UE Paging Management in RRC Inactive State
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Solution Overview
Problem
Current wireless communication systems face challenges in accurately and efficiently handling multicast group paging and unicast paging, particularly in managing the transition of User Equipment (UE) between different Radio Resource Control (RRC) states and handling simultaneous CN paging and group paging messages.
Innovation Solution
The proposed method involves a User Equipment (UE) receiving a paging message while in an RRC inactive state, determining the presence of CN paging and group paging, and accordingly sending relevant information to upper layers and transitioning to an RRC idle state. This method ensures appropriate handling of both CN paging and group paging within the same message.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the UE remains in RRC inactive state to save energy, then energy consumption is reduced, but the UE cannot properly handle simultaneous CN paging and group paging messages
Solution Approach 1:
The patent implements dynamic state transition logic where the UE automatically switches from RRC inactive to RRC connected state when detecting simultaneous CN paging and group paging messages. This dynamic adaptation allows the system to maintain energy efficiency during normal operation while ensuring reliable message handling when needed, resolving the contradiction between energy saving and paging accuracy.
Solution Approach 2:
The patent changes the RRC state parameter from inactive to connected based on the detection of specific paging conditions. By monitoring paging message types and triggering state transitions when both CN paging and group paging are detected, the system dynamically adjusts its operational mode to balance energy consumption with message handling reliability.
2Reliability
If the UE transitions to RRC connected state to handle paging messages accurately, then paging message handling accuracy is improved, but energy consumption increases
Solution Approach 1:
The system dynamically transitions between RRC states based on paging message content. The UE remains in energy-efficient inactive state during normal operation and only transitions to connected state when both CN paging and group paging are detected, minimizing energy consumption while ensuring accurate handling when required.
Solution Approach 2:
The patent implements preliminary detection of paging message types before state transition. The UE first monitors paging messages in inactive state, identifies when both CN and group paging are present, and then transitions to connected state. This preliminary action approach avoids unnecessary state transitions and associated energy consumption.
3Loss of time
If the UE monitors both CN paging and group paging in RRC inactive state, then paging response time is reduced, but the complexity of paging operation increases
Solution Approach 1:
The patent segments the paging monitoring process into distinct phases: initial monitoring in inactive state, detection of message types, conditional state transition, and selective processing. This segmentation reduces complexity by breaking down the complex simultaneous monitoring task into manageable steps while maintaining fast response times.
Solution Approach 2:
The patent uses parameter changes in RRC state as a control mechanism to manage complexity. By transitioning from inactive to connected state based on detected paging conditions, the system simplifies the monitoring logic while maintaining the ability to respond quickly to both CN and group paging messages simultaneously.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein disclose methods for managing a paging operation in a wireless network (1000) by a UE (100). The method includes receiving a paging message from a network device (200), where the UE (100) is in a Radio Resource Control (RRC) inactive state. Further, the method includes determining whether the UE (100) has received at least one of a core network (CN) paging and a group paging in the paging message. Further, the method includes sending at least one of a UE identity, an access type and a Temporary Mobile Group Identity (TMGI) to an upper layer upon determining that the UE (100) simultaneously receives the CN paging and the group paging in the paging message. Further, the method includes transiting the UE (100) into a Radio Resource Control (RRC) idle state from the RRC inactive state.