Multi-Frequency Code Systems TRIZ Cases

Dynamic subcarrier spacing adjustment reduces preamble overhead and latency by matching NG-LTFs with data field parameters.

A transmitter switches radio frequency waveforms between CP-OFDM and DFT-s-OFDM to adjust signal characteristics dynamically.

Symbol-based randomization spreads COFDM subcarriers via Walsh transforms, reducing average power while maintaining instantaneous signal-to-noise ratio.

Machine learning pairs data and peak reduction tones to lower the peak-to-average power ratio while maintaining demodulation accuracy in 5G receivers.

A pulse-position-modulated signal generation method uses Fourier series decomposition to produce modulation coefficients for efficient waveform synthesis.

Weighted voting selects TDD configurations per sub-band to minimize interference between GAA and PAL CBSDs.

Blind source separation algorithms determine frequency-dependent gain and phase mismatches in wideband receivers.

A multicarrier-radio transmitter design avoids I/Q modulators in the reverse feedback path to maintain signal linearity.

Concatenating short scrambling sequences generates long codes, resolving interference and hardware complexity limits in dense 5G networks.

Inserting pilot blocks among data pieces improves phase noise compensation accuracy.

A telecommunications method uses a polar constellation with block modulation and controlled phase rotation to reduce peak-to-average power ratio.

A peak suppression device generates a signal with attenuated out-band components to reduce peak-to-average power ratio in wireless transmission systems.

Increasing cyclic prefix duration in 5G NR radio frames reduces inter-symbol interference from multipath propagation while maintaining symbol count.

A wireless device reallocates padding duration within transmission time intervals to include additional symbols and cyclic prefixes.

Predefined PRT sequences on supplementary uplink carriers reduce processing overhead and signaling load while maintaining effective PAPR control.

A reception apparatus calculates OFDM signal correction values using segmented in-phase and out-of-phase pilot signals to enhance demodulation accuracy.

A block-based crest factor reduction method processes multicarrier IQ samples to detect and suppress signal peaks exceeding a power threshold.

Dynamic guard interval length selection reduces inter-symbol interference while maximizing transmission throughput in multi-user environments.

Time domain over-sampling with shaped filtering reduces transmultiplexer complexity while maintaining quasi-orthogonality in GFDM systems.

An irregular mapping structure distributes fading effects across multiple data streams to improve error correction capability in mobile receivers.

A transmission apparatus generates synchronization signals based on PAPR values from a lookup table to enable automatic parameter estimation.

Pulse-position modulation aggregates federated learning updates via non-coherent detection, eliminating channel inversion overhead and reducing PMEPR.

Adjusting guard interval slot portions aligns boundaries with cyclic prefix slots, reducing inter-symbol interference during waveform transitions.

Dynamic preamble formats adapt to time division duplexing constraints, enabling continuous symbol group transmission and accurate timing advance estimation.

A signal analyzer method estimates WCDMA timing offsets using Fast Fourier Transform and fractional delay filters.

Segmenting frequency offset estimation allows synchronization with larger inverse FFT signals while reducing device complexity and energy consumption.

A signal generation device applies time-varying amplitude and phase adjustments to sub-carriers using stored frequency characteristic data.

Orthogonal transformation of useful symbol and guard interval signals enables accurate wide band carrier frequency error detection in OFDM receivers.

Adaptive analog radio frequency signal processing reduces self-interference in full duplex wireless communication systems.

A terminal selects and switches between pre-configured bandwidth parts to manage active radio resources.

Analyzing orthogonal antenna ports with distinct frequency domain orthogonal cover codes to enhance channel synchronization and data transmission efficiency.

A receive end employs Zadoff-Chu synchronization sequences to perform frequency offset estimation.

A terminal apparatus manages higher layer parameters to determine PUSCH frequency hopping intervals based on DCI scheduling.

A terminal reports transmitter switching capabilities to enable network configuration.

Precoding symbols cancel intrinsic interference to achieve full diversity order without code rate loss in FBMC/OQAM systems.

Multiplexed DMRS ports avoid collisions with control signals to balance interpolation performance across PRB pairs in sub-frames.

Correlating cyclic prefixes in OFDM frames estimates frequency offsets to reduce inter-carrier interference from Doppler shifts.

Dynamic port indication via DCI resolves the contradiction between maintaining orthogonality for MU-MIMO and supporting flexible hopping configurations.

A guard period determination method establishes time domain ranges for uplink transmission within downlink slots to enable timely mode switching.

Applying a phase ramp to reference signal sequences achieves circular time shifts through frequency domain processing, eliminating dedicated base station flows.

Communication apparatus inserts zero-value elements into modulated signals and applies pilot signal amplitude coefficients to generate baseband data.

Segmenting carriers into prime and non-prime types eliminates common reference signal overhead to enhance spectral efficiency.

A crest factor reduction device detects peaks in multi-carrier signals and generates cancellation signals to lower peak-to-average power ratio.