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Dear Guys
I have one question about frequency scan with TEMS. During scan phone works as a scanner. If you are in the border between two countries (operators use the same frequencies of the both countries). For example I put to phone SIM of my operator and start to scan. I think I will see the strongest signal (selected frequencies), doesn’t matter from which operator. Right or not??? Even MCC & MNC selected.Please confirm, am I right in this situation or not???
The TEMS scanner just scans, no matter which MNC or MCC.
I think it even works without the SIM card, doesn’t it?
Ok, but when the phone is in “Idle Mode” and it measures signals. For examp.
ARFCN RxLev
2 -62
8 -72
16 -78
54 -84But in the same place we scan frequencies and can see more strongest signals:
Freq. RxLev
1 -78
2 -62
3 -83
4 -75
5 -86
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.
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Why phone cann’t measure the same signals in Idle Mode. I mean in TEMS.Thanks
I see that frequency 2 is at -62dBm, in the scan and in the idle mode.
all other frequencies are different so you can’t compare.I don’t want to compare, just my question is: for example:
in the same place phone can scan signal -78dbm (freq:1), but in Idle Mode cann’t measure this signal. Also all this band is belongs to the same Operator.
It means that freq 1
a/ either it is not a BCCH
b/ or it is a BCCH, but then it means it is not defined as a neighbour of the cell on which you’re camping on.MS can scan the signal, but it is not reported by the MS in the measurements in idle mode.
Thanks Pix
So it means
1. In scan mode the phone scans all broadcasting signals (TCHs & BCCHs).
2. But in Idle Mode the phone measures only BCCHs.
Yes 🙂
2. / Only BCCH’s that are included in the neighbour list
I think
In idle mode the phone measures all BCCHs, not only neighbour cells. It measures neighbour cells only in dedicated mode. Right?Thyanks
Yups,,you’re right.
No, you are not correct.
The Ms will listen only to neighbour BCCHs which are listed in the SI5 and SI5ter of the current serving cell.Only when the MS is switched on, it MAY scan all frequencies in order to find the strongest available/authorized BCCH.
Ok Pix Thanks
Many time I see cells in TEMS, but these cells were not defined as adjacent. I mean in IDLE mode. How is it possible in your case.The cell’s BCCH is included in IDLE MF List. Thatswhy in TEMS you are seeing those BCCHs and their RXlevels, because MS is trying to listen to all BCCH present in Idle MF list of current serving cell.
User2010,
TEMS is not a standard MS 🙂 You should have said that you were using TEMS in the first post 🙂
In tems, yes, all frequencies are scanned, even if they are not neighbours. But the ones which are neighbours have a certain colour, aren’t they ? (i’m really not sure anymore)
Cheers,
Pix
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