公开(公告)号：US10834755B2

公开(公告)日：2020-11-10

申请号：US16322088

申请日：2017-09-29

Applicant: Intel IP Corporation

Inventor： Xiaogang Chen ,  Qinghua Li ,  Laurent Cariou ,  Feng Jiang

IPC: H04B7/06 ,  H04J11/00 ,  H04L5/00 ,  H04L5/02 ,  H04L27/00 ,  H04L27/20 ,  H04L27/26 ,  H04W72/04 ,  H04W74/00 ,  H04W74/06 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  H04W92/10

Abstract: Apparatuses, computer readable media, and methods for physical layer short feedback. An apparatus of a high efficiency (HE) station is disclosed. The apparatus comprising circuitry configured to: decode a trigger frame for short feedback, the trigger frame comprising an indication of a resource unit (RU) to respond to a short feedback request, where the RU comprises one or more tones and one or more symbols. The circuitry may be further configured to encode a short feedback response to the short feedback request on the RU, where each of the one or more tones of the RU is to be encoded with one or more of: a positive signal, a negative signal, and no signal. The circuitry may be further configured to configure the HE station to transmit the short feedback response to an access point in accordance with orthogonal frequency division multiple access (OFDMA) using resources of the RU.

公开(公告)号：US10686628B2

公开(公告)日：2020-06-16

申请号：US15719392

申请日：2017-09-28

Applicant: Intel IP Corporation

Inventor： Yuval Amizur ,  Chittabrata Ghosh ,  Jonathan Segev ,  Feng Jiang ,  Qinghua Li ,  Nir Dvorecki ,  Robert J. Stacey

IPC: H04L25/02 ,  H04W24/10 ,  H04B1/00 ,  H04L27/00 ,  H04W88/02 ,  H04W84/12 ,  H04W88/08 ,  H04L27/26

Abstract: Embodiments of an access point (AP), station (STA) and method of sounding are generally described herein. The AP may transmit, during a transmission opportunity (TXOP), a trigger frame (TF) to indicate that an STA is to transmit an uplink sounding packet during an uplink sounding period of the TXOP. The AP may attempt to detect the uplink sounding packet during the uplink sounding period. If the uplink sounding packet is not detected during the uplink sounding period, the AP may transmit a recovery packet to cause other STAs to determine a busy condition during the uplink sounding period. If the uplink sounding packet is detected during the uplink sounding period, the AP may determine a channel estimate for the STA based at least partly on the uplink sounding packet.

公开(公告)号：US20190190752A1

公开(公告)日：2019-06-20

申请号：US16322088

申请日：2017-09-29

Applicant: Intel IP Corporation

Inventor： Xiaogang Chen ,  Qinghua Li ,  Laurent Cariou ,  Feng Jiang

IPC: H04L27/20 ,  H04L5/02 ,  H04L27/00 ,  H04L27/26 ,  H04B7/06

Abstract: Apparatuses, computer readable media, and methods for physical layer short feedback. An apparatus of a high efficiency (HE) station is disclosed. The apparatus comprising circuitry configured to: decode a trigger frame for short feedback, the trigger frame comprising an indication of a resource unit (RU) to respond to a short feedback request, where the RU comprises one or more tones and one or more symbols. The circuitry may be further configured to encode a short feedback response to the short feedback request on the RU, where each of the one or more tones of the RU is to be encoded with one or more of: a positive signal, a negative signal, and no signal. The circuitry may be further configured to configure the HE station to transmit the short feedback response to an access point in accordance with orthogonal frequency division multiple access (OFDMA) using resources of the RU.

公开(公告)号：US20190059101A1

公开(公告)日：2019-02-21

申请号：US16168454

申请日：2018-10-23

Applicant: Intel IP Corporation

Inventor： Feng Jiang ,  Chittabrata Ghosh ,  Qinghua Li ,  Jonathan Segev ,  Ganesh Venkatesan

IPC: H04W74/06 ,  H04W24/10 ,  H04W4/02 ,  H04W72/04

Abstract: This disclosure describes systems, methods, and devices related to uplink location measurement report (LMR) feedback. A device may perform availability window negotiation during a negotiation phase of a location determination associated with a first initiating device of one or more initiating devices. The device may determine a status of a first LMR associated with the first initiating device. The device may cause to send a polling request to one more initiating devices during a first availability window. The device may identify a polling response from at least one of the one or more initiating devices. The device may perform one or more sounding measurements with the at least one of the one or more initiating devices during a measurement phase. The device may cause to send a trigger frame to the at least one of the one or more initiating devices.

公开(公告)号：US20210368350A1

公开(公告)日：2021-11-25

申请号：US16646319

申请日：2017-12-20

Applicant: Intel IP Corporation

Inventor： Laurent Cariou ,  Xiaogang Chen ,  Feng Jiang ,  Qinghua Li

IPC: H04W16/14

Abstract: Methods, apparatus, and computer-readable media are described for notching a 6 GHz channel. A station associates with an access point on a 6 GHz band. A notching pattern indication is decoded from data received from the AP after associating with the AP. A notching region within a channel within the 6 GHz band is determined based on the notching pattern indication. The notching pattern indicates a width of a notching region and a location of the notching region within the channel. The notching region covers bandwidth occupied by an incumbent system within the channel. A physical layer convergence procedure (PLCP) protocol data unit (PPDU) is encoded for transmission on the channel to the AP. The PPDU is encoded to exclude transmission within the notching region.

公开(公告)号：US20210211326A1

公开(公告)日：2021-07-08

申请号：US17210364

申请日：2021-03-23

Applicant: Intel IP Corporation

Inventor： Feng Jiang ,  Robert Stacey ,  Jonathan Segev ,  Qinghua Li ,  Xiaogang Chen

IPC: H04L25/02 ,  H04W24/10 ,  H04W74/08 ,  H04L5/00

Abstract: This disclosure describes systems, methods, and devices related to a trigger-based null data packet (NDP) for channel sounding system. A device may send a trigger frame to a group of station devices, the group of station devices including a first station device, the trigger frame indicating a high efficiency (HE) long training field (HE-LTF) mode and a guard interval duration. The device may identify a HE trigger-based (TB) null data packet (NDP) received from the first station device, the HE TB NDP including a first packet extension field, wherein the HE TB NDP is associated with the HE-LTF mode and the guard interval duration indicated in the trigger frame. The device may send a downlink NDP including a second packet extension field, a second HE-LTF mode, and a second guard interval duration. The device may determine channel state information based on HE TB NDP received from the first station device.

公开(公告)号：US11039306B2

公开(公告)日：2021-06-15

申请号：US16202559

申请日：2018-11-28

Applicant: Intel IP Corporation

Inventor： Qinghua Li ,  Feng Jiang ,  Chen Xiaogang ,  Jonathan Segev ,  Robert J. Stacey

IPC: H04L29/06 ,  H04W12/00 ,  H04W12/069

Abstract: Methods, apparatuses, and computer readable media for location measurement reporting in a wireless network are disclosed. An apparatus of an initiator station (ISTA), where the apparatus comprises processing circuitry configured to decode a null data packet (NDP) announce (NDPA) frame from an initiator station (ISTA), the NDPA frame comprising a dialog token and an identification of a temporary key. The processing circuitry may be further configured to decode a first NDP from the ISTA, the NDP comprising first long training fields (LTFs), and wherein the NDP is received on a channel and encode a second NDP, the second NDP comprising second LTFs, wherein the second LTFs are determined based at least on the temporary key. The processing circuitry may be further configured to encode a location measurement report (LMR), the LMR comprising the dialog token and an indication of the temporary key.

公开(公告)号：US10979169B2

公开(公告)日：2021-04-13

申请号：US16382531

申请日：2019-04-12

Applicant: Intel IP Corporation

Inventor： Po-Kai Huang ,  Feng Jiang ,  Xiaogang Chen ,  Qinghua Li ,  Robert J. Stacey ,  Laurent Cariou

IPC: H04L1/00 ,  H04W40/24 ,  H04W80/02 ,  H04W72/04 ,  H04W84/12

Abstract: Methods, apparatuses, and computer readable media for high efficiency (HE) beacon and HE formats in a wireless network are disclosed. An apparatus of a high efficiency (HE) access point (AP), where the apparatus comprises processing circuitry configured select a tuple from the basic HE-MCS set of tuples, if a basic HE modulation and control scheme (MCS)(HE-MCS) and a number of spatial streams (NSS) set of tuples is not empty, and otherwise select the tuple from a mandatory HE-MCS and NSS set of tuples. The processing circuitry may be further configured to encode a beacon frame in a HE single user (SU) physical layer (PHY) protocol data unit (PPDU), in accordance with the selected tuple, and configure the HE AP to transmit the HE SU PPDU. Null data packets formats, methods, computer readable media, and apparatuses are disclosed for multiple 20 MHz operations.

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.