公开(公告)号：US09930692B2

公开(公告)日：2018-03-27

申请号：US14979280

申请日：2015-12-22

Applicant: Intel IP Corporation

Inventor： Qinghua Li ,  Xiaogang Chen ,  Ran Shimon ,  Robert Stacey ,  Assaf Gurevitz

IPC: H04W74/00 ,  H04W84/12

CPC classification number: H04W74/004 ,  H04W74/008 ,  H04W84/12

Abstract: This disclosure describes methods, apparatus, and systems related to early indication system. A device may identify a high efficiency frame in accordance with a high efficiency communication standard, received from a first device, the high efficiency frame including, at least in part, one or more legacy signal fields and one or more high efficiency signal fields. The device may determine a length field included in one of the one or more legacy signal fields, wherein the length field includes an indication bit. The device may determine a position of a high efficiency short training field within the high efficiency frame based at least in part on the indication bit.