RLC Reconfiguration Delay in LTE Wireless Systems
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Solution Overview
Problem
In wireless communication systems, particularly in LTE, immediate reconfiguration of RLC-related parameters can cause system failures and impact performance due to improper setting of timers and counters, leading to RLC errors.
Innovation Solution
A method where a communication device receives a dedicated signaling with reconfiguration values for RLC-related parameters but does not immediately apply these values when they are in-use, instead waiting for the parameters to be reused or reset, ensuring a seamless transition and preventing errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the UE immediately uses the reconfigured value of an in-use RLC parameter, then the reconfiguration is applied quickly, but it causes UE system failure or impacts communication system performance
Solution Approach 1:
The patent applies preliminary action by having the UE prepare to use the reconfigured value only after the current RLC procedure completes. The reconfiguration is acknowledged and stored, but not immediately activated. Instead, the UE waits for the natural completion point of the current procedure (when the counter reaches its maximum value or the procedure finishes) before applying the new value. This prevents disruption to ongoing operations while still achieving reconfiguration.
2Productivity
If the UE immediately replaces the current RLC counter maximum value with a reconfigured value, then the parameter is updated quickly, but it causes RLC errors due to improper maximum value setting
Solution Approach 1:
The patent applies preliminary action by preparing the reconfigured counter value in advance but delaying its application until the current counting procedure completes. The UE stores the reconfigured maximum value and waits for the natural termination point of the current procedure before activating the new value. This ensures the counter is only reconfigured when safe, preventing RLC errors.
Solution Approach 2:
The patent applies beforehand cushioning by creating a buffer period where the reconfigured value is prepared but not yet active. The UE maintains the old counter value during the transition period, effectively cushioning against the potential harm of immediate replacement. The new value is only applied after the current procedure naturally completes, providing a safety buffer that prevents counter-related errors.
Data Source
AI summary
A method of RLC reconfiguration for a communication device of a wireless communication system includes receiving a dedicated signaling including a reconfiguration value corresponding to a RLC-related parameter when the RLC-related parameter is in-use, and not immediately starting to use the reconfiguration value on the in-use RLC-related parameter when the reconfiguration value is extracted from the dedicated signaling.