Methods and apparatus are described herein for improved efficiency of a wireless transmit/receive unit (WTRU) transmitting transport blocks (TBs). A WTRU may receive configuration information including uplink resources associated with one or more repetition bundles and a target number of retransmissions for a transport block (TB) associated with at least one hybrid automatic repeat request (HARQ) process. Then, the WTRU may transmit a first TB using a first uplink resource in a first repetition bundle based on the configuration information. Further, the WTRU may increment a retransmission counter. On a condition that the retransmission counter is less than the target number of retransmissions, the WTRU may determine a second uplink resource. Further, the WTRU may retransmit the first TB in the determined second uplink resource. Also, the WTRU may further increment the retransmission counter. Moreover, the first, second and third uplink resources may be physical uplink shared channel (PUSCH) resources.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine that a base station has scheduled the UE for one or more downlink transmissions, each of the one or more downlink transmissions having an associated repetition factor that corresponds to one of a plurality of configured repetition factors configured at the UE. The UE may identify an applied repetition factor to apply to feedback codebook generation for the one or more downlink transmissions. The UE may generate a feedback codebook for reporting feedback for the one or more downlink transmissions, the feedback codebook populated based at least in part on the applied repetition factor and on whether the one or more downlink transmissions were successfully received and decoded. The UE may transmit to the base station a feedback report that includes the feedback codebook.

A basestation (e.g., a gNodeB) may transmit transmission scheduling information (such as downlink control information) to user equipment (UE). The basestation may include repetition related parameters (such as repetition numbers, aggregation factors, or other repetition information) for transmission repetition control within the transmission scheduling information.

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.

Embodiments of the present application provides a method and apparatus for determining a monitoring occasion, the method includes: determining, according to first information, a number of times of repetitive transmission for a physical downlink control channel PDCCH; and determining N slots according to the number of the times of the repetitive transmission for the PDCCH, where N is used to indicate a number of slots included in the monitoring occasion for monitoring the PDCCH, and N is an integer greater than 1. The requirement of the repetitive transmission for a PDCCH can be met, and the performance of the PDCCH transmission can be improved.

This application provides a communication method and a communications device. The method includes: A first device receives a first message sent by a second device. The first message is used to indicate a bearer configuration of a bearer of the first device and an initial status of the bearer configuration, and the bearer configuration includes a first bearer configuration and/or a second bearer configuration. The first device determines the bearer configuration and the initial status of the bearer configuration based on the first message. According to the technical solutions in embodiments of this application, a bearer configuration of a terminal device and an initial status of the bearer configuration of the terminal can be indicated.

Various arrangements for performing uplink grant-free transmissions are presented herein. An instance of user equipment (UE) may determine data that is to be transmitted using a grant-free (GF) uplink transmission to a base station of a cellular network. The UE may select a first GF resource block and a second GF resource block. The UE may transmit GF transmissions that comprise: a data payload and a first pointer at the first GF resource block; and the data payload and a second pointer at the second GF resource block. The first pointer may refer to the second GF resource block, while the second pointer may refer to the first GP resource block.

Exemplary surveillance system is provided having a plurality of data generating devices, and nodes for data handling of the data streams generated from the data generating devices. The system may be configured to fragment the data streams and store the fragments among the plurality of nodes of the system. The system may be configured to redundantly transmit data through the nodes so the fragmented data stream arrive at the desired location for storage. The data transmission may permit redirection or retransmission based on node or data transmission failure.

A communication system intended for use in a motor vehicle includes a plurality of devices (26, 28), a transmission channel (32) that connects the plurality of devices (26, 28) to one another, and a signal source (30) coupled to the transmission channel (32). Each of the devices (26, 28) includes a control unit (36) configured for evaluating signals of the transmission channel (32), and at least two coupling units (38, 40) configured for connecting and disconnecting the particular device (26, 28) to/from the transmission channel (32). The control units (36) of the devices (26, 28) are configured for causing the coupling units (38, 40), at a certain point in time, in each case to connect no more than one of the devices (26, 28) to the transmission channel (32), and to disconnect the other of the devices (26, 28) from the transmission channel (32).

A physical channel transmission method and apparatus, a node and a non-transitory computer-readable storage medium. The physical channel transmission method may include: acquiring, by a transmitter, K copies of reference signal parameters, the K copies of reference signal parameters being used for N repetitive transmissions of a physical channel, where the K and N are integers greater than 1 and the N is greater than or equal to K; and performing, by the transmitter, repetitive transmissions of the physical channel according to the K copies of reference signal parameters.