Angle Positioning via Frequency-Beam Association
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Solution Overview
Problem
In high-frequency multi-carrier communication systems, the beam squint phenomenon causes inaccuracies in angle positioning due to the mismatch between beam direction and subcarrier frequency, leading to low angle obtaining accuracy and positioning accuracy.
Innovation Solution
A terminal device receives configuration information from a network device that includes association relationships between frequency information and beam information, allowing it to measure reference signals using different association relationships at various frequencies, thereby reducing beam direction offsets and improving measurement accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam scanning is used to obtain angle in high-frequency multi-carrier communication system, then the problem of unable to obtain angle based on phase difference is resolved, but beam squint phenomenon causes beam direction offset resulting in low angle obtaining accuracy
Solution Approach 1:
The patent changes the parameter of beam association from fixed to dynamic by introducing frequency-dependent association relationships. The network device configures multiple association relationships between beams and frequency information, and the terminal selects the appropriate association based on the actual subcarrier frequency, thereby compensating for beam squint effects and improving angle measurement accuracy
Solution Approach 2:
The patent introduces dynamic selection of beam association relationships based on frequency. Instead of using a single static beam association, the system dynamically selects from multiple pre-configured association relationships according to the actual operating frequency, making the beam direction adapt to frequency changes and reducing beam squint-induced errors
2Device complexity
If a single association relationship between beam and frequency is used, then device complexity is reduced, but angle positioning accuracy deteriorates due to beam direction offset
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple association relationships between beams and frequency information before actual angle measurement. The network device provides the terminal with a set of pre-defined associations, so that when beam squint occurs, the terminal can directly select from pre-prepared solutions without complex real-time calculations, balancing accuracy improvement with controlled complexity
Data Source
AI summary
This application provides an angle positioning method, apparatus, and device. The method includes: A terminal device receives configuration information from the network device, where the configuration information includes reference signal configuration information and information about an association between N sets of frequency information and M sets of beam information. Then, the terminal device receives a reference signal corresponding to the reference signal configuration information, to obtain a measurement result, where the measurement result is obtained by measuring the reference signal based on an association relationship between frequency information and beam information. Finally, the terminal device reports the measurement result to the network device.