Dynamic Conical Beam Tracking for Mobile Apparatus Handover Stability
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Solution Overview
Problem
Beam steering networks face challenges in maintaining continuous communication sessions with mobile apparatuses due to their movement, leading to interruptions and reduced bandwidth.
Innovation Solution
The implementation of conical scanning by base stations, which transmit a tracking beam rotating about a path centered on the mobile apparatus, using dynamic state information to adjust the radius of the path based on the mobile apparatus's velocity and acceleration, ensuring the beam remains focused on the moving device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a narrow radio beam is transmitted toward a mobile apparatus to provide high bandwidth communication, then communication bandwidth is improved, but communication reliability deteriorates when the mobile apparatus moves
Solution Approach 1:
The patent implements dynamic beam tracking by continuously adjusting the narrow radio beam direction to follow the mobile apparatus movement. The base station monitors the mobile apparatus position and dynamically steers the beam to maintain alignment, thus preserving high bandwidth communication while adapting to movement-induced position changes.
Solution Approach 2:
The system employs feedback mechanisms where the base station receives position information from the mobile apparatus and adjusts the beam direction accordingly. This closed-loop control ensures the narrow beam remains targeted on the moving apparatus, maintaining both communication reliability and bandwidth efficiency.
2Reliability
If the base station steers the narrow radio beam to track a moving mobile apparatus, then communication reliability is improved, but system complexity increases
Solution Approach 1:
The patent introduces position information as an intermediary element that facilitates beam steering without requiring complex direct tracking. The mobile apparatus provides its position coordinates to the base station, which then uses this information to calculate and adjust beam direction, simplifying the overall tracking system architecture.
Solution Approach 2:
The system replaces complex mechanical or hardware-based tracking mechanisms with signal-processing-based beam steering. By using electronic beamforming and position coordinate calculations, the system achieves reliable tracking through software and signal processing rather than complex physical mechanisms.
3Device complexity
If conical scanning is performed with a fixed radius to track the mobile apparatus, then device complexity is reduced, but measurement precision deteriorates when the apparatus moves at high velocity
Solution Approach 1:
The patent dynamically changes the conical scanning radius parameter based on the mobile apparatus velocity. When the apparatus moves at high velocity, the scanning radius is increased to maintain tracking precision, while at lower velocities the radius is reduced. This adaptive parameter adjustment maintains measurement precision without requiring overly complex fixed-radius systems.
Data Source
AI summary
A base station apparatus configured to control operation of a base station causes the base station to perform conical scanning of a mobile apparatus. The base station is configured to communicate via wireless communications using beamforming. A communication session between the base station and the mobile apparatus has been established, and the conical scanning of the mobile apparatus comprises transmitting a tracking beam that rotates about a path centered on a position associated with the mobile apparatus and characterized by a radius. The base station apparatus receives a dynamic state communication indicating a dynamic state of the mobile apparatus; determines, based at least on the dynamic state of the mobile apparatus, a new radius; and causes the base station to perform the conical scanning by transmitting the tracking beam that rotates about the path centered on the position associated with the mobile apparatus and characterized by the new radius.