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：US20200014564A1

公开(公告)日：2020-01-09

申请号：US16513385

申请日：2019-07-16

Applicant: Intel IP Corporation

Inventor： Qinghua Li ,  Chittabrata Ghosh ,  Robert J. Stacey ,  Xiaogang Chen ,  Po-Kai Huang

IPC: H04L25/02 ,  H04W52/14 ,  H04L5/00 ,  H04W52/24 ,  H04W72/08

Abstract: Computing readable media, apparatuses, and methods for signaling for uplink sounding are disclosed. An apparatus is disclosed comprising processing circuitry. The processing circuitry may be configured to: decode a trigger frame comprising a resource unit (RU) allocation, and a spatial stream (SS) allocation for the first wireless device to transmit an uplink (UL) sounding signal, where the trigger frame include an indication that the trigger frame is for the UL sounding signal. The processing circuitry may be further configured to: determine a path loss based on the indication of the transmit power and a received power of the trigger frame at the first wireless device. The processing circuitry may be configured to: determine a transmit power for the UL sounding signal based on the path loss; and transmit the UL sounding signal in accordance with the RU allocation, the SS allocation, and the transmit power.

公开(公告)号：US10405273B2

公开(公告)日：2019-09-03

申请号：US15915950

申请日：2018-03-08

Applicant: Intel IP Corporation

Inventor： Xiaogang Chen ,  Qinghua Li ,  Assaf Gurevitz ,  Tzahi Weisman

IPC: H04W52/00 ,  H04W52/02 ,  H04L5/00 ,  H04W52/34 ,  H04W84/12

Abstract: Embodiments of an access point (AP), station (STA) and method for subcarrier scaling are generally described herein. The AP may transmit a high efficiency (HE) physical layer convergence procedure (PLCP) protocol data unit (PPDU) that includes a legacy long training field (L-LTF), a legacy signal (L-SIG) field, and an HE signal (HE-SIG) field. The HE-SIG may be based on HE-SIG symbols mapped to a group of HE subcarriers that includes legacy subcarriers and HE extension subcarriers. The L-LTF may be based on L-LTF pilot symbols mapped to the legacy subcarriers. The L-SIG may be based on L-SIG legacy symbols mapped to the legacy subcarriers and L-SIG extension pilot symbols mapped to the HE extension subcarriers. The AP may scale a per-subcarrier power of the L-SIG extension pilot symbols to match a per-subcarrier power of the L-LTF pilot symbols.

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：US10231214B2

公开(公告)日：2019-03-12

申请号：US15472920

申请日：2017-03-29

Applicant: Intel IP Corporation

Inventor： Xiaogang Chen ,  Laurent Cariou ,  Po-Kai Huang ,  Qinghua Li ,  Robert Stacey

IPC: H04W16/14 ,  H04W72/04 ,  H04W84/12

Abstract: A legacy WiFi communication may contain information to permit a receiver to know of the presence of a parallel new band (NB) communication, and to receive that information in time to know how to receive the NB communication. In various embodiments, this information may be contained in the L-SIG, RL-SIG, and/or HE-SIG-A subfields of a single user PPDU, or in the L-SIG, RL-SIG, HE-SIG-A, and/or HE-SIG-B subfields of a multi-user PPDU.

公开(公告)号：US20180359062A1

公开(公告)日：2018-12-13

申请号：US15910761

申请日：2018-03-02

Applicant: Intel IP Corporation

Inventor： Xiaogang Chen ,  Qinghua Li ,  Yuan Zhu ,  Rongzhen Yang ,  Hujun Yin

IPC: H04L5/00

Abstract: This disclosure describes methods, apparatus, and systems related to a high efficiency signal field encoding structure. A device may determine a communications channel having a bandwidth of a frequency band. The device may determine a first group of subchannels of the bandwidth and a second group of subchannels of the bandwidth. The device may determine a high-efficiency signal field to be transmitted on the communications channel to a first device. The device may encode the high-efficiency signal field using the first group of subchannels and the second group of subchannels. The device may cause to send the high-efficiency signal field to the first device.

公开(公告)号：US20180343648A1

公开(公告)日：2018-11-29

申请号：US16037752

申请日：2018-07-17

Applicant: Intel IP Corporation

Inventor： Seunghee Han ,  Yuan Zhu ,  Xiaogang Chen ,  Jong-Kae Fwu

IPC: H04W72/04 ,  H04L1/18 ,  H04W52/28 ,  H04W52/24 ,  H04W28/08 ,  H04W28/02 ,  H04W24/10 ,  H04W24/02 ,  H04L12/813 ,  H04L12/801 ,  H04L5/14 ,  H04L5/00

CPC classification number: H04W72/0413 ,  H04L1/1861 ,  H04L5/0055 ,  H04L5/14 ,  H04L47/12 ,  H04L47/20 ,  H04W24/02 ,  H04W24/10 ,  H04W28/0247 ,  H04W28/0252 ,  H04W28/08 ,  H04W52/243 ,  H04W52/244 ,  H04W52/283 ,  H04W72/042 ,  H04W72/0446

Abstract: Techniques are described for compressing the PUCCH resources reserved for acknowledging downlink data transmissions when those resources are implicitly signaled by EPDCCHs that schedule the downlink transmissions in TDD mode. An acknowledgement resource offset field transmitted in the EPDCCH is configured to correspond to one or more values that compress the region in PUCCH resource index space that would otherwise be reserved for the subframes of a bundling window.

公开(公告)号：US20180288742A1

公开(公告)日：2018-10-04

申请号：US15472920

申请日：2017-03-29

Applicant: Intel IP Corporation

Inventor： Xiaogang Chen ,  Laurent Cariou ,  Po-Kai Huang ,  Qinghua Li ,  Robert Stacey

IPC: H04W72/04 ,  H04W16/14

CPC classification number: H04W16/14 ,  H04L27/26 ,  H04W84/12

Abstract: A legacy WiFi communication may contain information to permit a receiver to know of the presence of a parallel new band (NB) communication, and to receive that information in time to know how to receive the NB communication. In various embodiments, this information may be contained in the L-SIG, RL-SIG, and/or HE-SIG-A subfields of a single user PPDU, or in the L-SIG, RL-SIG, HE-SIG-A, and/or HE-SIG-B subfields of a multi-user PPDU.

公开(公告)号：US20180263033A1

公开(公告)日：2018-09-13

申请号：US15980271

申请日：2018-05-15

Applicant: Intel IP Corporation

Inventor： Qinghua Li ,  Po-Kai Huang ,  Robert Stacey ,  Xiaogang Chen ,  Yuan Zhu

IPC: H04W72/04 ,  H04W72/12 ,  H04W56/00 ,  H04L5/00 ,  H04B7/0452

CPC classification number: H04W72/0413 ,  H04B7/0452 ,  H04L5/0023 ,  H04W56/001 ,  H04W72/1231

Abstract: Uplink long training field (LTF) sequences that apply cyclic shift diversity (CSD) for simultaneous wireless transmissions, such as uplink transmissions, from the antennas of multiple communication devices is provided.

公开(公告)号：US20180249303A1

公开(公告)日：2018-08-30

申请号：US15876777

申请日：2018-01-22

Applicant: Intel IP Corporation

Inventor： Qinghua Li ,  Huaning Niu ,  Yuan Zhu ,  Hwan-Joon Kwon ,  Jeongho Jeon ,  Xiaogang Chen ,  Yang Tang

IPC: H04W4/18 ,  H04L27/26 ,  H04L5/00 ,  H04L29/06

CPC classification number: H04W4/18 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/0079 ,  H04L1/0088 ,  H04L1/08 ,  H04L5/0007 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2647 ,  H04L69/18 ,  H04L69/22 ,  H04W84/12

Abstract: Example systems, methods, and devices for extending range of WiFi networks are discussed. More specifically, methods for extending range of a Wi-Fi network are disclosed. The method may include the operations of appending, by a network device, one or more codebits to one or more original codebits or coded symbols, sending, by the network device, the original codebits or coded symbols and the appended codebits to an interleaver or a constellation mapper for transmission. The original codebits or coded symbols and the appended codebits may be sent over a plurality of subcarriers. Methods, apparatus, and systems described herein can be applied to 802.11ax or any other wireless standard.