UL SRS POWER CONTROL UNDER MULTI-TRP OPERATION FOR C-JT

Abstract

There is provided a method, computer program and apparatus for causing apparatus at least to: receive a sounding reference signal configuration comprising one or more sounding reference signal resources and/or resource sets for sounding reference signal resource transmission; obtain multiple pathloss reference points from the one or more reference signal resources, the one or more reference signal resources associated with multiple transmission configuration indicator states, the multiple transmission configuration indicator states associated with multiple transmission and reception points having the same or different physical cell identifiers; determine a transmit power level for the sounding reference signal resource transmission to sound a channel for the multiple transmission and reception points, based on a joint metric of the multiple pathloss reference points; determine a set of transmission and reception points of the multiple transmission and reception points, based on the determined transmit power level; and transmit uplink data or a reference signal or control information based on the determined transmit power level from a user equipment to the multiple transmission and reception points within the set, using the one or more sounding reference signal resources.

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