Ericsson 2G Cell Handling
Short Description
2G...
Description
Basics
1RBS = 3BTS (BTS covers 1 sector cell)
1RBS can 1RBS can handle up to 12 TRXs (1TRX TRXs (1TRX means 1 frequency)
An MO is a logical representation representation of H unit and ! of the BT! in the B!"
#n most cases one TG handles one RBS
One TG can TG can consist of up to 16 frequencies
TR$ (RB!%&&&) stands for transcei'er group 1 TR$ handles one frequency hich consist of * timeslots each timeslot needs 1+,-ps -andidth
AX. B!" /
RL commands RL commands used for cell handlin!
RX commands RX commands used for "ana!ed o#$ect handlin!
Managed o-0ects Bloc, iagram 1%Transceiver
Grou& (TG) 2%'entral unction (') 3%i!ital *ath (*) +%'oncentrator (',-) .%Transceiver Transceiver 'ontroller (TRX) 6%Trans"itter Trans"itter (TX) /%Receiver (RX) 0%nterface Sitch (S) %Ti"in! unction (T) 14%Ti"e Slots (TS)
DP CF
T F
RX T R X C 0
T X T S 0
I S
( UPT O1 6T RX Cs )
T S 7
8T S
T S 7
8T S
RX T R X C 1 5
T X T S 0
CON
Managed o-0ect -loc, diagram RB!%&&& (21%)
Managed o-0ect -loc, diagram RB!%&& (2&1)
Managed o-0ects Bloc, iagram 1%Transceiver
Grou& (TG) 2%'entral unction (') 3%i!ital *ath (*) +%'oncentrator (',-) .%Transceiver Transceiver 'ontroller (TRX) 6%Trans"itter Trans"itter (TX) /%Receiver (RX) 0%nterface Sitch (S) %Ti"in! unction (T) 14%Ti"e Slots (TS)
DP CF
T F
RX T R X C 0
T X T S 0
I S
( UPT O1 6T RX Cs )
T S 7
8T S
T S 7
8T S
RX T R X C 1 5
T X T S 0
CON
Managed o-0ect -loc, diagram RB!%&&& (21%)
Managed o-0ect -loc, diagram RB!%&& (2&1)
RB! %&&& family
RB! %%&+ Hardare o'er'ie
X$3%1 istri-ution !itch $nit
X5
"entral control unit for RB!
lashcard ma,es it possi-le to change a faulty X$ card ithout the need for loading RB! softare from the B!"
,T is the RB! configuration tool4 All the RB! configuration data and the softare stored in flash memory card (si5e/ 6%M-)4 "onfiguration file/ ld-4d--4
istri#ution Sitch 5nit unctions
' "entral 7unction/ the control part of a T24 The B!" communicates ith the "7 using layer % 8A9 address/ T.# : +%4
',- 8A9 concentration for RB! %&&&4
S #nteror,ing !itch/ system interface to the % M-it;s lin, connects time slots to transcei'ers4
T Timing 7unction synchroni5ation ith 9"M lin, and generates a timing reference for the RB!4
* igital 9ath 8ayer 1 each of the 9"M systems terminating in T2 has an associated super'ision o-0ect the 94
dTR$ < dou-le Transcei'er $nit
"ontains 2 TRXs for transmission and reception of carriers4
-uilt3in com-iner ith the possi-ility of com-ining to TX signals into one output4
9repared for RX di'ersity
dTR$ 3 Transcei'er $nit functions
TRX' The transcei'er controller is controlling all the functions for signal processing Radio recei'ing and Radio Transmitting4
RX The recei'er pro'ides the functionality for one transcei'er4
TX The transmitter pro'ides the radio frequency transmission functionality on a time slot -asis for eight T!s using different time slot num-ers4
radio
frequency
reception
"$ = "X$
'o"#iners ('5)
#nterface -eteen the transcei'ers (TR$) and the antenna system4
!ignals are filtered -efore transmission and after reception ith -andpass filters4
RB! %%&+ ma>imum 6 "$
"$37 used for high capacity solutions (Base-and hopping)
"$32 is the most common used it can -e configured either for high capacity or high co'erage4 #t supports synthesi5er hopping
'onfi!uration Sitch 5nit ('X5)
istri-utes the RX signal from "$ to dTR$s
Built up ! controlled sitches
Ma,es it possi-le to reconfigure a ca-inet ithout ca-le mo'ing
Other Hardare $nits
!tandard H units
A""$3&1/ A" connection unit ""$/ " "onnection unit 7"$/ 7an "ontrol $nit #M istri-utes the internal %?@ " poer to all other units 9!$ 9oer !upply unit " filter Battery 7use unit (outdoor ca-inets) "limate unit 7*' #us8 o&tical ca#le #us9 for alar" si!nalin!
Optional H units
:S5 (:ntenna Sharin! unit) is for co;sitin!9 hen other ca#inet used to!ether ith the RBS 2246 in the sa"e sector BB! -attery -ac,up system from e>ternal ca-inet ddT: i"&roves the receiver sensitivittF RL7'8 ".88:cell "2#:cgi B!#":-sic B""HGO:-cchno G.GAM.:nename A2B8:ag-l, M7RM!:mfrms B""HT9.:-cchtype 7GO77!.T:fnoffset XRAG2.:>rangeF "ell 9oer data configure print/ RL'*'9 RL'** "ell 7requency and hopping data print/ RL''9 RL'?* "hannel group configuration change RLG9 RL''' "ell data print/ RL7*8'7LL=@ "ell status/ RLST*8'7LL=@ "ell Resource RL'R*8'7LL=97T:L@ "ell remo'ing/ RL778'7LL=@ "ell neigh-or relation print/ RL-R*8'7LL=9cellr=all9nodata@
BT! logical configuration
RBS
RX,TG; X5 (h)
:;#is TG=Transceiver Grou& '='entral unction S=nterface Sitch T=Ti"in! unction ',-='onnector
RXO93DD3& RXO93DD31 RXO"OG3DD3&
RXOT73DD RXO#!3DD
RXO"73DD
TR5 (h) RXOTRX3DD
TR5 (h) RXOTRX3DD
RXOTX3DD3& RXORX3DD3&
RXOTX3DD31 RXORX3DD31
RXOT!3DD3&3& RXOT!3DD3&31 RXOT!3DD3&3% RXOT!3DD3&36 RXOT!3DD3&3? RXOT!3DD3&3I RXOT!3DD3&3+ RXOT!3DD3&3J
RXOT!3DD313& RXOT!3DD3131 RXOT!3DD313% RXOT!3DD3136 RXOT!3DD313? RXOT!3DD313I RXOT!3DD313+ RXOT!3DD313J
*=i!ital *ath TRX = Transceiver TX = Trans"ission RX=Receiver TS=Ti"eslot
Managed o-0ects definition
RXMO#/MO:RXOT23DD"OMB:HBR!#T.:M$"!ARO"!O2. !@.R:B??&%R&&D@F RXMO"/MO:RXOT23DD7HO9:!TRA"O:9OO8F RXMO"/MO:RXOT23DD"OG7A"T:%AB#!A88O":78.X#B8."OG7M:M#G#!TAHO9:O77F RXMO"/MO:RXOT23DDAB#!+?THR:&F RXMO#/MO:RXOT73DDT7MO.:!AF RXMO#/MO:RXO"73DDT.#:+%!#2:"OG"F RXMO#/MO:RXO#!3DDF RXMO#/MO:RXO"OG3DD"9:+?==*JF
RXMO#/MO:RXOTRX3DD3&T.#:&"91:1J*"9%:1JD==1*+F RXMO"/MO:RXOTRX3DD3&".88:?1JJ%A!#2:"OG"F RXMO#/MO:RXORX3DD3&RX:ABBAG:2!MD&&F RXMO#/MO:RXOTX3DD3&BAG:2!MD&&M9R:?JF RXMO"/MO:RXOTX3DD3&".88:?1JJ%AF
RXMO#/MO:RXOT!3DD3&3&==3JF
RXMO#/MO:RXOTRX3DD31T.#:1"91:1*J"9%:1**==1DIF RXMO"/MO:RXOTRX3DD31".88:?1JJ%A!#2:"OG"F RXMO#/MO:RXORX3DD31RX:ABBAG:2!MD&&F RXMO#/MO:RXOTX3DD31BAG:2!MD&&M9R:?JF RXMO"/MO:RXOTX3DD31".88:?1JJ%AF
RXMO#/MO:RXOT!3DD313&==3JF
Managed O-0ects !tates
"ell acti'ation
14 "onnect transmission
RXA9#/MO:RXOT231.@:RB8T6366==3+6"9:1==61F
RXA99/MO:RXOT231F
TB8./#9:1RB86F
B8O./.@:RB8T6366==3+6F
%4 e-loc,ing of managed o-0ects
RX.!#/MO:RXOT23& !$BORF (#t can ta,e a f e minutes especially hen flash card is not pre3loaded ith the BT! softare)
64 Acti'ate "ell
RXB8./MO:RXOT23& !$BORF
R8!T"/".88:?1JJ%A!TAT.:A"T#@.F
?4 "hec, cell data
RX"9/MO:RXOT231F
R8"R9/".88:?1JJ%AF
RXM79/MO:RXOT231!$BOR7A$8TF
"hec, cell resources
RL'R*8'7LL=:LL@ shos some cells are don/ KR8"R9/".88:A88F ".88 R.!O$R".! ".88 B""H "B"H !""H GOO7T"H 7$R16*" 1 1 J 1%3 %? 7$R16*B 1 1 J 1?3 %* 7$R16*A 1 1 J 1?3 %* 2A?16?" & & & & 2A?16?B & & & & 2A?16?A & & & & 7$R16*A 1 1 J 1?3 %* 9!A16I" 1 1 J 1?3 %* 9!A16IB 1 1 J 1?3 %* L L L
RL'R*8'7LL=:LL@ shos some cells are don4
R8"R9 lists only cells in acti'e state
"ommand can -e used R8"R9/".88:A88detailedF sitch for more information
hen using this command for one cell detailed information ill -e printed automatically
"hec, alarms and find T2
An easy ay to recogni5e a cell ithout all resources a'aila-le to run A88#9 or A88#9/9R"A:?6F a@> BTS? RA)I *+CEI%ER A)MI$ISTRATI$ MA$AGE) B,ECT STAT'S M R*TG+204 R*C(+204 999
STATE PER PER
BLSTATE
BL 0000 0000
BLA 0000 0000
LM
BTS STA STA
C$(
RXOTS-204-9-2 RXOTS-204-9-3 ...
COM COM
MBL MBL
0000 0000
0202 0202
0940 0940
DIS DIS
UNCONF UNCONF
The command RXM!9 ith the parameters !$BORN gi'e us the information a-out the status of all the MO in the T24 There are to Time slots (RXOT!3%&?3D3% = RXOT!3%&?3D3 6) manually -loc,4 BLST: T7
7S'R*T,-
BLL
Load in progress. The Managed Object may be blocked or in operation.
BLT
Blocked due to testing.
MBL
Manually blocked.
BL
Automatically blocked.
BLA
Blocked due to activity needed.
"hec, .1 configuration :*5S:G7
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