1. Continues Regression for Nokia BTS Products
Michal Chapko
Wroclaw

2. GSM (2G) Network UE 2G BTS BSC MSC GMSC PSTN VLR UE HLR SMSC AUC UE
SGSN
GGSN
IP Network UE

3. WCDMA(3G) Network UE 3G BTS RNC MSC GMSC PSTN VLR UE HLR EIR AUC UE
SGSN
GGSN
IP Network UE

4. LTE (4G) Network UE 4G BTS MME UE HSS PCRF UE 4G BTS SGW PDN
IP Network UE

5. SingleRAN Network (2G+3G+4G in 1Base Station)UE
SPR
HSS
PCRF
SBTS
PSTN UE
SWITCH
SWITCH UE
SBTS
SGW/SGSN/MGW
MME/MSS/
RNC/BSC
PGW/GGSN
IP Network UE

6. Our LAB

7. TA tools in HetRAN I&V

8. Env Setup

9. Good practices Re-use and share your code
React on the changes in SW in advance
Reduce your TA coverage to business minimum
If something is too generic it does not have particular use
Avoid automation of features in rapid development phase
No compromise: Test and analysis is fully automated or TC is manual
Automated Test should be environment aware – limit test setup parameters to minimum
Review the code
Look for feedback from requestor
Use dedicated environments for automated runs
Plan the time both for TA development and maintenance
<Change information classification in footer>

10. Reduce TA to Business Minimum??
Limited time for CR loop
Effort required for TA development vs manual execution cost
Frequency of Test Case usage
Supported configurations (HW, SW, Logical)
TA maintenance cost
Focus of most important features used by customer

11. Is it enough to report test results automatically?

12. Measuring the TA gains
-57% HC
Before
After
From To

13. Problem found in CR monthly
Pesticide paradox??

14. Q->A

15. Thank You
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