Access Network Packet Handling for Passive IoT Over Cellular
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Solution Overview
Problem
Existing communication systems struggle to efficiently support packet transmission for passive or semi-active Internet of Things (IoT) systems when integrated with cellular networks, leading to challenges in parsing and processing IoT application packets.
Innovation Solution
The implementation of a method and apparatus that enable access network devices to recognize and process passive or semi-active IoT instructions by using specific information within packets, such as message types, container types, and tunnel identifiers, allowing for the use of protocols like LLRP, to facilitate seamless integration and operation with cellular networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cellular networks integrate passive or semi-active IoT technologies, then the network can support IoT applications, but the network complexity increases and packet parsing becomes difficult
Solution Approach 1:
The patent introduces an intermediary mechanism where the access network device obtains first information from the IoT function network element to identify packet types. This information acts as a mediator that enables the access network device to correctly parse and process IoT packets without requiring complex built-in knowledge of multiple IoT protocols, thus reducing the complexity burden on the access network device while maintaining IoT support capability.
Solution Approach 2:
The patent segments the packet processing function by separating packet identification (handled by obtaining first information) from packet processing (handled by performing passive or semi-active IoT operation). This segmentation allows each component to focus on a specific function, reducing overall system complexity while enabling versatile IoT application support.
2Device complexity
If the access network device processes IoT packets without additional information, then the processing is simpler, but the packet parsing accuracy decreases
Solution Approach 1:
The patent applies preliminary action by having the access network device obtain first information before processing the IoT packet. This preliminary step provides the necessary context and identification data (such as message type, container type, or tunnel identifier) that enables accurate packet parsing, while the overall process remains simple by leveraging existing information exchange mechanisms between network elements.
Data Source
AI summary
Embodiments of this application disclose a packet transmission method and a related apparatus. An access network device receives a first packet from an Internet-of-things (IoT) function network element; the access network device obtains first information, where the first information indicates that the first packet includes a passive or semi-active IoT instruction; and the access network device performs a passive or semi-active IoT operation based on the first packet. According to the foregoing method, the access network device learns that the packet from the IoT function network element is related to a passive or semi-active internet of things, and the access network device performs the passive or semi-active IoT operation based on the first packet. This resolves a packet transmission problem in a scenario in which a passive or semi-active IoT system is converged with a cellular network.