nptq rec 13.0.0 troubleshooting bss hardware - trx_bbsig-bs60
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8/12/2019 NPTQ Rec 13.0.0 TroubleShooting BSS Hardware - TRX_BBSIG-BS60
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SIEMENS
High Drop Call Rate Due to Hardware Problem in BS60
There is a site in inner city of Semarang, Mendoho ( BSM01D:37 ) . That site have a ad
high dro! ca"" and set#! fai"#re rate !erformance in 3 rdsector from $$nd%ovemer $001. &t can
e seen in fig#re 1 e"o'
Figure 1 Traffic Carried and Drop Call of site Mendoho 3rdsector
&f 'e see !arameter in number lost radio link TCH cause in Batrana, 'e fo#nd that the
fai"#re 'hich ha!!ens the most is Remote Transcoder Failure #! to $. &t can e seen on
Prepared by: NP&TQ CentralJava Area
Hardware ProblemNP&TQ
Semarang Central Java
231503628.doc
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ta"e 1 e"o'.
Table 1 Number lost radio link TCH cause
BSCID btsn LC CI DDate T!""E#$%red H
''ess(a%l)r
e
*ad%oL%n+(a%l)re *emoteTrans'oder(a%l)re
#!01' 3( 5 138
3
11)1*)01 0.5 0 0.5 0
#!01' 3( 5 138
3
11)20)01 0.5 0.166( 0.3333 0
#!01' 3( 5 138
3
11)21)01 0.5625 0.18(5 0.18(5 0.0625
#!01' 3( 5 138
3
11)22)01 0.0(1+ 0.0+2* 0.085( 0.8
#!01' 3( 5 138
3
11)23)01 0.015* 0 0.0+(6 0.*206
#!01' 3( 5 138
3
11)26)01 0.0(81 0 0.0*38 0.8281
#!01' 3( 5 138
3
11)2()01 0.0526 0 0.0526 0.8*+(
#!01' 3( 5 138
3
11)28)01 0.11+8 0 0.082 0.8033
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Hardware ProblemNP&TQ
Semarang Central Java
231503628.doc
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Figure 2 Number Lost adio Link TCH Cause from 1! No" #1 till 2$ No" #1
Figure3 Number Lost adio Link TCH Cause from 1! No" #1 till 2$ No" #1
&t can e seen from fig#re $,3, and ta"e 1, n#mer of "ost radio "in* T+ ca#se of remote
transcoder fai"#re occ#rred from $1st%ovemer, $001.
-rom a"arm meas#rement BS+ for rocessing /vent, 'e can fo#nd error &D :
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Hardware ProblemNP&TQ
Semarang Central Java
231503628.doc
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#o%t,are -rror AP Connect"on a"l/re
68
8100 0000 056( 001+ 0028 0A0( 0025 0001 0002 0000
#o%t,are -rror AP Connect"on a"l/re
68
8100 0000 056( 001+ 0028 0(0+ 0025 0001 0002 0000
#o%t,are -rror AP Connect"on a"l/re
68
8100 0000 056( 001+ 0028 021+ 0025 0001 0002 0000
#o%t,are -rror AP Connect"on a"l/re
68
8100 0000 056( 001+ 0028 0-1 0025 0001 0002 0000
#o%t,are -rror AP Connect"on a"l/re
68
8100 0000 056( 001+ 0028 0118 0025 0001 0002 0000
#o%t,are -rror AP Connect"on a"l/re
68
8100 0000 056( 001+ 0028 0*0 0025 0001 0002 0000
#o%t,are -rror AP Connect"on a"l/re
68
8100 0000 056( 001+ 0028 015 0025 0001 0002 0000
#o%t,are -rror AP Connect"on a"l/re
68
8100 0000 056( 001+ 0028 01' 0025 0001 0002 0000
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Hardware ProblemNP&TQ
Semarang Central Java
231503628.doc
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&icture ( 'rror description of %& Connection Failure
Beca#se the va"#e in he2 , 'e have to convert to decima".
-
Cell T4 Cannel
%%%% $$$$
25 1 2
'-C
Cell T4 Cannel
%%%% $$$$
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Hardware ProblemNP&TQ
Semarang Central Java
231503628.doc
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3( 1 2
Base on dataase creation, Mendoho 3rdsector is BTS:37. That is means site Mendoho 3rd
sector ( BTS:37 ) on T4:1 and times"ot $ had a !ermanent !ro"em.
Base on error descri!tion aove, on 8th anuar! "00", 'e change BBS&5 mod#"e on
BTS:37 6 T4:1 and dro!!ed ca"" decrease as sho'n in !ict#re e"o'
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Hardware ProblemNP&TQ
Semarang Central Java
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&icture ) Drop call on Mendoho 3rdsector from 1 No" #1 till 2( *an #2
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Hardware ProblemNP&TQ
Semarang Central Java
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&icture + Drop call Mendoho 3rdsector after changing ,,-./ module
Table 3 Number of adio link loss TCH Cause after changing
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Hardware ProblemNP&TQ
Semarang Central Java
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BSCID btsn LC CI DDate T!""E#$%red H
''ess(a%l)re
*ad%oL%n+(a%l)re *emoteTrans'oder(a%l)re
#!01' 3( 5 138
3
12)25)0
1
0.03* 0.013 0.03* 0.*0*1
#!01' 3( 5 138
3
12)26)0
1
0.1111 0.013* 0.02(8 0.8+(2
#!01' 3( 5 138
3
1)1)02 0.066( 0.016( 0.0333 0.8833
#!01' 3( 5 138
3
1)2)02 0.1282 0.0256 0.0513 0.(*+*
#!01' 3( 5 138
3
1)8)02 0.1053 0.0526 0.1053 0.(368
#!01' 3( 5 138
3
1)*)02 0.25 0 0.(5 0
#!01' 3( 5 138
3
1)15)02 0.+0*1 0.0*0* 0.+0*1 0.0*0*
#!01' 3( 5 138
3
1)16)02 0.+ 0.1 0.5 0
#!01' 3( 5 138
3
3(2(8 0.5 0 0.5 0
#!01' 3( 5 138
3
3(2(* 0.666( 0 0.1111 0
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Hardware ProblemNP&TQ
Semarang Central Java
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&icture 0 Number loss radio link TCH Cause after changing
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Semarang Central Java
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Nbr Lost *ad%o L%n+ TCH Ca)se ,ter
0.00
20.00
+0.00
60.00
80.00
100.00
12)25)01
12)2()01
12)2*)01
12)31)01
1)2)02
1)+)02
1)6)02
1)8)02
1)10)02
1)12)02
1)1+)02
1)16)02
Date
0
T200-7p"red 4ad"o"n9a"l/re 4e:oteTran;codera"l/re
&icture $ /raph of number loss radio link TCH Cause after changing
-rom ta"e 3 and !ict#re ,7,8 aove, it sho'n there is no radio "in* "oss eca#se remote
trancoder fai"#re since 8th9an#ary $00$. nd the dro!!ed ca"" ecome norma" again aro#nd
1. for D+ and S-
Table ( DC and -F from prepcell for Mendoho 3rdsector
!endoo 3rd
#"te Nae 26
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Semarang Central Java
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