Modulated-Carrier Systems TRIZ Cases

IQ demodulation separates digital data from multiple transponders using orthogonal signals, preventing signal collisions during simultaneous communication.

Redefining SRS transmission periods in LTE TDD systems aligns formats with LTE FDD, resolving discontinuous uplink sub-frame constraints.

A software-implemented FSK modem within a microcontroller eliminates separate hardware modems and reduces isolation barrier requirements.

Segmenting a wideband waveform across multiple channels distributes signal energy to improve anti-jamming performance while maintaining transmission capacity.

Minimizes multiple access interference variability by distributing signals uniformly across terminals using dynamic, periodic resource allocation sequences.

A D2D coordinator manages direct device communication channels between user equipment units.

Digital signal processing algorithms determine scan strategies for electronic support measure receivers.

Root-raised cosine filtering shortens EGPRS bursts, reducing cyclic prefix overhead and power consumption while maintaining backward compatibility.

A wireless packet generation method uses a dummy user to allocate additional Long Training Field symbols within existing protocol formats.

Segmenting monitoring into specific slot spans reduces terminal complexity and power consumption in high frequency bands.

Transmitting stations estimate carrier frequency offsets from downlink polling frames and apply corrections before uplink transmission.

A phase matching module estimates distance using signal phases alongside time-of-flight data.

Adaptive pilot pattern assignment reduces radio resource waste by tailoring pilot density to user rank and channel conditions.

Carrier-suppressed optical OFDM generation reduces electronic bandwidth constraints while improving chromatic dispersion tolerance.

A base station adjusts modulation and coding schemes using only negative acknowledgments from mobile stations.

A controller selects a transport block size determination method for PUSCH transmission based on applied scaling.

A wireless system performs channel monitoring to detect coexisting networks and dynamically allocates radio resources based on detected presence.

A base station schedules terminals from two radio systems in a common frequency band using dynamic resource allocation.

Frequency block segmentation aligns CAZAC sequence lengths with bandwidths, reducing inter-cell interference and improving channel estimation.

Lookup tables store pre-calculated phase error values to correct signal shifts without complex real-time calculations.

First user device sends positioning reference signals on physical sidelink channels to enable direct mutual positioning between devices.

A CDMA-CP transmission format inserts a cyclic prefix to facilitate signal combining across sectors.

Simultaneous phase and gain correction eliminates sequential switch devices, reducing correction time and precision uncertainty in direct conversion receivers.

A user equipment estimates frequency offset by reusing Doppler shift data across multiple beams to minimize computational overhead.

Decomposing the channel matrix into a block triangular and unitary product eliminates multi-user interference while enhancing system data rate.

A base station randomizes positioning reference signal frequency offsets and muting patterns to enhance hearability.

A signal processing method adjusts sounding reference signal transmission frequency using tracking reference signal data.

Master resource bandwidth configuration reduces switching latency and interference during duplex communications by providing a default active bandwidth.

Direct signal paths on the load board eliminate relay complexity, reducing calibration time while maintaining precise I and Q signal balance.

A band averaging circuit calculates weighted average carrier frequency offset ratios to improve estimation accuracy.

A user equipment determines measurement gap requirements using subcarrier spacing information from target base stations.

A semiconductor device transmits small-amplitude signals using dedicated transmission wirings and a high-impedance reference driver.

Broadcast messages carry indication information to notify user equipment of the true purpose of MBSFN subframes.

Calculating instantaneous frequency weights FIR coefficients to improve broadband cancellation performance outside optimal bands.

Primary and secondary broadcast channel symbols map to center and edge frequency bands within scalable OFDM systems.

A multi-dimensional data permutation scheme combines antenna diversity and constellation bit-mapping to enhance transmission reliability in wireless networks.

Identifier-based interleaving enables grant-free uplink transmission, eliminating scheduling request delays and reducing power consumption.

An OFDM receiver shifts the FFT window start position forward to handle preceding waves.

A control section determines reference signal indices for beam failure recovery using quasi-co-location assumptions.

Aligning CORESET 0 with SSB subcarrier spacing resolves high-frequency bandwidth mismatches and reduces transmission delays.

Dynamic subframe configuration reduces inter-cell interference in flexible duplex systems, improving measurement accuracy and transmission efficiency.

Transmitter UEs determine demodulation reference signal patterns based on allocated sidelink slot formats to optimize spectral efficiency.

Decoupling uplink control information reliability from physical-layer data scheduling reduces signaling overhead while maintaining transmission efficiency.

A sequence generation method adapts candidate sequences to actual system bandwidth.

A non-contact electromagnetic sensor detects modulated signals on process facility cables, enabling safe remote monitoring without physical contact.

Segmenting uplink and downlink symbols with guard periods reduces interference in integrated access and backhaul systems.

A digital circuit evaluates amplitude and phase differences between I and Q channels to generate compensated signals.

Dynamic PTRS density configuration balances phase noise estimation accuracy against resource overhead in DFT-s-OFDM systems.

RX distortion estimators process transmitter signals to generate correction signals for received paths.