A target RAN node (3) receives, from a core network (5), a message requesting a handover of a radio terminal (1) from a bearer-based network to a bearer-less network. This handover request message includes flow information related to at least one session to be established in the bearer-less network in order to transfer at least one packet flow of the radio terminal (1). The target RAN node (3) transmits, to the core network (5), a handover acknowledge response message containing a transparent container that includes a radio resource configuration information derived from the flow information and is to be forwarded to a source RAN node associated (2) through the core network (5). It is thus, for example, possible to appropriately configuring an AS layer of a target RAT in an inter-RAT handover.

The present disclosure relates to a pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4.sup.th-Generation (4G) communication system such as Long Term Evolution (LTE).

A handover method for a terminal according to one embodiment of the present disclosure may include: receiving, from a source cell, a message including information on one or more target cells for performing a fast handover; and performing a fast handover by reusing a radio bearer based on the received information.

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.

There is provided a method and apparatus for data transport control between wireless network systems, the method comprises: determining, by a first node, whether a predetermined condition is satisfied; and transmitting, by the first node, at least one of data transport command information and user equipment access information when the predetermined condition is satisfied.

A mobile communication system includes at least one mobile terminal that can access a circuit switched network and a wireless broadband network, and a node apparatus. The node apparatus integrates, into one physical node, a first gateway node interconnecting the circuit switched network and an IP network and a second gateway node interconnecting a core network accommodating the wireless broadband network and an external packet data network. When the mobile terminal performs handover from one of the circuit switched network and the wireless broadband network to the other network, one of the first gateway node and the second gateway node, being a handover-destination node, allocates call connection path node identification information managed by the other gateway note being a handover-source node, as new call connection path node identification information of the handover-destination node.

Methods, systems, and devices for wireless communication are described. A method may include determining to modify current-allowed network slices used by a user equipment (UE) based on a network-trigger; identifying new-allowed network slices for the UE based on the determining; selecting a target access and mobility management function (AMF) based on the new-allowed network slices, the target AMF is accessible by the source AMF; and triggering an AMF relocation based on the selecting.

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.

Communication network architectures, systems and methods for supporting a network of mobile nodes. As a non-limiting example, various aspects of this disclosure provide communication network architectures, systems, and methods for supporting a dynamically configurable communication network comprising a complex array of both static and moving communication nodes (e.g., the Internet of moving things).

A WTRU (102) may receive updated assistance information for network slice selection and/or reselection (410). The WTRU may apply local policies to determine when to use the updated assistance information to access a network slice (440). The WTRU may determine whether to contact an existing network slice function (470) or a new network slice function (460) to establish a connection to a network slice. Based on the determination, the WTRU may transmit different information to the network. The network slice selection and/or reselection may be initiated by a WTRU or by a network.

Aspects of the subject disclosure may include, for example, accessing a network service by a first portion of network operating within a first wireless spectrum, wherein the network service includes control and data forwarding operations of the first portion of the network that are separate and configured to facilitate forwarding of user data via the data forwarding operations. A second network is identified operating within a second wireless spectrum. A redirection is facilitated of the forwarding of the user data via the data forwarding operations to the second portion of the network responsive to a request initiated via the control operations. The request is made without interrupting the forwarding of the user data. Other embodiments are disclosed.

A multi-link configuration method, a base station, and a user equipment, where the UE generates uplink information and sends the uplink information to the base station. The base station configures a first set or a second set for the UE based on the uplink information. In this process, the transmission point included in the first set is a candidate transmission point, and the transmission point included in the second set establishes a plurality of links to a user, and is a transmission point that actually transmits data to the UE. When a signal of the transmission point included in the second set is weak or interrupted, a transmission point with good quality is selected from the first set and added to the second set to reduce a quantity of times of link interruption and service interruption.