Abstract: According to an aspect of the present invention, a procedure and a communicator for initial registration of UE or periodic or mobility-based registration for achieving Network Slice Specific Authentication and Authorization in 5GS. Furthermore, a communicator for achieving a function related to Network Slice Specific Authentication and Authorization in 5GS is provided by providing a procedure and a communicator for changing a UE configuration initiated by a network, the procedure being initiated based on the Network Slice Specific Authentication and Authorization initiated by the network and completion of the Network Slice Specific Authentication and Authorization.

Abstract: According to an aspect of the present invention, a procedure and a communicator for initial registration of UE or periodic or mobility-based registration for achieving Network Slice Specific Authentication and Authorization in 5GS. Furthermore, a communicator for achieving a function related to Network Slice Specific Authentication and Authorization in 5GS is provided by providing a procedure and a communicator for changing a UE configuration initiated by a network, the procedure being initiated based on the Network Slice Specific Authentication and Authorization initiated by the network and completion of the Network Slice Specific Authentication and Authorization.

Abstract: Provided is communication control accompanied with establishment of a multi-access PDN connection or with rejection of establishment of a multi-access PDN connection, on the basis of a response to a PDN connectivity establishment request from a terminal device. This provides a method of communication control and the like accompanied with a multi-access PDN connectivity establishment request from the terminal device.

Abstract: To provide a control apparatus or a terminal apparatus included in a communication system with a preferable measure for session management, a preferable communication control measure for establishing a session corresponding to a session continuation mode, or a preferable communication control measure for session control. With this configuration, the control apparatus or the terminal apparatus included in the communication system is provided with a session anchor relocation procedure corresponding to a mode relating to continuation of a preferable session, a communication control measure, and a management measure.

Abstract: To provide a communication control means for a handover procedure corresponding to a mobility preferable for a terminal or a communication path, and/or a control means for supporting a preferable handover procedure, and/or a communication control means for establishing a session supporting a preferable handover procedure. This provides the communication control means for providing the types of mobility preferable for the terminal and the communication path, and the handover for realizing diversified mobility.

Abstract: Provided is a communication control method for optimally managing control information of a terminal apparatus capable of connecting to various kinds of core networks, a device communication controller for a network capable of connecting to the terminal apparatus, a configurator for configuring control information relating to communication of each device, a communication controller for updating configuration information relating to communication stored by each device, and the like, in the terminal apparatus and the network. This provides a communication controller suitable for a communication system and a terminal apparatus that support configurations of various kinds of core networks.

Abstract: Provided is a communication measure for registering information about a terminal apparatus in various apparatuses, such as a control apparatus and a terminal apparatus, included in a communication system in which a protocol used for registration management or registration information management for a mobile communication service is shared, based on the states of the various apparatuses. Also provided is a communication control measure for updating the information about the terminal apparatus registered in the various apparatuses. Thus, there are provided, in a communication system in which a protocol used for registration management or registration information management for a mobile communication service is shared, a measure for registration management based on the states of various apparatuses included in the communication system, such as a control apparatus and a terminal apparatus, and a realization measure for determining post-registration behavior.

Abstract: Provided are a terminal apparatus capable of connecting to various core networks, a communication controller suitable for a device in a network connectable to the terminal apparatus, a communication controller for changing a core network to which the terminal apparatus is connected, a communication controller for switching a session established by the terminal apparatus to a session with another core network, and the like. This provides the terminal apparatus supporting a switch of connectivity between multiple core networks, and a communication controller suitable for the device in the network connectable with the terminal apparatus.

Abstract: Provided is a communication procedure for data transmission and/or reception suitable for a Network Slice and a DeCOR. One or a plurality of Network Slices are included in a core network managed by the network operator, the Network Slice is configured of one or a plurality of Network Functions, and based on registration information of a terminal apparatus or a request of the terminal apparatus, the terminal apparatus performs processing to connect to the one or the plurality of Network Slices corresponding to a service or an application. Furthermore, based on an authentication result from the network, the terminal apparatus performs processing to connect to a supplemental Network Slice.

Abstract: Provided are a communications control method, etc., for multi-access PDN connection establishment requests from terminal devices. Provided is communication control accompanied with establishment of a multi-access PDN connection or with rejection of establishment of a multi-access PDN connection, based on a response to a PDN connectivity establishment request from a terminal device.

Abstract: A transmission and/or reception unit is included and configured to transmit an ATTACH REQUEST message including identification information for requesting communication of a NAS message including user data to an MME in a core network, configured to receive an ATTACH ACCEPT message including identification information indicating acceptance of the communication of the NAS message from the MME, and configured to transmit the NAS message to the MME after receiving the ATTACH ACCEPT message. This provides establishment of a PDN connection for performing machine type communication in which a small data packet is transmitted at a low frequency, and a communication control method.

Abstract: This disclosure involves enabling a terminal device to connect to a core network and move in a communication system in which multiple core networks are overlaid. In some embodiments, a core network device can receive a tracking area update request message from a base station device. The core network device can transmit, to the base station device, a signaling message after receiving the tracking area update request message. The signaling message can contain information indicating a second core network, where the first core network and the second core network exist within an identical PLMN.

Abstract: To provide a control apparatus or a terminal apparatus included in a communication system with a preferable measure for session management, a preferable communication control measure for establishing a session corresponding to a session continuation mode, or a preferable communication control measure for session control. With this configuration, the control apparatus or the terminal apparatus included in the communication system is provided with a session anchor relocation procedure corresponding to a mode relating to continuation of a preferable session, a communication control measure, and a management measure.

Abstract: To provide a method of communication control and the like based on a multi-access PDN connection establishment request from a terminal device. Provided is communication control accompanied with establishment of a multi-access PDN connection or with rejection of establishment of a multi-access PDN connection, based on a response to a PDN connectivity establishment request from a terminal device.

Abstract: A transmission and/or reception unit is included and configured to transmit an ATTACH REQUEST message including identification information for requesting communication of a NAS message including user data to an MME in a core network, configured to receive an ATTACH ACCEPT message including identification information indicating acceptance of the communication of the NAS message from the MME, and configured to transmit the NAS message to the MME after receiving the ATTACH ACCEPT message. This provides establishment of a PDN connection for performing machine type communication in which a small data packet is transmitted at a low frequency, and a communication control method.

Abstract: Provided is a communication measure for registering information about a terminal apparatus in various apparatuses, such as a control apparatus and a terminal apparatus, included in a communication system in which a protocol used for registration management or registration information management for a mobile communication service is shared, based on the states of the various apparatuses. Also provided is a communication control measure for updating the information about the terminal apparatus registered in the various apparatuses. Thus, there are provided, in a communication system in which a protocol used for registration management or registration information management for a mobile communication service is shared, a measure for registration management based on the states of various apparatuses included in the communication system, such as a control apparatus and a terminal apparatus, and a realization measure for determining post-registration behavior.

Abstract: Communication control in response to establishment of a multi-access PDN connection or rejection of establishment of a multi-access PDN connection is performed based on a response to a PDN connectivity establishment request from a terminal device. This provides a method of communication control and the like in response to a multi-access PDN connectivity establishment request from the terminal device.

Abstract: Performed are communication control for establishing a multi-access PDN connection or rejecting the establishment, and communication control for configuring a routing rule for the multi-access PDN connection or rejecting the configuration, on the basis of an operator policy and a terminal policy. This provides a communication control method and the like for the multi-access PDN connection.

Abstract: To provide a communication control means for a handover procedure corresponding to a mobility preferable for a terminal or a communication path, and/or a control means for supporting a preferable handover procedure, and/or a communication control means for establishing a session supporting a preferable handover procedure. This provides the communication control means for providing the types of mobility preferable for the terminal and the communication path, and the handover for realizing diversified mobility.

Abstract: Provided is a communication measure for registering information about a terminal apparatus in various apparatuses, such as a control apparatus and a terminal apparatus, included in a communication system in which a protocol used for registration management or registration information management for a mobile communication service is shared, based on the states of the various apparatuses. Also provided is a communication control measure for updating the information about the terminal apparatus registered in the various apparatuses. Thus, there are provided, in a communication system in which a protocol used for registration management or registration information management for a mobile communication service is shared, a measure for registration management based on the states of various apparatuses included in the communication system, such as a control apparatus and a terminal apparatus, and a realization measure for determining post-registration behavior.