Virtual Base Station Merging for Handover Reduction
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Solution Overview
Problem
Mobile communication systems face inefficiencies in handovers between base stations due to the need for continuous switching and the complexity of managing multiple base stations, leading to increased potential handovers and complexity in terminal communication.
Innovation Solution
A method is introduced to form a virtual base station by grouping candidate base stations based on channel quality measurements, synchronizing radio frame structures and transmission times, and using a common identifier, allowing the mobile terminal to communicate as if with a single base station, while reducing handovers and simplifying communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple base stations are used to increase coverage area, then the coverage area is improved, but the number of handovers required increases
Solution Approach 1:
Multiple base stations are merged into a single virtual base station entity. The base stations synchronize their radio frame structures and transmission times, and use a common identifier, so that the mobile terminal perceives them as one unified base station. This combining approach allows the coverage area to be extended while avoiding the need for handovers between individual base stations.
2Area of stationary object
If multiple base stations are used to extend coverage, then the coverage area is improved, but the complexity of terminal communication increases
Solution Approach 1:
The multiple base stations are combined into a virtual base station that presents a unified interface to the mobile terminal. By using a common identifier and synchronized transmissions, the terminal does not need to manage multiple separate base station connections, thereby reducing communication complexity while maintaining extended coverage.
Solution Approach 2:
The virtual base station acts as an intermediary between the multiple physical base stations and the mobile terminal. It coordinates the transmissions from multiple base stations and presents a single coherent signal to the terminal, simplifying the terminal's communication tasks while enabling extended coverage through the coordinated base station group.
3Adaptability or versatility
If base stations operate independently, then the system flexibility is improved, but the number of handovers increases
Solution Approach 1:
Base stations that form a virtual base station are synchronized in terms of radio frame structure and transmission time, and use a common identifier. This merging approach allows the system to maintain flexibility in base station deployment and configuration while eliminating handovers within the virtual base station group, as the mobile terminal perceives them as a single entity.
Data Source
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AI summary
The invention relates to a method for forming a virtual base station in a mobile communication system, the method comprising: receiving measurements of a set of channel quality between a mobile terminal and a set of base stations; forming a virtual base station by grouping candidate base stations of the set of base stations according to the measured channel quality; synchronizing a radio frame structure and a radio frame transmission time with the candidate base stations forming the virtual base station; transmitting the radio frame structure on the synchronized transmission time to the mobile terminal, wherein the radio frame structure is transmitted by each candidate base station of the virtual base station; receiving data from the mobile terminal, wherein the data is received by each candidate base station forming the virtual base station.