L1 Beam Measurement Reporting for Low-Latency Inter-Cell Handover
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Solution Overview
Problem
Existing methods for cell switching are inefficient and particularly slow due to lengthy delay times in conventional cell switching procedures, necessitating improved methods for beam measurement and reporting to support seamless handovers in next-generation mobile communication systems.
Innovation Solution
A method involving layer 1 (L1) measurement and reporting is introduced, where a base station transmits RRC messages with cell configuration information to a terminal, enabling the terminal to perform L1 measurements and report back to the base station, facilitating efficient beam switching and handovers to neighbor cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional cell switching procedure is used, then cell switching can be performed, but delay time is long and efficiency is low
Solution Approach 1:
The patent applies preliminary action by having the terminal perform L1 measurements on neighbor cells in advance while still connected to the serving cell. The terminal measures and reports beam information for candidate cells before actual handover is needed, so that when cell switching is triggered, the measurement data is already available, significantly reducing the delay time required for measurement and decision-making during the handover process.
Solution Approach 2:
The patent implements feedback through the terminal reporting L1 measurement results back to the base station. The terminal measures beam parameters of neighbor cells and feeds this information back to the base station, which then uses this feedback to make informed handover decisions. This feedback mechanism enables efficient cell switching by providing real-time measurement data without requiring repeated measurement cycles.
2Productivity
If L1 measurement and reporting is implemented, then beam switching efficiency is improved, but measurement and reporting complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the measurement and reporting process into distinct functional components. The terminal is responsible for performing L1 measurements on beam parameters, while the base station handles the interpretation of measurement results and handover decisions. This segmentation of measurement and reporting functions simplifies the overall system complexity by assigning specific tasks to specific entities rather than requiring all components to handle every aspect of the measurement and decision-making process.
Data Source
AI summary
The present disclosure relates to: a communication technique that integrates a 5G communication system for supporting a higher data transmission rate than a 4G system with IoT technology; and a system therefor. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology. The present disclosure discloses a method and device for measurement setup and reporting for inter-cell movement.