SCMA codebooks with fewer projections per complex dimension cut decoding complexity while preserving spectral efficiency and data rates.
Orthogonal binary encoding lets multiple analog channels share one ADC, cutting converter count and power while preserving signal recovery.
Precomputed spread sequences and image-memory lookup cut DSSS/CDMA hardware complexity while supporting multiple signal standards.
Hash-based pilot scrambling combines static and dynamic parameters to cut reverse-link pilot collisions and overhead across sectors.
Reciprocal RF channel sampling lets paired devices create matching spread-spectrum sequences that resist interception and adapt to bandwidth changes.
Spread-spectrum SSDS-CDMA video transport turns pathway errors into benign white noise, preserving fidelity over imperfect vehicle cabling.
Two-dimensional delay and Doppler cyclic shifts expand random access sequence capacity while preserving low correlation under frequency offset.
Selectable flip-flop enable timing lets a GNSS PRN delay generator adapt to clock changes without extra registers, saving silicon area.
SSDS-CDMA spreads analog video so cable-induced errors become benign white noise, preserving image fidelity over legacy imperfect EM pathways.
Configured orthogonal sequence codebooks let modern and legacy UEs share one uplink resource block without payload loss or wasted resources.
Zadoff-Chu and Pseudo-Noise modulation helps broadcasters synchronize receivers and detect services amid high noise and Doppler.
Aperiodic zero-correlation zones remove cyclic prefix and suffix overhead, reducing UWB sensing time while maintaining sensing performance.
SFN-based scrambling changes each radio frame to limit coherent MTC interference.
This NR uplink case uses Gold sequences and π/2-BPSK DMRS generation to lower PAPR and simplify channel estimation.
Sampled signals are permuted, staged, encoded, and reconstructed across multiple pathways to improve long-distance video transmission.
This case shows how complex PN modulation shares receiver resources across bands while reducing harmonics, images, and hardware complexity.
This case partitions transmission resources into code subspaces for low-PAPR signals, flexible multiplexing, and simplified equalization.
A radio transmission apparatus switches Zadoff-Chu sequence lengths based on active bandwidth to reduce processing and memory demands.
Terminal generates preamble and tag sequences using Zadoff-Chu roots, reducing control signaling overhead during small data transmissions in dense IoT networks.
Dynamic non-binary spreading sequences maximize the signal-to-interference-plus-noise ratio, mitigating multipath fading and interference in relay networks.
Generate non-GNSS positioning signals using chipping rates and PN code lengths compatible with existing GNSS receiver hardware.
Time division multiplexing of binary offset carrier signals eliminates cross spectral interference for common power spectral density.
A wireless communication system transmits rotating polarized waves using orthogonal antennas to maintain signal integrity through shielding materials.
Reconfiguring QPSK modulators to produce BPSK signals reduces ASIC development time and cost.
Residue number system arithmetic generates discrete time chaotic samples for coherent spread spectrum communications.
A sequence generation method splits base sequences into equal-size segments and combines cyclically shifted versions to produce short signals with improved correlation properties.
A branched communications network uses spread spectrum codes to aggregate sensor data across hierarchical nodes.
Dynamic non-orthogonal codebooks adapt to changing user counts, resolving resource allocation inefficiencies in NOMA systems.
A vector-based Walsh code sequence generator produces new access sequences every hardware clock cycle to maximize bit sequence requesting efficiency.
Sequence hopping varies bit-level spreading codes per slot to preserve orthogonality and reduce near-far interference in high Doppler wireless channels.
Transmitting data streams with alternating forward and reverse bits enables receiver correlation for frame validation.
Rational parameters determine almost periodic function codes to reduce bit error rates and autocorrelation values in finite code length systems.
Generalized discrete Fourier transforms generate orthogonal spreading codes that eliminate cross-correlation interference in wireless communication systems.
Analytical frequency domain generation of constant amplitude zero autocorrelation sequences bypasses discrete Fourier transform operations.
A data processing method generates pseudo-random sequences in parallel using derived recursive formulas to accelerate scrambling operations.
A radar unit transmits diverse waveforms using pulse-to-pulse variations in ramp direction and phase shift.
A data processing method generates unique signal sequences using parameter groups to support multiple terminal devices.
Embedding a reference signal within interleaved pseudo-noise sequences relaxes strict frequency alignment requirements while maintaining channel throughput.
Complex-valued spreading sequences improve cross-correlation properties in multi-user code division multiple access systems.
Grouping code sequences by cyclic shift reduces cross-correlation during simultaneous transmissions, improving demultiplexing accuracy at the base station.
Cell-specific hopping patterns randomize adjacent cell interference, ensuring zero cross-correlation between ACK and CQI channels.
A base station determines a target root indicator to generate signal sequences that accommodate cyclic shifts from frequency deviation.
Dynamic code allocation manages asymmetrical traffic volumes to reduce power consumption and prevent data collisions.
Dynamic frequency hopping with Walsh spreading reduces peak-to-average power ratio in OFDM systems while maintaining instantaneous SNR.
Quantized M-QAM coefficients reduce bit requirements while minimizing multi-user interference in wireless systems.
Dynamic waveform variation mitigates interference in FMCW radar by varying chirp parameters, improving object discrimination without hardware complexity.
Uses N complex sequences to superimpose data symbols, reducing multi-user interference and reception complexity in overloaded CDMA networks.
A cyclic shift amount set generation method selects unique root sequence numbers to optimize random access preamble reuse.
A selective noise cancellation method discards low-amplitude samples from spread spectrum signals using an adaptable threshold.