UE Downlink Positioning Capability for Simultaneous Signal Processing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems, particularly 5G networks, face challenges in efficiently utilizing positioning methods and frequency bands for simultaneous processing of multiple positioning signals, leading to inefficiencies in power usage and location determination of user equipment.
Innovation Solution
User equipment (UE) is equipped with the capability to send a capability indication for simultaneous processing of multiple positioning methods and frequency bands, allowing it to determine position information using combinations such as DL-TDOA, AoD, and multi-RTT, and report this information to a network entity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE processes multiple positioning signals simultaneously using multiple positioning methods, then the positioning accuracy and capability are improved, but the power consumption increases
Solution Approach 1:
The UE dynamically selects and configures positioning method combinations based on capability indications, allowing flexible adjustment between processing multiple positioning methods simultaneously (higher accuracy) or sequentially (lower power consumption) depending on current operational requirements and power availability
Solution Approach 2:
The system changes the parameter of positioning method configuration by providing capability indications that specify which positioning methods can be processed simultaneously, enabling the network to optimize the balance between positioning accuracy and power consumption based on reported UE capabilities
2Adaptability or versatility
If the UE supports multiple positioning method combinations, then the adaptability and versatility of positioning are improved, but the device complexity increases
Solution Approach 1:
The positioning capability is segmented into discrete capability indications for different positioning method combinations, allowing the UE to report specific supported combinations (e.g., DL-TDOA with AoD, or multi-RTT with AoA) rather than requiring support for all possible combinations, thus managing complexity while maintaining versatility
Solution Approach 2:
The UE processor is designed with multi-functionality to handle multiple positioning method combinations, where a single processing framework can accommodate different positioning methods (DL-TDOA, AoD, multi-RTT, AoA) by configuring them according to capability indications, reducing the need for separate dedicated processing paths for each method
3Loss of information
If the UE reports detailed capability indications for positioning methods, then the signaling efficiency is improved, but the information processing overhead increases
Solution Approach 1:
The capability indication mechanism extracts only the essential positioning method combination information that the UE supports, rather than transmitting complete detailed capability sets, allowing the network to obtain sufficient information for optimization without excessive signaling overhead
Data Source
AI summary
A user equipment (UE) includes: a transceiver configured to receive positioning signals; a memory; and a processor, communicatively coupled to the transceiver and the memory, configured to: send, via the transceiver to a network entity, a capability indication that includes a first positioning-method indication indicating that the processor supports simultaneous processing of a first combination of positioning methods; and simultaneously process one or more first positioning signals in accordance with the first combination of positioning methods to determine first position information for the UE.