D2D Relay Terminal Idle-State Switching for Lower Power Use
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Solution Overview
Problem
The challenge of reducing power consumption in communication systems utilizing Device-to-Device (D2D) communication, particularly in scenarios involving relay communications, has not been adequately addressed.
Innovation Solution
A communication system design where a first communication terminal relays messages between a second communication terminal and a base station, releasing its connection with the base station and transitioning to an idle state when no data is being transmitted or received for a predetermined period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a communication terminal maintains connection with base station during D2D communication, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by enabling the relay terminal to transition between connected and idle states based on real-time communication needs. The terminal dynamically adjusts its connection state with the base station according to whether data transmission is occurring, optimizing both reliability and power consumption through state flexibility.
Solution Approach 2:
The patent implements periodic action through the mechanism where the relay terminal periodically checks for data transmission status and transitions to idle state when no data is being transmitted for a predetermined period. This periodic monitoring and state transition reduces power consumption while maintaining connection reliability when needed.
2Stability of the object's composition
If relay terminal maintains continuous connection with base station, then communication stability is improved, but energy consumption increases
Solution Approach 1:
The relay terminal dynamically adjusts its connection state based on actual data transmission requirements. When data is being transmitted, the terminal maintains connected state for stability; when no data is transmitted for a predetermined period, it transitions to idle state to reduce energy consumption, thus optimizing the balance between stability and energy usage.
Solution Approach 2:
The patent changes the connection state parameter of the relay terminal based on data transmission status. By monitoring whether data is being transmitted and comparing it against the predetermined period threshold, the system changes the terminal's state parameter (connected/idle) to optimize both communication stability and energy consumption.
3Loss of energy
If terminal transitions to idle state quickly, then power consumption is reduced, but connection establishment time increases
Solution Approach 1:
The relay terminal maintains its connection with the base station in advance during data transmission periods. This preliminary action ensures that when data transmission needs to resume, the terminal can quickly re-establish communication without requiring full connection establishment procedures, thus reducing the time loss associated with frequent idle state transitions.
Data Source
AI summary
The power consumption is reduced in a communication system using Device-to-Device communication. The communication system includes a base station, a first communication terminal configured to perform radio communication with the base station, and a second communication terminal configured to perform Device-to-Device communication with the first communication terminal. The first communication terminal is configured to relay communication between the second communication terminal and the base station. The first communication terminal releases connection with the base station and transitions to an idle state in the absence of data to be transmitted and received between the second communication terminal and the base station for a predetermined period.