User Guide for FibeAir® IP-20 All-Outdoor Products, CeraOS 10.5
Page 499 of 825
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2 Enable the group by entering the following command in root view:
root
> radio mimo set-admin group <1-4> admin enable
3 For 2+2 Space Diversity configurations, you must set the role of the group
to
Master
or
Slave
. This determines the role of the IP-20 unit in the overall
Space Diversity configuration.
To set the role of a MIMO or Space Diversity group, enter the following
command in root view:
root
> radio mimo set-role group <1-4> mimo-role <slave|master>
14.8.6
Viewing MMI Levels (CLI)
You can view MMI levels for the individual radio carriers in a MIMO group.
Note that the MMI value can also be calculated manually. To calculate it manually,
you must measure the following RSL levels per receiver:
1 Mute all remote transmitters except the transmitter for the link you want to
measure, and measure the local RSL level (RSL_Wanted).
2 Mute all remote transmitters except the same polarization interferer and
measure the local RSL2 (RSL_Int).
3 The MMI is equal to RSL_Wanted
–
RSL_Int.
To show the status of a MIMO group, as well as the MMI and XPI levels for the
individual radio carriers, enter the following command:
root
> radio mimo show status group 1
The following is a sample output from this command:
root> radio mimo show status group 1
MIMO group type: mimo-4x4.
MIMO group 1st member: slot 2 port 1.
MIMO group 2nd member: slot 2 port 2.
MIMO group admin status: disable.
MIMO state: MIMO-Disabled.
MIMO advanced state: disabled.
MIMO RFU role: slave.
MIMO 1st carrier MMI: -0.0
MIMO 2nd carrier MMI: -0.0
MIMO 1st carrier XPI: 99.0
MIMO 2nd carrier XPI: 99.0
Table 96: MMI and XPI Levels CLI Parameters
Parameter
Input Type
MIMO group type
The MIMO or Space Diversity configuration:
•
mimo-2x2
–
2x2 MIMO.
•
mimo-4x4
–
4x4 MIMO.
•
1-plus-0-sd
–
1+0 BBS Space Diversity.
•
2-plus-0-sd
–
2+0 XPIC with BBS Space Diversity.
MIMO group 1st member
The first radio carrier in the group.
MIMO group 2nd member
The second radio carrier in the group.