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公开(公告)号：US10827404B2
公开(公告)日：2020-11-03
申请号：US16246408
申请日：2019-01-11
Applicant: Cisco Technology, Inc.
Inventor： Ram Gupta , Aditya Kadur , Mark Hendrick, Jr. , Bo Chen , Apurv Bhartia , Derrick Lyndon Pallas , Chun Meng Yu
Abstract: A method includes obtaining client information from a set of access points. The client information indicates client devices detected by each access point in the set of access points. In some implementations, the method includes grouping the set of access points into a plurality of access point groups based on the client information. The grouping allows each client device to associate with an access point from at least two different access point groups. The method includes, for a first access point group of the plurality of access point groups, migrating the client devices associated with access points in the first access point group to access points in a second access point group of the plurality of access point groups. In some implementations, the method includes configuring the access points in the first access point group while maintaining configuration of the access points in the second access point group.
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公开(公告)号：US10779246B1
公开(公告)日：2020-09-15
申请号：US16406238
申请日：2019-05-08
Applicant: Cisco Technology, Inc.
Inventor： Bo Chen , Apurv Bhartia , Derrick Pallas
IPC: H04W24/02 , H04W52/18 , H04W52/36 , H04W52/24 , H04B17/318
Abstract: Systems, methods, and computer-readable media for dynamically controlling an RxSOP threshold of an access point. In some examples, a current RxSOP threshold of an access point of a plurality of access points in a network environment providing wireless access to network services is determined. Wireless characteristics of one or more clients and the plurality of access points associated with the access point can be identified. Specifically, wireless characteristics of the one or more client and the plurality of access points in wirelessly providing and accessing the network services through the network environment are identified. The current RxSOP threshold of the access point can be dynamically modulated based on the wireless characteristics of the one or more clients and the plurality of access points.
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公开(公告)号：US10897725B2
公开(公告)日：2021-01-19
申请号：US16417083
申请日：2019-05-20
Applicant: Cisco Technology, Inc.
Inventor： Apurv Bhartia , Feng Wang , Derrick Pallas
IPC: H04W28/10 , H04L12/801 , H04W28/02 , H04L12/893 , H04W84/12
Abstract: Disclosed is a method includes treating, at an access point, a data flow between a first station and a second station during a first period of time as a non-fast flow. After a condition is met, the method includes marking the data flow as a fastACK flow during a second period of time and during the second period of time, storing data frames in the data flow at the access point to yield stored data frames. Next, the method includes generating a spoofed TCP acknowledgment signal on behalf of the first station and associated with the stored data frames and transmitting the spoofed TCP acknowledge signal to the second station.
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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.
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公开(公告)号：US20190274073A1
公开(公告)日：2019-09-05
申请号：US16409700
申请日：2019-05-10
Applicant: Cisco Technology Inc.
Inventor： Apurv Bhartia , Lizhen Lin
Abstract: A wireless network system that provides for seamless roaming of client devices is described. The wireless network system includes a plurality of access points. One access point is designated as the primary access point that is responsible for handling encrypted communication with the client device. The primary access point has access to the necessary encryption key(s) for encrypted communication. The primary access point receives broadcast updates from the other access points that includes connection scores. When a connection score for a second access point exceeds the connection score of the current primary access point, the current primary access point designates the second access point as the new primary access point and sends the new primary access point the encryption key(s) for encrypted communication. The handoff is seamless and does not require a new handshake between the new primary access point and the client device.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20210204151A1
公开(公告)日：2021-07-01
申请号：US16881421
申请日：2020-05-22
Applicant: Cisco Technology, Inc.
Inventor： Sebastien Christophe Henri , Apurv Bhartia
Abstract: A method includes sending at least one probe to a mobile device to determine a burst size of at least one burst; sending the at least one burst to the mobile device, the at least one burst includes a first and a second number of probes, the first number of probes are sent to the mobile device at a first time and the second number of probes are sent to the mobile device at a second time after the first time, and the first number of probes and the second number of probes are based on the burst size; receiving an acknowledgement of receipt of the first number of probes at a third time; receiving an acknowledgement of receipt of the second number of probes at a fourth time; and determining, based on a difference between the third time and the fourth time, a throughput of the mobile device.
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公开(公告)号：US10728849B2
公开(公告)日：2020-07-28
申请号：US16177942
申请日：2018-11-01
Applicant: Cisco Technology, Inc.
Inventor： Apurv Bhartia , Lizhen Lin
Abstract: A method is performed by a first access point (AP) of a plurality of access points (APs). The first AP includes a non-transitory memory and one or more processors coupled with the non-transitory memory. In some implementations, the method includes determining traffic information for a first set of client devices that are being served by the first AP. In some implementations, the method includes obtaining traffic information for a second set of client devices that are being served by a second AP of the plurality of APs. In some implementations, the method includes synthesizing a unified traffic indicator map (TIM) based on the traffic information for the first set of client devices and the traffic information for the second set of client devices. In some implementations, the method includes transmitting the unified TIM to the plurality of APs. In some implementations, the unified TIM satisfies a network performance criterion.
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公开(公告)号：US20200145841A1
公开(公告)日：2020-05-07
申请号：US16177942
申请日：2018-11-01
Applicant: Cisco Technology, Inc.
Inventor： Apurv Bhartia , Lizhen Lin
Abstract: A method is performed by a first access point (AP) of a plurality of access points (APs). The first AP includes a non-transitory memory and one or more processors coupled with the non-transitory memory. In some implementations, the method includes determining traffic information for a first set of client devices that are being served by the first AP. In some implementations, the method includes obtaining traffic information for a second set of client devices that are being served by a second AP of the plurality of APs. In some implementations, the method includes synthesizing a unified traffic indicator map (TIM) based on the traffic information for the first set of client devices and the traffic information for the second set of client devices. In some implementations, the method includes transmitting the unified TIM to the plurality of APs. In some implementations, the unified TIM satisfies a network performance criterion.
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公开(公告)号：US20190320385A1
公开(公告)日：2019-10-17
申请号：US16120088
申请日：2018-08-31
Applicant: Cisco Technology, Inc.
Inventor： Apurv Bhartia , Simon Eric Miani Barber , Feng Wang , Derrick Lyndon Pallas
Abstract: A disclosed method is performed at an access point including a processor and non-transitory memory. The method includes receiving a request message from a client device, where the request message includes a request for an allocation of a wireless channel for the client device from the access point. The method further includes exchanging candidate and load information with a plurality of other access points. The method additionally includes selecting a preferred access point from the access point and the plurality of other access points based on the candidate and load information exchanged with the plurality of other access points. The method also includes facilitating the allocation of the wireless channel for the client device from the preferred access point.
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10.发明授权公开(公告)号：US10299167B2
公开(公告)日：2019-05-21
申请号：US15658197
申请日：2017-07-24
Applicant: Cisco Technology, Inc.
Inventor： Apurv Bhartia , Feng Wang , Derrick Pallas
IPC: H04W28/10 , H04L12/801 , H04W28/02 , H04W84/12
Abstract: Disclosed is a method includes treating, at an access point, a data flow between a first station and a second station during a first period of time as a non-fast flow. After a condition is met, the method includes marking the data flow as a fastACK flow during a second period of time and during the second period of time, storing data frames in the data flow at the access point to yield stored data frames. Next, the method includes generating a spoofed TCP acknowledgment signal on behalf of the first station and associated with the stored data frames and transmitting the spoofed TCP acknowledge signal to the second station.
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