Sidelink Relay Mobility Control for Connected-Mode Handover
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge lies in managing the mobility of a terminal's connected mode in wireless communication systems, particularly when the terminal is connected to a base station through a sidelink relay or directly, involving handover and path change procedures across different types of connections.
Innovation Solution
A method and device for processing connection mode mobility by receiving measurement configuration information, performing measurements on neighboring cells and candidate sidelink relay terminals, and transmitting results to the base station, with the base station determining handovers or relay changes based on these measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a terminal uses sidelink relay connection to expand service coverage, then coverage area is improved, but connection complexity increases
Solution Approach 1:
The patent segments the connection management process into distinct phases: initial connection establishment via first sidelink relay, measurement phase for evaluating second sidelink relay, and conditional handover phase. This segmentation allows the system to manage complexity through structured decision-making while maintaining expanded coverage capability.
Solution Approach 2:
The patent implements preliminary measurement of signal quality for candidate sidelink relays before actual handover occurs. The terminal measures and reports on potential second sidelink relays in advance, allowing the network to prepare handover parameters and make informed decisions about connection optimization without disrupting ongoing communication.
2Reliability
If the terminal performs frequent handover between direct and relay connections, then connection reliability is improved, but battery consumption increases
Solution Approach 1:
The terminal performs preliminary measurements of signal quality for both direct base station connections and candidate sidelink relay connections before executing handover. This advance measurement allows the system to assess connection quality trends and make more informed handover decisions, reducing unnecessary frequent handovers while maintaining reliable connections.
Solution Approach 2:
The patent implements a feedback mechanism where the terminal reports measurement results to the network, and the network uses this information to determine optimal handover timing. This feedback loop enables intelligent control of handover frequency, balancing connection reliability with energy conservation by avoiding premature or unnecessary handovers.
3Productivity
If the system measures and evaluates multiple candidate sidelink relays, then path optimization is improved, but measurement time increases
Solution Approach 1:
The patent applies partial action by measuring and evaluating only the necessary parameters for handover decision-making rather than comprehensively analyzing all possible connection attributes. The terminal measures signal quality metrics for candidate sidelink relays and reports to the network, which then determines whether handover is beneficial, avoiding unnecessary measurement of all possible connection parameters.
Data Source
AI summary
The present disclosure relates to: a communication technique merging IoT technology with a 5th generation (5G) or 6th generation (6G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system, such as long term evolution (LTE); and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security- and safety-related services, and the like) on the basis of 5G communication technology and IoT-related technology. According to various embodiments of the present disclosure, provided are a method and a device for processing connection mode mobility of a terminal if a terminal can access a network through a direct connection with a base station or a connection with the base station through a sidelink relay in a wireless communication system.