Polarisation/Directional Diversity TRIZ Cases
- Quasi-Orthogonal Space-Time Block Coding Matrix Design
A quasi-orthogonal space-time block coding system applies a rotation matrix to generate a diagonal Grammian matrix for linear decoding.
- Frequency Hopping Control for Multi-Master Wireless Game Systems
A control section coordinates frequency hopping patterns across multiple wireless communication modules to prevent channel overlap.
- Uplink Control Signaling Multiplexing in DFT-SOFDM Systems
Punctures user data with Layer 1 and Layer 2 control signaling to multiplex both streams, preserving single carrier properties while improving coverage.
- Wireless Channel Estimation Using Dynamic Tracking for Urban Interference
Dynamic channel tracking estimators refine parameters during reception, reducing inter-symbol interference in high delay spread urban environments.
- Multi-Hop UWB Communication Latency Reduction
Ultrawideband multi-hop devices decode and retransmit data during overlapping time periods, reducing communication latency in personal area networks.
- Adaptive VBLAST Receiver Selective Interference Cancellation
An adaptive VBLAST receiver computes log likelihood ratios to selectively cancel interference layers in MIMO signals.
- Multi-port Reference Signals for Beam Pair Selection
User equipment calculates spectral efficiency estimates from two-port reference signals to select optimal beam pairs.
- Multi-Sector Base Station Antenna with Alternating Polarizations
Alternating orthogonal polarizations in multi-sector antennas reduce co-channel interference and increase call handling capacity for airborne cellular networks.
- MIMO Stream Partitioning for Joint Processing Complexity Reduction
Segment MIMO streams into subsets for joint processing, reducing computational complexity while maintaining detection accuracy.
- RF Amplifier Circuit Segmentation for Base-Station Antenna Power
Segmenting a single high-power amplifier into multiple low-voltage units reduces system complexity and resistive losses in base-station antennas.
- Geolocation Signal Receiver Using Wavelet Covariance for Anti-Jamming
A geolocation signal receiver applies wavelet transformations to generate covariance matrices for adaptive weighting of incoming signals.
- User Equipment Polarization Port Selection for Satellite Handover
A user equipment obtains target cell polarization indication to enable only the matching receive port.
- Time-Division Satellite Beam Switching for Interference Avoidance
Sequential amplifier switching implements time-division multiplexing to eliminate inter-beam interference while reducing antenna hardware complexity.
- Satellite Repeater Beam Clustering for Weight Reduction
A satellite repeater clusters multiple beams into frequency groups to reduce analog device count.
- RAKE Receiver SINR Feedback for Interference Suppression
Feedback of maximum SINR-based weight values optimizes RAKE receiver performance by suppressing inter-path interference in WCDMA networks.
- Receiver Synchronization Using Zeroed Frequency Acquisition Sequences
Multiple transmitters send orthogonal acquisition sequences with specific tones zeroed out to enable receiver filtering and synchronization.
- Open-Loop MIMO Polarization Hopping for 5G Interference Reduction
A transmitter sends polarization hopping pattern information to enable signal decoding without channel state feedback.
- STBC-OFDM Self-Channel Interference Elimination in High-Speed Channels
A receiving end processing method estimates channel gain and generates temporary decision symbols to eliminate self-channel interference terms.
- Dynamic Polarization Combining for Antenna Modules
A dynamic polarization combining method adapts antenna element configurations to optimize signal strength across multiple module sides.