Terminal Polarization Selection for NTN Reception and Throughput
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The method for determining polarization in 5G NR radio communication systems, particularly in Non-Terrestrial Networks (NTN) environments, has not been fully studied, leading to potential reception performance degradation and inefficiencies in signal processing.
Innovation Solution
A method for determining and using polarization in terminals, where a base station and terminal devices control and communicate using specific polarization settings, either predefined or indicated, to optimize reception and transmission processes, including methods for initial access and ongoing communication phases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If polarization determination method is not established in NTN environments, then system complexity is reduced, but reception performance deteriorates due to inter-beam interference
Solution Approach 1:
The base station determines and notifies the terminal of polarization information in advance before actual data transmission. This preliminary determination of polarization settings allows the terminal to properly configure its receiver, reducing inter-beam interference and improving reception performance without adding complex real-time determination mechanisms.
Solution Approach 2:
The base station acts as an intermediary that centrally determines polarization information and communicates it to terminals via downlink control information. This centralized approach avoids the need for complex distributed polarization determination mechanisms while ensuring consistent polarization management across the network, thereby improving reception performance without proportionally increasing overall system complexity.
2Productivity
If polarization multiplexing is implemented, then throughput is improved, but device complexity increases due to polarization management requirements
Solution Approach 1:
The polarization determination mechanism is designed to be universal and adaptable. The base station can determine polarization information that applies to multiple terminals and multiple beams simultaneously through single notification messages. This multi-functional approach enables throughput improvement via polarization multiplexing while avoiding proportional increases in device complexity, as the same polarization management infrastructure serves multiple purposes.
Solution Approach 2:
The system utilizes polarization as an additional parameter for resource multiplexing. By changing and managing polarization parameters (e.g., switching between different polarization states for different beams or terminals), the system achieves higher throughput through polarization multiplexing. The complexity is managed by controlling polarization changes through centralized base station decisions rather than distributed terminal decisions.
Data Source
AI summary
This terminal is provided with: a control circuit that determines a polarized wave using at least one among first wireless communication and second wireless communication after the first wireless communication; and a communication circuit that performs at least one wireless communication using the determined polarized wave.