[srslte-users] Configuration sample for LimeSDR mini

[Rafael Diniz]

Btw, 15 prbs mode is working fine, even in my old lenovo T430 notebook.


On 5/1/19 7:28 PM, Rafael Diniz wrote:
> Thanks Francisco. I'll certainly test it!
> 
> Best regards,
> Rafael Diniz
> 
> On 4/29/19 6:17 AM, Francisco Paisana wrote:
>> Another piece of info - the new release coming in one week will make
>> prb6 more stable, in case you really need it.
>>
>> On Thu, Apr 25, 2019 at 9:10 PM Francisco Paisana
>> <francisco.paisana at softwareradiosystems.com
>> <mailto:francisco.paisana at softwareradiosystems.com>> wrote:
>>
>>     Hey Rafael,
>>
>>     I would suggest sharetechnote to get more comfortable with LTE. The
>>     explanations tend to be quite good. I definitely agree that smaller
>>     bandwidths are useful. However, 6 prbs has a lot of special cases to
>>     deal with, which are not yet completely solved. It might work fine
>>     in your setup, but no guarantees. 15 prbs is also light on the cpu,
>>     and does not have so many special cases, so I would suggest trying
>>     with that if possible.
>>
>>     Regards,
>>     Francisco
>>
>>     On Thu, Apr 25, 2019 at 6:48 PM Rafael Diniz <rafael at riseup.net
>>     <mailto:rafael at riseup.net>> wrote:
>>
>>         Hi Francisco,
>>
>>         Thanks! I feel the smaller bandwidth LTE mode can be useful for
>>         hardware
>>         with limited CPU and bus (between the CPU and RF frontend)
>>         capabilities,
>>         like the LimeNet micro.
>>
>>         Cheers,
>>         Rafael Diniz
>>
>>         On 4/24/19 6:32 AM, Francisco Paisana wrote:
>>         > Hey Rafael,
>>         >
>>         > I would in generally suggest experimenting with PRB > 6, as
>>         the prb==6
>>         > is still under test/improvement. If you really need to use
>>         PRB==6, your
>>         > problem can be fixed by editing the "sib.conf" file. You can
>>         find the
>>         > default sib.conf in the ~/.config/srslte folder. Look for
>>         > "prach_freq_offset" and swap its value from 2 to 0. This way
>>         the PRACH,
>>         > which is 6 PRB-wide, can fit in the UL band.
>>         >
>>         > Regards,
>>         > Francisco
>>         >
>>         > On Sat, Apr 20, 2019 at 5:38 PM Rafael Diniz
>>         <rafael at rhizomatica.org <mailto:rafael at rhizomatica.org>
>>         > <mailto:rafael at rhizomatica.org
>>         <mailto:rafael at rhizomatica.org>>> wrote:
>>         >
>>         >     Hi all,
>>         >
>>         >     I finally got my SIM cards, and now want to play with the
>>         srseNB. I
>>         >     tried with default config files (just modified the tx and
>>         rx ports to
>>         >     match LimeSDR mini ones), but no lucky yet, I can not see
>>         the network in
>>         >     the sole handset I tested (an LG one). EPC seems to be
>>         working fine and
>>         >     connects to the eNB.
>>         >
>>         >     I tried different earfcn and different number of blocks
>>         (btw, with n_prb
>>         >     = 6 I can not bring up srsenb with this error "Invalid PRACH
>>         >     configuration: frequency interval=(2, 8) does not fit into
>>         the eNB
>>         >     PRBs=(0,6)").
>>         >
>>         >     I'll do more investigation today, but if anyone could send
>>         me a working
>>         >     setup for the LimeSDR mini, I'd appreciate.
>>         >
>>         >     Thanks!
>>         >     Rafael Diniz
>>         >     Rhizomatica
>>         >
>>         >     _______________________________________________
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>>         >
>>
> 
> 
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