Move Indication for Wireless QoS Management
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Solution Overview
Problem
In wireless communication networks, providing quality of service (QoS) is challenging due to the mobility of subscribers and differences in network architecture, as existing resource control protocols are not well-suited for wireless packet-switched networks, leading to inflexible and inefficient QoS support.
Innovation Solution
A method and apparatus that inform resource requesters of changes in the point of attachment for wireless terminals, allowing for dynamic QoS management by generating a move indication and providing quality of service states associated with the terminal, enabling flexible QoS treatment across different access nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional centralized QoS request methods are used, then QoS support can be provided, but the system becomes inflexible and inefficient due to mobility of wireless terminals
Solution Approach 1:
Instead of having a centralized entity track and manage QoS for mobile terminals, the patent inverts the approach by having access nodes and terminal devices actively provide move indications to resource requesters. This reverses the traditional signaling direction and makes the system adaptive to terminal mobility without centralized control overhead.
Solution Approach 2:
The system enables self-service by allowing access nodes and terminal devices to autonomously generate and transmit move indications when attachment changes occur. This eliminates the need for centralized QoS management entities to continuously track terminal positions, improving efficiency while maintaining flexibility.
2Reliability
If existing resource control protocols are used in wireless networks, then network infrastructure can be maintained, but QoS support becomes inadequate due to architecture differences and terminal mobility
Solution Approach 1:
The patent introduces dynamic QoS management by implementing a mechanism where move indications are generated and transmitted in real-time when attachment changes occur. This dynamic approach allows QoS treatment to adapt to terminal mobility while maintaining consistency through structured resource state information transfer between access nodes.
Solution Approach 2:
The patent uses resource state information as an intermediary mechanism to transfer QoS context between access nodes during handoff. This intermediary structure ensures QoS treatment consistency is maintained while supporting terminal mobility, bridging the gap between existing protocols and wireless network requirements.
3Ease of operation
If centralized QoS management is implemented, then resource allocation can be controlled, but system complexity increases and response time to mobility events decreases
Solution Approach 1:
The patent segments QoS management functions by distributing responsibilities: terminal devices generate move indications, access nodes detect attachment changes and transfer resource states, and resource requesters receive notifications. This segmentation reduces centralization complexity while maintaining resource allocation control through distributed coordination.
Solution Approach 2:
The system performs preliminary action by pre-establishing resource state information at access nodes before handoff occurs. When mobility events happen, the pre-prepared resource states can be quickly transferred and notifications sent, reducing response time while maintaining control through structured resource management.
Data Source
AI summary
The claimed subject matter relates to performing quality of service management in a mobile wireless communications system. In more detail, in some wireless environments a wireless terminal can be connected to multiple access nodes by way of links, and the wireless terminal can move between various access nodes changing its points of attachment to the network, including its primary point of attachment. Requesters of resources with respect to the wireless terminal can be notified when the primary point of attachment alters, such that subsequent requests are provided to a correct access node (e.g., base station).