Channel selection in power line communications

摘要

Systems for channel selection in power line communications (PLC) are described. In some embodiments, a PLC device may include a processor and a memory. The memory stores instructions executable by the processor to cause the PLC device perform operations. One or more time slots in each of a plurality of frequency bands are sequentially scanned. A packet transmitted by a second PLC device to the PLC device over one of the plurality of frequency bands is detected. Additional packets received from the second PLC device are synchronized across the plurality of frequency bands based, at least in part, upon the detected packet. The additional packets are organized in a plurality of frames. Each of the plurality of frames having been transmitted by the second PLC device to the PLC device over a respective one of the plurality of frequency bands. Each frame has a plurality of time slots, and each time slot has a pair of beacon and bandscan packets.

主权项

1. A power line communication (PLC) device comprising:
a processor; and a memory coupled to the processor, the memory configured to store program instructions executable by the processor to cause the PLC device to:
sequentially scan one or more time slots in each of a plurality of frequency bands;detect a packet transmitted by a second PLC device to the PLC device over one of the plurality of frequency bands; andsynchronize additional packets received from the second PLC device across the plurality of frequency bands based, at least in part, upon the detected packet, wherein the additional packets are organized in a plurality of frames, each of the plurality of frames having been transmitted by the second PLC device to the PLC device over a respective one of the plurality of frequency bands, each frame having a plurality of time slots, and each time slot having a pair of beacon and bandscan packets, wherein the beacon packets are configured to inform the PLC device that the second PLC device is active and wherein each bandscan packet includes a slot index indicating a position of its time slot within its respective frame and a band index indicating a corresponding one of the plurality of frequency bands.