[srslte-users] SrsUE USRP porting time out problem

Ismael Gomez ismael.gomez at softwareradiosystems.com
Wed Nov 16 08:11:01 UTC 2016


Are you using next branch for srsLTE and UE?

On Wed, Nov 16, 2016, 08:47 Nick Ho <nick133371 at gmail.com> wrote:

> Hi, Ismael,
>
> No, it still show "Timeout while synchronizing SFN" or sync error like
> the following picture, thanks you.
>
> Nick
> [image: 內置圖片 1]
>
>
> 2016-11-15 22:17 GMT+08:00 Ismael Gomez <
> ismael.gomez at softwareradiosystems.com>:
>
> Hi Nick,
>
> Can it always connect if you don't restrict the CPU affinity set using
> taskset?
>
> On Tue, 15 Nov 2016 at 10:20 Nick Ho <nick133371 at gmail.com> wrote:
>
> Hello everyone,
>      I used B210 to port the srsUE latest version to ower own eNB, but it
> shows the following problem, my CPU is 4 cores. Sometimes , it dosen't
> decode MIB even.
>
> nick at nick-Aspire-V5-471PG:~/srsUE/build/ue/src$ sudo taskset -c 2-3 ./ue
> ue.conf
> linux; GNU C++ version 4.8.4; Boost_105400; UHD_3.11.0.git-28-gc66cb1ba
>
> ---  Software Radio Systems LTE UE  ---
>
> Reading configuration file ue.conf...
> Using srsLTE version 001.003.000
> 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
> -- Setting master clock rate selection to 'automatic'.
> -- Asking for clock rate 16.000000 MHz...
> -- Actually got clock rate 16.000000 MHz.
> -- Performing timer loopback test... pass
> -- Performing timer loopback test... pass
> -- Asking for clock rate 32.000000 MHz...
> -- Actually got clock rate 32.000000 MHz.
> -- Performing timer loopback test... pass
> -- Performing timer loopback test... pass
> Setting frequency: DL=2680.0 Mhz, UL=2560.0 MHz
> Searching for cell...
> Found CELL ID: 1 CP: Normal  , CFO: 1.2 KHz.
> Trying to decode MIB...
>  - Cell ID:         1
>  - Nof ports:       2
>  - CP:              Normal
>  - PRB:             15
>  - PHICH Length:    Normal
>  - PHICH Resources: 1
>  - SFN:             0
> MIB received BW=3 MHz
> Initializating cell configuration...
> Setting Sampling frequency 3.84 MHz
> Timeout while synchronizing SFN
> Timeout while synchronizing SFN
>
> Best regards,
> Nick.
>
>
>
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