Mobile Relay Bidirectional Communication Optimization
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Solution Overview
Problem
Current wireless communication systems with fixed relays are limited in network coverage and incur high installation and operating costs, and they only support unidirectional communication, whereas bidirectional communication is necessary for efficient information exchange between terminals, which requires optimization of mobile relay position, path, transmission powers, and resource allocation.
Innovation Solution
A method and device for bidirectional communication using a mobile relay that determines optimal variables such as position, speed, acceleration, transmission powers, and resource allocation ratios to maximize the transmission ratio, enabling efficient inter-terminal communication by optimizing the mobile relay's path and resource allocation in a wireless communication system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If fixed relays are installed to expand network coverage, then communication services are provided in specific areas, but installation and operating costs increase and communication is limited to fixed locations
Solution Approach 1:
The patent transforms the fixed relay into a mobile relay that can move freely in three-dimensional space. The mobile relay dynamically adjusts its position and trajectory to provide communication services, converting the static infrastructure into a dynamic system that reduces installation and operating costs while maintaining or expanding coverage area.
Solution Approach 2:
The mobile relay acts as an intermediary node between base stations and terminals, enabling communication in areas where direct base station coverage is unavailable. It serves as a flexible intermediate platform that can be deployed to specific locations temporarily, reducing the need for permanent infrastructure installation.
2Device complexity
If unidirectional communication is used to simplify relay functionality, then device complexity is reduced, but bidirectional communication capability is lost which limits information exchange between terminals
Solution Approach 1:
The mobile relay is designed with multi-functionality to support both unidirectional and bidirectional communication modes. It can simultaneously act as a transmitter to one terminal and a receiver from another terminal, enabling flexible information exchange between multiple terminals while maintaining manageable device complexity through standardized protocols.
3Productivity
If mobile relay position and transmission power are optimized to maximize transmission ratio, then communication efficiency improves, but system complexity and control difficulty increase
Solution Approach 1:
The system implements feedback mechanisms where the mobile relay continuously monitors communication channel conditions, signal quality, and terminal positions. Based on this feedback, the relay dynamically adjusts its position, trajectory, and transmission power to maximize transmission ratio while maintaining manageable control complexity through automated control algorithms.
Solution Approach 2:
The mobile relay optimizes communication performance by dynamically changing key parameters including position coordinates, velocity, acceleration, and transmission power level. These parameter adjustments are made in real-time based on channel conditions to maximize transmission ratio while the system manages complexity through coordinated optimization of these parameters.
Data Source
AI summary
Provided is a method where mobile relay performs bidirectional inter-terminal communication in wireless communication system. The method includes determining optimal values of predetermined variables for maximizing a transmission ratio for the bidirectional inter-terminal communication during a predetermined time segment using pieces of basic information of at least one of the mobile relay, a first terminal, or a second terminal, transmitting setting information on the optimal values to at least one of the first terminal and the second terminal, and performing the bidirectional inter-terminal communication on the basis of the optimal values. The predetermined variables include at least one of a position of the mobile relay, a speed of the mobile relay, acceleration of the mobile relay, a downlink transmission power of the mobile relay, an uplink transmission power of the first terminal, an uplink transmission power of the second terminal, or a transmission resource allocation ratio for uplink and downlink.