Abstract: A method performed by a terminal of a 2-step random access procedure in a wireless communication system is provided. The method includes transmitting a message A (MsgA) for the 2-step random access procedure, starting a window at a symbol for receiving a physical downlink control channel (PDCCH) of a message B (MsgB), wherein the symbol is identified based on whether a physical uplink shared channel (PUSCH) is transmitted in the MsgA with a physical random access channel (PRACH), and detecting downlink control information on the PDCCH of the MsgB during the window.

Abstract: A method, performed by a user equipment (UE), of transmitting uplink data is provided. The method includes receiving, from a base station, configuration information for an uplink resource; determining a Hybrid Automatic Repeat Request (HARQ) process based on the configuration information; starting a configured grant timer (CGT) and a configured grant retransmission timer (CGRT) when uplink data corresponding to the HARQ process is transmitted; restarting the CGRT when the uplink data corresponding to the HARQ process is retransmitted; receiving, from the base station, downlink feedback information (DFI); and stopping the CGT and the CGRT based on the DFI indicating whether the base station received the uplink data.

Abstract: A communication method and system for converging a fifth generation (5G) communication system for supporting higher data rates beyond a fourth generation (4G) system with a technology for internet of things (IoT) are provided. The communication method and system includes 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. In accordance with an aspect of the disclosure, a method and an apparatus for transmitting a random access preamble in a wireless communication system are provided. In accordance with another aspect of the disclosure, a method and an apparatus for requesting and transmitting system information are provided.

Abstract: The disclosure relates to a 5th generation (5G) or 6th generation (6G) communication system for supporting a higher data transmission rate. A method performed by a user equipment (UE) in a wireless communication system is provided. The method includes receiving configuration information regarding a discontinuous reception (DRX) from a base station, starting a first timer based on the configuration information, and monitoring a physical downlink control channel (PDCCH) based on the first timer, wherein the configuration information includes a first timer value for a first subcarrier spacing (SCS) group and a first timer value for a second SCS group.

Abstract: A method performed by a user equipment (UE) in a wireless communication system includes receiving, from a base station (BS), physical downlink shared channel (PDSCH) configuration information including a list of transmission configuration indicator (TCI) states, receiving, from the BS, a PDSCH media access control element (MAC CE) including information indicating activation of at least one TCI state in the list, identifying whether the PDSCH MAC CE is a MAC CE capable of indicating two or more TCI states for one TCI codepoint, receiving, from the BS, downlink control information (DCI) including information indicating a TCI codepoint, and receiving, from the BS, data via a PDSCH based on the information indicating activation of the at least one TCI state, a result of the identifying, and the information indicating the TCI codepoint.

Abstract: The disclosure relates to a communication method and a system therefor, wherein the method converges Internet of things (IoT) technology and a fifth generation (5G) communication system for supporting a high data transmission rate beyond that of a fourth generation (4G) system, and may be applied to intelligent services based on 5G communication and IoT-related technology. Herein, a method by a terminal includes receiving, from a base station, logical channel configuration information including first information on an allowed configured grant for each of at least one logical channel and second information on a priority for each of the at least one logical channel, identifying that an uplink grant for a first configured grant and an uplink grant for a second configured grant are overlapped, and transmitting, to the base station, the first configured grant having a priority that is higher than a priority of the second configured grant, based on the first information and the second information.

Abstract: 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) are provided. The communication method and system include 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. A method of a user equipment (UE) for performing a vehicle-to-everything (V2X) sidelink communication is provided.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a terminal in a wireless communication system is provided. The method includes receiving a radio resource control (RRC) release message including suspend configuration information and configured grant-small data transmission (CG-SDT) configuration information, starting a timer related to a time alignment (TA) for CG-SDT based on the CG-SDT configuration information, identifying that criteria for a small data transmission (SDT) procedure is met, and in case that any configured grant (CG) occasion corresponding to a synchronization signal block (SSB) with a reference signal received strength (RSRP) above a threshold value is not available while the timer related to the TA for CG-SDT is running, and criteria for a random access-small data transmission (RA-SDT) procedure is met, performing the RA-SDT procedure.

Abstract: A method performed by a user equipment (UE) in a wireless communication system is provided. The method includes receiving, from a base station (BS) via a radio resource control (RRC) message, configuration information including information on a first beam failure detection (BFD)-reference signal (RS) set and information on a second BFD-RS set, wherein each of the first BFD-RS set and the second BFD-RS set includes a plurality of BFD-RS resources, receiving, from the BS, medium access control (MAC) control element (CE) including information for indicating a first at least one BFD-RS resource included in the first BFD-RS set and a second at least one BFD-RS resource included in the second BFD-RS set, and identifying one or more activated BFD-RSs based on the MAC CE.

Abstract: The disclosure relates to a 5th-generation (5G) or 6th-generation (6G) communication system for supporting a higher data transmission rate. A method for monitoring paging by a user equipment (UE) in a wireless communication system is provided. The method includes receiving, from a cell, system information including paging early indication (PEI) configuration, identifying whether a parameter is configured via the system information, wherein the parameter indicates that the UE monitors PEI only if the latest received RRC release message is from the cell, in case that the parameter is configured, identifying whether an radio resource control (RRC) release message is received most recently in the cell, and in case that the parameter is configured and the RRC release message is received most recently in the cell, monitoring PEI in the cell.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Specifically, the present disclosure provides method and apparatus for paging early indication monitoring based on UE type including: receiving, from a base station, SIB1; and, in case that the SIB1 includes first information on a first initial downlink BWP for the reduced capability terminal and second information on a first PEI configuration for the reduced capability terminal, monitoring a PEI in a PDCCH of the first initial downlink BWP for the reduced capability terminal based on the first PEI configuration for the reduced capability terminal.

Abstract: A system and method for use in a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE) is disclosed. The method for performing a discovery transmission on a second carrier by a user equipment (UE) served by a primary cell (PCell) on a first carrier, includes receiving, from a base station, a signaling indicating that the UE read discovery resource configuration for the second carrier on the second carrier or that the UE should request the discovery resource configuration for the second carrier from the base station for acquiring the discovery resource configuration for the second carrier. The method also includes acquiring the discovery resource configuration based on the signaling.

Abstract: Disclosed is a 5G or pre-5G communication system for supporting a data transmission rate higher than that of a 4G communication system such as long term evolution (LTE). Disclosed is a method by which a terminal transmits a buffer status report (BSR) in a communication system, including allocating an uplink resource from a base station; comparing the number of padding bits with a value obtained by summing the size of the BSR and the size of a sub-header of the BSR; and transmitting, to the base station according to the comparison result, the BSR including information indicating the presence or absence of a field representing a buffer size for at least one logical channel group (LCG).

Abstract: A method and system for acquiring mmWave carrier in a wireless communication network is disclosed. In one embodiment, an MS acquires a low frequency carrier and then acquires the high frequency carrier. Since the low frequency carrier and the high frequency carrier are transmitted by same BS, the BS provides assistance information on the acquired low frequency carrier to the MS to acquire a synchronization signal which is transmitted on a high frequency carrier using beamforming. The assistance information includes synchronization signal beam time slots, synchronization signal beams which the MS needs to search, beam ID and so on. Based on the assistance information, the MS monitors the high frequency carrier to search and acquire the synchronization beam signal transmitted on the high frequency carrier. The MS determines the beam ID of the received synchronization beam signal and reports to the BS on the low frequency carrier.

Abstract: Embodiments herein provide a method and system for performing a bearer type change of a plurality of radio bearers configured for a User Equipment (UE). The proposed method includes changing the bearer type of specific bearer by the network. Further, the proposed method includes checking any changes in keys or PDCP termination point or PDCP version change. Furthermore, the proposed method includes notifying the UE to change the bearer type either through reconfiguration procedure without handover or SN change procedure or reconfiguration procedure with handover or SN change procedure. The network indicates one or more operations to the UE for performing the bearer type change.

Abstract: The disclosure relates to a 5th generation (5G) or 6th generation (6G) communication system for supporting a higher data transmission rate. A method performed by user equipment (UE) in a wireless communication system is provided. The method includes receiving, from a base station (BS), a unicast related downlink signal, in case that a unicast discontinuous reception (DRX) and a multicast DRX are configured, stopping a unicast DRX retransmission timer based on the received unicast related downlink signal, and stopping a multicast DRX retransmission timer based on the received unicast related downlink signal.

Abstract: A communication method and system for converging a fifth generation (5G) communication system for supporting higher data rates beyond a fourth generation (4G) system with a technology for Internet of things (IoT) are provided. The communication method and system 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. A method of a user equipment (UE) for performing a random access (RA) procedure is provided. The method includes transmitting a first message including a RA preamble and a UE identifier (ID) to a base station (BS), and receiving a second message including a sequence index of the RA preamble from the BS.

Abstract: The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The present disclosure provides method and apparatus for physical downlink control channel (PDCCH) monitoring. The method comprises receiving, from a base station, downlink control information (DCI) including an indication indicating skipping of PDCCH monitoring for a duration; in case that a scheduling request (SR) is triggered and not canceled, identifying whether the SR is triggered for a buffer status report (BSR); determining at least one serving cell, based on the identified result; and cancelling the skipping of PDCCH monitoring on the at least one serving cell.

Abstract: The disclosure provides a semi-persistent scheduling (SPS) operation method for multicast and broadcast service (MBS) reception by a user equipment (UE), the operation method including: receiving a message indicating configuration and activation of MBS SPS from a base station (BS); storing resource allocation information and hybrid automatic request (HARQ) information for the MBS SPS in a media access control (MAC) layer; initializing or re-initializing a resource configured for the MBS SPS in the MAC layer; and transmitting, to the BS, confirmation message of the activation and configuration of the MBS SPS.

Abstract: 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. Embodiments herein disclose a UE for managing a data communication in a wireless communication network. The UE includes a DRB management unit configured to determine a DRB for transmitting a packet based on QoS flow identifier and a PDU session associated with the packet and mapping of the QoS flow identifiers to the DRBs for each established PDU session.