[srslte-users] run pdsch_enodeb and pdsch_ue on B210

[Ismael Gomez]

Hi,

Have you verified that you have signal coming out the pdsch_endoeb B210?

On Fri, 15 Jul 2016 at 10:47 wangdm at seu.edu.cn <wangdm at seu.edu.cn> wrote:

> Hi,
>
> I'm trying to do the example of srsLTE by using B210. I use the following
> commend, but I found pdsch_ue always "could not find any cell in this
> frequency".
>
> At one PC I got the following message:
>
> ~/src/srsLTE-master/build/srslte/examples$ sudo ./pdsch_enodeb -f
> 2450000000 -g 80
> linux; GNU C++ version 4.8.4; Boost_105400; UHD_003.009.002-0-unknown
>
> Opening RF device...
> Opening USRP with args: type=b200,recv_frame_size=9232,send_frame_size=9232
> -- Detected Device: B210
> -- Operating over USB 3.
> -- Initialize CODEC control...
> -- Initialize Radio control...
> -- Performing register loopback test... pass
> -- Performing register loopback test... pass
> -- Performing CODEC loopback test... pass
> -- Performing CODEC loopback test... pass
> -- Asking for clock rate 16.000000 MHz...
> -- Actually got clock rate 16.000000 MHz.
> -- Performing timer loopback test... pass
> -- Performing timer loopback test... pass
> -- Setting master clock rate selection to 'automatic'.
> -- Asking for clock rate 32.000000 MHz...
> -- Actually got clock rate 32.000000 MHz.
> -- Performing timer loopback test... pass
> -- Performing timer loopback test... pass
> Trying to dynamically change Master clock...
> -- Asking for clock rate 16.000000 MHz...
> -- Actually got clock rate 16.000000 MHz.
> -- Performing timer loopback test... pass
> -- Performing timer loopback test... pass
> Master clock is configurable. Using reduced symbol sizes and sampling
> rates.
> -- Asking for clock rate 23.040000 MHz...
> -- Actually got clock rate 23.040000 MHz.
> -- Performing timer loopback test... pass
> -- Performing timer loopback test... pass
> Setting sampling rate 5.76 MHz
> Set TX gain: 80.0 dB
> Set TX freq: 2450.00 MHz
> - Resource Allocation Type: Type 0
> + Resource Block Group Size: 2
> + RBG Bitmap: 0x1fff
> - Modulation and coding scheme index: 1
> - HARQ process: 0
> - New data indicator: No
> - Redundancy version: 0
> - TPC command for PUCCH: --
> - PRB Bitmap Assignment 0st slot:
> 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
> 21, 22, 23, 24,
> - PRB Bitmap Assignment 1st slot:
> 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
> 21, 22, 23, 24,
> - Number of PRBs: 25
> - Modulation type: QPSK
> - Transport block size: 904
> Type new MCS index and press Enter: Using Volk machine: avx_64_mmx
>
>
>
>
> At another PC I run pdsch_ue and get the following message:
>
> ~/src/srsLTE-master/build/srslte/examples$ sudo ./pdsch_ue -f 2450000000
> -r 1234
> linux; GNU C++ version 4.8.4; Boost_105400; UHD_003.009.002-0-unknown
>
> Opening RF device...
> Opening USRP with args: type=b200,recv_frame_size=9232,send_frame_size=9232
> -- Detected Device: B210
> -- Operating over USB 3.
> -- Initialize CODEC control...
> -- Initialize Radio control...
> -- Performing register loopback test... pass
> -- Performing register loopback test... pass
> -- Performing CODEC loopback test... pass
> -- Performing CODEC loopback test... pass
> -- Asking for clock rate 16.000000 MHz...
> -- Actually got clock rate 16.000000 MHz.
> -- Performing timer loopback test... pass
> -- Performing timer loopback test... pass
> -- Setting master clock rate selection to 'automatic'.
> -- Asking for clock rate 32.000000 MHz...
> -- Actually got clock rate 32.000000 MHz.
> -- Performing timer loopback test... pass
> -- Performing timer loopback test... pass
> Trying to dynamically change Master clock...
> -- Asking for clock rate 16.000000 MHz...
> -- Actually got clock rate 16.000000 MHz.
> -- Performing timer loopback test... pass
> -- Performing timer loopback test... pass
> Master clock is configurable. Using reduced symbol sizes and sampling
> rates.
> Starting AGC thread...
> -- Asking for clock rate 30.720000 MHz...
> -- Actually got clock rate 30.720000 MHz.
> -- Performing timer loopback test... pass
> -- Performing timer loopback test... pass
> Tunning receiver to 2450.000 MHz
> Searching for cell...
> Using Volk machine: avx_64_mmx
> Could not find any cell in this frequency
> Cell not found after 0 trials. Trying again (Press Ctrl+C to exit)
> Searching for cell...
> Could not find any cell in this frequency
> Cell not found after 1 trials. Trying again (Press Ctrl+C to exit)
> Searching for cell...
> Could not find any cell in this frequency
> Cell not found after 2 trials. Trying again (Press Ctrl+C to exit)
> Searching for cell...
> Could not find any cell in this frequency
> Cell not found after 3 trials. Trying again (Press Ctrl+C to exit)
> Searching for cell...
> Could not find any cell in this frequency
> Cell not found after 4 trials. Trying again (Press Ctrl+C to exit)
> Searching for cell...
> Could not find any cell in this frequency
> Cell not found after 5 trials. Trying again (Press Ctrl+C to exit)
> Searching for cell...
> Could not find any cell in this frequency
> Cell not found after 6 trials. Trying again (Press Ctrl+C to exit)
>
>
>
>
> I also try another program  cell_search,
>
> It also cannot find the cell from pdsch_enodeb. But this program can find
> commercial LTE cell around me.
>
> Thank you for your kind help.
>
> Best regards,
> Dongming
>
>
>
>
>
>
>
> ------------------------------
> wangdm at seu.edu.cn
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>
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