Group-Based MTC Communication for Network Congestion
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Solution Overview
Problem
Current M2M-based solutions do not adequately address network congestion caused by a large number of MTC devices performing network registration and data transmission simultaneously.
Innovation Solution
Organizing MTC WTRUs into groups for group-based network registration and data transmission, where a group-based IMSI is used, and IP addresses and radio resources are proactively allocated, allowing staggered data transmission and sequential order control by the core network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a large number of MTC devices perform network registration and data transmission simultaneously, then device connectivity and data transmission capability are improved, but network congestion increases
Solution Approach 1:
The patent segments MTC devices into groups based on their data transmission characteristics and priorities. Each group is assigned specific time windows for network registration and data transmission, preventing simultaneous access by all devices and thereby reducing network congestion while maintaining overall productivity.
Solution Approach 2:
The patent implements proactive allocation of IP addresses and radio resources for MTC groups before actual data transmission occurs. The core network performs group pre-registration and allocates resources in advance, eliminating the need for devices to compete for resources at transmission time and preventing network congestion.
2Productivity
If IP addresses and radio resources are allocated proactively for MTC groups, then resource allocation efficiency is improved, but network complexity increases
Solution Approach 1:
The patent merges individual device resource allocation into group-level allocation. Instead of managing IP addresses and radio resources for each MTC device separately, the core network allocates these resources to groups as a unit, simplifying network management while improving allocation efficiency.
Solution Approach 2:
The patent introduces a group identifier as an intermediary between the core network and individual MTC devices. This group-based identification system simplifies the interaction complexity by allowing the core network to manage resources at the group level rather than dealing with numerous individual device requests.
3Object-affected harmful factors
If MTC devices transmit data in sequential order according to prescribed time windows, then network congestion is reduced, but transmission delay increases
Solution Approach 1:
The patent implements periodic time windows for group-based data transmission, where MTC devices transmit data in organized batches according to prescribed time intervals. This periodic structure reduces network congestion by preventing simultaneous transmissions while maintaining relatively short delays through frequent transmission opportunities.
Data Source
AI summary
Methods and apparatus are provided for performing group-based machine-to-machine communication. Machine-type communication (MTC) wireless transmit/receive units (WTRUs) may operate in MTC groups. MTC WTRUs belonging to the same MTC group may use a group-based International Mobile Subscriber Identity (IMSI) and a group-based IP address for data transmission. Group-based network registration may be performed. A group-based IP address and radio resources may be proactively allocated for an MTC group. A master MTC may perform network registration/attachment process on behalf of the MTC group. A group of MTC WTRUs may transmit data according to staggered time windows.