Cellular Pluggable Interface Modules

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The Cisco 4G LTE-Advanced Configuration chapter has been replaced by a new standalone guide called Cellular Pluggable Interface Module Configuration Guide .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

The Cisco IOS XE 17.11.1a release introduces support for the Galileo constellation on 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 command examples:


                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.

Example:


                config# 
                controller Cellular 0/3/0
                
                
                
                
                (config-controller)# 
                no lte gps constellation gps

Show commands example:


Note

The example shows the current GNSS constellation as Galileo.

Example:


                config# 
                show cellular 0/3/0 gps detail
                
                
                
                
                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 .

Radio signal parameters and GPS coordinates of cellular telemetry monitoring using syslog messages

Cellular telemetry is a feature that enables real-time monitoring and analysis of cellular connection performance by collecting Radio Frequency (RF) parameters and Global Positioning System (GPS) coordinates from the cellular network at a fixed interval of 60 seconds.

  • Monitors key radio signal parameters such as RSSI, RSRP, RSRQ, PCI, and SNR.

  • Collects GPS coordinates for location tracking.

  • Facilitates troubleshooting, network optimization, and ensures reliable connectivity.

Cellular Telemetry Reference Information

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

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:

Router (config)#controller cellular 0/3/0

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 cellular 0/3/0



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: Cellular0/3/0: 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: Cellular0/3/0: 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: Cellular0/3/0: 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: Cellular0/3/0: 4G: RSSI = -54 dBm RSRP = -76 dBm RSRQ = -9 dB PCI = 1 SNR = 29.0 dB