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DT Test Analyzing Procedures

 

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Flow Note

1. Requirement analyzing
1) Network coverage requirement information;
2) The current network cell site information;
3) System parameters configuration;
4) The existing problem in current network;

5) Confirm the acceptance standard of the project;
6) Confirm the interface with the customer;

2. Decide DT test plan
DT test plan needs negotiation with customer. Commonly the following items need confirming;
1) Confirm test date;
2) Confirm test parameters: Calling mode is long call test or sequence call test; bury hour test, without load test or with load test?
3) Confirm test route:

3. Preparation for DT test
1) Confirm vehicle is available and smoke lighter is OK;
2) Check all the equipments for DT test and prepare the cell site information table for software;
3) Some other accessories (like backup battery for handset);

4. DT test According to the designing test route, start test. Attention the following points in test:
1) DT test engineer should cooperate with driver well in test, and help driver to be clear about the route;
2) Save the test data correctly and the save file is better to use “ xxxxx year xx month xx day xx place xx objective” format.
3) In DT test procedure, attention to observe the related parameters: Ec/Io, Rx Power, Tx Power, Tx-Adj, FFER and this can help to understand the possible problem of network in time;
4) Attention the environment geography change in test:
5) If there is sudden drop call, origination failure or handoff failure, write down the position and go back here to teat again after all DT test, this is better to accumulate data for analyzing;
6) In test procedure, if than abnormal things happen, like replacing handset battery and notebook battery or other things, it is better to process in the same place, in order to keep the test data integrity.

5. DT data analyzing
After test, the right analyzing for test data is the key and this analyzing also can reflect the optimization engineer technical level very much. According to the data analyzing with software, the network coverage quality and problem can be found and then the adjustment scheme will be decided to solve and improve the problem; The detailed analyzing procedures will be discussed next.

6. Decide adjustment scheme
According analyzing result, decide adjustment scheme. For the concrete problem, there may be several schemes to select. List them in priority;

7. Adjustment scheme implement
Give the scheme to operator to implement. Because the adjustment is very important, so optimization engineer should take part in implementation if necessary.

8. Validate DT test
Judge if the adjustment is effective according to validate test;

9. Judge if the requirement is satisfied.
According to validate test result, judge if the original optimization requirement is satisfied, or locate the problem reasons and then write the optimization report, the optimization project is finished; If can not, the new adjustment scheme should be decided or analyze the test data again,

 

 

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