Hello Neels and Community,
Good day!
We are doing some testing on our Lab specifically in Voice. During this testing we
observed that the MS power transmit is not changing during ongoing call and the value is
5dbm. We also do walk test in order to lower the received power level and to observed if
the MS Transmit power will increase. We tried to change some parameters in osmo-bts-trx
uplink-power-target but however, the MS Transmit power still the same which is 5dbm. The
MS power in the osmo-nitb config is set to 23dbm. Below is the version and configuration
we used on our testing in Lab.
Version:
OpenBSC# show version
OpenBSC 1.3.2.2-d2550 (OpenBSC).
Copyright (C) 2008-2016 Harald Welte, Holger Freyther
Contributions by Daniel Willmann, Jan Lübbe, Stefan Schmidt
Dieter Spaar, Andreas Eversberg, Sylvain Munaut, Neels Hofmeyr
License AGPLv3+: GNU AGPL version 3 or later
<http://gnu.org/licenses/agpl-3.0.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
OpenBSC#
OsmoBTS# show version
OsmoBTS 1.2.0.48-6392 (OsmoBTS).
Copyright (C) 2010, 2011 by Harald Welte, Andreas Eversberg and On-Waves
License AGPLv3+: GNU AGPL version 3 or later
<http://gnu.org/licenses/agpl-3.0.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
OsmoBTS#
Logs:
OpenBSC# show lchan
BTS 0, TRX 1, Timeslot 0, Lchan 0: Type SDCCH
Connection: 1, State: ACTIVE
BS Power: 0 dBm, MS Power: 23 dBm
Channel Mode / Codec: signalling
Subscriber:
ID: 1816, Authorized: 0
Extension: 164324
IMSI: 515039102991665
Use count: 1
Bound IP: 0.0.0.0 Port 0 RTP_TYPE2=0 CONN_ID=0
Measurement Report:
Flags: DLinval
RXL-FULL-ul: -50 dBm, RXL-SUB-ul: -50 dBm RXQ-FULL-ul: 7, RXQ-SUB-ul: 7
BTS 0, TRX 1, Timeslot 6, Lchan 0: Type TCH_F
Connection: 1, State: ACTIVE
BS Power: 0 dBm, MS Power: 23 dBm
Channel Mode / Codec: FR or HR
Subscriber:
ID: 1782, Authorized: 1
Extension: 05837654321
IMSI: 515032920153135
Use count: 2
Bound IP: X.X.X.X Port 16386 RTP_TYPE2=0 CONN_ID=0
Measurement Report:
Flags:
MS Timing Offset: 0
L1 MS Power: 5 dBm, Timing Advance: 0
RXL-FULL-dl: -47 dBm, RXL-SUB-dl: -47 dBm RXQ-FULL-dl: 0, RXQ-SUB-dl: 0
RXL-FULL-ul: -47 dBm, RXL-SUB-ul: -47 dBm RXQ-FULL-ul: 0, RXQ-SUB-ul: 0
BTS 0, TRX 1, Timeslot 7, Lchan 0: Type TCH_F
Connection: 1, State: ACTIVE
BS Power: 0 dBm, MS Power: 23 dBm
Channel Mode / Codec: FR or HR
Subscriber:
ID: 4, Authorized: 1
Extension: 05831234567
IMSI: 515032919099978
Use count: 2
Bound IP: X.X.X.X Port 16384 RTP_TYPE2=0 CONN_ID=0
Measurement Report:
Flags:
MS Timing Offset: 0
L1 MS Power: 5 dBm, Timing Advance: 0
RXL-FULL-dl: -47 dBm, RXL-SUB-dl: -47 dBm RXQ-FULL-dl: 4, RXQ-SUB-dl: 5
RXL-FULL-ul: -47 dBm, RXL-SUB-ul: -47 dBm RXQ-FULL-ul: 7, RXQ-SUB-ul: 7
OpenBSC#
Ongoing Call Logs:
OpenBSC# show lchan summary
BTS 0, TRX 1, Timeslot 6 TCH/F, Lchan 0, Type TCH_F, State ACTIVE - L1 MS Power: 5 dBm
RXL-FULL-dl: -47 dBm RXL-FULL-ul: -47 dBm
BTS 0, TRX 1, Timeslot 7 TCH/F, Lchan 0, Type TCH_F, State ACTIVE - L1 MS Power: 5 dBm
RXL-FULL-dl: -47 dBm RXL-FULL-ul: -47 dBm
OpenBSC#
Osmo-BTS current config:
e1_input
e1_line 0 driver ipa
e1_line 0 port 0
no e1_line 0 keepalive
phy 0
osmotrx ip local 127.0.0.1
osmotrx ip remote 127.0.0.1
no osmotrx ms-power-loop
osmotrx base-port local 5800
osmotrx base-port remote 5700
osmotrx fn-advance 20
osmotrx rts-advance 5
instance 0
osmotrx rx-gain 0
osmotrx tx-attenuation 13
osmotrx maxdly 0
instance 1
osmotrx rx-gain 0
osmotrx tx-attenuation 10
osmotrx maxdly 0
bts 0
band GSM900
ipa unit-id 1000 0
oml remote-ip x.x.x.x
rtp jitter-buffer 100
paging queue-size 200
paging lifetime 0
uplink-power-target -75
gsmtap-sapi ccch
gsmtap-sapi pdtch
min-qual-rach 50
min-qual-norm -5
max-ber10k-rach 1707
trx 0
power-ramp max-initial 0 mdBm
power-ramp step-size 2000 mdB
power-ramp step-interval 1
ms-power-control dsp
phy 0 instance 0
trx 1
power-ramp max-initial 0 mdBm
power-ramp step-size 2000 mdB
power-ramp step-interval 1
ms-power-control dsp
phy 0 instance 1
Osmo-Nitb Current Config:
root@ubuntu:/etc/osmocom# cat osmo-nitb.cfg
!
log stderr
logging filter all 1
logging color 1
logging print category 0
logging timestamp 1
logging level all everything
logging level rll notice
logging level cc notice
logging level mm notice
logging level rr notice
logging level rsl notice
logging level nm info
logging level mncc notice
logging level pag notice
logging level meas notice
logging level sccp notice
logging level msc notice
logging level mgcp notice
logging level ho notice
logging level db notice
logging level ref notice
logging level gprs debug
logging level ns info
logging level bssgp debug
logging level llc debug
logging level sndcp debug
logging level nat notice
logging level ctrl notice
logging level smpp debug
logging level filter debug
logging level ranap debug
logging level sua debug
logging level pcu debug
logging level lglobal notice
logging level llapd notice
logging level linp notice
logging level lmux notice
logging level lmi notice
logging level lmib notice
logging level lsms notice
logging level lctrl notice
logging level lgtp notice
logging level lstats notice
logging level lgsup notice
logging level loap notice
logging level lss7 notice
logging level lsccp notice
logging level lsua notice
logging level lm3ua notice
logging level lmgcp notice
!
stats interval 5
!
line vty
no login
!
e1_input
e1_line 0 driver ipa
e1_line 0 port 0
no e1_line 0 keepalive
network
network country code 10
mobile network code 1
short name testnetwork
long name testnetwork
auth policy closed
authorized-regexp .*
location updating reject cause 13
encryption a5 0
neci 1
paging any use tch 0
rrlp mode none
mm info 1
handover 0
handover window rxlev averaging 10
handover window rxqual averaging 1
handover window rxlev neighbor averaging 10
handover power budget interval 6
handover power budget hysteresis 3
handover maximum distance 9999
timer t3113 60
timer t3103 1
timer t3101 10
timer t3109 1
timer t3122 10
timer t3105 1
dyn_ts_allow_tch_f 0
subscriber-keep-in-ram 1
bts 0
type sysmobts
band GSM900
cell_identity 1
location_area_code 1
base_station_id_code 63
ms max power 23
cell reselection hysteresis 4
rxlev access min 0
periodic location update 30
radio-link-timeout 32
channel allocator descending
rach tx integer 9
rach max transmission 7
channel-descrption attach 1
channel-descrption bs-pa-mfrms 5
channel-descrption bs-ag-blks-res 1
early-classmark-sending forbidden
ip.access unit_id 1000 0
oml ip.access stream_id 255 line 0
neighbor-list mode automatic
codec-support fr hr efr amr
amr tch-h modes 0
amr tch-h start-mode auto
gprs mode gprs
gprs 11bit_rach_support_for_egprs 0
gprs routing area 1
gprs network-control-order nc0
gprs cell bvci 2
gprs cell timer blocking-timer 3
gprs cell timer blocking-retries 3
gprs cell timer unblocking-retries 3
gprs cell timer reset-timer 3
gprs cell timer reset-retries 3
gprs cell timer suspend-timer 10
gprs cell timer suspend-retries 3
gprs cell timer resume-timer 10
gprs cell timer resume-retries 3
gprs cell timer capability-update-timer 10
gprs cell timer capability-update-retries 3
gprs nsei 101
gprs ns timer tns-block 3
gprs ns timer tns-block-retries 3
gprs ns timer tns-reset 3
gprs ns timer tns-reset-retries 3
gprs ns timer tns-test 30
gprs ns timer tns-alive 3
gprs ns timer tns-alive-retries 10
gprs nsvc 0 nsvci 101
gprs nsvc 0 local udp port 23000
gprs nsvc 0 remote udp port 23000
gprs nsvc 0 remote ip 127.0.0.2
gprs nsvc 1 nsvci 0
gprs nsvc 1 local udp port 0
gprs nsvc 1 remote udp port 0
gprs nsvc 1 remote ip 0.0.0.0
no force-combined-si
trx 0
rf_locked 0
arfcn 122
nominal power 0
rsl e1 tei 0
timeslot 0
phys_chan_config CCCH+SDCCH4
hopping enabled 0
timeslot 1
phys_chan_config SDCCH8
hopping enabled 0
timeslot 2
phys_chan_config SDCCH8
hopping enabled 0
timeslot 3
phys_chan_config TCH/F
hopping enabled 0
timeslot 4
phys_chan_config TCH/F
hopping enabled 0
timeslot 5
phys_chan_config TCH/F
hopping enabled 0
timeslot 6
phys_chan_config TCH/F
hopping enabled 0
timeslot 7
phys_chan_config TCH/F
hopping enabled 0
trx 1
rf_locked 0
arfcn 42
nominal power 0
rsl e1 tei 0
timeslot 0
phys_chan_config CCCH+SDCCH4
hopping enabled 0
timeslot 1
phys_chan_config TCH/F
hopping enabled 0
timeslot 2
phys_chan_config TCH/F
hopping enabled 0
timeslot 3
phys_chan_config TCH/F
hopping enabled 0
timeslot 4
phys_chan_config TCH/F
hopping enabled 0
timeslot 5
phys_chan_config TCH/F
hopping enabled 0
timeslot 6
phys_chan_config TCH/F
hopping enabled 0
timeslot 7
phys_chan_config TCH/F
hopping enabled 0
mncc-int
default-codec tch-f fr
default-codec tch-h amr
nitb
subscriber-create-on-demand
subscriber-create-on-demand random 100000 199999
no assign-tmsi
smpp
local-tcp-ip 127.0.0.1 2776
system-id password
policy closed
smpp-first
esme admin
password password
default-route
Rootubuntu:/etc/osmocom#
Regards,
Sonny Lafuente | Systems Engineer | Entropy Solution Philippines
Mobile: +639985365206 | Office: 028931781 | Email:
sonny.lafuente@entropysolution.com<mailto:sonny.lafuente@entropysolution.com>
Office Address: Unit 2103 Antel Corporate Centre 121 Valero St. Salcedo Village Makati
City Philippines 1227
[cid:936BCCE1-8AAB-4E96-8413-E1075D00DBE3]
Singapore * Philippines
Products:
Gridloc*Intelle*Hype*Lighthouse*Telco Services*Software Development
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