Apparatuses, systems, and methods for a wireless device to perform methods for de-registration of the wireless device from a first access type over a second access type. Methods also include procedures for maintaining state machines associated with both access types as well as procedures to determine a connection for re-transmitting a de-registration request and to avoid collisions between procedures associated with the first and second access types. Further, methods include an information element configured to indicate which access type has been de-registered.

Apparatuses, systems, and methods for a wireless device to perform methods for de-registration of the wireless device from a first access type over a second access type. Methods also include procedures for maintaining state machines associated with both access types as well as procedures to determine a connection for re-transmitting a de-registration request and to avoid collisions between procedures associated with the first and second access types. Further, methods include an information element configured to indicate which access type has been de-registered.

A mechanism is provided to monitor and control the number of terminals (100) or number of PDU sessions for a network slice, or both. A new network function called the Network Slice Control Function (NSCF) (85) is defined that interacts with an Access and Mobility Management Function (AMF) (40) and/or Session Management Function (SMF) (45) to monitor and control a number of users for a network slice, a number of PDU sessions for a network slice, or both. The NSCF (85) determines per slice quotas for the number of users and/or number of session for network slices and interacts with the AMF (40) and/or SMF (45) to enforce the quotas.

A mechanism is provided to monitor and control the number of terminals (100) or number of PDU sessions for a network slice, or both. A new network function called the Network Slice Control Function (NSCF) (85) is defined that interacts with an Access and Mobility Management Function (AMF) (40) and/or Session Management Function (SMF) (45) to monitor and control a number of users for a network slice, a number of PDU sessions for a network slice, or both. The NSCF (85) determines per slice quotas for the number of users and/or number of session for network slices and interacts with the AMF (40) and/or SMF (45) to enforce the quotas.

Systems, methods, apparatuses, and computer program products for dynamically unsubscribing from a public land mobile network (PLMN)/non-private network (NPN) service. In example embodiments, a method is provided. The method comprises transmitting, by a user equipment (UE), at least one first message (112, 114) associated with registering with at least one network, wherein the at least one first message (112, 114) includes first information that indicates whether the user equipment (UE) is capable of unsubscribing from one or more services associated with the at least one network; and receiving, by the user equipment (UE), at least one second message (124) associated with accepting registration of the user equipment (UE) with the at least one network, wherein the at least one second message (124) includes second information that indicates whether the user equipment (UE) is allowed to unsubscribe from the one or more services.

Systems, methods, apparatuses, and computer program products for dynamically unsubscribing from a public land mobile network (PLMN)/non-private network (NPN) service. In example embodiments, a method is provided. The method comprises transmitting, by a user equipment (UE), at least one first message (112, 114) associated with registering with at least one network, wherein the at least one first message (112, 114) includes first information that indicates whether the user equipment (UE) is capable of unsubscribing from one or more services associated with the at least one network; and receiving, by the user equipment (UE), at least one second message (124) associated with accepting registration of the user equipment (UE) with the at least one network, wherein the at least one second message (124) includes second information that indicates whether the user equipment (UE) is allowed to unsubscribe from the one or more services.

The present disclosure relates to a communication technique for fusing a 5G communication system with IoT technology to support a higher data rate than a 4G system, and a system thereof. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail, security and safety related services, etc.) on the basis of 5G communication technology and IoT-related technology. According to one embodiment of the present disclosure, provided is a method of a first server in a wireless communication system. The method of the first server is characterized by comprising the steps of: receiving first information on whether a relocation procedure of an application context can be started from at least one of a terminal and an application server; confirming second information related to the relocation procedure of the application context on the basis of the first information; transmitting the second information to the terminal and the application server; and when it is confirmed that the relocation procedure of the application context is being performed, transmitting an indicator indicating that the relocation procedure of the application context is in progress to the terminal and the application server.

The present disclosure relates to a communication technique for fusing a 5G communication system with IoT technology to support a higher data rate than a 4G system, and a system thereof. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail, security and safety related services, etc.) on the basis of 5G communication technology and IoT-related technology. According to one embodiment of the present disclosure, provided is a method of a first server in a wireless communication system. The method of the first server is characterized by comprising the steps of: receiving first information on whether a relocation procedure of an application context can be started from at least one of a terminal and an application server; confirming second information related to the relocation procedure of the application context on the basis of the first information; transmitting the second information to the terminal and the application server; and when it is confirmed that the relocation procedure of the application context is being performed, transmitting an indicator indicating that the relocation procedure of the application context is in progress to the terminal and the application server.

A method performed by a base station (BS) is provided. The method includes transmitting system information including network slice related information, receiving, from a user equipment (UE), a radio resource control (RRC) connection complete message including single network slice selection assistance information (S-NSSAI), and transmitting, to the UE, an RRC connection release message including priority information related to the S-NSSAI.

Disclosed are apparatuses and methods for location area update. An example method may include transmitting a first request to establish a radio link, the first request including information on a first location area update, transmitting a second request to execute the first location area update via the radio link, and releasing the radio link in response to at least one status of an access stratum feedback to the second request. Related apparatuses and computer readable medium are also disclosed.