M2M Device Application Scheduling for Radio Access Network Congestion
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Solution Overview
Problem
The increasing number of M2M devices using radio access networks leads to congestion and decreased quality of service for other transmissions, such as speech and Internet traffic, as existing solutions fail to effectively manage the timing of data transmissions to avoid peak usage periods.
Innovation Solution
A radio device equipped with an application scheduling unit that determines a predetermined transmission schedule based on unique parameter values, allowing transmissions only during designated times, thereby distributing the load and optimizing the use of available network capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If M2M devices transmit data freely without scheduling, then device simplicity is maintained, but network congestion occurs during peak usage periods
Solution Approach 1:
The network node performs preliminary scheduling of M2M devices before data transmission occurs. The scheduler determines transmission time slots in advance and notifies devices, preventing congestion before it happens while maintaining simple device operation. This resolves the contradiction by proactively managing network resources without complicating device functionality.
2Reliability
If centralized scheduling is implemented to manage network capacity, then network congestion is reduced, but signaling overhead and system complexity increase
Solution Approach 1:
The scheduling function is segmented and distributed to individual M2M devices rather than being entirely centralized. Each device receives scheduling information tailored to its specific transmission needs, reducing overall signaling overhead while maintaining effective capacity management. This segmentation approach lowers system complexity compared to fully centralized scheduling.
Solution Approach 2:
M2M devices autonomously use the scheduling information provided by the network node to determine their own transmission timing. This self-service approach reduces the need for complex centralized control mechanisms and minimizes signaling overhead, as devices independently execute their scheduled transmissions without requiring continuous network intervention.
3Productivity
If transmission timing is distributed evenly across all devices, then network capacity is optimized, but coordination complexity increases
Solution Approach 1:
The patent combines multiple scheduling parameters (time slots, frequency resources, power levels) into a unified scheduling framework managed by the network node. This merging of coordination functions into a single centralized scheduler optimizes network capacity utilization while avoiding the complexity that would arise from distributed coordination among multiple devices.
Solution Approach 2:
The network node receives feedback from M2M devices about their transmission status and network conditions, using this information to dynamically adjust scheduling decisions. This feedback mechanism enables optimized capacity utilization through adaptive scheduling while keeping coordination complexity manageable by centralizing the decision-making process at the network node.
Data Source
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AI summary
A radio device, comprising an application scheduling unit, which is configured to initiate a transmission of application output data in communication with a radio access network in accordance with a predetermined application transmission schedule determining at least one allowed time, which is a time span or a point in time and defined in terms of a week, a day or a time of day, for the communication of the application output data, wherein the allowed time depends on a parameter value of a set of at least one parameter that is allocated to the radio device and that is suitable for distinguishing the radio device from at least one other radio device of a group of radio devices to which the radio device belongs, and comprising a communication unit, which is configured to transmit the application output data in communication with the radio access network in the form of radio signals and at a time that is in accordance with the predetermined transmission schedule.