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. According to the embodiments of the present disclosure, various methods by which the 5G system is able to dynamically determine the appropriate UP path to exchange interactive service data either via the ProSe Communication path (direct) or via the 5GC path are provided. Also, according to the embodiments of the present disclosure, a method of addressing shortcomings in a discovery procedure related to the formation and management of such NCIS groups is provided.

A user equipment (UE) and a method for sidelink failure management are provided. The method includes receiving, from a source cell, a first message including a sidelink Radio Resource Control (RRC) configuration associated with a target cell; determining that a sidelink failure event associated with an associated sidelink destination UE occurs; and transmitting a sidelink failure report indicating the sidelink failure event to the target cell after performing a handover procedure to switch from the source cell to the target cell.

Embodiments relate to a system, a vehicle, apparatuses, methods, and computer programs for user equipment, UE, and a network component in a mobile communication system. The method (10) for UE (100) in the mobile communication system (400) comprises measuring (12) a radio channel quality based on a signal transmitted by a communication partner (102) in the mobile communication system (400) and determining (14) information related to a normalized measurement result based on the measured radio channel quality. The method (10) further comprises transmitting (16) the information related to the normalized measurement result to a network component (200) of the mobile communication system (400).

A communication method and apparatus, to improve SL DRX configuration accuracy. A first communication device receives first information from a second communication device, and send the second communication device an SL DRX configuration corresponding to an SL connection between the first communication device and the second communication device, and the second communication device receives SL transmission from the first communication device based on the SL DRX configuration. In this way, the SL DRX configuration better satisfies a condition of transmission between the first communication device and the second communication device, and energy saving effect of a receive end of the SL connection is enhanced. The first information is used to determine the SL DRX configuration.

A bandwidth part activation or deactivation method includes: determining to activate or deactivate an SL BWP according to one of following: configuration information of a Uu BWP and configuration information of the SL BWP; or receipt of an activation or deactivation indication sent by a network side device or a peer terminal, or receipt of activation or deactivation confirmation information sent by the network side device or the peer terminal, where the activation or deactivation confirmation information is feedback information of an activation or deactivation request sent by the network side device or the peer terminal for the terminal.

The present disclosure relates to transmission prioritization in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system comprises: configuring a threshold; creating a media access control (MAC) protocol data unit (MAC PDU) for sidelink comprising a MAC control element (CE); setting a priority value to the MAC CE; identifying a transmission of the MAC PDU for sidelink and an uplink transmission to be performed; determining that the transmission of the MAC PDU for sidelink and the uplink transmission are not able to be performed simultaneously; determining that the priority value of the MAC CE is lower than the threshold; prioritizing the transmission of the MAC PDU for sidelink over the uplink transmission; and performing the transmission of the MAC PDU for sidelink that is prioritized over the UL transmission.

An operation method of a first terminal in a communication system is provided. The method includes transmitting first SCI to a second terminal, the first SCI including one or more information elements among information indicating time resource(s) for sidelink communication, information indicating frequency resource(s) for the sidelink communication, information indicating a periodicity of physical resources for the sidelink communication, and information indicating an MCS for the sidelink communication. Second SCI is transmitted to the second terminal, the second SCI including information for an HARQ feedback operation and information indicating an NDI. The method further includes performing the sidelink communication with the second terminal based on the first SCI and the second SCI associated with the first SCI.

Procedures, methods, architectures, apparatuses, systems, devices, and computer program products directed to improved service continuity in connection with wireless transmit/receive devices not remaining within proximity/range of each other to continue device-to-device (D2D) communications are provided.

A configuration to enable a UE to monitor the state of the connection with a peer UE in a sidelink communication. The apparatus establishes one or more unicast links with a second UE. The apparatus changes a connection state with the second UE from a sidelink disconnected state to a sidelink connected state based on an establishment of a first of the one or more unicast links. The apparatus changes the connection state with the second UE from the sidelink connected state to the sidelink disconnected state when each of the one or more unicast links with the second UE is released or when a configured timer expires.

A configuration to enable a UE to monitor the state of the connection with a peer UE in a sidelink communication. The apparatus establishes one or more unicast links with a second UE. The apparatus changes a connection state with the second UE from a sidelink disconnected state to a sidelink connected state based on an establishment of a first of the one or more unicast links. The apparatus changes the connection state with the second UE from the sidelink connected state to the sidelink disconnected state when each of the one or more unicast links with the second UE is released or when a configured timer expires.