Re: 4G LTE MIMO with EHWIC-4G-LTE

Y. 'FoAmY' Vandenbossche · ‎07-13-2021

Hey guys,

I'm looking at replacing the terrible DSL (1.5Mb/s) with 4G at my parent's place in rural France, I've got my old 1941 ISR with a 4G-LTE ehwic... I've tested the setup here in Belgium with the SIM from my cell and my config works just fine, I just have one question... I've read in the datasheet that 2x2 MIMO is supported by this card, however information / knowledge is a bit scarce online.

It looks like the antenna marked '0' is being used, but the one marked '1' doesn't appear to effect anything whether plugged in or not, this leads me to believe MIMO is not working. I'm assuming this requires some additional configuration but I can't find any guides.

If anyone can help that would be much appreciated!

-Yanni

Arshad Safrulla · ‎07-14-2021

Can you post an output for show cellular 0/0/0 all, check the Current RSSI(RSCP) =-XX

Assuming you have very good Meanwhile you can also configure "cell 0/0/0 lte technology UMTS or lte" to make sure that the higher speed protocols are always preferred. This will make sure that gsm is always ignored.

___________________________________________
TAC recommended codes for AireOS WLC's
Best Practices for AireOS WLC's
TAC recommended codes for 9800 WLC's
Best Practices for 9800 WLC's
Cisco Wireless compatibility matrix
___________________________________________
Arshad Safrulla

Y. 'FoAmY' Vandenbossche · ‎07-15-2021

Hi Arshadsaf, see below...

HH#sh cellular 0/0/0 all

Hardware Information
====================
Modem Firmware Version = SWI9X15C_05.05.26.02
Modem Firmware built = 2014/08/07 21:13:26
Hardware Version = 1.0
Device Model ID: MC7304
Package Identifier ID: 1102029_9903299_MC7304_05.05.26.02_00_Cisco_005.008_000
International Mobile Subscriber Identity (IMSI) = ###############
International Mobile Equipment Identity (IMEI) = ###############
Integrated Circuit Card ID (ICCID) = ###################
Mobile Subscriber Integrated Services
Digital Network-Number (MSISDN) = 32465######
Modem Status = Online
Current Modem Temperature = 38 deg C
PRI SKU ID = 1102029, PRI version = 005.009_001, Carrier = Telstra
OEM PRI version = 05.08

Profile Information
====================
Profile password Encryption level: 7


Profile 1 = ACTIVE* **
--------
PDP Type = IPv4
PDP address = 100.91.9.77
Access Point Name (APN) = telenetwap.be
Authentication = None
Primary DNS address = 195.130.130.141
Secondary DNS address = 195.130.131.141

* - Default profile
** - LTE attach profile


Data Connection Information
===========================
Profile 1, Packet Session Status = ACTIVE
Cellular0/0/0:
Data Transmitted = 37273 bytes, Received = 67505 bytes
IP address = 100.91.9.77
Primary DNS address = 195.130.130.141
Secondary DNS address = 195.130.131.141
Profile 2, Packet Session Status = INACTIVE
Profile 3, Packet Session Status = INACTIVE
Profile 4, Packet Session Status = INACTIVE
Profile 5, Packet Session Status = INACTIVE
Profile 6, Packet Session Status = INACTIVE
Profile 7, Packet Session Status = INACTIVE
Profile 8, Packet Session Status = INACTIVE
Profile 9, Packet Session Status = INACTIVE
Profile 10, Packet Session Status = INACTIVE
Profile 11, Packet Session Status = INACTIVE
Profile 12, Packet Session Status = INACTIVE
Profile 13, Packet Session Status = INACTIVE
Profile 14, Packet Session Status = INACTIVE
Profile 15, Packet Session Status = INACTIVE
Profile 16, Packet Session Status = INACTIVE

Network Information
===================
Current System Time = Thu Jul 15 11:41:7 2021
Current Service Status = Normal
Current Service = Packet switched
Current Roaming Status = Home
Network Selection Mode = Automatic
Network = ########
Mobile Country Code (MCC) = 206
Mobile Network Code (MNC) = ##
Packet switch domain(PS) state = Attached
Registration state(EMM) = Registered
EMM Sub State = Normal Service
Tracking Area Code (TAC) = ###
Cell ID = #####
Negotiated network MTU is 1358

Radio Information
=================
Radio power mode = online
LTE Rx Channel Number = 1800
LTE Tx Channel Number = 19800
LTE Band = 3
LTE Bandwidth = 20 MHz
Current RSSI = -63 dBm
Current RSRP = -91 dBm
Current RSRQ = -8 dB
Current SNR = 7.0 dB
Physical Cell Id = 0x82
Number of nearby cells = 2
Idx PCI (Physical Cell Id)
--------------------------------
1 130
2 145
Radio Access Technology(RAT) Preference = AUTO
Radio Access Technology(RAT) Selected = LTE

Modem Security Information
==========================
Card Holder Verification (CHV1) = Disabled
SIM Status = OK
SIM User Operation Required = None
Number of CHV1 Retries remaining = 3

GPS Information
==========================

GPS Info
-------------
GPS Feature: enabled
GPS Port Selected: Dedicated GPS port
GPS Status: GPS coordinates acquired
GPS auto tracking status: active
GPS auto tracking config: enabled
GPS Mode Configured: standalone
Latitude: ## Deg ## Min ##.#### Sec North
Longitude: # Deg ## Min ##.#### Sec East

Fix type index: 0, Height: 10 m
HDOP: 1.0, GPS Mode Used: standalone


SMS Information
===============
Incoming Message Information
----------------------------
SMS stored in modem = 0
SMS archived since booting up = 0
Total SMS deleted since booting up = 0
Storage records allocated = 25
Storage records used = 0
Number of callbacks triggered by SMS = 0
Number of successful archive since booting up = 0
Number of failed archive since booting up = 0

Outgoing Message Information
----------------------------
Total SMS sent successfully = 0
Total SMS send failure = 0
Number of outgoing SMS pending = 0
Number of successful archive since booting up = 0
Number of failed archive since booting up = 0
Last Outgoing SMS Status = SUCCESS
Copy-to-SIM Status = 0x0
Send-to-Network Status = 0x0
Report-Outgoing-Message-Number:
Reference Number = 0
Result Code = 0x0
Diag Code = 0x0 0x0 0x0 0x0 0x0

SMS Archive URL =

Error Information
=================

This command is not supported on this platform.


Modem Crashdump Information
===========================
WIC type is C00
Cellular0/0/0 is MC73xx based
Modem crashdump logging: off

Arshad Safrulla · ‎07-15-2021

As per the Data sheet MIMO is supported, but I believe since MIMO is a component of 4G technology itself doesn't require any additional configuration. That being said what you are looking at in the configuration is the interfaces attached to each Cellular EHWIC card, some cards come with dual sim card. Each sim card maps to single cellular interface. It doesnt relate anyway to MIMO

___________________________________________
TAC recommended codes for AireOS WLC's
Best Practices for AireOS WLC's
TAC recommended codes for 9800 WLC's
Best Practices for 9800 WLC's
Cisco Wireless compatibility matrix
___________________________________________
Arshad Safrulla

Y. 'FoAmY' Vandenbossche · ‎07-15-2021

Thanks for your response...

This EHWIC only has a single SIM card slot, but has 3 cell interfaces.

Do you happen to know why?

Cellular0/0/0	100.97.222.162	YES	IPCP	up	up
Cellular0/0/1	unassigned	YES	unset	down	down
CellNMEA0/0/5	unassigned	YES	unset	down	down

Thanks