[srslte-users] enb paging fail with prb=25 with zmq
J Giovatto
jgiovatto at adjacentlink.com
Thu May 27 14:45:11 UTC 2021
Hi Folks,
FYI:
When testing with zmq and n_prb=25 I see the enb fail to page the ue
after the inactivity timeout (60000ms) when sending DL traffic.
"Could not allocate Paging with payload length=7, cause=No space
available in PUCCH or PDCCH"
Then the logs stop until the UE sends UL traffic and becomes active again.
This is not the case with n_prb=50, enb log and conf attached.
Not sure if this is known or an issue, I can post if the later.
Joe
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# srsENB configuration file
# eNB configuration
#
# enb_id: 20-bit eNB identifier.
# 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
# gtp_advertise_addr: IP address of eNB to advertise for DL GTP-U Traffic
# 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 = 0x19a
name = srsenb01
mcc = 001
mnc = 01
mme_addr = 10.99.1.101
gtp_bind_addr = 10.99.1.20
s1c_bind_addr = 10.99.1.20
n_prb = 25
tm = 1
nof_ports = 1
# 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 (only valid if a single cell is configured in rr.conf)
# 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", "bladeRF", "soapy" or "zmq".
# 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.
[rf]
tx_gain = 80
rx_gain = 40
#device_name = auto
# For best performance in 2x2 MIMO and >= 15 MHz use the following device_args settings:
# USRP B210: num_recv_frames=64,num_send_frames=64
# And for 75 PRBs, also append ",master_clock_rate=15.36e6" to the device args
# For best performance when BW<5 MHz (25 PRB), use the following device_args settings:
# USRP B210: send_frame_size=512,recv_frame_size=512
device_name = zmq
device_args = tx_port0=tcp://*:2000,rx_port0=tcp://10.99.1.1:2001,id=enb
time_adv_nsamples = 0
# Example for ZMQ-based operation with TCP transport for I/Q samples
#device_name = zmq
#device_args = fail_on_disconnect=true,tx_port=tcp://*:2000,rx_port=tcp://localhost:2001,id=enb,base_srate=23.04e6
# Packet capture configuration
#
# MAC-layer packets are captured to file a the compact format decoded
# by the Wireshark. For decoding, use the UDP dissector and the UDP
# heuristic dissection. Edit the preferences (Edit > Preferences >
# Protocols > DLT_USER) for DLT_USER to add an entry for DLT=149 with
# Protocol=udp. Further, enable the heuristic dissection in UDP under:
# Analyze > Enabled Protocols > MAC-LTE > mac_lte_udp and MAC-NR > mac_nr_udp
# For more information see: https://wiki.wireshark.org/MAC-LTE
# Configuring this Wireshark preferences is needed for decoding the MAC PCAP
# files as well as for the live network capture option.
#
# Please note that this setting will by default only capture MAC
# frames on dedicated channels, and not SIB. You have to build with
# WRITE_SIB_PCAP enabled in srsenb/src/stack/mac/mac.cc if you want
# SIB to be part of the MAC pcap file.
#
# S1AP Packets are captured to file in the compact format decoded by
# the Wireshark s1ap dissector and with DLT 150.
# To use the dissector, edit the preferences for DLT_USER to
# add an entry with DLT=150, Payload Protocol=s1ap.
#
# mac_enable: Enable MAC layer packet captures (true/false)
# mac_filename: File path to use for packet captures
# s1ap_enable: Enable or disable the PCAP.
# s1ap_filename: File name where to save the PCAP.
#
# mac_net_enable: Enable MAC layer packet captures sent over the network (true/false default: false)
# bind_ip: Bind IP address for MAC network trace (default: "0.0.0.0")
# bind_port: Bind port for MAC network trace (default: 5687)
# client_ip: Client IP address for MAC network trace (default "127.0.0.1")
# client_port Client IP address for MAC network trace (default: 5847)
[pcap]
enable = false
filename = enb.pcap
s1ap_enable = false
s1ap_filename = enb_s1ap.pcap
mac_net_enable = false
bind_ip = 0.0.0.0
bind_port = 5687
client_ip = 127.0.0.1
client_port = 5847
# Log configuration
#
# Log levels can be set for individual layers. "all_level" sets log
# level for all layers unless otherwise configured.
# Format: e.g. phy_level = info
#
# In the same way, packet hex dumps can be limited for each level.
# "all_hex_limit" sets the hex limit for all layers unless otherwise
# configured.
# Format: e.g. phy_hex_limit = 32
#
# Logging layers: rf, phy, phy_lib, mac, rlc, pdcp, rrc, gtpu, s1ap, stack, all
# Logging levels: debug, info, warning, error, none
#
# filename: File path to use for log output. Can be set to stdout
# to print logs to standard output
# file_max_size: Maximum file size (in kilobytes). When passed, multiple files are created.
# If set to negative, a single log file will be created.
[log]
all_level = info
mac_level = info
phy_lib_level = warning
all_hex_limit = 64
filename = enb.log
file_max_size = -1
[gui]
enable = false
# Scheduler configuration options
#
# sched_policy: User MAC scheduling policy (E.g. time_rr, time_pf)
# max_aggr_level: Optional maximum aggregation level index (l=log2(L) can be 0, 1, 2 or 3)
# pdsch_mcs: Optional fixed PDSCH MCS (ignores reported CQIs if specified)
# pdsch_max_mcs: Optional PDSCH MCS limit
# pusch_mcs: Optional fixed PUSCH MCS (ignores reported CQIs if specified)
# pusch_max_mcs: Optional PUSCH MCS limit
# min_nof_ctrl_symbols: Minimum number of control symbols
# max_nof_ctrl_symbols: Maximum number of control symbols
#
[scheduler]
#policy = time_pf
#policy_args = 2
#max_aggr_level = -1
#pdsch_mcs = -1
#pdsch_max_mcs = -1
#pusch_mcs = -1
#pusch_max_mcs = 16
#min_nof_ctrl_symbols = 1
max_nof_ctrl_symbols = 3
#pucch_multiplex_enable = false
# eMBMS configuration options
#
# enable: Enable MBMS transmission in the eNB
# m1u_multiaddr: Multicast addres the M1-U socket will register to
# m1u_if_addr: Address of the inteferface the M1-U interface will listen for multicast packets.
# mcs: Modulation and Coding scheme for MBMS traffic.
#
[embms]
enable = false
m1u_multiaddr = 239.255.0.1
m1u_if_addr = 10.99.1.20
#mcs = 20
# Channel emulator options:
# enable: Enable/Disable internal Downlink/Uplink channel emulator
#
# -- AWGN Generator
# awgn.enable: Enable/disable AWGN generator
# awgn.snr: Target SNR in dB
#
# -- Fading emulator
# fading.enable: Enable/disable fading simulator
# fading.model: Fading model + maximum doppler (E.g. none, epa5, eva70, etu300, etc)
#
# -- Delay Emulator delay(t) = delay_min + (delay_max - delay_min) * (1 + sin(2pi*t/period)) / 2
# Maximum speed [m/s]: (delay_max - delay_min) * pi * 300 / period
# delay.enable: Enable/disable delay simulator
# delay.period_s: Delay period in seconds.
# delay.init_time_s: Delay initial time in seconds.
# delay.maximum_us: Maximum delay in microseconds
# delay.minumum_us: Minimum delay in microseconds
#
# -- Radio-Link Failure (RLF) Emulator
# rlf.enable: Enable/disable RLF simulator
# rlf.t_on_ms: Time for On state of the channel (ms)
# rlf.t_off_ms: Time for Off state of the channel (ms)
#
# -- High Speed Train Doppler model simulator
# hst.enable: Enable/Disable HST simulator
# hst.period_s: HST simulation period in seconds
# hst.fd_hz: Doppler frequency in Hz
# hst.init_time_s: Initial time in seconds
[channel.dl]
#enable = false
[channel.dl.awgn]
#enable = false
#snr = 30
[channel.dl.fading]
#enable = false
#model = none
[channel.dl.delay]
#enable = false
#period_s = 3600
#init_time_s = 0
#maximum_us = 100
#minimum_us = 10
[channel.dl.rlf]
#enable = false
#t_on_ms = 10000
#t_off_ms = 2000
[channel.dl.hst]
#enable = false
#period_s = 7.2
#fd_hz = 750.0
#init_time_s = 0.0
[channel.ul]
#enable = false
[channel.ul.awgn]
#enable = false
#n0 = -30
[channel.ul.fading]
#enable = false
#model = none
[channel.ul.delay]
#enable = false
#period_s = 3600
#init_time_s = 0
#maximum_us = 100
#minimum_us = 10
[channel.ul.rlf]
#enable = false
#t_on_ms = 10000
#t_off_ms = 2000
[channel.ul.hst]
#enable = false
#period_s = 7.2
#fd_hz = -750.0
#init_time_s = 0.0
# Expert configuration options
#
# pusch_max_its: Maximum number of turbo decoder iterations (Default 4)
# pusch_8bit_decoder: Use 8-bit for LLR representation and turbo decoder trellis computation (Experimental)
# nof_phy_threads: Selects the number of PHY threads (maximum 4, minimum 1, default 3)
# metrics_period_secs: Sets the period at which metrics are requested from the eNB.
# metrics_csv_enable: Write eNB metrics to CSV file.
# metrics_csv_filename: File path to use for CSV metrics.
# tracing_enable: Write source code tracing information to a file.
# tracing_filename: File path to use for tracing information.
# tracing_buffcapacity: Maximum capacity in bytes the tracing framework can store.
# pregenerate_signals: Pregenerate uplink signals after attach. Improves CPU performance.
# tx_amplitude: Transmit amplitude factor (set 0-1 to reduce PAPR)
# rrc_inactivity_timer Inactivity timeout used to remove UE context from RRC (in milliseconds).
# max_prach_offset_us: Maximum allowed RACH offset (in us)
# eea_pref_list: Ordered preference list for the selection of encryption algorithm (EEA) (default: EEA0, EEA2, EEA1).
# eia_pref_list: Ordered preference list for the selection of integrity algorithm (EIA) (default: EIA2, EIA1, EIA0).
#
[expert]
#pusch_max_its = 8 # These are half iterations
#pusch_8bit_decoder = false
nof_phy_threads = 1
#metrics_period_secs = 1
#metrics_csv_enable = false
#metrics_csv_filename = enb_metrics.csv
#report_json_enable = true
#report_json_filename = /tmp/enb_report.json
#alarms_log_enable = true
#alarms_filename = /tmp/enb_alarms.log
#tracing_enable = true
#tracing_filename = /tmp/enb_tracing.log
#tracing_buffcapacity = 1000000
#pregenerate_signals = false
#tx_amplitude = 0.6
rrc_inactivity_timer = 60000
#max_nof_kos = 100
#max_prach_offset_us = 30
#eea_pref_list = EEA0, EEA2, EEA1
#eia_pref_list = EIA2, EIA1, EIA0
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