Relay Device Aggregating M2M Data to Reduce Connection Overhead
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Solution Overview
Problem
Machine-to-machine (M2M) devices with limited RF transmission power face challenges in uplink communication to a base station, leading to inefficiencies and high overhead, especially in scenarios with a high density of sensors, where the setup and tear-down of UE-to-WAN connections are frequent.
Innovation Solution
An apparatus and method for aggregating data from multiple M2M devices and delivering it to a base station via a relay device, which caches messages and sends them in bulk when a trigger condition is met, reducing the need for frequent connections and improving scalability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If MTC devices use individual uplink connections to base station, then data can be transmitted directly, but connection setup overhead increases and power efficiency decreases
Solution Approach 1:
The patent combines multiple individual MTC device data transmissions into a single aggregated uplink connection through the relay device. Instead of each MTC device establishing separate connections to the base station, the relay device collects data from multiple devices and transmits aggregated data in one connection, thereby reducing connection setup overhead and improving transmission efficiency.
Solution Approach 2:
The relay device acts as an intermediary between MTC devices and the base station. It receives discovery signals from MTC devices, pages them to establish communication, collects their data, and then transmits the aggregated data to the base station. This intermediary approach eliminates the need for each MTC device to directly manage complex base station connections.
2Reliability
If MTC devices establish frequent UE-to-WAN connections for data delivery, then data can be delivered reliably, but power consumption increases
Solution Approach 1:
The patent merges multiple individual data delivery operations into a single aggregated transmission. By combining data from multiple MTC devices into one uplink connection, the system reduces the frequency of connection establishment and teardown cycles, thereby lowering power consumption while maintaining reliable data delivery through the relay device's buffering and aggregation capabilities.
3Ease of operation
If MTC devices communicate individually with base station, then direct communication is achieved, but scalability decreases in high-density scenarios
Solution Approach 1:
The patent merges individual communication paths into a consolidated aggregation path. The relay device collects data from multiple MTC devices and transmits it as a single aggregated stream to the base station, enabling the system to scale to high-density scenarios where individual direct connections would create excessive overhead and manageability issues.
Data Source
AI summary
Data received from multiple devices (e.g., machine-to-machine devices, machine type communication devices, and so on) is aggregated and delivered to another device (e.g., a base station). In this way, the data is efficiently transmitted to the other device, for example, in scenarios where the devices that source the data have limited transmission capabilities.