Terminal Timer Segmentation for Priority NTN Reconnection
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Solution Overview
Problem
In non-terrestrial networks, terminals with priority processes cannot be effectively prioritized for connection during discontinuous coverage, leading to inefficiencies in network access.
Innovation Solution
The DCW timer range is divided into segments, with high-priority terminals using a specific segment for prioritized processing, while lower-priority terminals use another segment, based on their access IDs, allowing timely reconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single DCW timer range is used for all terminals, then the network can handle discontinuous coverage generally, but high-priority terminals cannot be prioritized for connection
Solution Approach 1:
The DCW timer range is divided into multiple segments, with each segment assigned to different priority levels. High-priority terminals are assigned to a first segment with shorter timer values, while low-priority terminals use a second segment with longer timer values. This segmentation enables differentiated connection prioritization while maintaining manageable complexity through structured range division.
2Speed
If the DCW timer period is shortened for priority terminals, then connection speed is improved, but the timer range management becomes more complex
Solution Approach 1:
Different timer value characteristics are applied to different terminal priority groups. High-priority terminals receive shorter timer periods from the first range segment to enable faster reconnection, while low-priority terminals receive longer timer periods from the second range segment. This local differentiation optimizes connection speed for priority terminals without requiring complex individual timer configurations for each terminal.
Data Source
AI summary
A terminal includes: a reception unit configured to receive, via a downlink, information indicating a range of a value for determining a timer period; a control unit configured to determine a value in the range of value for determining the timer period, based on information indicating a priority of the terminal itself, and to determine the timer period based on the determined value; and a transmission unit configured to transmit an uplink signal for connection after an elapse of the determined timer period from detection of a release of a communication resource.