Embodiments of the present disclosure are directed to a method and apparatus for power control of PUSCH repetition. A method according to an embodiment of the present application may include: receiving a mapping pattern and a configuration of a plurality of power control parameter sets for a physical uplink shared channel (PUSCH) transmission, which is configured to be transmitted in a plurality of time intervals repeatedly; receiving a downlink control information (DCI) for scheduling the PUSCH transmission, wherein the DCI includes a sounding reference signal resource indicator (SRI) field; determining a power of each PUSCH repetition of the PUSCH transmission based on at least one SRI value in the SRI field, the configuration of the plurality of power control parameter sets and the mapping pattern; and transmitting the PUSCH transmission in the plurality of time intervals repeatedly based on the determined power of each PUSCH repetition of the PUSCH transmission and the mapping pattern.

Embodiments of the present disclosure are directed to a method and apparatus for power control of PUSCH repetition. A method according to an embodiment of the present application may include: receiving a mapping pattern and a configuration of a plurality of power control parameter sets for a physical uplink shared channel (PUSCH) transmission, which is configured to be transmitted in a plurality of time intervals repeatedly; receiving a downlink control information (DCI) for scheduling the PUSCH transmission, wherein the DCI includes a sounding reference signal resource indicator (SRI) field; determining a power of each PUSCH repetition of the PUSCH transmission based on at least one SRI value in the SRI field, the configuration of the plurality of power control parameter sets and the mapping pattern; and transmitting the PUSCH transmission in the plurality of time intervals repeatedly based on the determined power of each PUSCH repetition of the PUSCH transmission and the mapping pattern.

Methods and apparatuses are disclosed for providing control and data information in communication systems. A method performed by a user equipment (UE) in a wireless communication system includes identifying first offset information; determining a size of uplink data for the UE; and transmitting, to a base station in the wireless communication system, the uplink data with at least one of acknowledgement/non-acknowledgment (ACK/NACK) information and channel quality indicator (CQI) information on a physical uplink shared channel (PUSCH). A number of ACK/NACK repetition is determined based on the first offset information and the size of the uplink data.

Methods and apparatuses are disclosed for providing control and data information in communication systems. A method performed by a user equipment (UE) in a wireless communication system includes identifying first offset information; determining a size of uplink data for the UE; and transmitting, to a base station in the wireless communication system, the uplink data with at least one of acknowledgement/non-acknowledgment (ACK/NACK) information and channel quality indicator (CQI) information on a physical uplink shared channel (PUSCH). A number of ACK/NACK repetition is determined based on the first offset information and the size of the uplink data.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit an autonomous uplink (AUL) transmission to a base station using a configured resource set, the AUL transmission comprising reference signals and data signals. The UE may determine whether a response signal was received from the base station in response to the AUL transmission. The UE may determine whether the response signal indicates that the base station received the reference signals, or the reference signals and the data signals. The UE may select an uplink transmission scheme to use for subsequent transmissions to the base station, the selected uplink transmission scheme based at least in part on the determination of whether the response signal was received from the base station and whether the response signal indicates that the base station received the reference signals or the reference signals and the data signals.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit an autonomous uplink (AUL) transmission to a base station using a configured resource set, the AUL transmission comprising reference signals and data signals. The UE may determine whether a response signal was received from the base station in response to the AUL transmission. The UE may determine whether the response signal indicates that the base station received the reference signals, or the reference signals and the data signals. The UE may select an uplink transmission scheme to use for subsequent transmissions to the base station, the selected uplink transmission scheme based at least in part on the determination of whether the response signal was received from the base station and whether the response signal indicates that the base station received the reference signals or the reference signals and the data signals.

An apparatus for controlling an Uplink (UL) power in a wireless communication system including a transmitter/receiver and a controller may be provided. The transmitter/receiver may receive/decode Downlink (DL) data, transmit a feedback signal with respect to the DL data, and receive Transmit power Control (TPC) commands from active set cells including a serving cell. The controller may decode the TPC commands to generate a combined TPC command, in which decoded TPC commands of the active set cells are combined, and calculate a transmission error rate of an UL feedback transmission signal and a requested rate of transmit power increase of the serving cell, determine a transmit power gain offset and the requested rate of transmit power increase, determine an UL power for transmitting a feedback signal with respect to the received DL data based on the transmit power gain offset, and transmit the feedback signal based on the UL power.

Aspects of the present disclosure provide a two-stage uplink transmission scheme. As described herein, a UE may transmit a first portion of an uplink signal to an AN, receive a first acknowledgment responsive to the first portion, and after receiving the first acknowledgement, transmit the first portion and a second portion of the uplink signal to the AN. The AN may receive a first portion of an uplink signal from UE, transmit a first acknowledgment responsive to the first portion, and after transmitting the acknowledgement, receive the first portion and a second portion of the uplink signal from the UE.

Methods, systems, and devices for wireless communications are described. A wireless communications system may support techniques for channel state information (CSI) based artificial noise injection. In some cases, a base station may receive an indication of CSI associated with a channel for communications with the UE. The base station may apply artificial noise signals, based on the CSI, to a set of first signals associated with control channel transmissions to obtain a set of second signals. The UE may receive the set of second signals and apply pseudo-noise signals, based on the CSI, to the set of second signals to remove or reduce the artificial noise. The UE may combine the set of second signals adjusted by applying the pseudo-noise signals to obtain a combined signal. The UE may decode the combined signal to obtain control information.

A method and apparatus for accessing a contention-based uplink random access channel (RACH) in a single carrier frequency division multiple access (SC-FDMA) system are disclosed. A wireless transmit/receive unit (WTRU) randomly selects a RACH subchannel and a signature among a plurality of available RACH subchannels and signatures. The WTRU transmits a preamble using the selected signature via the selected RACH subchannel at a predetermined or computed transmission power. A base station monitors the RACH to detect the preamble and sends an acquisition indicator (AI) to the WTRU when a signature is detected on the RACH. When receiving a positive acknowledgement, the WTRU sends a message part to the base station. If receiving a negative acknowledgement or no response, the WTRU retransmits the preamble.