Methods of communicating in a wireless telecommunications system comprising a communications device, a master cell group comprising one or more infrastructure equipment of a first type and a secondary cell group comprising one or more infrastructure equipment of a second type, the communications device being in a coverage area of one of the infrastructure equipment of the first type and a coverage area of at least one of the infrastructure equipment of the second type, wherein the communications device is configured to transmit signals to and receive signals from the infrastructure equipment of the first type in accordance with a first communications protocol and to transmit signals to and receive signals from the at least one infrastructure equipment of the second type in accordance with a second communications protocol, the second communications protocol being different to the first communications protocol. A method according to a first example embodiment of the present disclosure comprises establishing a measurement of radio conditions associated with a first communications path between the communications device and the infrastructure equipment of the first type, determining that the first communications path is not appropriate for use by the communications device, transmitting a failure message from the communications device to one of the infrastructure equipment of the second type via a second communications path, the failure message providing information regarding the determination that the first communications path is not appropriate for use by the communications device, receiving at the communications device a signal comprising a reconfiguration message from the one of the infrastructure equipment of the second type via the second communications path, and establishing, using the reconfiguration message, signals to be transmitted by the communications device and signals to be received by the communications device.

A second RAN node (2) associated with a second RAT sends a radio resource configuration of the second RAT to a radio terminal (3) via a first RAN node (1) associated with a first RAT. The radio resource configuration explicitly or implicitly indicates at least one numerology that is included in multiple numerologies supported by the second RAT and is different from a reference numerology. It is thus, for example, possible to allow a radio terminal to be configured with a numerology of a cell served by a secondary gNB or a target gNB in Inter-RAT Dual Connectivity between E-UTRA and NR and in a handover from E-UTRA to NR.

A second RAN node (2) associated with a second RAT sends a radio resource configuration of the second RAT to a radio terminal (3) via a first RAN node (1) associated with a first RAT. The radio resource configuration explicitly or implicitly indicates at least one numerology that is included in multiple numerologies supported by the second RAT and is different from a reference numerology. It is thus, for example, possible to allow a radio terminal to be configured with a numerology of a cell served by a secondary gNB or a target gNB in Inter-RAT Dual Connectivity between E-UTRA and NR and in a handover from E-UTRA to NR.

Various embodiments provide a communication method for an electronic device comprising a processor, a first modem for a first communication network, and a second modem for a second communication network, the communication method comprising the steps of: determining to operate in a second modem-dedicated mode for communication with the second communication network without being linked to the first modem, in an interworking mode for communication with the second communication network by linking the second modem and the first modem; turning off the first modem and rebooting the second modem; and setting a data path between the rebooted second modem and the processor. In addition, various other embodiments are possible.

Provided are a method by which a terminal performs mobility in a wireless communication system and a device supporting same. The method may comprise the steps of: establishing a connection with a master eNB (MeNB); setting a mobility rule for a cell list associated with a secondary eNB (SeNB) and cells associated with the SeNB; on the basis of the mobility rule, selecting at least one cell from the cells included in the cell list; and notifying the SeNB of the selected at least one cell.

When multiple user equipment devices (UEs) are served with dual connectivity, with each UE being served by a first access node on a respective first connection according to a first RAT and all of the UE's respective first connections having a first carrier as anchor carrier for the dual connectivity, the first access node will detect that load on the first carrier is threshold high. And in response, the first access node will (i) select one or more of the UEs based on each of the selected one or more UEs being within uplink range of the first access node on a second carrier higher in frequency than the first carrier and (ii) for each selected UE, reconfigure the UE's respective first connection from having the first carrier as the anchor carrier for the dual connectivity to instead having the second carrier as the anchor carrier for dual connectivity.

The disclosure relates to a communication method and a system for converging a 5.sup.th-Generation (5G) communication system for supporting higher data rates beyond a 4.sup.th-Generation (4G) system with a technology for Internet of Things (IoT). The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as a smart home, a smart building, a smart city, a smart car, a connected car, health care, digital education, a smart retail, security and safety services. A method performed by a terminal in a wireless communication system is provided. The method includes receiving a higher signal including a plurality of physical uplink control channel (PUCCH) resource information, determining a PUCCH format and resource for a hybrid automatic repeat request (HARQ) feedback information corresponding to a physical downlink shared channel (PDSCH), and transmitting the HARQ feedback information based on the determined PUCCH format and the resource.

Disclosed is a method for managing new radio (NR) communication in an electronic device, including receiving, from a base station, configuration information for an event B1-NR measurement, indicating a trigger threshold value for triggering the electronic device to transmit a B1-NR measurement report, periodically monitoring at least one condition of the electronic device, upon receiving the configuration information, and restricting at least one of NR capability and NR measurements of the electronic device, when the monitored at least one condition of the electronic device is satisfied

Methods, systems, and storage media are described for Load Balancing Optimization (LBO) and Mobility Robustness Optimization (MRO) for fifth generation (5G) systems. In particular, some embodiments may be directed intra-radio access technology (RAT) energy saving scenarios while other embodiments may be directed to and inter-RAT energy saving scenarios. Other embodiments may be described and/or claimed.

The present disclosure relates to a communication technique for converging IoT technology with a 5G communication system for supporting a higher data transfer rate beyond a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (e.g., smart homes, smart buildings, smart cities, smart or connected cars, health care, digital education, retail business, and services associated with security and safety) on the basis of 5G communication technology and IoT-related technology.