M2M Session Management Group Bearer Modification
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Solution Overview
Problem
In M2M communication networks, managing large groups of user devices leads to significant signaling overhead and network congestion due to the existing session management procedures, which increase network load and reduce efficiency.
Innovation Solution
A session management method and system that acquires gateway equipment and mobility management network element information for group user devices, allowing for coordinated bearer change processing based on group granularity, reducing signaling overhead and network load by managing changes in shared subscription data at a group level.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing session management procedure is initiated based on user device granularity for M2M group, then individual user device management is achieved, but signaling overhead and network load increase significantly
Solution Approach 1:
The patent merges multiple user device contexts into a group context at the gateway equipment. When subscription data changes, the HLR/HSS sends modification notifications to the MME/SGSN, which then initiates a single bearer modification procedure for the entire group rather than individual procedures for each device. This combining approach reduces signaling overhead while maintaining individual device management capability.
Solution Approach 2:
The gateway equipment (SGW/PGW or GGSN) is enhanced to store and manage both individual user device contexts and group contexts. This multi-functionality allows the gateway to handle both individual and group-level bearer modifications, enabling the system to switch between granular management and bulk management based on the scenario.
2Reliability
If bearer modification procedure is initiated for each user device in M2M group, then precise control over each device is achieved, but network congestion occurs
Solution Approach 1:
The patent combines multiple individual bearer modification operations into a single group-level operation. The MME/SGSN initiates one bearer modification procedure that affects all user devices in the M2M group simultaneously, reducing network congestion while maintaining precise control through the group context stored at the gateway equipment.
Solution Approach 2:
The patent segments the bearer management function into two parts: individual user device contexts are maintained for precise control, while group-level context is maintained at the gateway for bulk operations. This segmentation allows the system to choose between individual and group-level management based on the specific scenario.
3Productivity
If group subscription data is shared among all user devices in M2M group, then management efficiency is improved, but individual device customization is lost
Solution Approach 1:
The patent segments the subscription data into two layers: group subscription data stored at the gateway equipment for efficient bulk management, and individual user device contexts that preserve customization. This segmentation allows the system to leverage shared data for efficiency while maintaining individual contexts for customization when needed.
Solution Approach 2:
The patent implements a nested structure where individual user device contexts are nested within the group context at the gateway equipment. The group subscription data serves as the outer layer for efficient management, while individual device contexts are nested inside for customization, allowing both levels to coexist and be accessed appropriately.
Data Source
AI summary
Embodiments of the present invention disclose a session management method and system based on an M2M application and an apparatus. In one embodiment, a session management method is based on a machine-to-machine application. Gateway equipment information and group number information of a group user device are acquired and it is determined that group information of the group user device has changed. A gateway equipment is instructed to execute bearer change processing on the group user device. The instructing is based on the gateway equipment information and the group number information of the group user device. The bearer change processing is executed on the group user device.