Dynamic PTRS Pattern Adaptation for ICI Compensation

The patent applies dynamics by enabling the PTRS pattern to change from one symbol to another based on channel conditions. The system transitions from a static fixed pattern to a dynamic adaptive pattern that adjusts according to instantaneous channel state information, allowing optimal ICI compensation under varying conditions while maintaining manageable complexity through rule-based transitions.

The patent changes the PTRS pattern parameters (such as pattern index, tone spacing, or density) based on channel conditions. By modifying these parameters dynamically rather than using a fixed configuration, the system optimizes ICI compensation performance for different channel environments while maintaining implementation simplicity through parameter-based adaptation.

The patent applies preliminary action by preparing multiple valid PTRS patterns in advance and pre-determining transition rules between patterns. When channel conditions change, the system can quickly switch between pre-prepared patterns without creating tracking errors, as the transitions are planned and controlled rather than reactive and uncontrolled.

The patent uses feedback from channel condition measurements to guide PTRS pattern selection and transitions. By continuously monitoring channel state and adjusting the pattern accordingly, the system maintains phase tracking accuracy while adapting to changing conditions, ensuring that pattern changes are made only when necessary and in a controlled manner that preserves tracking stability.

The patent segments the PTRS configuration into discrete, manageable patterns that can be independently selected and applied to different symbols. Instead of handling continuous variability, the system divides the solution space into predefined pattern options, making the receiver processing simpler as it only needs to identify and apply one of these discrete patterns rather than processing continuous channel variations directly.

The patent applies partial action by using a limited set of predefined PTRS patterns rather than exhaustively considering all possible patterns. This selective approach provides sufficient adaptability to common channel conditions while keeping receiver processing complexity manageable, as the system only needs to handle a subset of patterns rather than all conceivable configurations.