Code Division Multiplex TRIZ Cases

Mapping demodulation reference signals to unused OFDM symbols resolves the trade-off between channel estimation accuracy and data transmission overhead.

A method estimates orthogonal variable spreading factor codes by dechannelizing signals and calculating normalized power variance of reception symbols.

Differential Zadoff-Chu codes maintain constant amplitude zero-autocorrelation properties to estimate target range using ultrasound signals.

User equipment modifies reference signal sequences using multiple access signature information to differentiate signals.

Pre-distorts I and Q channel amplitudes to maintain constant envelope transmission.

Dynamic Golay sequence length adjustment overcomes 60 GHz signal attenuation, extending radar detection range while preserving data communication bandwidth.

A multi-stage correlator detects partial data packets in radio signals using hierarchical processing stages.

Symbol-based randomization spreads OFDM subcarriers across the frequency domain using Walsh transforms to lower power spectral density.

A terminal initializes a reference signal sequence using panel identification information to support multiple antenna panels.

Multi-stage interference cancellation using orthogonal training signals resolves spectral efficiency losses from self-interference in full-duplex networks.

Distributing traffic across service areas based on radio attenuation optimizes carrier power sharing for enhanced network capacity.