T-mobile Usa, Inc.

Srinivasan Sridharan

Subramania Kaushik

Karthik Chandrasekaran

Muhilan Vamadevan

A system having a processor configured for executing computer-executable instructions for deregistering a user equipment (UE) during a transition between a first mobile domain and a second mobile domain. A data store is paired with the processor being configured for storing UE data, the UE data comprising one or more of the following: customer profile information, customer authentication information, and encryption keys for the information. A connection controller is configured for managing all connection and session related information from the UE. Upon detecting the UE is transitioned from the first mobile domain to the second mobile domain, the processor is configured to send a data packet to the connection controller to deregister the UE. Absent a confirmation message from the connection controller, the processor is configured to deregister the UE.

Methods to improve and optimize de-registration procedures with access and mobility management function (AMF)

A computer-implemented method for protecting a user data repository (UDR) from over-accumulation of subscription requests in a subscriber profile of a subscriber of a 5G network may include receiving, from a network node on the 5G network, a new subscription request requesting a notification of status changes associated with the subscriber profile, retrieving the subscription profile from the UDR, and determining a number of preexisting subscription requests associated with a network function (NF) instance identification (ID) of the network node in the subscriber profile. If the number of preexisting subscription requests in the subscriber profile is equal to or greater than a predetermined value (X), the computer-implemented method may further include deleting at least one of the preexisting subscription requests from the subscriber profile and writing the new subscription request to the subscriber profile at the UDR.

Protecting a user data repository (UDR) from over-accumulation of subscription requests in a standalone 5G network

Techniques for optimizing terminating access domain selection (TADS) flow for a Fifth Generation (5G) standalone (SA) capable interworking device with legacy Fourth Generation (4G) voice over long term evolution (VoLTE) network are discussed herein. A 5G SA capable user equipment (UE) may receive a voice call from any generation network. To receive a 5G voice call on an IP Multimedia Subsystem (IMS) network, a terminating UE must be currently connected to a 5G SA network. However, the system has to determine the currently connected radio access technology (RAT) type before establishing a connection; otherwise, attempts to establish a 5G NR connection would result in network call completion errors. The system may configure a home subscriber server to receive a TADS request for the terminating UE and return a TADS status.

Optimizing terminating access domain selection for a 5G SA interworking device with legacy network

Systems and methods for providing wireless charging via radio-frequency (RF) carrier wave. The system can enable user equipment (UE) to charge wirelessly using RF waves when the UE is not it use. The system can activate wireless charging based in part on the battery level of the UE. The system can also initiate wireless charging when the UE is sufficiently idle (e.g., not being used for a call or web browsing). The system can also ensure that the signal strength of the carrier waves at the UE is sufficiently strong to support wireless charging. One or more system components can ensure that the threshold charge level, threshold signal strength, and threshold utilization rate are met and that the UE is authorized for wireless charging on the network. Wireless charging may be billed to the user according to usage (e.g., kWh), at a flat rate, or per instance.

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Bellevue, WA, United States of America

Srinivasan Sridharan