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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：US20230114175A1
公开(公告)日：2023-04-13
申请号：US17846729
申请日：2022-06-22
Applicant: Cisco Technology, Inc.
Inventor： Irfan Ali , Ravi Shankar Mantha , Ravi Kiran Guntupalli , Jis Abraham
Abstract: A system is provided for supporting roaming between LTE EPC network and 5G network of a first mobile network operator by 5GC network of a second network operator. The system may include the EPC network including a serving gateway in communication with a 4G base station being in the EPC network. The system may also include the 5G network of the first mobile network operator including a vSMF in communication with a 5G base station being in the 5G network of the first network operator. The system may also include the 5GC network of the second network operator including a hSMF. The vSMF is configured to receive a communication from the serving gateway to anchor mobility between the LTE EPC network and the 5G network of the first mobile network operator, and to communicate with the hSMF in the 5GC network of the second network operator using 5G roaming interfaces.
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3.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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4.发明授权公开(公告)号：US10764742B1
公开(公告)日：2020-09-01
申请号：US16745695
申请日：2020-01-17
Applicant: Cisco Technology, Inc.
Inventor： Jis Abraham , Aditya Prakash , Vinod Suresh Kamble , Ameo Ghosh
Abstract: Fifth Generation (5G) standards specify use of a Subscription Concealed Identifier (SUCI) (i.e. a concealed identity) for a user equipment (UE) during initial registration, where the SUCI is derived from a Subscription Permanent Identifier (SUPI) of the UE. Given the identity concealment and use of different identities on different interfaces in a 5G network, maintaining subscriber state with a stateless network architecture may be challenging. Accordingly, one or more techniques and mechanisms are provided herein for subscriber management with a stateless network architecture in a 5G network, even without the need to maintain intermediate states of a UE in an external data store. The one or more techniques and mechanisms may be provided in relation to processing of Next Generation (NG) Application Protocol (NGAP) signaling messages at an access and mobility management function (AMF), and in particular, in relation to a registration procedure for the UE.
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5.发明授权公开(公告)号：US10582371B1
公开(公告)日：2020-03-03
申请号：US16536712
申请日：2019-08-09
Applicant: Cisco Technology, Inc.
Inventor： Jis Abraham , Aditya Prakash , Vinod Suresh Kamble , Ameo Ghosh
Abstract: Fifth Generation (5G) standards specify use of a Subscription Concealed Identifier (SUCI) (i.e. a concealed identity) for a user equipment (UE) during initial registration, where the SUCI is derived from a Subscription Permanent Identifier (SUPI) of the UE. Given the identity concealment and use of different identities on different interfaces in a 5G network, maintaining subscriber state with a stateless network architecture may be challenging. Accordingly, one or more techniques and mechanisms are provided herein for subscriber management with a stateless network architecture in a 5G network, even without the need to maintain intermediate states of a UE in an external data store. The one or more techniques and mechanisms may be provided in relation to processing of Next Generation (NG) Application Protocol (NGAP) signaling messages at an access and mobility management function (AMF), and in particular, in relation to a registration procedure for the UE.
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Patent Agency Ranking
公开(公告)号：US12256274B2
公开(公告)日：2025-03-18
申请号：US17846729
申请日：2022-06-22
Applicant: Cisco Technology, Inc.
Inventor： Irfan Ali , Ravi Shankar Mantha , Ravi Kiran Guntupalli , Jis Abraham
Abstract: A system is provided for supporting roaming between LTE EPC network and 5G network of a first mobile network operator by 5GC network of a second network operator. The system may include the EPC network including a serving gateway in communication with a 4G base station being in the EPC network. The system may also include the 5G network of the first mobile network operator including a vSMF in communication with a 5G base station being in the 5G network of the first network operator. The system may also include the 5GC network of the second network operator including a hSMF. The vSMF is configured to receive a communication from the serving gateway to anchor mobility between the LTE EPC network and the 5G network of the first mobile network operator, and to communicate with the hSMF in the 5GC network of the second network operator using 5G roaming interfaces.
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7.发明公开公开(公告)号：US20230269645A1
公开(公告)日：2023-08-24
申请号：US17675602
申请日：2022-02-18
Applicant: Cisco Technology, Inc.
Inventor： Jis Abraham , Pavan Kumar Devulacheruvu Nageswararao , Venkata Mohana Krishna Prasanna Anjaneyulu Pendela
CPC classification number: H04W36/18 , H04W36/0044 , H04W36/0066
Abstract: Disclosed are systems, apparatuses, methods, and computer-readable media to address bearer loss during inter-radio access technology (RAT) handovers. A method includes sending a create bearer request for establishing a service for the mobile device using a first connection; receiving a create bearer response message to setup a second connection for the mobile device to continue the service; and, in response to the create bearer response message, sending an update bearer request message to provide the mobile device with the QoS information associated with the second connection, the QoS information allowing the mobile device to verify an existing QoS flow to continue the service after the handover. In some cases, a user equipment (UE) may delete a mapping between a QoS information when a previous message does not include an evolved packet core (EPC) bearer indicator (EBI) that identifies QoS policies.
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公开(公告)号：US11622308B1
公开(公告)日：2023-04-04
申请号：US17379471
申请日：2021-07-19
Applicant: Cisco Technology, Inc.
Inventor： Jis Abraham , Somaraju Kaki
Abstract: Presented herein are efficient techniques through which a session management function (SMF) may obtain, from a user plane function (UPF), an error indication associated with a user equipment (UE) for which a handover has been initiated from a Fourth Generation (4G) network to a Fifth Generation (5G) network. The SMF function initiates a timer in response to receiving the error indication. The SMF function stops the timer and processes a request when the request is obtained before an expiration of the timer and processes the error indication when the request is not received before the expiration of the timer.
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公开(公告)号：US20240430767A1
公开(公告)日：2024-12-26
申请号：US18823876
申请日：2024-09-04
Applicant: Cisco Technology, Inc.
Inventor： Jis Abraham , Pavan Kumar Devulacheruvu Nageswararao , Venkata Mohana Krishna Prasanna Anjaneyulu Pendela
Abstract: Disclosed are systems, apparatuses, methods, and computer-readable media to address bearer loss during inter-radio access technology (RAT) handovers. A method includes sending a create bearer request for establishing a service for the mobile device using a first connection; receiving a create bearer response message to setup a second connection for the mobile device to continue the service; and, in response to the create bearer response message, sending an update bearer request message to provide the mobile device with the QoS information associated with the second connection, the QoS information allowing the mobile device to verify an existing QoS flow to continue the service after the handover. In some cases, a user equipment (UE) may delete a mapping between a QoS information when a previous message does not include an evolved packet core (EPC) bearer indicator (EBI) that identifies QoS policies.
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公开(公告)号：US12167289B2
公开(公告)日：2024-12-10
申请号：US17675602
申请日：2022-02-18
Applicant: Cisco Technology, Inc.
Inventor： Jis Abraham , Pavan Kumar Devulacheruvu Nageswararao , Venkata Mohana Krishna Prasanna Anjaneyulu Pendela
Abstract: Disclosed are systems, apparatuses, methods, and computer-readable media to address bearer loss during inter-radio access technology (RAT) handovers. A method includes sending a create bearer request for establishing a service for the mobile device using a first connection; receiving a create bearer response message to setup a second connection for the mobile device to continue the service; and, in response to the create bearer response message, sending an update bearer request message to provide the mobile device with the QoS information associated with the second connection, the QoS information allowing the mobile device to verify an existing QoS flow to continue the service after the handover. In some cases, a user equipment (UE) may delete a mapping between a QoS information when a previous message does not include an evolved packet core (EPC) bearer indicator (EBI) that identifies QoS policies.
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