FIG. 24C shows another example scenario, which may be employed alternatively or additional with the example scenarios described above. In the example scenario of FIG. 24, the notification message 42(21) may carry signal quality/strength value(s)/indicator(s) measured by a parent node at the upstream link of the parent node. In other words, a parent node may provide a measurement of signal quality/strength value(s)/indicator(s) in the notification message 42(21). Upon reception of such measurement-bearing notification message, the MT of the IAB-node may use such value(s)/indicator(s) to evaluate the configured triggering events. That is, as shown in FIG. 24C, the information 99 representing the radio condition may comprise the measurement reported in the notification message, which may be compared by the handoff controller 96(22) with the threshold(s) of the information 98 representing the triggering condition. For example, in a case that Event A3 is configured with RSRP value (MeasTriggerQuantity=rsrp), upon receiving from its parent node the notification message including an RSRP value, the MT part of the IAB-node may use the RSRP value as if it were measured from the serving cell, PCell, or PSCell.
