Non-connected Uplink Positioning for Wireless Terminals
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Solution Overview
Problem
In communication systems, terminal devices must frequently switch between connected and non-connected states for location updates, leading to increased power consumption and signaling loads, which goes against energy conservation.
Innovation Solution
A non-connected-state uplink positioning method where terminal devices receive configuration information indicating uplink positioning resources in the connected state, allowing them to send positioning signals in the non-connected state, enabling location determination without re-entering the connected state, thus reducing power consumption and signaling loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the terminal device enters the connected state for positioning, then positioning accuracy is improved, but power consumption increases
Solution Approach 1:
The network device pre-configures uplink positioning resources for the terminal device before it enters non-connected state. This preliminary configuration enables the terminal to perform positioning in non-connected state without needing to re-enter connected state, thus maintaining positioning accuracy while reducing power consumption from frequent state transitions
2Reliability
If the terminal device switches between connected and non-connected states for location updates, then positioning functionality is maintained, but signaling load increases
Solution Approach 1:
The network device configures uplink positioning resources in advance before the terminal enters non-connected state. This preliminary configuration eliminates the need for signaling exchanges when the terminal needs to update location in non-connected state, thereby maintaining positioning functionality while reducing signaling load
Solution Approach 2:
The patent extracts the positioning functionality from the connected state requirement. By separating positioning signal transmission from the connected state dependency, the terminal can perform positioning independently in non-connected state, removing the harmful signaling load associated with state transitions
Data Source
AI summary
Embodiments of this application disclose a non-connected-state uplink positioning method and devices. The method includes receiving first configuration information. The first configuration information is used to indicate a first uplink positioning resource when the terminal device is in a non-connected state. The method further includes when the terminal device enters the non-connected state, sending a first uplink positioning signal via the first uplink positioning resource, so that a positioning server can determine a location of the terminal device according to measurement information in the first uplink positioning signal.