The present invention relates to a wireless communication terminal and a wireless communication method for efficiently managing simultaneous data transmissions of a plurality of terminals. To this end, provided are a base wireless communication terminal including: a transceiver configured to transmit and receive a wireless signal; and a processor configured to control an operation of the base wireless communication terminal, wherein the processor is configured to: transmit a trigger frame triggering a multi-user uplink transmission of a plurality of terminals, receive multi-user uplink data through resources allocated to the plurality of terminals, and transmit a block ACK through the resources in response to the received multi-user uplink data, wherein the transmission of the block ACK in each resource is terminated at the same time, and a wireless communication method using the same.

Aspects relate to implementing a non-dropping rule for mini-slot based repetition of downlink channel data or control. In one example, cancelled repetition may be identified, non-cancelled remaining repetitions may be received, and acknowledgment feedback based on reception results may be generated. In another example, a plurality of time domain resource allocation (TDRA) candidate occasions may be identified where each occasion occurs within a different respective one of a plurality of mini-slots, each mini-slot carrying a different respective one of a plurality of downlink channel repetitions. A TDRA table may be maintained. The TDRA table may include TDRA entries such as location information of the plurality of TDRA candidate occasions associated with the plurality of downlink channel repetitions. The TDRA table may be maintained when at least one of the plurality of downlink channel repetitions is not decoded. A wireless communication device may refrain from dropping non-decoded downlink channel repetitions.

A base station device includes: a storage that stores a group indicating unit data subject to retransmission out of predetermined number of unit data included in transmission data to be transmitted to a terminal device, and identification information to identify the group, in an associated manner; a receiver that receives, from the terminal device, identification information corresponding to transmission data transmitted to the terminal device; a communication controller that refers to the storage based on the received identification information, and that determines retransmission of unit data included in a group corresponding to the received identification information out of the transmission data; and a transmitter that transmits unit data included in the group determined to be retransmitted by the communication controller, to the terminal device.

A feedback information sending method and an apparatus are provided. The method includes: A network device sends, to a terminal device, M pieces of DCI for scheduling N transmissions of first data, values in DAI fields comprised in all of the M pieces of DCI are the same; and the terminal device sends feedback information of the first data to the network device, wherein the feedback information is comprised in an HARQ-ACK codebook, and a location of the feedback information in the HARQ-ACK codebook is determined based on a DAI field in first DCI of the M pieces of DCI.

Systems, methods, and instrumentalities are described herein for supporting CBG-based retransmission with variable CBG size using variable length HARQ-ACK. A WTRU may receive a configuration to use a first table. The first table may be associated with a maximum number of code block groups per transport block (maxCBG/TB). The WTRU may determine a number of HARQ-ACK bits to send for code blocks. The determination may depend on whether an indication is received to switch from the first table to a second table. On a condition that the indication to switch from the first table to the second table is received, the WTRU may send a number of HARQ-ACK bits that is equal to two times the maxCBG/TB. The WTRU may receive a retransmission of a number of code blocks, wherein a code block group size depends on a sent number of HARQ-ACK bits.

Methods and apparatuses for facilitating, in multi-link devices (MLDs) that are capable of exchanging an Aggregated MAC Protocol Data Unit (A-MPDU), simultaneous transmission of the A-MPDU and retransmission of failed MPDUs of the A-MPDU. A non-access point (AP) MLD comprises STAs, each comprising a transceiver configured to form a link with a corresponding AP of an AP MLD, and a processor. A first transceiver is configured to receive, from the AP MLD on a first of the links, an A-MPDU comprised of multiple MPDUs. the processor is configured to detect, during reception of the A-MPDU, that at least one of the MPDUs has not been received. A second transceiver is configured to transmit, to the AP MLD on a second of the links, a request to retransmit the at least one MPDU on the second link before reception of the A-MPDU on the first link is complete.

Technology for a user equipment (UE) operable for configured grant uplink (UL) transmission in new radio unlicensed (NR-U) is disclosed. The apparatus can comprise one or more processors. The one or more processors can be configured to select, at the UE, a hybrid automatic repeat request process identifier (HARQ process ID) from a set of HARQ IDs. The one or more processors can be configured to insert the HARQ process ID into uplink control information (UCI) on a physical uplink shared channel (PUSCH). The one or more processors can be configured to encode, at the UE, the UCI for transmission to a next generation node B (gNB) via a configured grant uplink transmission using the HARQ process ID.

A system and method for determining the weight gain trend of a user. The weekly weight oscillation is determined, and a future weight trend can be predicted. At least three weeks of weight oscillation trends are typically used to predict future weight trends.

Communication devices are provided that facilitate receiving information units and providing feedback to other communication devices.

The present disclosure relates to a communication technique for converging IoT technology with a 5G communication system for supporting a higher data transfer rate beyond a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (e.g., smart homes, smart buildings, smart cities, smart or connected cars, health care, digital education, retail business, and services associated with security and safety) on the basis of 5G communication technology and IoT-related technology. Disclosed are a method and an apparatus for configuring an efficient hierarchical layer 2 architecture and main functions thereof in a next-generation mobile communication system.