公开(公告)号：US11818807B2

公开(公告)日：2023-11-14

申请号：US18101765

申请日：2023-01-26

Applicant: Intel Corporation

Inventor： Claudio Da Silva ,  Carlos Cordeiro ,  Preston Joel Hunt ,  Artyom Lomayev

IPC: H04W88/08 ,  G01S13/56 ,  H04W4/029 ,  H04B17/336 ,  H04W64/00 ,  H04W24/10 ,  H04W84/12

CPC classification number: H04W88/08 ,  G01S13/56 ,  H04B17/336 ,  H04W4/029 ,  H04W24/10 ,  H04W64/006 ,  H04W84/12

Abstract: Embodiments of a STA configured for proximity detection by multiple WLAN link tracking are disclosed herein. In some embodiments, the STA performs WLAN sensing using two or more WLAN links with one or more other STAs to track a channel state of each link and performs motion detection based on the tracked channel state of each WLAN link to detect motion in any of the WLAN links. If motion is detected in at least some of the WLAN links, the STA may perform proximity detection to indicate proximity by combining results of the WLAN sensing for each link to determine whether the motion is proximate to the STA or proximate to one of the other STAs.

公开(公告)号：US20230336214A1

公开(公告)日：2023-10-19

申请号：US18213101

申请日：2023-06-22

Applicant: INTEL CORPORATION

Inventor： Ou Yang ,  Carlos Cordeiro ,  Cheng Chen ,  Oren Kedem

IPC: H04B7/0413 ,  H04L5/00 ,  H04W74/04 ,  H04W72/04

CPC classification number: H04B7/0413 ,  H04L5/0055 ,  H04W74/04 ,  H04W72/04

Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of communicating a Single-User (SU) Multiple-Input-Multiple-Output (MIMO) transmission. For example, a first wireless communication station may be configured to transmit a Request to Send (RTS) to a second wireless communication station via a plurality of SU MIMO Transmit (Tx) sectors of the first wireless communication station, the RTS to establish a Transmit Opportunity (TXOP) to transmit an SU-MIMO transmission to the second wireless communication station, a control trailer of the RTS including an indication of an intent to transmit the SU-MIMO transmission to the second wireless communication station; and to transmit the SU-MIMO transmission to the second wireless communication station, upon receipt of a Clear to Send (CTS) from the second wireless communication station indicating that the second wireless communication station is ready to receive the SU-MIMO transmission.

公开(公告)号：US20230308331A1

公开(公告)日：2023-09-28

申请号：US17972200

申请日：2022-10-24

Applicant: INTEL CORPORATION

Inventor： Artyom Lomayev ,  Alexander Maltsev ,  Claudio Da Silva ,  Carlos Cordeiro

IPC: H04L27/26

CPC classification number: H04L27/26136 ,  H04L27/2613 ,  H04L27/2617 ,  H04L27/262 ,  H04L27/2646 ,  H04L27/2662 ,  H04L27/2666 ,  H04L27/2672 ,  H04L5/0007

Abstract: Some demonstrative embodiments include apparatuses, devices, systems and methods of communicating a PPDU including a training field. For example, an Enhanced Directional Multi-Gigabit (DMG) (EDMG) wireless communication station may be configured to determine one or more Orthogonal Frequency Division Multiplexing (OFDM) Training (TRN) sequences in a frequency domain based on a count of one or more 2.16 Gigahertz (GHz) channels in a channel bandwidth for transmission of an EDMG PPDU including a TRN field; generate one or more OFDM TRN waveforms in a time domain based on the one or more OFDM TRN sequences, respectively, and based on an OFDM TRN mapping matrix, which is based on a count of the one or more transmit chains; and transmit an OFDM mode transmission of the EDMG PPDU over the channel bandwidth, the OFDM mode transmission comprising transmission of the TRN field based on the one or more OFDM TRN waveforms.

公开(公告)号：US20230232484A1

公开(公告)日：2023-07-20

申请号：US18125911

申请日：2023-03-24

Applicant: Intel Corporation

Inventor： Cheng Chen ,  Dibakar Das ,  Carlos Cordeiro

IPC: H04W76/18 ,  H04L5/00 ,  H04L5/14

CPC classification number: H04W76/18 ,  H04L5/0048 ,  H04L5/1438

Abstract: An access point station (AP) configured for performing wireless local area network (WLAN) sensing may establish one or more sensing-by-proxy (SBP) procedures with a non-AP station (STA). The AP may encode an SBP termination frame to terminate one or more of the established SBP procedures by the AP. The SBP termination frame may be encoded to include a Measurement Setup ID field and a SBP Termination Control field that may comprise a Terminate All SBP Setups subfield. The AP may set the Terminate All SBP Setups subfield to a first predetermined value to indicate that the AP is requesting that all established SBP procedures between the SBP initiator (i.e., the STA) and the SBP responder (i.e., the AP) are to be terminated. The AP may set the Terminate All SBP Setups subfield to a second predetermined value to indicate that the AP is requesting that a single one of the established SBP procedures is to be terminated. The SBP procedure to be terminated may be indicated by the Measurement Setup ID field.

公开(公告)号：US11689405B2

公开(公告)日：2023-06-27

申请号：US17483442

申请日：2021-09-23

Applicant: INTEL CORPORATION

Inventor： Alexander Maltsev ,  Carlos Cordeiro ,  Artyom Lomayev ,  Michael Genossar ,  Claudio Da Silva

IPC: H04L27/26 ,  H03M13/11 ,  H04J13/00 ,  H04L1/00

CPC classification number: H04L27/2613 ,  H03M13/11 ,  H04J13/0014 ,  H04L1/0061 ,  H04L27/2605

Abstract: An apparatus of a transmitter may include, for example, a Golay builder to build modulated Golay sequences for at least a non-EDMG Short Training Field (L-STF), and a non-EDMG Channel Estimation Field (L-CEF) of a PPDU; a scrambler to generate scrambled bits by scrambling bits of a non-EDMG header (L-header) and a data field of the PPDU; an encoder to encode the scrambled bits into encoded bits according to a low-density parity-check (LDPC) code; a constellation mapper to map the encoded bits into a stream of constellation points according to a constellation scheme; a spreader to spread the stream of constellation points according to a Golay sequence; and a transmit chain mapper to map a bit stream output from the Golay builder and the spreader to a plurality of transmit chains by applying a spatial expansion with relative cyclic shift over the plurality of transmit chains.

公开(公告)号：US11638202B2

公开(公告)日：2023-04-25

申请号：US16870156

申请日：2020-05-08

Applicant: Intel Corporation

Inventor： Dave A. Cavalcanti ,  Juan Fang ,  Mohammad Mamunur Rashid ,  Carlos Cordeiro ,  Cheng Chen ,  Laurent Cariou ,  Javier Perez-Ramirez ,  Dibakar Das ,  Chittabrata Ghosh

IPC: H04W48/16 ,  H04L43/087 ,  H04W88/08 ,  H04W74/08 ,  H04W72/0446 ,  H04L47/2416

Abstract: An access point (AP) may be configured by processing circuitry to operate as a coordinator AP for performing BSS channel level coordination. The coordinator AP is configured to assign non-overlapping channels to one or more coordinated APs of overlapping BSSs to schedule time-sensitive traffic to help ensure bounded latency, jitter and reliability per BSS. In some embodiments, the AP may be configured for performing transmission level coordination and may initiate a coordinated transmission opportunity (TXOP) for resource assignment to control contention access among managed BSSs. To perform the BSS channel level coordination, the coordinator AP is configured to encode a multi-AP trigger frame (M-TF) to initiate the coordinated TXOP. The M-TF may be encoded to include a time-sensitive operation IE indicating how each STA is to access the channel within the coordinated TXOP.

公开(公告)号：US11621753B2

公开(公告)日：2023-04-04

申请号：US15930885

申请日：2020-05-13

Applicant: Intel Corporation

Inventor： Feng Jiang ,  Qinghua Li ,  Xiaogang Chen ,  Po-Kai Huang ,  Arik Klein ,  Dmitry Akhmetov ,  Carlos Cordeiro ,  Chittabrata Ghosh ,  Ziv Avital ,  Dibakar Das ,  Cheng Chen

IPC: H04B7/06 ,  H04W84/12

Abstract: An access point (AP) may operate as a master AP (AP1) to perform multi-AP coordinated beamforming (CBF). The AP1 may to initiate a first sounding sequence with one or more STAs associated with the AP1 (BSS STAs) and the one or more STAs associated with a second AP (AP2) (OBSS STAs). In these embodiments, initiation of the first sounding sequence triggers the AP2 to join the sounding sequence to initiate a second sound sequence with the BSS STAs and the OBSS STAs.

公开(公告)号：US11558750B2

公开(公告)日：2023-01-17

申请号：US16868334

申请日：2020-05-06

Applicant: Intel Corporation

Inventor： Po-Kai Huang ,  Laurent Cariou ,  Carlos Cordeiro ,  Daniel Bravo ,  Robert Stacey ,  Arik Klein ,  Avner Epstein ,  Daniel Leiderman

IPC: H04L29/06 ,  H04W12/50 ,  H04W12/06 ,  H04L9/40 ,  H04W76/15 ,  H04W12/10 ,  H04W12/041 ,  H04W84/12 ,  H04L101/622

Abstract: This disclosure describes systems, methods, and devices related to security for multi-link operation. A device may determine a multi-link communication with a first multi-link device comprising two or more links associated with two or more station devices (STAs) included in the first multi-link device. The device may determine a first medium access control (MAC) address associated with a first link of the two or more links. The device may determine a second MAC address associated with a second link of the two or more links. The device may generate one or more pairwise security keys to be used in the multi-link communication on the two or more links. The device may cause to send a frame to the first multi-link device using at least one combination of the one or more pairwise security keys.

公开(公告)号：US11552680B2

公开(公告)日：2023-01-10

申请号：US17030948

申请日：2020-09-24

Applicant: INTEL CORPORATION

Inventor： Ou Yang ,  Carlos Cordeiro ,  Cheng Chen ,  Oren Kedem

IPC: H04W4/00 ,  H04B7/0413 ,  H04L5/00 ,  H04W72/04 ,  H04W74/04

Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of communicating a Single-User (SU) Multiple-Input-Multiple-Output (MIMO) transmission. For example, a first wireless communication station may be configured to transmit a Request to Send (RTS) to a second wireless communication station via a plurality of SU MIMO Transmit (Tx) sectors of the first wireless communication station, the RTS to establish a Transmit Opportunity (TXOP) to transmit an SU-MIMO transmission to the second wireless communication station, a control trailer of the RTS including an indication of an intent to transmit the SU-MIMO transmission to the second wireless communication station; and to transmit the SU-MIMO transmission to the second wireless communication station, upon receipt of a Clear to Send (CTS) from the second wireless communication station indicating that the second wireless communication station is ready to receive the SU-MIMO transmission.

公开(公告)号：US20220394818A1

公开(公告)日：2022-12-08

申请号：US17888147

申请日：2022-08-15

Applicant: Intel Corporation

Inventor： Bahareh Sadeghi ,  Carlos Cordeiro ,  Claudio Da Silva ,  Cheng Chen

IPC: H04W88/10 ,  H04B7/06 ,  H04B7/0452 ,  H04W12/30 ,  H04W12/63

Abstract: An access point (AP) configured for wireless local area network (WLAN) sensing is configured to encode a trigger frame (TF) for transmission. The trigger frame allocates resource units (RUs) for receiving high-efficiency (HE) trigger-based (TB) physical-layer protocol data units (PPDUs) (HE TB PPDUs) from a plurality of client devices (non-AP STAs). The trigger frame may solicit each of the client devices to transmit an HE TB PPDU in accordance with an UL OFDMA technique or an UL MU-MIMO technique. The AP may decode the HE TB PPDUs received from the client devices and may estimate channel state information (CSI) for a radio link associated with each of the client devices based on an HE-LTF of an associated one of the HE-TB PPDUs received from one of the client devices. In accordance with these embodiments, the AP may process changes in the CSI of the radio links over time for a WLAN sensing application.