Disclosed are a handover processing method, a network device, a terminal device, and a computer storage medium. The method comprises: when a first network device located in a first system network or a first core network is connected to a terminal device, the first network device establishes a candidate connection between the terminal device and a target system network or a target core network, wherein the candidate connection is used for handover to the target system network or the target core network when the terminal device meets a preset condition.

Various arrangement of compound cellular networks that accommodate multiple cellular communication protocols are presented. A compound cellular network may connect user equipment (UE) with a data network using a first anchor point. The compound cellular network may transition the UE from the first anchor point to a second anchor point. Following the transitioning, the compound cellular network may connect the UE with the data network using the second anchor point. The UE may then be transitioned from the second anchor point to a converged anchor point of the compound cellular network. The UE may be locked to the converged anchor point while the UE is communicating with a second cellular network that communicates using the second cellular communication protocol.

There is provided a method comprising, for a UE associated with a first base station in a first cell of a plurality of cells, receiving first system information and second system information, said first system information associated with the first cell, said second system information associated with the plurality of cells and, when the UE moves to a second cell of the plurality of cells, updating said first information and maintaining said second information.

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may establish a packet data network (PDN)-connectivity session to a PDN using a cellular radio access technology (RAT) and migrate the PDN-connectivity session from a source access node (AN) to a target AN. Migration may initiate when a decision to perform a handover is made. The target AN may receive a network address and information about a first data radio link established between the UE and source AN. The target AN may establish a second data radio link with the UE based at least in part on the first data radio link information, and may transmit, to the PDN, a path update including the network address and an updated path via the target AN. In some cases, the target AN may forward packets between the UE and the PDN via the second data radio link.

A user equipment may determine a latency requirement of the user equipment, and may determine a first set of latencies between the user equipment and a first multi-access edge computing (MEC) device. The user equipment may determine a second set of latencies between the user equipment and a second MEC device, and may calculate a first violation probability based on the latency requirement and the first set of latencies. The user equipment may calculate a second violation probability based on the latency requirement and the second set of latencies, and may identify the first MEC device or the second MEC device based on the first violation probability and the second violation probability. The user equipment may selectively initiate a MEC handoff of the user equipment to the first MEC device or the second MEC device based on identifying the first MEC device or the second MEC device.

Methods and apparatus are provided for differentiating security configurations in a radio local area network. A method can comprises: at a base station, sending a handover request to a local access point for initiating a handover of a user equipment from the base station to the local access point, the handover request comprising an indication of a scheme of security configuration to be used for protecting a communication between the base station and the user equipment. The method can further comprise, at the base station, forwarding to the user equipment a handover command received from the local access point, wherein the indication is comprised in the handover command by the local access point. The method can further comprise communicating with the user equipment according to the scheme of security configuration after the user equipment is handover to the local access point.

During PDN connection establishment in the EPC, a UE and a session management entity (SME) (e.g., PGW-C+SMF) exchange information. In case the SME supports more than one S-NSSAI, before the SME provides an S-NSSAI to the UE, the SME should check such that the selected S-NSSAI is among the UE's subscribed S-NSSAIs by retrieving the Subscribed S-NSSAI from a UDM using, for example, the Nudm_SDM_Get service operation.

The present application discloses a method for supporting a selected IP traffic offload (SIPTO) by a mobility management entity (MME) when a user equipment (UE) handovers from a source base station to a target base station in a mobile communication system. The method includes acquiring a local home network identifier (ID) of the source base station, acquiring a local home network ID of the target base station from the target base station, and determining whether the UE has moved out of the local home network of the source base station according to the local home network ID of the source base station and the local home network ID of the target base station.

A method in a network node for handling a traffic flow of a User Equipment, UE. The network node creates a unique Network Address Translated, NAT:ed, Internet Protocol, IP, address mapping to an IP address of the UE. The NAT:ed IP address includes a local IP address prefix assigned to a related first local service cloud. The NAT:ed IP address is usable for the traffic flow both before and after a handover of the UE from the first local service cloud to a neighbouring second local service cloud. The NAT:ed IP address is unique at least in all local service clouds neighbouring to the first local service cloud, including the second local service cloud. The network node assigns the NAT:ed IP address to the UE for local break out of the traffic flow of the application session to the first local service cloud.

A method and apparatus for multiple radio access technology (multi-RAT) access mode operation for a wireless transmit/receive unit (WTRU) are disclosed. A WTRU and a network may enable a multi-RAT access mode of operation based on at least one of WTRU subscription, a service agreement of the WTRU, a roaming status of the WTRU, a selected access point name (APN), an Internet protocol (IP) flow class, a subscriber profile identity for the WTRU, requested quality of service, or a proximity indication indicating proximity to a cell supporting multi-RAT access mode. The WTRU may send a capability indication of support of multi-RAT access to a network, wherein the multi-RAT access mode is enabled based on the capability indication. A partial handover of bearers may be performed. In performing the handover, the target cell is determined based on a priority rule.