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1.发明公开公开(公告)号：US20240098580A1
公开(公告)日：2024-03-21
申请号：US18518145
申请日：2023-11-22
Applicant: Cisco Technology, Inc.
Inventor： Raghunadha Reddy Pocha , Mantha Ravi Shankar , Jis Abraham , Sandeep Dasgupta , Mukesh Yadav
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).
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公开(公告)号：US20230134856A1
公开(公告)日：2023-05-04
申请号：US17512851
申请日：2021-10-28
Applicant: Cisco Technology, Inc.
Inventor： Ravi Sankar Mantha , Sandeep Dasgupta , Sateesh Reddy Mommidi
Abstract: Presented herein is a method that may include obtaining, by a session management node associated with a data session of a user equipment, an indication that an error has occurred at an endpoint of a first tunnel of the data session for the user equipment, the data session having a plurality of flows associated with the first tunnel and a second tunnel; transmitting, to an access and mobility management function (AMF), a request to modify resources for a first plurality of flows associated with the first tunnel; obtaining, from the AMF, a response including an indication of a new tunnel assigned to the first plurality of flows; and transmitting a request to a user plane function (UPF) including an identifier associated with the new tunnel for the first plurality of flows to facilitate transmitting data associated with the first plurality of flows over the new tunnel.
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3.发明授权公开(公告)号：US11412431B2
公开(公告)日：2022-08-09
申请号：US16887094
申请日：2020-05-29
Applicant: Cisco Technology, Inc.
Inventor： Somaraju Kaki , Sandeep Dasgupta
IPC: H04W36/14 , H04L61/4511 , H04W36/00 , H04W36/16 , H04W88/16 , H04W76/22 , H04W76/12 , H04W88/06 , H04W76/15
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.
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公开(公告)号：US11076321B2
公开(公告)日：2021-07-27
申请号：US16158119
申请日：2018-10-11
Applicant: Cisco Technology, Inc.
Inventor： Raghavendra Narayanappa , Sandeep Dasgupta
Abstract: In one embodiment, a method is performed. A mobility management entity (MME) may determine a network capability. The MME may query a domain name server (DNS) for a plurality of candidate MMEs having the network capability. The MME may select a target MME from the plurality of candidate MMEs.
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公开(公告)号：US20170111826A1
公开(公告)日：2017-04-20
申请号：US14885273
申请日：2015-10-16
Applicant: Cisco Technology, Inc.
Inventor： Mantha Ravi Sankar , Sandeep Dasgupta
CPC classification number: H04W28/20 , H04W28/24 , H04W40/12 , H04W72/0413 , H04W72/042 , H04W84/12
Abstract: Techniques are presented that ensure Quality of Service (QoS) for Wi-Fi® calling and other Internet Media Services (IMS) when a user connects from a carrier-operated public Wi-Fi network to an IMS. A first packet including a domain name system (DNS) request received from a wireless mobile device via an access point is intercepted at a networking device. A network address of a collocated gateway device associated with the networking device is sent to the wireless mobile device in response to the DNS request. A second packet is received from the wireless mobile device including the network address of the collocated gateway to establish a network communication via the collocated gateway device. First QoS parameters associated with the network communication are received from the collocated gateway device and a notification message is sent to the access point, the notification message including the first QoS parameters.
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Patent Agency Ranking
公开(公告)号：US12250597B2
公开(公告)日：2025-03-11
申请号：US18518145
申请日：2023-11-22
Applicant: Cisco Technology, Inc.
Inventor： Raghunadha Reddy Pocha , Mantha Ravi Shankar , Jis Abraham , Sandeep Dasgupta , Mukesh Yadav
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).
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公开(公告)号：US20230065081A1
公开(公告)日：2023-03-02
申请号：US17410105
申请日：2021-08-24
Applicant: Cisco Technology, Inc.
Inventor： Ravi Shankar Mantha , Sandeep Dasgupta , Mukesh Yadav
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.
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8.发明授权公开(公告)号：US11539538B1
公开(公告)日：2022-12-27
申请号：US17383990
申请日：2021-07-23
Applicant: Cisco Technology, Inc.
Inventor： Mukesh Yadav , Ravi Shankar Mantha , Sandeep Dasgupta
Abstract: Systems and methods are provided for utilizing an asynchronous report feature when a time or volume reporting trigger is unavailable. The systems and method can include receiving node level capabilities from at least one of a plurality of user plane functions, receiving an asynchronous report from the at least one of the plurality of user plane functions, determining an absence of a reporting trigger based on charging information associated with a policy control function and trigger information associated with a charging function, selecting a user plane function from the plurality of user plane functions based on the asynchronous report, and generating a usage reporting rule without the reporting trigger to be provided to the user plane function from the plurality of user plane functions.
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公开(公告)号：US20210184874A1
公开(公告)日：2021-06-17
申请号：US16899253
申请日：2020-06-11
Applicant: Cisco Technology, Inc.
Inventor： Somaraju Kaki , Sandeep Dasgupta
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.
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公开(公告)号：US11800578B2
公开(公告)日：2023-10-24
申请号：US17512851
申请日：2021-10-28
Applicant: Cisco Technology, Inc.
Inventor： Ravi Sankar Mantha , Sandeep Dasgupta , Sateesh Reddy Mommidi
Abstract: Presented herein is a method that may include obtaining, by a session management node associated with a data session of a user equipment, an indication that an error has occurred at an endpoint of a first tunnel of the data session for the user equipment, the data session having a plurality of flows associated with the first tunnel and a second tunnel; transmitting, to an access and mobility management function (AMF), a request to modify resources for a first plurality of flows associated with the first tunnel; obtaining, from the AMF, a response including an indication of a new tunnel assigned to the first plurality of flows; and transmitting a request to a user plane function (UPF) including an identifier associated with the new tunnel for the first plurality of flows to facilitate transmitting data associated with the first plurality of flows over the new tunnel.
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