Single Frequency Network Base Station Activation
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Solution Overview
Problem
Current mobile networks experience significant signaling overhead and delays due to frequent handover procedures, especially for fast-moving devices, which limits their ability to benefit from small cell layers and increases resource consumption.
Innovation Solution
A method is implemented to configure a single frequency network by detecting the location of user equipment and dynamically activating or deactivating base stations based on their proximity, thereby reducing the need for handovers and optimizing resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequent handover procedures are implemented for fast-moving devices, then connection continuity is maintained, but signaling overhead and delays increase significantly
Solution Approach 1:
The patent merges multiple small cells into a Single Frequency Network (SFN) where all cells transmit the same content simultaneously on the same frequency. This combination allows user equipment to receive continuous service from multiple base stations without handover, eliminating handover delays while maintaining connection continuity for fast-moving devices
Solution Approach 2:
The patent implements dynamic activation and deactivation of base stations based on real-time user equipment location and movement patterns. By detecting UE location and predicting movement, the system dynamically adjusts which base stations are active, preventing unnecessary handovers while maintaining optimal connection quality
2Area of stationary object
If all base stations in the single frequency network are continuously activated, then coverage is maximized, but energy consumption increases
Solution Approach 1:
The patent employs dynamic base station activation and deactivation based on detected user equipment location and predicted movement patterns. Base stations are activated only when needed to serve current or future UE positions, and deactivated when not required, thereby maintaining adequate coverage while significantly reducing energy consumption compared to continuous activation
Solution Approach 2:
The system performs preliminary actions by predicting user equipment movement and proactively activating base stations before the UE arrives at their coverage areas. This predictive approach ensures seamless service continuity while avoiding the energy waste of keeping all base stations continuously active
3Loss of time
If location detection and dynamic configuration is implemented, then handover reduction is achieved, but system complexity increases
Solution Approach 1:
The patent implements a centralized controller that performs multiple functions including location detection, movement pattern analysis, base station activation/deactivation control, and transmission parameter configuration. This multi-functional approach reduces handovers while managing system complexity through a single coordinating entity rather than distributed complexity
Data Source
AI summary
A telecommunication system is provided comprising a Single Frequency Network, which enables the activation and respectively deactivation of base stations (SCn−SCn+3), each providing a radio cell such as a so-called Small Cell (SCn−SCn+3). Single Frequency Networks provide the advantage that no handover procedures are required for user equipment traversing several radio cells. The subject matter of the present invention provides means for a location based adaption of the transmission parameters for operating the Small Cells (SCn−SCn+3) in dependence of the location of the user equipment to be supplied.