Multi-Frequency Code Systems TRIZ Cases
- OFDM Transmitter Signal Processing for OOB Reduction
Transmitter adds zero power padding to OFDM symbols and applies symmetric time domain window function point multiplication to reduce out-of-band energy.
- FFT Sample Reorder Circuit for Dynamic Channelizer
A dynamically reconfigurable FFT sample reorder circuit routes data through crossbars and dual-port memory to optimize channelization throughput.
- AI-Based UE Band Combination Prioritization for Network Configuration
User equipment prioritizes frequency band combinations using artificial intelligence to optimize network configuration.
- Central Controller Offloading Wireless Signal Processing Latency
A central controller offloads wireless signal processing tasks from access points to reduce computational complexity.
- OFDM Signal Extrema Attenuation via Interleaved Peak Vector Correction
Interleaves OFDM source symbols into sub-blocks and applies peak vector correction to attenuate signal extrema.
- Downlink Initial Access Channel Bandwidth Segmentation
A downlink initial access channel segments synchronization and broadcast control data into distinct bandwidths to support flexible user equipment capabilities.
- OFDM Signal PAPR Reduction via Complex Symbol Correction
A transmission device corrects OFDM constellation symbols using complex correction values derived from real-time peak detection.
- PDSCH Starting Position Determination in LTE Terminals
Terminal device determines PDSCH OFDM symbol starting position based on transmission mode and antenna port parameters.
- Frequency Deviation Compensation with Phase Offset Correction
Digital coherent receivers apply phase offset compensation units to correct errors caused by frequency shifting in ultrafast optical communication systems.
- Extended Cell Random Access Preamble Structure Design
A random access preamble structure extends the cyclic prefix length to accommodate maximum round trip delay in cellular systems.
- Frequency Domain Spectral Shaping for Wireless Uplink
Dynamic filter parameters reduce peak-to-average-power ratio while maintaining detection reliability in wireless networks.
- Matrix-Based Spreading for OFDM Subcarriers
Circulant spreading matrices distribute symbols across subcarriers, reducing bit error rates in frequency-selective channels without adding redundancy.
- Uplink Data Resource Assignment SRS Presence Signaling
A network entity incorporates sounding reference signal presence information into uplink data resource assignments for user equipment.
- GI-FMCW Radar Reference Signal Design for Joint Communication-Radar Systems
Guard interval FMCW radar reference signals reduce intersymbol interference in joint communication-radar systems while maintaining communication efficiency.
- PIM Detection Using Time Delay and FFT Analysis
Time delay modules vary reference signal timing to locate passive intermodulation sources within 10 centimeters, reducing maintenance downtime.