Multiplex Code Allocation TRIZ Cases

Combining CDM pilots with cyclic-prefixed TDM pilots improves channel estimation and preserves orthogonality in complex SFN radio environments.

Expanded UWB sequence sets cut inter-user interference in dense scenarios, improving synchronization and ranging across receiver types.

Selected spreading and scrambling sequences preserve π/2 BPSK and π/4 QPSK during RSMA-NOMA transmission for reliable sharing.

Coverage-limited NR uplink control can obscure UCI; OCC-based cyclic shifts help the network recognize PUCCH transmissions beyond two symbols.

This case separates FD-OCC assignments for UL and DL DMRS ports to limit interference as multi-layer capacity increases.

Pseudo-random OCC assignments average CFO interference for more reliable decoding.

A composite CDM/TDM pilot signal uses a cyclic-prefixed TDM sequence to improve channel estimation in dispersive radio channels.

This case randomizes cyclic shifts, comb offsets, and TD-OCC by symbol to improve SRS capacity and limit cross-SRS interference.

Upsampling perfect Gaussian integer sequences resolves channel crosstalk while increasing signal to noise ratio.

A terminal control section applies a frequency domain orthogonal cover code with sequence length greater than two to demodulation reference signals.

Orthogonal cover codes shift phase tracking reference signals across layers to enable independent receiver processing.

A transmission apparatus selects a spreading code based on terminal identification information to embed source identity directly into the signal waveform.

A common phase error reference signal multiplexed with demodulation reference signals using orthogonal cover codes.

Transmitter applies cyclic shift to code regions, enabling concurrent radar operations without interference.

A preamble encoding method prepares compatible sequences for direct sequence spread spectrum and narrowband signals.

A base station allocates distinct CDMA channels to active sectors in a mobile communication system.

A default primary synchronization code simplifies initial cell search procedures in cellular wireless networks.

A terminal multiplies received signals by orthogonal cover code values across multiple resources to measure channel state information reference signals.

A base station selects a Zadoff-Chu sequence group and sets multiple detection windows to correlate random access signals.

Code allocation unit manages Walsh and quasi-orthogonal functional codes in CDMA networks.

A waveform generator applies orthogonal Walsh and pseudorandom noise sequences to data symbols before mapping them to frequency subcarriers.

A user terminal transmits a first reference signal and uplink data using code resources to identify the device without base station grants.

A terminal apparatus determines a time-varying sequence number offset to generate orthogonal reference signals for wireless transmission.

Hierarchical codebook segmentation reduces assignment complexity while enhancing spectral efficiency in non-orthogonal multiple access systems.

A code channel allocation method establishes mapping between estimation windows and codes to identify active channels.

Selecting unused uplink cyclic shifts conveys interference and channel state information, reducing explicit signaling overhead in LTE networks.

Segmenting the frequency band into dedicated and shared types resolves the contradiction between spectrum efficiency and control complexity.

Cell-specific mirroring patterns randomize interference between neighbor cells, reducing resource unit collisions and improving reception quality.

A dynamic code allocating apparatus measures interference signals to optimize signal-to-interference ratios in radar networks.

A base station selects orthogonal code sequences for uplink signals to enable efficient terminal communication.

Link-specific preamble sequences allow receivers to correlate and identify intended packets, reducing interference in multi-hop wireless networks.

A Walsh sequence decoder splits data streams to evaluate correlation functions and distinguish useful signals from noise.

A multiplexing-spread chip sequence generates transmission signals by combining code sequences for spread, combination, and localization.

Assigning distinct initialization factors to antenna ports generates unique reference signal sequences for improved channel estimation.

A pilot code pattern generator produces spreading codes based on base station IDs to identify cells in OFDMA systems.

Radio base station returns response containing mobile station information to verify receipt and prevent collisions.

Terminal device applies orthogonal code division processing to reduce peak-to-average power ratio and lower power consumption.

Bit-level signal processing applies randomization and interleaving to coded data streams in wireless devices.

A configuration system calculates root sequences based on coverage radius to assign unique preamble identifiers.

Varying scrambling codes within TD-CDMA slots mitigates dominant interferer jamming effects and increases interference diversity.

A method selects scrambling codes and timing offsets to minimize cross-correlation between neighboring cells.

A mobile station apparatus generates demodulation reference signal sequences using specific group numbers and parameter information received from a base station.

Symbol-group based spreading schemes generate flexible non-orthogonal sequences from orthogonal sets to support multiple users.

Configuring frequency domain orthogonal cover code sequence lengths increases available antenna port values for wireless transmissions.