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View Full Version : Question Huawie HSDPA CQI values higher than 30



white_Noise
2013-02-03, 04:53 PM
Hi gents,

As per my knowledge, the CQI value should range between 0 and 30, but in Huawei, the values are up to 35 !! Knowing that I have values in the counters for CQI values 31, 33, and 35 and zero in the 32 and 34 counters , and the max configuration we have is 3 carriers per cell..

Please support..

Handover24
2013-02-04, 02:10 AM
I hope this will usefull from Hed-ex :
The preceding counters indicate the overall distribution of the channel quality. For each Channel Quality Indicators (CQI) value, the NodeB counts the number of CQIs received in a cell during a measurement period. The CQI values range from 0 to 35. For DC-HSDPA users, the counter will be counted in anchor and supplementary carrier separately. For non-64QAM users, the values of VS.CQI.0 to VS.CQI.30 correspond to the values of CQI0 to CQI30 reported by a UE. For 64QAM users, the values of VS.CQI.0 to VS.CQI.25 correspond to the values of reported CQI0 to CQI25; the value of VS.CQI.27 corresponds to the value of reported CQI26; the value of VS.CQI.29 corresponds to the value of reported CQI27; the value of VS.CQI.31 corresponds to the value of reported CQI28; the value of VS.CQI.33 corresponds to the value of reported CQI29; the value of VS.CQI.35 corresponds to the value of reported CQI30.

Handover24
2013-02-04, 02:17 AM
please do not forget to add reputation :rolleyes:

white_Noise
2013-02-04, 02:24 PM
Can you please let me know under which subjet in Hedex did you find this? I already searched in Hedex with no luck..

I hope this will usefull from Hed-ex :
The preceding counters indicate the overall distribution of the channel quality. For each Channel Quality Indicators (CQI) value, the NodeB counts the number of CQIs received in a cell during a measurement period. The CQI values range from 0 to 35. For DC-HSDPA users, the counter will be counted in anchor and supplementary carrier separately. For non-64QAM users, the values of VS.CQI.0 to VS.CQI.30 correspond to the values of CQI0 to CQI30 reported by a UE. For 64QAM users, the values of VS.CQI.0 to VS.CQI.25 correspond to the values of reported CQI0 to CQI25; the value of VS.CQI.27 corresponds to the value of reported CQI26; the value of VS.CQI.29 corresponds to the value of reported CQI27; the value of VS.CQI.31 corresponds to the value of reported CQI28; the value of VS.CQI.33 corresponds to the value of reported CQI29; the value of VS.CQI.35 corresponds to the value of reported CQI30.

agenov
2013-02-04, 03:54 PM
these are NodeB level counters so check corresponding lib version of the nodeb type you have, for example "BTS3900 WCDMA_V200R013..hdx"


br
alex


Can you please let me know under which subjet in Hedex did you find this? I already searched in Hedex with no luck..

Handover24
2013-02-06, 03:25 AM
these are NodeB level counters so check corresponding lib version of the nodeb type you have, for example "BTS3900 WCDMA_V200R013..hdx"


br
alex
but also RAN feature documentation :D