UE Capability Indication for Positioning Server Adaptation
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Solution Overview
Problem
Current positioning measurement systems in LTE networks assume all User Equipments (UEs) are equipped with two receiver chains, leading to inaccurate or failed measurements when UEs have only one receiver chain, as they do not account for varying UE capabilities, resulting in insufficient time for positioning measurements.
Innovation Solution
The system notifies a positioning server of UE capability information, including the number of receiver chains, allowing it to configure appropriate positioning measurement settings, such as extended delays, for UEs with single receiver chains to ensure accurate measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If positioning measurement systems assume all UEs are equipped with two receiver chains, then positioning measurements can be performed using standard configurations, but measurement accuracy deteriorates when UEs have only one receiver chain
Solution Approach 1:
The system dynamically adapts positioning measurement configurations based on the UE's receiver chain capability. The positioning server receives capability information indicating the number of receiver chains and adjusts measurement parameters accordingly, allowing the system to optimize for single-receiver UEs while maintaining compatibility with dual-receiver UEs
Solution Approach 2:
The invention changes the measurement configuration parameters based on the UE's receiver chain capability. When a UE with single receiver chain is detected, the system modifies timing parameters and measurement opportunities to provide extended time for measurements, thereby maintaining measurement accuracy across different UE hardware configurations
2Device complexity
If standard positioning measurement configurations are used for all UEs, then system complexity remains low, but measurement reliability fails when UEs have single receiver chains
Solution Approach 1:
The system implements a feedback mechanism where the UE provides capability information about its receiver chain configuration to the positioning server. Based on this feedback, the positioning server automatically adjusts the measurement configuration, ensuring reliable measurements without requiring complex manual configuration or system redesign
Solution Approach 2:
The UE transmits capability information about its receiver chain configuration in advance before positioning measurements are performed. This preliminary action allows the positioning server to pre-configure appropriate measurement parameters, ensuring measurement reliability from the outset without adding complexity to the measurement process itself
Data Source
AI summary
Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for delivering UE capability indication to a positioning server in a wireless communication network. A user equipment (UE) or access note (AN) may notify a positioning server of UE capability information associated with positioning measurements so that the positioning server may determine corresponding positioning measurement configurations based on acknowledgement of such UE capability information in terms of the positioning measurement. Embodiments describe UE capability indications to a positioning server that may enable flexible deployment and integration of various types of UEs. Other embodiments may be described and claimed.