Wireless Sampling Data Bundling for Smart Grid QoS
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Solution Overview
Problem
Current wireless solutions for transmitting high-rate sampling values in smart electrical grid environments face challenges in meeting stringent quality of service (QoS) requirements, particularly in terms of latency and reliability, due to high overhead and resource waste.
Innovation Solution
A method and apparatus for transmitting data streams comprising multiple samples between wireless devices using machine-to-machine communication, where a first wireless device bundles multiple samples into fewer data packets, reducing transmission overhead and maintaining connection with a second wireless device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-rate sampling values are transmitted using conventional wired solutions, then reliability and QoS requirements are met, but deployment cost and complexity increase
Solution Approach 1:
The patent replaces wired mechanical connections with wireless communication systems. The wireless device transmits sampled values using radio frequency signals instead of physical cables, eliminating the need for physical deployment while maintaining communication reliability through protocol-level error correction and retransmission mechanisms.
Solution Approach 2:
The patent changes transmission parameters including packet size, sampling rate, and modulation schemes to optimize wireless transmission. By adjusting these parameters, the system achieves reliable wireless transmission of sampling data without requiring wired infrastructure, thus reducing deployment complexity while maintaining QoS requirements.
2Adaptability or versatility
If high-rate sampling values are transmitted wirelessly using short session times and short packets, then wireless flexibility is achieved, but overhead and resource waste increase
Solution Approach 1:
The patent merges multiple short sampling packets into larger aggregated packets for transmission. Instead of sending individual short packets for each sampling value, the system collects multiple samples and transmits them together in consolidated packets, reducing the number of transmission sessions and associated overhead while maintaining wireless flexibility.
Solution Approach 2:
The patent establishes continuous wireless connections with extended session times rather than frequent short sessions. This allows sampling data to be transmitted continuously over the wireless link, reducing the overhead associated with session establishment and teardown while maintaining the adaptability of wireless communication.
3Reliability
If high-rate sampling values are transmitted with stringent QoS requirements, then reliability is improved, but latency and resource usage increase
Solution Approach 1:
The patent performs preliminary actions by pre-configuring wireless resources, establishing connection priorities, and pre-allocating transmission slots before actual data transmission. This preparation reduces the time required for actual data sending while ensuring reliable delivery, as the communication path and resources are already reserved and optimized.
Solution Approach 2:
The patent implements dynamic transmission strategies that adjust packet size, sampling rate, and transmission power based on current network conditions and QoS requirements. This dynamic adaptation allows the system to maintain high reliability when needed while minimizing latency by reducing transmission overhead during less critical periods.
Data Source
AI summary
Embodiments described herein provide methods and apparatus for transmitting at least one data stream comprising a plurality of samples between a first wireless device and a second wireless device using machine-to-machine communication. A method in the first wireless device comprises receiving the at least one data stream; generating a first data packet comprising N of the plurality of samples, wherein N is an integer value of greater than or equal to 2; and transmitting the first data packet to the second wireless device.