公开(公告)号：US20170086134A1

公开(公告)日：2017-03-23

申请号：US15307888

申请日：2014-06-30

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Souvik Sen ,  Anil Gupta ,  Manfred R. Arndt. ,  Jung Gun Lee

IPC: H04W48/16 ,  H04L12/26 ,  H04W48/20 ,  H04W4/02

CPC classification number: H04W48/16 ,  H04L43/16 ,  H04W4/027 ,  H04W48/20 ,  H04W64/006

Abstract: Described herein are techniques for performing a channel scan based on a mobility state of a device. The mobility state of a device relative to an access point may be determined using time-of-flight information. A channel scan may be performed based on the mobility state determination.

公开(公告)号：US20160265918A1

公开(公告)日：2016-09-15

申请号：US15032060

申请日：2013-10-30

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Souvik Sen ,  Kyu Han KIM ,  Jindan ZHU ,  Prasant MOHAPATRA

IPC: G01C21/14 ,  G01S1/08

CPC classification number: G01C21/14 ,  G01C21/206 ,  G01S1/08 ,  G01S5/0252 ,  G01S5/0263 ,  H04W4/027 ,  H04W4/043 ,  H04W84/12

Abstract: According to an example, a signal space based navigation apparatus may receive traces of wireless signal observations and corresponding pedestrian deadreckoning (PDR) traces between different ones of the wireless signal observations from a plurality of user devices. A plurality of wireless clusters may be generated based on the traces of wireless signal observations. A PDR displacement vector may be generated between two or more of the wireless clusters based on the two or more of the wireless clusters and a subset of the PDR traces corresponding to the two or more of the wireless clusters. A sensing map may be generated based on the plurality of wireless clusters and a plurality of PDR displacement vectors including the PDR displacement vector.

Abstract translation: 根据示例，基于信号空间的导航设备可以从多个用户设备接收无线信号观测的踪迹和来自多个用户设备的不同的无线信号观测之间的对应的行人解码（PDR）迹线。 可以基于无线信号观测的踪迹来生成多个无线群集。 可以基于两个或更多个无线集群和对应于两个或更多无线集群的PDR轨迹的子集，在两个或更多个无线集群之间生成PDR位移矢量。 可以基于多个无线群集和包括PDR位移向量的多个PDR位移向量来生成感测地图。

公开(公告)号：US10477433B2

公开(公告)日：2019-11-12

申请号：US15326029

申请日：2014-07-30

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Souvik Sen ,  Li Sun

IPC: H04W28/06 ,  H04B7/06 ,  H04L12/26

Abstract: According to an example, mobility-aware frame aggregation may include using mobility information related to a transmitter and/or a receiver associated with transmission of data over a wireless channel to determine an aggregation size for frame aggregation of the data to be transmitted over the wireless channel. The mobility information may be based on subcarriers and antennas related to the wireless channel.

公开(公告)号：US10383084B2

公开(公告)日：2019-08-13

申请号：US15876242

申请日：2018-01-22

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Souvik Sen ,  Dongho Kim

IPC: H04W64/00 ,  G01S5/14 ,  G01S13/76 ,  G01S13/87 ,  H04W84/12

Abstract: Described herein are techniques for determining a location of a disconnected device. In an example, a method includes instructing a first access point to sniff a wireless channel for probe request packets from disconnected devices, and instructing the first access point to send a distance-probing packet to a disconnected device after receiving a probe request packet from the disconnected device. The method further includes receiving, from the first access point, a MAC address of the disconnected device determined from the received probe request packet. After receiving the MAC address from the first access point, a group of access points is instructed to send distance-probing packets to the disconnected device. The method further includes receiving, from the first access point and the group of access points, time-of-flight measurements associated with the disconnected device. A location of the disconnected device can be determined using the time-of-flight measurements.

公开(公告)号：US10349214B2

公开(公告)日：2019-07-09

申请号：US15848911

申请日：2017-12-20

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Souvik Sen ,  Jung Gun Lee ,  Alexander Timothy Mariakakis

IPC: H04W4/02 ,  G01S5/02 ,  H04W64/00 ,  G01S5/10

Abstract: Localizing a location of a mobile device may be performed by obtaining times of flights between the mobile device and an access point at a first and second location. A heading of the mobile device and a distance between the first and second location may be further obtained. The times of flight, heading, and distance may be used to localize the second location.

公开(公告)号：US10299243B2

公开(公告)日：2019-05-21

申请号：US15319029

申请日：2014-07-30

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Souvik Sen ,  Li Sun

IPC: H04W4/00 ,  H04W64/00 ,  H04B7/06 ,  H04W84/12 ,  H04B7/0452 ,  H04W88/08

Abstract: According to an example, mobility may be determined between a mobile device and a wireless access point (AP).

公开(公告)号：US20180183616A1

公开(公告)日：2018-06-28

申请号：US15735225

申请日：2015-06-26

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Jeongkeun Lee ,  Souvik Sen ,  Stephane Laroche

IPC: H04L12/18 ,  H04L12/26

CPC classification number: H04L12/189 ,  H04L12/185 ,  H04L12/1854 ,  H04L41/0896 ,  H04L43/08 ,  H04L43/0817 ,  H04L43/16 ,  H04W4/06 ,  H04W4/08 ,  H04W28/10 ,  H04W28/22

Abstract: An example system includes a transceiver. The transceiver communicates multicast frames to a plurality of client devices in a multicast group. The system further includes a controller. The controller determines that a predetermined time has passed since the transceiver most recently sent a unicast transmission to one of the plurality of client devices. The controller instructs the transceiver to transmit a unicast frame to the one of the plurality of client devices. The controller computes a data rate for the one of the plurality of client devices based on the transmission of the unicast frame to the one of the plurality of client devices.

公开(公告)号：US20170181045A1

公开(公告)日：2017-06-22

申请号：US15327119

申请日：2014-08-18

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Souvik Sen ,  Anil Gupta ,  Manfred R. Arndt

IPC: H04W36/00 ,  H04W36/32 ,  H04W36/30 ,  H04W52/32 ,  H04W52/38 ,  H04W4/02 ,  H04B17/318 ,  H04W48/16

CPC classification number: H04W36/0094 ,  H04B17/318 ,  H04W4/027 ,  H04W4/029 ,  H04W36/30 ,  H04W36/32 ,  H04W48/04 ,  H04W48/16 ,  H04W48/20 ,  H04W52/322 ,  H04W52/386 ,  H04W88/12

Abstract: Described herein are techniques for selecting a subset of access points. In an example, time-of-flight information and signal strength information associated with a device may be received from multiple access points. A subset of the access points may be selected based on the time-of-flight information, signal strength information, and load information. The subset of access points may be instructed to respond to a probe request from the device.

公开(公告)号：US20170055217A1

公开(公告)日：2017-02-23

申请号：US15307546

申请日：2014-06-10

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Souvik Sen ,  Dongho Kim

IPC: H04W52/02 ,  H04W40/00

CPC classification number: H04W52/0235 ,  H04W40/005 ,  H04W52/0229 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/23

Abstract: Example implementations relate to an access point. One example apparatus includes a transceiver and a processor. The processor is to instruct the transceiver to transmit a first wake up message to a client device at a first transmission rate via a wireless network. The processor, in response to receiving a sleep message from the client device via the transceiver, is to instruct the transceiver to transmit a second wake up message to the client device at a second transmission rate that is greater than the first transmission rate.

Abstract translation: 示例实现涉及接入点。 一个示例性设备包括收发器和处理器。 处理器是指示收发器经由无线网络以第一传输速率向客户端设备发送第一个唤醒消息。 处理器响应于经由收发器从客户端设备接收到睡眠消息，是指示收发器以大于第一传输速率的第二传输速率向客户端设备发送第二唤醒消息。