T-mobile Usa, Inc.

Jhon Nelson Sihotang

Khurram Ahmad Mirza

A system includes a session border controller (SBC) coupled to an internet protocol (IP) multimedia core subsystem (IMS) of a telecommunications network. The SBC obtains information indicative of a roaming profile of a particular subscriber associated with the telecommunications network. The roaming profile indicates geographic areas in which the particular subscriber is authorized to access a communications service. The SBC receives a request to connect a particular voice call over a Wi-Fi network from a wireless device on the telecommunications network. The wireless device is associated with the particular subscriber to the telecommunications network. The SBC identifies a current location of the wireless device and compares the current location of the wireless device with geographic areas in which the particular subscriber is authorized to access the communications service. The SBC can then enable or deny the IMS to establish a session for the particular voice call over the Wi-Fi network.

Selectively restricting Wi-Fi calls supported by telecommunications network

A system and method may improve latency for user equipment (UE) registration in cellular networks. UE registration may retrieve the UE's configuration and subscription data locally rather than from a network or cloud-based unified data management (UDM) entity that manages a unified data repository (UDR). For example, the UE may send a unique identification (e.g., a UE ID) for the UE to a registering entity of a cellular network system. The UE ID may then be used to identify a UE Group Identification for the UE at the UDM. The UE Group Identification may be a pointer to the locally-stored configuration and subscription data for the UE. The entity requesting registration may then use the pointer to retrieve the configuration and subscription data locally rather than a remote entity such as the UDM.

Access and mobility function (AMF) data storage in cellular network registration

A system and method may improve latency for user equipment (UE) registration in cellular networks. UE registration may retrieve the UE's Session Management Function Data locally rather than from a network or cloud-based unified data management (UDM) entity that manages a unified data repository (UDR). For example, the UE may send a unique identification (e.g., a UE ID) for the UE to a registering entity of a cellular network system. The UE ID may then be used to identify a UE Group Identification for the UE at the UDM. The UE Group Identification may be a pointer to the locally-stored Session Management Function Data for the UE. The entity requesting registration may then use the pointer to retrieve the Session Management Function Data locally rather than a remote entity such as the UDM.

Growing community of inventors

Renton, WA, United States of America

Jhon Nelson Sihotang