Provided are a method and apparatus for controlling the mobility of a terminal in a non-terrestrial network. The method may include receiving handover request information for a handover of the terminal, from a source base station or a core network entity; reserving a radio resource for the handover of the terminal on the basis of the handover request information; and determining whether or not the reserved radio resource is to be released, by means of serving cell availability time information included in the handover request information.

A first base station includes: a memory storing a program; and one or more processors configured to execute the program to: receive, from a communication apparatus, a first radio resource control, RRC, message including information indicating that the communication apparatus has path information available; transmit, to the communication apparatus, a second RRC message including information for requesting transmission of the path information; determine whether to perform a handover from the first base station to a second base station for the communication apparatus; receive in response to the transmission of the second RRC message including the information for requesting transmission of the path information, from the communication apparatus, a third RRC message including the path information in a case where the communication apparatus has the path information available; and include the path information in a HandoverPreparationInformation message in a case where the handover is determined to be performed.

A distributed antenna and backhaul system provide network connectivity for a small cell deployment. Rather than building new structures, and installing additional fiber and cable, embodiments described herein disclose using high-bandwidth, millimeter-wave communications and existing power line infrastructure. Above ground backhaul connections via power lines and line-of-sight millimeter-wave band signals as well as underground backhaul connections via buried electrical conduits can provide connectivity to the distributed base stations. An overhead millimeter-wave system can also be used to provide backhaul connectivity. Modules can be placed onto existing infrastructure, such as streetlights and utility poles, and the modules can contain base stations and antennas to transmit the millimeter-waves to and from other modules.

A device to deliver data to a network may be identified. The data to be delivered may be identified. Information associated with a device's probability of travelling to the network may be identified. Based on that information, the data to be delivered may be transferred to the device.

A target AMF receives a first message requesting a handover of a wireless device from a source AMF. The first message comprises: parameter(s) of an SMF, and second PDU session identifier(s) identifying second PDU session(s) established between a UPF and the wireless device. The target AMF selects a target SMF different from the source SMF. The target AMF sends a second message to the target SMF requesting creation of first PDU session(s) between the UPF and the wireless device. The second message comprises first PDU session identifier(s) identifying the first PDU session(s). The target SMF sends a third message to the UPF requesting establishment of a user plane session for first PDU session(s). The third message comprises an indication that the source SMF is relocated. The target SMF receives a fourth message from the UPF confirming the establishment of the user plane session.

A method for supporting a vehicle communication (connected car or vehicle to everything (V2X)) service in a wireless communication system and an apparatus thereof are provided. The method includes receiving threshold information for reporting a channel busy ratio (CBR), measuring the CBR for a resource pool, identifying whether a reporting condition is satisfied by comparing the measured CBR with the threshold information, and reporting the measured CBR if the reporting condition is satisfied. The present disclosure relates to a communication technique for converging a fifth generation (5G) communication system for supporting higher data rates beyond a fourth generation (4G) system with an Internet of things (IoT) technology, and may be applied to intelligent services based on the 5G communication technology and the IoT-related technology.

Systems, methods, and processing nodes minimize interference in a wireless network. Minimizing interference includes determining that an angle between a first formed beam directed towards a wireless device and a relay signal directed towards a relay node is equal to or is less than a threshold angle. The wireless device can operate in a first area of network coverage, and the relay node operates in a second area of the network coverage. The first formed beam can interfere with the relay node upon the angle being equal to or less than the threshold angle. Minimizing interference also includes switching a connection of the relay node from a first access node to a second access node.

An electronic device may include: a communication circuit configured to support cellular communication through a terrestrial network and a non-terrestrial network, a memory configured to store mapping data obtained by mapping identification information of the non-terrestrial network and a service supported by the non-terrestrial network, and at least one communication processor. One or more of the at least one communication processor may be configured to: search for a cell corresponding to another network within a specified distance with reference to a location of the electronic device, based on the non-terrestrial network having a highest priority with respect to communication connection, determine, based on another network having a lower priority than the non-terrestrial network being found, whether an emergency call is supported on another network having the lower priority, and perform, based on the emergency call being supported on another network having the lower priority, camp-on on another network having the lower priority, wherein the camp-on includes monitoring, by the electronic device, system information and paging information in a newly selected cell based on cell reselection.

The present technique provides a first terminal device for exchanging signals with a wireless telecommunications network and a plurality of second terminal devices, the first terminal device configured to exchange signals with each of the plurality of second terminal devices, when the first terminal device provides a local cell for providing wireless connectivity for the plurality of second terminal devices, and to exchange signals with one or more infrastructure equipment of the wireless telecommunications network, and receive, from each of the plurality of second terminal devices served by the first terminal device when providing the local cell, suitability information indicative of the suitability of each of one or more other terminal devices or infrastructure equipment of the wireless telecommunications network to exchange signals with that second terminal device to provide for that second terminal devices another local cell.

A slice management system is a system managing a slice that is a virtual network generated on a network infrastructure and includes a DNS storing slice information relating to a slice to which a UE can be connected for each area and determines whether or not the UE can, in a moving destination area that is a destination of movement of the UE between areas, be connected to a slice to which the UE was connected in a moving source area by referring to the DNS. In a case in which it is determined that the connection cannot be made, the slice management system generates the slice in the moving destination area such that the UE can be connected to the slice in the moving destination area.