Communication Node Resource Reuse Control via Path State
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Solution Overview
Problem
Conventional communication network technologies face inefficiencies in resource reuse, leading to increased equipment costs and reduced reliability due to the inability to specify resource reuse between paths with the same priority, resulting in unnecessary resource allocation and service interruptions.
Innovation Solution
A communication node apparatus that includes means to send and receive control messages with path identification or group identification information to permit or inhibit resource reuse, allowing for efficient resource management by reusing resources from specific paths or groups within the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If resource reuse is determined based on priority values alone, then path establishment is simple, but resource allocation efficiency deteriorates and unnecessary resource allocation occurs
Solution Approach 1:
The patent segments the resource reuse decision process into multiple criteria: priority values and path state (failed/normal). Instead of using only priority, the system divides the decision logic to first check path state, then apply priority rules, thereby improving resource allocation efficiency while maintaining manageable complexity
Solution Approach 2:
The patent applies different quality attributes to different paths based on their state. Normal paths and failed paths are treated differently in the resource reuse decision, with failed paths having higher priority for resource reuse. This local differentiation optimizes resource allocation efficiency by targeting resources where they are most needed
2Reliability
If resource reuse is inhibited to avoid service interruption, then service reliability is improved, but necessary equipment amount increases
Solution Approach 1:
The patent converts the potentially harmful effect of path failure into a beneficial resource reuse opportunity. When a path fails, instead of simply blocking resource reuse, the system uses the failure state as a trigger to efficiently allocate resources to alternative paths, thereby reducing overall equipment requirements while maintaining service reliability
Solution Approach 2:
The patent changes the parameter used for resource reuse determination from static priority values to dynamic path state information. By using path state (failed/normal) as a determining factor, the system can adapt resource allocation to current network conditions, reducing the need for excessive equipment while ensuring service continuity
3Measurement precision
If path state information is added to control messages, then resource reuse precision is improved, but message complexity increases
Solution Approach 1:
The patent makes the path state information serve multiple functions: it identifies failed paths for resource reuse, determines priority rules, and guides resource allocation decisions. By making this single piece of information multi-functional, the system improves measurement precision without proportionally increasing message complexity
Data Source
AI summary
In a communication system, including a plurality of communication node apparatuses, for establishing a path for communication by exchanging a message among the plurality of communication node apparatuses, before establishing a path, an identifier of a path for which reuse of resources of the path to be established is permitted or inhibited is determined, and the determined identification information is included in a control message so that the path is established. A communication node apparatus in which the path has been established determines availability of reuse of resources the path based on the identification information in the control message. When an event such as failure occurrence, occurrence of resource reuse or dissolution of resource reuse occurs, the communication node apparatus executes path priority change processing, so that priority can be changed such that resource reuse can be performed most efficiently.