公开(公告)号：US20210194541A1

公开(公告)日：2021-06-24

申请号：US17119831

申请日：2020-12-11

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kumaran VIJAYASANKAR ,  Ramanuja VEDANTHAM ,  Tarkesh PANDE

IPC: H04B3/54

Abstract: Embodiments of methods and systems for supporting coexistence of multiple technologies in a Power Line Communication (PLC) network are disclosed. A long coexistence preamble sequence may be transmitted by a device that has been forced to back off the PLC channel multiple times. The long coexistence sequence provides a way for the device to request channel access from devices on the channel using other technology. The device may transmit a data packet after transmitting the long coexistence preamble sequence. A network duty cycle time may also be defined as a maximum allowed duration for nodes of the same network to access the channel. When the network duty cycle time occurs, all nodes will back off the channel for a duty cycle extended inter frame space before transmitting again. The long coexistence preamble sequence and the network duty cycle time may be used together.