Disclosed are an information processing method and a related network device. The method comprises: a session management function (SMF) obtaining first address information of a local domain name system (DNS) server; sending the first address information to an uplink classifier; and sending, by means of an access and mobility management function (AMF), the first address information to a user equipment (UE), wherein the first address information is used for the UE to update the IP address of local DNS server.

This disclosure handles a registration procedure in a UE supporting registration to 5GC via untrusted non-3GPP access network and 3GPP access network. More specifically this disclosure defines a UE behavior when a registration procedure is not successful to 5GC via first access network type (e.g. untrusted non-3GPP network access) after transmitting maximum number of registration request message via the first access network type to the 5GC and the UE is registered to 5GC via other access network type (e.g. 3GPP access network (NG-RAN)).

This disclosure handles a registration procedure in a UE supporting registration to 5GC via untrusted non-3GPP access network and 3GPP access network. More specifically this disclosure defines a UE behavior when a registration procedure is not successful to 5GC via first access network type (e.g. untrusted non-3GPP network access) after transmitting maximum number of registration request message via the first access network type to the 5GC and the UE is registered to 5GC via other access network type (e.g. 3GPP access network (NG-RAN)).

A communication device for use in a system including a database storing a unique identifier and position information for every mobile communication terminal is provided with an acquisition unit that acquires, based on the unique identifier of a mobile communication terminal serving as a communication destination, the position information of the mobile communication terminal serving as the communication destination from the database, and acquires an IP address of a router accommodating the mobile communication terminal serving as the communication destination, based on the acquired position information, and a communication unit that transmits a packet having the IP address in a header.

A communication device for use in a system including a database storing a unique identifier and position information for every mobile communication terminal is provided with an acquisition unit that acquires, based on the unique identifier of a mobile communication terminal serving as a communication destination, the position information of the mobile communication terminal serving as the communication destination from the database, and acquires an IP address of a router accommodating the mobile communication terminal serving as the communication destination, based on the acquired position information, and a communication unit that transmits a packet having the IP address in a header.

The apparatus includes at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to duplicate base station computation of an identifier value for a user equipment, and search for one or more control channel transmissions incorporating an identifier value matching the identifier value.

A method may comprise transmitting using a first uplink carrier and receiving a signal using a first downlink carrier. The signal may include a message indicating activation of a second uplink carrier. A method may further comprise initiating, based on the message, a timer associated with deactivation of the second uplink carrier. The method may further comprise transmitting using the second uplink carrier activated based on the message and deactivating the second uplink carrier on a condition that expiration of the timer is detected.

A method may comprise transmitting using a first uplink carrier and receiving a signal using a first downlink carrier. The signal may include a message indicating activation of a second uplink carrier. A method may further comprise initiating, based on the message, a timer associated with deactivation of the second uplink carrier. The method may further comprise transmitting using the second uplink carrier activated based on the message and deactivating the second uplink carrier on a condition that expiration of the timer is detected.

A first radio base station informs a second radio base station about the configuration information of a second carrier, such as NBC or EC, not having an individual first identifier, as the configuration information of the second carrier is correlated with a first carrier, such as BC, having the individual first identifier. The radio station has a function of performing communication with a radio terminal using simultaneously a plurality of carriers included in the carrier set.

Methods, systems, and apparatuses are described for extending a network through the use of access nodes. The access nodes may receive packets from user devices via wireless networks. The packets may be routed to a remote server for further network access. The access nodes may communicate with the user devices using network addresses associated with the wireless networks.