公开(公告)号：US20190229951A1

公开(公告)日：2019-07-25

申请号：US16372201

申请日：2019-04-01

Applicant: Cisco Technology, Inc.

Inventor： Brian D. HART ,  David S. KLOPER ,  Jiunming HUANG ,  Glendon L. AKINS, III

IPC: H04L25/00 ,  H04W88/08 ,  H04L27/26

CPC classification number: H04L25/00 ,  H04L5/0048 ,  H04L27/26 ,  H04L27/2647 ,  H04W74/0808 ,  H04W88/085 ,  H04W88/12

Abstract: Techniques are disclosed to reduce latency of processing for access points using a central controller. For example, an example method of wireless communication includes receiving, at an access point, a signal wirelessly. The method further includes filtering the signal using a first passband filter having a first bandwidth to generate a first filtered signal. The method further includes filtering the signal using a second passband filter having a second bandwidth to generate a second filtered signal, wherein the first bandwidth is less than the second bandwidth. The method further includes determining whether the signal includes a packet based on the first filtered signal and generating a control signal indicative of the determination. The method further includes transmitting the control signal and the second filtered signal to a central controller.

公开(公告)号：US20180287674A1

公开(公告)日：2018-10-04

申请号：US15477620

申请日：2017-04-03

Applicant: Cisco Technology, Inc.

Inventor： David S. KLOPER ,  Mithat C. DOGAN ,  Matthew A. SILVERMAN ,  Brian D. HART ,  Jiunming HUANG

IPC: H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0452 ,  H04B7/0426

Abstract: The present disclosure discloses that a device uses precoding to transmit independent data streams to existing users and additional independent data streams to one or more new users simultaneously. During a first transmission of a first one or more data streams that are precoded using a first precoding matrix, the device determines to transmit a second one or more data streams in a second transmission. Before the first transmission is complete, the device calculates a combined precoding matrix for precoding the first one or more data streams and the second one or more data streams. The device transmits the first one or more data streams in the first transmission and the second one or more data streams in the second transmission simultaneously using the combined precoding matrix.

公开(公告)号：US20170206421A1

公开(公告)日：2017-07-20

申请号：US14996901

申请日：2016-01-15

Applicant: Cisco Technology, Inc.

Inventor： Santosh G. PANDEY ,  Anshul TYAGI ,  Brian D. HART ,  Andrew F. MYLES

IPC: G06K9/00 ,  G06K9/46 ,  G06T7/00

CPC classification number: G06K9/00711 ,  G06K9/00778 ,  G06K9/46 ,  G06K2009/4666 ,  G06T7/00 ,  G06T2207/30196 ,  G06T2207/30242

Abstract: Systems, methods, and computer program products to perform an operation comprising receiving, from a video monitoring system, a count of people detected at a first location, wherein the video monitoring system comprises a camera configured to capture video of the first location, receiving a count of wireless devices detected in a second location, and applying a first correction factor to the count of wireless devices detected at the second location to determine a number of people present in the second location, wherein the first correction factor is based on the count of people detected by the video monitoring system and a count of wireless devices in the first location.