[srslte-users] SrsUE USRP porting time out problem

Nick Ho nick133371 at gmail.com
Wed Nov 16 08:19:09 UTC 2016


I use the latest version on github

2016-11-16 16:11 GMT+08:00 Ismael Gomez <
ismael.gomez at softwareradiosystems.com>:

> 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@
>> 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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