Group-Based M2M Communication for Network Congestion
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Solution Overview
Problem
Current Machine-to-Machine (M2M) communication solutions do not adequately address network congestion caused by a large number of MTC devices performing network registration and data transmission simultaneously.
Innovation Solution
Implementing group-based M2M communication where MTC WTRUs operate in groups, receiving broadcast messages with dedicated time windows for data transmission and reception, allowing for coordinated data exchange to reduce network congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a large number of MTC devices perform network registration and data transmission simultaneously, then the network can support high device density, but network congestion occurs
Solution Approach 1:
The patent segments the network access process by introducing group-based registration and time-windowed data transmission. Devices are divided into groups that register collectively rather than individually, and data transmission is segmented into specific time windows to distribute load across the network, thereby supporting high device density while preventing congestion.
Solution Approach 2:
The patent implements periodic action through scheduled time windows for data transmission. Instead of continuous or random transmission, devices are allocated specific periodic time windows to send data, which distributes traffic evenly across the network and prevents simultaneous access conflicts, thus supporting dense device deployment without congestion.
2Productivity
If MTC devices transmit data simultaneously, then data transmission speed is high, but signaling overhead increases
Solution Approach 1:
The patent merges multiple device transmissions into group-based communication sessions. By combining the registration and data transmission processes at the group level rather than individual device level, the system achieves high data transmission speed while significantly reducing the signaling overhead that would result from individual device handshakes and acknowledgments.
Data Source
AI summary
Methods and apparatus are provided for performing group-based machine-to-machine (M2M) communication. Machine-type communication (MTC) wireless transmit/receive units (WTRUs) may operate in M2M groups. MTC WTRUs belonging to the same M2M group may receive a broadcast message with a time window on a channel dedicated for receiving data directed to an M2M group. The MTC WTRUs may wake up during the time window and may receive data directed to an M2M group on a dedicated channel. The broadcast message may be broadcasted via a broadcast server upon a request from an MTC server. The time window is allocated upon a request from an MTC server on behalf of the M2M group.