Terminal Positioning Assistance for Radio Link Degradation
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Solution Overview
Problem
Existing positioning technologies for terminal apparatuses using radio links with reference apparatuses do not effectively address degradation in radio link quality, leading to potential failures and inefficiencies in positioning accuracy and reliability.
Innovation Solution
The terminal apparatus detects degradation in radio link quality and transmits positioning assistance information via sidelink communication to other terminal apparatuses, enabling pre-emptive actions to mitigate potential failures and improve positioning accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If positioning is performed using radio link with reference apparatus, then positioning capability is provided, but radio link quality degradation leads to positioning failure or reduced accuracy
Solution Approach 1:
The terminal apparatus performs preliminary actions by detecting radio link quality degradation and transmitting positioning assistance information to other terminal apparatuses before actual positioning failure occurs. This allows receiving terminals to take pre-emptive measures such as switching to alternative reference apparatus or adjusting positioning algorithms, thereby maintaining positioning reliability despite radio link degradation.
Solution Approach 2:
The system implements feedback by having terminal apparatuses monitor and detect radio link quality between themselves and reference apparatuses, then communicate this quality information to other terminals via sidelink communication. This feedback loop enables the network to respond to degradation conditions and maintain positioning service reliability.
2Measurement precision
If positioning assistance information is transmitted via sidelink communication, then positioning accuracy is improved through pre-emptive actions, but additional communication overhead and system complexity are introduced
Solution Approach 1:
Terminal apparatuses perform self-service by autonomously detecting radio link quality degradation and generating positioning assistance information without requiring complex network control. Each terminal independently monitors its own radio link conditions and communicates relevant information to peers, reducing the need for centralized complexity while improving positioning accuracy through distributed intelligence.
Data Source
AI summary
A terminal apparatus comprising means for: positioning the terminal apparatus in a first positioning session using a radio link with at least a reference apparatus; detecting degradation in radio link quality of the radio link between the terminal apparatus and the reference apparatus; transmitting positioning assistance information, via sidelink communication, to at least another terminal apparatus in dependence upon the detected degradation in radio link quality of the radio link between the terminal apparatus and the reference apparatus, wherein the positioning assistance information is indicative of at least a degradation in the radio link quality of the radio link between the terminal apparatus and the reference apparatus.