[srslte-users] Rapid scan

[Johann T.]

Hi Balthasar,

You should be able to see a cell with cell_search even when there is no
traffic. Perhaps the signal is too weak?

I tested the cell_search function on LTE 800, 900, 1800 and 2600 MHz
(European bands). All worked perfectly, with bandwidth of 10 and 20 MHz.

By the way, I am using a wideband Kathrein antenna which supports all the
frequencies.

Regards,
Yohan


On Tue, Dec 13, 2016 at 10:48 AM, Balthasar Indermuehle <balt at inside.net>
wrote:

> Thanks Johann,
>
> I've found that, thanks. It's in srsLTE in case anyone else is looking for
> it.
>
> I'll customise cell_search to spawn a SIB1 decoder with a second radio for
> every cell found.
>
> In that note, am I correct in my observation that a tower with zero
> traffic will not be visible by purely passive cell_search? I notice that
> for my locations I tested, only one to maximum 3 frequencies have any
> traffic in them, one always being the same EARFCN my iPhone is connected
> on.
>
> Cheers
>
> Balthasar
>
> On Tuesday, 13 December 2016, Johann T. <johann.tzt at gmail.com> wrote:
>
>> Hi Balthasar,
>>
>> You can simply use the cell_search example in the srslte code. I tried it
>> before, it worked fine.
>>
>> Regards,
>> Johann
>>
>>
>> On Mon, Dec 12, 2016 at 12:39 PM, Balthasar Indermuehle <balt at inside.net>
>> wrote:
>>
>>> Hi all
>>>
>>> I'm new to the srsUE code. I noticed the location area code was missing
>>> from the SIB1 printout but was quickly able to locate it in the SIB1 data
>>> structure so I can now quickly get the full base station info on a
>>> given frequency.
>>>
>>> My goal ultimately is to rapidly scan the entire DL band to see what
>>> base stations are available. Does anyone have an idea how to implement this
>>> in srsUE, does it already exist and I haven't seen it, or is it just nose
>>> to the grindstone coding from here? Fine if that's what is of course, just
>>> not keen on duplication of effort.
>>>
>>> Cheers
>>>
>>> Balthasar
>>>
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>>>
>>>
>>
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