IoT Access Signaling for Zero-Power Backscatter Devices
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Solution Overview
Problem
Implementing appropriate access control for zero power consumption devices in wireless communication systems is challenging due to their unique capabilities and requirements, which differ from traditional terminals.
Innovation Solution
A wireless communication method and device that includes receiving and transmitting indication information for access control, enabling zero power consumption devices to access target cells or basic service sets, utilizing ambient power and backscatter communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access control is implemented for zero power consumption devices, then network security and resource management are improved, but device complexity and implementation difficulty increase
Solution Approach 1:
The patent introduces an intermediary mechanism where the network device sends indication information to the zero power consumption device about access control status. This mediator approach allows the device to understand network policies without complex local decision-making logic, resolving the contradiction between security and implementation simplicity.
Solution Approach 2:
The zero power consumption device autonomously determines whether to access the network based on received indication information without requiring complex authentication procedures. The device serves itself by simply following the network's guidance signals, maintaining security while minimizing device complexity.
2Reliability
If access control information is transmitted to zero power consumption devices, then appropriate network access is ensured, but energy consumption of the device increases
Solution Approach 1:
The network device periodically or event-triggeredly sends indication information to the zero power consumption device rather than maintaining continuous communication. This periodic action ensures appropriate network access decisions are made while minimizing energy consumption by keeping the device in low-power states between transmissions.
Solution Approach 2:
The patent replaces traditional active authentication mechanisms with a more efficient indication-based system. Instead of requiring the device to actively prove its identity and capabilities, the network passively provides guidance information, reducing the energy required for access control operations.
3Reliability
If different access control methods are applied to different zero power consumption devices, then communication reliability is improved, but system complexity increases
Solution Approach 1:
The patent applies local quality by allowing different zero power consumption devices to receive customized indication information based on their specific capabilities and the network's requirements. Each device gets tailored access control guidance appropriate to its characteristics, improving communication reliability without requiring a completely complex system-wide adaptation mechanism.
Solution Approach 2:
The system manages diversity in device capabilities by changing parameters in the indication information rather than changing the fundamental access control mechanism. The network adjusts the content and characteristics of indication signals to match different device types, maintaining simplicity while achieving reliable communication across diverse devices.
Data Source
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AI summary
A wireless communication method, and devices. The method comprises: an environmental energy Internet-of-Things device receiving first indication information, wherein the first indication information is used for indicating access control information of a target cell or a target basic service set (BSS).