Multi-Frequency Code Systems TRIZ Cases
- Uplink Scheduling Mechanism for Wireless Terminal
Terminal apparatus transmits capability parameters indicating support for semi-persistent scheduling and uplink transmission skipping to reduce latency.
- Three Pseudo-Orthogonal Carrier Components for 50% Capacity Increase
Three pseudo-orthogonal carrier components modulate data signals to transmit 3n bits per interval.
- Peak Reduction Tone Allocation for 5G PAPR Control
Segmenting frequency spectra with optimal Golomb ruler-based peak reduction tones to lower PAPR while preserving data integrity and power amplifier efficiency.
- OFDM Edge Band Filtering for Out-of-Band Radiation Reduction
Segmenting OFDM signals allows targeted edge band filtering to reduce out-of-band radiation without increasing device complexity.
- OFDM Modulator Numerology Coexistence via Frequency Segmentation
Segmenting the frequency spectrum into sub-bands maintains orthogonality and prevents interference between different numerologies.
- Signal Power Variation Analysis for Interference Source Location
Iterative signal power measurement estimates interference source location, reducing time loss compared to complex direction finding arrays.
- OTFS Modulation for 5G Mobility and Throughput
Orthogonal time frequency space modulation maps signals to the delay-Doppler domain.
- OFDM Training Sequence Generation via Subcarrier Grouping
Partitioning OFDM subcarriers into groups generates elementary sequences that enhance frequency synchronization accuracy.
- Wireless Preamble Duplication for Backwards Compatibility
Duplicate wireless preambles across frequency bands with distinct puncturing patterns to create redundant signal copies.
- UE Noise Covariance Reporting for Base Station Precoding
User equipment determines noise covariance parameters and reports them to the base station, resolving channel reciprocity limitations in 5G NR systems.
- Filterbank Multi-Carrier Transmission for Coaxial Cable Interference
Individual symbol filtering in a filterbank multi-carrier system reduces inter-carrier interference and eliminates cyclic prefix overhead.
- Constrained Peak Cancellation for OFDM PAPR Reduction
A constrained peak cancellation method reduces the peak-to-average power ratio in OFDM symbols by subtracting optimized pulses from clipping noise samples.
- Serial Division Circuitry for Crest Factor Reduction Scaling
Serial division circuitry calculates scaling factors for crest factor reduction, reducing divider hardware consumption in power amplifiers.
- Coherent Multi-Band Peak Detection Using Phase Information
A coherent peak detection method processes multiple band input signals by combining phase information to accurately identify signal peaks.