NSIS QoS Path Management via Path-Type Identification
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Solution Overview
Problem
Current communication methods using NSIS for QoS path establishment in mobile IP networks face challenges in efficiently managing multiple paths, particularly in distinguishing between triangle and optimized paths, leading to inefficient resource reservation and increased processing load due to the limitations of existing signaling protocols.
Innovation Solution
A communication method that detects and identifies path types, generates path-type identifiers, and includes these in signaling messages to control additional services, allowing routers to manage QoS paths effectively by distinguishing between triangle and optimized paths, reducing resource reservation errors and processing loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing NSIS signaling protocols are used for QoS path establishment in mobile IP networks, then QoS guarantee services can be provided, but the processing load increases and resource reservation becomes inefficient due to inability to distinguish between triangle and optimized paths
Solution Approach 1:
The patent segments the QoS path management by introducing path-type identifiers that distinguish between triangle paths and optimized paths. This segmentation allows routers to process different path types separately, reducing the processing load by avoiding unnecessary differentiation attempts for already-identified path types, while maintaining reliable QoS guarantee services.
2Reliability
If existing NSIS signaling protocols are used for QoS path establishment in mobile IP networks, then QoS guarantee services can be provided, but resource reservation becomes inefficient due to limitations of existing signaling protocols
Solution Approach 1:
The patent applies preliminary action by incorporating path-type identifier generation and inclusion in signaling messages before the QoS path establishment process begins. Routers can pre-identify and categorize paths using these identifiers, enabling efficient resource reservation decisions to be made in advance rather than during the resource allocation phase, thus improving overall resource reservation efficiency while maintaining QoS guarantee services.
Data Source
AI summary
A technique for flexibly performing processes depending on the type of a path for providing an additional service when there are a plurality of paths for providing additional services for the same session between terminals communicating with each other over a network is disclosed. According to the technique, when a mobile terminal (MN 100) establishes a QoS path using NSIS to a corresponding node (CN 124) on different types of data communication paths, a signaling message including information (MIE) representing the path type is created and transmitted. Each node (QNE) with an NSIS QoS function, which has received the message, identifies a plurality of QoS paths by comparing the MIE, a session identifier and a flow identifier, and performs processing of the QoS paths according to control information (CI) from MNs or/and the policy which the QNE has.