公开(公告)号：US20230379690A1

公开(公告)日：2023-11-23

申请号：US17746895

申请日：2022-05-17

Applicant: Oracle International Corporation

Inventor： Yesh Goel ,  Sridhar Karuturi ,  Amarnath Jayaramachar ,  Doki Satish Kumar Patro

IPC: H04W8/18 ,  H04W8/20

CPC classification number: H04W8/183 ,  H04W8/20 ,  H04W84/042

Abstract: A method for facilitating processing of inter-public land mobile network (PLMN) messages relating to existing subscriptions includes receiving, at a first network function (NF) repository function (NRF), an inter-PLMN subscription creation request message for creating a subscription. The method further includes determining, by the first NRF, that the first NRF includes a resource for which the subscription is requested. The method further includes, in response to determining that the first NRF includes a resource for which the subscription is requested, generating, by the first NRF, a subscription creation response message indicating creation of the subscription. The first NRF includes, in the subscription creation response message, a hint indicating that the subscription is located on the first NRF and forwards the first NRF, the subscription creation response message towards a consumer NF.

公开(公告)号：US20230247430A1

公开(公告)日：2023-08-03

申请号：US17587669

申请日：2022-01-28

Applicant: Oracle International Corporation

Inventor： John Nirmal Mohan Raj ,  Yesh Goel

IPC: H04W12/122 ,  H04W12/06 ,  H04W12/72

CPC classification number: H04W12/122 ,  H04W12/06 ,  H04W12/72 ,  H04W84/042

Abstract: Methods, systems, and computer readable media for validating subscriber entities against spoofing attacks in a communications network are disclosed. One method includes receiving, by a proxy element, a subscriber authentication request message that is sent from an access and mobility management function (AMF) and is directed to a user data management (UDM) function in a home network, creating, by the proxy element, a record entry including a subscriber identifier and a public land mobile network (PLMN) identifier contained in the subscriber authentication request message, wherein the record entry is stored in an authentication registry database prior to forwarding the subscriber authentication request message to the UDM function. The method further includes receiving, by the proxy element, a subsequent update context request message from the AMF, updating the record entry to include an AMF identifier if the subscriber identifier and the PLMN identifier in the subsequent update context request message respectively match the subscriber identifier and the PLMN identifier in the record entry, and rejecting the subsequent update context request message if the subscriber identifier and the PLMN identifier in the subsequent update context request message fail to match the subscriber identifier and PLMN identifier in the record entry.

公开(公告)号：US11576072B2

公开(公告)日：2023-02-07

申请号：US17027633

申请日：2020-09-21

Applicant: Oracle International Corporation

Inventor： Yesh Goel

IPC: H04W28/02 ,  H04W28/08 ,  H04W8/08 ,  H04W48/16

Abstract: A method for distributing connections to mobility management node instances includes publishing IP addresses for receiving connection requests and ingress messages from RAN nodes. The method further includes maintaining connection loading measurements of the mobility management node instances, receiving a connection request message generated by a RAN node for initiating a connection with one of the mobility management node instances, applying a connection distribution algorithm to select a mobility management node instance to handle the connection request message, and creating an association between an IP address of the selected mobility management node instance and an IP address and port of the RAN node extracted from a source IP address and source port field of the connection request. The method further includes forwarding the connection request message to the selected mobility management node instance.

公开(公告)号：US20220394453A1

公开(公告)日：2022-12-08

申请号：US17468076

申请日：2021-09-07

Applicant: Oracle International Corporation

Inventor： Yesh Goel

IPC: H04W8/00 ,  H04W12/086 ,  H04L29/08

Abstract: A method for applying or overriding a preferred-locality attribute during network function (NF) discovery includes, at a service communications proxy (SCP) or security edge protection proxy (SEPP) including at least one processor, receiving, from an NF, an NF discovery request including a preferred-locality attribute or lacking a preferred-locality attribute. The method further includes selecting, by the SCP or SEPP, a value for the preferred-locality attribute for the NF discovery request. The method further includes inserting, by the SCP or SEPP, the value for the preferred-locality attribute into the NF discovery request. The method further includes transmitting, by the SCP or SEPP, the NF discovery request to a network function repository function (NRF).

公开(公告)号：US20200177508A1

公开(公告)日：2020-06-04

申请号：US16206592

申请日：2018-11-30

Applicant: Oracle International Corporation

Inventor： Vipin Kumar ,  Yesh Goel

IPC: H04L12/803 ,  H04M7/06 ,  H04L29/12 ,  H04L12/939

Abstract: A method for distributing Sigtran connections among signal transfer point (STP) message processors includes providing a connection load balancer as a front end to plural message processors of an STP. The method further includes publishing, by the connection load balancer, an Internet protocol (IP) address to SS7 peers. The method further includes initializing the message processors of the STP to listen on the IP address published by the connection load balancer. The method further includes receiving, at the connection load balancer, a Sigtran message addressed to the IP address. The method further includes determining, by the connection load balancer, whether the Sigtran message is an initial message for a Sigtran connection or a subsequent message for a Sigtran connection and whether the Sigtran connection has been assigned to one of the message processors. The method further includes forwarding the message to one of the message processors or dropping the message based on whether the message is an initial message or a subsequent message and based on whether the connection has been assigned to one of the message processors.