Itron has been granted a patent for techniques that use communication metric data from multiple modulation schemes to determine a link quality metric for a communication link. The method involves calculating an expected transmission (ETX) and applying a filtering calculation to the ETX. The link quality metric is determined based on the communication metric data from the different modulation schemes, with weighting coefficients based on the number of transmission attempts made for each modulation scheme. GlobalData’s report on Itron gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Itron, V2G smart metering was a key innovation area identified from patents. Itron's grant share as of September 2023 was 53%. Grant share is based on the ratio of number of grants to total number of patents.
Link quality metric calculation across multiple modulation schemes
A recently granted patent (Publication Number: US11777638B2) describes a method and network communication device for determining link quality metric data in a communication network. The method involves communicating between nodes using different modulation schemes and determining communication metric data for each scheme. The link quality metric data is then determined based on the communication metric data, using a filtering calculation and weighting coefficients. The patent also describes a network communication device that includes a radio, processors, and memory for performing the method.
The method involves communicating between a first node and a second node using a first modulation scheme and determining first communication metric data. The first node then communicates with the second node using a second modulation scheme and determines second communication metric data. The link quality metric data associated with the communication link is determined based on the first and second communication metric data. This determination includes calculating an expected transmission (ETX) at a defined epoch and applying a filtering calculation to the ETX. The link quality metric data is further determined by applying a first weighting coefficient to the first communication metric data and a second weighting coefficient to the second communication metric data. The first weighting coefficient is based on the number of transmission attempts made according to the first modulation scheme, while the second weighting coefficient is based on the number of transmission attempts made according to the second modulation scheme.
The patent also describes a network communication device that includes a radio, processors, and memory. The device performs the method by communicating with a second network communication device using different modulation schemes and determining communication metric data. The link quality metric data associated with the communication link is determined based on the communication metric data, using a filtering calculation and weighting coefficients.
Overall, this patent presents a method and network communication device for determining link quality metric data in a communication network. By using different modulation schemes and weighting coefficients, the method aims to provide accurate and reliable link quality measurements for efficient communication in the network.
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