Packet Scheduler Cell Transformation Logic
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Solution Overview
Problem
Network devices face challenges in efficiently scheduling packets to accommodate downstream devices operating with cell-based traffic, as existing technologies lack effective mechanisms to compensate for differences in packet and cell formats and traffic rates.
Innovation Solution
A packet scheduler is implemented with nodes that can inherit transformation functions to adjust packet information, allowing for packet-to-cell transformations and compensation for downstream device characteristics, facilitating efficient data unit scheduling across networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If packet scheduling is performed without transformation functions, then scheduling simplicity is maintained, but compatibility with downstream cell-based devices is lost
Solution Approach 1:
The patent introduces transformation functions as intermediary components that convert packet-based scheduling parameters into cell-based parameters. These transformation functions act as mediators between the packet scheduler and downstream cell-based devices, enabling compatibility without requiring fundamental changes to the scheduling architecture. The transformation functions translate packet sizes, rates, and timing information into equivalent cell-based representations.
Solution Approach 2:
The patent applies parameter transformation by changing the representation of scheduling parameters from packet-based units to cell-based units. The transformation functions modify parameters such as packet size, transmission rate, and timing intervals to reflect their equivalents in cell-based traffic. This allows the scheduler to maintain its packet-based operation while outputting parameters compatible with cell-based downstream devices.
2Reliability
If packet-to-cell transformation is implemented, then downstream device compensation is achieved, but processing complexity increases
Solution Approach 1:
The patent implements preliminary transformation by pre-calculating and storing transformation functions that map packet parameters to cell parameters. These transformation relationships are established in advance through analysis of packet-to-cell conversion characteristics, allowing the scheduler to apply pre-computed transformation rules rather than performing complex real-time calculations. This reduces processing complexity while maintaining compensation accuracy.
3Measurement precision
If multiple transformation functions are inherited across nodes, then scheduling accuracy for diverse traffic is improved, but system complexity increases
Solution Approach 1:
The patent creates universal transformation functions that can be inherited and applied across multiple scheduler nodes. Instead of configuring unique transformation functions for each node, the system defines a set of universal transformation rules that capture common packet-to-cell conversion patterns. These universal functions can be instantiated and applied at different nodes, reducing configuration complexity while maintaining scheduling accuracy for diverse traffic types.
Data Source
AI summary
A packet scheduler may include logic configured to receive packet information. The packet scheduler may include logic to receive an operating parameter associated with a downstream device that operates with cell-based traffic. The packet scheduler may include logic perform a packet to cell transformation to produce an output based on the operating parameter. The packet scheduler may include logic to use the output to compensate for the downstream device.