BTS3900 Data Configuration
-
Upload
adekunle-olopade -
Category
Documents
-
view
284 -
download
12
Transcript of BTS3900 Data Configuration
-
7/31/2019 BTS3900 Data Configuration
1/8
BTS3900 Data Configuration
This document is summarized from the 79 sites swapped last year, in the
passed swap, we made much small mistake which induced the result that
although the site could be up after cutover, but the performance was bad than
before. Here I will sweep over the whole configuration procedure, and
emphasize on the mistake we usually made before, pls everybody pay special
attention to the points that are stressed here
1. Configuration Procedure
Take the site T1833 as an example, S222/444, for reference only
1.1 Add site
Pls choose Active here, while the Cfg RFU by slot can be ignoredtemporary
2012-5-21 1, 8
-
7/31/2019 BTS3900 Data Configuration
2/8
1.2 Add cell
1.3 Configure site attribute
PAY SPECIAL ATTENTION HERE.
In 900M/1800M dual-frequency, two-cabinet, stack mode site, every pair of
GRFUs in a cabinet is connected to one CPRI port on the BBU, and the two GRFUs in
each pair are cascaded. The GRFUs in cabinet 1 are connected to CPRI ports 0, 2, and 4
on the BBU, and the GRFUs in cabinet 2 are connected to CPRI
For detailed info, pls refer to the file
1.3.1 Add RXU chain
Add 6 RXU chains in sequence
2012-5-21 2, 8
-
7/31/2019 BTS3900 Data Configuration
3/8
1.3.2 Add RXU
Refer to the corresponding relationship between cells and CPRI cable ports
on BBU, the words highlight in red before. 900M cells/GRFU should be
configured to SFP 0/2/4, 1800M cells/GRFUs should be configured to SFP 1/3/5,in cascade mode.
2012-5-21 3, 8
-
7/31/2019 BTS3900 Data Configuration
4/8
1.3.3 Bond logical TRX
TRXs should be even distributed to two boards, like 2+2 for 4-TRX cell and
3+3 for 6-TRX cell
1.3.4 Configure RXU attribute
For dual-GRFU cell, every GRFU should be configured to Single feeder
(1TX+2RX); for single-GRFU cell, the GRFU here should be Double feeder
(1TX+2RX).
Exception: some indoor sites with indoor antenna distribution system like
PICO system, considering PICO offer two jumper cables to one GRFU, but only
one TX and one RX, these sites should be configured to Double feeder
(1TX+1RX) . T1703/T1722/T1043/T1086 are these sites
1.3.5 Configure chain
Check how many E1 ports the original site has, add the ports if needed
1.3.6 Configure cell attribute
All the small points in the picture below must be same as before,
this heavily affects the performance if they are wrong.
2012-5-21 4, 8
-
7/31/2019 BTS3900 Data Configuration
5/8
Channel type for all the channels should be correct and half rate
switch should be open
Configure the same TRX No. as before, otherwise the TRX performance in
M2000 will be inconsistent with before
2012-5-21 5, 8
-
7/31/2019 BTS3900 Data Configuration
6/8
In order to match the power between BTS3900 and BTS312, you need to
configure the power here for each TRX, pls ask for help from Mr. Piers and
Chen
2012-5-21 6, 8
-
7/31/2019 BTS3900 Data Configuration
7/8
1.3.7 Configure site idle timeslots
The number of site idle timeslots should be as same as before,
meanwhile, one EDGE cell at least has 3 idle timeslots
1.3.8 Manually batch modify three parameters
Call Control --- Random Access Error Threshold --- 255 Channel Management --- Multi-density TRX Power Sharing --- None
Other Properties--- Support Half Rate
Check the following parameters and their value
Parameter Value
RACH Min.Access Level(dbm) -109
RACH Busy Threshold 16
RXLEV_ACCESS_MIN 8
BS-PA-MFRAMS 2 MultiframePeriod
Use Imm_Ass RetransmitParameter
Yes
STIRC Allowed Yes
1.3.9 Configure PTP BVC for every cell
1.3.10 Modify cfg mode
Modify site attribute Cfg RFU by slot to be yes
2012-5-21 7, 8
-
7/31/2019 BTS3900 Data Configuration
8/8
1.3.11 Manually synchronize the relative BSC6000 after swap
1.3.12 Write down power-off and power-on time and all work log, which is very important
for performance and on which the network problem(s) will be detected based.
2. DEMU and FMUs connection and configuration
1. DEMU
DEMU monitoring signal cable should be connected to MON 1 and
configured on slot 1
2. FMU and Fan Box
The monitoring signal cable should be cascaded connected between 900M
and 1800M cabinet fan boxes. The route is from MON 0 to 900M fan COM IN
port, and from 900M fan COM OUT to 1800M fan COM IN. Correspondingly,900M FMU should be configured on slot 8, while 1800M FMU is on slot 9
2012-5-21 8, 8