conditions, the discrete performance test of the multiplexed communication link shows that if the prior decision threshold is reduced to below 0.3, the probability of the addressing mapping table being falsely refreshed due to thermal noise fluctuations exceeds 45%, which leads to an exponential increase in baseband bus control overhead and a decrease in the overall effective throughput of more than 30%. This is the physical lower bound of the parameter. If the prior decision threshold is raised to above 0.8, the system's sensitivity to sudden sidelobe interference will be reduced by more than 70%, making it impossible to truncate the logical addressing space in time. This results in the inability to widen the subcarrier isolation protection spacing of the flow boundary isolation partition, and the direct overflow of co-channel multiplexing interference. This is the physical upper bound of the parameter. In a large number of boundary comparison samples, when the threshold is stably set at 0.50, the bus refresh overhead and anti-interference energy suppression ratio reach the optimal balance. At this time, the measured overall spectrum utilization rate can achieve a net increase of 20% compared with the traditional symmetric addressing architecture, thus establishing the engineering rationality of this fixed operating point value.

[0037] When the topology partitioning arbitration module regulates the transition state of the non-uniform time-frequency topology addressing mapping table, the input terminal receives the time-series characteristic cross-entropy value output by the data stream receiving module. Furthermore, a fixed prior decision threshold is read from the self-configuration register. Hard decision unit for cross-entropy value of temporal features Prior decision threshold A numerical subtraction operation is performed, and a high-level status flag is generated when the difference is greater than zero. The input is the high-level status flag. The processing logic is that the address rewriting unit outputs the address addressing reconstruction control word based on the high-level status flag, truncating the logical addressing space of the global time-frequency resource pool to separate the strongly coherent core resource partition and the flow boundary isolation partition. Finally, a non-uniform time-frequency topology addressing mapping table composed of the corresponding mapping relationship between the first virtual physical address interval and the second virtual physical address interval is output, based on the prior judgment threshold. With the value set to 0.50 and the non-uniform time-frequency topology addressing mapping table updated, the carrier decoupling modulation output module, connected to the data stream receiving module and the topology partition arbitration module, receives the mapping table. It then diverts high-bit-flip-density concurrent data streams to the carrier channels corresponding to the flow boundary isolation partitions, and converges low-bit-flip-density concurrent data streams to the carrier channels corresponding to the strongly coherent core resource partitions. At this point, the asymmetric state blocking buffer operates at the time-series characteristic cross-entropy value. When the value falls below 0.50 Flux, the recovery action of the mapping table is intercepted. Within a 12ms resting observation window in the time domain, the non-uniform split topology remains unchanged until the multipath fading Doppler frequency shift under high-speed rail moving conditions subsides, stabilizing the co-channel multiplexing interference suppression ratio measured at the receiver at 28.4dB. Specifically, the suffix symbols appearing in the aforementioned text represent the dimensionless state fluctuation measurement flag preset within the configuration register, not the flux unit in physics. In the actual control logic, when the time-series characteristic cross-entropy value falls below the dimensionless pure number 0.50, the hard decision unit in the configuration register synchronously clears the corresponding state fluctuation measurement flag. The asymmetric state blocking buffer accurately intercepts the recovery action of the mapping table by detecting the level change of this flag. Thus, a self-consistent flow from the dimensionless calculation result to the chip's underlying state control word is achieved within the internal control context. The system introduces an active trend prediction module to continuously record the time-series characteristic cross-entropy value within the preceding 60ms sliding time series. A cross-entropy fluctuation dataset is constructed, and the first and second time derivatives of this dataset are continuously calculated using a time difference circuit. When the transient degradation rate index of the second time derivative calculation output continuously exceeds the preset degradation threshold, it indicates that the co-channel multiplexing interference is at risk of a step change. The active trend prediction module sends a partition locking command to the topology partition arbitration module. The partition locking command is directly input into the bus arbitration enable register of the topology partition arbitration module. By forcibly setting the write protection control bit of the register to a high level, the erase and write enable terminal of the non-uniform time-frequency topology addressing map table is directly blocked, and the global addressing reconstruction and addressing table refresh actions are suspended. The state remains within the current addressing map table distribution range until the degradation rate index of the second time derivative calculation output falls back below the safe threshold. The topology partition arbitration module clears the write protection control bit to zero and restores the normal dynamic refresh logic. The hardware latching mechanism cuts off the linear coupling between physical interference and bus refresh, protecting the addressing bus from the impact of high-frequency electromagnetic spurious fluctuations.

[0038] The carrier modulation transmission system based on the new 5G waveform transforms the non-orthogonal sidelobe interference conflict constraint of the physical layer wireless channel into a topology addressing constraint for the cascaded flow of the data bus within the multiplexing system. This ensures that the virtual physical address range corresponding to the high-throughput concurrent code stream and the variable guard band spacing remain physically associated in the address register hardware configuration. Under the engineering premise of maintaining the base station wireless RF front-end hardware configuration and antenna scale unchanged, it blocks the cascaded superposition of multiplexed interference signals in the frequency domain in dense multipath wireless environments, and maintains the self-healing anti-interference control flow state of the full-link cascaded data stream within the shared physical resource pool.

[0039] Example 5: When the system faces situations such as antenna replacement or deployment environment change at the communication base station, the thermal noise floor inside the multiplexed communication link shifts, causing the initial cross-entropy of the data stream receiving module to change under no-load conditions. If a fixed threshold is directly used, it will cause addressing misjudgment by the topology partition arbitration module. Before data splitting, the system starts a calibration procedure, controlling the data stream receiving module to acquire a 100ms resting signal stream and calculate the initial time-series characteristic cross-entropy reference value. The hard determination unit is based on the formula. Modify prior decision threshold ,in, This is the calibrated prior decision threshold. The initial cross-entropy baseline value for time-series features. It is a dimensionless engineering constant, referring to the noise floor compensation increment that makes the prior decision threshold... Adaptive alignment with ambient background noise.

[0040] After calibration is completed and the system enables full-path fading service flow transmission, the carrier decoupling modulation output module receives a priori judgment threshold based on the calibration. The non-uniform time-frequency topology addressing mapping table is divided and the data streams are split. High-bit-flip-density concurrent data streams are diverted to the carrier channels corresponding to the flow boundary isolation partitions, while low-bit-flip-density concurrent data streams are aggregated to the carrier channels corresponding to the strongly coherent core resource partitions. Even if external interference occurs in a step, the asymmetric state-blocking buffer can still maintain the time-series characteristic cross-entropy value. During a drop, a 12ms resting observation window is used to maintain the stability of the split topology, so that the multipath interference suppression ratio of the multiplexing system is kept stable at 28.4dB in a dense multipath environment, and the anti-interference modulation state of the entire link data is maintained under the control of the physical addressing table.

[0041] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A carrier modulation transmission system based on a new 5G waveform, characterized in that, include: The data stream receiving module acquires the set of concurrent bit streams within the data block sliding window, and counts the total number of bit flips per unit time for each channel of the multiple concurrent data streams to construct a transient flip density matrix. It performs an autocorrelation and cross-correlation log-weighted transformation on the transient flip density matrix and outputs the transient time-series characteristic cross-entropy value that quantitatively characterizes the sidelobe conflict density of the co-channel. The topology partition arbitration module, connected to the data flow receiving module, compares the transient time-series feature cross-entropy value with the dynamic prior judgment threshold spontaneously generated by the system's physical channel coherent time constraint set. When the transient time-series feature cross-entropy value is greater than the dynamic prior judgment threshold, it generates an address addressing reconstruction control word. The topology partitioning arbitration module rewrites the non-uniform time-frequency topology addressing mapping table based on the address addressing reconstruction control word, truncates the logical addressing space of the time-frequency resource pool to divide the strong coherence core resource partition and the flow boundary isolation partition, shrinks the physical addressing range of the strong coherence core resource partition and expands the subcarrier isolation protection spacing of the flow boundary isolation partition. The carrier decoupling modulation output module is connected to the data stream receiving module and the topology partition arbitration module respectively. It obtains the non-uniform time-frequency topology addressing mapping table and asymmetrically routes multiple concurrent data streams. It diverts the concurrent data streams with high bit-flip density to the flow boundary isolation partition and aggregates the concurrent data streams with low bit-flip density to the strong coherence core resource partition to output waveform signals.

2. The carrier modulation transmission system based on a new 5G waveform according to claim 1, characterized in that, While the topology partition arbitration module rewrites the non-uniform time-frequency topology addressing mapping table, the topology partition arbitration module is equipped with an asymmetric state blocking buffer. When the transient time-series characteristic cross-entropy value is lower than the dynamic prior decision threshold, the asymmetric state blocking buffer locks the non-uniform time-frequency topology addressing mapping table and starts a resting observation window with a delay of 12ms. When the transient time-series characteristic cross-entropy value remains lower than the dynamic prior decision threshold within the 12ms resting observation window, the asymmetric state blocking buffer releases the locked state of the non-uniform time-frequency topology addressing mapping table to restore the initial addressing state.

3. The carrier modulation transmission system based on a new 5G waveform according to claim 1, characterized in that, While the data stream receiving module is acquiring a set of concurrent bit streams within the data block sliding window, the data stream receiving module is equipped with a feature extraction unit. The feature extraction unit acquires multiple concurrent data streams input within the data block sliding window and counts the total number of bit flips in each channel within the multiple concurrent data streams per unit time to construct a transient flip density matrix.

4. A carrier modulation transmission system based on a new 5G waveform according to claim 3, characterized in that, In the context of the transient flip density matrix constructed by the feature extraction unit, the data stream receiving module also includes a matrix operation unit, which is connected to the feature extraction unit. The matrix operation unit aggregates the transient flip density features of each channel to construct a multi-dimensional feature vector, calculates the feature mutual information matrix between any two concurrent data streams to obtain the data association structure, and performs normalized log probabilistic weighted summation on the data association structure to output the transient time series feature cross-entropy value.

5. A carrier modulation transmission system based on a new 5G waveform according to claim 1, characterized in that, In the context of the topology partition arbitration module reconstructing the logical addressing space, the topology partition arbitration module also has an address rewriting unit. When the address rewriting unit receives an address rewriting instruction, it truncates the logical addressing space of the time-frequency resource pool, separates the first virtual physical address range for low-latency services as a strongly coherent core resource partition, and separates the second virtual physical address range for high-throughput services as a flow boundary isolation partition. The address rewriting unit establishes the physical address mapping relationship between the first virtual physical address range and the low bit-flip density concurrent code stream, and establishes the physical address mapping relationship between the second virtual physical address range and the high bit-flip density concurrent code stream.

6. A carrier modulation transmission system based on a new 5G waveform according to claim 5, characterized in that, Under the premise that the addressing rewriting unit truncates the logical addressing space, the topology partition arbitration module also includes a hard decision unit. This hard decision unit is connected to a configuration register, which pre-stores a priori threshold reference with a fixed value. The hard decision unit reads the transient timing feature cross-entropy value with a discrete sampling period as the step size, and compares the transient timing feature cross-entropy value with the priori threshold reference read from the configuration register in real time to complete the dynamic conversion operation. When the transient timing feature cross-entropy value is greater than the priori threshold reference, the hard decision unit generates a high-level status flag and sends an addressing rewriting instruction to the addressing rewriting unit.

7. A carrier modulation transmission system based on a new 5G waveform according to claim 1, characterized in that, In an environment where the cross-entropy value of transient time-series features evolves over time, the system also includes an active trend prediction module, which is connected to the data flow receiving module and the topology partition arbitration module. The active trend prediction module continuously records the numerical evolution trajectory of the cross-entropy value of transient time-series features within the historical sliding time series to construct a cross-entropy fluctuation dataset that progresses over time. The active trend prediction module calculates the second-order time derivative of the cross-entropy fluctuation dataset to quantify the transient deterioration rate index that characterizes the potential density of co-channel multiplexing interference. When the transient deterioration rate index continues to exceed the pre-written deterioration threshold, the active trend prediction module sends a partition locking command to the topology partition arbitration module to stabilize the current non-uniform time-frequency topology addressing mapping table state within a preset range.

8. A carrier modulation transmission system based on a new 5G waveform according to claim 4, characterized in that, In the context of performing logarithmic probability weighted summation in the matrix operation unit, the hard time length of the data block sliding window is maintained between 10ms and 50ms, and the refresh cycle of the configuration register is kept in clock synchronization with the frame structure of the multi-channel concurrent data stream. The data stream receiving module buffers and divides multiple concurrent data streams into blocks within each discrete sampling period, so that the amount of data in the data block participating in the interleaved cross-entropy matrix operation is kept stable at 512 complex symbols.

9. A carrier modulation transmission system based on a new 5G waveform according to claim 1, characterized in that, In the case of distributed and coordinated scheduling across the entire system, the system is solidified and deployed in the radio frequency and baseband chip architecture of the wireless base station; The data stream receiving module receives the concurrent code stream data output by the baseband processor through a high-speed bus interface, and the carrier decoupling modulation output module is directly connected to the upconversion power amplifier unit of the RF front end to complete the fully feedforward multiplexed wireless transmission scheduling and transformation output of the transmitter.

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