RRC Inactive State UE Traffic Load Reduction
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Solution Overview
Problem
The increasing number of User Equipments (UEs) in the RRC_INACTIVE state leads to network traffic issues, as conventional methods lack a viable approach to control UEs in this state, resulting in excessive network traffic load.
Innovation Solution
A method is introduced where a User Equipment (UE) in an RRC_INACTIVE state receives an indicator from the network, determined to be valid through a MOD operation of a bitmap and its UE ID, allowing it to transition to an RRC_IDLE state, thereby managing the number of UEs in the RRC_INACTIVE state and alleviating network traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of User Equipments in the RRC_INACTIVE state increases, then the network can handle more devices with reduced power consumption, but network traffic load increases excessively
Solution Approach 1:
The patent extracts specific User Equipments from the RRC_INACTIVE state by sending indicators to selected UEs to transition to RRC_IDLE state. This removes problematic UEs (those contributing to excessive traffic) from the inactive state while retaining others, thereby reducing network traffic load while maintaining the ability to handle multiple devices.
Solution Approach 2:
The patent applies local quality by differentiating treatment among User Equipments in the RRC_INACTIVE state. Instead of uniformly managing all UEs, the network sends indicators to specific UEs (determined by UE ID and bitmap) to transition to idle state, while other UEs remain in inactive state. This localized control allows selective traffic load management.
2Adaptability or versatility
If conventional methods are used to control User Equipments in RRC_INACTIVE state, then no specific control mechanism exists, but network traffic management becomes impossible
Solution Approach 1:
The patent implements feedback by having the network monitor the state of User Equipments and send indicators back to selected UEs to transition to idle state. This feedback mechanism enables the network to control and manage UEs in RRC_INACTIVE state, providing adaptability while preventing excessive network traffic through active management.
Data Source
AI summary
Provided is a method for a terminal in an RRC inactive (RRC_INACTIVE) state to change an RRC state in a wireless communication system. The method comprises: a step of receiving, from a network, an indication indicating to enter an RRC idle state; a step of determining if the indication is valid for a terminal; and a step of entering the RRC idle state if it is determined that the indication is valid for the terminal.