End-to-End Time Slot Allocation Using Node Delay Information
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Solution Overview
Problem
The current method for establishing end-to-end slicing channels in metro transport networks (MTN) leads to increased processing delays due to inefficient slot allocation.
Innovation Solution
A method for determining and optimizing slot allocation on an end-to-end channel by considering delay information, where node devices calculate or receive requests to determine delays and allocate slots with optimal delays, either individually or with centralized system assistance, to reduce processing delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If slot allocation is performed using conventional methods in metro transport networks, then end-to-end slicing channels can be established, but processing delays within nodes increase
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing delay values for different slot allocation schemes before actual slot allocation occurs. When a slot allocation request comes, the system directly queries the pre-calculated delay values and selects the optimal scheme, avoiding real-time complex calculations. This resolves the contradiction by preparing delay information in advance, enabling fast selection of low-delay allocation schemes without compromising channel establishment reliability.
2Loss of time
If delay information is considered as an input condition for slot allocation, then processing delays are reduced, but system complexity increases due to additional delay determination and transmission processes
Solution Approach 1:
The patent applies self-service by having each network node autonomously determine its own delay values for different slot allocations and store them locally. Each node independently queries its pre-stored delay values during slot allocation without needing to request from external controllers. This reduces system complexity while maintaining delay optimization, as nodes serve themselves rather than relying on centralized delay management.
Solution Approach 2:
The system performs preliminary action by pre-calculating and storing delay values in each node before actual slot allocation operations. This advance preparation eliminates the need for complex real-time delay calculations, reducing both processing delay and system complexity during operational phase.
3Productivity
If multiple node devices independently determine and transmit delay information, then slot allocation optimization is improved, but information transmission overhead increases
Solution Approach 1:
The patent extracts only the essential delay value parameter from each node's slot allocation information, transmitting only this critical data element rather than complete slot allocation details. This extraction of key information reduces transmission overhead while maintaining the ability to optimize slot allocation based on delay characteristics across multiple nodes.
Data Source
AI summary
A time slot allocation processing method includes: a node device determining a time delay, in the node device, from a certain input port time slot to another port time slot, wherein the node device is a node device on an end-to-end channel; and the node device determining that the time delay is used for the establishment of end-to-end channel time slot allocation. A time delay sent by each node device is received, and end-to-end channel time slot allocation is performed according to each time delay. By using the present application, a time delay caused by time slot allocation can be reduced in a channel, thereby decreasing an end-to-end channel time delay.