Wait Timer Table Lookup for MTC Network Overload
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in network resource allocation and performance under Machine-to-Machine (MTC) device loads due to limited wait timer range and low resolution, leading to network overload and repeated wait time signaling.
Innovation Solution
A method and apparatus for calculating a wait timer value using a table-based lookup procedure, allowing non-linear scaling and increased granularity, which involves dividing timer setup information into portions and using these to derive a wait timer value for delay tolerant MTC devices, thereby improving network resource usage efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the wait timer range is extended by linear scaling (e.g., multiplying by 100), then the wait time can be longer to handle MTC devices, but the resolution and accuracy of wait time settings deteriorate due to limited bit space
Solution Approach 1:
The wait timer value is divided into two parts: a first part using the existing 4-bit address space (values 1-16 seconds) and a second part using a table lookup mechanism with timer data. This segmentation allows the system to maintain fine resolution for small wait times while enabling longer wait times through table-based extension, effectively resolving the contradiction between extending wait time duration and maintaining resolution.
Solution Approach 2:
The patent changes the parameter representation from a simple linear scaled integer to a composite structure involving table lookups. By using a table comprising timer data and values corresponding to timer setup information, the system can represent wait times with both long duration and high precision, avoiding the resolution loss that would occur with simple linear scaling.
2Productivity
If a fixed wait timer range (1-16 seconds) is used for MTC devices, then network resources are conserved, but network overload problems persist due to insufficient wait time to distribute traffic
Solution Approach 1:
The wait timer is made dynamic by introducing a table lookup mechanism that can provide different wait time values based on network conditions and device requirements. This allows the system to extend wait times when needed to distribute MTC traffic over time, while maintaining efficient resource usage by not unnecessarily extending wait times for all devices, thus resolving the contradiction between network efficiency and overload handling.
3Measurement precision
If the wait timer is extended to handle MTC devices with longer wait times, then more accurate wait time distribution is achieved, but the complexity of timer configuration increases
Solution Approach 1:
The patent introduces a table as an intermediary between the network and the wait timer mechanism. This table comprises timer data and values corresponding to timer setup information, serving as a mediator that translates network decisions into accurate wait time values. The table lookup procedure simplifies the configuration complexity by providing pre-computed wait time values rather than requiring complex real-time calculations, thus resolving the contradiction between precision and complexity.
Data Source
AI summary
The invention provides a method, an apparatus and a computer program for wireless communication. The invention includes setting a wait timer value for a delay tolerant apparatus for wireless communication as a response to an unsuccessful radio resource connection setup procedure, said wait timer delaying the radio resource connection setup procedure and calculating or searching the wait timer value from a table comprising timer data and values corresponding to timer setup information.