A method for determining an access point name (APN) for mission critical services includes determining, at a user equipment (UE), APN information of a packet data network (PDN) based on at least one of a mission critical organization name, a registered public land mobile network identifier, or a home public land mobile network identifier currently associated with the UE; and connecting to the PDN based on the determined APN information.

A method for automatically attaching a purpose-built electronic device to a provider network includes steps of discovering, by a Wi-Fi module of the purpose-built electronic device, a wireless data network in operable communication with the provider network selecting, by the Wi-Fi module, the wireless data network, transmitting a primary authentication certificate from the Wi-Fi module to an authentication, authorization, and accounting server of the provider network, receiving, by an application server of the provider network, a secondary authentication certificate from a functionality module of the purpose-built electronic device authenticating, by the provider network, the primary and secondary authentication certificates, and attaching the purpose-built device to the provider network.

The present disclosure relates to a method performed by a connectivity service platform in a communication network. The method comprises storing a fall-back policy comprising information about a fall-back timer. The method also comprises sending a policy message comprising information about the fall-back policy to a radio device comprising an eUICC. The method also comprises determining that the radio device experiences a problem with a wireless network connection from a first subscription of the radio device with a first network operator. The method also comprises starting the fall-back timer in accordance with the stored fall-back policy in response to said determining The method also comprises falling back in accordance with the stored fall-back policy in response to the started fall-back timer having expired, thereby enabling the connectivity service platform to communicate with the radio device via a network connection from a second subscription of the radio device instead of from the first subscription.

The application relates to a method for operating a flow control entity configured to control a data packet flow in a radio access network and a transport network of a communications network. It is determined that a transmission condition for the data packet flow through the communications network has changed, and determined through which radio access node the data packet flow is transmitted. A new anchor point for the data packet flow is determined in dependence on the radio access node, and a bearer control entity is informed about the new anchor point.

Disclosed as a method of controlling access to a network in a wireless communication system and an apparatus therefor. Specifically, a method of performing access to a network by a user equipment (UE) in a wireless communication system may include receiving first information on whether a specific access identity is valid in a specific public land mobile network (PLMN) from the network, when the UE selects a PLMN and attempts access, determining whether the specific access identity is valid in the PLMN selected by the UE based on the first information, selecting an access identity based on the determination, and performing an access control procedure based on the selected access identity.

A switching method and a terminal device, which relate to the communications field. The switching method comprises: establishing, by a terminal device, a first packet data network PDN connection in a long term evolution LTE access network; switching, by the terminal device, the first PDN connection from the LTE access network to a wireless local area network WLAN access network; establishing, by the terminal device, a second PDN connection in the LTE access network, so that the terminal device is in a registered state in the LTE network; and switching, by the terminal device, the first PDN connection or a third PDN connection established in the WLAN access network, to the LTE access network.

A communications system is described in which a core network apparatus provides a configuration for accessing a packet data network by a mobile communications device when operator determined barring is in place. Also disclosed are signalling messages used to control the setting up of the packet data connection, which messages are sent between a device in the core network and the mobile communications device.

Embodiments of this application provide a network attach method and user equipment. The method is applied to UE, and includes: sending a first network attach request message to a first target gateway according to the first information; where the first information is used to indicate load information of each of M gateways; the first target gateway is at least one gateway, to which the UE has never sent a network attach request message, in the M gateways; and the first network attach request message is used to request to attach to a 3GPP network through an untrusted Wi-Fi network, where M is a positive integer.

Embodiments of this application disclose a network access method. The method may include: receiving, by a data management network element, a request message from an access and mobility management function network element, where the request message includes identification information of user equipment and identification information of a residential gateway connected to the user equipment; determining, by the data management network element, subscription data of the residential gateway based on the identification information of the residential gateway; determining, by the data management network element, a subscription type of the user equipment based on the subscription data of the residential gateway and the identification information of the user equipment; and sending, by the data management network element, indication information of the subscription type to the access and mobility management function network element, where the subscription type indicates a subscriber or a non-subscriber of the residential gateway.

The present disclosure provides a method of enabling wireless access network selection at a multiplicity of wireless client devices. The method comprises: for each of a plurality of wireless access networks, collecting data indicative of at least wireless access technology, geographic coverage and performance; storing said data in a database available to a server; deriving, at the server, a client device network selection policy from the data, the policy defining network measurements to be carried out by a client device and criteria to be used by the client device to select one or more wireless networks; sending the network selection policy to a wireless client device; and applying the network selection policy at the wireless client device to select and attach to one or more given wireless access networks, performing one or more of said network measurements on the given wireless access network(s) and using the results to make a determination to remain attached to the given wireless access network(s) or to select and attach to a further wireless access network or networks.