公开(公告)号：US09271241B2

公开(公告)日：2016-02-23

申请号：US14304041

申请日：2014-06-13

Applicant: Intel IP Corporation

Inventor： Thomas J. Kenney ,  Eldad Perahia ,  Shahrnaz Azizi

IPC: H04W4/00 ,  H04W52/24 ,  H04B7/04 ,  H04W52/26 ,  H04W16/14 ,  H04W28/06 ,  H04W52/42 ,  H04W74/00 ,  H04W84/12 ,  H04W52/34 ,  H04W56/00

CPC classification number: H04W28/06 ,  H04B7/0452 ,  H04L5/0053 ,  H04L5/0091 ,  H04W16/14 ,  H04W52/241 ,  H04W52/267 ,  H04W52/346 ,  H04W52/42 ,  H04W56/00 ,  H04W74/006 ,  H04W84/12

Abstract: Embodiments of a system and methods for distinguishing high-efficiency Wi-Fi (HEW) packets from legacy packets are generally described herein. In some embodiments, an access point may select a value for the length field of a legacy signal field (L-SIG) that is non-divisible by three for communicating with HEW stations and may select a value for the length field that is divisible by three for communicating with legacy stations. In some embodiments, the access point may select a phase rotation for application to the BPSK modulation of at least one of the first and second symbols of a subsequent signal field to distinguish a high-throughput (HT) PPDU, a very-high throughput (VHT) PPDU and an HEW PPDU.

Abstract translation: 本文通常描述用于区分高效Wi-Fi（HEW）分组与传统分组的系统和方法的实施例。 在一些实施例中，接入点可以为不与HEW站进行通信的三分之一的遗留信号字段（L-SIG）的长度字段的值选择一个值，并且可以选择一个可以由 三个用于与传统站通信。 在一些实施例中，接入点可以选择用于应用于随后信号字段的第一和第二符号中的至少一个的BPSK调制的相位旋转，以区分高吞吐量（HT）PPDU，非常高的吞吐量 VHT）PPDU和HEW PPDU。

公开(公告)号：US10425893B2

公开(公告)日：2019-09-24

申请号：US15852964

申请日：2017-12-22

Applicant: INTEL IP CORPORATION

Inventor： Chittabrata Ghosh ,  Chen Kojokaro ,  Eldad Perahia ,  Shahrnaz Azizi

IPC: H04W52/02 ,  H04W56/00 ,  H04W72/04 ,  H04W72/12 ,  H04L5/00 ,  H04L12/801 ,  H04W84/12

Abstract: Example systems, methods, and devices for channel access in dense wireless networks are discussed. More specifically, methods may include transmitting one or more trigger frames from an access point to one or more communication stations, the one or more trigger frames comprising a plurality of components, the plurality of components indicating whether trigger frames within a beacon interval are scheduled in a periodic or aperiodic manner, and if periodic trigger frames are scheduled, then indicating a countdown to the next trigger frame, and if aperiodic trigger frames are scheduled, then indicating the time to the next trigger frame scheduled by the access point. Methods, apparatus, and systems described herein can be applied to 802.11ax or any other wireless standard.

公开(公告)号：US10177888B2

公开(公告)日：2019-01-08

申请号：US15263864

申请日：2016-09-13

Applicant: Intel IP Corporation

Inventor： Shahrnaz Azizi ,  Eldad Perahia ,  Thomas J. Kenney

IPC: H04L5/00 ,  H04L27/26 ,  H04L1/00 ,  H04L27/34 ,  H04W52/02 ,  H04W74/04 ,  H04W74/02 ,  H04W84/12 ,  H04B7/26 ,  H04W52/24 ,  H04W72/04 ,  H04W74/08 ,  H04B7/0413 ,  H04W88/10 ,  H04W88/08

Abstract: Embodiments of an access point and method for high-efficiency WLAN (HEW) communication are generally described herein. In some embodiments, the access point may be configured to operate as a master station and may configure an HEW frame to include a legacy signal field (L-SIG), an HEW signal field (HEW SIG-A) following the L-SIG, and one or more HEW fields following the HEW SIG-A. The L-SIG may be configured for transmission using a legacy number of data subcarriers, a legacy number of pilot subcarriers and a number of additional reference subcarriers modulated with a known reference sequence. At least one symbol of the HEW SIG-A and the one or more HEW fields following the HEW SIG-A of the HEW frame may be configured for transmission using additional data subcarriers. The additional data subcarriers may correspond to the additional reference subcarriers of the L-SIG.

公开(公告)号：US10122510B2

公开(公告)日：2018-11-06

申请号：US15603791

申请日：2017-05-24

Applicant: Intel IP Corporation

Inventor： Shahrnaz Azizi ,  Robert J. Stacey ,  Thomas J. Kenney ,  Eldad Perahia

IPC: H04L5/00 ,  H04B1/40 ,  H04L27/22 ,  H04L29/08 ,  H04W84/12

Abstract: Methods, apparatuses, and computer readable media for signaling high-efficiency packet formats using a legacy portion of the preamble in wireless local-area networks are disclosed. A high-efficiency (HE) wireless local area network (HEW) device including circuitry is disclosed. The circuitry may be configured to generate a HE packet comprising a legacy signal field (L-SIG) followed by one or more HE signal fields, and configure the L-SIG to signal to a second HEW device either a first packet format of the HE packet or a second packet format of the HE packet, where a length of the L-SIG modulo 3 is used to signal the first packet format or the second packet format. The circuitry may be configured to generate a duplicated L-SIG field with a polarity difference to indicate a third packet configuration of the HE packet or a fourth packet configuration of the HE packet.

公开(公告)号：US10057846B2

公开(公告)日：2018-08-21

申请号：US14973224

申请日：2015-12-17

Applicant: Intel IP Corporation

Inventor： Ahmed Gamal Helmy Mohamed ,  Shahrnaz Azizi ,  Mohamed K. Hassanin ,  Thomas J. Kenney ,  Eldad Perahia

IPC: H04W48/20 ,  H04W60/00 ,  H04W40/24 ,  H04W72/02

CPC classification number: H04W48/20 ,  H04W40/244 ,  H04W60/005 ,  H04W72/02 ,  H04W84/12 ,  H04W84/20 ,  H04W88/04

Abstract: Generally discussed herein are devices and methods for station and master station association. A device can include a memory to store instructions and channel condition data, and processing circuitry coupled to execute the instructions and configure the processing circuitry to decode first information provided in a first transmission from a first access point (AP), the first information indicating channel conditions of an entire bandwidth of the first AP including a primary channel and one or more secondary channels of the first AP, decode second information provided a second transmission from a second AP, the second information indicating channel conditions of an entire bandwidth of the second AP including a primary channel and one or more secondary channels of the second AP, and determine which of the first and second APs to associate with based on the first and second decoded information.

公开(公告)号：US09883505B2

公开(公告)日：2018-01-30

申请号：US15022477

申请日：2013-12-16

Applicant: Intel IP Corporation

Inventor： Thomas J. Kenney ,  Shahrnaz Azizi ,  Eldad Perahia

IPC: G08C17/00 ,  H04W72/04 ,  H04W4/00 ,  H04L5/00 ,  H04L27/26 ,  H04B7/0452 ,  H04J11/00 ,  H04L29/06 ,  H04W24/02 ,  H04W56/00 ,  H04W52/02 ,  H04B7/0413 ,  H04W74/04 ,  H04W84/12

CPC classification number: H04W72/044 ,  H04B7/0413 ,  H04B7/0452 ,  H04B17/336 ,  H04J11/00 ,  H04J2011/0096 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0064 ,  H04L27/2601 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2695 ,  H04L69/22 ,  H04W4/80 ,  H04W24/02 ,  H04W52/0216 ,  H04W52/0219 ,  H04W56/002 ,  H04W72/0413 ,  H04W72/0453 ,  H04W74/04 ,  H04W84/12 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/22

Abstract: Embodiments of a master station and method for communicating in a high-efficiency Wi-Fi (HEW) network are generally described herein. In some embodiments, the master station is arranged to configure an HEW frame for communicating with a plurality of HEW compliant devices. The master station may transmit a master sync transmission that includes synchronization information and may be transmitted at a beginning of an HEW control period. The master station may configure an HEW frame to include an HEW signal field (HEW SIG) as a first field of the frame and may transmit the HEW frame without legacy synchronization information at the beginning of the HEW frame.

公开(公告)号：US09882695B2

公开(公告)日：2018-01-30

申请号：US15394069

申请日：2016-12-29

Applicant: Intel IP Corporation

Inventor： Shahrnaz Azizi ,  Thomas J. Kenney ,  Guoqing C. Li ,  Eldad Perahia ,  Robert J. Stacey

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/12 ,  H04B7/0452 ,  H04L1/00 ,  H04W84/12

CPC classification number: H04L5/0053 ,  H04B7/0452 ,  H04L1/0003 ,  H04L1/0006 ,  H04L5/003 ,  H04L5/0048 ,  H04L27/2601 ,  H04W72/1278 ,  H04W84/12

Abstract: Embodiments of a transmission signaling structure for HEW are defined to carry packet information to configure OFDMA receivers for demodulation of a specific portion of the packet and/or to configure receivers for transmission using specific OFDMA and MU-MIMO resources. In some embodiments, the specific portion of the packet comprises one or more minimum bandwidth units of one or more 20 MHz channels. Each 20 MHz bandwidth structure may comprise several minimum bandwidth units to allow each 20 MHz channel to have a have smaller granularity than 20 MHz.

公开(公告)号：US09867210B2

公开(公告)日：2018-01-09

申请号：US15280782

申请日：2016-09-29

Applicant: Intel IP Corporation

Inventor： Shahrnaz Azizi ,  Thomas J. Kenney ,  Guoqing C. Li ,  Eldad Perahia ,  Robert J. Stacey

IPC: H04W4/00 ,  H04W72/12 ,  H04L27/26 ,  H04L5/00 ,  H04W84/12

CPC classification number: H04L5/0053 ,  H04B7/0452 ,  H04L1/0003 ,  H04L1/0006 ,  H04L5/003 ,  H04L5/0048 ,  H04L27/2601 ,  H04W72/1278 ,  H04W84/12

Abstract: Embodiments of a transmission signaling structure for HEW are defined to carry packet information to configure OFDMA receivers for demodulation of a specific portion of the packet and/or to configure receivers for transmission using specific OFDMA and MU-MIMO resources. In some embodiments, the specific portion of the packet comprises one or more minimum bandwidth units of one or more 20 MHz channels. Each 20 MHz bandwidth structure may comprise several minimum bandwidth units to allow each 20 MHz channel to have a have smaller granularity than 20 MHz.

公开(公告)号：US09847896B2

公开(公告)日：2017-12-19

申请号：US14747191

申请日：2015-06-23

Applicant: Intel IP Corporation

Inventor： Shahrnaz Azizi ,  Robert J. Stacey ,  Thomas J. Kenney ,  Eldad Perahia

IPC: H04W4/00 ,  H04L27/26 ,  H04L1/00 ,  H04W84/12

CPC classification number: H04L27/2613 ,  H04L1/00 ,  H04L1/08 ,  H04W84/12

Abstract: A high-efficiency (HE) wireless local area network (HEW) device including circuitry is disclosed. The circuitry may be configured generate a HE packet comprising a legacy signal field (L-SIG) followed by one or more HE signal fields, where the one or more HE signal fields include a HE-SIG-A field, and where a modulation and coding scheme (MCS) sub-field of the HE-SIG-A field jointly signals a MCS and one or more other sub-fields. The one or more other sub-fields may be a low-density parity check (LDPC) or a space-time block coding (STBC). The circuitry may be configured to generate the L-SIG to signal to the one or more HEW devices either a first packet format of the HE packet or a second packet format of the HE packet, where a length of the L-SIG modulo 3 is used to signal the first packet format or the second packet format.

公开(公告)号：US09819527B2

公开(公告)日：2017-11-14

申请号：US14975190

申请日：2015-12-18

Applicant: Intel IP Corporation

Inventor： Ahmed Gamal Helmy Mohamed ,  Shahrnaz Azizi ,  Thomas J. Kenney ,  Eldad Perahia

IPC: H04L27/26 ,  H04B7/0413 ,  H04B7/06 ,  H04W84/12

CPC classification number: H04L27/2627 ,  H04B7/0413 ,  H04B7/0697 ,  H04L27/2602 ,  H04W84/12

Abstract: A transmitter for spatial modulation in a high-efficiency wireless local-area network is disclosed. An apparatus is disclosed that comprises memory and circuitry coupled to the memory. The processing circuitry configured to split a data bitstream between an antenna bitstream and a symbol bitstream, encode the data bitstream into a plurality of orthogonal frequency-division multiplexing (OFDM) symbols from a signal constellation, encode the antenna bitstream into a plurality of antenna indices from a space constellation, map symbols of the plurality of symbols to a plurality of subcarriers of a channel and associate the symbols with an index of the plurality of indices. The processing circuitry may be configured to configure the access point for transmission of the symbols on the channel in accordance with an associated one of the antenna indices.