Repeater Beam Direction Selection Using Radar Object Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems, particularly in NR and LTE, face challenges in efficiently managing beam directions to avoid interference from objects that block or obstruct signal transmission.
Innovation Solution
A repeater system equipped with a beam manager performs an object detection process using radar techniques to determine optimal beam directions for signal retransmission, avoiding interference by detecting the location and proximity of objects through techniques like FM-CW radar, enabling precise beam selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beamforming is used to improve signal directionality and coverage, then communication quality is improved, but interference from obstructing objects cannot be avoided
Solution Approach 1:
The system performs object detection before beamforming signal transmission by sending detection signals in various directions and measuring reflected signals. This preliminary detection identifies objects that may obstruct or interfere with the intended beam path, allowing the system to adjust beam directions to avoid interference before communication signals are transmitted.
Solution Approach 2:
The system continuously monitors the environment by detecting reflected signals from objects and uses this feedback information to dynamically adjust beamforming directions. The object detection results feed back into the beam management system, enabling real-time optimization of beam paths to avoid newly detected obstructions while maintaining communication quality.
2Reliability
If object detection is performed to avoid interference, then signal transmission reliability is improved, but system complexity increases
Solution Approach 1:
The patent combines object detection functionality with the existing repeater and beam management system. The same antenna array used for beamforming is also used for object detection by transmitting detection signals and measuring reflections. This merging of functions avoids adding separate detection hardware, thereby reducing overall system complexity while still achieving reliable object detection.
Solution Approach 2:
The beam manager is designed to perform multiple functions: both traditional beamforming for signal transmission and object detection through reflected signal analysis. This multi-functional approach allows a single system component to handle both communication and environmental sensing tasks, reducing the need for additional specialized devices and simplifying the overall system architecture.
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
The system effectively determines suitable beam directions to ensure uninterrupted and interference-free signal retransmission, enhancing communication quality and coverage.
Implementation Method 1
A repeater system equipped with a beam manager performs an object detection process using radar techniques to determine optimal beam directions for signal retransmission
Implementation Method 2
detecting the location and proximity of objects through techniques like FM-CW radar
Implementation Method 3
performs an object detection process using radar techniques to determine optimal beam directions
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for determining a spatial direction of a beam for retransmitting a wireless signal. A method that may be performed by a repeater includes receiving, at the repeater, a signal transmitted by a first node, the signal carrying data intended to be received by a second node. The method may also include determining, by the repeater, a beam direction for retransmitting the received signal to the second node, the beam direction determined based on an object detection process performed by the repeater. The method may also include transmitting, by the repeater to the second node, an amplified retransmission of the received signal using a beam having the determined beam direction.