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View Full Version : 2G --> 3G Cell reselection problem with some kind of handset



linhhy
2014-07-30, 08:14 PM
Dear,

Please help me to understand root cause of my problem.
My network has 2G --> 3G Cell reselection problem with some kind of handset, especially with Nokia handset, other ones almost is OK. The problem happened and was be solved in two cases:
1. Parameter change: fddReportingPriority: from Normal to High.
2. Network synchronization fixed: DAC word changed to 2048.

2G BSS and 3G RAN: NSN.

Brg,

thamug
2014-07-31, 01:46 AM
Hola, what is exactly your problem the UE is not attempting the reselection, or there is ping pong, or the reselection fails?

linhhy
2014-08-02, 03:38 PM
Hola, what is exactly your problem the UE is not attempting the reselection, or there is ping pong, or the reselection fails?

Some kind of handsets like Nokia Lumia, Iphone 5, .. cant cell reselection from 2G --> 3G (3G--> 2G cell reselection is OK). Other handset can do cell reselection fine.

plannerguy
2014-08-05, 06:19 PM
Pls check belwo setting QSRI and QSRP ..

Regards
Plannerguy

linhhy
2014-08-11, 12:24 PM
Pls check belwo setting QSRI and QSRP ..

Regards
Plannerguy

Of course,

M SI 2quater Rest Octets (hex data: e23c02e8 68bc2b2b 2b2b2b2b 2b2b2b2b 2b2b2b2b)
BA_IND: 1
3G-BA_IND: 1
MP_CHANGE_MARK: 1
SI2quater_INDEX: 1
SI2quater_COUNT: 1
Measurement Parameters
REPORT_TYPE: enhanced
SERVING_BAND_REPORTING: 2
3G Measurement Parameters
Qsearch_I: Search for 3G cells always
Qsearch_C_Initial: use Qsearch_I
FDD_Qoffset: -infinite (always select a cell if acceptable)
FDD_REP_QUANT: Ec/No
FDD_MULTIRAT_REPORTING: 2
FDD_Qmin: -16 dB (old value: -16 dB)
GPRS_3G_MEASUREMENT Parameters
Qsearch_P: Search for 3G cells always
3G_SEARCH_PRIO: yes (indicates if 3G cells may be searced when BSIC decoding is required)