Radio Resource Management via Mobility Sensor Data
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Solution Overview
Problem
Current radio resource management in public land mobile networks relies on rough estimates of user equipment mobility based on radio cell reselection frequency, leading to inappropriate allocation of resources and inefficient use of frequencies, especially in low-frequency ranges and within radio cells.
Innovation Solution
Implementing a mobility detecting sensor module in user equipment to calculate and report mobility status with higher granularity, allowing for precise determination of speed and velocity, enabling optimized radio resource allocation and management by broadcasting more precise parameter sets and adapting to changes in motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If mobility status is determined based on radio cell reselection frequency, then the network can allocate radio resources according to mobility modes, but the measurement precision of user equipment speed is insufficient leading to rough estimation only
Solution Approach 1:
The patent introduces a mobility detection module as an intermediary component that bridges the gap between radio cell reselection events and actual mobility status. This module processes multiple parameters including reselection frequency, time stamps, and location information to calculate precise speed and mobility status, transforming rough estimates into accurate measurements without requiring direct complex sensor integration
Solution Approach 2:
The patent replaces direct mechanical sensor-based mobility detection with a computational approach using radio network measurements. Instead of relying on physical sensors in the user equipment, the system substitutes a calculation-based mobility detection mechanism that derives speed and mobility status from radio cell reselection data, time information, and network measurements
2Productivity
If scaling factors are applied to mobility parameters based on rough mobility estimation, then radio resource allocation can be automated, but misallocation occurs for significant numbers of user equipments
Solution Approach 1:
The patent implements dynamic mobility status determination that continuously updates mobility mode classifications based on real-time measurements of radio cell reselection frequency and timing. Instead of static categorization, the system dynamically adjusts mobility status (low speed, normal speed, high speed) according to current movement conditions, ensuring accurate and timely radio resource allocation that adapts to changing user equipment mobility patterns
Solution Approach 2:
The patent establishes a feedback mechanism where the network continuously monitors radio cell reselection events, calculates mobility status, and uses this information to adjust radio resource allocation parameters. The system feeds back mobility status information to the radio resource management function, which then optimizes parameter settings such as frequency selection and measurement configurations based on the determined mobility mode, creating a closed-loop system that improves allocation accuracy over time
3Area of stationary object
If mobility measurement is based on radio cell change frequency, then network can manage radio resources in active mode, but mobility within a single radio cell is not covered
Solution Approach 1:
The patent segments the mobility measurement process into multiple independent measurement dimensions: radio cell reselection frequency, time stamp analysis, location information changes, and signal strength variations. By dividing the overall mobility assessment into these separate measurable components, the system can detect mobility events at different granularities including movements within single cells, providing both broad area coverage and fine-grained measurement precision simultaneously
Data Source
Figure 1
AI summary
The invention relates to a method for enhanced radio resource management in a public land mobile network comprising at least one user equipment, wherein the user equipment comprises a mobility detecting sensor module and a memory means, wherein the mobility detecting sensor module generates a previous motion information and a current motion information, the current motion information being indicative of a current horizontal scalar acceleration value and/or of a current horizontal scalar velocity of the user equipment related to a current point in time or a current time interval, the previous motion information being stored in the memory means and indicative of a previous horizontal scalar acceleration value and/or of a previous horizontal scalar velocity of the user equipment related to a previous point in time or a previous time interval, wherein the previous point in time is prior to the current point in time or wherein the previous time interval is prior to the current time interval, wherein a mobility status update information, indicative of the current motion information, is able to be transmitted by the user equipment to the public land mobile network, wherein the mobility status update information is transmitted, by the user equipment, to the public land mobile network at least in case of a discrepancy between the current motion information and the previous motion information.