MTC Transmission Scheduling via Network Load Estimation
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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 concurrently transmit data, which can affect the quality of experience for smartphone users.
Innovation Solution
Implementing a mechanism where network nodes perform transmission planning and scheduling based on load estimates, suggesting optimal timeslots for MTC devices to resend data when network load is low, thereby reducing congestion and ensuring efficient resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If MTC devices transmit data concurrently without scheduling, then device simplicity is maintained, but network congestion increases and performance degrades
Solution Approach 1:
The network node performs preliminary transmission planning by determining optimal timeslots for MTC devices before actual data transmission occurs. Load estimates are calculated in advance for different future timeslots, and devices are instructed to transmit only during scheduled low-load periods, preventing congestion before it happens
Solution Approach 2:
The system dynamically adjusts transmission scheduling based on real-time network load conditions. The network node continuously monitors load estimates and adapts the timeslot allocation for MTC devices accordingly, making the system flexible rather than static
2Speed
If MTC devices transmit data without load-based scheduling, then transmission speed is maintained, but signaling overhead increases and network congestion occurs
Solution Approach 1:
The patent combines multiple functions into the timeslot scheduling mechanism: load estimation, transmission planning, congestion prevention, and resource allocation are all integrated into a single scheduling framework, reducing the need for separate control signals and overhead messages
3Loss of time
If MTC devices transmit during high load periods, then immediate data delivery is achieved, but quality of service for other users deteriorates
Solution Approach 1:
The network node calculates load estimates for future timeslots in advance and identifies optimal transmission windows before congestion occurs. MTC devices are pre-scheduled to transmit during these identified low-load periods, ensuring timely delivery without impacting QoS
Solution Approach 2:
The system uses load estimate feedback from the network node to adjust MTC device transmission timing. The network node provides feedback about network conditions, and devices adapt their transmission schedules based on this feedback to avoid high-load periods
Data Source
AI summary
The invention relates to methods for controlling transmission of machine type communication data to or from machine type communication devices within a mobile communication system. Furthermore, the invention relates to a mobile terminal and network node for implementing such methods, and to implementations of the methods in software. In one aspect of the invention, a mechanism to perform transmission planning (or scheduling) of data transmission from machine type communication devices is suggested. This transmission planning may be based on load estimates at different points in time (e.g. for individual timeslots), and may allow the scheduling of transmissions of machine type communication data at points in time, where the load in the mobile/wireless communication network is expected to be low.