CELL ISOLATION THROUGH QUASI-ORTHOGONAL SEQUENCES IN A FREQUENCY HOPPING NETWORK
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Abstract
The present technology relates to protocols relative to utility meters associated with an open operational framework. More particularly, the present subject matter relates to protocol subject matter for advanced metering infrastructure, adaptable to various international standards, while economically supporting a 2-way mesh network solution in a wireless environment, such as for operating in a residential electricity meter field. The present subject matter supports meters within an ANSI standard C12.22/C12.19 system while economically supporting a 2-way mesh network solution in a wireless environment, such as for operating in a residential electricity meter field, all to permit cell-based adaptive insertion of C12.22 meters within an open framework. Cell isolation is provided through methodology and apparatus subject matter relating to quasi-orthogonal sequences in a frequency hopping network.
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Citations
34 Claims
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1-25. -25. (canceled)
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26. Methodology for generating a pseudo-random sequence for use in an advanced metering system frequency hopping network, comprising:
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establishing a network including a central facility and a plurality of end devices, at least some of which end devices comprise metrology devices, and wherein each end device is associated with one of a plurality of cells, each cell being assigned a unique cell identifier; constructing an outer hopping sequence for a given cell using the given cell'"'"'s unique cell identifier as a seed; using the elements of the outer hopping sequence to select a specific N-hop inner hopping sequence, where integer N is the number of channels used by the advanced metering system frequency hopping network; and applying the selected sequence as a transceiver hopping pattern for a selected end device within the given cell. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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Specification