Location-Based Mobility Measurement Activation in Wireless Networks
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Solution Overview
Problem
Current communications networks face challenges in efficiently managing mobility measurements, leading to reduced data throughput and suboptimal handover decisions due to fixed thresholds and widespread activation of mobility measurement gaps, which degrade performance in mixed macro- and small cell environments.
Innovation Solution
Implementing location-based mobility measurement activation mechanisms that dynamically adjust measurement areas based on position-dependent events, allowing network nodes to determine when and where mobility measurements should be performed, optimizing performance by turning measurements on or off depending on the relative position of wireless devices to cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If mobility measurement gaps are frequently configured to enable inter-frequency measurements, then handover decision accuracy is improved, but data throughput deteriorates due to resource occupation and scheduling restrictions
Solution Approach 1:
The patent applies dynamics by transitioning from fixed, frequent measurement gap configurations to dynamic, location-based activation. Measurement gaps are only configured when the wireless device is located in specific measurement areas where handover decisions are needed, allowing the system to adapt the measurement configuration based on real-time device location and network conditions, thereby reducing unnecessary measurement interruptions and maintaining higher throughput.
Solution Approach 2:
The patent applies local quality by creating measurement areas with specific spatial characteristics where mobility measurements are activated. Instead of uniformly applying measurement gaps across the entire network, the system identifies specific local regions (measurement areas) where handover decisions are critical and activates measurements only in those locations, allowing different parts of the network to have different measurement behaviors based on their specific requirements.
2Reliability
If mobility measurements are activated throughout the entire cell, then handover reliability is improved, but unnecessary measurements increase causing time loss and reduced efficiency
Solution Approach 1:
The patent applies local quality by creating measurement areas with specific spatial characteristics where mobility measurements are activated. Instead of uniformly applying measurement gaps across the entire network, the system identifies specific local regions (measurement areas) where handover decisions are critical and activates measurements only in those locations, allowing different parts of the network to have different measurement behaviors based on their specific requirements.
Solution Approach 2:
The patent applies dynamics by transitioning from fixed, frequent measurement gap configurations to dynamic, location-based activation. Measurement gaps are only configured when the wireless device is located in specific measurement areas where handover decisions are needed, allowing the system to adapt the measurement configuration based on real-time device location and network conditions, thereby reducing unnecessary measurement interruptions and maintaining higher throughput.
3Device complexity
If fixed thresholds are used for mobility measurement activation, then system complexity is reduced, but adaptability to position-dependent events deteriorates
Solution Approach 1:
The patent applies self-service by enabling the network to automatically determine and configure measurement areas based on device location and network conditions. The system autonomously identifies when and where mobility measurements are needed by monitoring device position and comparing it against defined measurement area criteria, eliminating the need for complex manual configuration while adapting to various scenarios without requiring sophisticated external control.
Solution Approach 2:
The patent applies dynamics by transitioning from fixed, frequent measurement gap configurations to dynamic, location-based activation. Measurement gaps are only configured when the wireless device is located in specific measurement areas where handover decisions are needed, allowing the system to adapt the measurement configuration based on real-time device location and network conditions, thereby reducing unnecessary measurement interruptions and maintaining higher throughput.
Data Source
AI summary
There is provided mechanisms for location based mobility measurement activation. A method is performed by a network node. The network node is configured to provide network access in a first cell. The method comprises determining, according to information of at least one measurement area, whether wireless devices are to perform mobility measurements for a possible handover to another network node or not. Each of the at least one measurement area has a dynamically changeable size. The size depends on position dependent events of the wireless devices in the first cell. The method comprises providing mobility measurement activation instructions to the wireless devices in the first cell in response thereto.