Mobile core

[MMAN]

Dears

Could you please share the following for MSS/MGW/IMS/HSS Huawei Core Network :-

-MSS/MGW/IMS/HSS Huawei Core Network Architecture.
-Important KPI's and Analysis report for MSS or MGW or IMS or HSS.
-Root causes KPIs analysis for MSS or MGW or IMS or HSS.
-Performance counters Documents for MSS/MGW/IMS/HSS Huawei Core Network

If need to calculate the KPI's please provide the formula
If somebody prepared Core network KPIs Analysis report before could you please share

Your urgent support is highly apprecited