Acoustic Receiver Positioning for Multi-Channel UE Location Measurement
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately and efficiently measuring the position of user equipment (UE) in scenarios involving vehicle-to-everything (V2X) communication, particularly in next-generation radio access technologies like NR, where precise location information is crucial for advanced driving, vehicle platooning, and remote driving.
Innovation Solution
The method involves using a plurality of acoustic receivers to receive acoustic signals, selecting a reference acoustic receiver for each channel, calculating reception time differences, and compensating for position offsets to measure the UE's position, with options for noise strength measurement and geomagnetic sensor integration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple acoustic receivers are used to improve positioning accuracy, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent divides the acoustic signal reception function across multiple receivers (first acoustic receiver, second acoustic receiver, third acoustic receiver) positioned at different locations within the UE. Each receiver captures signals from multiple channels independently, and the processor combines these segmented measurements to calculate positioning parameters, achieving improved accuracy without requiring a single complex receiver system
Solution Approach 2:
The patent transitions from using a single acoustic receiver to utilizing spatial distribution of multiple receivers in three-dimensional space. By positioning receivers at different locations and using channels at different frequencies, the system creates a multi-dimensional measurement space that enables more accurate trilateration and positioning calculation
2Measurement precision
If multiple channels are used for acoustic signals to improve positioning reliability, then measurement precision is improved, but processing complexity increases
Solution Approach 1:
The patent segments the acoustic signal processing by channel, with the processor independently handling first channel signals, second channel signals, and third channel signals. Each channel's signals are processed through separate time difference calculations and reference signal identifications, allowing manageable complexity through modular processing
Solution Approach 2:
The patent performs preliminary actions by identifying reference signals and calculating time differences for each channel before final positioning computation. The processor identifies reference signals from multiple channels and pre-calculates time differences between channels, preparing data structures that simplify the final positioning calculation
3Measurement precision
If reference signal identification is performed for multiple channels to improve positioning accuracy, then measurement precision is improved, but time consumption increases
Solution Approach 1:
The patent performs reference signal identification as a preliminary action before time difference calculation. By first identifying which signals serve as references across multiple channels and pre-organizing the time difference data structures, the system prepares all necessary information in advance, reducing computational time during the actual positioning calculation phase
Solution Approach 2:
The patent segments the reference signal identification process by channel, handling first channel reference signals, second channel reference signals, and third channel reference signals independently. This segmentation allows parallel processing and reduces overall time consumption compared to a monolithic approach
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for accurate and efficient positioning of UE, enhancing the reliability and latency-sensitive V2X communication by improving the measurement of UE locations.
Implementation Method 1
receiving a plurality of acoustic signals for a plurality of channels by using each of a plurality of acoustic receivers
Implementation Method 2
calculating a reception time difference between two channels based on a reception time of an acoustic signal at the reference acoustic receiver for each channel
Data Source
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AI summary
According to various embodiments, disclosed are a method by which a user equipment measures a location in a wireless communication system, and an apparatus therefor. Disclosed are the method and the apparatus therefor, the method comprising the steps of: receiving a plurality of sound wave signals for a plurality of channels by respectively using a plurality of sound wave receivers; selecting a reference sound wave receiver for each of the plurality of channels from among the plurality of sound wave receivers; and calculating a reception time difference between two channels on the basis of a sound wave signal reception time of the reference sound wave receiver for each channel and measuring the location of the user equipment on the basis of the reception time difference.