公开(公告)号：US11425262B2

公开(公告)日：2022-08-23

申请号：US16774546

申请日：2020-01-28

Applicant: Cisco Technology, Inc.

Inventor： Somaraju Kaki ,  Ravi Sankar Mantha ,  Mukesh Yadav ,  Sandeep Dasgupta

IPC: H04M15/00 ,  H04W84/04

Abstract: A network element configured to support charging for a service in a network accesses policy rules defining a rating group to be used for offline charging. While a protocol data unit (PDU) session for user equipment is being established in the network, the network element sends, to a charging function configured to send charging data records related to service usage to a billing domain, a charging data request that establishes offline charging for the PDU session and indicates the rating group. The network element also receives, from the charging function, a charging data response including one or more triggers and thresholds for the rating group for the offline charging.

公开(公告)号：US11146412B2

公开(公告)日：2021-10-12

申请号：US16899253

申请日：2020-06-11

Applicant: Cisco Technology, Inc.

Inventor： Somaraju Kaki ,  Sandeep Dasgupta

IPC: H04W4/24 ,  H04L12/14 ,  H04L12/24 ,  H04L29/06

Abstract: Disclosed are technologies for optimally utilizing 5G-NSA network resources via an Aggregate Maximum Bitrate (AMBR) feedback mechanism. A User Equipment (UE) is registered with a 5G-NSA network environment and a 5G AMBR is negotiated. A bearer-specific timer is triggered in response to detecting one or more data flows to the UE. Next, a Secondary Radio Access Technology (RAT) Data Usage Report is monitored for. In response to the bearer-specific timer expiring without a Secondary RAT Data Usage Report being received, it is determined that the UE is not currently being served by a 5G RAT. Subsequently, local rate limiting is performed to reduce the negotiated 5G AMBR to a limited AMBR having a lower bitrate than the negotiated 5G AMBR. The UE connection to the 5G-NSA network environment is then configured with the limited AMBR.

公开(公告)号：US20210234965A1

公开(公告)日：2021-07-29

申请号：US16774546

申请日：2020-01-28

Applicant: Cisco Technology, Inc.

Inventor： Somaraju Kaki ,  Ravi Sankar Mantha ,  Mukesh Yadav ,  Sandeep Dasgupta

IPC: H04M15/00 ,  H04W84/04

Abstract: A network element configured to support charging for a service in a network accesses policy rules defining a rating group to be used for offline charging. While a protocol data unit (PDU) session for user equipment is being established in the network, the network element sends, to a charging function configured to send charging data records related to service usage to a billing domain, a charging data request that establishes offline charging for the PDU session and indicates the rating group. The network element also receives, from the charging function, a charging data response including one or more triggers and thresholds for the rating group for the offline charging.

公开(公告)号：US10827395B2

公开(公告)日：2020-11-03

申请号：US16134854

申请日：2018-09-18

Applicant: Cisco Technology, Inc.

Inventor： Sandeep Dasgupta ,  Mantha Ravi Sankar

IPC: H04W76/15 ,  H04W36/00 ,  H04W8/20 ,  H04W88/16

Abstract: One or more controllers of a control plane (CP) entity for use in a mobile network (e.g. a mobility management entity or “MME”) may be configured to receive or obtain an indication which indicates whether an eNodeB (eNB) is configured to support Dual Connectivity with New Radio (DCNR), for a 5G Non-Standalone (NSA) architecture deployment. The one or more controllers may be further configured to select, based on the indication, one of a plurality of serving gateways (SGWs) for a session of a user equipment (UE) served by the eNB. Additional information may be used as a basis for the SGW selection, including UE capability and UE subscription data. For example, when the indication indicates that the eNB is configured to support DCNR and the UE capability and subscription data indicate 5G capability, a 5G-capable SGW may be selected but otherwise a legacy (non-5G) SGW may be selected.

公开(公告)号：US20200296647A1

公开(公告)日：2020-09-17

申请号：US16887094

申请日：2020-05-29

Applicant: Cisco Technology, Inc.

Inventor： Somaraju Kaki ,  Sandeep Dasgupta

IPC: H04W36/14

Abstract: Systems, methods, and computer-readable media are provided for optimizing user plane node selection process during a process of handing over user equipment between two communication networks. In one aspect, a method includes receiving, at a network component, a session creation request for handing over the user equipment, the user equipment having a current active communication session within a first communication network with a first node of the first communication network, the session creation request including an identifier of the first node; receiving, at the network component, a list of candidates to serve as a user plane serving gateway for the user equipment in the second communication network; and selecting, by the network component and based on at least the identifier of the first node, the first node from the list of candidates to serve as the user plane serving gateway for the user equipment in the second communication network.

公开(公告)号：US11843978B2

公开(公告)日：2023-12-12

申请号：US17377716

申请日：2021-07-16

Applicant: Cisco Technology, Inc.

Inventor： Raghunadha Reddy Pocha ,  Mantha Ravi Shankar ,  Jis Abraham ,  Sandeep Dasgupta ,  Mukesh Yadav

IPC: H04W36/00 ,  H04W36/22 ,  H04W36/32

CPC classification number: H04W36/0022 ,  H04W36/0061 ,  H04W36/22 ,  H04W36/32

Abstract: The present technology is generally directed to optimizing a non-3GPP untrusted Wi-Fi to 5G system handover followed by Evolved Packet System (EPS) fallback, more specifically, to delaying removal of the Wi-Fi session resources and creating a voice flow as part of the EPS fallback. The present technology can receive a request for an EPS fallback from a mobile device for a handover to a 5G network while the mobile device is in communication over non-3GPP access network, maintain one or more resources of the non-3GPP access network during data path switching from the non-3GPP access network to the 5G network, generate a list of EPS bearer identifiers to transmit to an access and mobility management function (AMF), wherein the list of EPS bearer identifiers is associated with a voice flow to transfer the one or more resources of the non-3GPP access network as part of the handover from the non-3GPP access network to the 5G network, and transmit the list of EPS bearer identifiers to a mobility management entity (MME).

公开(公告)号：US11843512B2

公开(公告)日：2023-12-12

申请号：US17410105

申请日：2021-08-24

Applicant: Cisco Technology, Inc.

Inventor： Ravi Shankar Mantha ,  Sandeep Dasgupta ,  Mukesh Yadav

IPC: H04L41/12 ,  H04L67/141 ,  H04W84/04

CPC classification number: H04L41/12 ,  H04L67/141 ,  H04W84/042

Abstract: Presented herein are efficient techniques in which an application function (AF) session is established between a first policy control function (PCF) in a standalone non-public network (SNPN) domain and a second PCF in a Public Land Mobile Network (PLMN) domain, wherein a user equipment has a first session with the SNPN domain, the AF session is established for a second session of the user equipment with the PLMN domain, and the AF session is bound to the first session. The second PCF obtains an indication of a data flow initiated for the user equipment for the second session within the PLMN domain and determines flow information associated with the data flow. The second PCF transmits to the first PCF the flow information associated with the data flow for creating the data flow in the SNPN domain.

公开(公告)号：US20230014639A1

公开(公告)日：2023-01-19

申请号：US17377716

申请日：2021-07-16

Applicant: Cisco Technology, Inc.

Inventor： Raghunadha Reddy Pocha ,  Mantha Ravi Shankar ,  Jis Abraham ,  Sandeep Dasgupta ,  Mukesh Yadav

IPC: H04W36/00 ,  H04W36/32 ,  H04W36/22

Abstract: The present technology is generally directed to optimizing a non-3GPP untrusted Wi-Fi to 5G system handover followed by Evolved Packet System (EPS) fallback, more specifically, to delaying removal of the Wi-Fi session resources and creating a voice flow as part of the EPS fallback. The present technology can receive a request for an EPS fallback from a mobile device for a handover to a 5G network while the mobile device is in communication over non-3GPP access network, maintain one or more resources of the non-3GPP access network during data path switching from the non-3GPP access network to the 5G network, generate a list of EPS bearer identifiers to transmit to an access and mobility management function (AMF), wherein the list of EPS bearer identifiers is associated with a voice flow to transfer the one or more resources of the non-3GPP access network as part of the handover from the non-3GPP access network to the 5G network, and transmit the list of EPS bearer identifiers to a mobility management entity (MME).

公开(公告)号：US10750553B2

公开(公告)日：2020-08-18

申请号：US16140712

申请日：2018-09-25

Applicant: Cisco Technology, Inc.

Inventor： Mantha Ravi Sankar ,  Sandeep Dasgupta

IPC: H04W76/11 ,  H04W36/00 ,  H04L29/12 ,  H04W36/22

Abstract: A disclosed method is performed at a first node providing mobile services to a user equipment (UE) over an access network (AN). The first node receives a setup request from UE to be connected to a network over an AN. The first node then sends a fully qualified domain name (FQDN) of the first node over a first interface terminated by the first node to an access and mobility management function (AMF). The first node further triggers the AMF to transmit a session establishment request to a session management function (SMF) including the FQDN of the first node, where in response, the SMF selects second node(s) in the network collocated with the first node based at least in part on a topology match of FQDNs. The first node then provides UE access to the network over the AN through the collocated first node and the node(s).

公开(公告)号：US10735209B2

公开(公告)日：2020-08-04

申请号：US16058703

申请日：2018-08-08

Applicant: Cisco Technology, Inc.

Inventor： Somaraju Kaki ,  Sandeep Dasgupta

IPC: H04W4/24 ,  H04L12/14 ,  H04L12/24 ,  H04M15/00 ,  H04L29/06

Abstract: Disclosed are technologies for optimally utilizing 5G-NSA network resources via an Aggregate Maximum Bitrate (AMBR) feedback mechanism. A User Equipment (UE) is registered with a 5G-NSA network environment and a 5G AMBR is negotiated. A bearer-specific timer is triggered in response to detecting one or more data flows to the UE. Next, a Secondary Radio Access Technology (RAT) Data Usage Report is monitored for. In response to the bearer-specific timer expiring without a Secondary RAT Data Usage Report being received, it is determined that the UE is not currently being served by a 5G RAT. Subsequently, local rate limiting is performed to reduce the negotiated 5G AMBR to a limited AMBR having a lower bitrate than the negotiated 5G AMBR. The UE connection to the 5G-NSA network environment is then configured with the limited AMBR.