Vehicle Communication Gateway Memory Management

The patent pre-organizes memory spaces into multiple regions with different priorities before data transmission occurs. The gateway maintains a structure where memory regions are predetermined and indexed, allowing the space manager to directly access available memory without sequential searching. This preliminary organization of memory spaces enables O(1) time complexity for finding free memory, resolving the latency issue while maintaining reliable memory management.

The patent divides the memory into multiple segmented regions (first memory region, second memory region, etc.) with different priorities and characteristics. Each region can be independently managed and allocated. This segmentation allows the gateway to quickly identify available memory in higher-priority regions without scanning the entire memory space, thus reducing latency while preserving memory management reliability through structured organization.

The patent implements a dynamic memory allocation system where the gateway can adaptively select memory regions based on priority levels and current system state. Instead of rigid FIFO processing, the space manager dynamically identifies available memory in prioritized regions, enabling urgent diagnostic communications to be handled with higher priority. This dynamic approach maintains operational simplicity while significantly improving diagnostic response productivity.

The patent assigns different qualities or priorities to different memory regions (first memory region vs. second memory region). Diagnostic communications can be allocated to high-priority regions with faster access, while less time-sensitive data uses standard regions. This local differentiation of memory quality allows the gateway to maintain simple overall processing logic while achieving fast response times for critical diagnostic operations.

The patent segments memory into multiple distinct regions (first memory region, second memory region, third memory region, etc.), each capable of handling different communication requirements. Each region can be configured with different priorities, access patterns, and allocation strategies. This segmentation enables the gateway to accommodate multiple electronic control units with diverse communication needs while maintaining relatively simple management through the structured space manager that handles each region independently.

The patent creates a universal memory management architecture where the space manager can allocate and manage data frames across multiple memory regions based on varying requirements. The same space manager handles different types of communications (diagnostic, control, data logging) by selecting appropriate memory regions. This multi-functional approach allows a single gateway structure to serve multiple ECU communication requirements without proportionally increasing complexity.