Group Messaging Redistribution for IoT Network Congestion
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Solution Overview
Problem
In IoT systems, group messages from a Service Capability Server (SCS) to Machine Type Communication (MTC) devices may fail due to temporary wireless access network failures, leading to unclear recovery procedures and potential network congestion or overload when point-to-point communication is used.
Innovation Solution
A communication processing system with a group messaging request acquirer, distributor, and redistribution instructor that acquires and distributes group messaging requests to multiple devices, and upon detecting no response within a predetermined time, redistributes the request to a service area based on error information, avoiding the need for point-to-point communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If group messaging is used to reduce the number of messages exchanged with MTC devices, then network congestion is avoided and resources are saved, but message delivery reliability deteriorates when wireless access network failures occur
Solution Approach 1:
The system implements feedback mechanisms where the SCS receives notification when MTC devices cannot receive group messages due to wireless access network failures. This feedback enables the SCS to execute recovery procedures such as retransmission, thereby maintaining message delivery reliability while preserving the efficiency benefits of group messaging.
Solution Approach 2:
The patent establishes preliminary error handling procedures and recovery mechanisms in advance. When group messaging is implemented, the system pre-configures fallback options including point-to-point retransmission capabilities, ensuring that reliability is maintained without sacrificing the initial efficiency gains from reduced messaging.
2Reliability
If point-to-point communication is used for retransmission to ensure reliable message delivery, then message delivery reliability is improved, but network congestion and overload occur
Solution Approach 1:
Instead of universally applying point-to-point communication to all devices, the system applies it partially only to devices that failed to receive the group message. This selective approach ensures reliability for affected devices while avoiding the network congestion that would result from universal point-to-point retransmission.
Solution Approach 2:
The system applies different communication qualities to different devices based on their reception status. Devices that successfully received the group message maintain the efficient group communication channel, while only devices with reception failures trigger point-to-point retransmission, optimizing both reliability and network efficiency.
Data Source
AI summary
A system of this invention is directed to a communication processing system that copes with a failure while avoiding network congestion or overload by reducing signaling even if a device cannot receive a group message. This communication processing system forms VPLMN (Visited Public Land Mobile Network), and includes a group messaging request acquirer that acquires, from an application, a group messaging request to be distributed to a plurality of devices, a group messaging request distributer that distributes the group messaging request to the plurality of devices, and a redistribution instructor that instructs, when receiving no response to the group messaging request from any one device in the plurality of devices within a predetermined time, the group messaging request distributer to redistribute the group messaging request to a service area including the any one device based on error information of the service area.