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    Uplink Multi-User-MIMO without Client Assistance
    12.
    发明申请
    Uplink Multi-User-MIMO without Client Assistance 有权
    无需客户端协议的上行多用户MIMO

    公开(公告)号：US20170012752A1

    公开(公告)日：2017-01-12

    申请号：US14796001

    申请日：2015-07-10

    Applicant: Cisco Technology, Inc.

    Inventor： Brian D. Hart ,  Matthew A. Silverman ,  Paul J. Stager ,  David Kloper

    IPC: H04L5/00 ,  H04B7/04 ,  H04W72/04

    CPC classification number: H04W72/0413 ,  H04B7/0452 ,  H04B7/0626 ,  H04L1/18 ,  H04L5/0048 ,  H04W72/042 ,  H04W84/12

    Abstract: In accordance with an embodiment, a method is provided in which a first wireless access point sends a downlink multi-user multiple-input multiple-output (MIMO) transmission to a plurality of client devices. The downlink multi-user MIMO transmission is configured to solicit acknowledgments from two or more of the plurality of client devices. The acknowledgments are received at a plurality of antennas of the first wireless access point from the two or more of the plurality of client devices. Uplink multi-user MIMO processing of the acknowledgments is performed from the two or more of the plurality of client devices to recover the acknowledgments respectively from each of the two or more of the plurality of client devices.

    Abstract translation: 根据实施例，提供了一种方法，其中第一无线接入点向多个客户端设备发送下行链路多用户多输入多输出（MIMO）传输。 下行链路多用户MIMO传输被配置为从多个客户端设备中的两个或多个客户端设备请求确认。 在多个客户端设备中的两个或更多个的第一无线接入点的多个天线处接收确认。 从多个客户端设备中的两个或多个客户机设备执行确认的上行链路多用户MIMO处理，以分别从多个客户端设备中的两个或多个客户机设备中的每一个恢复确认。

    Probe Response Suppression
    13.
    发明申请
    Probe Response Suppression 有权
    探测响应抑制

    公开(公告)号：US20160309537A1

    公开(公告)日：2016-10-20

    申请号：US14687241

    申请日：2015-04-15

    Applicant: Cisco Technology, Inc.

    Inventor： Brian D. Hart ,  John Matthew Swartz ,  Joshua Suhr ,  Matthew A. Silverman ,  Tak Ming Pang

    IPC: H04W76/02 ,  H04B17/318 ,  H04W24/08

    CPC classification number: H04W76/027 ,  H04B17/318 ,  H04W76/18

    Abstract: In response to receiving a probe request from a mobile client, an access point determines whether it should suppress a probe response. The access point receives a probe request from a wireless client device, and prepares a probe response to respond to the probe request. The access point determines whether the wireless client device is likely to associate with the wireless access point. Responsive to a determination that the wireless client device is unlikely to associate with the wireless access point, the access point suppresses the transmission of the probe response.

    Abstract translation: 响应于从移动客户端接收到探测请求，接入点确定是否应该抑制探测响应。 接入点从无线客户端设备接收探测请求，并准备探测响应以响应探测请求。 接入点确定无线客户端设备是否可能与无线接入点相关联。 响应于无线客户端设备不可能与无线接入点相关联的确定，接入点抑制探测响应的传输。

    Location Measurement Optimized Off-Channel Scanning and Grouping of Access Points
    14.
    发明申请
    Location Measurement Optimized Off-Channel Scanning and Grouping of Access Points 有权
    位置测量优化的离线扫描和接入点分组

    公开(公告)号：US20160157225A1

    公开(公告)日：2016-06-02

    申请号：US14558200

    申请日：2014-12-02

    Applicant: Cisco Technology, Inc.

    Inventor： Shaunak Joshi ,  Paul J. Stager ,  Brian D. Hart ,  Santosh Pandey ,  Matthew A. Silverman

    IPC: H04W72/04 ,  H04W64/00 ,  H04W4/02

    CPC classification number: H04W72/0446 ,  H04W4/02 ,  H04W64/00

    Abstract: A plurality of time slots are allocated during which a location procedure is performed for one or more target wireless devices. Select ones of a plurality of wireless access points at different positions are assigned to each time slot such that multiple wireless access points assigned to a given time slot are sufficiently separated. In addition, wireless access points are assigned to a corresponding one of a plurality of groups for each time slot such that wireless access points assigned to a group tune to a channel used by a wireless access point in the group that transmits one or more frames that are intended to provoke one or more response frames from the one or more wireless devices.

    Abstract translation: 分配多个时隙，在该时隙期间为一个或多个目标无线设备执行定位过程。 将选择不同位置的多个无线接入点中的一个分配给每个时隙，使得分配给给定时隙的多个无线接入点被充分分离。 此外，无线接入点被分配给每个时隙的多个组中的相应一个组，使得分配给组乐曲的无线接入点被组中的无线接入点使用的信道发送一个或多个帧， 旨在引起来自一个或多个无线设备的一个或多个响应帧。

    Distributed processing distributed-input distributed-output (DIDO) wireless communication
    15.
    发明授权
    Distributed processing distributed-input distributed-output (DIDO) wireless communication 有权
    分布式处理分布式输入分布式输出（DIDO）无线通信

    公开(公告)号：US09241275B2

    公开(公告)日：2016-01-19

    申请号：US13780513

    申请日：2013-02-28

    Applicant: Cisco Technology, Inc.

    Inventor： David Kloper ,  Brian D. Hart ,  Paul J. Stager ,  Matthew A. Silverman

    IPC: H04W16/28 ,  H04B7/02

    CPC classification number: H04W16/28 ,  H04B7/024

    Abstract: Techniques are presented for distributed processing Distributed-Input Distributed-Output (DIDO) wireless communication. A plurality of base stations (e.g., APs) are provided, each configured to wirelessly serve one or more wireless devices (e.g., clients). At least first and second base stations are configured to transmit simultaneously at an agreed upon time. The first and second base stations are each configured to locally generate steering matrix information used to spatially precode their respective data transmissions in order to steer their respective data transmissions to their one or more wireless devices while nulling to the one or more client devices of the other base station. Moreover, the first and second base stations are each configured to locally generate a transmit waveform by applying the steering matrix information to their respective data transmissions.

    Abstract translation: 提出了分布式处理分布式输入分布式输出（DIDO）无线通信的技术。 提供了多个基站（例如，AP），每个基站被配置为无线地服务于一个或多个无线设备（例如，客户端）。 至少第一和第二基站被配置为在商定的时间同时传输。 第一和第二基站各自被配置为本地生成用于对其各自的数据传输进行空间预编码的导向矩阵信息，以便将它们各自的数据传输转向其一个或多个无线设备，同时使另一个或多个无线设备的一个或多个客户端设备归零 基站。 此外，第一和第二基站各自被配置为通过将导引矩阵信息应用于它们各自的数据传输来本地生成发送波形。

    Explicit and Implicit Hybrid Beamforming Channel Sounding
    16.
    发明申请
    Explicit and Implicit Hybrid Beamforming Channel Sounding 有权
    显式和隐式混合波束形成通道探测

    公开(公告)号：US20140154992A1

    公开(公告)日：2014-06-05

    申请号：US13691912

    申请日：2012-12-03

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Matthew A. Silverman ,  Jeffrey R. Adams ,  David Kloper ,  Yanxin Na ,  Narayan Vishwanathan ,  Daniel Wee

    IPC: H04W16/28

    CPC classification number: H04W16/28 ,  H04B7/0626 ,  H04B7/0634

    Abstract: A channel sounding scheme is presented herein that relies on a combination of a first channel sounding procedure and a second channel sounding procedure. The first channel sounding technique is one that involves an exchange of dedicated channel sounding related signals to determine channel conditions between the first wireless communication device and the particular second wireless communication device. The second channel sounding technique is one in which channel conditions are implicitly discovered from any signals transmitted by the particular second wireless communication device to the first wireless communication device. A first wireless communication device computes updates to steering matrix information used for beamforming one or more signal streams to a particular second wireless communication device based on a combination of the first channel sounding technique and the second channel sounding technique.

    Abstract translation: 此处呈现依赖于第一声道探测程序和第二声道探测程序的组合的声道探测方案。 第一通道探测技术是涉及专用信道探测相关信号的交换以确定第一无线通信设备和特定第二无线通信设备之间的信道状况的技术。 第二信道探测技术是从特定的第二无线通信设备向第一无线通信设备发送的任何信号隐含地发现信道条件的方法。 第一无线通信设备基于第一信道探测技术和第二信道探测技术的组合，计算用于将一个或多个信号流波束成形到特定第二无线通信设备的导引矩阵信息的更新。

    Systems and Methods to Delegate Out-of-Band Management of a Shared Ultra-Wideband Clock
    17.
    发明申请
    Systems and Methods to Delegate Out-of-Band Management of a Shared Ultra-Wideband Clock 有权

    公开(公告)号：US20250030451A1

    公开(公告)日：2025-01-23

    申请号：US18354960

    申请日：2023-07-19

    Applicant: Cisco Technology, Inc.

    Inventor： Matthew A. Silverman ,  Robert C. Badea ,  Jerome Henry ,  Robert E. Barton

    IPC: H04B1/7183 ,  H04W64/00 ,  H04W76/10

    Abstract: A system and a method to delegate out-of-band (OOB) management of a shared ultra-wideband (UWB) clock. The system may comprise a tagged device with a UWB tag and multiple anchors. The tagged device may be configured to establish at least one OOB communication link with at least one anchor, transmit UWB compatibility information to multiple anchors, establish a UWB communication links with the anchors, and exchange OOB synchronization parameters and UWB synchronization parameters with the anchors. Further, the tagged device may be configured to define new instructions for ranging round operations based at least in part upon the OOB synchronization parameters and the UWB synchronization parameters, update existing instructions with the new instructions in the ranging round operations, and perform the ranging round in accordance with the updated instructions.

    PHYSICAL LAYER TRANSMIT MODE FOR IMPROVING SIGNAL-TO-INTERFERENCE ON BACKSCATTER MESSAGE
    18.
    发明申请
    PHYSICAL LAYER TRANSMIT MODE FOR IMPROVING SIGNAL-TO-INTERFERENCE ON BACKSCATTER MESSAGE 有权

    公开(公告)号：US20240380454A1

    公开(公告)日：2024-11-14

    申请号：US18459519

    申请日：2023-09-01

    Applicant: Cisco Technology, Inc.

    Inventor： Matthew A. Silverman ,  Sivadeep Reddy Kalavakuru ,  Ardalan Alizadeh

    IPC: H04B7/06 ,  H04B7/22

    Abstract: Improving backscattering and, specifically, a physical Layer transmit mode for improving the Signal-to-Interference Ratio (SIR) of backscatter signals may be provided. A transmitter may determine a Backscatter Device (BKD) to send a transmission to for backscattering. The transmitter may determine a width of a puncture in the transmission. Next, the transmitter may transmit the transmission to the BKD. The transmitter may receive feedback from a receiver about decoding a backscattered signal generated using the transmission. The transmitter may adjust the width of the puncture for a subsequent transmission based on the feedback.

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