公开(公告)号：US10772056B2

公开(公告)日：2020-09-08

申请号：US16049732

申请日：2018-07-30

Applicant: Marvell World Trade Ltd.

Inventor： Hari Balakrishnan ,  Sri Varsha Rottela ,  Rui Cao ,  Hongyuan Zhang ,  Sudhir Srinivasa ,  Hua Mu ,  Xiayu Zheng

IPC: H04W56/00 ,  H04W72/04 ,  H04W52/02 ,  H04L27/12 ,  H04W84/12

Abstract: A first communication device generates a first portion and a second portion of a wakeup radio (WUR) wakeup packet. The first portion of the WUR wakeup packet corresponds to a wireless local area network (WLAN) legacy preamble, and spans a first frequency bandwidth. The second portion of the WUR wakeup packet spans a second bandwidth that is less than the first bandwidth, and is configured to cause a WUR of a second communication device to cause a WLAN network interface device of the second communication device to transition from a low power state to the active state. Generating the second portion of the WUR wakeup packet includes i) generating a sync portion having a plurality of sync symbols, and ii) generating a wakeup packet body. The first communication device transmits the WUR wakeup packet.