公开(公告)号：US20230362210A1

公开(公告)日：2023-11-09

申请号：US18353281

申请日：2023-07-17

Applicant: Cisco Technology, Inc.

Inventor： Vivek Agarwal ,  Rajaneesh Sudhakar Shetty ,  Raghavendra Suryanarayanarao Vidyashankar ,  Arun Gunasekaran ,  Filipe Alexandre Da Silva Rodrigues

IPC: H04L65/1016 ,  H04L65/1069 ,  H04L65/1073 ,  H04L65/1104

CPC classification number: H04L65/1016 ,  H04L65/1069 ,  H04L65/1073 ,  H04L65/1104

Abstract: Techniques and mechanisms for Fifth Generation (5G) system (5GS) failure detection monitoring of an application or control function in a network for efficient restoration of service are described. The network may be an Internet Protocol (IP) Multimedia Subsystem (IMS) network, and the voice or data service may be an IMS service that utilizes Session Initiation Protocol (SIP) signaling. The application or control function may be a Proxy-Call Session Control Function (P-CSCF) of the IMS network. In some implementations, the procedure may involve a session management function (SMF) programming of a user plane function (UPF) for UPF monitoring of the P-CSCF, using a ping procedure or health check procedure (e.g. for 3GPP Pre-Release 16). In other implementations, the procedure may involve the SMF monitoring of a P-CSCF via a Network Function (NF) Repository Function (NRF) (e.g. for 3GPP Release 16).

公开(公告)号：US12133159B2

公开(公告)日：2024-10-29

申请号：US17068031

申请日：2020-10-12

Applicant: Cisco Technology, Inc.

Inventor： Raghavendra Suryanarayanarao Vidyashankar ,  Santhosh Shenoy Panambur ,  Om Prakash Suthar

IPC: H04W48/08 ,  H04W4/24 ,  H04W36/00 ,  H04W36/14 ,  H04W48/18 ,  H04W88/16 ,  H04W92/02

CPC classification number: H04W48/08 ,  H04W4/24 ,  H04W36/0027 ,  H04W36/0066 ,  H04W36/14 ,  H04W48/18 ,  H04W88/16 ,  H04W92/02

Abstract: Techniques are provided to inform a mobile packet core of the access network/radio access technology (AN/RAT) change with the use of in-band signaling along the user plane and hence reduce signaling between radio access network and mobile packet core network. A new extension header content is defined to signal the AN/RAT change information, Cell Group changes and acknowledging the same. Further still, a method is provided to handle AN change notification for split bearer scenarios by introducing a split bearer flag for the mobile packet core to be notified of the predominant access type serving the subscriber data session in 5G Non-Stand Alone (NSA) Option-3, Option-3A and Option-3X, so that static or dynamic configurations can be applied by the mobile core network accordingly.

公开(公告)号：US20220312267A1

公开(公告)日：2022-09-29

申请号：US17839875

申请日：2022-06-14

Applicant: Cisco Technology, Inc.

Inventor： Bincy Baburaj Narath ,  Padmaraj Ramanoudjam ,  Arun Gunasekaran ,  Raghavendra Suryanarayanarao Vidyashankar ,  Om Prakash Suthar

IPC: H04W28/08 ,  H04W76/10 ,  H04W28/12

Abstract: When a packet data session is established for a user equipment (UE), a comparative assessment of load information factors from different sets of load information factors associated with a plurality of user plane function (UPF) instances may be performed. Each set of load information factors of a UPF instance may include predicted load information factors indicative of a predicted load at the UPF instance. A UPF instance may be selected for the packet data session of the UE based on the comparative assessment. The comparative assessment may additionally consider a predicted load contribution of the packet data session to be established for the UE. A data analytics function may utilize a model (e.g. a multiple linear regression model) to calculate predicted load contribution factors, where the model is derived based on historical usage data from previous sessions of one or more UEs, for example, data from charging data records (CDRs).

公开(公告)号：US20210337611A1

公开(公告)日：2021-10-28

申请号：US16859266

申请日：2020-04-27

Applicant: Cisco Technology, Inc.

Inventor： Aeneas Sean Dodd-Noble ,  Om Prakash Suthar ,  Raghavendra Suryanarayanarao Vidyashankar ,  Vivek Agarwal

IPC: H04W76/15 ,  H04W80/10 ,  H04W76/11 ,  H04W8/08 ,  H04W88/16

Abstract: In one example, a first connectivity request for a first network connection between a user equipment and a first network is obtained. A control plane serving gateway node for the first network connection is selected. The control plane serving gateway node is co-located with a control plane packet data network gateway node configured to support a second network connection between the user equipment and a second network that is different from the first network. A second connectivity request for the second network connection is obtained. The second network connection is established with the control plane serving gateway node and the control plane packet data network gateway node.

公开(公告)号：US11758436B2

公开(公告)日：2023-09-12

申请号：US17839875

申请日：2022-06-14

Applicant: Cisco Technology, Inc.

Inventor： Bincy Baburaj Narath ,  Padmaraj Ramanoudjam ,  Arun Gunasekaran ,  Raghavendra Suryanarayanarao Vidyashankar ,  Om Prakash Suthar

IPC: H04W76/10 ,  H04W28/08 ,  H04W28/12

CPC classification number: H04W28/08 ,  H04W28/12 ,  H04W76/10

Abstract: When a packet data session is established for a user equipment (UE), a comparative assessment of load information factors from different sets of load information factors associated with a plurality of user plane function (UPF) instances may be performed. Each set of load information factors of a UPF instance may include predicted load information factors indicative of a predicted load at the UPF instance. A UPF instance may be selected for the packet data session of the UE based on the comparative assessment. The comparative assessment may additionally consider a predicted load contribution of the packet data session to be established for the UE. A data analytics function may utilize a model (e.g. a multiple linear regression model) to calculate predicted load contribution factors, where the model is derived based on historical usage data from previous sessions of one or more UEs, for example, data from charging data records (CDRs).

公开(公告)号：US11469912B2

公开(公告)日：2022-10-11

申请号：US17062833

申请日：2020-10-05

Applicant: Cisco Technology, Inc.

Inventor： Arun Gunasekaran ,  Raghavendra Suryanarayanarao Vidyashankar ,  Om Prakash Suthar ,  Rajaneesh Sudhakar Shetty ,  Vivek Agarwal

IPC: H04L12/14 ,  H04W28/02 ,  H04L47/20 ,  H04W76/16 ,  H04W88/06 ,  H04W88/16

Abstract: Techniques are provided to communicate the serving Radio Access Network (RAN) element information to the packet core network to enable operators to provide differential treatment for fifth generation (5G) subscribers. The techniques presented herein fill these gaps and help drive faster adoption of Dual Connectivity New Radio (DCNR) subscribers by service operator to offer customized policy and quota management to address different business requirements in the 5G Non-Stand Alone (NSA) architecture.

公开(公告)号：US20220116854A1

公开(公告)日：2022-04-14

申请号：US17068031

申请日：2020-10-12

Applicant: Cisco Technology, Inc.

Inventor： Raghavendra Suryanarayanarao Vidyashankar ,  Santhosh Shenoy Panambur ,  Om Prakash Suthar

IPC: H04W48/08 ,  H04W48/18 ,  H04W36/00 ,  H04W36/14 ,  H04W4/24 ,  H04W88/16

Abstract: Techniques are provided to inform a mobile packet core of the access network/radio access technology (AN/RAT) change with the use of in-band signaling along the user plane and hence reduce signaling between radio access network and mobile packet core network. A new extension header content is defined to signal the AN/RAT change information, Cell Group changes and acknowledging the same. Further still, a method is provided to handle AN change notification for split bearer scenarios by introducing a split bearer flag for the mobile packet core to be notified of the predominant access type serving the subscriber data session in 5G Non-Stand Alone (NSA) Option-3, Option-3A and Option-3X, so that static or dynamic configurations can be applied by the mobile core network accordingly.

公开(公告)号：US20210258846A1

公开(公告)日：2021-08-19

申请号：US16790078

申请日：2020-02-13

Applicant: Cisco Technology, Inc.

Inventor： Om Prakash Suthar ,  Ryo Watanabe ,  Aeneas Sean Dodd-Noble ,  Raghavendra Suryanarayanarao Vidyashankar ,  Vivek Agarwal

IPC: H04W36/12

Abstract: In one example, an indication that a user equipment participating in a Packet Data Network (PDN) session hosted by a Serving Gateway (SGW) and a PDN Gateway (PGW) is transitioning from a first Mobility Management Entity (MME) to a second MME is obtained. An indication that the SGW is co-located with the PGW and an identification of the SGW are obtained. Based on the indication that the SGW is co-located with the PGW and the identification of the SGW, it is determined that the SGW is reachable from the second MME. In response to determining that the SGW is reachable from the second MME, the SGW is selected to host the PDN session after the user equipment transitions from the first MME to the second MME.

公开(公告)号：US11792236B2

公开(公告)日：2023-10-17

申请号：US17153416

申请日：2021-01-20

Applicant: Cisco Technology, Inc.

Inventor： Vivek Agarwal ,  Rajaneesh Sudhakar Shetty ,  Raghavendra Suryanarayanarao Vidyashankar ,  Arun Gunasekaran ,  Filipe Alexandre Da Silva Rodrigues

IPC: H04L65/1016 ,  H04L65/1069 ,  H04L65/1073 ,  H04L65/1104

CPC classification number: H04L65/1016 ,  H04L65/1069 ,  H04L65/1073 ,  H04L65/1104

Abstract: Techniques and mechanisms for Fifth Generation (5G) system (5GS) failure detection monitoring of an application or control function in a network for efficient restoration of service are described. The network may be an Internet Protocol (IP) Multimedia Subsystem (IMS) network, and the voice or data service may be an IMS service that utilizes Session Initiation Protocol (SIP) signaling. The application or control function may be a Proxy-Call Session Control Function (P-CSCF) of the IMS network. In some implementations, the procedure may involve a session management function (SMF) programming of a user plane function (UPF) for UPF monitoring of the P-CSCF, using a ping procedure or health check procedure (e.g. for 3GPP Pre-Release 16). In other implementations, the procedure may involve the SMF monitoring of a P-CSCF via a Network Function (NF) Repository Function (NRF) (e.g. for 3GPP Release 16).

公开(公告)号：US20220232046A1

公开(公告)日：2022-07-21

申请号：US17153416

申请日：2021-01-20

Applicant: Cisco Technology, Inc.

Inventor： Vivek Agarwal ,  Rajaneesh Sudhakar Shetty ,  Raghavendra Suryanarayanarao Vidyashankar ,  Arun Gunasekaran ,  Filipe Alexandre Da Silva Rodrigues

IPC: H04L29/06

Abstract: Techniques and mechanisms for Fifth Generation (5G) system (5GS) failure detection monitoring of an application or control function in a network for efficient restoration of service are described. The network may be an Internet Protocol (IP) Multimedia Subsystem (IMS) network, and the voice or data service may be an IMS service that utilizes Session Initiation Protocol (SIP) signaling. The application or control function may be a Proxy-Call Session Control Function (P-CSCF) of the IMS network. In some implementations, the procedure may involve a session management function (SMF) programming of a user plane function (UPF) for UPF monitoring of the P-CSCF, using a ping procedure or health check procedure (e.g. for 3GPP Pre-Release 16). In other implementations, the procedure may involve the SMF monitoring of a P-CSCF via a Network Function (NF) Repository Function (NRF) (e.g. for 3GPP Release 16).