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View Full Version : Question How to analyze Timing Advance - RXLev distribution ?



diman
2012-02-21, 08:59 AM
Dear expert, Need your help how to analyze the Timing Advance - RXLev distribution.

Below is the TA-RxLev distribution which I take from measurement :



RXLev
TA0
TA1
TA2
TA3
TA4
TA5
TA6
TA7


RXLev_0
54334
141878
93326
22665
656
1036
997
119


RXLev_1
158853
379763
225621
47364
1082
1857
493
38


RXLev_2
490915
885009
398243
66644
1452
4078
364
16


RXLev_3
2000362
1930438
524039
55069
1668
6603
225
2


RXLev_4
2667739
2014834
399233
30860
1423
6674
169
0


RXLev_5
1272026
968624
170236
9740
2251
2628
67
0


RXLev_6
1083191
618483
90790
4018
3149
725
40
0


RXLev_7
335145
79083
7266
255
90
17
5
0




And I am still confuse how to analyze this data.
1. Is Ta0 means the distance (0*550 m - 7*550 m) from MS to BTS, TA1 (8*550 m - 15*550 m), and so on ?
2. How about the range for RXLev_0 , RXLev_1, ...RXLev_7 ?
3. Is this good distribution or not? or In what way we say that the TA-RXLev disribution is good? why ?

Many Thanks for your help :)

Muhammad Imran Rafique
2012-02-21, 03:13 PM
Hi Diman,

RxLev_0 is either -47 or -110 dBm, kindly check your setting, then next are TA samples. i.e. how many samples were collected from TA_0 when your level was -47 or -110 dBm.

Please let me know if it is still not clear. I can share more details

BR//
Imran