Millimeter Wave Signal Angle Measurement Using Array Antennas
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Solution Overview
Problem
There is a lack of effective measurement methods for determining the angles of arrival and departure of millimeter wave signals and correlating these angles within the range covered by a base station, which hinders efficient communication.
Innovation Solution
A measurement system comprising two measurement devices and a controller, utilizing omnidirectional and array antennas, magnetometers, and processors to determine angles of arrival and departure of millimeter wave signals through a series of testing instructions and feedback signals, enabling quick establishment of communication links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional measurement methods are used for millimeter wave signals, then existing communication protocols can be maintained, but angle of arrival and departure measurement capability is lost
Solution Approach 1:
The measurement system is segmented into two separate measurement devices, each equipped with omnidirectional and array antennas. This segmentation allows each device to independently measure angles of arrival and departure without requiring a single complex centralized system, thereby achieving angle measurement capability while managing system complexity through distributed measurement functions.
Solution Approach 2:
A controller is introduced as an intermediary component that coordinates the operation of the two measurement devices. The controller manages the testing instructions and feedback signals between devices, enabling angle measurement functionality while centralizing the complexity of measurement coordination in a dedicated control unit rather than distributing it across all measurement components.
2Productivity
If angle measurement is implemented without correlation capability, then measurement simplicity is maintained, but communication efficiency within base station range deteriorates
Solution Approach 1:
The system implements feedback mechanisms where measurement devices send feedback signals containing angle information to the controller. This feedback loop enables the correlation of angle measurements between arrival and departure, allowing the system to establish communication links efficiently by using measured angle data to optimize signal routing and connection establishment within the base station coverage area.
Solution Approach 2:
The measurement devices perform preliminary angle measurements of arrival and departure before actual communication establishment. By conducting these measurements in advance and correlating the angle data through the controller, the system prepares optimal communication paths beforehand, thereby speeding up the subsequent communication establishment process without adding significant complexity to the core communication protocol.
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 solution allows for the quick establishment of communication links by determining optimal angles of arrival and departure, enhancing communication efficiency between devices.
Implementation Method 1
controls an array antenna to receive the millimeter wave signal at a determined angle of arrival
Implementation Method 2
controls an array antenna to send the millimeter wave signal at different angles of departure
Implementation Method 3
Each of the at least two measurement devices includes an omnidirectional antenna, an array antenna, a magnetometer, and a processor
Data Source
AI summary
A measurement method for measuring millimeter wave (mm-wave) signal and device using the method includes a first measuring device receiving a mm-wave signal by an array antenna at a first angle of arrival corresponding to a position of the first measuring device, the mm-wave signal being sent by a second measuring device at a first angle of departure. Thereby, a downlink between the first measuring device and the second measuring device can be established quickly. From a certain ascertainable location, the first measurement device sends the mm-wave signal by the array antenna at a second angle of departure, and the second measurement device receives the mm-wave signal at a second angle of arrival corresponding to the position of the first measuring device, thus, an uplink between the first measuring device and the second measuring device can be established quickly.