Abstract: Provided are a computer-implemented method, a computing system and a non-transitory storage medium. In the method, available Wireless Local Area Networks (WLANs) accessible on a User Equipment (UE) are determined. The available WLANs on the UE are prioritized based on degree of wireless connectivity. The UE is connected to a first WLAN with the highest degree of wireless connectivity. A registration request is sent, over the first WLAN, to an Internet Protocol Multimedia Subsystem (IMS) for the UE. A status of the IMS registration for the UE is received from the IMS, where the status includes a successful registration status or an unsuccessful registration status. Upon receiving the successful registration status of the IMS registration, data packets are transmitted to the IMS.

Abstract: A user equipment (UE), a method and a communication apparatus are provided. The UE includes a first communication circuit that receives a notification, a processor, and a memory unit that is operatively connected to the processor and includes instructions. The instructions, when being executed, cause the processor to execute a method. In the method, it is determined that the notification indicates that an incoming call was directed to the UE during a preset time period. It is identified that the UE did not receive the incoming call during the preset time period based on: an identification that the incoming call was not forwarded to another device; and an identification that, during the preset time period, the UE was not in a call handling mode in which the UE does not receive incoming call. A recovery option is performed based on identification that the UE did not receive the incoming call.

Abstract: Systems and methods are provided for improving the overall experience for users conducting voice calls over 5G. For example, failing to establish a Transport Control Protocol (TCP) connection to a Proxy-Call Session Control Function (P-CSCF) server leads to user equipment (UE) not registering to an Internet Protocol Multimedia Subsystem (IMS), and impacts the 5G voice call. A voice call flow handling function on the UE performs several handling procedures to dynamically adjust the flow to address failed connections to the P-CSCF server. After initiating a 5G voice call, the UE can detect a failed connection to the P-CSCF server. In response, a secondary P-CSCF server from a plurality of available P-CSCF servers is selected. A connection to the selected secondary P-CSCF server is attempted. A successful connection to the selected secondary P-CSCF server supports the UE registering to the IMS to conduct the voice call over 5G New Radio (NR).

Abstract: Methods and a user equipment (UE) are provided. The method comprises determining whether a UE is performing a voice over internet Protocol (VoIP) call setup procedure. Upon a determination that the UE is performing a VoIP call setup, transmission of measurement report information to a network in which the UE Is operating is selectively enabled or disabled until the VoIP call setup procedure is complete. Selective enablement of the transmission of the measurement report information depends upon a further determination that a serving cell currently serving the UE fails to meet a stability threshold. Selective disablement of the transmission of the measurement report information occurs when redirection or handover of the UE pursuant to the transmission of the measurement report information is a possibility.

Abstract: Systems and methods are provided for determining a status of an Internet Protocol Multimedia Subsystem registration on a device, determining an extent of cellular coverage for the device, and selectively disabling a Fifth Generation mode of the device based on the status of the IMS registration or the extent of cellular coverage.

Abstract: An electronic device-implemented method is provided. The method includes: determining a primary data subscription and a secondary data subscription for the electronic device; processing a request for packet service from an application associated with the electronic device; and establishing one or more data connections for the application in response to the request for packet service through at least one of the primary data subscription or the secondary data subscription based on a data subscription policy. Further, an electronic device and a non-transitory storage medium of the electronic device storing instructions using the method are also provided.

Abstract: Systems and methods are provided for enabling dual subscriber identity module (SIM) card usage for accessing packet switched services/networks. Each of the dual SIM cards operate in an always on mode and can be used to establish and maintain data connections over which the packet switched services/networks can be engaged. The dual SIM cards can be used in the aggregate or separately according to dynamic selection or fixed/mapped associations between an application requesting to access the packet switched services/networks and one or more of the dual SIM cards.

Abstract: The voice call device includes a processor, and a memory having instructions stored thereon, which, when executed by the processor, cause the processor to perform operations as follows. After a voice call is initiated via a user equipment (UE) device over 5G NR, a status of an IMS registration (e.g., failed, in progress, etc.) for the UE is identified. For example, in response to determining that the status of IMS registration for the UE is in-progress, the voice call can be held, and a wait timer initiated. If the IMS registration completes prior to the wait timer expiring, the voice call is conducted over 5G NR or 4G Long-term Evolution (LTE).

Abstract: An apparatus for wireless communication of a user equipment (UE) is disclosed. The apparatus may include a memory and at least one processor coupled to the memory. The at least one processor may be configured to receive a paging signal associated with an mobile terminating (MT) internet protocol (IP) multimedia subsystem (IMS) voice session. The at least one processor may be further configured to send a session initiation protocol (SIP) message in response to the paging signal. The at least one processor may be further configured to receive a second SIP message indicating SIP failure. The at least one processor may be further configured to determine whether the second SIP message indicates a network failure or a global failure. The at least one processor may be further configured to establish a connection with a different RAT network when the second SIP message indicates a network failure or a global failure.

Abstract: An apparatus for wireless communication of a UE is disclosed. The apparatus may initiate, at a new radio (NR) serving cell, a voice session with an IMS. The apparatus may perform, in response to determining that voice over NR (VoNR) is not supported by the first NR cell, an EPS fallback procedure to establish the voice session with the IMS. The apparatus may update a whitelist of NR cells that support VoNR to include the first NR cell when it is determined that the first NR cell supports VoNR.