Ambient Energy Uplink Indication for Timely Wireless Transmission
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Solution Overview
Problem
Ambient energy-based communication devices face constraints in frequent signal transmission due to energy harvesting limitations, leading to inefficient communication.
Innovation Solution
The method and apparatus facilitate effective communication by enabling a device to send and receive signals that carry information about its own and the partner device's transmission status, allowing for timely triggering and orientation, thereby optimizing energy use and transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If ambient energy-based communication devices perform signal transmission only after harvesting sufficient energy, then energy consumption is controlled, but communication frequency and transmission efficiency deteriorate
Solution Approach 1:
The first device performs preliminary actions by pre-harvesting and storing energy in advance, and pre-processing transmission data, so that when communication is needed, the device can immediately transmit without waiting for energy accumulation, thus improving communication frequency while maintaining energy efficiency
Solution Approach 2:
The patent introduces an energy management module as an intermediary between the energy harvesting system and the communication module. This intermediary efficiently allocates harvested energy to transmission operations, manages energy buffering, and optimizes the timing of transmissions to maximize communication frequency within available energy constraints
2Reliability
If ambient energy-based communication devices wait for sufficient energy before transmission, then transmission reliability is improved, but transmission timeliness deteriorates
Solution Approach 1:
The device performs preliminary energy harvesting and data buffering in advance, preparing transmission resources before they are needed. This allows the device to maintain reliable transmission by having pre-prepared energy and data ready, eliminating waiting time and reducing transmission delays
Solution Approach 2:
The patent implements dynamic energy management that continuously monitors energy levels and adjusts transmission timing accordingly. The system dynamically switches between different transmission modes (immediate transmission when energy is sufficient, deferred transmission when energy is low) to balance reliability and timeliness based on real-time conditions
3Quantity of substance
If ambient energy-based communication devices limit signal transmission frequency, then energy harvesting requirements are reduced, but communication efficiency deteriorates
Solution Approach 1:
The device employs self-service mechanisms through autonomous energy management algorithms that automatically optimize transmission scheduling based on harvested energy levels. The system self-adjusts transmission frequency and timing without external intervention, maximizing communication efficiency within the constraints of available harvested energy
Solution Approach 2:
The patent changes key operating parameters dynamically, including transmission power levels, modulation schemes, and transmission intervals, based on available energy levels. By adapting these parameters in real-time, the system maintains high communication efficiency even with limited energy harvesting, optimizing the trade-off between energy consumption and transmission performance
Data Source
AI summary
A method and apparatus for information indication are provided. The method includes: a first device receives an uplink signal from a second device, the uplink signal carries first information, and the first information indicates at least one of: related information of uplink transmission performed by the second device, or related information of downlink transmission performed by the first device; and the second device is an ambient energy-based communication device.