A method for performing wireless communication by a first apparatus and an apparatus for supporting same are provided. The method may comprise the steps of: receiving a physical sidelink control channel (PSCCH) from a second apparatus; receiving a physical sidelink shared channel (PSSCH) related to the PSCCH from the second apparatus; determining a physical sidelink feedback channel (PSFCH) resource related to the PSSCH, on the basis of a slot and sub-channel related to the PSSCH; and obtaining a channel busy ratio (CBR) value related to PSFCH transmission on the PSFCH resource. The CBR value may be obtained on the basis of (i) a first slot before a first offset from a slot that received the PSSCH related to the PSFCH resource, and (ii) measurement in a time section between the first slot and a second slot before a second offset.

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 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 shortened transmission time interval (TTI)-based downlink (DL) and uplink (UL) transmission method and apparatus for use in a wireless communication system.

The present disclosure relates to a user equipment, a network node and respective communication methods for a user equipment and a network node. A according to some embodiments, a user equipment comprises a transceiver which, in operation, receives data on a plurality of downlink shared channels, the data received on the plurality of downlink shared channels being respectively the same data, and circuitry which, in operation, decodes the data, generates an indicator which indicates whether or not the data has been successfully decoded using the plurality of downlink shared channels. The transceiver, in operation, transmits the indicator on at least one of a plurality of uplink control channels associated respectively with the plurality of downlink shared channels.

The present disclosure is related to a method and apparatus for wireless communication. A method performed by a user equipment, comprising: determining a first control resource set based on configuration information associated with a second control resource set; and determining a first search space based on configuration information associated with a second search space, wherein the first control resource set is associated with the first search space and the second control resource set is associated with the second search space.

Some demonstrative embodiments may include an apparatus including a Hybrid Automatic Repeat Request (HARQ) buffer configured to buffer compressed Log Likelihood Ratio (LLR) values corresponding to an unsuccessfully-decoded transmission of a data block, a bit size of the HARQ buffer is equal to or less than 2.5 times a supported HARQ receive (Rx) size, which is to be reported to a transmitter of the data block; and a decoder configured to decode a retransmission of the data block according to the HARQ scheme based on combined LLR values, which are based on the compressed LLR values and on LLR values corresponding the retransmission of the data block, wherein a HARQ gain of decoding the retransmission of the data block based on the combined LLR values is at least 2 Decibel (dB) for an Additive White Gaussian Noise (AWGN) channel.

Disclosed are a communication scheme and a system thereof for converging IoT technology and a 5G communication system for supporting a higher data transmission rate beyond that of a 4G system. The disclosure can be applied to intelligent services (for example, services related to smart homes, smart buildings, smart cities, smart cars, connected cars, health care, digital education, retail business, security, and safety) based on the 5G communication technology and the IoT-related technology. Further, disclosed is a 5G or 6G communication system for supporting a higher data transmission rate than a post-4G communication system such as LTE.

A method for transmitting or receiving a frame by a STA in a WLAN according to one embodiment of the present invention may comprise the steps of: receiving a first frame including a PHY header and an A-PHDU obtained by aggregating PHDUs which are PHY data transmission units for a HARQ process; decoding at least one PHDU for the STA in the A-PHDU on the basis of the PHY header; and transmitting a second frame including ACK/NACK information on each of the at least one PHDU for the STA, according to a decoding result, wherein a CRC is individually provided to each of the PHDUs included in the A-PHDU, and the STA transmits a NACK through the second frame in relation to a particular PHDU for which a CRC failure has occurred during the decoding of the particular PHDU.

Apparatuses, methods, and systems are disclosed for sidelink HARQ operation. One apparatus includes a memory coupled to a processor, where the processor is configured to cause the second apparatus to receive a SL grant for a SL transmission using SL resources, the SL grant indicating a first HARQ process identified by a first HARQ process identifier, and to select a second SL HARQ process identified by a second SL HARQ process identifier for the SL transmission using the SL resources. The processor is configured to cause the second apparatus to transmit SCI containing the second SL HARQ process identifier and to perform the SL transmission using the SL resources.

A network device is configured to: obtain, from a first communication device, quality information about a quality of a radio link of the first communication device to one or more second communication devices; and provide to the one or more second communication devices and to the first communication device control information. The control information includes: membership information about a membership of the one or more second communication devices to one or more retransmission groups, and instructions on a group-specific retransmission of a data packet by members of a retransmission group.

System and method for implementing a time-switched MIMO signal analysis using a single RF signal receiver to capture the multiple incoming data packet signals. In accordance with example embodiments, like portions of repetitive data slots may be captured with a periodicity equal to that of their host repetitive data frames.