AMP Signal Updates for Low-Power System Parameter Reception
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Solution Overview
Problem
Zero-power devices in communication systems face challenges in frequently receiving public control information due to their limited battery levels, making it difficult to implement mechanisms like beacon frame reception.
Innovation Solution
A network device transmits a first signal containing system parameter update information to an ambient power-enabled (AMP) device, using a method that includes first and second indication information to efficiently convey updates, reducing the AMP device's power consumption and complexity in parameter reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If zero-power devices periodically receive public control information, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent segments the system into network devices (with power) and AMP devices (zero-power). The network device performs all power-intensive operations including generating and transmitting signals, while the AMP device only performs passive reception and energy harvesting, eliminating the contradiction by removing the receiving device from the power consumption equation.
Solution Approach 2:
The patent introduces energy harvesting technology as an intermediary mechanism that allows AMP devices to obtain power from ambient electromagnetic signals without requiring internal power sources. This mediator enables the device to receive control information reliably while maintaining zero-power operation through environmental energy capture.
2Adaptability or versatility
If zero-power devices receive system parameter updates frequently, then system adaptability is improved, but device complexity increases
Solution Approach 1:
The patent extracts the complexity of parameter update management from the AMP device and centralizes it in the network device. The network device handles all decisions about when and how to transmit parameter updates, while the AMP device simply receives signals without needing to process or manage update timing, significantly reducing receiver complexity.
Solution Approach 2:
The network device performs preliminary actions by pre-processing and encoding parameter update information before transmission. System parameter updates are prepared in advance with optimized signaling formats that AMP devices can directly interpret without complex processing, enabling frequent updates with minimal receiver complexity.
Data Source
AI summary
A method for wireless communication, a network device, and an ambient power-enabled (AMP) device are provided. The method includes the following. A network device transmits a first signal to an AMP device, where the first signal contains system parameter update information.