Patent ID: 9510294
Filing Date: 2016-11-29
CPC Classification: H04B,H04L,H04W

Claim Text:
1. A method for use by a base station to control uplink transmission power, the method comprising: transmitting, to a wireless transmit receive unit (WTRU), an antenna configuration indication and a total uplink transmission power offset, wherein the antenna configuration indication indicates to the WTRU to either use one antenna port for transmission or to enter a multiple-input multiple-output (MIMO) mode that uses at least two antenna ports for transmission, and further wherein the total uplink transmission power offset is associated with the MIMO mode, and a total uplink transmission power, that is spread across all antennas employed in a transmission of an uplink subframe, has been offset by a value indicated by the total uplink transmission power offset; and on a condition that the transmitted antenna configuration indicates that the WTRU should enter into the MIMO mode that uses at least two antenna ports, receiving, from the WTRU, an uplink subframe at the total uplink transmission power, wherein the total uplink transmission power is a result of an uplink transmit power control formula using the total uplink transmission power offset.