OLT Virtualization via Line Card Resource Slicing

The patent segments the OLT device resources by introducing the concept of 'slices' that divide the physical device into multiple virtual OLT systems. Each slice is assigned specific hardware and software resources, enabling independent operation while sharing the underlying physical infrastructure. This segmentation allows multiple virtual OLT systems to coexist on a single physical device, improving resource utilization while maintaining isolation between different service instances.

The patent makes the single physical OLT device universal by enabling it to serve multiple functions simultaneously through virtualization. The device can host multiple virtual OLT systems, each serving different user requirements and service types, while sharing common hardware resources. This multi-functionality transforms a single-purpose device into a platform that can accommodate diverse services including PON, Ethernet, and other access types.

The patent implements a nested structure where virtual OLT systems are embedded within the physical OLT device infrastructure. Each virtual OLT system (slice) is contained within the broader physical device, sharing common hardware resources while maintaining logical independence. This nesting allows the physical device to accommodate multiple virtual instances, each capable of serving user groups with different requirements, thereby increasing both the number of users served and the adaptability to different service types.

The patent adds a virtualization dimension to the traditional single-layer OLT architecture. By introducing the slice concept, it creates a new dimensional layer between the physical hardware and service delivery, allowing multiple virtual OLT systems to operate simultaneously on the same physical infrastructure. This dimensional change enables the device to handle thousands of users with diverse requirements while supporting multiple isolated virtual OLT systems.