The disclosure relates to a communication technique for converging Internet of things (IoT) technology with 5th generation (5G) communication systems designed to support a higher data transfer rate beyond 4th generation (4G) systems, and a system therefor. The disclosure may be applied to intelligent services (e.g., smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology. A terminal operation method related to each universal subscriber identity module (USIM) when dual connectivity is established for a terminal supporting multi-USIM, and an apparatus therefor are provided.

Systems and methods are provided to manage, control, and configure connectivity for vehicles or other devices. Data in different formats, which is received from different connectivity providers, is converted into a unified data format and stored in a data store. The unified data format allows analytics to be performed across the converted data. In some embodiments, a connectivity type of a plurality of connectivity types associated with a vehicle is controlled based on a current lifecycle stage of the vehicle. In some embodiments, a first data connection between a device and a first connectivity provider is utilized. Based on an identified change in location of the device and information associated with a second data connection between the device and a second connectivity provider, a switch to the second data connection is facilitated based on a determination that that the second data connection has more optimal characteristics.

A method and an apparatus for terminating a cellular network connection of a terminal that is connected without authentication are provided. The disclosure relates to a communication technique and a system for fusing a 4th generation (4G) system and a 5th generation (5G) communication system to support higher data rates, which is subsequent to the 4G system, with Internet-of-things (IoT) technology. The disclosure may be applied to intelligent services (e.g., smart home, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safe-related services, or the like) based on 5G communication technology and IoT-related technology.

Methods and systems for managing decoding of control channel on a multi-SIM UE. A method includes receiving, by the UE, the plurality of control channels from at least one Base Station (BS), the plurality of control channels corresponding to a plurality of Subscriber Identity Modules (SIMs), selecting, by the UE, a respective decoder for each of the plurality of SIMs, and decoding, by the UE, each respective control channel among the plurality of control channels using the respective decoder for a respective SIM among the plurality of SIMs, the respective SIM corresponding to the respective control channel.

Methods and systems for managing decoding of control channel on a multi-SIM UE. A method includes receiving, by the UE, the plurality of control channels from at least one Base Station (BS), the plurality of control channels corresponding to a plurality of Subscriber Identity Modules (SIMs), selecting, by the UE, a respective decoder for each of the plurality of SIMs, and decoding, by the UE, each respective control channel among the plurality of control channels using the respective decoder for a respective SIM among the plurality of SIMs, the respective SIM corresponding to the respective control channel.

A wireless communication method of a wireless communication apparatus for supporting a plurality of radio access technologies (RATs) including receiving a first downlink signal corresponding to a first RAT and a second downlink signal corresponding to a second RAT from a base station through a first frequency band, decoding the first downlink signal, detecting the second downlink signal based on a result of decoding of the first downlink signal, and decoding the detected second downlink signal to acquire data included in the second downlink signal may be provided.

A wireless communication method of a wireless communication apparatus for supporting a plurality of radio access technologies (RATs) including receiving a first downlink signal corresponding to a first RAT and a second downlink signal corresponding to a second RAT from a base station through a first frequency band, decoding the first downlink signal, detecting the second downlink signal based on a result of decoding of the first downlink signal, and decoding the detected second downlink signal to acquire data included in the second downlink signal may be provided.

Apparatuses, methods, and systems are disclosed for establishing a connection with a dual registered device. One method includes receiving a first request to establish an internet protocol multimedia subsystem session with a first device, wherein the first device is dual registered to: a first network access supporting 5G core network connectivity; and a second network access supporting evolved packet core network connectivity and circuit switched network connectivity, wherein the first device has connectivity to an internet protocol multimedia subsystem via either the first network access or the second network access. The method includes determining first information corresponding to a network access connectivity selected from the first network access and the second network access through which the first device has internet protocol connectivity with the internet protocol multimedia subsystem. The method includes transmitting a second request to a first network function to retrieve second information.

A wireless User Equipment (UE) and an Access and Mobility Management Function (AMF) establish first and second active registrations and corresponding N1s. The UE and AMF deactivate the second active registration and establish a third active registration and corresponding N1. The UE and AMF exchange active N1 signaling for the first active registration and the third active registration. The UE and AMF exchange inactive N1 signaling for the second inactive registration.

A communication apparatus includes an acquisition unit (551) acquiring information from a base station apparatus, a determination unit (552) determining whether a connected base station apparatus is a non-ground station or a ground station based on the acquired information, and a communication controller (553) executing communication control for the non-ground station when it is determined that the connected base station apparatus is the non-ground station.