Cellular Pluggable Interface Modules

The Cisco 4G LTE-Advanced Configuration chapter has been replaced by a new standalone guide called Cellular Pluggable Interface Module Configuration Guide. This guide contains updated information on all aspects of using the Cisco Cellular PIM.


Important
The Pluggable Module is not hot swappable. The router must be reloaded after a new module is installed.

Galileo Support on the LTE Pluggable Modules

GPS was the only GNSS constellation supported in earlier releases. The Cisco IOS XE 17.11.1a release introduces support for Galileo constellation.


Note
You can enable only one constellation at a time.

Configuration Commands

config# controller cellular <slot/port>
(config-controller)# <no> lte gps constellation <gps | galileo | gnss >

Example:

(config-controller)#lte gps constellation ?
  galileo  select Galileo as active constellation
  gps      select GPS as active constellation
  gnss      select multiple GNSS as active constellation

Note
The default setting is GPS mode.

The galileo and gnss options in this CLI configure Galileo and simultaneous GNSS modes, such as GPS and Galileo.

If you disable the GPS configuration, make sure that no constellation is configured. This maintains consistency with GPS mode configuration. For example: 






(config-controller)# no lte gps constellation gps

Show Commands

This example shows the current GNSS constellation as Galileo:






GPS Feature =  enabled
GPS Mode Configured =  standalone
Current Constellation Configured =  galileo
GPS Port Selected =  Dedicated GPS port
GPS Status =  GPS acquiring

Any changes made to the configuration will require the router to be rebooted.

More information is available in the Cellular Pluggable Interface Module Configuration Guide.

Monitoring Radio Signal Parameters and GPS Coordinates of Cellular Telemetry using Syslog Messages

Cellular Telemetry Overview

Cellular telemetry allows real-time monitoring and analysis of cellular connection performance through system logs. It helps with troubleshooting, optimizing network performance, and ensuring reliable connectivity. The cellular telemetry feature collects the Radio Frequency (RF) parameters and Global Positioning System (GPS) coordinates from the cellular network and displays them at a fixed interval of 60 seconds.

The cellular telemetry parameters that can be monitored include:

  • Received Signal Strength Indicator (RSSI)

  • Reference Signal Received Power (RSRP)

  • Reference Signal Received Quality (RSRQ)

  • Physical Cell Identity (PCI)

  • Signal to Noise Ratio (SNR)

  • Global Positioning System (GPS) coordinates

Limitation

The Cisco Catalyst WAN Manager does not support cellular telemetry.

Enable Cellular Telemetry

To enable the cellular telemetry feature in the contoller cellular interface 0/x/0 using the CLI.

Before you begin

  • Insert the cellular Pluggable Interface Module (PIM) into the IR device.

  • Enable GPS in the controller for GPS coordinates to be displayed in syslogs.

Procedure

Step 1

Enter the global configuration mode.

Example:

Router#configure terminal

Step 2

Enter the cellular configuration mode.

Example:

Step 3

Enable the RF parameters and GPS coordinates.

Example:

Router (config-controller)#lte modem serviceability signal-parameters
Router (config-controller)#end

Disable Cellular Telemetry

To disable the cellular telemetry feature, use the no form of the lte modem serviceability signal-parameters command, as shown in the example: 

Router#Configure terminal





Router(config-controller)#no lte modem serviceability signal-parameters
Router(config-controller)#end

Monitor Cellular Telemetry

You can monitor RF parameters and GPS coordinates for cellular interfaces by using the show logging command or check the console output.

The following example displays RF parameters and GPS coordinates at every one minute interval:

Router#show logging
*Sep  3 17:08:42.081: %CELLWAN-2-MODEM_SIGNAL_PARAM: : 4G: RSSI = -54 dBm RSRP = -76 dBm RSRQ = -9 dB PCI = 1 SNR = 27.4 dB
Latitude =  12 Deg 56 Min 8.9260 Sec North
Longitude =  77 Deg 41 Min 44.1641 Sec East

*Sep  3 17:09:42.080: %CELLWAN-2-MODEM_SIGNAL_PARAM: : 4G: RSSI = -54 dBm RSRP = -76 dBm RSRQ = -9 dB PCI = 1 SNR = 29.0 dB
Latitude =  12 Deg 56 Min 8.8989 Sec North
Longitude =  77 Deg 41 Min 44.1570 Sec East

The following example displays only RF parameters and not GPS coordinates since GPS is not enabled in the controller:

Router#show logging
*Sep  3 17:08:42.081: %CELLWAN-2-MODEM_SIGNAL_PARAM: : 4G: RSSI = -54 dBm RSRP = -76 dBm RSRQ = -9 dB PCI = 1 SNR = 27.4 dB

*Sep  3 17:09:42.080: %CELLWAN-2-MODEM_SIGNAL_PARAM: : 4G: RSSI = -54 dBm RSRP = -76 dBm RSRQ = -9 dB PCI = 1 SNR = 29.0 dB