NTN Relay UE Sleep-Wake Synchronization for Reliable Remote Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In NTN networks, relay user equipment and remote user equipment face challenges in maintaining normal communication while in sleep mode, leading to issues such as mismatched sleep parameters, failed handovers, and poor channel quality during base station switching, which affect data transmission and energy efficiency.
Innovation Solution
Electronic equipment determines sleep parameters and wakeup times for both relay and remote user equipment to ensure they are synchronized, allowing communication via relay equipment when needed, thereby ensuring both can operate in sleep mode and conserve energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If relay user equipment and remote user equipment operate in sleep mode to save energy, then energy consumption is reduced, but communication reliability deteriorates due to mismatched sleep parameters and failed handovers
Solution Approach 1:
The network side equipment determines and configures sleep parameters and wakeup times for both relay UE and remote UE in advance, ensuring they wake up simultaneously before handover operations. This preliminary synchronization of sleep-wakeup cycles enables reliable communication during handover while maintaining energy savings during normal operation.
Solution Approach 2:
The system implements feedback mechanisms where the network side equipment monitors the sleep and wakeup states of relay UE and remote UE, adjusting their sleep parameters dynamically to ensure they remain synchronized. This feedback loop maintains communication reliability while optimizing energy consumption based on actual network conditions.
2Loss of energy
If relay user equipment and remote user equipment use independent sleep parameters to optimize individual energy efficiency, then overall energy savings increase, but communication quality deteriorates due to desynchronization
Solution Approach 1:
The patent merges the sleep parameter management of relay UE and remote UE into a unified configuration approach. The network side equipment determines a single set of sleep parameters and wakeup times that apply to both devices, ensuring they operate in synchronized sleep-wakeup cycles. This unified approach maintains energy efficiency while preventing desynchronization issues.
Solution Approach 2:
The system performs preliminary determination of synchronized sleep parameters by the network side equipment before the devices enter sleep mode. This advance configuration ensures that both relay UE and remote UE will wake up at the same time, maintaining communication quality while achieving energy savings through coordinated sleep operation.
3Speed
If remote user equipment wakes up independently without coordination, then responsiveness improves, but communication fails because relay user equipment may be in sleep state
Solution Approach 1:
The network side equipment performs preliminary configuration of synchronized wakeup times for both relay UE and remote UE. This advance coordination ensures that when remote UE needs to communicate or perform handover, the relay UE is guaranteed to be in an awake state, maintaining both responsiveness and communication reliability.
Solution Approach 2:
The network side equipment acts as an intermediary that coordinates the wakeup states of relay UE and remote UE. By controlling and synchronizing their sleep-wakeup cycles through centralized management, the system ensures that remote UE can respond quickly when needed while guaranteeing that relay UE is available to handle the communication.
Data Source
AI summary
An electronic device, a wireless communication method, and a computer-readable storage medium. The electronic device comprises a processing circuit, which is configured to: according to a sleep parameter and a start time of the next wake-up state of a relay user equipment (UE), determine a sleep parameter and a start time of the next wake-up state of a remote UE, so that when the remote UE is in a wake-up state, the relay UE is also in a wake-up state; and send the sleep parameter and the start time of the next wake-up state of the remote UE to the remote UE, the remote UE communicating with a satellite device by means of the relay UE. The wireless communication method enables a relay UE to provide services for a remote UE while saving, in a NTN network, the energy of the relay UE and the remote UE.