Modulated-Carrier Systems TRIZ Cases
- TDD NB-IoT System Information Carrier Allocation
Terminal determines non-anchor carrier location from operation mode information to receive system data, resolving resource constraints in TDD NB-IoT networks.
- Modular Numerical Control Low-Jitter Synchronization
Clock recovery units derive synchronous signals from serial data streams, resolving jitter in synchronization information transmission.
- Phase Noise Pre-Compensation in Wireless Systems
A phase noise management resource applies pre-compensation at the transmitting station to reduce circuitry complexity and processing time across wireless links.
- Single-Wire Clock Recovery via Embedded CPWM Encoding
Embedded clock recovery eliminates complex PLL circuits by using coded-pulse-width-modulation on a single wire.
- Frequency Band Switching via Capability-Exchange Frames
A frequency band change request frame carries device capability information to select an optimal communication setting.
- Frequency Switching in Wireless Links for Seamless Network Handover
Frequency switching and control signal transmission reduce handover duration while maintaining communication continuity across multiple network generations.
- Handover in Heterogeneous Wireless Networks
A handover procedure maintains a user equipment connection with a macro node while switching between low power transmission points.
- Sectored Random Beams for Massive MIMO Channel Estimation
Sectored random beams enable compressive channel estimation in massive MIMO systems while maintaining full backward compatibility with legacy user equipment.
- DFT-s-OFDM Pre-DFT Spreading for Beamforming
Unique pre-DFT-spreading sequences segment aggregated signals into dedicated beams, resolving spectral efficiency deterioration during diverse UE communication.
- Space-Time Channel Encoders for Flexible Antenna Symbol Generation
Segmented space-time channel encoders shift phases to maintain diversity gain while keeping receiving complexity low across varying antenna counts.
- Uplink SRS Transmission via Dynamic Symbol Reconfiguration
Terminal uses second SFI to re-indicate flexible symbols as uplink, resolving PUSCH reassignment conflicts.
- Split DCI Transmission for 5G Signaling Overhead Reduction
Segmenting downlink control information into distinct formats reduces signaling overhead while meeting diverse transmission requirements.
- Multi-Beam Antenna RF System for LTE Base Stations
A multi-beam antenna unit directs signals through a shared RF system using multiplexed frequency channels, reducing device complexity.
- Dynamic E-CCE Allocation for TDD Downlink Control Channels
A base station determines the number of enhanced control channel elements per resource block pair based on subframe type to map downlink control information.
- Carrier Frequency Offset Correction in MIMO Systems
Dual-domain compensation algorithm mitigates intercarrier interference and maintains OFDM orthogonality in mobile MIMO networks.