Cell Coverage Indication Transmission for Wireless Networks
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Solution Overview
Problem
In wireless communication systems, particularly in LTE networks, there is a challenge in efficiently managing cell coverage and handover processes due to the dynamic nature of active antenna systems, which can lead to confusion and inefficiencies when cells are split, merged, or removed, affecting network capacity and user experience.
Innovation Solution
A method and apparatus for transmitting indications of cell coverage changes, such as cell split, merge, or removal, between eNodeBs in an active antenna system, allowing for efficient planning and notification of these changes to neighboring eNodeBs, thereby optimizing network operations and preventing handover failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cell coverage changes (split, merge, removal) are implemented dynamically in active antenna systems, then network capacity and flexibility are improved, but handover failures and communication instability occur
Solution Approach 1:
The system performs preliminary actions by notifying neighboring eNodeBs of upcoming cell coverage changes (split, merge, removal) before the actual changes occur. This advance notification allows neighboring cells to prepare for potential handovers, ensuring seamless transitions and preventing handover failures that would otherwise result from sudden cell configuration changes.
2Reliability
If cell coverage information is transmitted to neighboring eNodeBs, then handover failures are prevented, but network signaling overhead increases
Solution Approach 1:
The invention extracts only the essential cell coverage change information (notification messages indicating cell split, merge, or removal) and transmits this condensed data to neighboring eNodeBs. By extracting and transmitting only the critical notification elements rather than complete cell configuration details, the system prevents handover failures while minimizing signaling overhead.
3Productivity
If frequent cell management updates are performed, then network capacity is improved, but system complexity and processing load increase
Solution Approach 1:
The system performs preliminary notifications to neighboring eNodeBs about upcoming cell management changes (split, merge, removal) before executing the actual changes. This preliminary action allows the network to prepare for capacity changes without requiring complex real-time coordination during the actual cell modifications, thereby improving network capacity while controlling system complexity.
Data Source
AI summary
A method for receiving, by a first base station, coverage modification information in a wireless communication system, includes receiving, by the first base station, the coverage modification information which informs the first base station that modifying at least one cell managed by a second base station is planned, from the second base station, wherein the at least one cell managed by the second base station is modified by the second base station, after the second base station transmits the coverage modification information to the first base station.