A system can facilitate assigning guaranteed bitrate (GBR) admission control thresholds in a network with multiple network slices serving multiple GBR services. Thus, each network slice can optionally have its own dedicated GBR admission. For example, based on a requested service, the system can compare a received quality indicator to a threshold value to determine if a bearer shall be admitted in accordance with dedicated GBR admission control region within its slice. If the slice does not have its own GBR admission control region or if its threshold is reached, the system can compare the received quality indicator to another threshold value to determine if the bearer shall be admitted in accordance with a common GBR admission control region.