OFDM Flexible-Symbol Allocation for Reliable Uplink Transmission

The patent applies preliminary action by pre-configuring flexible symbols with default directions (uplink or downlink) before dynamic traffic demands arise. This preliminary configuration ensures that even if dynamic reconfiguration fails or is delayed, the system maintains a known, interference-free state, thereby preserving reliability while still allowing adaptability through subsequent dynamic adjustments.

The patent implements beforehand cushioning by preparing backup configuration schemes and fallback mechanisms for flexible symbol allocation. When dynamic reconfiguration encounters uncertainties or conflicts, these pre-prepared cushioning measures prevent system failures and interference, ensuring reliable operation while maintaining the ability to adapt to varying traffic conditions.

The patent applies local quality by assigning different directions (uplink or downlink) to different flexible symbols based on their specific configuration and traffic requirements. Each flexible symbol is individually evaluated and assigned a direction that minimizes interference with neighboring symbols and transmissions, thereby reducing harmful interference while maintaining overall system adaptability.

The patent implements preliminary anti-action by proactively identifying and preventing potential interference scenarios before they occur. The system evaluates the intended direction of flexible symbols against the directions of adjacent symbols and scheduled transmissions, and adjusts configurations in advance to prevent interference, thus reducing harmful factors while preserving adaptability.

The patent applies self-service by enabling the communications device to autonomously determine the direction of flexible symbols using pre-configured rules and information from the network, without requiring complex real-time negotiations or additional signaling. The device uses the granted resources indication and pre-agreed configuration parameters to independently resolve symbol directions, thereby reducing device complexity while maintaining adaptability.

The patent implements parameter changes by using simple, well-defined parameters in the grant indication (such as resource allocation fields) to convey the necessary information for determining flexible symbol directions. By changing the representation of configuration information into compact, easily processable parameters, the system reduces the computational complexity at the device side while preserving the ability to adapt to different traffic profiles.