公开(公告)号：US20200021979A1

公开(公告)日：2020-01-16

申请号：US16335510

申请日：2017-10-24

Applicant: Intel IP Corporation

Inventor： Jonathan Segev ,  Qinghua Li ,  Benny Abramovsky ,  Feng Jiang

IPC: H04W12/00 ,  H04L27/26 ,  H04J3/06 ,  H04L5/00 ,  H04W12/10 ,  H04W72/04 ,  H04W72/12

Abstract: Methods, apparatus, and computer-readable media are described to encode a trigger frame for a second station (STA2). A first sounding frame for the STA2 is generated. The first timestamp is associated with a transmission of the first sounding frame. A second sounding frame from the STA2 based upon the first sounding frame is decoded. The second sounding frame includes a holding time indication associated with a second timestamp and a third timestamp. A fourth timestamp is associated with receiving the second sound frame. The holding time indication is protected. A round-trip time is calculated based upon the first timestamp, the holding time indication, and the fourth timestamp.

公开(公告)号：US10715995B2

公开(公告)日：2020-07-14

申请号：US16335510

申请日：2017-10-24

Applicant: Intel IP Corporation

Inventor： Jonathan Segev ,  Qinghua Li ,  Benny Abramovsky ,  Feng Jiang

IPC: H04W12/00 ,  H04W12/10 ,  H04J3/06 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W72/12

Abstract: Methods, apparatus, and computer-readable media are described to encode a trigger frame for a second station (STA2). A first sounding frame for the STA2 is generated. The first timestamp is associated with a transmission of the first sounding frame. A second sounding frame from the STA2 based upon the first sounding frame is decoded. The second sounding frame includes a holding time indication associated with a second timestamp and a third timestamp. A fourth timestamp is associated with receiving the second sound frame. The holding time indication is protected. A round-trip time is calculated based upon the first timestamp, the holding time indication, and the fourth timestamp.

公开(公告)号：US20200029236A1

公开(公告)日：2020-01-23

申请号：US16487986

申请日：2017-09-27

Applicant: INTEL IP CORPORATION

Inventor： Jonathan Segev ,  Benny Abramovsky ,  Qinghua Li ,  Chittabrata Ghosh ,  Feng Jiang

IPC: H04W24/10 ,  H04L25/02 ,  G01S13/82 ,  H04W88/08 ,  H04W88/06 ,  H04W72/04

Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of Multi-User (MU) ranging measurement. For example, an apparatus may include circuitry and logic configured to cause a wireless station to generate a plurality of sounding sequences corresponding to a plurality of stations (STAs), the plurality of sounding sequences including at least first and second different sounding sequences, the first sounding sequence corresponding to at least one first STA of the plurality of STAs, the second sounding sequence corresponding to at least one second STA of the plurality of STAs; during a Multi-User (MU) ranging measurement, to transmit a MU frame to indicate a MU Downlink (DL) transmission; and, following the MU frame, to transmit a MU DL Null Data Packet (NDP) transmission to the plurality of STAs, the MU DL NDP transmission including a plurality of Long Training Fields (LTFs) including the plurality of sounding sequences.

公开(公告)号：US20190132294A1

公开(公告)日：2019-05-02

申请号：US16177703

申请日：2018-11-01

Applicant: Intel IP Corporation

Inventor： Qinghua Li ,  Jonathan Segev ,  Benny Abramovsky ,  Danny Alexander ,  Xiaogang Chen ,  Chittabrata Ghosh ,  Feng Jiang ,  Ido Ouzieli ,  Robert Stacey

IPC: H04L29/06 ,  H04L9/32 ,  H04W12/06 ,  H04W12/10 ,  G01S13/76

Abstract: The disclosure provides some embodiments for securing long training field (LTF) sequence. A responding station (RSTA) configures a location management report (LMR) frame. The LMR frame is configured to include an LMR in respect of a previous measurement, and data to be used to generate a null data packet (NDP) for a current measurement that is to be performed following the previous measurement. The RSTA further encrypts the LMR frame using protected management frames (PMF) scheme, and transmits the encrypted LMR frame to an initiating station (ISTA) for generating an LTF sequence for the current measurement. In response to receiving an NDP announcement (NDPA) and an NDP for the current measurement from the ISTA, the RSTA generates an NDP for the current measurement based on the NDPA and the data using CCMP, and transmits the NDP to the ISTA.