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