A wireless device receives configuration parameters, of a cell. The parameters indicates a first reference signal (RS) of a first transmission reception point (TRP) of the cell, a second RS of a second TRP of the cell, random access channel (RACH) resources of a RACH of the cell, and a power offset value for the first TRP. The wireless device adjusts a first received power value of the first RS by the power offset value. The wireless device transmits a preamble, via the RACH resources, to the first TRP in response to selecting the first RS for an RS. The wireless device transmits a preamble, via the RACH resources, to the second TRP in response to selecting the second RS for the RS.

A user equipment (UE) includes a transceiver configured to receive one or more random access (RA) configurations for a cell, and receive a contention free random access (CFRA) configuration related to a RA procedure. The UE further includes a processor operatively coupled to the transceiver. The processor is configured to select a bandwidth part (BWP) of the cell for performing the RA procedure, select a four step RA as a type for the RA procedure, determine whether the CFRA configuration for the RA procedure includes a parameter indicating a number of message 1 (Msg1) repetitions, and perform the RA procedure in the cell according to a result of the determination.

A user equipment (UE) includes a transceiver configured to receive one or more random access (RA) configurations for a cell, and receive a contention free random access (CFRA) configuration related to a RA procedure. The UE further includes a processor operatively coupled to the transceiver. The processor is configured to select a bandwidth part (BWP) of the cell for performing the RA procedure, select a four step RA as a type for the RA procedure, determine whether the CFRA configuration for the RA procedure includes a parameter indicating a number of message 1 (Msg1) repetitions, and perform the RA procedure in the cell according to a result of the determination.

In order to provide a transmission device and transmission method with which a response signal for random access preamble transmitted from a preamble transmission device is efficiently transmitted, setting unit in base station sets a first resource candidate group, which enables terminal capable of receiving a latch response transmitted by demodulation reference signal (DMRS) transmission to be selected, and a second resource candidate group, which enables terminal incapable of receiving a latch response transmitted by DMRS transmission but capable of receiving a latch response transmitted by cell-specific reference signal (CRS) transmission to be selected. Control unit selects DMRS transmission as the latch response transmission method when a resource in which latch preamble has been received is included in the first candidate group, but selects CRS transmission as the latch response transmission method when the resource is included in the second resource candidate group.

A configurable new radio (NR) RACH procedure that may be executed by a UE and a base station is disclosed. A configuration to determine, by a user equipment, a random access procedure timeline, from multiple random access procedure timelines that each define a different duration between one or more messages that are communicated in a random access procedure can be determined or transmitted. A random access preamble can be received from the UE based on the random access procedure timeline, and a response to the random access preamble can be determined or transmitted based on the random access procedure timeline.

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 described. Embodiments 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. Described aspects include a method of performing a random access procedure for a connected mode handover by a User Equipment (UE). The method includes transmitting a measurement report associated with a target gNB to a source gNB, wherein the UE performs measurement of the target gNB for one of SS blocks and Channel State Information Reference Signal (CSI-RS) as indicated to the UE by the source gNB.

The present disclosure relates to a communication method and 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 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. A method performed by a terminal in a communication system is provided. The method includes receiving, from a first base station, a first message including first information used for detection of consistent uplink listen before talk (LBT) failures for the first base station, receiving, from the first base station, a second message for a handover to a second base station, the second message including second information for a reconfiguration with sync, in case that third information configuring at least one dual active protocol stack (DAPS) bearer is included in the second message and an indication of the consistent uplink LBT failures for the first base station is identified based on the first information while performing a procedure associated with the handover, suspending data communication of all data radio bearers (DRBs) associated with the first base station.

A user equipment (UE) detects a beam failure for a first beam pair being used for full duplex communication with a base station. The UE indicates the second beam pair for the full duplex communication to the base station to the base station. The UE applies the second beam pair for full duplex communication a period of time after indicating the second beam pair to the base station. The base station receives a beam failure recovery request (BFRQ) from the UE, the BFRQ indicating a beam failure for a first beam pair for full duplex communication at the UE. The base station receives an indication of a second beam pair selected by the UE for the full duplex communication at the UE that the UE will apply a period of time after the indication.

Methods and apparatuses for multiple concurrent random access procedures. A method for operating a user equipment includes receiving first configuration for a random access (RA) procedure, initiating a first RA procedure on a cell based on the first configuration, and initiating a second RA procedure on the cell prior to completion of the first RA procedure. A method for a base station includes transmitting a first random access response (RAR) and a second RAR. The first RAR includes a first temporary cell radio network temporary identifier (TC-RNTI) and a first uplink grant. The second RAR includes a second TC-RNTI and a second uplink grant. The method further includes receiving a first PUSCH scheduled by the first uplink grant and a second PUSCH scheduled by the second uplink grant. The first PUSCH includes the first TC-RNTI. The second PUSCH includes only the first TC-RNTI or both the first and second TC-RNTIs.

A user equipment (UE) is configured to determine that half-duplex frequency division duplex (HD-FDD) is enabled by a network with which the UE is communicating, identify a collision between a cell-specific downlink reception and a cell-specific uplink transmission and implement a HD-FDD collision handling technique. A UE may also be configured to determine that half-duplex frequency division duplex (HD-FDD) is enabled by a network with which the UE is communicating, perform a first cell-specific uplink transmission at a first time and perform a first cell-specific downlink reception at a second time, wherein a guard period represents a time duration between the first time and the second time during which the UE is not to perform a second different cell-specific uplink transmission or a second different cell-specific downlink reception.