[srslte-users] Building srsLTE on RasPi 4 Buster...

[cswiger at swigerco.com]

Success with LimeSDR-Mini / Rpi4B using the latest LimeSuite,  
SoapySDR, and srsLTE.
Have the RPi/LimeSDR srsenb running with n_prb 25   92 to 97% of 1 cpu

Using srsue on a notebook with usrp b205mini and had to set  
time_adv_nsamples = 100
Trying a LimeSDR (non-mini) on the same notebook rarely connects,  
trying different time_adv, not even sure which antenna connectors are  
being used :)


srsue:
Waiting PHY to initialize ... done!
Attaching UE...
Searching cell in DL EARFCN=3400, f_dl=2685.0 MHz, f_ul=2565.0 MHz
Setting manual TX/RX offset to 100 samples
.
Found Cell:  Mode=FDD, PCI=1, PRB=25, Ports=1, CFO=0.8 KHz
Setting manual TX/RX offset to 100 samples
Found PLMN:  Id=00101, TAC=7
Random Access Transmission: seq=13, ra-rnti=0x2
Random Access Complete.     c-rnti=0xf7, ta=29
RRC Connected
Network attach successful. IP: 172.16.0.10
Software Radio Systems LTE (srsLTE)
Scheduling request failed: releasing RRC connection...
Random Access Transmission: seq=16, ra-rnti=0x2
Random Access Complete.     c-rnti=0xf7, ta=29



Quoting cswiger at swigerco.com:

> Others will know better, usual way on other projects is:
> /sbin/iptables -t nat -A POSTROUTING -o wlan0 -j MASQUERADE
>
>
> https://learn.sparkfun.com/tutorials/setting-up-a-raspberry-pi-3-as-an-access-point/enable-packet-forwarding
>
>
> On Fri, Oct 25, 2019 at 7:37 AM Ralph A. Schmid, dk5ras  
> <ralph at schmid.xxx> wrote:
>> Now I need to find a way to NAT between wlan0 and srs_spgw_sgi, to  
>> test internet access.