Backscatter Terminal Resource Allocation for Low-Power Communication
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Solution Overview
Problem
Semi-passive terminals with zero power consumption face reduced charging efficiency when far away from network nodes, as real-time power harvesting may not meet instant communication demands, necessitating efficient power utilization to meet communication power requirements.
Innovation Solution
Configuring specific uplink and downlink transmission resources for terminal devices based on their type or group to reduce contention, improve success rates, and minimize unnecessary power consumption, thereby enhancing power utilization efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If semi-passive terminals harvest power in real-time, then power is available for communication, but charging efficiency is greatly reduced when far away from network nodes
Solution Approach 1:
The patent applies preliminary action by configuring specific uplink and downlink transmission resources for terminal devices based on their type or group before communication occurs. This advance configuration ensures that terminals with limited power harvesting capabilities have pre-allocated resources, reducing the need for real-time power harvesting and improving charging efficiency while ensuring power availability for communication.
2Use of energy by moving object
If configuration resources are allocated for terminal types or groups, then power consumption is minimized, but device complexity increases
Solution Approach 1:
The patent applies local quality by configuring specific uplink and downlink transmission resources tailored to different terminal types or groups. Instead of a uniform configuration for all terminals, the system provides customized resource allocations based on the specific characteristics and power harvesting capabilities of each terminal type, thereby minimizing power consumption for each terminal while managing configuration complexity through targeted rather than universal configuration.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces time and power consumption for successful data transmission, conserves harvested power, and ensures power demand is met during communication, especially for terminals with limited power harvesting capabilities.
Implementation Method 1
A backscattered signal is sent or a downlink signal is listened for, based on a configuration resource for the type of the terminal device or the terminal group to which the terminal device belongs
Data Source
AI summary
A wireless communication method, a terminal device and a communication device. In the method the type or terminal group to which a terminal device belongs is determined. A backscatter signal is sent or a downlink signal is monitored on the basis of a configuration resource corresponding to the type or terminal group to which the terminal device belongs. On the basis of the configuration resource corresponding to the type or terminal group to which the terminal device belongs, the backscatter signal is sent or the downlink signal is monitored, that is, the terminal devices of different types or different groups correspond to different configuration resources.