Section: 9.3 5G Timing Resiliency
Content: The 5G system shall be able to collect charging information based on the timing source (e.g., the source in use, start and stop of source usage). The 5G system shall be able to collect charging information per UE for use of a timing source (e.g., start/stop time and source used by a UE, timing source used by UE, holdover capability). The 5G system shall be able to collect charging information on 5G system timing resiliency (e.g., resiliency KPIs, holdover capability, number of UEs using a certain timing source). The 5G system shall be able to collect charging information per application using 5G timing resiliency, including 3rd party application, (e.g., timing resiliency KPIs, holdover capability, number of UEs using a certain timing source).