Sidelink UE Power Sharing for Positioning and Interference Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Interference and congestion in wireless communication networks due to increasing demand for mobile broadband access and the presence of UEs outside network coverage, which degrade performance and cause interference, necessitating improved power control mechanisms for sidelink transmissions.
Innovation Solution
Implementing power control techniques for sidelink transmissions by sharing power control information between UEs, using methods such as cluster-based or zone-based approaches, and adjusting power parameters for sidelink positioning reference signals (SL PRS) to optimize transmission power levels and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If power control information is shared between UEs for sidelink transmissions, then positioning accuracy is improved and interference is reduced, but device complexity increases due to additional information processing and communication overhead
Solution Approach 1:
The patent implements feedback mechanisms where UEs exchange power control information including path loss measurements, reference signal received power (RSRP), and power control indicators. This feedback loop enables each UE to adjust its transmit power based on received information from neighboring UEs, thereby improving positioning accuracy and reducing interference while managing device complexity through standardized feedback protocols
Solution Approach 2:
The patent changes power parameters dynamically by adjusting transmit power levels based on shared power control information. UEs modify their transmission power according to received path loss measurements and power control indicators, enabling adaptive power management that improves positioning precision and reduces interference without requiring complex hardware modifications
2Object-generated harmful factors
If power control information is shared between UEs, then interference is reduced, but loss of information increases due to additional signaling overhead
Solution Approach 1:
The patent extracts only the essential power control information needed for interference management and positioning, such as path loss measurements, RSRP values, and power control indicators. By selecting and transmitting only these critical parameters rather than all possible UE data, the system reduces interference while minimizing information overhead
Solution Approach 2:
The power control information sharing mechanism serves multiple functions simultaneously: it enables interference reduction through coordinated power management, provides positioning data for location services, and maintains network optimization. This multi-functionality reduces the need for separate signaling channels, thereby reducing overall information overhead
3Productivity
If more UEs access wireless communication networks, then network capacity increases, but interference and congestion worsen degrading performance
Solution Approach 1:
The patent implements dynamic power control where UEs continuously adjust their transmit power levels based on real-time network conditions and received power control information from neighboring UEs. This dynamic adaptation enables the network to handle increasing numbers of UEs while maintaining performance by optimizing power distribution and reducing interference in congested areas
Data Source
AI summary
This disclosure provides systems, methods, and devices for wireless communication that support power control for sidelink communications, including positioning operations using sidelinks. In a first aspect, a method of wireless communication includes retrieving, by the first UE, first information regarding power control for a sidelink transmission; and transmitting, by the first UE to a second UE, at least one indicator based on the first information. Other aspects and features are also claimed and described.