Satellite Coverage Data for UE No-Coverage State Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless communication systems face challenges in managing coverage gaps when user equipment (UE) is outside the coverage area of communication satellites, leading to inefficient use of network resources and battery life, as UEs continue to search for satellite connections during unavailability periods.
Innovation Solution
The system provides UE with satellite coverage data to identify periods of satellite unavailability and availability, allowing it to transition into a no coverage state, reducing satellite cell searching frequency, and resume communication when coverage is restored.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UE continues to search for satellite connections during coverage gaps, then network resource availability is maintained, but battery life is reduced and network resources are wasted
Solution Approach 1:
The network provides satellite coverage data to the UE in advance, enabling the UE to predict coverage gaps before they occur. This allows the UE to proactively enter a no coverage state and stop searching during predicted gaps, conserving battery life while maintaining network resource availability by avoiding unnecessary paging attempts.
2Use of energy by moving object
If UE enters no coverage state during satellite unavailability, then battery life is conserved, but network resource availability may be compromised
Solution Approach 1:
The network provides satellite coverage data as feedback to the UE, enabling the UE to make informed decisions about when to enter and exit no coverage state. This feedback mechanism ensures that the UE can conserve battery life during actual coverage gaps while maintaining network resource availability by resuming searches when coverage is restored.
3Measurement precision
If UE performs frequent satellite cell searching, then coverage detection accuracy is improved, but energy consumption increases
Solution Approach 1:
The network provides satellite coverage data to the UE in advance, enabling the UE to predict coverage gaps before they occur. This allows the UE to proactively enter a no coverage state and stop searching during predicted gaps, conserving battery life while maintaining network resource availability by avoiding unnecessary paging attempts.
Solution Approach 2:
Instead of continuous searching, the UE performs satellite cell searching periodically based on the predicted coverage pattern from satellite coverage data. This periodic action maintains coverage detection accuracy while significantly reducing energy consumption during coverage gaps.
Data Source
AI summary
A user equipment (UE) may access a public land mobile network (PLMN) via a communication satellite. The UE may receive satellite coverage data from the serving PLMN via the communication satellite indicating at which locations and/or at which times satellite coverage is available. The UE may determine, based on the satellite coverage data, a first time of satellite unavailability for a location of the UE and a second time of satellite availability. The UE may enter a no coverage state following the first time. The UE may inhibit mobile originating requests and/or reduce a frequency of satellite cell searching while in the no coverage state. The UE may leave the no coverage state at the second time. The satellite coverage data may comprise a coverage map for a grid of locations. Extra coverage data may be provided for satellite availability for other PLMNs and/or for terrestrial cells.