公开(公告)号：US09853784B2

公开(公告)日：2017-12-26

申请号：US14341055

申请日：2014-07-25

Applicant: Intel IP Corporation

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

IPC: H04W4/00 ,  H04L5/00 ,  H04L27/26 ,  H04W74/04 ,  H04W52/24 ,  H04W72/04 ,  H04W74/02 ,  H04L1/00 ,  H04L27/34 ,  H04B7/0413 ,  H04B7/26 ,  H04W84/12 ,  H04W74/08 ,  H04W88/10 ,  H04W88/08

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04B7/2615 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/003 ,  H04L5/0035 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/0094 ,  H04L5/0098 ,  H04L27/2602 ,  H04L27/261 ,  H04L27/3405 ,  H04L27/3483 ,  H04W52/0206 ,  H04W52/244 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0426 ,  H04W72/0453 ,  H04W72/0473 ,  H04W74/02 ,  H04W74/04 ,  H04W74/08 ,  H04W74/0808 ,  H04W84/12 ,  H04W88/08 ,  H04W88/10 ,  Y02D70/00 ,  Y02D70/122 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/449

Abstract: Embodiments of a high-efficiency WLAN (HEW) master station and method for communicating in accordance with a scheduled OFDMA technique on secondary channels are generally described herein. An access point is configured to operate as part of a basic-service set (BSS) that includes a plurality of high-efficiency WLAN (HEW) stations and a plurality of legacy stations. The BSS operates on a primary channel and one or more secondary channels. In accordance with some embodiments, the access point may communicate with one or more of the HEW stations on one or more of the secondary channels in accordance with a scheduled OFDMA communication technique when the primary channel is utilized for communication with one or more of the legacy devices.

公开(公告)号：US09806927B2

公开(公告)日：2017-10-31

申请号：US14751089

申请日：2015-06-25

Applicant: Intel IP Corporation

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

IPC: H04L29/08 ,  H04W80/04 ,  H04W84/12 ,  H04L27/26

CPC classification number: H04L5/0048 ,  H04B1/40 ,  H04L27/22 ,  H04L27/2613 ,  H04L69/323 ,  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：US20170288933A1

公开(公告)日：2017-10-05

申请号：US15085299

申请日：2016-03-30

Applicant: Intel IP Corporation

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

IPC: H04L27/26 ,  H04B7/08

CPC classification number: H04L27/2697 ,  H04L1/0036 ,  H04L1/0039 ,  H04L5/0023 ,  H04L5/0092 ,  H04L25/03891 ,  H04L25/067 ,  H04L27/2649 ,  H04L27/2653

Abstract: A satisfactory list detection (LD) receiver based on spatial modulation (SM) orthogonal frequency division multiplexing (OFDM) waveform is provided. In some embodiments, the LD receiver can implement a suboptimal LD detection process that relies on a reduced search space an optimal joint ML detection-based process for the SM-OFDM transmission mode. In some aspects, the overall search space for the optimal joint ML is determined by the total spectral efficiency, which can be divided into two information categories with two different search spaces defined by the number of bits of each category. As such, in some aspects, the LD receiver can permit detecting, with reduced complexity, antenna bits and data bits based on a determination of respective log-likelihood ratios.

公开(公告)号：US09668258B2

公开(公告)日：2017-05-30

申请号：US15026820

申请日：2014-02-27

Applicant: Intel IP Corporation

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

IPC: H04W72/04 ,  H04W4/00 ,  H04L5/00 ,  H04L27/26 ,  H04B7/0452 ,  H04B17/336 ,  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 high-efficiency Wi-Fi (HEW) communication using a multi-device HEW preamble are generally described herein. In some embodiments, the master station may select a number of long-training fields (LTFs) to be included in the multi-device HEW preamble of an HEW frame. The HEW frame may comprise a plurality of links for transmission of a plurality of streams. The master station may transmit the selected number of LTFs sequentially as part of the HEW preamble and transmit a plurality of data fields to scheduled stations during an HEW control period. Each data field may correspond to one of the links and may comprise one or more streams. The selection of the number of LTFs to be included in the HEW preamble may be based on a maximum number of streams to be transmitted on a single link.

公开(公告)号：US20170063589A1

公开(公告)日：2017-03-02

申请号：US15119613

申请日：2014-04-29

Applicant: Intel IP Corporation

Inventor： Xiaogang Chen ,  Qinghua Li ,  Thomas J. Kenney ,  Eldad Perahia ,  Hujun Yin

IPC: H04L27/26 ,  H04L5/00 ,  H04B7/04

CPC classification number: H04L27/2656 ,  H04B7/0452 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0051 ,  H04L27/2602 ,  H04L27/2611 ,  H04L27/2657 ,  H04L27/2675 ,  H04W84/12

Abstract: Embodiments of a packet structure for frequency offset estimation and method for UL MU-MIMO communication in high-efficiency Wi-Fi (HEW) are generally described herein. In some embodiments, the packet structure may comprise a short training field (STF), a number of long-training fields (LTFs) following the STF, a signal field (SIGB)to follow the LTFs, and a data field to follow the signal field. The data field may comprise an UL MU-MIMO transmission from a plurality of scheduled stations. The number of LTFs may be equal to or greater than a number of data streams as part of the UL MU-MIMO transmission, and the plurality of scheduled stations may share the number of LTFs by transmitting on different orthogonal tone sets.

Abstract translation: 用于频率偏移估计的分组结构的实施例和用于高效Wi-Fi（HEW）中的UL MU-MIMO通信的方法在本文中通常被描述。 在一些实施例中，分组结构可以包括短训练场（STF），STF之后的多个长训练场（LTF），跟随LTF的信号域（SIGB）以及跟随信号的数据场 领域。 数据字段可以包括来自多个调度站的UL MU-MIMO传输。 LTF的数量可以等于或大于作为UL MU-MIMO传输的一部分的数据流的数量，并且多个调度的站可以通过在不同的正交音调集上发送来共享LTF的数量。

公开(公告)号：US09572130B2

公开(公告)日：2017-02-14

申请号：US14575448

申请日：2014-12-18

Applicant: Intel IP Corporation

Inventor： Anatoliy Ioffe ,  Boyan Yanakiev ,  Thomas J. Kenney

IPC: H04W72/00 ,  H04W72/02 ,  H04B7/04 ,  H04J11/00 ,  H04L5/00 ,  H04W72/08 ,  H04W88/06

CPC classification number: H04W72/02 ,  H04B7/0486 ,  H04J11/005 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0091 ,  H04W72/042 ,  H04W72/085 ,  H04W88/06

Abstract: In a wireless network, a user equipment (UE) can communicate with an Evolved Node B (eNodeB). During at least some times, the UE transmits a data stream to the eNodeB, over one of several available antenna states on the UE. The antenna states can include one or more tuning states for each antenna port on the UE. At predetermined times, which can be periodic, the UE ceases transmission of the data stream, transmits a test signal sequentially over each of its antenna states, receives a signal back from the eNodeB indicating which of the antenna states provides the strongest signal, and switches to the indicated antenna state. After switching, the UE can resume transmission of the data stream over the indicated antenna state. In some examples, the UE can repeat the antenna tuning/retuning process periodically.

Abstract translation: 在无线网络中，用户设备（UE）可以与演进的节点B（eNodeB）进行通信。 在至少一段时间内，UE通过UE上的若干可用天线状态之一向eNodeB发送数据流。 天线状态可以包括UE上的每个天线端口的一个或多个调谐状态。 在可以是周期性的预定时间，UE停止数据流的传输，在其每个天线状态上顺序地发送测试信号，从eNodeB指示返回的信号，指示哪些天线状态提供最强的信号，并且切换 到指示的天线状态。 在切换之后，UE可以通过指示的天线状态恢复数据流的传输。 在一些示例中，UE可以周期性地重复天线调谐/重新调谐过程。

公开(公告)号：US09510346B2

公开(公告)日：2016-11-29

申请号：US14227085

申请日：2014-03-27

Applicant: Intel IP Corporation

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

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04B7/04 ,  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 high-efficiency Wi-Fi (HEW) communication using traveling pilots are generally described herein. In some embodiments, the master station is arranged for communicating with a plurality of HEW and may be configured to transmit, during an initial portion of an HEW control period, a master-sync transmission that includes a multi-device HEW preamble arranged to signal and identify data fields for a plurality of scheduled HEW stations. The master station may transmit during the HEW control period the data fields with traveling pilots to the scheduled HEW stations. The master station may also receive data fields with traveling pilots transmitted by the scheduled HEW stations during the HEW control period. The traveling pilots may comprise pilot signals that are shifted among orthogonal-frequency multiplexed (OFDM) subcarriers during transmission of one or more of the data fields.

Abstract translation: 这里一般地描述使用移动导频的用于高效Wi-Fi（HEW）通信的主站和方法的实施例。 在一些实施例中，主站被布置为与多个HEW进行通信，并且可以被配置为在HEW控制周期的初始部分期间发送主同步传输，该主同步传输包括布置成信号的多设备HEW前导码 识别多个调度的HEW站的数据字段。 主站可以在HEW控制周期期间将具有旅行飞行员的数据字段发送到预定的HEW站。 在HEW控制周期期间，主站还可以接收由调度的HEW站发送的行驶导频的数据字段。 行驶导频可以包括在一个或多个数据字段的传输期间在正交频分复用（OFDM）子载波之间移位的导频信号。

公开(公告)号：US20160242205A1

公开(公告)日：2016-08-18

申请号：US15025434

申请日：2014-09-26

Applicant: INTEL IP CORPORATION

Inventor： Xiaogang Chen ,  Qinghua Li ,  Thomas J. Kenney ,  Honggang Li ,  Eldad Perahia

IPC: H04W72/12 ,  H04L27/26 ,  H04W72/04 ,  H04B7/04 ,  H04W52/52

CPC classification number: H04W72/1284 ,  H04B7/0452 ,  H04L27/2614 ,  H04W52/52 ,  H04W72/0453 ,  H04W84/12 ,  Y02D70/14

Abstract: Embodiments of a high-efficiency WLAN (HEW) master station and method for communicating in a Wireless Network are generally described herein. In some embodiments, the HEW master station comprises a receiver configured to receive an uplink multi-user multiple-input multiple-output (MU-MIMO) transmission from a plurality of scheduled HEW stations. The uplink MU-MIMO transmission may comprise at least an HEW short-training field (STF) (HEW-STF) transmitted by each of the scheduled HEW stations. The HEW-STFs received from the HEW stations are distinguishable. The master station may process the HEW-STFs received from the scheduled HEW stations to set receiver gain for reception of UL-MIMO data from the scheduled HEW stations. In some embodiments, a single automatic gain control (AGC) setting may be determined from the combined HEW-STF resulting in improved receiver performance in UL MU-MIMO.

Abstract translation: 这里一般地描述高效率WLAN（HEW）主站和用于在无线网络中进行通信的方法的实施例。 在一些实施例中，HEW主站包括被配置为从多个调度的HEW站接收上行链路多用户多输入多输出（MU-MIMO）传输的接收机。 上行链路MU-MIMO传输可以包括由每个调度的HEW站发送的至少HEW短训练场（STF）（HEW-STF）。 从HEW站收到的HEW-STF是可区分的。 主站可以处理从调度的HEW站接收的HEW-STF，以设置用于从预定的HEW站接收UL-MIMO数据的接收机增益。 在一些实施例中，可以从组合的HEW-STF确定单个自动增益控制（AGC）设置，从而在UL MU-MIMO中改善接收机性能。

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。