A base station, in particular a gNodeB, configured to: - determine or configure a transmission group comprising at least two User Equipments, UEs (810, 820), - transmit a signal to at least one of UEs (810, 820) in the transmission group, wherein the signal comprises information about a feedback to be received from at least one of the UEs (810, 820) in the transmission group, wherein the feedback comprises information about the UEs (810, 820) in the transmission group; and - configure the transmission group based on information provided by at least one UE of the transmission group; characterized in that the base station is further configured to configure a lead UE of the transmission group either for aggregated group feedback (401, 501) or for non-aggregated group feedback (402, 502) based on channel conditions; wherein the lead UE is at least one of the UEs in the transmission group and is configured to report to the base station feedbacks from other UEs among the transmission group; wherein the aggregated group feedback comprises at least one of the following options: feeding back a weighted mean, a normal mean, a maximum, a minimum and/or a median of a CQI, an RSRP or an RSRQ of all UEs (810, 820) of the transmission group; feeding back a differential group CQI, RSRP and/or RSRQ which is based on a predefined or configured reference; wherein the non-aggregated group feedback comprises at least one of the following options: feeding back an associated beam index, CRI index and/or SSB index for a reported CQI, RSRP and/or RSRQ; or feeding back a CQI, RSRP and/or RSRQ for which a predefined or configured relationship to a beam index, CRI index and/or SSB index exists; differential CQI, RSRP and/or RSRQ based reporting for CQI, RSRP and/or RSRQ of the other UE's of the transmission group; concatenating the CQI, RSRP and/or RSRQ of the UE's (810, 820) of the transmission group according to a CRI index or beam index order or according to an order configured by signaling. - determine or configure a transmission group comprising at least two User Equipments, UEs (810, 820), - transmit a signal to at least one of UEs (810, 820) in the transmission group, wherein the signal comprises information about a feedback to be received from at least one of the UEs (810, 820) in the transmission group, wherein the feedback comprises information about the UEs (810, 820) in the transmission group; and - configure the transmission group based on information provided by at least one UE of the transmission group; the base station is further configured to configure a lead UE of the transmission group either for aggregated group feedback (401, 501) or for non-aggregated group feedback (402, 502) based on channel conditions; wherein the lead UE is at least one of the UEs in the transmission group and is configured to report to the base station feedbacks from other UEs among the transmission group; wherein the aggregated group feedback comprises at least one of the following options: feeding back a weighted mean, a normal mean, a maximum, a minimum and/or a median of a CQI, an RSRP or an RSRQ of all UEs (810, 820) of the transmission group; feeding back a differential group CQI, RSRP and/or RSRQ which is based on a predefined or configured reference; wherein the non-aggregated group feedback comprises at least one of the following options: feeding back an associated beam index, CRI index and/or SSB index for a reported CQI, RSRP and/or RSRQ; or feeding back a CQI, RSRP and/or RSRQ for which a predefined or configured relationship to a beam index, CRI index and/or SSB index exists; differential CQI, RSRP and/or RSRQ based reporting for CQI, RSRP and/or RSRQ of the other UE's of the transmission group; concatenating the CQI, RSRP and/or RSRQ of the UE's (810, 820) of the transmission group according to a CRI index or beam index order or according to an order configured by signaling. feeding back a weighted mean, a normal mean, a maximum, a minimum and/or a median of a CQI, an RSRP or an RSRQ of all UEs (810, 820) of the transmission group; feeding back a differential group CQI, RSRP and/or RSRQ which is based on a predefined or configured reference; wherein the non-aggregated group feedback comprises at least one of the following options: feeding back an associated beam index, CRI index and/or SSB index for a reported CQI, RSRP and/or RSRQ; or feeding back a CQI, RSRP and/or RSRQ for which a predefined or configured relationship to a beam index, CRI index and/or SSB index exists; differential CQI, RSRP and/or RSRQ based reporting for CQI, RSRP and/or RSRQ of the other UE's of the transmission group; concatenating the CQI, RSRP and/or RSRQ of the UE's (810, 820) of the transmission group according to a CRI index or beam index order or according to an order configured by signaling. feeding back an associated beam index, CRI index and/or SSB index for a reported CQI, RSRP and/or RSRQ; or feeding back a CQI, RSRP and/or RSRQ for which a predefined or configured relationship to a beam index, CRI index and/or SSB index exists; differential CQI, RSRP and/or RSRQ based reporting for CQI, RSRP and/or RSRQ of the other UE's of the transmission group; concatenating the CQI, RSRP and/or RSRQ of the UE's (810, 820) of the transmission group according to a CRI index or beam index order or according to an order configured by signaling.