公开(公告)号：US20230224080A1

公开(公告)日：2023-07-13

申请号：US18174626

申请日：2023-02-26

Applicant: INTEL CORPORATION

Inventor： Artyom Lomayev ,  Alexander Maltsev ,  Michael Genossar ,  Claudio Da Silva ,  Carlos Cordeiro

IPC: H04L1/06 ,  H04L25/02 ,  H04L5/00

CPC classification number: H04L1/0681 ,  H04L25/0242 ,  H04L1/0625 ,  H04L25/0204 ,  H04L5/0007

Abstract: Some demonstrative embodiments include apparatuses, devices, systems and methods of communicating an Enhanced Directional Multi-Gigabit (DMG) (EDMG) Physical Layer Protocol Data Unit (PPDU). For example, an EDMG wireless communication station (STA) may be configured to communicate an EDMG PPDU including a Channel Estimation Field (CEF) and/or a pilot sequence, which may be configured for an OFDM mode.

公开(公告)号：US09900199B2

公开(公告)日：2018-02-20

申请号：US14702558

申请日：2015-05-01

Applicant: QUALCOMM Incorporated

Inventor： Sameer Vermani ,  Bin Tian ,  Rahul Tandra ,  Dung Ngoc Doan

IPC: H04L27/26 ,  H04L1/06 ,  H04L5/00 ,  H04L25/02 ,  H04B17/309

CPC classification number: H04L27/2613 ,  H04B17/309 ,  H04L1/0625 ,  H04L1/0681 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2607 ,  H04L27/2611

Abstract: Methods, devices, and computer program products for improving training field design in packets with increased symbol durations are disclosed. In one aspect, a method of transmitting a packet on a wireless communication network is disclosed. The method includes transmitting a preamble of the packet over one or more space-time-streams, the preamble including one or more training fields configured to be used for channel estimation, the one or more training fields each comprising one or more symbols of a first symbol duration. The method further includes transmitting a payload of the packet over the one or more space-time-streams, the payload comprising one or more symbols of a second symbol duration, the second symbol duration greater than the first symbol duration.

公开(公告)号：US20140286356A1

公开(公告)日：2014-09-25

申请号：US14350781

申请日：2012-10-31

Applicant: LG ELECTRONICS INC.

Inventor： Hyang Sun You ,  Yong Ho Seok ,  Jong Hyun Park

IPC: H04L29/06

CPC classification number: H04L69/22 ,  H04L1/0025 ,  H04L1/0681 ,  H04L1/08 ,  H04L27/2666 ,  H04W4/70 ,  H04W80/02

Abstract: Disclosed are method and device for indicating a PLCP header transmission mode. A method for generating a physical layer convergence protocol (PLCP) of a data frame can comprise the following steps: demodulating PLCP header mode information based on a scrambling sequence of the received frame or information elements included in the received frame; and generating a data frame including the PLCP header generated based on the PCLP header mode information. The PLCP header mode information comprises at least one indication from a space time block coding mode indication, a guard interval mode indication, and a repetition mode indication. The invention is capable of improving data transmission efficiency by adaptively determining a transmission mode of a PCLP header to a channel situation.

Abstract translation: 公开了用于指示PLCP报头传输模式的方法和装置。 一种用于生成数据帧的物理层汇聚协议（PLCP）的方法可以包括以下步骤：基于所接收的帧的加扰序列或包括在接收帧中的信息元素来解调PLCP头模式信息; 以及生成包括基于PCLP头模式信息生成的PLCP头的数据帧。 PLCP头模式信息包括来自空间时间块编码模式指示，保护间隔模式指示和重复模式指示的至少一个指示。 本发明能够通过将PCLP头的传输模式自适应地确定到信道情况来提高数据传输效率。

公开(公告)号：US20140126398A1

公开(公告)日：2014-05-08

申请号：US13875835

申请日：2013-05-02

Applicant: BROADCOM CORPORATION

Inventor： Joonsuk Kim ,  Matthew James Fischer

IPC: H04L25/02

CPC classification number: H04L1/0681 ,  H04L1/00 ,  H04L1/0026 ,  H04L1/0643 ,  H04L5/0057 ,  H04L25/0202 ,  H04L25/022 ,  H04L27/2613 ,  H04L2001/0092

Abstract: An apparatus includes a receiver to receive a first signal from at least one additional apparatus including a data frame including a FACK request in a signal (SIG) field. A baseband processor generates feedback information for use to perform channel estimation. A transmitter transmits a second signal that includes the feedback information to the at least one additional apparatus.

Abstract translation: 一种装置包括接收机，用于从包括信号（SIG）字段中的FACK请求的数据帧的至少一个附加装置接收第一信号。 基带处理器产生用于执行信道估计的反馈信息。 发射机将包括反馈信息的第二信号发送到至少一个附加装置。

公开(公告)号：US08699405B2

公开(公告)日：2014-04-15

申请号：US13958369

申请日：2013-08-02

Applicant: Sony Corporation

Inventor： Tomoya Yamaura

IPC: H04B7/212 ,  H04B7/00 ,  H04B1/44

CPC classification number: H04L1/0681 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0421 ,  H04B7/043 ,  H04B7/0456 ,  H04B7/0626 ,  H04B7/0628 ,  H04B7/0643 ,  H04L1/0625 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0242 ,  H04L25/03159 ,  H04L27/2601 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: A wireless communication system which performs data transmission using spatially multiplexed streams from a first terminal including N antennas to a second terminal including M antennas (N is an integer of 2 or more and M is an integer of 1 or more) is disclosed. The system includes notifying means, training means, channel matrix estimation means, beamforming information feedback means, transmission weight matrix setting means, and beamforming means.

公开(公告)号：US08660105B2

公开(公告)日：2014-02-25

申请号：US13405535

申请日：2012-02-27

Applicant: Qinghua Li ,  Xintian E. Lin

Inventor： Qinghua Li ,  Xintian E. Lin

IPC: H04W88/06

CPC classification number: H04B7/0413 ,  H04B7/0617 ,  H04B7/0643 ,  H04L1/0681

Abstract: A wireless network access point can operate as a closed loop MIMO device when communicating with a station that is operating as an open loop MIMO device. Transmit/receive chains in the access point are calibrated to support aggregate channel reciprocity.

Abstract translation: 当与作为开环MIMO设备操作的站通信时，无线网络接入点可以作为闭环MIMO设备操作。 校准接入点中的发送/接收链以支持聚合信道互易。

公开(公告)号：US20130088981A1

公开(公告)日：2013-04-11

申请号：US13639393

申请日：2010-04-06

Applicant: Di Lv ,  Hongwei Yang

Inventor： Di Lv ,  Hongwei Yang

IPC: H04W72/04

CPC classification number: H04W72/044 ,  H04B7/0478 ,  H04B7/063 ,  H04B7/0639 ,  H04L1/0681 ,  H04L25/03898

Abstract: A method for performing hierarchical feedback with space information assisted in a mobile communication system is provided. At the user terminal, the method comprises: measuring a space correlated matrix of multiple transmit antennas of a base station; converting a hierarchical code book in the mode of hierarchical feedback by using the spatial correlation matrix; selecting the code word from the converted hierarchical code book; and feedbacking a pre-coding matrix index corresponding to the index of the selected code word and the space correlated correlation matrix from the user terminal to the base station by using the mode of hierarchical feedback.

Abstract translation: 提供了一种用于在移动通信系统中辅助的用空间信息执行层次反馈的方法。 在用户终端，该方法包括：测量基站的多个发射天线的空间相关矩阵; 通过使用空间相关矩阵转换分级反馈模式的分级代码本; 从转换的分层代码簿中选择代码字; 并且通过使用层次反馈的模式将与所选码字的索引相对应的预编码矩阵索引和空间相关相关矩阵从用户终端反馈到基站。

公开(公告)号：US20120066564A1

公开(公告)日：2012-03-15

申请号：US12806208

申请日：2009-09-02

Applicant: Hosein Nikopourdeilami ,  Jun Yuan ,  Mo-Han Fong ,  Mohammadhadi Baligh

Inventor： Hosein Nikopourdeilami ,  Jun Yuan ,  Mo-Han Fong ,  Mohammadhadi Baligh

IPC: G06F11/10

CPC classification number: H04L1/0681

Abstract: To feedback MIMO channel conditions, a codeword from a codebook is selected. To reduce signalling, the codewords are organized into codeword subsets. The receiver signals an index of a codeword into a current 5 codeword subset previously made known to the transmitter. The current codeword subset is adaptively selected based on a threshold criterion. For example, if the best codeword from the current codeword subset is not sufficiently similar to the best codeword in the full codebook, a switch in the codeword subset is made.

Abstract translation: 为了反馈MIMO信道条件，选择来自码本的码字。 为了减少信令，码字被组织成码字子集。 接收机将码字的索引发送到先前对发射机已知的当前5码字子集。 基于阈值标准自适应地选择当前码字子集。 例如，如果来自当前码字子集的最佳码字不足以与完整码本中的最佳码字相似，则在码字子集中进行切换。

公开(公告)号：US07719993B2

公开(公告)日：2010-05-18

申请号：US11027300

申请日：2004-12-30

Applicant: Qinghua Li ,  Xintian E. Lin

Inventor： Qinghua Li ,  Xintian E. Lin

IPC: H04L12/26

CPC classification number: H04B7/0413 ,  H04B7/0617 ,  H04B7/0643 ,  H04L1/0681

Abstract: A wireless network access point can operate as a closed loop MIMO device when communicating with a station that is operating as an open loop MIMO device. Transmit/receive chains in the access point are calibrated to support aggregate channel reciprocity.

Abstract translation: 当与作为开环MIMO设备操作的站通信时，无线网络接入点可以作为闭环MIMO设备操作。 校准接入点中的发送/接收链以支持聚合信道互易。

公开(公告)号：US20230188258A1

公开(公告)日：2023-06-15

申请号：US17966847

申请日：2022-10-16

Applicant: INTEL CORPORATION

Inventor： Artyom Lomayev ,  Alexander Maltsev ,  Michael Genossar ,  Claudio Da Silva ,  Carlos Cordeiro

IPC: H04L1/06 ,  H04L25/02

CPC classification number: H04L1/0681 ,  H04L1/0625 ,  H04L25/0204 ,  H04L25/0242 ,  H04L5/0007

Abstract: Some demonstrative embodiments include apparatuses, devices, systems and methods of communicating an Enhanced Directional Multi-Gigabit (DMG) (EDMG) Physical Layer Protocol Data Unit (PPDU). For example, an EDMG wireless communication station (STA) may be configured to communicate an EDMG PPDU including a Channel Estimation Field (CEF) and/or a pilot sequence, which may be configured for an OFDM mode.