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：US20170041171A1

公开(公告)日：2017-02-09

申请号：US14757829

申请日：2015-12-26

Applicant: Intel IP Corporation

Inventor： Qinghua Li ,  Xiaogang Chen ,  Robert Stacey ,  Yuan Zhu ,  Hujun Yin

IPC: H04L27/26

CPC classification number: H04L5/0053 ,  H04L5/0044

Abstract: This disclosure describes methods, apparatus, and systems related to a bandwidth and sub-channel indication system. A device may determine a wireless communication channel with a first device in accordance with a wireless communication standard. The device may generate a high efficiency frame in accordance with a high efficiency communication standard the high efficiency frame including, at least in part, one or more high efficiency signal fields. The device may determine one or more indication bits included in at least one of the one or more high efficiency signal fields. The device may cause to send the high efficiency frame to the first device over the wireless communication channel.

Abstract translation: 本公开描述了与带宽和子信道指示系统相关的方法，装置和系统。 设备可以根据无线通信标准确定与第一设备的无线通信信道。 该装置可以根据高效率通信标准产生高效率帧，该高效率帧至少部分地包括一个或多个高效率信号场。 设备可以确定包括在一个或多个高效率信号字段中的至少一个中的一个或多个指示位。 该设备可能导致通过无线通信信道将高效率帧发送到第一设备。

公开(公告)号：US20160353322A1

公开(公告)日：2016-12-01

申请号：US14998291

申请日：2015-12-24

Applicant: Intel IP Corporation

Inventor： Qinghua Li ,  Xiaogang Chen ,  Yuan Zhu ,  Huaning Niu ,  Hujun Yin

IPC: H04W28/06

CPC classification number: H04W74/004 ,  H04L5/00 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0091 ,  H04L27/2613 ,  H04W84/12

Abstract: This disclosure describes methods, apparatus, and systems related to a high efficiency SIGNAL field in high efficiency wireless LAN access network. A device may determine at least one communication channel with one or more devices including a first device and a second device. The device may generate a high efficiency preamble in accordance with a high efficiency communication standard, the high efficiency preamble including, at least in part, a first high efficiency SIGNAL field and a second high efficiency SIGNAL field. The device may partition the second high efficiency SIGNAL fields into, at least in part, a common subfield, and one or more device specific subfields. The device may send the high efficiency preamble to at least one of the one or more devices.

Abstract translation: 本公开描述了与高效无线LAN接入网络中的高效率SIGNAL字段相关的方法，装置和系统。 设备可以确定与包括第一设备和第二设备的一个或多个设备的至少一个通信信道。 该设备可以根据高效率通信标准生成高效率前导码，该高效率前导码至少部分地包括第一高效率信号字段和第二高效率信号字段。 该设备可以将第二高效率SIGNAL字段划分为至少部分公共子字段以及一个或多个特定于设备的子字段。 所述设备可以向所述一个或多个设备中的至少一个发送所述高效率前导码。

公开(公告)号：US20160329989A1

公开(公告)日：2016-11-10

申请号：US14757961

申请日：2015-12-26

Applicant: Intel IP Corporation

Inventor： Qinghua Li ,  Xiaogang Chen ,  Yuan Zhu ,  Yushu Zhang ,  Xintian E. Lin ,  Hujun Yin

IPC: H04L1/00 ,  H04L29/06 ,  H04W72/04

CPC classification number: H04L1/0061 ,  H03M13/09 ,  H03M13/23 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0059 ,  H04L1/0072 ,  H04L5/0053 ,  H04L69/22 ,  H04W74/004 ,  H04W84/12

Abstract: This disclosure describes systems, methods, computer readable media, and/or apparatus related to encoding wireless communication preamble structures with cyclic redundancy check (CRC) that is performed on both a common part, as well as, station specific parts of a signaling field. The signaling field generated by this mechanism may be relatively shorter, resulting in less preamble overhead, than if a separate CRC was to be provided for each of the station specific parts, as well as the common part of the signaling field. In additional embodiments, tail bits may be provided for a combination of the common part of the signaling field and each station specific part of the signaling field. Compared to providing tail bits separately for the common part and each of the station specific parts, removing the tail bits from the tail bits form the common part may result in relatively less overhead of the preamble structure.

Abstract translation: 本公开描述了与编码具有循环冗余校验（CRC）的无线通信前导结构相关的系统，方法，计算机可读介质和/或设备，其在公共部分以及信令字段的站特定部分上执行。 由该机制产生的信令字段可能相对较短，导致较少的前导码开销，而不是为每个站特定部分提供单独的CRC以及信令字段的公共部分。 在另外的实施例中，可以为信令字段的公共部分和信令字段的每个站特定部分的组合提供尾比特。 相比于为公共部分和每个站特定部分分别提供尾比特，从尾比特中除去尾比特构成公共部分可能导致前同步码结构相对较少的开销。

公开(公告)号：US10574411B2

公开(公告)日：2020-02-25

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：US10432344B2

公开(公告)日：2019-10-01

申请号：US15727744

申请日：2017-10-09

Applicant: Intel IP Corporation

Inventor： Po-Kai Huang ,  Rongzhen Yang ,  Robert J. Stacey ,  Hujun Yin

IPC: H04L1/00 ,  H04W72/08 ,  H04B7/04 ,  H04B17/00 ,  H04W72/04 ,  H04B7/0452 ,  H04B7/06 ,  H04B17/345 ,  H04W92/18 ,  H04W84/12

Abstract: A transmitter/receiver pair may estimate a first channel interference caused during the spatial reuse phase by the transmitter/receiver pair to other transmitter/receiver pairs over a channel. A second channel interference experienced by the transmitter/receiver pair may be estimated during the spatial reuse phase by the transmitter/receiver pair from the other transmitter/receiver pairs. An interference margin may be estimated for the channel based on the first and second channel interferences. The interference margin may be announced to the other transmitter/receiver pairs in frame. The interference margin may then be complied with while communicating over the channel in order to control the interference.

公开(公告)号：US10187238B2

公开(公告)日：2019-01-22

申请号：US15828932

申请日：2017-12-01

Applicant: Intel IP Corporation

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

IPC: H04L27/26 ,  H04L5/00 ,  H04W52/32 ,  H04W72/12 ,  H04W52/34

Abstract: Apparatuses, methods, and computer readable media for signaling high efficiency short training field are disclosed. A high-efficiency wireless local-area network (HEW) station is disclosed. The HEW station may comprise circuitry configured to: receive a trigger frame comprising an allocation of a resource block for the HEW station, and transmit a high efficiency short training field (HE-STF) with a same bandwidth as a subsequent data portion, wherein the transmit is to be in accordance with orthogonal frequency division multiple access (OFDMA) and wherein the transmit is within the resource block. A subcarrier allocation for the HE-STF may match a subcarrier allocation for the subsequent data portion. The HE-STF and the subsequent data portion may be transmitted with a same power. A total power of active subcarriers of the HE-STF may be equal to or proportional to a second total of data subcarriers and pilot subcarriers of the subsequent data portion.

公开(公告)号：US10123329B2

公开(公告)日：2018-11-06

申请号：US14998130

申请日：2015-12-26

Applicant: Intel IP Corporation

Inventor： Qinghua Li ,  Xiaogang Chen ,  Yuan Zhu ,  Robert Stacey ,  Hujun Yin

IPC: H04W72/04 ,  H04B7/0413 ,  H04B7/0456 ,  H04L25/02 ,  H04L27/26 ,  H04B7/0452

Abstract: Embodiments for long training field (LTF) sequences or other types of sequences in uplink multi-user multiple-input multiple-output communications are provided. The LTF sequences can permit channel estimation, including determination of carrier frequency offsets. In some embodiments, an LTF sequence can be formatted and/or conveyed without reliance on pilot tones. In other embodiments, the LTF sequence can rely on pilot tones, where a sequence associated with the pilot tones can include elements that are orthogonal among transmitter station devices that communicate according to MU-MIMO.

公开(公告)号：US10091709B2

公开(公告)日：2018-10-02

申请号：US14779559

申请日：2013-12-20

Applicant: Intel IP Corporation

Inventor： Rongzhen Yang ,  Huaning Niu ,  Hujun Yin ,  Qinghua Li

IPC: H04W56/00 ,  H04W48/14 ,  H04W48/16 ,  H04W48/18 ,  H04W8/00 ,  H04W4/02 ,  H04W8/02 ,  H04W36/24 ,  H04W48/20 ,  H04W4/90 ,  H04W84/04 ,  H04W84/18

Abstract: Embodiments described herein relate generally to a user equipment (“UE”) that is to transmit and receive signals associated with synchronization. The UE may be receive signals associated with synchronization from a plurality of synchronization sources, such as an evolved Node B (“eNB”), a global navigation satellite system (“GNSS”), or another UE. The UE may synchronize to a signal received from a synchronization source based on a priority associated with that synchronization source and/or signal. However, if the UE does not receive any signals associated with synchronization, the UE may generate and transmit a signal that indicates a request for synchronization.

公开(公告)号：US10045369B2

公开(公告)日：2018-08-07

申请号：US14472406

申请日：2014-08-29

Applicant: INTEL IP CORPORATION

Inventor： Qinghua Li ,  Huaning Niu ,  Po-Kai Huang ,  Robert Stacey ,  Rongzhen Yang ,  Guoqing Li ,  Hujun Yin

IPC: H04W74/06 ,  H04L5/00 ,  H04B7/04 ,  H04W72/04 ,  H04W72/12 ,  H04B7/0452

Abstract: Some demonstrative embodiments include devices, systems and methods of multi-user downlink transmission. For example, an apparatus may include a transmitter to transmit a multi-user (MU) downlink request to a plurality of wireless stations; and a receiver to receive one or more responses from one or more wireless stations of the plurality of wireless stations, wherein the transmitter is to transmit to the plurality of wireless stations a MU scheduling message indicating resources allocated to a downlink transmission to at least one scheduled station of the one or more wireless stations, and to transmit the downlink transmission to the at least one scheduled station according to the MU scheduling message.