公开(公告)号：WO2021226635A1

公开(公告)日：2021-11-11

申请号：PCT/US2021/070516

申请日：2021-05-06

Applicant: CISCO TECHNOLOGY, INC.

Inventor： WANG, Huaiyi ,  HART, Brian D. ,  SILVERMAN, Matthew A. ,  GAO, Zhigang

IPC: H04L1/00

Abstract: Aspects described herein include a method comprising predicting, based on one or more transmission characteristics, error values for a sequence of bit positions used for modulating data within a packet. The method further comprises generating a bitmap that maps one or more payload bits and one or more padding bits of the packet to respective bit positions of the sequence. The one or more padding bits are preferentially mapped to respective bit positions having relatively greater error values. The method further comprises modulating the sequence according to the bitmap.

公开(公告)号：WO2021222011A1

公开(公告)日：2021-11-04

申请号：PCT/US2021/028790

申请日：2021-04-23

Applicant: CISCO TECHNOLOGY, INC.

Inventor： JAIN, Prakash C. ,  HOODA, Sanjay Kumar ,  KONDALAM, Satish ,  JANARDANAN, Raja ,  VADNERE, Aaditya ,  SHARMA, Shivangi

IPC: H04L12/46 ,  H04L12/715 ,  H04L12/741

Abstract: Systems, methods, and computer-readable media for communicating policy changes in a Locator/ID Separation Protocol (LISP) based network deployment include receiving, at a first routing device, a first notification from a map server, the first notification indicating a change in a policy for LISP based communication between at least a first endpoint device and at least a second endpoint device, the first endpoint device being connected to a network fabric through the first routing device and the second endpoint device being connected to the network fabric through a second routing device. The first routing device forwards a second notification to the second routing device if one or more entries of a first map cache implemented by the first routing device are affected by the policy change, the second notification indicating a set of one or more endpoints connected to the second routing device that are affected by the policy change.

公开(公告)号：WO2021221971A1

公开(公告)日：2021-11-04

申请号：PCT/US2021/028346

申请日：2021-04-21

Applicant: CISCO TECHNOLOGY, INC.

Inventor： GOERGEN, Joel ,  HURST, Kameron, Rose ,  SCHEELER, John, Scott ,  BHOBE, Alpesh, Umakant ,  WALKER, Dylan, Thomas ,  TONDRA, Aaron, P.

IPC: G01S7/41 ,  G06F3/01

Abstract: A system includes a millimeter (MM) wave radar detector, where the MM wave radar detector generates signal data associated with a person of interest (POI) within a field of view of the MM wave radar detector. The system further includes an Access Point (AP) coupled with the MM wave radar detector. The AP includes a computing device to receive and analyze the signal data provided by the MM wave radar detector to determine a movement or action of the POI within the field of view, and facilitate generation of a feedback response in response to the determined movement or action of the POI.

公开(公告)号：WO2021211312A1

公开(公告)日：2021-10-21

申请号：PCT/US2021/025700

申请日：2021-04-05

Applicant: CISCO TECHNOLOGY, INC.

Inventor： WENG, Wenwei ,  AVADHANAM, Nag ,  CHEN, Xiaoguang, Jason ,  ZHAO, Ning ,  STONE, Christopher, A.

IPC: G06F21/57 ,  G06F21/64 ,  H04L9/32 ,  G06F9/4401

Abstract: The present disclosure is directed to reducing the secure boot time of software images and includes one or more processors and one or more computer-readable non-transitory storage media coupled to the one or more processors and comprising instructions that, when executed by the one or more processors, cause one or more components to perform operations including identifying a software image for a first secure boot, the software image stored in a persistent storage and comprising a kickstart software package and a system software package, fetching the software image, including the kickstart software package and the system software package, from the persistent storage to a memory, verifying one or more digital signatures associated with the software image, booting the kickstart software package of the software image from the memory, and staging the system software package in the persistent storage.

公开(公告)号：WO2021207750A1

公开(公告)日：2021-10-14

申请号：PCT/US2021/070322

申请日：2021-03-26

Applicant: CISCO TECHNOLOGY, INC.

Inventor： KURYLAK, Alexander C. ,  LAKSHMIKUMAR, Kadaba

IPC: H03K3/356 ,  G11C7/06

Abstract: A flip-flop is provided that includes an input latch, configured to receive a data signal and a complement and produce set and reset pulses based on a clock and a difference between the data signal and the complement; and an output latch, configured to store a data value in a first memory and a complement data value in a second memory based on the set and reset pulses and the clock. Various buffers configured to invert and amplify the set and reset pulses before provision to the output latch stages are optionally disposed between the input and output latches. The input latch includes two signal arms, two difference transistors (one gate controlled by the clock and the other by a clock complement) coupled oppositely to one another (by respective drains and sources) to the signal arms, and two regeneration inverters coupled oppositely to one another to the signal arms.

公开(公告)号：WO2021202231A1

公开(公告)日：2021-10-07

申请号：PCT/US2021/024118

申请日：2021-03-25

Applicant: CISCO TECHNOLOGY, INC.

Inventor： GANDHI, Indermeet, Singh ,  GUNDAVELLI, Srinath

IPC: H04W12/041 ,  H04W12/0431 ,  H04W24/10 ,  H04W36/08 ,  H04B17/318 ,  H04W12/06 ,  H04W12/50 ,  H04W36/0058 ,  H04W36/00835 ,  H04W36/0085 ,  H04W36/14 ,  H04W8/24 ,  H04W84/12 ,  H04W88/06

Abstract: Presented herein are techniques to provide for the ability to optimize the caching of Fast Transition (FT) hierarchical keys based on a derived or statically defined neighbor relationship between wireless wide area (WWA) access network nodes and wireless local area (WLA) access network nodes and also user equipment (UE) mobility triggers in the WWA access network. In one example, a method may include instructing a UE to report detection of a WLA access network and based, at least in part, on obtaining a notification via a WWA access node indicating UE detection of the WLA access network, identifying WLA access nodes that neighbor the WWA access node. The method may further include generating FT key material for the UE and communicating a portion of the FT key material to the WLA access nodes that neighbor the WWA access node to facilitate authenticating the UE to the WLA access network.

公开(公告)号：WO2021194717A1

公开(公告)日：2021-09-30

申请号：PCT/US2021/020880

申请日：2021-03-04

Applicant: CISCO TECHNOLOGY, INC.

Inventor： DI PIETRO, Andrea ,  DASGUPTA, Sukrit

IPC: H04L12/24 ,  G06N20/00 ,  H04L41/145 ,  H04L41/16 ,  H04L43/16 ,  H04L67/10

Abstract: The present technology allows a hybrid approach to using artificial intelligence engines to perform issue generation, leveraging both on-premise and cloud components. In the technology, a cloud-based computing device receives data associated with a computing network of devices and uses machine- learning to create a model of the computing network. The cloud-based computing device communicates the model to a computing system located on-premise with the computing network and receives data related to the issues and insights created by the on-premise computing system. The cloud-based computing device determines if the on-premise computing system is producing issues and insights below a threshold quality. If yes, the cloud-based computing device updates the model based on updated data associated with the computing network and communicates the updated model to the on-premise computing system.

公开(公告)号：WO2021188303A1

公开(公告)日：2021-09-23

申请号：PCT/US2021/020876

申请日：2021-03-04

Applicant: CISCO TECHNOLOGY, INC.

Inventor： SHE, Huimin ,  ZHANG, Lele ,  GAO, Shiwei ,  CHEN, Xiaoguang, Jason ,  LI, Chuanwei

IPC: H04L12/751 ,  H04L12/721 ,  H04L12/733 ,  H04W40/08 ,  H04W40/20 ,  H04W40/24 ,  H04L12/715

Abstract: Techniques for utilizing Software-Defined Field- Area Network (SD-FAN) controllers to receive a geographic location and transmission power of individual nodes and generate a geographic location topology of a Field-Area Network (FAN) to provide nodes with location- aware route paths for data transmission. One or more SD-FAN controller(s) may maintain a geographic location database to store the geographic location and transmission power of the individual nodes. Each node may utilize a Destination Address Object to advertise its geographic location and transmission power to the SD-FAN controller. The SD-FAN controller(s) may utilize the geographic location table to generate the geographic location topology of the FAN and determine a location-aware route path for optimized data transmission between nodes in the FAN.

公开(公告)号：WO2021184039A1

公开(公告)日：2021-09-16

申请号：PCT/US2021/070254

申请日：2021-03-09

Applicant: CISCO TECHNOLOGY, INC.

Inventor： SMITH, Malcolm M. ,  ZHU, Xiaoqing ,  HENRY, Jerome

IPC: H04W24/10

Abstract: Techniques for determining a range between a wireless station (STA) and a wireless access point (AP) using channel state information are described. An AP determines channel state information corresponding to an STA. The AP determines, based on the channel state information, one or more fine timing measurement (FTM) parameters. A plurality of FTM messages are transmitted between the AP and the STA, based on the one or more FTM parameters. The STA is configured to determine an estimated range to the AP based on the plurality of FTM messages.

公开(公告)号：WO2021151118A1

公开(公告)日：2021-07-29

申请号：PCT/US2021/070069

申请日：2021-01-22

Applicant: CISCO TECHNOLOGY, INC.

Inventor： DESAI, Vishal S. ,  HENRY, Jerome ,  SILVERMAN, Matthew A. ,  BARTON, Robert E.

IPC: H04W74/08 ,  H04W24/02 ,  H04W28/0268 ,  H04W48/12 ,  H04W48/16 ,  H04W48/20 ,  H04W74/006 ,  H04W74/0825 ,  H04W84/12

Abstract: Embodiments herein describe techniques for conveying performance parameters to client devices using BSS coloring. IEEE 802.11 ax introduced BSS color to help with interference between BBSs operating in the same channel or partially overlapping channels in a frequency band. The BSS colors are typically assigned at random. However, in the embodiments herein, the BSS colors can still be relied to help with co-channel interference as intended by IEEE 802.11 ax but also can convey performance parameters to the client devices. The AP can leverage the BSS color to convey (or encode) a performance parameter such as radio frequency (RF) conditions, quality of service (QoS) conditions, or a policy of the network in response to expected (or future) conditions to receiving client devices.