Mobility Manager Bandwidth Allocation Fairness
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Solution Overview
Problem
Existing telecommunications systems with mobility managers fail to ensure fair bandwidth distribution across different access networks, leading to disproportionate bandwidth consumption by non-mobility-managed mobile nodes, which can degrade the quality of service for mobility-managed nodes, especially in unregulated WLANs where one node's traffic can affect all others.
Innovation Solution
A mobility manager that utilizes traffic shapers to control bandwidth allocation dynamically, receiving traffic shaping reports to adapt traffic patterns and prioritize bandwidth distribution based on demand and service level agreements, ensuring a fair share of bandwidth for mobility-managed nodes by reallocating unused bandwidth from non-mobility-managed nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If unregulated WLAN access is provided to mobile nodes, then high data rate communications are enabled, but disproportionate bandwidth consumption by individual nodes degrades quality of service for other nodes
Solution Approach 1:
The mobility manager receives traffic shaping reports from access networks about current bandwidth usage by non-mobility-managed nodes, then adapts traffic patterns and communicates adjusted patterns back to traffic shapers. This closed-loop feedback mechanism enables dynamic QoS adjustment based on real-time network conditions, ensuring that high data rates are maintained while preventing any single node from consuming disproportionate bandwidth.
Solution Approach 2:
The system dynamically changes traffic shaping parameters and bandwidth allocation parameters based on received traffic reports. The mobility manager adapts traffic patterns by modifying parameters such as bandwidth limits, priority levels, and shaping rates, allowing the network to transition between unregulated high-speed mode and regulated QoS-mode depending on current utilization conditions.
2Productivity
If bandwidth is allocated without traffic shaping control, then mobility-managed nodes can achieve high throughput, but non-mobility-managed nodes consume excessive bandwidth degrading overall network performance
Solution Approach 1:
The mobility manager acts as an intermediary between the applications server and the access network traffic shapers. It receives traffic shaping reports from the access network, processes this information about bandwidth consumption by non-mobility-managed nodes, and communicates adapted traffic patterns back to the traffic shapers. This intermediary role enables indirect control of bandwidth allocation without directly interfering with the data path, maintaining throughput while preventing waste.
3Reliability
If dynamic traffic pattern adaptation is implemented, then fair bandwidth distribution is achieved, but system complexity increases due to additional signaling and control mechanisms
Solution Approach 1:
The mobility manager performs multiple functions using the same control infrastructure: it manages mobility handovers between access networks, controls traffic shaping patterns, allocates bandwidth dynamically, and monitors network conditions. By consolidating these functions into a single multi-functional entity, the system achieves fair bandwidth distribution without proportionally increasing complexity, as the same signaling and control mechanisms serve multiple purposes.
Data Source
AI summary
A mobility manager provides mobility management of mobile nodes in accordance with bandwidth allocated from an access point. The mobility manager receives traffic shaping report messages from a traffic shaper within an access network of which the access point forms part, the traffic shaping report messages reporting on a current use of bandwidth for each of a plurality of different traffic types by one or more non mobility-managed mobile nodes which are not controlled by the mobility manager, and reporting on bandwidth used by one or more of the mobility-managed mobile nodes, which are managed by the mobility manager. The traffic pattern is adapted in accordance with a current use of bandwidth for the different traffic types by the non mobility-managed mobile node and is communicated to the traffic shaper for use in controlling the bandwidth of the access point in accordance with the adapted traffic pattern.