A wireless communication base station, BS, comprising: a plurality of transmission and reception points, TRPs; a wireless transceiver coupled to the plurality of TRPs, the wireless transceiver configured to cause the BS to: determine whether a transmission medium within an unlicensed spectrum band is available for transmission by the BS during a first time instance; in response to determining that the transmission medium is available for transmission by the BS during the first time instance, transmit a plurality of copies of a first synchronization signal block, SSB, wherein each copy of the first SSB is transmitted within the first time instance but at a different frequency-domain position within a communication channel, wherein each copy of the first SSB is transmitted according to a distinct beamforming configuration; and in response to determining that the transmission medium is not available for transmission by the BS during the first time instance, forego transmission of the first SSB during the first time instance, and determine whether the transmission medium is available for transmission by the BS during a second, subsequent time instance; characterized in that the first SSB is included in a plurality of SSBs scheduled for transmission within a SSB burst window, the SSB burst window including at least the first time instance and the second time instance, wherein the wireless transceiver is further configured to cause the BS to: in response to transmitting the plurality of copies of the first SSB, forego transmission of the other SSBs of the plurality of SSBs scheduled for transmission within the SSB burst window. a plurality of transmission and reception points, TRPs; a wireless transceiver coupled to the plurality of TRPs, the wireless transceiver configured to cause the BS to: determine whether a transmission medium within an unlicensed spectrum band is available for transmission by the BS during a first time instance; in response to determining that the transmission medium is available for transmission by the BS during the first time instance, transmit a plurality of copies of a first synchronization signal block, SSB, wherein each copy of the first SSB is transmitted within the first time instance but at a different frequency-domain position within a communication channel, wherein each copy of the first SSB is transmitted according to a distinct beamforming configuration; and in response to determining that the transmission medium is not available for transmission by the BS during the first time instance, forego transmission of the first SSB during the first time instance, and determine whether the transmission medium is available for transmission by the BS during a second, subsequent time instance; determine whether a transmission medium within an unlicensed spectrum band is available for transmission by the BS during a first time instance; in response to determining that the transmission medium is available for transmission by the BS during the first time instance, transmit a plurality of copies of a first synchronization signal block, SSB, wherein each copy of the first SSB is transmitted within the first time instance but at a different frequency-domain position within a communication channel, wherein each copy of the first SSB is transmitted according to a distinct beamforming configuration; and in response to determining that the transmission medium is not available for transmission by the BS during the first time instance, forego transmission of the first SSB during the first time instance, and determine whether the transmission medium is available for transmission by the BS during a second, subsequent time instance; characterized in that the first SSB is included in a plurality of SSBs scheduled for transmission within a SSB burst window, the SSB burst window including at least the first time instance and the second time instance, wherein the wireless transceiver is further configured to cause the BS to: in response to transmitting the plurality of copies of the first SSB, forego transmission of the other SSBs of the plurality of SSBs scheduled for transmission within the SSB burst window.