srsRAN_Project

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Issue Description

I am using two x310 USRPs to follow this tutorial. (https://docs.srsran.com/projects/project/en/latest/tutorials/source/srsUE/source/index.html)

This gnb.yml file worked fine when I was using before this Commit ef983b6, now I changed my srsRAN_Project to the newest commit and I updated my yml file accordingly. However even when I changed the coreset0_index to 0, it is giving me this error, "number of PRBs for PUCCH exceeds the 50% of the BWP PRBs".

When I change coreset0_index to 1 or above, I get this message, "Unable to derive a valid SSB pointA and k_SSB for CORESET#0 index=1, SearchSpace#0 index=0 and cell bandwidth=5MHz"

My computer's computing power is not good so if I go up to 10MHz I see too many overflows, this is why I want to use 5MHz.

What should I do?

Setup Details Two USRP X310s Ubuntu 22.04 I am using the open5gs docker inside the project as instructed. I have attached my configuration files both for UE and gNB.

<<gnb.yml>> cu_cp: amf: addr: 10.53.1.2 port: 38412 bind_addr: 10.53.1.1 supported_tracking_areas: - tac: 7 plmn_list: - plmn: "00101" tai_slice_support_list: - sst: 1
inactivity_timer: 7200

ru_sdr: device_driver: uhd device_args: type=x300,addr=192.168.10.2,num_recv_frames=512,num_send_frames=512,send_frame_size=1472,recv_frame_size=1472,recv_buff_size=52428800,send_buff_size=52428800, recv_buff_size=52428800 clock: internal srate: 7.68 tx_gain: 20 rx_gain: 25

cell_cfg: dl_arfcn: 368500 band: 3 channel_bandwidth_MHz: 5 common_scs: 15 plmn: "00101" tac: 7 pdcch: dedicated: ss2_type: common dci_format_0_1_and_1_1: false common: ss0_index: 0 coreset0_index: 0 prach: prach_config_index: 1

log: filename: /home/tmp/gnb.log
all_level: debug

pcap: mac_enable: enable
mac_filename: /tmp/gnb_mac.pcap
ngap_enable: enable
ngap_filename: /tmp/gnb_ngap.pcap

<<ue_rf.conf>> [rf] freq_offset = 0 tx_gain = 40 rx_gain = 60 srate = 7.68e6 nof_antennas = 1

device_name = uhd device_args = type=x300, addr=192.168.10.4,master_clock_rate=184.32e6,num_recv_frames=512,num_send_frames=512,send_frame_size=1472, recv_frame_size=1472,clock=internal,sync=internal,recv_buff_size=52428800, send_buff_size=52428800 time_adv_nsamples = 100

[rat.eutra] dl_earfcn = 2850 nof_carriers = 0

[rat.nr] bands = 3 nof_carriers = 1 max_nof_prb = 25 nof_prb = 25

[pcap] enable = none mac_filename = /tmp/ue_mac.pcap mac_nr_filename = /tmp/ue_mac_nr.pcap nas_filename = /tmp/ue_nas.pcap

[log] all_level = info phy_lib_level = none all_hex_limit = 32 filename = /home/tmp/ue.log file_max_size = -1

[usim] mode = soft algo = milenage opc = 63BFA50EE6523365FF14C1F45F88737D k = 00112233445566778899aabbccddeeff imsi = 001010123456780 imei = 353490069873319

[rrc] release = 15 ue_category = 4

[nas] apn = srsapn apn_protocol = ipv4

[gw] #netns = ue1 #ip_devname = tun_srsue #ip_netmask = 255.255.255.0

[gui] enable = false

[expert] lte_sample_rates = true