Timeslot Assignment in Wireless Networks Without Timing Advance Offset
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Solution Overview
Problem
Current GSM/EDGE radio access networks face limitations in supporting high multislot configurations without timing advance offset, leading to restricted timeslot allocations and inefficient resource utilization, particularly for mobile stations of classes 38-39 and 44-45, due to inconsistencies in standard specifications and requirements for TA offset usage.
Innovation Solution
The introduction of new multislot configurations and techniques that allow flexible timeslot assignments without relying on timing advance offset, such as using shifted USF and alternative switching times combinations (Tra/Ttb or Tta/Trb), enabling expanded timeslot allocations and improved resource management for high multislot classes, even when TA offset is not used.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If timing advance offset is used to support high multislot configurations, then the number of supported timeslots increases, but signaling overhead and system complexity increase
Solution Approach 1:
The patent changes the timing reference parameter from frame-based to superframe-based (10-frame period), allowing mobile stations to use alternative switching times combinations (Tra/Ttb or Tta/Trb) without TA offset. This parameter change enables high multislot configurations while reducing signaling overhead and system complexity.
2Adaptability or versatility
If timing advance offset is required for high multislot classes, then timeslot allocation flexibility improves, but resource utilization efficiency deteriorates due to restricted allocations
Solution Approach 1:
Instead of requiring TA offset to achieve flexible timeslot allocations, the patent inverts the approach by using superframe-based timing references that naturally support alternative switching times combinations. This inversion enables both allocation flexibility and efficient resource utilization without the restrictions imposed by TA offset requirements.
3Productivity
If shifted USF and alternative switching times are used, then data transmission efficiency increases, but compatibility with existing standards decreases
Solution Approach 1:
The patent introduces dynamic timing reference mechanisms where mobile stations can adaptively switch between frame-based and superframe-based timing references depending on their multislot class and network configuration. This dynamic approach maintains compatibility with existing GSM/EDGE standards while enabling enhanced data transmission efficiency through alternative switching times combinations.
Data Source
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AI summary
A method of a mobile station, comprising: transmitting device capability information to a wireless network, the device capability information indicating a multislot class of the mobile station; receiving a timeslot assignment from the wireless network, wherein the timeslot assignment indicates an advanced multislot configuration not requiring a use of a timing advance offset by the wireless network, and is based on the multislot class of the mobile station; and operating the mobile station based on the timeslot assignment.