公开(公告)号：US09100177B2

公开(公告)日：2015-08-04

申请号：US13601002

申请日：2012-08-31

Applicant: Rahul Dangui ,  Simone Merlin ,  Santosh Paul Abraham ,  Vincent Knowles Jones, IV ,  Zhi Quan ,  Maarten Menzo Wentink

Inventor： Rahul Dangui ,  Simone Merlin ,  Santosh Paul Abraham ,  Vincent Knowles Jones, IV ,  Zhi Quan ,  Maarten Menzo Wentink

IPC: H04W72/00 ,  H04L1/16 ,  H04L1/18

CPC classification number: H04L1/1614 ,  H04L1/1685 ,  H04L1/1864 ,  H04L1/1896

Abstract: Systems, methods, and devices for acknowledging communications from a plurality of wireless devices in a wireless network are described herein. In some embodiments, an access point for the wireless network transmits a group acknowledgment (ACK) to indicate whether communications (packets) from the plurality of wireless devices have been received or correctly decoded within some time interval. Each wireless device may have a different time interval associated with it. For some embodiments, the time interval for a wireless device is relative to when a previous group ACK was sent. A group ACK may include a bitmap. In some embodiments, the bitmap indicating whether a communication has been received or correctly decoded may be transmitted as part of a beacon.

Abstract translation: 这里描述了用于确认来自无线网络中的多个无线设备的通信的系统，方法和设备。 在一些实施例中，无线网络的接入点发送组确认（ACK）以指示来自多个无线设备的通信（分组）是否已经被接收到或在一段时间间隔内被正确解码。 每个无线设备可以具有与其相关联的不同的时间间隔。 对于一些实施例，无线设备的时间间隔是相对于发送先前组ACK的时间间隔。 组ACK可以包括位图。 在一些实施例中，指示通信是否已被接收或正确解码的位图可以作为信标的一部分被发送。

公开(公告)号：US09077498B2

公开(公告)日：2015-07-07

申请号：US13247047

申请日：2011-09-28

Applicant: Santosh Paul Abraham ,  Simone Merlin ,  Sameer Vermani ,  Hemanth Sampath

Inventor： Santosh Paul Abraham ,  Simone Merlin ,  Sameer Vermani ,  Hemanth Sampath

IPC: G01R31/08 ,  H04L5/00 ,  H04B7/06 ,  H04L1/00 ,  H04B7/04 ,  H04W72/04 ,  H04W88/08

CPC classification number: H04L5/0053 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/0636 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/0039 ,  H04L5/0007 ,  H04W72/0413 ,  H04W88/08

Abstract: Certain aspects of the present disclosure relate to a technique for communicating Channel State Information (CSI) feedback. In some aspects, the CSI feedback is communicated in a very high throughput (VHT) wireless communications system.

Abstract translation: 本公开的某些方面涉及用于传送信道状态信息（CSI）反馈的技术。 在一些方面，CSI反馈在非常高吞吐量（VHT）无线通信系统中传送。

公开(公告)号：US09008677B2

公开(公告)日：2015-04-14

申请号：US13299579

申请日：2011-11-18

Applicant: Didier Johannes Richard Van Nee ,  Albert Van Zelst ,  Sameer Vermani ,  Vincent Knowles Jones, IV ,  Simone Merlin

Inventor： Didier Johannes Richard Van Nee ,  Albert Van Zelst ,  Sameer Vermani ,  Vincent Knowles Jones, IV ,  Simone Merlin

IPC: H04B1/00 ,  H04W72/00 ,  H04B7/00 ,  H04M1/00 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0452 ,  H04B7/0434 ,  H04B7/0615 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0697

Abstract: A base station for communicating with multiple groups of wireless communication devices is described. The base station includes a processor and executable instructions stored in memory that is in electronic communication with the processor. The base station determines a number of wireless communication devices. The base station also splits the number of wireless communication devices into groups. The base station further determines a precoding matrix for each group. The base station additionally transmits a beamformed signal to each group using the precoding matrix for each group.

Abstract translation: 描述了用于与多组无线通信设备进行通信的基站。 基站包括存储在与处理器电子通信的存储器中的处理器和可执行指令。 基站确定多个无线通信设备。 基站还将无线通信设备的数量分组。 基站进一步确定每个组的预编码矩阵。 基站使用每个组的预编码矩阵另外向每个组发送波束形成的信号。

公开(公告)号：US08971247B2

公开(公告)日：2015-03-03

申请号：US13481107

申请日：2012-05-25

Applicant: Santosh Paul Abraham ,  Zhi Quan ,  Simone Merlin ,  Mohammad H. Taghavi Nasrabadi

Inventor： Santosh Paul Abraham ,  Zhi Quan ,  Simone Merlin ,  Mohammad H. Taghavi Nasrabadi

IPC: H04W4/00 ,  H04L1/18 ,  H04L1/16 ,  H04L12/807 ,  H04B7/04 ,  H04L12/18 ,  H04W84/12

CPC classification number: H04L1/18 ,  H04B7/0452 ,  H04L1/008 ,  H04L1/1621 ,  H04L1/1635 ,  H04L1/1819 ,  H04L1/1835 ,  H04L1/1867 ,  H04L12/189 ,  H04L47/27 ,  H04W84/12

Abstract: Methods, devices, and systems for retransmitting Media Access Control (MAC) protocol data units (MPDUs) in a multi-user multiple-input and multiple-output (MU-MIMO) communication system are disclosed. Concurrent data streams within a first transmission window are transmitted. Each concurrent data stream is associated with a different recipient and includes an equal number of MPDUs. An indication of a retransmission subset of the MPDUs to be retransmitted for each concurrent data stream may be obtained if errors are present. The retransmission subset for each concurrent data stream is retransmitted within a second transmission window. A length of the second transmission window is as long as the longest of the retransmission subsets of the concurrent data streams. One or more new MPDUs may be added to the concurrent data streams in the second transmission window so that each concurrent data stream in the second transmission window carries a same number of MPDUs.

Abstract translation: 公开了用于在多用户多输入和多输出（MU-MIMO）通信系统中重新发送媒体访问控制（MAC）协议数据单元（MPDU）的方法，设备和系统。 发送第一传输窗口内的并发数据流。 每个并行数据流与不同的接收者相关联并且包括相等数目的MPDU。 如果存在错误，则可以获得针对每个并发数据流重发的MPDU的重传子集的指示。 每个并发数据流的重传子集在第二个传输窗口内被重传。 第二传输窗口的长度与并发数据流的最长的重传子集一样长。 一个或多个新MPDU可以被添加到第二传输窗口中的并发数据流中，使得第二传输窗口中的每个并发数据流携带相同数量的MPDU。

公开(公告)号：US08923282B2

公开(公告)日：2014-12-30

申请号：US13455582

申请日：2012-04-25

Applicant: Hemanth Sampath ,  Santosh Paul Abraham ,  Mohammad Hossein Taghavi Nasrabadi ,  Simone Merlin ,  Sameer Vermani

Inventor： Hemanth Sampath ,  Santosh Paul Abraham ,  Mohammad Hossein Taghavi Nasrabadi ,  Simone Merlin ,  Sameer Vermani

IPC: H04L12/50 ,  H04W88/00 ,  H04L25/02 ,  H04W28/06 ,  H04W28/18 ,  H04W84/12

CPC classification number: H04W88/00 ,  H04L25/0232 ,  H04W28/06 ,  H04W28/18 ,  H04W84/12

Abstract: Systems, methods, and devices for communicating long packets are described herein. In some aspects, one or more training fields are interposed between data symbols of a data unit. The training fields may comprise a short training field (STF) and/or a long training field (LTF). The training fields may be used by a receiving device to adjust settings or parameters used for decoding the data symbols.

Abstract translation: 这里描述了用于传送长分组的系统，方法和设备。 在一些方面，在数据单元的数据符号之间插入一个或多个训练场。 训练场可以包括短训练场（STF）和/或长训练场（LTF）。 接收设备可以使用训练场来调整用于解码数据符号的设置或参数。

公开(公告)号：US08743784B2

公开(公告)日：2014-06-03

申请号：US13197600

申请日：2011-08-03

Applicant: Hemanth Sampath ,  Vincent Knowles Jones, IV ,  Albert Van Zelst ,  Maarten Menzo Wentink ,  Santosh Paul Abraham ,  Simone Merlin

Inventor： Hemanth Sampath ,  Vincent Knowles Jones, IV ,  Albert Van Zelst ,  Maarten Menzo Wentink ,  Santosh Paul Abraham ,  Simone Merlin

IPC: H04J11/00 ,  H04B7/00 ,  H04W4/00 ,  H04J3/00

CPC classification number: H04L27/2613

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for using information in a Very High Throughput Signal B (VHT-SIG-B) field in the preamble of a null data packet (NDP). Retaining the VHT-SIG-B field in NDPs offers several advantages, such as maintaining a unified IEEE 802.11ac preamble structure, providing for 4 μs extra time to process beamforming feedback, and being able to use information in the VHT-SIG-B field to determine a level of interference in the NDP.

Abstract translation: 本公开的某些方面涉及在空数据分组（NDP）的前导码中的非常高吞吐量信号B（VHT-SIG-B）字段中使用信息的方法和装置。 保留NDP中的VHT-SIG-B字段提供了几个优点，例如保持统一的IEEE 802.11ac前导码结构，提供4μs的额外时间来处理波束成形反馈，并且能够使用VHT-SIG-B字段中的信息 以确定NDP中的干扰程度。

公开(公告)号：US08665767B2

公开(公告)日：2014-03-04

申请号：US12607542

申请日：2009-10-28

Applicant: Hemanth Sampath ,  Simone Merlin ,  Santosh P. Abraham ,  Maarten Menzo Wentink

Inventor： Hemanth Sampath ,  Simone Merlin ,  Santosh P. Abraham ,  Maarten Menzo Wentink

IPC: H04W72/04 ,  H04H20/71 ,  H04W4/00

CPC classification number: H04W74/0816 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/1621 ,  H04L1/1854 ,  H04L1/1887 ,  H04L12/189 ,  H04W72/042

Abstract: An apparatus is disclosed having a receiver configured to receive a request to transmit data from a wireless node in a plurality of wireless nodes; and a transmitter configured to transmit a multi-cast message to a set of wireless nodes in the plurality of wireless nodes to permit data transmission. A method for wireless communications is also disclosed.

Abstract translation: 公开了一种装置，其具有被配置为接收从多个无线节点中的无线节点发送数据的请求的接收机; 以及发射机，被配置为向所述多个无线节点中的一组无线节点发送多播消息以允许数据传输。 还公开了一种用于无线通信的方法。

公开(公告)号：US08594051B2

公开(公告)日：2013-11-26

申请号：US12883909

申请日：2010-09-16

Applicant: Gregory A. Breit ,  Santosh Paul Abraham ,  Sameer Vermani ,  Hemanth Sampath ,  Simone Merlin ,  Didier Johannes Richard Van Nee

Inventor： Gregory A. Breit ,  Santosh Paul Abraham ,  Sameer Vermani ,  Hemanth Sampath ,  Simone Merlin ,  Didier Johannes Richard Van Nee

IPC: H04W4/00

CPC classification number: H04L25/03343 ,  H04B7/0626 ,  H04B17/24 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0033 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0222 ,  H04L25/0228 ,  H04L2025/03426 ,  H04L2025/03802

Abstract: Methods and apparatuses are proposed for supporting one or more user-dependent channel state information (CSI) feedback rates in a downlink spatial division multiple access (SDMA) system. For certain aspects, an access point (AP) may receive a channel evolution feedback from one or more stations and send a request for CSI to the stations whose CSI values need to be updated. For certain aspects, the AP may poll the stations for updated CSI values. For certain aspects, deterministic back-off timers may be assigned to the stations indicating when to send their CSI feedback. The proposed methods may improve system performance.

公开(公告)号：US20130272347A1

公开(公告)日：2013-10-17

申请号：US13444176

申请日：2012-04-11

Applicant: Simone Merlin ,  Albert van Zelst ,  Maarten Menzo Wentink

Inventor： Simone Merlin ,  Albert van Zelst ,  Maarten Menzo Wentink

IPC: H04B1/38

CPC classification number: H04B1/38 ,  H04B7/0452

Abstract: Link adaptation is supported in a multi-user MIMO environment. In some aspects, a frame including a transmission parameter request (e.g., a null data packet announcement (NDPA) including a modulation and coding scheme (MCS) request (MRQ)) specifies multiple destinations. In some aspects, a decision to transmit a frame specifying multiple destinations is based on whether all of destinations support providing feedback to such a frame. In some aspects, transmission parameter feedback (e.g., MCS feedback (MFB)) including channel estimate information is provided in a case where MFB of type MU is requested.

Abstract translation: 在多用户MIMO环境中支持链路自适应。 在一些方面，包括传输参数请求（例如，包括调制和编码方案（MCS）请求（MRQ）的空数据分组通知（NDPA））的帧指定多个目的地。 在一些方面，发送指定多个目的地的帧的决定基于所有目的地是否支持向这样的帧提供反馈。 在一些方面，在请求类型MU的MFB的情况下提供包括信道估计信息的传输参数反馈（例如，MCS反馈（MFB））。

公开(公告)号：US20130272209A1

公开(公告)日：2013-10-17

申请号：US13444134

申请日：2012-04-11

Applicant: Simone Merlin ,  Albert Van Zelst ,  Maarten Menzo Wentink

Inventor： Simone Merlin ,  Albert Van Zelst ,  Maarten Menzo Wentink

IPC: H04W72/04

CPC classification number: H04L1/0003 ,  H04B7/0452 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/06

Abstract: Link adaptation is supported in a multi-user MIMO environment. In some aspects, a frame including a transmission parameter request (e.g., a null data packet announcement (NDPA) including a modulation and coding scheme (MCS) request (MRQ)) specifies multiple destinations. In some aspects, a decision to transmit a frame specifying multiple destinations is based on whether all of destinations support providing feedback to such a frame. In some aspects, transmission parameter feedback (e.g., MCS feedback (MFB)) including channel estimate information is provided in a case where MFB of type MU is requested.

Abstract translation: 在多用户MIMO环境中支持链路自适应。 在一些方面，包括传输参数请求（例如，包括调制和编码方案（MCS）请求（MRQ）的空数据分组通知（NDPA））的帧指定多个目的地。 在一些方面，发送指定多个目的地的帧的决定基于所有目的地是否支持向这样的帧提供反馈。 在一些方面，在请求类型MU的MFB的情况下提供包括信道估计信息的传输参数反馈（例如，MCS反馈（MFB））。