Sensor-Assisted Beam Tracking for Millimeter Wave Wireless
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Solution Overview
Problem
Next-generation wireless communication systems, particularly those operating at millimeter wave frequencies, face challenges with high attenuation and susceptibility to blockages, which affect data transmission and reception, necessitating effective beam tracking and mobility management to maintain communication quality.
Innovation Solution
The implementation of sensor-assisted beam tracking and mobility operations in wireless apparatuses, utilizing inbuilt sensors and RF measurements to determine beam tracking events and adjust antenna configurations, as well as leveraging mobility history to optimize beam search and handover processes, ensuring continuous and high-quality communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beamforming techniques are used to counteract attenuation and provide directional communication, then data transmission reliability is improved, but device complexity increases due to antenna array configuration and beam management
Solution Approach 1:
The wireless device autonomously performs beam tracking by monitoring RF measurements and determining beam tracking events without continuous network control. The device self-manages antenna array configuration changes based on sensor-assisted beam tracking events, reducing network signaling overhead and operational complexity.
Solution Approach 2:
The system performs beam tracking proactively by monitoring sensor information and RF measurements to detect beam tracking events before communication quality degrades. This preliminary action allows the device to adjust antenna configurations in advance, maintaining reliable communication without reactive corrections.
2Reliability
If sensor-assisted beam tracking is implemented to dynamically adapt to orientation and displacement changes, then communication quality is maintained, but energy consumption increases due to continuous sensor monitoring and processing
Solution Approach 1:
The system performs beam tracking only when sensor-assisted beam tracking events are triggered by significant changes in sensor information or RF measurements. Instead of continuous tracking, the device applies partial action by monitoring continuously but acting only when necessary, reducing energy consumption while maintaining communication quality during critical transitions.
Solution Approach 2:
The system implements periodic beam tracking operations based on triggered events rather than continuous operation. Beam tracking is performed periodically when beam tracking events occur, allowing the device to conserve energy during stable communication conditions while maintaining quality when changes are detected.
3Productivity
If mobility operations are performed based on correlation with mobility history, then beam search efficiency is improved, but processing time increases due to historical data analysis
Solution Approach 1:
The system pre-processes and stores mobility history information including sensor data and RF measurements during normal operation. When beam search is needed, the pre-stored correlated data allows rapid retrieval and analysis, improving beam search efficiency without significant processing delays.
Solution Approach 2:
The system uses mobility history as a reference model to predict current beam conditions. By copying and comparing historical patterns rather than performing complete beam searches, the device improves efficiency by leveraging past experiences while minimizing current processing requirements.
Data Source
AI summary
Some aspects of the present disclosure provide systems and methods for utilizing information from inbuilt sensors of a wireless apparatus along with radio frequency (RF) measurements to assist and/or trigger a beam tracking operation. Some aspects of the present disclosure provide systems and methods for utilizing information available from inbuilt sensors of a wireless apparatus and RF measurements along with historical mobility information to assist a mobility operation such as an initial beam search, a neighbor beam search, and handovers.