Nokia Solutions and Networks T5EL1 Manuel D’Utilisation

68P09258A31–A

Oct 2003

1X SCt 4812T BTS Optimization/ATP

D-2

Table D-1 outlines the relationship between the total of all code domain

channel element gain settings (digital root sum of the squares) and the

BBX Gain Set Point between 33.0 dBm and 44.0 dBm. The resultant RF

output (as measured at the top of the BTS in dBm) is shown in the table.

The table assumes that the BBX Bay Level Offset (BLO) values have

been calculated.

As an illustration, consider a BBX keyed up to produce a CDMA carrier

with only the Pilot channel (no MCCs forward link enabled). Pilot gain

is set to 262. In this case, the BBX Gain Set Point is shown to correlate

exactly to the actual RF output anywhere in the 33 to 44 dBm output

range. (This is the level used to calibrate the BTS).

Table D-1: BBX Gain Set Point vs. Actual BTS Output (in dBm)

dBm’

Gainb

–

–

–

–

–

–

–

43.3

42.3

41.3

40.3

39.3

–

–

–

–

–

–

–

43.2

42.2

41.2

40.2

39.2

–

–

–

–

–

–

44

43

42

41

40

39

–

–

–

–

–

–

43.9

42.9

41.9

40.9

39.9

38.9

–

–

–

–

–

–

43.8

42.8

41.8

40.8

39.8

38.8

–

–

–

–

–

–

43.6

42.6

41.6

40.6

39.6

38.6

–

–

–

–

–

–

43.5

42.5

41.5

40.5

39.5

38.5

–

–

–

–

–

–

43.4

42.4

41.4

40.4

39.4

38.4

–

–

–

–

–

–

43.2

42.2

41.2

40.2

39.2

38.2

–

–

–

–

–

–

43.1

42.1

41.1

40.1

39.1

38.1

–

–

–

–

–

43.9

42.9

41.9

40.9

39.9

38.9

37.9

–

–

–

–

–

43.8

42.8

41.8

40.8

39.8

38.8

37.8

–

–

–

–

–

43.6

42.6

41.6

40.6

39.6

38.6

37.6

–

–

–

–

–

43.4

42.4

41.4

40.4

39.4

38.4

37.4

–

–

–

–

–

43.3

42.3

41.3

40.3

39.3

38.3

37.3

–

–

–

–

–

43.1

42.1

41.1

40.1

39.1

38.1

37.1

–

–

–

–

44

43

42

41

40

39

38

37

–

–

–

–

43.8

42.8

41.8

40.8

39.8

38.8

37.8

36.8

–

–

–

–

43.6

42.6

41.6

40.6

39.6

38.6

37.6

36.6

–

–

–

–

43.4

42.4

41.4

40.4

39.4

38.4

37.4

36.4

 . . . continued on next page