Abstract: A service-based architecture (SBA) IP Multimedia Network Subsystem (IMS) network exposes Network Functions (NFs) to nodes within a 5G core network (CN), nodes within the SBA IMS network, and/or nodes within another network. In contrast to the SBA IMS network, legacy IMS networks are non-SBA IMS stateful networks that may utilize the Session Initiation Protocol (SIP). Utilizing the SBA IMS network, a node in the 5G core network can communicate directly with any node in the SBA IMS network. The SBA IMS network is stateless and open as opposed to stateful and closed as in SIP based legacy IMS networks. In some configurations, the SBA IMS network utilizes a HyperText Transfer Protocol (HTTP). For instance, instead of using the application layer SIP protocol, techniques can include using HTTP. The SBA IMS may also connect to legacy SIP IMS networks.

Abstract: The systems, devices, and methods discussed herein are directed to a Wi-Fi calling (WFC) portable communication device, or a user equipment (UE), for providing a location information during a registration with a wireless local area network (WLAN). During a registration with a WLAN, the WFC UE may send a request for obtaining a public Internet Protocol (IP) address information of the WLAN, which includes location information of the WLAN, and use the public IP address of the WLAN as the assigned IP address of the WFC UE to register with the WLAN.

Abstract: Systems and methods for modifying a challenge requirement for user equipment registrations are described herein. The systems and methods enable a registrar of a network to modify a user equipment to reconfigure the user equipment to perform an initial registration, whereby the user equipment waits for a challenge from the network, rather than a refresh registration.

Abstract: A service-based architecture (SBA) IP Multimedia Network Subsystem (IMS) network exposes Network Functions (NFs) to nodes within a 5G core network (CN), nodes within the SBA IMS network, and/or nodes within another network. In contrast to the SBA IMS network, legacy IMS networks are non-SBA IMS stateful networks that may utilize the Session Initiation Protocol (SIP). Utilizing the SBA IMS network, a node in the 5G core network can communicate directly with any node in the SBA IMS network. The SBA IMS network is stateless and open as opposed to stateful and closed as in SIP based legacy IMS networks. In some configurations, the SBA IMS network utilizes a HyperText Transfer Protocol (HTTP). For instance, instead of using the application layer SIP protocol, techniques can include using HTTP. The SBA IMS may also connect to legacy SIP IMS networks.

Abstract: The systems, devices, and methods discussed herein are directed to a Wi-Fi calling (WFC) portable communication device, or a user equipment (UE), for providing a location information during a registration with a wireless local area network (WLAN). During a registration with a WLAN, the WFC UE may send a request for obtaining a public Internet Protocol (IP) address information of the WLAN, which includes location information of the WLAN, and use the public IP address of the WLAN as the assigned IP address of the WFC UE to register with the WLAN.

Abstract: The systems, devices, and methods discussed herein are directed to a Wi-Fi calling (WFC) portable communication device, or a user equipment (UE), for providing a location information during a registration with a wireless local area network (WLAN). During a registration with a WLAN, the WFC UE may send a request for obtaining a public Internet Protocol (IP) address information of the WLAN, which includes location information of the WLAN, and use the public IP address of the WLAN as the assigned IP address of the WFC UE to register with the WLAN.

Abstract: The systems, devices, and methods discussed herein are directed to a Wi-Fi calling (WFC) portable communication device, or a user equipment (UE), for providing a location information during a registration with a wireless local area network (WLAN). During a registration with a WLAN, the WFC UE may send a request for obtaining a public Internet Protocol (IP) address information of the WLAN, which includes location information of the WLAN, and use the public IP address of the WLAN as the assigned IP address of the WFC UE to register with the WLAN.