SRS Timing Coordination for Collision-Free Uplink Transmission

The patent segments the subframe into different time regions: the last symbol is reserved for legacy SRS, while other symbols can be allocated to additional SRS. This segmentation allows independent configuration and timing management of different SRS types, resolving the timing ambiguity by clearly defining when each SRS should be transmitted.

The patent introduces dynamic timing adjustment mechanisms where the transmission timing of additional SRS can be flexibly configured based on DCI triggering and UE-specific configurations. This dynamic approach allows the system to adapt timing to avoid collisions with other uplink channels while maintaining the flexibility benefits of additional SRS positions.

The patent implements preliminary collision detection and avoidance mechanisms. Before transmitting additional SRS, the system checks for potential overlaps with other uplink channels using configured timing information. If a collision is detected, the transmission is postponed to a later subframe, ensuring reliable transmission without resource waste.

The patent employs feedback mechanisms where the UE monitors for collisions between additional SRS and other uplink channels. When collisions are detected, the timing configuration is adjusted in subsequent transmissions. This feedback loop continuously optimizes the balance between transmission efficiency and collision avoidance.