PIoT Tag Positioning Reference Signals Without Complex Processing
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Solution Overview
Problem
Passive Internet of Things (PIoT) tag terminals have weak signal processing capabilities, limiting their positioning accuracy and preventing the application of conventional positioning methods.
Innovation Solution
A network device excites the tag terminal to send a positioning reference signal by providing configuration information, enabling the terminal to generate and transmit the signal without complex processing capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional positioning methods are applied to PIoT tag terminals, then positioning functionality is provided, but positioning accuracy deteriorates due to weak signal processing capability
Solution Approach 1:
Instead of requiring the tag terminal to perform complex signal processing algorithms for positioning, the patent inverts the approach by having the network device perform the positioning measurements and calculations. The tag terminal simply sends basic signals while the network device's reader performs downlink positioning measurements and transmits positioning information back to the terminal, achieving accurate positioning without complex processing at the terminal end.
Solution Approach 2:
The patent introduces the network device as an intermediary that bridges the capability gap between the simple tag terminal and the positioning system. The network device receives positioning reference signals from the terminal, performs complex signal processing and positioning calculations, then transmits positioning information to the terminal, enabling accurate positioning without requiring the terminal to have complex processing capabilities.
2Productivity
If the tag terminal actively sends positioning signals, then positioning reference signals can be transmitted, but the terminal requires complex signal processing capability which it does not have
Solution Approach 1:
The tag terminal performs self-service by automatically responding to reader queries with positioning reference signals without requiring complex processing. The terminal uses its basic transmission capability to send signals that the reader can use for positioning, achieving signal transmission functionality without complex processing requirements.
Data Source
AI summary
A communication method and a related apparatus are provided, to excite a first apparatus to send a positioning reference signal, so as to position the first apparatus based on the positioning reference signal, and meet a requirement for positioning the first apparatus. The method includes: A first apparatus receives first information from a network device, where the first information is used to excite the first apparatus to send the positioning reference signal. The first apparatus sends the positioning reference signal based on the first information.