Communication system including a data transmission controller, at least a transmitter and at least a receiver wherein the transmitter is configured to transmit a first data portion to the receiver by use of a resource portion having a bandwidth and a plurality of time frames in a manner to further increase a redundancy of the first data portion to be transmitted from time frame to time frame of the plurality of time frames, wherein the receiver is configured to analyze the received first data portion and its redundancy to determine a correctly and/or completely and/or sufficiently received first data portion or incorrectly and/or incompletely and/or insufficiently received first data portion and to transmit an ACK signal to the transmitter using the resource portion, when determining the correctly and/or completely and/or sufficiently received first data portion.

The present disclosure provides a method for transmitting uplink control information, a method for receiving uplink control information, a method for configuring a downlink HARQ feedback function, a terminal and a base station. The method for transmitting uplink control information comprises: transmitting uplink control information to a base station, wherein the uplink control information comprises at least one of decoding statistical information for downlink transmission, suggestion information for downlink scheduling, or channel quality related information.

Certain aspects of the present disclosure provide techniques for cross layer improvement with radio link control feedback on physical layer. In aspects, a method performed by a user equipment (UE) includes receiving a radio link control (RLC) packet; and transmitting, in response to the RLC packet, an RLC acknowledgment (ACK) or an RLC negative acknowledgment (NACK) on a pre-configured uplink resource associated with the RLC packet.

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 first terminal in a communication system is provided. The method includes transmitting data of a physical side link shared channel (PSSCH) and sidelink control information (SCI) associated with the data, and receiving, from a second terminal, a hybrid automatic repeat request (HARQ) feedback for the data, wherein the HARQ feedback is performed based on a distance between the first terminal and the second terminal, in case that the SCI includes location information of the first terminal.

One aspect of the present invention discloses a terminal of a wireless communication system. The terminal comprises a communication module and a processor for controlling the communication module, wherein the processor generates a hybrid automatic repeat request (HARQ)-ACK codebook including one or more bits indicating whether reception of a channel or signal is successful, and transmits the HARQ-ACK codebook to a base station of the wireless communication system, wherein the HARQ-ACK codebook is generated on the basis of a slot corresponding to a value of an HARQ-ACK feedback timing parameter (K1) set in a sub-slot level, and each of bits configuring the HARQ-ACK codebook corresponds to at least one sub-slot form among a plurality of sub-slots included in the slot.

A wireless device receives a DCI indicating a first priority of a transport block and a hybrid automatic repeat request (HARQ) feedback timing of a HARQ feedback of the transport block. The wireless device switches, after receiving the DCI and before the HARQ feedback timing, from a first bandwidth part to a second bandwidth part as an active bandwidth part. The wireless device transmits or drops the HARQ feedback based on whether or not the first priority of the transport block comprises a first value.

A beam indication method includes: receiving first DCI or a first MAC CE. The first DCI or the first MAC CE is used to indicate at least one piece of common beam information.

Provided is a method by which a first apparatus performs wireless communication and an apparatus for supporting the method. The method comprises the steps of: receiving, from a base station, information related to a sidelink (SL) bandwidth part (BWP); receiving, from the base station, information related to an uplink (UL) BWP; receiving, from the base station, information related to an SL resource and information related to a UL resource for reporting a hybrid automatic repeat request (HARQ) feedback; transmitting, on the basis of the SL resource within the SL BWP, data in which the HARQ feedback has been disabled to a second apparatus through a physical sidelink shared channel (PSSCH); generating an ACK related to the transmission of the data in which the HARQ feedback has been disabled; and transmitting, to the base station, the ACK on the basis of the UL resource within the UL BWP.

Provided are a repetitive transmission method for ultra-low latency and highly-reliable communication in a wireless communication system, and an apparatus therefor. A method for transmitting data by a terminal according to an embodiment of the present invention comprises the steps of: receiving information on the repetition number of transmission for a physical uplink shared channel (PUSCH) from a base station; receiving, from the base station, information on frequency hopping applied to the the PUSCH repetition configuring the the PUSCH repetition; determining a frequency resource for the PUSCH repetition based on the information on the frequency hopping; and performing the the PUSCH repetition.

A user equipment generates an HARQ-ACK codebook comprising HARQ-ACK bits for semi-persistent scheduling (SPS) physical downlink shared channels (PDSCHs) based on multiple SPS configurations, and transmits the HARQ-ACK codebook. In the HARQ-ACK codebook, with respect to an SPS configuration index and a serving cell index, an HARQ-ACK bit for an SPS PDSCH in a slot of a lower slot index precedes an HARQ-ACK bit for an SPS PDSCH in a slot of a higher slot index, and with respect to each serving cell index, an HARQ-ACK bit for an SPS PDSCH based on an SPS configuration having a lower SPS configuration index precedes an HARQ-ACK bit for an SPS PDSCH based on an SPS configuration having a higher SPS configuration index.