MTC Data Transmission via Disrupted Connectivity Mode
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Solution Overview
Problem
Current mobile communication networks face challenges in managing the high signaling overhead and bursty traffic patterns of machine-type communications (MTC), leading to network congestion and degraded performance, especially when a large number of MTC devices require simultaneous connectivity, which can result in dropped calls and intermittent data connectivity for human users.
Innovation Solution
Implementing a disrupted-connectivity mode where network nodes temporarily store and aggregate MTC data during overload conditions, using a disrupted-connectivity header to manage data transmission, allowing data to be forwarded when network load permits, and using a single connection for aggregated data to reduce overhead and improve efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large number of MTC devices establish separate connections for data transmission, then each device can communicate reliably, but network signaling overhead increases and network congestion occurs
Solution Approach 1:
The patent combines multiple MTC device data transmissions into a single shared connection through the concept of a common radio resource pool. Multiple devices can transmit data simultaneously over the same uplink resources without establishing individual dedicated connections, thereby reducing signaling overhead while maintaining reliable communication through proper resource allocation and collision handling mechanisms.
Solution Approach 2:
The patent creates a universal uplink resource pool that serves multiple MTC devices simultaneously. The same radio resources can be shared by different devices for different data transmissions, making the network infrastructure more versatile and reducing the need for device-specific connection setup, thus lowering overall signaling overhead.
2Loss of time
If network nodes forward all MTC data immediately, then data transmission delay is minimized, but network load increases causing congestion and degraded performance
Solution Approach 1:
The patent prepares uplink radio resources in advance and configures them for shared use by multiple MTC devices before actual data transmission begins. This preliminary setup eliminates the need for individual connection establishment for each data packet, enabling immediate data transmission without delay while the shared resource pool handles the aggregate load efficiently.
Solution Approach 2:
The patent maintains continuous data transmission capability by establishing a persistent shared connection that remains active for multiple devices. Once the uplink resources are allocated, devices can continuously transmit data without interruption for connection setup or teardown, ensuring both low latency and efficient network resource utilization.
3Reliability
If separate connections are established for each MTC device, then data transmission reliability is improved, but network resource consumption increases
Solution Approach 1:
The patent merges multiple individual device connections into a single shared uplink connection that serves multiple MTC devices. This consolidation reduces the total number of connection instances in the network, thereby decreasing control plane signaling and radio resource consumption while maintaining reliable data transmission through proper shared resource management.
Data Source
AI summary
The invention relates to methods for controlling transmission of machine type communications data to or from machine type communications devices within a mobile communication system. Furthermore, the invention relates to a network component and a network node for implementing such methods, and to implementations of the methods in software.