Uplink Positioning Beam LOS Path Indication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In uplink positioning protocols of communications systems, network-side devices struggle to accurately determine the location of terminal devices when the beam used for transmitting positioning reference signals is an NLOS path, as they cannot distinguish between NLOS and LOS paths.
Innovation Solution
The proposed solution involves determining and reporting specific information about the target beam, including direction information, energy change information, LOS path indication, and beam identification, to enable accurate positioning of the terminal device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the network-side device uses beam-based uplink positioning, then positioning can be implemented, but the network-side device cannot accurately determine whether the beam is an NLOS path when it does not know the location of the terminal device and adjacent cell
Solution Approach 1:
The terminal device feeds back beam information including direction information, energy change information, and LOS path indication information to the network-side device. This feedback mechanism enables the network-side device to accurately determine whether the beam is an NLOS path without needing to know the precise location of the terminal device and adjacent cell, thereby resolving the contradiction between positioning accuracy and information loss.
2Adaptability or versatility
If the network-side device does not know the location of the terminal device and adjacent cell, then positioning can be performed without location data, but the network-side device cannot determine whether the beam is an NLOS path
Solution Approach 1:
The terminal device performs self-measurement of beam characteristics including direction information, energy change information, and LOS path indication information. This self-service approach allows the terminal device to provide reliable beam path determination without requiring the network-side device to have prior knowledge of location data, thus achieving both adaptability and reliability.
Data Source
AI summary
A positioning method and a communication device are provided, which relate to the field of communication technologies. The method includes: determining first information. The first information includes at least one of the following: direction information of a target beam, energy change information of the target beam, LOS path indication information, and beam identification information. The first information is used to determine positioning information of the first device. The LOS path indication information is used to indicate whether the target beam is an LOS path. The beam identification information is identification information of the target beam.