AI Narrow Beam Determination from Reliable Wide Beam Sweeps
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Solution Overview
Problem
In wireless communications systems, the process of beam sweeping for determining optimal narrow beams can be time-consuming and energy-intensive, especially in rapidly changing signal propagation environments, leading to significant delays in initial access and handover processes.
Innovation Solution
A method and terminal that utilize a segmented wide beam sweep with reduced resolution, followed by selective further processing of high-reliability wide beams using artificial intelligence (AI) to predict and determine narrow beams, reducing the need for additional sweeping and minimizing time and energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a terminal sweeps a plurality of wide beams and determines narrow beams through conventional beam sweeping, then the reliability of beam determination is improved, but the time delay and energy consumption increase significantly
Solution Approach 1:
The patent segments the beam sweeping process into two stages: first sweeping a plurality of wide beams to obtain initial measurement results, then selectively determining narrow beams based on the reliability of these wide beam results. This segmentation allows the system to avoid complete narrow beam sweeping in all cases, thereby reducing time delay while maintaining reliability through selective processing of high-confidence wide beam results
Solution Approach 2:
The patent performs preliminary action by sweeping wide beams first to obtain measurement results before committing to full narrow beam sweeping. By evaluating the reliability of wide beam results in advance, the system can make informed decisions about whether additional narrow beam sweeping is necessary, thus preventing unnecessary time consumption while ensuring reliable beam determination when needed
2Measurement precision
If a terminal sweeps a plurality of wide beams and determines narrow beams through conventional beam sweeping, then the accuracy of narrow beam selection is improved, but the energy consumption increases
Solution Approach 1:
The patent applies partial action by performing wide beam sweeping for all directions but only determining narrow beams for directions where wide beam results meet reliability thresholds. This partial processing approach maintains measurement precision for selected narrow beams while avoiding the excessive energy consumption of complete narrow beam sweeping across all directions
Solution Approach 2:
The patent changes the parameter of beam resolution from fine (narrow beams) to coarse (wide beams) for the initial sweeping phase, then selectively refines to narrow beams only when necessary. This parameter change strategy reduces energy consumption by using lower-resolution wide beam sweeping as a screening mechanism before committing to energy-intensive narrow beam measurements
3Reliability
If a terminal uses high beam-forming gain antennas to compensate for power loss, then the signal reception quality is improved, but the time delay for beam sweeping increases
Solution Approach 1:
The patent segments the beam sweeping process into wide beam and narrow beam phases, allowing the system to use high beam-forming gain antennas during wide beam sweeping to maintain signal reception quality, then selectively apply narrow beam processing only when needed. This segmentation prevents the system from being forced to perform slow, high-gain narrow beam sweeping in all scenarios
4Measurement precision
If a terminal performs complete narrow beam sweeping to ensure accurate beam determination, then the beam selection accuracy is improved, but the productivity of the communication system decreases
Solution Approach 1:
The patent performs preliminary wide beam sweeping to gather measurement data before committing to time-consuming narrow beam sweeping. By evaluating the reliability of wide beam results in advance, the system can skip unnecessary narrow beam sweeping in many cases, thus maintaining beam selection accuracy when needed while dramatically improving productivity through avoided redundant sweeping operations
Solution Approach 2:
The patent applies partial action by performing narrow beam determination only for wide beams that meet reliability thresholds, rather than performing complete narrow beam sweeping. This partial processing maintains measurement precision for selected beams while improving overall system productivity by reducing the total number of beam measurements required
Data Source
AI summary
Provided are a terminal and method of determining a narrow beam. The method of determining a narrow beam includes sweeping a plurality of wide beams, calculating a plurality of wide beam measurement results respectively corresponding to the plurality of wide beams, calculating a reliability of the plurality of wide beam measurement results, and when the reliability of the plurality of wide beam measurement results is greater than a first threshold value, determining at least one narrow beam based on the plurality of wide beam measurement results without sweeping the at least one narrow beam.