A wireless communication device is disclosed. The wireless communication device includes a processor, a transceiver coupled to the processor, and a memory coupled to the processor. The memory is configured to store a plurality of instructions and the plurality of instructions are executed by the processor to perform operations of storing, in the memory, a duplication of each of the plurality of packets transmitted by a streaming provider; and in response to a request of retransmission transmitted by a terminal device for a lost packet, determining whether the duplication of the lost packet is stored in the memory.

Disclosed is a method by which a terminal decodes a codeword in a wireless communication system. Specifically, the method may comprise: receiving a plurality of codewords; and decoding the plurality codewords on the basis of successive interference cancellation (SIC). In particular, the SIC may be performed on the basis of a decoding policy for decoding the plurality of codewords. In particular, the decoding policy may be determined by a neural network trained on the basis of a state and a reward related to the plurality of codewords.

Apparatus and methods of Sidelink (SL) Buffer Status Report (BSR) reporting for New Radio (NR) Vehicle-to-Everything (V2X) Communication are disclosed. The apparatus includes: a processor that arranges buffer size information for sidelink (SL) transmission into a plurality of buffer groups based on a destination ID and at least one selected from a group consisting of: a cast type and a Hybrid Automatic Repeat Request (HARQ) feedback mode; and a transmitter that transmits the buffer size information, according to the buffer groups.

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.

An apparatus for wireless communication includes a transmitter and a receiver. The receiver is configured to receive a first code block (CB) that is associated with a code block group (CBG) and that is included in a transport block (TB). The receiver is further configured to receive a second CB that is associated with the CBG and that is included in the TB. The first CB is distinct from the second CB. The second CB includes at least a first bit that is associated with the first CB.

An HARQ process management method and apparatus, a terminal, and a storage medium are provided. The HARQ process management method includes: receiving SCI; determining whether the SCI indicates a HARQ process identity to obtain a first determination result and determining a HARQ process associated with the SCI based on the first determination result.

A HARQ feedback method includes: receiving a first-service data transmission from a base station, schedule control data of the first- service data transmission carrying indication information, the indication information explicitly or implicitly indicating that second-service data preempts a transmission resource of first-service data or second-service data preempts a transmission resource position of first-service data; retaining the second-service data preempting the transmission resource in a cache according to the indication information, and generating HARQ feedback information of the first-service data; and sending the HARQ feedback information to the base station.

Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may support both unicast and multicast downlink signaling, such as on a single component carrier (CC). A UE may receive a unicast message over a first CC during a transmission time interval (TTI) using a first set of processing resources. The UE may simultaneously receive a multicast message over the first CC during the same TTI using a second set of processing resources. The first and second sets of processing resources may be associated with first and second hybrid automatic repeat request (HARQ) soft buffers, first and second CCs, or first and second transmit/receive points (TRPs).

An apparatus for wireless communication includes a transmitter and a receiver. The receiver is configured to receive a first code block (CB) that is associated with a code block group (CBG) and that is included in a transport block (TB). The receiver is further configured to receive a second CB that is associated with the CBG and that is included in the TB. The first CB is distinct from the second CB. The second CB includes at least a first bit that is associated with the first CB.