Performance measurements and kpis related to packet delay in ng-ran and 5gs

A management system configured provide key performance indicators (KPIs) in a fifth generation (5G) system, the system comprising:

• a service producer for KPIs for at least one of a sub-network, network slice subnet, or network slice comprising processing circuitry and memory configured to:
• collect, from a plurality of service producers, performance measurements of at least one of next generation radio access networks (NG-RANs) or 5G core network (5GC) contained by or associated to at least one of a sub-network, network slice subnet, or network slice, the performance measurements including packet delays that include uplink (UL) and downlink (DL) delays associated with each new radio (NR) cell distributed unit (NR cell DU) and delays associated with a 5th generation NodeB (gNB) central unit (CU) user plane (UP) (gNB-CU-UP) of each of the NG-RANs, or delays associated with each user plane function (UPF);
• and
• generate KPIs based on the performance measurements collected by the service producer for KPIs, the KPIs including at least one of integrated average UL and DL packet delays, gNB DU delays or e2e delays for the at least one of the sub-network, network slice subnet, or network slice that are dependent on:
• an overall DU delay for each NR cell DU that comprises an air interface delay of an air interface between the NR cell DU and a user equipment (UE) connected to the NR cell DU and a NR cell DU delay within the NR cell DU, and
• an overall gNB-CU delay that comprises an F1 delay on an F1 interface and a gNB-CU delay within the gNB-CU-UP, or
• an e2e packet delay between the UPF and the UE.

A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors of a service producer for key performance indicators (KPIs) in a fifth generation (5G) system, the one or more processors to configure the service to, when the instructions are executed:

• collect performance measurements of next generation radio access networks (NG-RANs) or 5G core network (5GC) contained by or associated to at least one of a sub-network, network slice subnet, or network slice from a plurality of service producers, the performance measurements including packet delays for each gNB of each of the NG-RANs and packet delays for each 5GC, the packet delays for each gNB including uplink (UL) and downlink (DL) delays associated with a NR cell distributed unit (NR cell DU) and delays associated with a 5th generation NodeB (gNB) central unit (CU) user plane (UP) (gNB-CU-UP), and the packet delays for 5GC associated with a user plane function (UPF);
• and
• generate KPIs for the at least one of a sub-network, network slice subnet, or network slice based on the NG-RAN or 5GC performance measurements, the KPIs including integrated average UL and DL packet delays in NG-RAN, gNB DU delays, or e2e delays, the integrated delays dependent on:
• an overall gNB DU delay for each NR cell DU that comprises an air interface delay of an air interface between the NR cell DU and a user equipment (UE) connected to the NR cell DU and a NR cell DU delay within the NR cell DU, and
• an overall gNB-CU delay that comprises an F1 delay on an F1 interface and a gNB-CU delay within the gNB-CU-UP.