User Equipment Service Time Estimation for Moving-Cell Handover
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge of managing radio coverage in non-terrestrial networks, particularly those using earth-moving radio cells, requires a redesign of mobility and coverage approaches due to the dynamic nature of satellite or high-altitude platform movement, leading to potential coverage and connection losses for user equipment.
Innovation Solution
User equipment in non-terrestrial networks receives reference location and service time information from a base station entity, allowing it to compute or estimate its specific service time interval by generating its position relative to the reference location, enabling precise determination of coverage duration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If earth-moving radio cells are used to provide radio coverage in non-terrestrial networks, then the coverage area can be dynamically adjusted to follow satellite or high-altitude platform movement, but coverage losses and connection interruptions occur for user equipment due to the dynamic nature of the moving cells
Solution Approach 1:
The base station entity transmits reference location information and general service time information to the user equipment in advance. The user equipment generates its own location information and computes the specific service time interval before the handover occurs, allowing early preparation for the upcoming handover event and reducing connection interruptions.
Solution Approach 2:
The system implements a feedback mechanism where the user equipment continuously monitors its location relative to the moving radio cell and computes service time intervals. This feedback loop enables the user equipment to anticipate handover events and trigger handover procedures at optimal times, improving connection reliability during dynamic movement.
2Loss of time
If the base station entity transmits reference location information and general service time information to enable user equipment to compute specific service time intervals, then handover preparation time is increased, but the complexity of information processing and computation increases for the user equipment
Solution Approach 1:
The computation task is segmented into two parts: the base station entity provides reference location information and general service time information, while the user equipment generates its own location information and computes the specific service time interval. This segmentation distributes processing complexity appropriately, giving the user equipment just enough computational burden to calculate timing based on provided reference data, thereby extending handover preparation time without overwhelming the user equipment.
3Device complexity
If stationary radio cells are used in terrestrial networks, then network infrastructure is simple and stable, but the system cannot adapt to mobile satellite or high-altitude platform networks where coverage areas move relative to the earth surface
Solution Approach 1:
The patent introduces dynamic elements into the network by implementing earth-moving radio cells that move relative to the earth surface along a direction of movement. The base station entity transmits reference location information that changes over time as the satellite or high-altitude platform moves, enabling the network to adapt to dynamic coverage areas while maintaining a relatively simple infrastructure compared to fully mobile systems.
Data Source
AI summary
A method for computing or estimating a service time interval or service time information related to a user equipment in a mobile communication network includes: in a first step, generating, by the user equipment, location information related to the user equipment's position; and in a second step, computing or estimating, by the user equipment, the service time interval or the service time information, wherein the computing or estimating is based on the location information related to the user equipment's position and based on reference location information received from a base station entity.