NCR Forwarding Activation Control Through Paging in RRC Idle/Inactive States
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Solution Overview
Problem
There is a need for improved techniques in 5G New Radio (NR) technology to efficiently manage the activation and deactivation of network-controlled repeaters (NCRs) in radio resource control (RRC) idle or inactive states to optimize power consumption and communication efficiency.
Innovation Solution
A method and apparatus for a wireless device to receive control messages via paging early indication (PEI), paging downlink control information (DCI), or paging messages to determine and perform activation or deactivation operations for the forwarding component of NCRs, and for a base station to transmit these control messages to manage NCR operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wireless device continuously monitors for downlink data in RRC-connected state, then communication responsiveness is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by transitioning the NCR between active and inactive states based on RRC state changes. The NCR dynamically adjusts its operational status - remaining active during RRC-connected state for immediate data transmission and transitioning to inactive state during RRC-idle/inactive states to conserve energy, thus resolving the contradiction between responsiveness and power consumption
Solution Approach 2:
The patent implements periodic action through the mechanism of periodic paging indications. The network periodically sends paging messages to wake up the NCR from inactive state when downlink data becomes available, allowing the NCR to alternate between power-saving inactive state and active monitoring state, balancing energy efficiency with communication reliability
2Use of energy by moving object
If the NCR remains in inactive state to save power, then power consumption is reduced, but data transmission capability deteriorates
Solution Approach 1:
The patent applies preliminary action by having the network prepare and send paging indications in advance before the NCR needs to transmit data. The network proactively notifies the NCR of incoming downlink data through paging messages, allowing the NCR to transition from inactive to active state just in time for data transmission, thus maintaining capability while minimizing inactive duration
Solution Approach 2:
The patent implements feedback through the paging indication mechanism where the network continuously monitors data availability and provides feedback to the NCR. When downlink data is present, the network sends a paging message as feedback to wake up the NCR, ensuring the NCR responds appropriately to maintain data transmission capability while remaining inactive most of the time
3Reliability
If the NCR is activated frequently to ensure data availability, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent applies periodic action through structured periodic paging cycles. Instead of continuous activation, the system uses periodic paging opportunities where the network announces data availability. This allows reliable data delivery while minimizing the duration of active state, thus reducing power consumption compared to frequent activations
Solution Approach 2:
The patent implements self-service by enabling the NCR to autonomously manage its activation based on paging indications. The NCR independently decides when to transition from inactive to active state based on received paging messages, without requiring continuous network control. This autonomous behavior reduces unnecessary activations and associated power consumption while maintaining reliable data availability
Data Source
AI summary
In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a wireless device. The wireless device receives, by a mobile termination (MT) component of the wireless device while in a radio resource control (RRC) idle or inactive state, a control message via one of a paging early indication (PEI), paging downlink control information (DCI), or a paging message. The wireless device determines an activation or deactivation operation for a forwarding component of the NCR according to the control message. The wireless device performs the activation or deactivation operation at the forwarding component.