M2M Device Mobility Management Signaling Timer Extension
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Solution Overview
Problem
Existing wireless networks face congestion and overload due to Machine-to-Machine (M2M) devices performing periodic location, routing, and tracking area updates, which are not efficiently managed, leading to increased signaling overhead and network burden.
Innovation Solution
Implementing a mechanism to extend the timers for periodic updates (T3212, T3312, and T3412) by using multipliers or extended timer values, allowing M2M devices to adjust their update frequencies, thereby reducing network congestion and optimizing Mobility Management procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If M2M devices perform periodic location, routing, and tracking area updates in existing wireless networks, then mobility management is maintained, but network congestion and signaling overhead increase
Solution Approach 1:
The patent extends the periodic update timer values (T3212, T3312, T3412) by introducing multiplier factors that can increase the timer duration. This parameter change allows M2M devices to maintain mobility management functionality while reducing the frequency of periodic updates, thereby decreasing signaling overhead and network congestion.
2Quantity of substance
If the periodic update timer is extended for M2M devices, then network congestion is reduced, but mobility management responsiveness may deteriorate
Solution Approach 1:
The patent applies different timer extension strategies to different device types. M2M devices with low mobility characteristics receive extended timer values through multipliers, while devices requiring rapid mobility management maintain standard timer values. This localized differentiation allows the network to optimize for reduced signaling overhead for appropriate devices without compromising responsiveness for devices that require it.
Data Source
AI summary
Techniques are described that can be used for efficient mobility management signaling. In some cases, a network can specify an extended timer used for a machine to machine (M2M) type device to communicate with a network. The extended timer can be transmitted in connection with an attachment acceptance message, Location Updating Accept message, Tracking Area Update Accept, or Routing Area Update Accept message. In some cases, a timer can be adjusted using a multiplier in order to increase a period at which communications with the network occur. The network can transmit an indication to change a timer by multiplying the timer with the multiplier.