Verizon Patent and Licensing Inc.

Robert Avanes

Lalit R Kotecha

Sudhakar Reddy Patil

Violeta Cakulev

Hossein M Ahmadi

Vinod Kumar Choyi

Imtiyaz Shaikh

Maqbool Chauhan

Shanthala Kuravangi-Thammaiah

Carl T Leonard

Jodi A Kelm

Glenda T Baloto

Lixia Yan

Jerry Steben

Ali Imdad Malik

A network device may receive a context creation request based on a protocol data unit (PDU) session establishment request for establishing a PDU session with a user device, and may generate a policy context request based on receiving the context creation request. The network device may provide the policy context request to a policy control function (PCF), and may receive, from the PCF and based on the policy context request, policy rules for the PDU session. The network device may receive, from the PCF, a terminate PDU session notification indicating that a binding support function (BSF) is unreachable, and may generate, based on the terminate PDU session notification, a PDU session release command that includes a cause code indicating an issue with the BSF and an instruction to not reinitiate the PDU session. The network device may cause the PDU session release command to be provided to the user device.

Systems and methods for preventing user device pinging in asynchronous communication mode

In some implementations, a device of a network may receive, from a user equipment (UE), a request associated with enabling the UE to access a network, wherein the request includes a first routing indicator. The device may identify an authentication manager, of the network, that is mapped to the first routing indicator in an entry of a routing table of the network. The device may route the request to the authentication manager of the network to permit the authentication manager to authenticate the UE. The device may purge, based on the request being routed to the authentication manager, the entry to remove the first routing indicator from the routing table. The device may store, after purging the entry, a second routing indicator in the entry to map the second routing indicator to the authentication manager, wherein the second routing indicator is different from the first routing indicator.

Systems and methods for using a unique routing indicator to connect to a network

A network device may receive, from a CSCF device, a request for registration data associated with an IMS service, and may provide, to the CSCF device, the registration data associated with the IMS service. The network device may receive, from the CSCF device, a request for location data associated with the IMS service, and may provide, to the CSCF device, the location data associated with the IMS service. The network device may receive, from the CSCF device, a request for authentication data associated with the IMS service, and may provide, to the CSCF device, the authentication data associated with the IMS service. The network device may receive, from the CSCF device, a request for subscriber profile data associated with the IMS service, and may provide, to the CSCF device, the subscriber profile data associated with the IMS service.

Systems and methods for supporting internet protocol multimedia subsystem services in fifth-generation networks

Systems and methods described herein provide binding support function (BSF) service registration and discovery for environments using oversubscribed network addresses. A network device in a core network receives a registration request from a binding support device. The registration request includes a binding group identifier associated with the binding support device. The network device stores, based on the registration request, a profile for the binding support device that includes the binding group identifier and receives, from a policy control device, a discovery request for a that includes a unique identifier of user equipment (UE) device. The network device provides, to the policy control device, a response to the discovery request that identifies the binding support device.

BSF service registration and discovery enhancement

Examples described herein involve an internet protocol (IP) multimedia subsystem (IMS) network. An example process may include receiving, from a user equipment (UE), a request for an IMS session. The IMS session may be between the IMS network and the UE. The process may include requesting a subscriber management component to provide platform information associated with the IMS session. The platform information may identify a platform device that hosts a user plane function (UPF) for the IMS session. The process may include receiving, from the subscriber management component, the platform information and selecting, based on the platform information, a user plane component of the IMS network. The user plane component may perform a user plane operation associated with the IMS session. The process may include causing the user plane component to perform the user plane operation for the IMS session.

Systems and method for selection of a user plane component for internet protocol multimedia subsystem sessions

A roaming platform is disclosed herein. The roaming platform may receive, via a first communication protocol, an authentication request associated with a user equipment (UE), wherein the UE is subscribed to communicate via a first radio access technology of a home network, and wherein the authentication request is associated with enabling the UE to communicate via a visitor network that utilizes a second radio access technology. The roaming platform may identify an identifier associated with the UE in the authentication request. The roaming platform may determine, based on the identifier, a serving component of the home network that is configured to serve the UE. The roaming platform may obtain, from the serving component, authentication information associated with the UE, wherein the authentication information is obtained via a second communication protocol. The roaming platform may provide, based on the authentication information, an authentication response to the authentication request.

Authorization of roaming for new radio subscribers via an alternative radio access technology

A system includes one or more devices that include a memory to store instructions and one or more processors to execute the instructions. The devices include an updated network function (NF) service producer that includes a recent update, wherein the NF service producer is configured to register at a Network Repository Function (NRF) using a Network Function profile (NF profile), wherein the NF profile indicates a Network Function type (NF type) and Application Programming Interface versions. The devices further include a network function (NF) service consumer configured to: receive a message from a network component; determine to engage a service of a NF service producer of the NF type based on the message; and send a discovery request to the NRF in response to the message, wherein the message includes search criteria that specify a version field extended with an operator dependent version field.

Mechanisms for enabling negotiation of API versions and supported features

A computer device may include a memory storing instructions and processor configured to execute the instructions to receive a request associated with a subscriber, wherein the request includes information identifying whether the user is a Fifth Generation (5G) subscriber or information identifying a gateway device associated with the user. The computer device may be further configured to select a Fourth Generation (4G) Policy and Charging Rules Function (PCRF) device or a 5G Policy Control Function (PCF) device based on the information included in the received request and forward the received request to the selected 4G PCRF device or 5G PCF device.

Policy device selection by common IMS

A method, a device, and a non-transitory storage medium are described in which an multi-RAT voice management service is provided. The service includes transmitting data to a wireless station that indicates an end device capability for a voice service of a radio access technology of the wireless station. The data may be included in radio access technology frequency selection priority data. When a voice call is initiated, the wireless station may determine whether to invoke an inter-radio access technology fallback procedure based on the received data.

Method and system for end device management of voice over new radio and non-voice over new radio in multi-rat environment

Systems and methods described herein enable improve handling of 5G-enabled devices in 4G core networks. The systems and methods described herein provide an enhanced HTTP-based interface between a SMF/PGW-C and a UDM to support interactions required to: (a) perform authorization of PDN access for non-3GPP networks, (b) provide an APN profile to the SMF+PGW-C for the PDN being setup, (c) update the SMF+PGW-C address in the UDM for the PDN being served by non-3GPP networks, and (d) provide operator-specific subscriber parameters from the UDM to the SMF+PGW-C for 3GPP and non-3GPP access.

System and method for supporting 5G user devices in a legacy wireless core network

A computer device may include logic configured to receive a request from a user equipment device or a network device; identify a responding wireless access network device to process the request; and determine whether information identifying supported features for the responding wireless access network device has been obtained. The logic may be further configured to request a list of supported features from the responding wireless access network device, when the information identifying the supported features for the responding wireless access network device has not been obtained by the computer device; receive, from the responding wireless access network device, a response that includes the list of the supported features and that further includes supported features scope information; store the supported features scope information; and use the supported features scope information when forwarding requests to the responding wireless access network device or the plurality of devices.

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Roanoke, TX, United States of America

Robert Avanes