RAN Coverage Area Scaling Based on WCD Velocity
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Solution Overview
Problem
The excessive use of wireless air interface resources in simultaneous communication between a wireless communication device (WCD) and a radio access network (RAN) can lead to deleterious impacts on resource utilization, particularly when the WCD is stationary or engaged in non-real-time calls, where the benefits of simultaneous communication are minimal.
Innovation Solution
The RAN determines the velocity and geographical location of the WCD to adjust the number of wireless coverage areas used for communication, reducing the extent of simultaneous communication when the WCD is stationary or engaged in non-real-time calls, and increasing it when the WCD is in motion or handling real-time calls, thereby optimizing resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the RAN communicates with the WCD substantially simultaneously via multiple wireless coverage areas, then the reliability of communication is improved, but the wireless air interface resources are excessively consumed
Solution Approach 1:
The patent dynamically adjusts the number of wireless coverage areas used for simultaneous communication based on WCD velocity measurements. When the WCD is stationary or moving slowly, fewer coverage areas are used; when the WCD is moving quickly, more coverage areas are engaged. This dynamic adaptation resolves the contradiction by matching resource allocation to actual mobility needs.
Solution Approach 2:
The system changes the parameter of the number of active wireless coverage areas based on measured velocity thresholds. By monitoring velocity and adjusting the count of simultaneous communication channels accordingly, the system optimizes the balance between communication reliability and resource consumption.
2Reliability
If the RAN uses multiple wireless coverage areas for simultaneous communication, then the call quality for mobile WCD is improved, but the resource utilization of the RAN deteriorates
Solution Approach 1:
The system dynamically scales the number of simultaneous communication channels based on real-time velocity measurements. High-velocity WCDs receive more coverage areas for better call quality, while low-velocity WCDs use fewer channels, preserving resource utilization. This dynamic approach resolves the contradiction between call quality and resource efficiency.
Solution Approach 2:
The patent adjusts the parameter of active coverage area count according to velocity thresholds. By changing this parameter based on mobility conditions, the system achieves high call quality for mobile users while maintaining good overall resource utilization across the network.
3Productivity
If the RAN communicates with the WCD via a small number of wireless coverage areas, then the wireless resources are conserved, but the communication reliability for moving WCD deteriorates
Solution Approach 1:
The system dynamically increases the number of wireless coverage areas engaged for simultaneous communication when the WCD velocity exceeds certain thresholds. This ensures that mobile WCDs maintain reliable communication while stationary WCDs consume fewer resources, resolving the contradiction between resource efficiency and communication reliability.
Solution Approach 2:
The patent changes the parameter of active coverage area count based on velocity measurements. When velocity thresholds are exceeded, the system increases the number of simultaneous communication channels, ensuring reliable communication for mobile users while maintaining resource efficiency for stationary users.
Data Source
AI summary
A radio access network (RAN) may base the number of wireless coverage areas that it uses for substantially simultaneous communication with a wireless communication device (WCD) on the location and/or movement of the WCD. Thus, for instance, if the WCD has been in a particular geographical location for a period of time, the RAN may use fewer wireless coverage areas when communicating with the WCD. But, if the WCD has not been in any particular geographical location for the period of time, the RAN may use more wireless coverage areas when communicating with the WCD. Similarly, if the WCD is moving at a speed at or below a given velocity, the RAN may use fewer wireless coverage areas when communicating with the WCD. But, if the WCD is moving at a speed above the given velocity, the RAN may use more wireless coverage areas when communicating with the WCD.