Ambient IoT Reader Role Assignment for Reliable Data Forwarding
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Solution Overview
Problem
Communication reliability in Ambient IoT networks is low due to passive, semi-passive, and semi-active terminals relying on ambient power, which struggle with data transmission and reception.
Innovation Solution
An access network device determines a target reader role for terminal devices by obtaining and analyzing their authorized reader roles, link status, and radio resource availability, enabling them to act as assisted readers for improved data forwarding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If passive, semi-passive, and semi-active terminals use ambient power for communication, then energy consumption is reduced, but communication reliability deteriorates
Solution Approach 1:
The patent introduces an access network device as an intermediary that assists passive, semi-passive, and semi-active terminals in communication. The access network device receives data from these energy-constrained terminals and forwards it to the core network, enabling reliable communication without requiring the terminals to have full communication capabilities or high energy consumption.
Solution Approach 2:
The communication function is segmented between the passive/semi-passive/semi-active terminals and the access network device. The terminals only need to perform simple data transmission to the access network device, while the access network device handles the complex communication protocols and data forwarding to the core network, allowing terminals to operate with minimal energy.
2Adaptability or versatility
If terminal devices serve as readers in Ambient IoT networks, then device versatility is improved, but communication reliability deteriorates
Solution Approach 1:
The access network device serves as an intermediary between the terminal device (acting as reader) and the core network. This intermediary handles the communication reliability concerns, allowing the terminal device to perform reader functions with enhanced reliability through the access network device's assistance in data transmission and protocol management.
Data Source
AI summary
A communication method and a related apparatus are provided. The method includes: An access network device determines a target reader role of a terminal device. The access network device sends first information to the terminal device, where the first information indicates the terminal device to execute the target reader role. The method in this application improves communication reliability.