公开(公告)号：WO2021081245A1

公开(公告)日：2021-04-29

申请号：PCT/US2020/056915

申请日：2020-10-22

Applicant: CISCO TECHNOLOGY, INC.

Inventor： INDIRESAN, Atri ,  BROCKNERS, Frank ,  BHANDARI, Shwetha Subray

IPC: H04L12/46 ,  H04L12/701 ,  H04L29/08

Abstract: This disclosure describes various methods, systems, and devices related to identifying path changes of data flows in a network. An example method includes receiving, at a node, a packet including a first path signature. The method further includes generating a second path signature by inputting the first path signature and one or more node details into a hash function. The method includes replacing the first path signature with the second path signature in the packet. The packet including the second path signature is forwarded by the node.

公开(公告)号：WO2021080820A1

公开(公告)日：2021-04-29

申请号：PCT/US2020/055454

申请日：2020-10-14

Applicant: CISCO TECHNOLOGY, INC.

Inventor： MUKHERJEE, Subrata ,  ALI, Irfan

IPC: H04W36/00

Abstract: A method is provided for handling a voice call in a heterogeneous network environment by a wireless device. The method includes sending a registration request to a network node in a Next Generation (5G) network. The wireless device has an existing voice call on a different network in the heterogeneous network environment. The method further includes receiving a registration acceptance from the network node in the 5G network. The registration acceptance indicates that IMS voice services are supported, but existing voice calls are not supported. The method further includes determining to stop an attempt to move the existing voice call to the 5G network.

公开(公告)号：WO2021076414A1

公开(公告)日：2021-04-22

申请号：PCT/US2020/054986

申请日：2020-10-09

Applicant: CISCO TECHNOLOGY, INC.

Inventor： DE LA CRUZ, Sergio, Mena ,  GRANAI, Lorenzo ,  SMITH, Malcolm, Muir ,  HENRY, Jerome

IPC: H04L29/08 ,  H04L12/18 ,  H04W72/04 ,  H04L5/00 ,  H04W74/04 ,  H04W74/06

Abstract: Aspects herein generally relate to a system and/or a method for enforcing synchronization of WiFi users interacting with a common hierarchical multi- element VR/AR scene. The aspects can use Orthogonal Frequency Division Multiple Access (OFDMA) and trigger frames to synchronize parallel updates to different scene elements. Deep Packet Inspection (DPI) can be used to analyze standard VR/AR streaming formats to identify those VR scene elements that are to be synchronized. The result is a more immersive AR/VR experience for the users, who receive the same scene elements at the same time.

公开(公告)号：WO2021076413A1

公开(公告)日：2021-04-22

申请号：PCT/US2020/054984

申请日：2020-10-09

Applicant: CISCO TECHNOLOGY, INC.

Inventor： BARTON, Robert, E. ,  DESAI, Vishal, Satyendra ,  GANDHI, Indermeet, Singh ,  HENRY, Jerome

IPC: H04W72/08 ,  H04W84/12

Abstract: Systems and methods herein can synchronize 802.11ax Uplink (UL) and Downlink (DL) Orthogonal Frequency-Division Multiple Access (OFDMA) schedules between adjacent APs that have overlapping BSSs, which may not be solved by BSS coloring. The method includes several stages. First, the APs detect RF interference from APs with overlapping BSSs. Then, the APs conduct time synchronization between these APs. The various APs can then elect a master scheduler. The master scheduler creates and implements a master schedule between these APs to coordinate use of the radio resource.

公开(公告)号：WO2021071562A1

公开(公告)日：2021-04-15

申请号：PCT/US2020/038030

申请日：2020-06-17

Applicant: CISCO TECHNOLOGY, INC.

Inventor： ANDERSON, Blake, Harrell ,  MCGREW, David

IPC: H04L29/06 ,  H04W12/10 ,  H04L29/08

Abstract: In one embodiment, a device in a network intercepts traffic sent from a first endpoint destined for a second endpoint. The device sends a padding request to the second endpoint indicative of a number of padding bytes. The device receives a padding response from the second endpoint, after sending the padding request to the second endpoint. The device adjusts the intercepted traffic based on the received padding response. The device sends the adjusted traffic to the second endpoint.

公开(公告)号：WO2021067122A1

公开(公告)日：2021-04-08

申请号：PCT/US2020/052645

申请日：2020-09-25

Applicant: CISCO TECHNOLOGY, INC.

Inventor： CLAISE, Benoit ,  PIGNATARO, Carlos, M. ,  VYNCKE, Eric ,  CLARKE, Joseph, M. ,  JOVANOVIC, Mioljub ,  SINGH, Harjinder

IPC: H04L12/24

Abstract: A method is performed at one or more entities configured to configure and provide assurance for a service enabled on a network. The service is configured as a collection of subservices on network devices of the network. A definition of the service is decomposed into a sub service dependency graph that indicates the sub services and dependencies between the subservices that collectively implement the service. Based on the subservice dependency graph, the sub services are configured to record and report sub service metrics indicative of sub service health states of the sub services. The sub service metrics are obtained from the subservices, and the subservice health states of the subservices are determined based on the sub service metrics. A health state of the service is determined based on the subservice health states. One or more of the sub services are reconfigured based on the health state of the service.

公开(公告)号：WO2021067120A1

公开(公告)日：2021-04-08

申请号：PCT/US2020/052606

申请日：2020-09-25

Applicant: CISCO TECHNOLOGY, INC.

Inventor： LEE, Yiho ,  LING, Tao ,  TUMMIDI, Ravi, S. ,  WEBSTER, Mark, A.

IPC: G02B6/125 ,  G02B6/293 ,  G02F1/225 ,  G02B6/122 ,  G02B6/12

Abstract: An optical device is disclosed, including a phase delay, a first adiabatic coupler adapted to receive an input signal and adapted to be optically coupled to an input of the phase delay, and a second adiabatic coupler adapted to be optically coupled to an output of the phase delay. The second adiabatic coupler includes a first waveguide including a first portion optically coupled to the first output and including a first width, and a second waveguide including a second portion optically coupled to the second output and comprising a second width that is approximately equal to the first width.

公开(公告)号：WO2021061560A1

公开(公告)日：2021-04-01

申请号：PCT/US2020/051767

申请日：2020-09-21

Applicant: CISCO TECHNOLOGY, INC.

Inventor： RAZDAN, Sandeep ,  PATEL, Vipulkumar K. ,  PRASAD, Aparna R.

IPC: G02B6/42

Abstract: Photonic devices include a photonic assembly and a substrate coupled to the photonic assembly. The photonic assembly includes a photonic die and an optical device coupled to the photonic die with an adhesive to form an optical connection between the optical device and the photonic die. The photonic assembly is coupled to the photonic assembly by reflowing a plurality of solder connections at temperature that is less than a cure temperature of the adhesive.

公开(公告)号：WO2021050297A1

公开(公告)日：2021-03-18

申请号：PCT/US2020/048496

申请日：2020-08-28

Applicant: CISCO TECHNOLOGY, INC.

Inventor： SHERIFF, Akram ,  PATIL, Santosh Ramrao ,  PULARIKKAL, Gangadharan Byju ,  GRAYSON, Mark

IPC: H04W28/16 ,  H04W24/00 ,  H04W36/00 ,  H04W52/00 ,  H04W16/18

Abstract: Systems, methods, and computer-readable media for radio resource management in a Citizens Broadband Radio Service (CBRS) network include one or more CBRS devices (CBSDs) which can obtain a group type associated with the CBSDs and their associated Radio Environment Map (REM) reports of one or more frequency channels of the CBRS network. The group type and the REM reports may be provided to a Self-Organizing Network (SON) manager of the CBRS network, where the SON manager may determine and provide to the CBSDs, one or more of a channel utilization information, transmission power, or mobility load management information for the CBSD, based on the group type and the REM reports.

公开(公告)号：WO2021045895A1

公开(公告)日：2021-03-11

申请号：PCT/US2020/046676

申请日：2020-08-17

Applicant: CISCO TECHNOLOGY, INC.

Inventor： SUNDARARAJAN, Balaji ,  JABR, Khalil A. ,  OSWAL, Anand ,  AGARWAL, Vivek ,  BALASUBRAMANIAN, Chandramouli

IPC: H04L12/46 ,  H04L12/715 ,  H04L12/723 ,  H04L12/721

Abstract: Systems, methods, and computer-readable media for interconnecting SDWANs through segment routing. A first SDWAN and a second SDWAN of a SDWAN fabric can be identified. A segment routing domain that interconnects the first SDWAN and the second SDWAN can be formed across a WAN underlay of the SDWAN fabric. Data transmission between the first SDWAN and the second SDWAN can be controlled by performing segment routing through the segment routing domain formed between the first SDWAN and the second SDWAN.