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US 12,177,323 B2Granted
Building, transmitting, and receiving frame structures in power line communications
AssigneeTexas Instruments Incorporated
InventorsAnand G. Dabak, Badri N. Varadarajan, Il Han Kim, Tarkesh Pande
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Abstract
Methods for building, transmitting, and receiving frame structures in power line communications (PLC) are described. Various techniques described herein provide a preamble design using one or more symbols. One or more preamble symbols may be interspersed within a header portion of a PLC frame to facilitate estimation of a frame boundary and/or sampling frequency offset, for example, in the presence of impulsive noise.
Claims20
A method comprising:
- identifying a first symbol and a second symbol within a preamble;
- inserting an instance of the first symbol within a header portion of a first frame;
- inserting an instance of the second symbol within the header portion of the first frame;
- transmitting the first frame via an interface;
- receiving a second frame;
- locating a position of a preamble symbol within a header portion of the second frame;
- and
- estimating a sampling frequency offset based on the located position of the preamble symbol.
5 more elements
Dependencies are inferred from the claim text.