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    Dynamic enablement of RLC mode based on UE RF conditions
    1.
    发明授权
    Dynamic enablement of RLC mode based on UE RF conditions 有权

    公开(公告)号：US11843971B2

    公开(公告)日：2023-12-12

    申请号：US17501987

    申请日：2021-10-14

    Applicant: Cisco Technology, Inc.

    Inventor： Vimal Srivastava ,  Sri Gundavelli ,  Abhishek Dhammawat

    IPC: H04W28/04 ,  H04W76/10 ,  H04L1/20 ,  H04W28/12 ,  H04W60/04

    CPC classification number: H04W28/04 ,  H04L1/203 ,  H04W28/12 ,  H04W60/04 ,  H04W76/10

    Abstract: A system and method for dynamic enablement of a RLC mode of a Data Radio Bearer (DRB) based on UE radiofrequency (RF) conditions. A threshold value for a network characteristic is provided to a gNodeB. Changes in the network characteristic correlates to changes in RF channel conditions of the UE. The trigger configures the gNodeB to identify when the network characteristic meets the threshold value for selectively controlling operation of the gNodeB at one of a plurality of different operation modes including an initial radio link control (RLC) mode based on the network characteristic. A Protocol Data Unit (PDU) session is established with the gNodeB operating in an initial RLC mode with the possibility to dynamically switch to a different RLC mode based on RF channel conditions.

    CONFIGURATION AND USE OF ALLOCATED BANDWIDTHS FOR PREDEFINED SERVICE CLASSIFICATIONS ASSOCIATED WITH PREDEFINED TYPES OF A COMMUNICATION RESOURCE AT A USER PLANE FUNCTION NODE
    3.
    发明申请
    CONFIGURATION AND USE OF ALLOCATED BANDWIDTHS FOR PREDEFINED SERVICE CLASSIFICATIONS ASSOCIATED WITH PREDEFINED TYPES OF A COMMUNICATION RESOURCE AT A USER PLANE FUNCTION NODE 有权

    公开(公告)号：US20220386179A1

    公开(公告)日：2022-12-01

    申请号：US17329863

    申请日：2021-05-25

    Applicant: Cisco Technology, Inc.

    Inventor： Abhishek Dhammawat ,  Srinath Gundavelli

    IPC: H04W28/24 ,  H04W28/20 ,  H04W28/02

    Abstract: In one illustrative example, a user plane function (UPF) node may receive, from a controller node, a configuration of an allocated bandwidth for a predefined service classification associated with different predefined types of a communication resource at the UPF node, for each one of a plurality of different predefined service classifications associated with different predefined types of the communication resource. The UPF node may monitor a total bandwidth usage for each predefined service classification. Based on identifying that the total bandwidth usage exceeds a threshold limit, the UPF node may send, to the controller node, a message which indicates a request for readjusting the allocated bandwidth for the predefined service classification, and indicating the total bandwidth usage. The different predefined types of the communication resource may be different network slices at the UPF node, or different Quality of Service (QoS) Flow resource types at the UPF node, as examples.

    Systems and methods for roaming management between access points
    4.
    发明授权
    Systems and methods for roaming management between access points 有权

    公开(公告)号：US11411942B1

    公开(公告)日：2022-08-09

    申请号：US16518144

    申请日：2019-07-22

    Applicant: Cisco Technology, Inc.

    Inventor： Abhishek Dhammawat ,  Mansi Jain ,  Sudhir Kumar Jain

    IPC: H04L29/06 ,  H04L9/40 ,  H04W8/24 ,  H04W12/06 ,  H04W12/041

    Abstract: Systems, methods, and computer-readable media are provided for an efficient roaming management method using a single association identifier token for associating with different access points. In one aspect of the present disclosure, a network controller includes memory having computer-readable instructions stored therein and one or more processors. The one or more processors are configured to execute the computer-readable instructions to receive a request from an endpoint to connect to a first access point; generate association identification token (e.g., PMK and PMKID) for the endpoint to connect to the first access point; and distribute the association identification token to a second access point prior to the endpoint attempting to connect to the second access point, the association identification token being used by the second access point to validate a subsequent request by the endpoint to connect to the second access point.

    System and method for providing error handling in an untrusted network environment
    8.
    发明授权
    System and method for providing error handling in an untrusted network environment 有权

    公开(公告)号：US09531756B2

    公开(公告)日：2016-12-27

    申请号：US14534385

    申请日：2014-11-06

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Abhishek Dhammawat

    IPC: G06F9/00 ,  H04L29/06 ,  H04W12/04 ,  H04W12/06

    CPC classification number: H04L63/20 ,  H04L63/061 ,  H04L63/0892 ,  H04W12/04 ,  H04W12/06 ,  H04W12/10

    Abstract: An example method is provided and may include receiving a DIAMETER-based error over an SWm interface by a first evolved packet data gateway (ePDG) for a user equipment (UE) attempting to connect to the first ePDG; determining an Internet Key Exchange version two (IKEv2) error type corresponding to the DIAMETER-based error; and communicating the IKEv2 error type to the UE over an SWu interface. In some cases, the IKEv2 error type can be included in a notify payload or in a vendor ID payload for an IKE authentication response (IKE_AUTH_RESP) message. By distinguishing the IKEv2 error type, the UE can determine whether the error is a temporary or a permanent type and can determine whether to attempt to connect again to the first ePDG after a period of time or attempt to connect to another ePDG, which can help to reduce unnecessary signaling and provide better connectivity and user experience.

    System and method for providing error handling in an untrusted network environment
    9.
    发明授权
    System and method for providing error handling in an untrusted network environment 有权
    在不可信网络环境中提供错误处理的系统和方法

    公开(公告)号：US09332015B1

    公开(公告)日：2016-05-03

    申请号：US14528920

    申请日：2014-10-30

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Abhishek Dhammawat

    IPC: H04L29/06

    CPC classification number: H04L63/20 ,  H04L63/061 ,  H04L63/0892 ,  H04W12/04 ,  H04W12/06 ,  H04W12/10

    Abstract: An example method is provided and may include receiving a DIAMETER-based error over an SWm interface by a first evolved packet data gateway (ePDG) for a user equipment (UE) attempting to connect to the first ePDG; determining an Internet Key Exchange version two (IKEv2) error type corresponding to the DIAMETER-based error; and communicating the IKEv2 error type to the UE over an SWu interface. In some cases, the IKEv2 error type can be included in a notify payload or in a vendor ID payload for an IKE authentication response (IKE_AUTH_RESP) message. By distinguishing the IKEv2 error type, the UE can determine whether the error is a temporary or a permanent type and can determine whether to attempt to connect again to the first ePDG after a period of time or attempt to connect to another ePDG, which can help to reduce unnecessary signaling and provide better connectivity and user experience.

    Abstract translation: 提供了示例性方法，并且可以包括：针对尝试连接到第一ePDG的用户设备（UE）的第一演进分组数据网关（ePDG）在SWm接口上接收基于DIAMETER的错误; 确定对应于基于DIAMETER的错误的Internet密钥交换版本二（IKEv2）错误类型; 并通过SWu接口将IKEv2错误类型传送给UE。 在某些情况下，IKEv2错误类型可以包含在通知有效载荷中或供应商ID有效载荷中用于IKE认证响应（IKE_AUTH_RESP）消息。 通过区分IKEv2错误类型，UE可以确定错误是临时还是永久类型，并且可以确定是否尝试在一段时间后再次连接到第一个ePDG，或尝试连接到另一个ePDG，这可以帮助 以减少不必要的信令并提供更好的连接和用户体验。

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