公开(公告)号：US20200170042A1

公开(公告)日：2020-05-28

申请号：US16779006

申请日：2020-01-31

Applicant: Cisco Technology, Inc.

Inventor： Simon Barber

IPC: H04W74/08

Abstract: The subject disclosure relates to a computer-implemented method for reducing access contention in a wireless medium. In some aspects, a method of the technology includes steps for exchanging data packets with multiple client devices in a wireless network, and based on the data exchange, identifying a first device from among the multiple client devices for which one or more higher-layer (e.g., Layer 3 and/or Layer 4) packets are likely to be received. In some aspects, a method of the technology can further include steps for broadcasting a lower-layer (e.g., Layer 2) packet to the plurality of client devices, wherein the lower-layer packet includes an extended duration field to suppress transmission by one or more listening client devices until at least one subsequent higher-layer packet is received from the first device. Systems and machine-readable media are also provided.

公开(公告)号：US20200076926A1

公开(公告)日：2020-03-05

申请号：US16118202

申请日：2018-08-30

Applicant: Cisco Technology, Inc.

Inventor： Simon Barber ,  Derrick Pallas ,  Apurv Bhartia

IPC: H04L29/06 ,  H04L12/801

Abstract: Systems, methods, and computer-readable media for reducing latency in TCP connections that utilize loss insensitive congestion control mechanisms. In some examples, packet arrival times for one or more TCP packets of a TCP connection are analyzed and based on the analysis, it is determined whether the packet arrival times are constantly spaced over a period of time. Whether a TCP control mechanism for the TCP connection is loss insensitive is identified based on whether the packet arrival times are constantly spaced over time. If it is determined that the TCP control mechanism is loss insensitive, then a total number of acknowledgement packets transmitted during the TCP connection and associated with transmission of the one or more TCP packets in the TCP connection is reduced.

公开(公告)号：US10728368B2

公开(公告)日：2020-07-28

申请号：US16118202

申请日：2018-08-30

Applicant: Cisco Technology, Inc.

Inventor： Simon Barber ,  Derrick Pallas ,  Apurv Bhartia

IPC: G06F11/00 ,  H04L29/06 ,  H04L12/801

Abstract: Systems, methods, and computer-readable media for reducing latency in TCP connections that utilize loss insensitive congestion control mechanisms. In some examples, packet arrival times for one or more TCP packets of a TCP connection are analyzed and based on the analysis, it is determined whether the packet arrival times are constantly spaced over a period of time. Whether a TCP control mechanism for the TCP connection is loss insensitive is identified based on whether the packet arrival times are constantly spaced over time. If it is determined that the TCP control mechanism is loss insensitive, then a total number of acknowledgement packets transmitted during the TCP connection and associated with transmission of the one or more TCP packets in the TCP connection is reduced.

公开(公告)号：US20190028482A1

公开(公告)日：2019-01-24

申请号：US15656184

申请日：2017-07-21

Applicant: Cisco Technology, Inc.

Inventor： Derrick Pallas ,  Eric Maassmann ,  Simon Barber

IPC: H04L29/06 ,  H04W48/14 ,  H04W48/16 ,  H04L29/08 ,  H04W4/20 ,  H04W48/02 ,  H04W12/08

CPC classification number: H04L63/105 ,  H04L63/08 ,  H04L63/20 ,  H04L67/36 ,  H04W4/21 ,  H04W12/0051 ,  H04W12/08 ,  H04W48/00 ,  H04W48/02 ,  H04W48/14 ,  H04W48/16 ,  H04W48/18 ,  H04W84/12 ,  H04W88/10

Abstract: Systems, methods, and computer-readable media for steering authorized wireless clients to preferred or restricted wireless networks. In some examples, an access point associated with a preferred wireless network and a non-preferred wireless network can receive one or more probe requests from a wireless client. The access point can withhold a response to the one or more probe requests from the wireless client until a probe response triggering event is detected. In response to detecting the probe response triggering event, the access point can steer the wireless client towards the wireless network by sending, to the wireless client, a first probe response associated with the preferred wireless network and withholding a second probe response associated with the non-preferred wireless network.

公开(公告)号：US20230209603A1

公开(公告)日：2023-06-29

申请号：US18179182

申请日：2023-03-06

Applicant: Cisco Technology, Inc.

Inventor： Simon Barber

IPC: H04W74/08

CPC classification number: H04W74/0816 ,  H04L69/16

Abstract: The subject disclosure relates to a computer-implemented method for reducing access contention in a wireless medium. In some aspects, a method of the technology includes steps for exchanging data packets with multiple client devices in a wireless network, and based on the data exchange, identifying a first device from among the multiple client devices for which one or more higher-layer (e.g., Layer 3 and/or Layer 4) packets are likely to be received. In some aspects, a method of the technology can further include steps for broadcasting a lower-layer (e.g., Layer 2) packet to the plurality of client devices, wherein the lower-layer packet includes an extended duration field to suppress transmission by one or more listening client devices until at least one subsequent higher-layer packet is received from the first device. Systems and machine-readable media are also provided.

公开(公告)号：US10742561B2

公开(公告)日：2020-08-11

申请号：US15471807

申请日：2017-03-28

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Simon Barber

IPC: H04L12/855 ,  H04L12/26 ,  H04L12/857 ,  H04W28/02 ,  H04L12/841

Abstract: The disclosed technology addresses the need in the art for a solution configured to prevent network retransmission timeouts. A system is configured to receive a data packet originating from a sender and forward the data packet to a receiver. The system receives, from the receiver, an acknowledgment message that corresponds to the data packet and holds the acknowledgment message in a buffer until a delay time period expires, wherein the delay time period is determined based on a log of acknowledgment times. When the delay time period expires, the system forwards the acknowledgement to the sender.

公开(公告)号：US20180338315A1

公开(公告)日：2018-11-22

申请号：US15690979

申请日：2017-08-30

Applicant: Cisco Technology, Inc.

Inventor： Bo Chen ,  Mark Hendrick ,  Feng Wang ,  Derrick Pallas ,  Simon Barber

IPC: H04W72/08 ,  H04W36/00 ,  H04W48/20

CPC classification number: H04W72/085 ,  H04L43/08 ,  H04W16/10 ,  H04W24/02 ,  H04W36/0061 ,  H04W40/12 ,  H04W48/20 ,  H04W84/12 ,  H04W88/08

Abstract: Aspects of the disclosed technology address the problems of calculating and performing channel assignments for access points (APs) in a wireless network. In some aspects, a process for performing channel assignment can include steps for identifying multiple APs in a network, each of the wireless APs being associated with an initial channel assignment, selecting an AP from among the wireless APs in the network, determining a channel quality for the initial channel assignment associated with the AP, and selecting a new channel for the AP based on the channel quality. In some aspects, the process further includes steps for selecting a second AP, determining a channel quality for the initial channel assignment associated with the second AP, and selecting a new channel for the second AP based on the channel quality. Systems and machine-readable media are also provided.

公开(公告)号：US10440723B2

公开(公告)日：2019-10-08

申请号：US15690979

申请日：2017-08-30

Applicant: Cisco Technology, Inc.

Inventor： Bo Chen ,  Mark Hendrick ,  Feng Wang ,  Derrick Pallas ,  Simon Barber

IPC: H04W72/08 ,  H04W36/00 ,  H04W48/20 ,  H04L12/26 ,  H04W16/10 ,  H04W40/00 ,  H04W24/02 ,  H04W84/12 ,  H04W88/08

Abstract: Aspects of the disclosed technology address the problems of calculating and performing channel assignments for access points (APs) in a wireless network. In some aspects, a process for performing channel assignment can include steps for identifying multiple APs in a network, each of the wireless APs being associated with an initial channel assignment, selecting an AP from among the wireless APs in the network, determining a channel quality for the initial channel assignment associated with the AP, and selecting a new channel for the AP based on the channel quality. In some aspects, the process further includes steps for selecting a second AP, determining a channel quality for the initial channel assignment associated with the second AP, and selecting a new channel for the second AP based on the channel quality. Systems and machine-readable media are also provided.

公开(公告)号：US20190021114A1

公开(公告)日：2019-01-17

申请号：US15646974

申请日：2017-07-11

Applicant: Cisco Technology, Inc.

Inventor： Simon Barber

IPC: H04W74/08

Abstract: The subject disclosure relates to a computer-implemented method for reducing access contention in a wireless medium. In some aspects, a method of the technology includes steps for exchanging data packets with multiple client devices in a wireless network, and based on the data exchange, identifying a first device from among the multiple client devices for which one or more higher-layer (e.g., Layer 3 and/or Layer 4) packets are likely to be received. In some aspects, a method of the technology can further include steps for broadcasting a lower-layer (e.g., Layer 2) packet to the plurality of client devices, wherein the lower-layer packet includes an extended duration field to suppress transmission by one or more listening client devices until at least one subsequent higher-layer packet is received from the first device. Systems and machine-readable media are also provided.

公开(公告)号：US12108453B2

公开(公告)日：2024-10-01

申请号：US18179182

申请日：2023-03-06

Applicant: Cisco Technology, Inc.

Inventor： Simon Barber

IPC: H04W74/0816 ,  H04L69/16 ,  H04W84/12

CPC classification number: H04W74/0816 ,  H04L69/16 ,  H04W84/12

Abstract: The subject disclosure relates to a computer-implemented method for reducing access contention in a wireless medium. In some aspects, a method of the technology includes steps for exchanging data packets with multiple client devices in a wireless network, and based on the data exchange, identifying a first device from among the multiple client devices for which one or more higher-layer (e.g., Layer 3 and/or Layer 4) packets are likely to be received. In some aspects, a method of the technology can further include steps for broadcasting a lower-layer (e.g., Layer 2) packet to the plurality of client devices, wherein the lower-layer packet includes an extended duration field to suppress transmission by one or more listening client devices until at least one subsequent higher-layer packet is received from the first device. Systems and machine-readable media are also provided.