[srslte-users] ENB: Invalid Cell Parameters and Error Parsing Cell Info

Fri Nov 30 15:18:40 UTC 2018

your cell id is too high. use a value between 0 and 503.

Better to use the default config and modify value by value to see what
causes the issue.

Cheers
Andre

On 30/11/18 16:00, devifr wrote:
> Andre,
> 
> Here's the ENB & EPC config files, as they were the only ones that I had
> modified.  With regards to the default config, I had not tried that. 
> I'll look up the default parameters, load them back in and see what
> comes of it.
> 
> #####################################################################
> #                   srsENB configuration file
> #####################################################################
> 
> #####################################################################
> # eNB configuration
> #
> # enb_id:         20-bit eNB identifier.
> # cell_id:        8-bit cell identifier.
> # tac:            16-bit Tracking Area Code.
> # mcc:            Mobile Country Code
> # mnc:            Mobile Network Code
> # mme_addr:       IP address of MME for S1 connnection
> # gtp_bind_addr:  Local IP address to bind for GTP connection
> # s1c_bind_addr:  Local IP address to bind for S1AP connection
> # n_prb:          Number of Physical Resource Blocks (6,15,25,50,75,100)
> # tm:             Transmission mode 1-4 (TM1 default)
> # nof_ports:      Number of Tx ports (1 port default, set to 2 for TM2/3/4)
> #
> #####################################################################
> [enb]
> enb_id = 0x19B
> cell_id = 0xFF
> phy_cell_id = 666
> tac = 0x0007
> mcc = 310
> mnc = 410
> mme_addr = 127.0.1.100
> gtp_bind_addr = 127.0.1.1
> s1c_bind_addr = 127.0.1.1
> n_prb = 100
> #tm = 4
> #nof_ports = 2
> 
> #####################################################################
> # eNB configuration files
> #
> # sib_config:  SIB1, SIB2 and SIB3 configuration file
> # note: when enabling mbms, use the sib.conf.mbsfn configuration file
> which includes SIB13
> # rr_config:   Radio Resources configuration file
> # drb_config:  DRB configuration file
> #####################################################################
> [enb_files]
> sib_config = sib.conf
> rr_config  = rr.conf
> drb_config = drb.conf
> 
> #####################################################################
> # RF configuration
> #
> # dl_earfcn: EARFCN code for DL
> # tx_gain: Transmit gain (dB).
> # rx_gain: Optional receive gain (dB). If disabled, AGC if enabled
> #
> # Optional parameters:
> # dl_freq:            Override DL frequency corresponding to dl_earfcn
> # ul_freq:            Override UL frequency corresponding to dl_earfcn
> (must be set if dl_freq is set)
> # device_name:        Device driver family. Supported options: "auto"
> (uses first found), "UHD" or "bladeRF"
> # device_args:        Arguments for the device driver. Options are
> "auto" or any string.
> #                     Default for UHD:
> "recv_frame_size=9232,send_frame_size=9232"
> #                     Default for bladeRF: ""
> # #time_adv_nsamples: Transmission time advance (in number of samples)
> to compensate for RF delay
> #                     from antenna to timestamp insertion.
> #                     Default "auto". B210 USRP: 100 samples, bladeRF: 27.
> # burst_preamble_us:  Preamble length to transmit before start of burst.
> #                     Default "auto". B210 USRP: 400 us, bladeRF: 0 us.
> #####################################################################
> [rf]
> dl_earfcn = 1930
> tx_gain = 100
> rx_gain = 40
> 
> #device_name = auto
> #device_args = auto
> #time_adv_nsamples = auto
> #burst_preamble_us = auto
> 
> 
> #####################################################################
> #####################################################################
> #                   srsEPC configuration file
> #####################################################################
> 
> #####################################################################
> # MME configuration
> #
> # mme_code:         8-bit MME code identifies the MME within a group.
> # mme_group:        16-bit MME group identifier.
> # tac:              16-bit Tracking Area Code.
> # mcc:              Mobile Country Code
> # mnc:              Mobile Network Code
> # apn:                  Set Access Point Name (APN)
> # mme_bind_addr:    IP bind addr to listen for eNB S1-MME connnections
> # dns_addr:         DNS server address for the UEs
> #
> #####################################################################
> [mme]
> mme_code = 0x1a
> mme_group = 0x0001
> tac = 0x0007
> mcc = 310
> mnc = 410
> mme_bind_addr = 127.0.1.100
> apn = srsapn
> dns_addr = 8.8.8.8
> 
> #####################################################################
> 
> Again, any suggestions are appreciated.
> 
> Derek
> 
> 
> On Fri, Nov 30, 2018 at 3:37 AM Andre Puschmann
> <andre.puschmann at softwareradiosystems.com
> <mailto:andre.puschmann at softwareradiosystems.com>> wrote:
> 
>     Can you post all your config files, please? Does it work with the
>     default ones?
> 
>     On November 30, 2018 4:14:36 AM GMT+01:00, devifr <devifr at gmail.com
>     <mailto:devifr at gmail.com>> wrote:
> 
>         I'm having the following error when I attempt to run /sudo
>         srsenb /with a Mini B200/:/
>         /
>         /
>         /[INFO] [UHD] linux; GNU C++ version 7.3.0; Boost_106501;
>         UHD_3.13.0.1-release
>         Opening USRP with args: type=b200,master_clock_rate=30.72e6
>         [INFO] [B200] Detected Device: B200mini
>         [INFO] [B200] Operating over USB 3.
>         [INFO] [B200] Initialize CODEC control...
>         [INFO] [B200] Initialize Radio control...
>         [INFO] [B200] Performing register loopback test...
>         [INFO] [B200] Register loopback test passed
>         [INFO] [B200] Asking for clock rate 30.720000 MHz...
>         [INFO] [B200] Actually got clock rate 30.720000 MHz.
>         Setting frequency: DL=1878.0 Mhz, UL=1783.0 MHz
>         Invalid cell parameters: nof_prb=100, cell_id=255
>         Error parsing Cell configuration
>         /
>         /
>         /
>         I've attempted to run the srsenb with all of the various
>         resource blocks.  I've had the same error message on all
>         attempts.  I've tried different DL channel numbers for different
>         bands.  All ending up with the same errors (the last two lines)
>         as above.  The enb.log only displays the following:
> 
>         /Built in Release mode using commit 1c015aab on branch master./
>         /
>         /
>         Any suggestions?
>         Thanks.
> 
>         //
> 

-- 
Andre Puschmann

Software Radio Systems (SRS)
http://www.softwareradiosystems.com

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