A method for communicating a beam indication, the method comprising: receiving, by a user equipment device, UE , via wireless communications, downlink control information, DCI, comprising a transmission configuration indication, TCI, state field extended to provide a plurality of beam indications for monitoring a corresponding plurality of different receive channels associated with a hierarchical beamforming structure, wherein a beam resolution increases monotonically from higher order channels to lower order channels, and wherein beams for higher order channels are wider than or equal in width to beams for lower order channels; and monitoring the plurality of different receive channels using respective corresponding beams obtained by performing beamforming for each respective corresponding beam based at least on a corresponding beam indication of the received plurality of beam indications, characterized in that bits of the TCI state field indicating beams used for lower order channels are of lower significance than bits of the TCI state field indicating beams for higher order channels such that beams used for higher order channels are derived from beams used for lower order channels, and bits for indicating beams of a higher order channel are a subset consisting of the most significant bits of the set of bits used for indicating beams of a lower order channel; wherein the receive channel comprise, from high to low order, an SSB channel, a GC-PDCCH channel, a PDCCH channel, and a PDSCH channel; and wherein the plurality of beam indications is provided according to a specified number of bits, wherein the specified number depends on a number of beams supported for the PDSCH channel in the cell. receiving, by a user equipment device, UE , via wireless communications, downlink control information, DCI, comprising a transmission configuration indication, TCI, state field extended to provide a plurality of beam indications for monitoring a corresponding plurality of different receive channels associated with a hierarchical beamforming structure, wherein a beam resolution increases monotonically from higher order channels to lower order channels, and wherein beams for higher order channels are wider than or equal in width to beams for lower order channels; and monitoring the plurality of different receive channels using respective corresponding beams obtained by performing beamforming for each respective corresponding beam based at least on a corresponding beam indication of the received plurality of beam indications, characterized in that bits of the TCI state field indicating beams used for lower order channels are of lower significance than bits of the TCI state field indicating beams for higher order channels such that beams used for higher order channels are derived from beams used for lower order channels, and bits for indicating beams of a higher order channel are a subset consisting of the most significant bits of the set of bits used for indicating beams of a lower order channel; wherein the receive channel comprise, from high to low order, an SSB channel, a GC-PDCCH channel, a PDCCH channel, and a PDSCH channel; and wherein the plurality of beam indications is provided according to a specified number of bits, wherein the specified number depends on a number of beams supported for the PDSCH channel in the cell. <EOS>