MTC Base Station Scheduling for Signal Overhead and Power Reduction
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Solution Overview
Problem
In Machine to Machine (MTC) communication systems, existing technologies face challenges in minimizing overhead and power consumption in mobile communication networks, particularly in Radio Access Networks (RAN), due to inefficient signal transmission and reception processes.
Innovation Solution
The implementation of a base station device and method that includes a transceiver and control unit for transmitting and receiving signals only at specific time points within scheduling intervals, utilizing Semi Persistence Scheduling (SPS) and a 'lazy/snooze' state for MTC devices to optimize signal allocation and power usage, with an MTC gateway managing communication for multiple devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous signal transmission and reception is implemented in MTC devices, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic signal transmission and reception at specific time points within scheduling intervals rather than continuous communication. Devices wake up at predetermined times to transmit or receive signals and then return to sleep state, achieving periodic action that reduces power consumption while maintaining communication reliability through scheduled intervals.
2Loss of information
If frequent signal transmission is performed in MTC systems, then data freshness is improved, but network overhead increases
Solution Approach 1:
The system schedules signal transmissions at specific periodic intervals rather than continuously. The base station and MTC devices exchange signals only at predetermined time points within scheduling intervals, reducing network overhead while maintaining data freshness through regular periodic updates.
Solution Approach 2:
The base station preliminarily determines and notifies MTC devices of specific time points for signal transmission and reception. Devices prepare and execute transmissions only at these pre-scheduled moments, optimizing resource allocation and reducing unnecessary network overhead while ensuring data is transmitted in a timely manner.
Data Source
AI summary
The present disclosure relates to a technology for a sensor network, a machine-to-machine (M2M) communication, machine type communication (MTC), and the Internet of things (IoT). The present disclosure can be utilized for the intelligent service (a smart home, a smart building, a smart city, a smart car or a connected car, healthcare, digital education, a retail business, a security and safety-related service or the like) on the basis of the technology. Embodiments of the present invention provide a device and a method for minimizing an overhead of a mobile communication network in a machine type communication (MTC) system and minimizing power consumption in devices for MTC. According to an embodiment of the present invention, a base station device of a mobile communication network for M2M communication comprises: a transceiver for transmitting and receiving a signal to/from a leader device among a plurality of devices for M2M communication; and a control unit for transmitting, to the reader device, a downlink control signal through the transceiver in at least one predetermined interval within a scheduling interval and receiving, from the reader device, an uplink signal through the transceiver at a specific time point determined from the predetermined interval within the scheduling interval.