A method of transmission precoding matrix indicator (TPMI) grouping includes identifying, all TPMI groups to achieve uplink (UL) full power for Capability 3 partial coherent user equipment (UE) with 4-Tx ports with a Mode 2 operation.

A method of transmission precoding matrix indicator (TPMI) grouping includes identifying, all TPMI groups to achieve uplink (UL) full power for Capability 3 partial coherent user equipment (UE) with 4-Tx ports with a Mode 2 operation.

A terminal includes a control unit using, in DC using first and second RATs, a first power class (PC) if a duty cycle is not greater than a threshold, the duty cycle obtained by adding a value obtained by multiplying: a first RAT duty cycle; a value obtained by dividing a maximum transmit power allowed for a network of the first RAT by a maximum transmit power for the DC corresponding to the first PC; and a ratio indicating a degree of influence of the first RAT over the second RAT, to a value obtained by multiplying: a second RAT duty cycle; and a value obtained by dividing a maximum transmit power allowed for a network of the second RAT by a maximum transmit power for the DC corresponding to the first PC, and a transmission unit performing uplink transmission to which the first PC is applied.

A terminal includes a control unit using, in DC using first and second RATs, a first power class (PC) if a duty cycle is not greater than a threshold, the duty cycle obtained by adding a value obtained by multiplying: a first RAT duty cycle; a value obtained by dividing a maximum transmit power allowed for a network of the first RAT by a maximum transmit power for the DC corresponding to the first PC; and a ratio indicating a degree of influence of the first RAT over the second RAT, to a value obtained by multiplying: a second RAT duty cycle; and a value obtained by dividing a maximum transmit power allowed for a network of the second RAT by a maximum transmit power for the DC corresponding to the first PC, and a transmission unit performing uplink transmission to which the first PC is applied.

Spurious beamforming in high density environments can be reduced via transmitting a first signal from a first Access Point (AP) to a first endpoint associated with the first AP via a first beamforming arrangement; in response to identifying that the first beamforming arrangement is pollutive to a second endpoint associated with a second AP: deprecating the first beamforming arrangement; and transmitting a second signal from the first AP to the first endpoint via a second beamforming arrangement, different from the first beamforming arrangement.

Spurious beamforming in high density environments can be reduced via transmitting a first signal from a first Access Point (AP) to a first endpoint associated with the first AP via a first beamforming arrangement; in response to identifying that the first beamforming arrangement is pollutive to a second endpoint associated with a second AP: deprecating the first beamforming arrangement; and transmitting a second signal from the first AP to the first endpoint via a second beamforming arrangement, different from the first beamforming arrangement.

A disclosure of this specification provides a device configured to operate in a wireless system and to support PC2 (Power Class 2), the device comprising: a transceiver configured with intra-band non-contiguous CA, wherein the transceiver is equipped with dual power amplifier, wherein the intra-band non-contiguous CA is configured to use a first CC(component carrier) and a second CC; and a processor operably connectable to the transceiver, wherein the processer is configured to: determine maximum transmission power, based on an MPR(Maximum Power Reduction), transmit uplink signal using the intra-band non-contiguous CA, based on maximum the transmission power.

A disclosure of this specification provides a device configured to operate in a wireless system and to support PC2 (Power Class 2), the device comprising: a transceiver configured with intra-band non-contiguous CA, wherein the transceiver is equipped with dual power amplifier, wherein the intra-band non-contiguous CA is configured to use a first CC(component carrier) and a second CC; and a processor operably connectable to the transceiver, wherein the processer is configured to: determine maximum transmission power, based on an MPR(Maximum Power Reduction), transmit uplink signal using the intra-band non-contiguous CA, based on maximum the transmission power.

An information receiving method and an apparatus are disclosed. The method includes: receiving, by a terminal device, first power information and second power information from a network device; and determining a first maximum transmission power based on the first power information, and determining a second maximum transmission power based on the second power information, where the first maximum transmission power is a maximum transmission power to be used by the terminal device for transmitting a signal by a first radio access technology, and the second maximum transmission power is a maximum transmission power to be used by the terminal device for transmitting a signal by a second radio access technology.

A system described herein may provide a technique for determining a maximum and/or target output power on a per-beam and/or per-direction basis for a base station of a radio access network (“RAN”) that implements multiple beams for which output power is dynamically adjustable. The maximum and/or target output power for a given beam (or set of beams) for a given time period may be determined based on historical output power information associated with the beam over one or more previous time periods. The maximum and/or target output power may be based on a predicted received signal power within a coverage area of the base station, based on varying levels of output power.