PDCP Reordering Timer RRC Reconfiguration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently reconfiguring the PDCP reordering timer when an eNB changes its value, leading to potential delays and inefficiencies in data processing.
Innovation Solution
A method and device for reconfiguring the PDCP reordering timer by restarting it with a new value upon receiving an RRC message, setting the reordering_PDCP_RX_COUNT to a COUNT value associated with RX_HFN and Next_PDCP_RX_SN, ensuring seamless reconfiguration and minimizing reordering delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the PDCP reordering timer is reconfigured with a new value by the eNB, then the data processing efficiency is improved, but the reordering delay increases due to timer restart requirements
Solution Approach 1:
The patent applies preliminary action by pre-configuring the PDCP reordering timer value in the RRC message before the actual reconfiguration is needed. When the eNB sends the RRC reconfiguration message with the new timer value, the UE is already prepared to apply it immediately without waiting for timer expiration or additional signaling, thus reducing reordering delay while maintaining efficient data processing
Solution Approach 2:
The patent implements dynamics by making the PDCP reordering timer value adjustable and reconfigurable through RRC messages. The timer can be dynamically changed from its initial value to a new value based on current network conditions and data processing requirements, allowing the system to adapt between efficiency and delay tolerance as needed
2Stability of the object's composition
If the PDCP reordering timer is restarted with a new value, then the timer alignment with configuration values is improved, but the reconfiguration complexity increases
Solution Approach 1:
The patent merges the timer reconfiguration process with the existing RRC message exchange mechanism. Instead of creating a separate complex reconfiguration procedure, the new timer value is embedded within standard RRC reconfiguration messages that are already part of the LTE protocol stack, thereby maintaining timer configuration alignment while avoiding additional system complexity
Solution Approach 2:
The patent applies self-service by enabling the UE to automatically restart and reconfigure its PDCP reordering timer based on received RRC messages without requiring manual intervention or complex external control. The UE autonomously processes the timer value from the RRC message, restarts the timer accordingly, and maintains proper synchronization, simplifying the overall reconfiguration process
Data Source
Figure 1~2A
Figure 2B
Figure 3(a)~4
AI summary
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for reconfiguring a PDCP reordering timer in wireless communication system, the method comprising: starting a PDCP (Packet Data Convergence Protocol) reordering timer; receiving an RRC (Radio Resource Control) message indicating that a new value is used for the PDCP reordering timer; re-starting the PDCP reordering timer with the new value; and setting a reordering_PDCP_RX_COUNT to a COUNT value associated to RX_HFN and Next_PDCP_RX_SN upon when the PDCP reordering timer with the new value re-start