wiki:Tutorials/4G5G/srslte

Version 8 (modified by rifatbin, 13 days ago) ( diff )

—

Site Navigation

  1. COSMOS Testbed Overview
    1. Concepts
    1. Testbed Workflow
    1. Availability and Resource Status
    1. Events and Conferences
  6. Getting Started
    1. Make an Account
    2. Create and Configure SSH Keys
    3. Make a Reservation
    4. Log in to your Reservation
    5. Control Resources with OMF
    6. Run a Hello World Experiment
    7. Get Help and Support
  7. COSMOS/ORBIT User Guide
    1. The COSMOS Portal
    2. Connecting to the Testbed
    3. Running Experiments
    4. Policies and Support
    5. Quick Links
    1. Policies
    1. Account Creation
    1. Camera Streaming
    1. Scheduling and Reservations
    1. Disk Images
    1. Frequently Asked Questions
    1. Resource Control with OMF
  15. COSMOS Portal
    1. Your First Visit
    2. Setting Up Your Account
    3. Reserving Testbed Time
    4. Monitoring Your Experiment
    5. Connecting via SSH
    6. Managing Disk Images
    7. Joining the Community
    8. Browsing Users and Groups
    9. Tips
  16. Account Management
    1. Edit Profile
    2. Change Password
    3. SSH Keys
  17. Portal Dashboard
    1. Profile Card
    2. Usage Statistics
    3. Community Forum
  18. Directory
    1. Users
    2. Groups
    3. Privacy Note
  19. Disk Images
    1. Browsing Images
    2. Image Details
    3. Searching and Sorting
    4. Managing Your Images
    5. Baseline Images
    6. Saving Custom Images
    7. Storage and Retention
  20. Community Forum
    1. Accessing the Forum
    2. Forum Categories
    3. How to Use the Forum
    4. Forum Etiquette
    5. Privacy and Access
  21. Getting Started with the COSMOS Portal
    1. Creating an Account
    2. Logging In
    3. What to Do After Logging In
  22. SSH Access to Testbed Nodes
    1. Access Model
    2. Console Servers
    3. Basic Connection
    4. SSH Config File
    5. SSH Tunneling
    6. File Transfer
    7. Troubleshooting
  23. Scheduler
    1. Calendar View
    2. Reservation Colors
    3. Creating a Reservation
    4. Competing for a Slot
    5. Modifying or Canceling Reservations
    6. My Reservations
    7. Resource Information
  24. Testbed Status
    1. Node Status Grid
    2. RF Matrix Control (SB4)
    3. Understanding Node States During Experiments
    1. Remote Access
    1. Chrome Remote Desktop Setup Page
  27. Installing Chrome Remote Desktop (CRD) on a Custom Image
    1. Measurement & Result Collection
    1. Storage
    1. Support
    1. Contributing to the Wiki
  32. Tutorials
    1. SDR and Wireless
    2. Wireless Digital Twins
    3. Optical Networking
    4. Wired Networking
    5. Edge Computing
    6. 4G/5G Systems
    7. Orchestration Platforms
  33. Architecture
    1. Data Flow
    1. Deployment Map
    1. Domains
    1. Naming Convention
    1. Networks
    1. Optical
  40. Resources, Services and APIs
    1. RF Control
    2. SDR Control
    3. Compute Control
    4. Network Control
    5. Optical Control
  41. Datasets
  42. Hardware Info
    1. Cameras
    1. Compute
    1. FR3 SDRs
    1. Network
    1. Nodes
    1. Optical
    1. RF Subsystems
    1. Antennas
    1. Full-Duplex Radio
    1. RF Front End
    1. Software Defined Radios (SDR)
  54. RF Policies & Compliance
    1. Outdoor Radio Frequency Allocation
    2. Program Experiment License
    3. Spectrum Monitoring
    4. Emergency Stop Procedures
    5. Network and Platform Security

srsRAN 5G network in COSMOS SB1

srsRAN is an open-source software radio suite for 4G/5G provided by SRS(Software Radio Systems). The srsRAN suite includes: srsUE - a full-stack SDR 4G/5G UE application srsENB - a full-stack SDR 4G/5G e(g)NodeB application srsEPC - a light-weight 4G core network implementation with MME, HSS and S/P-GW Source code for srsRAN can be found ​here and documentation can be found ​here

Description

This tutorial contains instructions for setting up a 4G/5G network in COSMOS SB1.

Prerequisites

In order to access the test bed, create a reservation and have it approved by the reservation service. Access to the resources is granted after the reservation is confirmed. Please follow the process shown on the COSMOS getting started page to get started.

Resources required

1 COSMOS server, 1 USRP (N310/X310), node equipped with 5G modems and/or node equipped with 5G phones in ​COSMOS SB1 domain

Tutorial Setup

Follow the steps below to gain access to the Weeks hall console and set up nodes with appropriate images.

  1. If you don't have one already, sign up for a ​COSMOS account
  2. Create a resource reservation on sandbox 1
  3. Login into sandbox 1 console (console.sb1.cosmos-lab.org) with two SSH sessions.
  4. Make sure all the resources in the domain are turned off: 
    omf tell -a offh -t system:topo:allres
    For this tutorial we will be using:

(a). As srsran gNB + 5G Core: a server srv1-lg1, USRP N310 sdr1-md1, and

(b). As srsran UE: srv1-in3 that has a ​Waveshare SIM8200-EA, or sdr2-md1 that has a Quectel RM510Q-GL attached over USB.

  1. Load srsran-cosmos.ndz on srv1-lg1 
    omf load -i srsRAN-cosmos.ndz -t srv1-lg1

    omf load -i 5G-UE-cosmos.ndz -t srv1-in3
  2. Turn all the required resources on and check the status 
    omf tell -a on -t srv1-lg1,sdr1-md1,srv1-in3

    omf stat -t system:topo:allres
  3. ssh to the nodes

Tutorial Execution

Check the USRP

  • Upon logging into srv1-lg1, run the shell script eth_config.sh that sets up appropriate IP addresses for the Ethernet interfaces and network buffer sizes on the server. 
    root@srv1-lg1:~# ./eth_config.sh
net.core.rmem_max = 62500000
net.core.wmem_max = 62500000
root@srv1-lg1:~# ifconfig -a
eno1np0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 9000
        inet 10.38.1.1  netmask 255.255.0.0  broadcast 10.38.255.255
        inet6 fe80::1e34:daff:fe42:c3c  prefixlen 64  scopeid 0x20<link>
        ether 1c:34:da:42:0c:3c  txqueuelen 1000  (Ethernet)
        RX packets 909  bytes 80670 (80.6 KB)
        RX errors 0  dropped 561  overruns 0  frame 0
        TX packets 193  bytes 16622 (16.6 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eno2np1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 9000
        inet 10.39.1.1  netmask 255.255.0.0  broadcast 10.39.255.255
        inet6 fe80::1e34:daff:fe42:c3d  prefixlen 64  scopeid 0x20<link>
        ether 1c:34:da:42:0c:3d  txqueuelen 1000  (Ethernet)
        RX packets 827  bytes 82338 (82.3 KB)
        RX errors 0  dropped 562  overruns 0  frame 0
        TX packets 291  bytes 23782 (23.7 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

or you can do it manually too: 

root@srv1-lg1:~# sudo sysctl -w net.core.rmem_max=25000000
root@srv1-lg1:~# sudo sysctl -w net.core.wmem_max=25000000
root@srv1-lg1:~# sudo ip link set dev eno1np0 mtu 9000
root@srv1-lg1:~# sudo ip link set dev eno2np1 mtu 9000
  • With the interfaces configured as above, the server should be able to access the SDRs in the domain. Test with 
    root@srv1-lg1:~# uhd_find_devices --args="addr=10.39.3.1"
[INFO] [UHD] linux; GNU C++ version 11.4.0; Boost_107400; UHD_4.4.0.HEAD-0-g3cf9529f
--------------------------------------------------
-- UHD Device 0
--------------------------------------------------
Device Address:
    serial: 3196937
    claimed: False
    fpga: XG
    mgmt_addr: 10.39.3.1
    name: ni-n3xx-3196937
    product: n310
    type: n3xx

Setup 5G Core

  • For this tutorial, we use ​Open5GS Core. All the components of the core are setup to run as systemd services. To reconfigure the services, please refer this ​guide.
  • Follow the AMF log 
    root@srv1-lg1:~# tail -f /var/log/open5gs/amf.log 

    Open5GS daemon v2.7.1

04/04 20:47:27.874: [app] INFO: Configuration: '/etc/open5gs/amf.yaml' (../lib/app/ogs-init.c:133)
04/04 20:47:27.874: [app] INFO: File Logging: '/var/log/open5gs/amf.log' (../lib/app/ogs-init.c:136)
04/04 20:47:27.877: [metrics] INFO: metrics_server() [http://127.0.0.5]:9090 (../lib/metrics/prometheus/context.c:299)
04/04 20:47:27.877: [sbi] INFO: NF Service [namf-comm] (../lib/sbi/context.c:1841)
04/04 20:47:27.877: [sbi] INFO: nghttp2_server() [http://127.0.0.5]:7777 (../lib/sbi/nghttp2-server.c:414)
04/04 20:47:27.908: [amf] INFO: ngap_server() [127.0.0.5]:38412 (../src/amf/ngap-sctp.c:61)
04/04 20:47:27.908: [sctp] INFO: AMF initialize...done (../src/amf/app.c:33)

Run srsran gNB

  • Run the gnb application in band n41 at 20MHz with 1T1R. 
    root@srv1-lg1:~# gnb -c ~/srsRAN_Project/configs/gnb_rf_n310_tdd_n41_20mhz.yml

--== srsRAN gNB (commit 40b17b429) ==--


The PRACH detector will not meet the performance requirements with the configuration {Format B4, ZCZ 0, SCS 30kHz, Rx ports 1}.
Lower PHY in quad executor mode.
N2: Connection to AMF on 127.0.0.5:38412 completed
Cell pci=1, bw=20 MHz, 1T1R, dl_arfcn=518670 (n41), dl_freq=2593.35 MHz, dl_ssb_arfcn=517710, ul_freq=2593.35 MHz

Available radio types: uhd and zmq.
[INFO] [UHD] linux; GNU C++ version 11.4.0; Boost_107400; UHD_4.4.0.HEAD-0-g3cf9529f
[INFO] [LOGGING] Fastpath logging disabled at runtime.
Making USRP object with args 'type=n3xx,addr=10.39.3.1,master_clock_rate=122.88e6,send_frame_size=8000,recv_frame_size=8000'
[INFO] [MPMD] Initializing 1 device(s) in parallel with args: mgmt_addr=10.39.3.1,type=n3xx,product=n310,serial=3196937,name=ni-n3xx-3196937,fpga=XG,claimed=False,addr=10.39.3.1,master_clock_rate=122.88e6,send_frame_size=8000,recv_frame_size=8000
[INFO] [MPM.PeriphManager] init() called with device args `fpga=XG,master_clock_rate=122.88e6,mgmt_addr=10.39.3.1,name=ni-n3xx-3196937,product=n310,recv_frame_size=8000,send_frame_size=8000,clock_source=internal,time_source=internal'.
[WARNING] [0/Radio#0] Attempting to set tick rate to 0. Skipping.
==== gNB started ===
Type <h> to view help
  • In the AMF log, you should see the gNB connected to the core 
    04/04 21:22:32.078: [amf] INFO: gNB-N2 accepted[127.0.0.1]:52741 in ng-path module (../src/amf/ngap-sctp.c:113)
04/04 21:22:32.079: [amf] INFO: gNB-N2 accepted[127.0.0.1] in master_sm module (../src/amf/amf-sm.c:757)
04/04 21:22:32.090: [amf] INFO: [Added] Number of gNBs is now 1 (../src/amf/context.c:1236)

UEs

  • As the base station runs, the modems can be seen registering at the AMF 
    04/04 21:31:17.641: [gmm] INFO: [imsi-310014000000011] Registration complete (../src/amf/gmm-sm.c:2313)
04/04 21:31:17.641: [amf] INFO: [imsi-310014000000011] Configuration update command (../src/amf/nas-path.c:591)


04/04 21:31:18.189: [gmm] INFO: [imsi-310014000000013] Registration complete (../src/amf/gmm-sm.c:2313)
04/04 21:31:18.189: [amf] INFO: [imsi-310014000000013] Configuration update command (../src/amf/nas-path.c:591)
  • Run connection manager scripts on srv1-in3 for the SIMCOM modem to establish PDU sessions 
    root@srv1-in3:~/SIM8200_code/Goonline# ./simcom-cm
[04-29_19:16:13:901] Build Version: 2020-07-14 10:20:15
[04-29_19:16:13:901] SIMCOM_CM START...
[04-29_19:16:13:901] ./simcom-cm profile[1] = (null)/(null)/(null)/0, pincode = (null)
[04-29_19:16:13:903] Find /sys/bus/usb/devices/4-4 idVendor=1e0e idProduct=9001
[04-29_19:16:13:903] Find /sys/bus/usb/devices/4-4:1.5/net/wwan0
[04-29_19:16:13:903] Find usbnet_adapter = wwan0
[04-29_19:16:13:903] Find /sys/bus/usb/devices/4-4:1.5/usbmisc/cdc-wdm0
[04-29_19:16:13:903] Find qmichannel = /dev/cdc-wdm0
[04-29_19:16:13:903] netcard driver = qmi_wwan
[04-29_19:16:13:911] cdc_wdm_fd = 7
[04-29_19:16:13:993] Get clientWDS = 15
[04-29_19:16:14:025] Get clientDMS = 1
[04-29_19:16:14:056] Get clientNAS = 2
[04-29_19:16:14:089] Get clientUIM = 1
[04-29_19:16:14:121] Get clientWDA = 1
[04-29_19:16:14:153] requestBaseBandVersion MPSS.HI.2.0.c3-00246-SDX55_CPEALL_PACK-1  1  [Oct 26 2020 16:00:00]
[04-29_19:16:14:217] requestGetSIMStatus SIMStatus: SIM_READY
[04-29_19:16:14:249] requestGetProfile[1] cosmos-5G///0
[04-29_19:16:14:281] requestRegistrationState2 MCC: 310, MNC: 14, PS: Attached, DataCap: NR5G
[04-29_19:16:14:313] requestQueryDataCall IPv4ConnectionStatus: DISCONNECTED
[04-29_19:16:14:377] requestRegistrationState2 MCC: 310, MNC: 14, PS: Attached, DataCap: NR5G
[04-29_19:16:14:857] requestSetupDataCall WdsConnectionIPv4Handle: 0x35305740
[04-29_19:16:14:920] requestQueryDataCall IPv4ConnectionStatus: CONNECTED
[04-29_19:16:14:952] ifconfig wwan0 up
[04-29_19:16:14:956] Fail to access /usr/share/udhcpc/default.script, errno: 2 (No such file or directory)
[04-29_19:16:14:956] busybox udhcpc -f -n -q -t 5 -s /usr/share/udhcpc/default.script -i wwan0
udhcpc: started, v1.30.1
udhcpc: sending discover
udhcpc: sending select for 10.45.0.6
udhcpc: lease of 10.45.0.6 obtained, lease time 7200
  • Configure the ip address of the corresponding interface ("wwan0" here) of srv1-in3: 
    root@srv1-in3:~# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
    link/ether 70:8b:cd:bc:7f:39 brd ff:ff:ff:ff:ff:ff
3: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 70:8b:cd:bc:7f:38 brd ff:ff:ff:ff:ff:ff
    altname enp0s25
    inet 10.37.1.5/16 metric 100 brd 10.37.255.255 scope global dynamic eno1
       valid_lft 5731sec preferred_lft 5731sec
    inet6 fe80::728b:cdff:febc:7f38/64 scope link
       valid_lft forever preferred_lft forever
4: wwan0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1400 qdisc fq_codel state UNKNOWN group default qlen 1000
    link/none
    inet6 fe80::de8b:9f9c:f41e:20b4/64 scope link stable-privacy
       valid_lft forever preferred_lft forever

root@srv1-in3:~# ifconfig wwan0 10.45.0.6/16

root@srv1-in3:~# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
    link/ether 70:8b:cd:bc:7f:39 brd ff:ff:ff:ff:ff:ff
3: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 70:8b:cd:bc:7f:38 brd ff:ff:ff:ff:ff:ff
    altname enp0s25
    inet 10.37.1.5/16 metric 100 brd 10.37.255.255 scope global dynamic eno1
       valid_lft 5724sec preferred_lft 5724sec
    inet6 fe80::728b:cdff:febc:7f38/64 scope link
       valid_lft forever preferred_lft forever
4: wwan0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1400 qdisc fq_codel state UNKNOWN group default qlen 1000
    link/none
    inet 10.45.0.6/16 scope global wwan0
       valid_lft forever preferred_lft forever
    inet6 fe80::de8b:9f9c:f41e:20b4/64 scope link stable-privacy
       valid_lft forever preferred_lft forever
root@srv1-in3:~#

Notice that "wwan0" interface got the desired IP address 10.45.0.6 now.

  • Or alternatively, run connection manager scripts on sdr2-md1 for the Quectel modem to establish PDU sessions 
    root@sdr2b-md1:~/quectel-CM_0319# ./quectel-CM -s cosmos-5G
[04-04_16:19:54:415] QConnectManager_Linux_V1.6.6_beta0319
[04-04_16:19:54:416] Find /sys/bus/usb/devices/2-1 idVendor=0x2c7c idProduct=0x800, bus=0x002, dev=0x004
[04-04_16:19:54:417] Auto find qmichannel = /dev/cdc-wdm1
[04-04_16:19:54:417] Auto find usbnet_adapter = wwan1
[04-04_16:19:54:417] netcard driver = cdc_mbim, driver version = 5.15.0-78-generic
[04-04_16:19:54:417] Modem works in MBIM mode
[04-04_16:19:54:421] cdc_wdm_fd = 7
[04-04_16:19:54:421] mbim_open_device()
[04-04_16:19:54:935] mbim_device_caps_query()
[04-04_16:19:54:967] DeviceId:     867034040030133
[04-04_16:19:54:967] FirmwareInfo: RM510QGLHAR11A03M4G
[04-04_16:19:54:967] HardwareInfo: RM510QGLHA_VB
[04-04_16:19:54:967] mbim_device_services_query()
[04-04_16:19:55:031] mbim_set_radio_state( 1 )
[04-04_16:19:55:063] HwRadioState: 1, SwRadioState: 1
[04-04_16:19:55:063] mbim_subscriber_status_query()
[04-04_16:19:55:095] SubscriberId: 310014000000011
[04-04_16:19:55:095] SimIccId:     8901310014000000114F
[04-04_16:19:55:095] SubscriberReadyState NotInitialized -> Initialized
[04-04_16:19:55:095] mbim_register_state_query()
[04-04_16:19:55:127] RegisterState Unknown -> Home
[04-04_16:19:55:127] mbim_packet_service_query()
[04-04_16:19:55:159] PacketServiceState Unknown -> Attached
[04-04_16:19:55:159] CurrentDataClass = Custom
[04-04_16:19:55:159] mbim_query_connect(sessionID=0)
[04-04_16:19:55:191] ActivationState Unknown -> Deactivated
[04-04_16:19:55:191] ip addr flush dev wwan1
[04-04_16:19:55:197] ip link set dev wwan1 down
[04-04_16:19:55:204] mbim_set_connect(onoff=1, sessionID=0)
[04-04_16:19:55:319] ActivationState Deactivated -> Activated
[04-04_16:19:55:319] mbim_ip_config(sessionID=0)
[04-04_16:19:55:351] < SessionId = 0
[04-04_16:19:55:351] < IPv4ConfigurationAvailable = 0xf
[04-04_16:19:55:351] < IPv6ConfigurationAvailable = 0x0
[04-04_16:19:55:351] < IPv4AddressCount = 0x1
[04-04_16:19:55:351] < IPv4AddressOffset = 0x3c
[04-04_16:19:55:351] < IPv6AddressCount = 0x0
[04-04_16:19:55:351] < IPv6AddressOffset = 0x0
[04-04_16:19:55:351] < IPv4 = 10.45.0.7/28
[04-04_16:19:55:351] < gw = 10.45.0.8
[04-04_16:19:55:351] < dns1 = 8.8.8.8
[04-04_16:19:55:351] < dns2 = 8.8.4.4
[04-04_16:19:55:351] < ipv4 mtu = 1400
[04-04_16:19:55:383] ip link set dev wwan1 up
[04-04_16:19:55:390] ip -4 address flush dev wwan1
[04-04_16:19:55:393] ip -4 address add 10.45.0.7/28 dev wwan1
[04-04_16:19:55:395] ip -4 route add default via 10.45.0.8 dev wwan1

Throughput test with srv1-in3/SIMCOM Modem

  • Make sure wwan interfaces on srv1-in3 have the right IP addresses obtained above 
    root@srv1-in3:~# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
    link/ether 70:8b:cd:bc:7f:39 brd ff:ff:ff:ff:ff:ff
3: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 70:8b:cd:bc:7f:38 brd ff:ff:ff:ff:ff:ff
    altname enp0s25
    inet 10.37.1.5/16 metric 100 brd 10.37.255.255 scope global dynamic eno1
       valid_lft 5724sec preferred_lft 5724sec
    inet6 fe80::728b:cdff:febc:7f38/64 scope link
       valid_lft forever preferred_lft forever
4: wwan0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1400 qdisc fq_codel state UNKNOWN group default qlen 1000
    link/none
    inet 10.45.0.6/16 scope global wwan0
       valid_lft forever preferred_lft forever
    inet6 fe80::de8b:9f9c:f41e:20b4/64 scope link stable-privacy
       valid_lft forever preferred_lft forever

"wwan0" interface with ip addrees of 10.45.0.6, so it's good.

  • iperf3 server 
    root@srv1-in3:~# iperf3 -s -B 10.45.0.6
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
  • iperf3 client on srv1-lg1 
    root@srv1-lg1:~# iperf3 -c 10.45.0.6 -i 1 -t 50
Connecting to host 10.45.0.6, port 5201
[  5] local 10.45.0.1 port 43306 connected to 10.45.0.6 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  1.78 MBytes  14.9 Mbits/sec   10   40.8 KBytes
[  5]   1.00-2.00   sec  1.60 MBytes  13.5 Mbits/sec    5   46.1 KBytes
[  5]   2.00-3.00   sec  2.04 MBytes  17.1 Mbits/sec    0   71.1 KBytes
[  5]   3.00-4.00   sec  2.10 MBytes  17.6 Mbits/sec    3   71.1 KBytes
[  5]   4.00-5.00   sec  1.97 MBytes  16.6 Mbits/sec    8   52.7 KBytes
[  5]   5.00-6.00   sec  1.97 MBytes  16.6 Mbits/sec    1   54.0 KBytes
[  5]   6.00-7.00   sec  2.16 MBytes  18.1 Mbits/sec    7   54.0 KBytes
[  5]   7.00-8.00   sec  1.85 MBytes  15.5 Mbits/sec    2   57.9 KBytes
[  5]   8.00-9.00   sec  1.91 MBytes  16.0 Mbits/sec    3   61.9 KBytes
[  5]   9.00-10.00  sec  1.67 MBytes  14.0 Mbits/sec    6   46.1 KBytes
[  5]  10.00-11.00  sec  1.85 MBytes  15.5 Mbits/sec    3   52.7 KBytes
[  5]  11.00-12.00  sec  2.16 MBytes  18.1 Mbits/sec    3   54.0 KBytes
[  5]  12.00-13.00  sec  1.97 MBytes  16.6 Mbits/sec    1   52.7 KBytes
[  5]  13.00-14.00  sec  2.16 MBytes  18.1 Mbits/sec    3   54.0 KBytes
[  5]  14.00-15.00  sec  1.97 MBytes  16.6 Mbits/sec    1   55.3 KBytes
[  5]  15.00-16.00  sec  2.04 MBytes  17.1 Mbits/sec    2   56.6 KBytes
[  5]  16.00-17.00  sec  1.79 MBytes  15.0 Mbits/sec    2   61.9 KBytes

… 

[  5]  45.00-46.00  sec  2.04 MBytes  17.1 Mbits/sec    1   51.3 KBytes
[  5]  46.00-47.00  sec  1.91 MBytes  16.0 Mbits/sec    2   52.7 KBytes
[  5]  47.00-48.00  sec  1.97 MBytes  16.6 Mbits/sec    3   55.3 KBytes
[  5]  48.00-49.00  sec  1.91 MBytes  16.0 Mbits/sec    3   55.3 KBytes
[  5]  49.00-50.00  sec  1.97 MBytes  16.6 Mbits/sec    1   60.6 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-50.00  sec  99.0 MBytes  16.6 Mbits/sec  149             sender
[  5]   0.00-50.06  sec  98.7 MBytes  16.5 Mbits/sec                  receiver

iperf Done.
root@srv1-lg1:~#

Meanwhile you can also check the gNb trace to see more relevant information like pci, rnti, cqi, ri rsrp etc. 

root@srv1-lg1:~# gnb -c ~/srsRAN_Project/configs/gnb_rf_n310_tdd_n41_20mhz.yml

--== srsRAN gNB (commit 40b17b429) ==--


The PRACH detector will not meet the performance requirements with the configuration {Format B4, ZCZ 0, SCS 30kHz, Rx ports 1}.
Lower PHY in quad executor mode.
N2: Connection to AMF on 127.0.0.5:38412 completed
Cell pci=1, bw=20 MHz, 1T1R, dl_arfcn=518670 (n41), dl_freq=2593.35 MHz, dl_ssb_arfcn=517710, ul_freq=2593.35 MHz

Available radio types: uhd and zmq.
[INFO] [UHD] linux; GNU C++ version 11.4.0; Boost_107400; UHD_4.4.0.HEAD-0-g3cf9529f
[INFO] [LOGGING] Fastpath logging disabled at runtime.
Making USRP object with args 'type=n3xx,addr=10.39.3.1,master_clock_rate=122.88e6,send_frame_size=8000,recv_frame_size=8000'
[INFO] [MPMD] Initializing 1 device(s) in parallel with args: mgmt_addr=10.39.3.1,type=n3xx,product=n310,serial=3196937,name=ni-n3xx-3196937,fpga=XG,claimed=False,addr=10.39.3.1,master_clock_rate=122.88e6,send_frame_size=8000,recv_frame_size=8000
[INFO] [MPM.PeriphManager] init() called with device args `fpga=XG,master_clock_rate=122.88e6,mgmt_addr=10.39.3.1,name=ni-n3xx-3196937,product=n310,recv_frame_size=8000,send_frame_size=8000,clock_source=internal,time_source=internal'.
[WARNING] [0/Radio#0] Attempting to set tick rate to 0. Skipping.
==== gNB started ===
Type <h> to view help
t

          |--------------------DL---------------------|-------------------------UL------------------------------
 pci rnti | cqi  ri  mcs  brate   ok  nok  (%)  dl_bs | pusch  rsrp  mcs  brate   ok  nok  (%)    bsr     ta  phr
   1 4607 |  15   1   28    18M  614    0   0%  12.5k |  23.5 -43.1   28   207k   53    0   0%      0    89n   30
   1 4607 |  15   1   28    16M  546    0   0%  12.5k |  23.6 -43.0   28   218k   50    0   0%      0    89n   30
   1 4607 |  15   1   28    17M  586    0   0%  4.09k |  23.4 -43.1   28   209k   52    1   1%     74    56n   38
   1 4607 |  15   1   28    15M  522    0   0%  1.28k |  23.5 -43.2   27   188k   61    0   0%      0   130n   30
   1 4607 |  15   1   28    16M  546    0   0%    21k |  23.7 -43.0   28   218k   50    0   0%      0   105n   30
   1 4607 |  15   1   28    19M  619    0   0%    21k |  23.7 -43.1   28   218k   50    0   0%      0    73n   30
   1 4607 |  15   1   28    18M  612    0   0%    21k |  23.5 -43.1   28   218k   50    0   0%      0    73n   30
   1 4607 |  15   1   28    18M  600    0   0%    21k |  23.7 -43.1   28   218k   50    0   0%      0    89n   30
   1 4607 |  15   1   28    19M  622    0   0%  9.72k |  23.7 -43.1   28   218k   50    0   0%      0    97n   30
   1 4607 |  15   1   28    16M  555    0   0%  4.09k |  23.6 -43.0   28   218k   50    0   0%      0   211n   30
   1 4607 |  15   1   28    18M  601    0   0%  32.2k |  23.8 -43.0   28   218k   50    0   0%      0   130n   30

          |--------------------DL---------------------|-------------------------UL------------------------------
 pci rnti | cqi  ri  mcs  brate   ok  nok  (%)  dl_bs | pusch  rsrp  mcs  brate   ok  nok  (%)    bsr     ta  phr
   1 4607 |  15   1   28    18M  603    0   0%  12.5k |  23.5 -43.0   28   218k   50    0   0%      0   113n   30
   1 4607 |  15   1   28    19M  618    0   0%    21k |  23.7 -43.0   28   218k   50    0   0%      0   268n   30
   1 4607 |  15   1   28    19M  635    0   0%  32.2k |  23.6 -43.0   28   218k   50    0   0%      0   252n   30
   1 4607 |  15   1   28    17M  577    0   0%  9.72k |  23.5 -43.0   28   218k   50    0   0%      0   170n   30
   1 4607 |  15   1   28    19M  633    0   0%  29.4k |  23.6 -43.0   28   218k   50    0   0%      0   187n   30
   1 4607 |  15   1   28    17M  563    0   0%  29.4k |  23.6 -43.0   28   218k   50    0   0%      0    32n   30
   1 4607 |  15   1   28    17M  551    0   0%  26.6k |  23.6 -43.0   28   218k   50    0   0%      0    65n   30
   1 4607 |  15   1   28    19M  618    0   0%  12.5k |  23.6 -43.0   28   218k   50    0   0%      0   -81n   30
   1 4607 |  15   1   28    19M  647    0   0%      0 |  23.7 -43.0   28   218k   50    0   0%     53    16n   30
   1 4607 |  15   1   28    15M  492    0   0%    21k |  23.5 -43.1   28   204k   54    0   0%      0   -16n   30
   1 4607 |  15   1   28    17M  581    0   0%  12.5k |  23.7 -43.0   28   218k   50    0   0%      0    89n   30

Throughput test with sdr2-md1/Quectel Modem

  • Make sure wwan interfaces on sdr2-md1 have the right IP addresses obtained above 
    wwan0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST>  mtu 1400
        inet 10.45.0.6  netmask 255.255.0.0  destination 10.45.0.6
        inet6 fe80::82e2:1b17:b212:b481  prefixlen 64  scopeid 0x20<link>
        unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  txqueuelen 1000  (UNSPEC)
        RX packets 244834  bytes 342703175 (342.7 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 28435  bytes 1521098 (1.5 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wwan1: flags=4291<UP,BROADCAST,RUNNING,NOARP,MULTICAST>  mtu 1500
        inet 10.45.0.7  netmask 255.255.255.252  broadcast 0.0.0.0
        inet6 fe80::c037:1fff:fe08:4f16  prefixlen 64  scopeid 0x20<link>
        ether c2:37:1f:08:4f:16  txqueuelen 1000  (Ethernet)
        RX packets 4  bytes 336 (336.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 107  bytes 8678 (8.6 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
  • iperf3 server 
    root@sdr2b-md1:~# iperf3 -s -B 10.45.0.6
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
  • iperf3 client on srv1-lg1 
    root@srv1-lg1:~# iperf3 -c 10.45.0.6 -i 1 -t 50
Connecting to host 10.45.0.6, port 5201
[  5] local 10.45.0.1 port 40004 connected to 10.45.0.6 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  1.30 MBytes  10.9 Mbits/sec    3   52.7 KBytes
.
.
.
[  5]  47.00-48.00  sec  1.42 MBytes  11.9 Mbits/sec    3   36.9 KBytes
[  5]  48.00-49.00  sec  1.23 MBytes  10.4 Mbits/sec    3   44.8 KBytes
[  5]  49.00-50.00  sec  1.48 MBytes  12.4 Mbits/sec    2   47.4 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-50.00  sec  83.3 MBytes  14.0 Mbits/sec  179             sender
[  5]   0.00-50.04  sec  83.0 MBytes  13.9 Mbits/sec                  receiver

Attachments (2)

Download all attachments as: .zip

Note: See TracWiki for help on using the wiki.