Mobile Network Platform Group Multicast Scheduling
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Solution Overview
Problem
Existing M2M group multicast technologies face inefficiencies due to the need for each M2M device to actively join the multicast group, leading to increased resource overheads and reduced efficiency.
Innovation Solution
A method and mobile network platform that allow member devices supporting mobile network multicast communication to receive a multicast access command without actively joining the M2M multicast group, reducing the information generated between the mobile network platform and member devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each M2M device actively joins the multicast group by sending a joining notification, then the device can receive multicast communications, but a large amount of information is generated between the M2M platform and devices, resulting in high resource overheads
Solution Approach 1:
The patent introduces a gateway as an intermediary between the M2M platform and M2M devices. The gateway receives joining notifications from the M2M platform and manages device group membership locally. This intermediary structure reduces the information exchange burden on the M2M platform by consolidating device management functions at the gateway level, thereby reducing resource overheads while maintaining reliable multicast communication capability.
2Reliability
If the M2M platform waits for M2M devices to join the group, then device joining is controlled, but the process is time consuming, reducing group multicast efficiency
Solution Approach 1:
The patent implements preliminary action by having the M2M platform proactively send joining notifications to devices and the gateway before multicast communications begin. The gateway pre-processes these notifications and establishes device group memberships in advance. This preliminary setup eliminates waiting delays during actual multicast operations, improving group multicast efficiency while maintaining controlled group membership through the structured notification and processing mechanism.
3Adaptability or versatility
If the M2M platform sends joining notifications to multiple specified M2M devices, then devices can be added to the multicast group, but the interaction process generates a very large quantity of resource overheads
Solution Approach 1:
The patent merges the device management functions by consolidating multiple device joining operations through a single gateway interface. Instead of the M2M platform individually managing each device's joining process, the gateway combines these operations into a unified management approach. This merging reduces the total information generated between the platform and devices while maintaining adaptable device group management capabilities.
Data Source
Figure 1A~1B
Figure 2~5
Figure 6A
AI summary
A group multicast technology is provided. A mobile network platform creates a device group according to a member device supporting a mobile network multicast communication manner in an M2M group, generates an identifier of an external group corresponding to the device group, and requests an SCEF to create the external group according to the identifier of the external group and an external device identifier of the member device supporting the mobile network multicast communication manner. When receiving an access request for the M2M group, the mobile network platform obtains the device group in the M2M group, learns of the corresponding external group, and then requests the SCEF to access the member device in the external group in a multicast communication manner. This may reduce an amount of information generated due to interaction between an M2M platform and an M2M device, reducing resource overheads. Therefore, a member device no longer needs to actively join a group during multicast, thereby implementing centralized scheduling by the mobile network platform.