UE-Based Cellular Positioning Without Network Feedback
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Solution Overview
Problem
Existing positioning techniques for devices rely heavily on network signaling, which can compromise availability and efficiency of services, leading to inconsistent user experiences and resource occupancy.
Innovation Solution
UE-based autonomous device positioning methods that allow devices to determine their location using measurements from access network signals without requiring network feedback, leveraging techniques such as multilateration, angle of arrival, and timing advance estimation, and utilizing existing E-CID measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network-based positioning techniques are used, then positioning services can be provided with network support, but network resources are occupied and service availability is compromised
Solution Approach 1:
The UE performs autonomous positioning operations using its own processing capabilities. The device receives positioning reference signals from base stations, performs measurements (RSSI, RSTD, timing advance), and calculates its position independently without requiring network feedback or intervention, thereby eliminating network resource occupancy while maintaining service availability
Solution Approach 2:
The positioning function is extracted from the network and transferred to the UE. The network only provides reference signals, while all measurement and calculation operations are performed locally at the UE, separating the positioning workload from network resources
2Productivity
If network signaling is used for positioning, then positioning operations can be coordinated, but latency increases and efficiency decreases
Solution Approach 1:
The network pre-configures positioning reference signals and provides base station location information to the UE in advance. The UE then performs measurements and calculations autonomously without waiting for network coordination during the actual positioning operation, reducing latency
Solution Approach 2:
The UE independently performs all measurement and calculation operations without requiring network feedback or coordination during the positioning process, eliminating signaling delays and improving positioning efficiency
3Measurement precision
If UE-based autonomous positioning is implemented, then positioning accuracy and speed improve, but device complexity increases
Solution Approach 1:
The UE utilizes existing multi-functional components for positioning operations. The same RF front-end, baseband processor, and antenna arrays used for normal communication are leveraged to perform measurements of positioning reference signals, avoiding the need for dedicated positioning hardware and reducing overall device complexity
Solution Approach 2:
The UE uses copies of existing communication signals (downlink reference signals) for positioning measurements rather than requiring entirely new signal types. The device processes these signals using existing measurement capabilities, simplifying the implementation
Data Source
AI summary
The present application relates to devices and components including apparatuses, systems, and methods for technologies for user equipment-based cellular positioning.