A base station triggers transmission of sounding reference signals (SRS) from one or multiple user equipments (UEs) on one or multiple cells and a UE determines a power, a time instance, and other parameters for SRS transmissions in response to the triggering. An SRS transmission can be on a cell where a UE is not configured to transmit data or control information.

A base station triggers transmission of sounding reference signals (SRS) from one or multiple user equipments (UEs) on one or multiple cells and a UE determines a power, a time instance, and other parameters for SRS transmissions in response to the triggering. An SRS transmission can be on a cell where a UE is not configured to transmit data or control information.

This application provides a method for managing an antenna panel, a network device, and a terminal device. The method includes: a network device receives capability information that is of an antenna panel and that is from a terminal device, and sends an activation command and/or a deactivation command to the terminal device, so that the terminal device performs a corresponding operation. In embodiments of this application, the network device assists the terminal device in managing an antenna panel, so that the terminal device can better manage the antenna panel, thereby reducing overheads of the terminal device.

A user equipment (UE) receives a parameter indicating a power control loop out of a plurality of power control loops and a first transmit power control (TPC) command. The UE transmit a first uplink physical channel based on the first TPC command and the indicated power control loop. Further, the UE receive a single downlink channel, wherein the single downlink channel carries a channel allocation and a second TPC command for the UE. The UE transmit a second uplink physical channel using resources based on the channel allocation and at a transmission power level based on the second TPC command.

A user equipment (UE) receives a parameter indicating a power control loop out of a plurality of power control loops and a first transmit power control (TPC) command. The UE transmit a first uplink physical channel based on the first TPC command and the indicated power control loop. Further, the UE receive a single downlink channel, wherein the single downlink channel carries a channel allocation and a second TPC command for the UE. The UE transmit a second uplink physical channel using resources based on the channel allocation and at a transmission power level based on the second TPC command.

A base station triggers transmission of sounding reference signals (SRS) from one or multiple user equipments (UEs) on one or multiple cells and a UE determines a power, a time instance, and other parameters for SRS transmissions in response to the triggering. An SRS transmission can be on a cell where a UE is not configured to transmit data or control information.

A base station triggers transmission of sounding reference signals (SRS) from one or multiple user equipments (UEs) on one or multiple cells and a UE determines a power, a time instance, and other parameters for SRS transmissions in response to the triggering. An SRS transmission can be on a cell where a UE is not configured to transmit data or control information.

A method for dynamic allocation of communication resources includes (1) determining a risk-return characterization of a plurality of communication resource allocations across a plurality of communication channels in a communication system, (2) selecting a first allocation of the plurality of communication resource allocations from the risk-return characterization according to at least one predetermined criterion, and (3) automatically allocating communication resources among the plurality of communication channels according to the first allocation.

Performing a random-access channel procedure (RACH procedure) by a terminal in an unlicensed band. Specifically, a method may include: transmitting message A including a first physical random-access channel (PRACH) and a first physical uplink shared channel (PUSCH) to a base station; and receiving contention resolution-related message B from the base station in response to message A, wherein a power ramping counter is used to configure transmission power of message A, and the power ramping counter has a value which increases based on that a transmission spatial beam for transmission of message A is configured to be identical to a transmission spatial beam related to transmission of a PRACH preceding message A.

Performing a random-access channel procedure (RACH procedure) by a terminal in an unlicensed band. Specifically, a method may include: transmitting message A including a first physical random-access channel (PRACH) and a first physical uplink shared channel (PUSCH) to a base station; and receiving contention resolution-related message B from the base station in response to message A, wherein a power ramping counter is used to configure transmission power of message A, and the power ramping counter has a value which increases based on that a transmission spatial beam for transmission of message A is configured to be identical to a transmission spatial beam related to transmission of a PRACH preceding message A.