PC5-RRC Soft Buffer Flushing During MAC Reset

The patent segments the soft buffer management by creating separate soft buffer groups for different PC5-RRC connections. When MAC reset is requested for a specific connection, only the corresponding soft buffer group is flushed while other groups remain intact. This allows selective buffer management that maintains data reception continuity for active connections while avoiding unnecessary maintenance overhead for connections undergoing reset.

Instead of flushing all soft buffers during MAC reset (excessive action), the patent implements partial action by flushing only the specific soft buffer group associated with the connection requiring reset. This reduces the maintenance overhead while still ensuring proper buffer management for the affected connection, resolving the contradiction between reliability and energy loss.

The patent divides soft buffers into multiple groups, each associated with a specific PC5-RRC connection. During MAC reset, only the soft buffer group corresponding to the connection being reset is flushed, while other groups remain untouched. This segmented approach achieves complete cleanup of necessary buffers without affecting ongoing transmissions in other connections, resolving the contradiction between cleanup completeness and transmission stability.

The patent applies local quality by making the buffer flushing operation connection-specific rather than system-wide. Each PC5-RRC connection has its own soft buffer group with tailored management policies. When MAC reset is requested, the flushing operation is localized to only the affected connection's buffer group, ensuring complete cleanup where needed while preserving data in buffers related to active transmissions elsewhere in the system.