Abstract: Various embodiments of the present technology generally relate to systems and methods for providing an inter-domain engine for masking communications exchanged between a visitor network and a home network. In an aspect, the inter-domain engine may be part of a home network and determine a service request from a visitor consumer NF. Based on the service request, the inter-domain engine may determine a service response containing NF topology information for furnishing the service request within the home network. Responsive to determining the service response, the inter-domain engine may generate a mask NF profile based on the service response and generate a mask service response based on the mask NF profile and the service request. Once generated, the inter-domain engine may provide the mask service response to the visitor network.

Abstract: Various embodiments of the present technology generally relate to systems and methods for controlling data network name (DNN) or access point name (APN) replacement for roaming mobile subscribers at the home network. A home network system may modify a message, from a visited network regarding a roaming user equipment (UE) associated with the home network system, to include a local data network identifier value compatible with the home network system, and process the message based on the local data network identifier value.

Abstract: Various embodiments of the present technology generally relate to systems and methods for validating 5G sessions at a binding support function (BSF) based on subscription-based notifications. In certain embodiments, a BSF system may comprise one or more processors, and a memory having stored thereon instructions that, when executed, cause the one or more processors to create a binding record associated with a 5G communication session, receive a subscription request from a Policy Control Function (PCF) for a session revalidation event associated with the 5G communication session, and initiate a revalidation timer based on the subscription request. The BSF system may send a notification request to the PCF based on the revalidation timer expiring, and delete the binding record based on a response to the notification request.

Abstract: Various embodiments of the present technology generally relate to systems and methods for validating 5G sessions by providing periodic updates from a policy control function (PCF) to a binding support function (BSF). In certain embodiments, a PCF system may comprise one or more processors, and a memory having stored thereon instructions. The instructions, upon execution, may cause the one or more processors to send a binding record request to a Binding Support Function (BSF) for a 5G communication session associated with the PCF, receive a binding record confirmation with a selected revalidation time value that indicates when the 5G communication session will be considered invalid and a binding record associated with the 5G communication session will be deleted, and prior to an expiration of the selected revalidation time value, send a binding record update request to the BSF to refresh the selected revalidation time value.

Abstract: Various embodiments of the present technology generally relate to systems and methods for controlling data network name (DNN) or access point name (APN) replacement for roaming mobile subscribers at the home network. A security edge protection proxy (SEPP) system may receive a request from a visited network regarding a roaming user equipment (UE) associated with a home network of the SEPP system, determine a local data network name (DNN) compatible with the home network to associate with the UE, add the local DNN to the request, and forward the request to a destination within the home network.

Abstract: Various embodiments of the present technology generally relate to systems and methods for remote mobile network capability sharing, and delegation of service discovery and selection to the remote mobile network, such as from a visited or roaming network to a home network. A first public land mobile network (PLMN) system may send, via a local network repository function (NRF), a request for capability details of a second PLMN, the capability details including an ability of the second PLMN to handle delegated service discovery and selection. The first PLMN may receive the capability details, and send, from the first PLMN to the second PLMN, a delegated discovery and network function (NF) selection request directing a service communications proxy (SCP) of the second PLMN to determine a producer NF of the second PLMN to process a service request from a consumer NF of the first PLMN.

Abstract: Various embodiments of the present technology generally relate to systems and methods for controlling data network name (DNN) or access point name (APN) replacement for roaming mobile subscribers at the home network. A security edge protection proxy (SEPP) system may receive a request from a visited network regarding a roaming user equipment (UE) associated with a home network of the SEPP system, determine a local data network name (DNN) compatible with the home network to associate with the UE, add the local DNN to the request, and forward the request to a destination within the home network.

Abstract: Methods, systems, and computer readable media for distributing policy rules from a data content network to user equipment in a mobile network are disclosed. In one example, the method includes obtaining, by a mobile offload gateway (MOG) located in a core data content network, at least one mobile policy rule associated with a mobile subscriber. The method further includes transmitting, from the MOG, the at least one mobile policy rule to a user equipment (UE) located outside of the core data content network, wherein the UE is associated with the mobile subscriber and configuring the UE to function in accordance to the at least one mobile policy rule.

Abstract: Methods, systems, and computer readable media for communicating RAN congestion status information for large numbers of users are disclosed. In one example, a method for communicating RAN congestion status information for a large number of users includes steps performed PCRF including one or more processors. The method further includes receiving a user-specific message from an RCAF. The method further includes determining that the user-specific message indicates that one or more eNodeBs monitored by the RCAF is congested for a plurality of users using the one or more eNodeBs for radio access to a telecommunications network. The method further includes, in response to determining that the user-specific message indicates that the one or more eNodeBs are congested, performing one or more actions to mitigate the congestion.

Abstract: Systems, methods, and computer readable media for policy enforcement correlation are disclosed. According to one aspect, a method for policy enforcement correlation includes, at a policy and charging rules function (PCRF) node: receiving, from a first network node, first policy and charging related information associated with a first user of a telecommunication network; receiving, from a second network node, second policy and charging related information; correlating the first and second policy and charging related information; and, in response to correlating the first and second policy and charging information, issuing a policy and charging control (PCC)-related instruction. In one embodiment, the PCC-related instruction may be sent to the first network node, the second network node, a third network node, or some combination of the above.

Abstract: According to one aspect, the subject matter described herein includes a method for initiating a session. The method includes steps occurring at a policy and charging rules function (PCRF) node. The method also includes determining, independent of contact from a service node, that the service node requires policy information. The method further includes in response to determining that the service node requires policy information, communicating a session independent trigger message to the service node, wherein the trigger message comprises information instructing the service node to initiate a session with the PCRF node to obtain the policy information from the PCRF node.

Abstract: Methods, systems, and computer readable media for access network discovery and selection are disclosed. According to one aspect, a system for access network discovery and selection includes an access network discovery and selection function (ANDSF) network element for identifying to a user equipment (UE) an access network through which the UE can connect to a core network, the ANDSF including an interface for communicating with nodes in a core network. The ANDSF is configured to receive information from a node in the core network and perform an access network discovery or selection operation based at least in part on the received information.

Abstract: Methods, systems, and computer readable media for communicating RAN congestion status information for large numbers of users are disclosed. In one example, a method for communicating RAN congestion status information for a large number of users includes steps performed PCRF including one or more processors. The method further includes receiving a user-specific message from an RCAF. The method further includes determining that the user-specific message indicates that one or more eNodeBs monitored by the RCAF is congested for a plurality of users using the one or more eNodeBs for radio access to a telecommunications network. The method further includes, in response to determining that the user-specific message indicates that the one or more eNodeBs are congested, performing one or more actions to mitigate the congestion.

Abstract: Methods, systems, and computer readable media for detecting a service data flow using a Gx rule are disclosed. According to one method, a policy and charging rules function (PCRF) node sends to a policy and charging enforcement function (PCEF) node, a Gx rule for triggering the PCEF node to generate a notification message upon initiation of a service data flow. The PCEF node receives and installs the Gx rule and uses the Gx rule to detect and report initiation of a service data flow.

Abstract: Methods, systems, and computer readable media for performing PCRF-based IP CAN session information pass-through are disclosed. According to one method, a policy and charging rules function (PCRF) receives Internet protocol connectivity access network (IP CAN) session information from an access network-aware gateway. The PCRF forwards at least a portion of the IP CAN session information to a deep packet inspection (DPI) node.

Abstract: A Diameter based network that includes nodes and accommodates Diameter communication sessions between nodes establishes a first Diameter communication session between a first node and a second node, and at some point determines that the first Diameter communication session is lost. The first node generates a query using a second Diameter communication session that is a different session than the first Diameter communication session. The first node transmits the query to the second node, where the query includes a session type and key identifiers for the first Diameter communication session. The second node re-establishes the first Diameter communication session with the first node and transmits, in response to the query, an indication that the first Diameter communication session exists.

Abstract: Methods, systems, and computer readable media for steering a subscriber between access networks are disclosed. According to one aspect, a method for steering a subscriber between access networks includes, at a first policy and charging rules function (PCRF) that serves a first access network, identifying a subscriber of the first access network as a candidate for steering to a second access network that is served by a second PCRF, querying the second PCRF to determine whether the candidate subscriber is allowed access to the second access network, and, upon a determination that the candidate subscriber is allowed access to the second access network, steering the candidate subscriber to the second access network.

Abstract: A policy and charging rules function (PCRF), generates a Diameter audit message concerning an application level Diameter session for which local resources are maintained by the PCRF. The PCRF includes, in the audit message, a fake parameter value. The PCRF sends the audit message with the fake parameter value to the OCS or the AF over an Sy or Rx interface. The PCRF receives a response to the audit message from the OCS or AF. The PCRF determines, based on the response, whether the application level session comprises and orphan session. The PCRF, in response to determining that the application level Diameter session comprises an orphan session frees the local resources maintained by the PCRF for the orphan session.

Abstract: According to one aspect, the subject matter described herein includes a method for communicating service data flow (SDF) event information. The method includes steps occurring at a policy and charging rules function (PCRF) node. The method also includes communicating, via an Rx interface, a request to a deep packet inspection (DPI) node to be notified when an SDF event occurs. The method further includes receiving notification from the DPI node that the SDF event has occurred.

Abstract: A Diameter based network that includes nodes and accommodates Diameter communication sessions between nodes establishes a first Diameter communication session between a first node and a second node, and at some point determines that the first Diameter communication session is lost. The first node generates a query using a second Diameter communication session that is a different session than the first Diameter communication session. The first node transmits the query to the second node, where the query includes a session type and key identifiers for the first Diameter communication session. The second node re-establishes the first Diameter communication session with the first node and transmits, in response to the query, an indication that the first Diameter communication session exists.