LTE QCI

[saifadin]

Hi
How can we do the QCI Test in TEMS Investigation?
Do we need special test? i have DL/UL Throughput log file but i search for QCI, GBR, NGBR, AMBR but i did not find them!!!!!

Regards

[giegala]

Hi,

it will not be possible to determine exact QCI from drivetest alone, because QCI value is not signaled to UE. However, it is easy to say if it is GBR or n-GBR from looking at RLC setup in RRC reconfiguration message as shown below (RLC AM -> non-GBR, RLC UM -> GBR). If you know what are the differences in RLC setup for different QCIs, then you can know QCI as well.


c1 : rrcConnectionReconfiguration-r8
rrcConnectionReconfiguration-r8
radioResourceConfigDedicated
srb-ToAddModList
SRB-ToAddModList :
[0 ] :
srb-Identity : 2
rlc-Config : explicitValue
explicitValue
RLC-Config : am
ul-AM-RLC
t-PollRetransmit : ms45
pollPDU : pInfinity
pollByte : kBinfinity
maxRetxThreshold : t32
dl-AM-RLC
t-Reordering : ms35
t-StatusProhibit : ms0
logicalChannelConfig : explicitValue
explicitValue
priority : 3
prioritisedBitRate : infinity
bucketSizeDuration : ms300
logicalChannelGroup : 0
drb-ToAddModList
DRB-ToAddModList :
[0 ] :
eps-BearerIdentity : 5
drb-Identity : 1
pdcp-Config
discardTimer : infinity
statusReportRequired : True
headerCompression : notUsed
rlc-Config
RLC-Config : am
ul-AM-RLC
t-PollRetransmit : ms40
pollPDU : p32
pollByte : kB25
maxRetxThreshold : t8
dl-AM-RLC
t-Reordering : ms50
t-StatusProhibit : ms50
logicalChannelIdentity : 3
logicalChannelConfig
priority : 12
prioritisedBitRate : kBps64
bucketSizeDuration : ms300
logicalChannelGroup : 3

AMBR is implemented in eNB or CN (APN based), therefore it is not possible to see from TEMS.

You can also try tracing your TEMS in eNB. Then you'll see QCI being ordered by MME.

BR

[Mctest]

Hi
How can we do the QCI Test in TEMS Investigation?
Do we need special test? i have DL/UL Throughput log file but i search for QCI, GBR, NGBR, AMBR but i did not find them!!!!!

Regards

Hi!What is about messages:default EPS bearer activation or dedicated EPS bearer activation?For example with default bearer:
EPS QoS
QCI : (8) QCI 8
Access Point Name
Access Point Name Value : internet.gprs
PDN Address
Length : 5
PDN Type : (1) IPv4
IPv4
Address : 10.171.215.78
APN AMBR
APN AMBR for Downlink : 100000 kbps
APN AMBR for Uplink : 100000 kbps
Protocol Configuration Options