Broadcom Corporation

Toby Edward Ralph Bailey

Xavier Josep Reves Balleste

Yue Sun

Oriol Agusti Costa

Miguel Philippe Paul Peeters

Zacarias Iracheta Todo

Systems and methods according to aspects of the subject technology provide non-interruptive filtering of transmission line communications. The non-interruptive filtering may physically isolate, in the frequency domain, independent networks that share a common transmission media, such as mains wires that are used to deliver both alternating current (AC) power and power line communication signals. The isolation provided by the non-interruptive filtering prevents the transmissions from the independent networks from interfering with each other. In one or more implementations, the non-interruptive filtering may be provided by one or more filters that include cores, such as ferrite cores, around which two mains wires, e.g. a mains live wire and a mains neutral wire, can be wound in opposite directions, respectively. Currents traveling on the mains wires through the filter in opposite phases cancel each other out, thereby blocking symmetric power line transmissions, while allowing AC power to pass through.

Non-interruptive filtering of transmission line communications

A system for coordinating transmissions of power line communication (PLC) devices may include a processor and a memory. The processor may be configured to receive channel state information (CSI) from primary PLC devices. The primary PLC devices may be communicatively coupled to secondary PLC devices via collocated power lines, such as bundled power lines. Thus, the transmission of a primary PLC device over a power line to a secondary PLC device may be electromagnetically coupled onto the other power lines, thereby causing far-end crosstalk (FEXT) interference with respect to other secondary PLC devices. The processor may be configured to determine precoding information for compensating for the FEXT interference based at least on the received CSI. The processor may be configured to provide at least a portion of the precoding information to the primary PLC devices and to coordinate precoded transmissions of the primary PLC devices to mitigate the FEXT interference.

Growing community of inventors

Innerleithen, United Kingdom

Toby Edward Ralph Bailey