Modulated-Carrier Systems TRIZ Cases
- Online Spur Detection in Wireless UE Using High Pass Filter
A user equipment detects spurs by comparing channel noise power against neighbor tones, enabling real-time mitigation without increasing processing complexity.
- Carrier Frequency Estimation via Symbol Rate for LPD Receivers
Indirectly estimates carrier frequency errors using symbol rate measurements to enable longer coherent integration times at low signal-to-noise ratios.
- MU Short Feedback Response in Wireless Communications
Wireless devices transmit trigger frames to coordinate simultaneous feedback responses within orthogonal frequency division multiple access resource units.
- VUTP Hybrid Network Integrating Security and IT Systems
Hybrid VUTP network resolves signal degradation over twisted pair wires by dynamically allocating spectrum across optical and electrical links.
- Terminal Reference Signal Cyclic Shift Randomization
A terminal device determines a pseudo-random sequence seed from its attributes to generate unique cyclic shift values for reference signals.
- Uplink Demodulation Using Historical Frequency Offset
A base station demodulates uplink signals using a prerecorded frequency offset value from previous transmissions.
- Reference Signal Density Adaptation for LTE Channel Estimation
Dynamic reference signal configuration adjusts density and periodicity based on user equipment feedback to optimize channel estimation performance.
- Waveform Switching Mechanism for Digital MMWAVE Repeaters
A repeater node executes dynamic waveform switching between OFDM and single carrier signals to adapt link conditions.
- 5G Slice Controller Predictive CSI Scheduling
Predictive propagation models forecast channel conditions to optimize spectrum utilization and maximize network throughput in dynamic 5G environments.
- Digital Signal Processor for Automated Aircraft Cabin HF Testing
A digital signal processor generates broadband noise and service waveforms for automated cabin communication system testing.
- Sidelink Subframe Power Boosting for V2X Spectrum Efficiency
Targeted power boosting in first and last OFDM symbols improves V2X spectrum efficiency while maintaining LTE coexistence.
- 5G Terminal PDCCH Monitoring for High-Frequency Bands
A terminal adjusts control resource set parameters and monitoring intervals to support high-frequency operation.
- GFDM Pilot Signal Design for Interference Reduction
Zadoff-Chu sequences with cyclic shifts reduce inter-subcarrier interference and power penalties in GFDM systems.
- NR-SL Terminal Reference Signal Sequence Generation
A terminal generates reference signal sequences for sidelink communication using base station definitions.
- Galvanic Isolation for Power Semiconductor Control
A serial communication link with galvanic isolation enables full duplex transmission of command and feedback signals between a controller and power electronics module.
- Decoupled Uplink Burst for TDD Latency Reduction
A decoupled common uplink burst transmits sounding reference signals separate from demodulation reference signals in time division duplex subframes.
- Multi-Carrier D2D Control Information for V2X Data Rate
Unified control information coordinates multi-carrier transmission timing and identifiers, resolving single-carrier data rate limitations in V2X scenarios.
- ODVS Codes Embed Clock in DRAM Data
Embedding clock signals in orthogonal differential vector signaling codes resolves DRAM strobe misalignment while maintaining signal integrity.
- Signal Transmission Method for Noise-Resistant Wake-Up
High-pass filtering extracts square wave components while threshold sampling distinguishes valid signals from ambient noise interference.
- CORDIC Scaling for SIMO/MISO Transceiver Multipath Fading
CORDIC circuitry scales outgoing data signals with transmit channel coefficients across multiple spatially diverse antenna elements.
- Integrated Circuit Data Interface with Counter-Based Flow Control
A data transfer system uses a counter to manage buffer memory space and activate enable signals for optimized flow control.
- Link Rate Negotiation for Mixed Auto-Negotiation Capabilities
Devices detect partner capabilities to establish optimal throughput without complex negotiation protocols.
- Fractional Frequency Offset Estimation via Power Threshold Control
A symbol power calculator and comparator determine average DownLink-MAP symbol power to control correlation accumulation for initial fractional frequency offset estimation.
- Receiver FFT Timing for Multi-TRP Wireless Systems
A user equipment determines receiver fast fourier transform timing by detecting first arrival paths from multiple transmission reception points.
- PSSCH Resource Element Determination for V2X Sidelink
A terminal device determines resource elements for a physical sidelink shared channel by analyzing overlapping control channel resources.