Multiple Modulation Transmitter/Receiver Arrangements TRIZ Cases
- Multichannel Radio Reception With Overlapping Channel Plans
Overlapping filters and software-defined channel plans let one radio receive multiple modulation schemes in noisy shared spectrum.
- Adaptive Symbol Slicing for Mixed-Modulation Packet Decoding
PCS feedback guides the slicer for mixed-modulation symbols, reducing DBF error propagation and improving receiver decoding reliability.
- Adaptive OFDM-SC Mode Selection for 60 GHz Channel Attenuation
Adaptive switching between OFDM and SC uses delay spread feedback to sustain 60 GHz links while reducing power and circuit complexity.
- Encoded Bit Mapping and Symbol Interleaving for Fading Channels
Encoded bits are distributed across different symbols before interleaving to suppress fading errors with lower complexity in high-speed transmission.
- Dynamic RF Parameter Control for Multi-Radio Interference
Dynamic RF gain, bandwidth, and filtering adjustment helps multi-radio receivers avoid saturation and improve anti-interference performance.
- Frequency Modulation Oscillator Calibration With Periodic Action
Periodic digital calibration keeps frequency accuracy while cutting synthesizer current, heat, and tolerance-driven cost.
- Adaptive Multi-Mode Receiver Selection for Correlated Antennas
Switches among legacy, DARP-I, and MSRD modes using antenna power imbalance and correlation to improve channel quality with lower load.
- Differential Transmitter Circuit for Multi-Standard Signal Matching
A selective enabling circuit reconfigures common-mode and impedance settings so one differential transmitter can support LVDS, LVPECL, and CML.
- GNSS Correlator Reuse for BPSK and BOC Signal Processing
A dual-path GNSS correlator converts BOC signals into BPSK-like inputs, reducing idle hardware while handling both modulation schemes.
- Multi-Mode Wireless Transmitter for High-Rate Payload Modulation
A packet-split modulation scheme keeps spread spectrum for synchronization while sending payload data without spreading to raise throughput to 2 Mbps.
- Relay Signal Remodulation for Low-Cost Wireless Coverage Extension
A relay station remodulates received base-station signals at the same code rate to extend coverage while reducing installation cost and system complexity.
- Wireless Speech Transmission Using Silent-Interval Carrier Switching
Silent-interval carrier switching replaces FSK during speech gaps to meet narrowband spectral masks and reduce adjacent channel interference.
- Multicarrier Bit and Power Loading for Low-Complexity Transmission
Precomputed sub-channel power tables cut feedback and computation while minimizing total transmission power in adaptive multicarrier links.
- Control Channel Format Identification for EUTRA Resource Allocation
Identification information marks the control channel format so mobile stations can decode resource allocation signals with less signaling overhead.
- PHY Reception Mode Control for CCK/OFDM Power Savings
A PHY controller switches among CCK, OFDM, and autodetect modes to avoid repeated modulation detection, cutting power use and improving throughput.
- OTFS CSI-RS Partitioning for Accurate Channel Estimation
Partitioning OTFS and conventional modulation within one resource block improves CSI-RS recovery and channel estimation in high-Doppler wireless links.
- Wireless MCS Table Selection for 256 QAM Throughput Gaps
Adaptive MCS and CQI table selection improves wireless throughput in SNR regions where 256 QAM underperforms despite higher complexity.
- WLAN Resource Unit MCS Segmentation for Higher Spectral Efficiency
Multiple MCS assignments within one WLAN resource unit improve spectral efficiency by matching subcarrier groups to local channel conditions.
- PPE Threshold Signaling for 320 MHz Wi‑Fi and 4096‑QAM
PPE threshold fields add 4096-QAM, larger RU sizes, and longer processing time to support reliable 320 MHz Wi-Fi transmission.
- PPDU Modulation Signaling for Non-Uniform Spatial Streams
Using compact PPDU indication fields, this case shows how WLAN links signal non-uniform spatial-stream modulation with lower bit overhead.
- Constellation Phase Rotation for Physical-Layer Signal Security
Phase rotation tied to legitimate channel information encrypts constellation points so authorized receivers can decode while eavesdroppers cannot.
- Uplink Channel Waveform Selection for Efficient UE Multiplexing
Different uplink channels use OFDM, SC-FDM, or DFT-s-OFDM to improve multiplexing efficiency and transmitter-receiver reuse.
- Packet Padding Threshold Signaling for RU and Stream Overhead
A bitmask-based packet extension threshold field signals only relevant RU and stream padding values, cutting PHY overhead and simplifying selection.
- Wi-Fi PPE Signaling for 4096-QAM at 320 MHz Bandwidth
Extending PPE threshold signaling to carry 4096-QAM, larger RU sizes, and more spatial streams supports reliable Wi-Fi transmission at 320 MHz.
- PPDU Modulation Signaling for Multi-Stream Bit Overhead Control
Uses grouped modulation sets and constrained bit differences to signal non-uniform spatial streams with lower overhead and stable throughput.