quectel test on srsRAN4G (PING)

[pchat-imm]

I used to use UE as samsung a7 and successful with it. Right now I want to use Quectel RM510Q-GL with sysmocom sim card as UE.
Currently I can only ping using 'AT+QPING=1,"8.8.8.8" on minicom
when I run 'AT+QPING=1,"8.8.8.8"' on minicom
the screen show

at+qping=1,"8.8.8.8"                                                            
OK                                                                              
 +QPING: 569   

and the tracer of gNB (BladeRF) showing

               -----------------DL----------------|-------------------------UL-------------------------
rat  pci rnti  cqi  ri  mcs  brate   ok  nok  (%) | pusch  pucch  phr  mcs  brate   ok  nok  (%)    bsr
lte    1   62   15   1    5   2.3k    6    0   0% |  23.4   23.1   40   18    79k   11    0   0%    0.0
lte    1   62   15   1    0      0    0    0   0% |   n/a   99.9    0    0      0    0    0   0%    0.0
lte    1   62   15   1    0      0    0    0   0% |   n/a   99.9    0    0      0    0    0   0%    0.0
lte    1   62   15   1    0      0    0    0   0% |   n/a   99.9    0    0      0    0    0   0%    0.0

The bit rate only occur once and never occur again. But I woud like to test for longer time. Is there a command for that? for ping continuously?

However, if you guys don't use QPING command, what other command you can use, to make quectel run continuously on srsRAN?

Currently I use
SDR: BladeRF A4
UE: Quectel RM510Q-GL with sysmocom sim card
And run srsRAN_4G with a core network from open5GS