GNSS Processor Activation via Radio Link Failure Criteria
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Solution Overview
Problem
In mobile communication networks, activating a GNSS processor for stand-alone location measurements in areas with radio link failures can be time-consuming, reducing measurement accuracy and increasing power consumption, as the processor may activate after the UE has moved away from the trouble spot.
Innovation Solution
Configuring UE with radio link failure criteria to activate the GNSS processor before reaching a trouble spot and deactivate upon exiting, using specified frequencies for activation and deactivation to ensure timely and efficient location measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the GNSS processor is activated only when radio link failure is detected, then power consumption is reduced, but measurement accuracy deteriorates because the processor activates after the UE has moved away from the trouble spot
Solution Approach 1:
The system performs preliminary actions by activating the GNSS processor before the UE actually reaches the trouble spot. Configuration information including radio link failure criteria is provided to the UE in advance, enabling the processor to be activated proactively when criteria are met, rather than reactively after failure detection. This ensures location measurements are captured at the correct position without delay.
2Measurement precision
If the GNSS processor is activated continuously to ensure accurate location measurements, then measurement accuracy is improved, but power consumption increases
Solution Approach 1:
The system implements dynamic control of the GNSS processor by transitioning between active and inactive states based on real-time evaluation of radio link failure criteria. The processor is activated only when configuration criteria are satisfied and deactivated when criteria are no longer met, creating an adaptive, dynamic operation mode that optimizes the balance between measurement accuracy and power consumption rather than using a static continuous activation approach.
Solution Approach 2:
The system changes operational parameters by using different radio link failure criteria thresholds to control processor activation. Configuration information includes specific criteria parameters that determine when activation occurs, allowing flexible adjustment of activation conditions to optimize performance based on network requirements and UE capabilities.
3Reliability
If the GNSS processor activation is delayed until radio link failure is confirmed, then false activations are reduced, but measurement timing accuracy deteriorates
Solution Approach 1:
The system uses preliminary evaluation of radio link failure criteria to trigger processor activation before actual failure occurs. By monitoring criteria in advance and activating proactively when thresholds are met, the system maintains both reliability through criterion-based control and timing accuracy through early activation, resolving the contradiction between these two requirements.
Data Source
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AI summary
Methods and apparatus to activate location measurements are disclosed. An example method disclosed herein for a wireless device to activate location measurements comprises receiving configuration information including one or more radio link failure criteria for activating a processor for performing stand-alone location measurements, and operating the processor in accordance with the configuration information.