Vehicular Relay Node Adaptive Neighbor Cell Measurement Configuration
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Solution Overview
Problem
Current cellular communication systems face challenges in maintaining Quality-of-Service (QoS) for mobile users inside vehicles due to changing Radio Frequency (RF) conditions and penetration losses, leading to severe degradation of service.
Innovation Solution
A relay node is used to improve cellular coverage within vehicles by establishing an aggregated connection via a wireless backhaul link, with a determination module to adapt neighbor cell measurements based on vehicle movement, reducing unnecessary handover procedures and optimizing measurement cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If permanent sniffing procedure is used to detect neighbor cell relations in vehicular relay nodes, then handover readiness is improved, but power consumption and system efficiency deteriorate due to continuous measurements regardless of vehicle state
Solution Approach 1:
The patent applies dynamics by making the measurement configuration adaptive to the vehicle's mobility state. The system dynamically adjusts between continuous measurements for stationary vehicles and reduced measurements for moving vehicles, optimizing the balance between handover readiness and power consumption based on real-time vehicle state detection.
Solution Approach 2:
The system changes the measurement parameters (frequency, continuity) based on the vehicle's mobility state. When the vehicle is detected as moving, the system reduces measurement frequency or suspends measurements, thereby reducing power consumption while maintaining adequate handover capability for the specific context of vehicular mobility.
2Measurement precision
If continuous neighbor cell measurements are performed in moving vehicles, then measurement precision is maintained, but unnecessary handover procedures increase leading to system inefficiency
Solution Approach 1:
The system performs partial measurements rather than continuous full measurements. By adapting the measurement configuration to the vehicle's mobility state, the system performs measurements only when necessary (stationary or low-speed conditions), avoiding excessive measurements during high-speed movement where handover is less likely or less critical.
Solution Approach 2:
The measurement strategy dynamically adapts to vehicle motion state. The system transitions between different measurement modes based on detected mobility conditions, maintaining measurement precision when needed while improving system efficiency by reducing unnecessary measurements during vehicle movement.
3Reliability
If measurement cycles are activated continuously for all vehicles, then QoS is maintained for potential handovers, but power consumption increases unnecessarily for vehicles in motion where handover is not required
Solution Approach 1:
The system changes operational parameters (measurement cycle activation) based on vehicle mobility state. For moving vehicles where handover is not required, the system deactivates or reduces measurement cycles, thereby maintaining QoS for vehicles that need it while significantly reducing power consumption for vehicles in motion.
Solution Approach 2:
The system extracts and removes unnecessary measurement activities from the continuous operation. By identifying vehicles in motion where handover is not required, the system removes the measurement function for these specific cases, reducing overall power consumption while maintaining QoS for vehicles where measurements are still necessary.
Data Source
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AI summary
Embodiments provide an apparatus, a data server, a vehicle, a method, and a computer program for configuring neighbor cell measurements. The apparatus (10) is operable to configure neighbor cell measurements of a vehicular relay transceiver (100) in a mobile communication system (400). The relay transceiver (100) is operable in a vehicle for relaying information between a mobile transceiver (200) associated with the relay transceiver (100) and a base station transceiver (300) of the mobile communication system (400). The apparatus (10) comprises a determination module (12) operable to determine information related to a state of movement of the vehicle, and a controller module (14) operable to obtain a measurement configuration for measuring a signal quality of a neighbor cell of the relay station transceiver (100) based on the information related to the state of movement of the vehicle.