Base Station Co-Location Detection Using RSU Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing vehicular and cellular wireless device colocation using uplink communications, particularly in determining co-location and optimizing communication parameters.
Innovation Solution
A method where a base station co-located with a sidelink wireless device, such as a road-side unit (RSU), determines the co-location of a cellular user equipment (C-UE) and a vehicle user equipment (V-UE) by exchanging positioning information and adjusting feedback configurations accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the base station determines co-location of C-UE and V-UE using traditional methods, then the system complexity is low, but the communication efficiency and beam management accuracy deteriorate
Solution Approach 1:
The patent introduces an intermediary mechanism where the RSU acts as a mediator to facilitate co-location determination. The RSU receives positioning information from both the C-UE and V-UE, compares their locations, and provides feedback to the base station. This intermediary approach enables efficient beam management without requiring the base station to directly complexly process all positioning data, thus improving communication efficiency while managing system complexity through distributed functionality.
Solution Approach 2:
The RSU is designed with multi-functionality, serving both as a positioning information collector and as a co-location determination assistant. By enabling the RSU to perform multiple functions (receiving signals from both C-UE and V-UE, determining co-location, and providing feedback), the system achieves improved beam management efficiency without proportionally increasing overall system complexity, as the same infrastructure element handles multiple tasks.
2Reliability
If the base station performs detailed beam management based on V-UE positioning information, then the communication quality with C-UE improves, but the processing requirements and system complexity increase
Solution Approach 1:
The patent extracts the complex processing of positioning information and co-location determination from the base station and assigns it to the RSU. The base station only needs to receive the simplified co-location feedback from the RSU and perform beam management accordingly. This extraction of processing functions improves communication quality through accurate beam management while reducing the processing requirements and complexity at the base station.
3Measurement precision
If the system implements co-location determination and feedback mechanisms, then the beamforming accuracy improves, but the signaling overhead and communication latency increase
Solution Approach 1:
The system performs preliminary co-location determination by the RSU before the base station needs to execute beam management actions. The RSU continuously monitors positioning information and prepares co-location feedback in advance, so when the base station needs to perform beamforming, the necessary information is already available or nearly available. This preliminary action reduces signaling latency while maintaining high beamforming accuracy.
Solution Approach 2:
The patent implements a feedback mechanism where the RSU provides co-location determination results back to the base station. This feedback loop enables the base station to adjust beamforming parameters based on accurate co-location information. The feedback is designed to be efficient, providing only the necessary co-location status and positioning data, thus achieving high beamforming accuracy while minimizing signaling overhead and latency.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Methods, systems, and devices for wireless communications are described. A base station may be co-located with a sidelink wireless device, such as a road-side unit (RSU). The base station may determine that a cellular user equipment (C-UE) and a vehicle UE (V-UE) are co-located, and altering downlink communications to the C-UE. The RSU may communicate over sidelink with a V-UE, and determine positioning information of a VUE. The base station may communicate with a C-UE using downlink and uplink communications (e.g., Uu communications), and may determine some positioning information of a C-UE. The base station and RSU may communicate the positioning information of each device, and the base station may determine that the C-UE and V-UE are co-located. The base station may alter a feedback configuration for the C-UE based on the colocation determination.