LTE CQI Table Changes

The latest release for SignalPro available on May 6^th, 2021, will contain several new enhancements and features (please refer to release notes for an extensive list).

One of the new enhancements is for the CQI tables within the 5G and LTE module.

This will affect any user with the LTE module, please read ahead to understand the changes and how to revert if needed. As the new CQI will affect all studies

CQI Tables

Signal Pro now supports up to 64 entries in the LTE CQI tables. In addition, the table includes the modulation efficiency metric* and MCS name which can now be edited as per user requirements.

*Note: Modulation efficiency is expressed in bps/Hz and not Mbps as it is in the WiMAX modulation tables.

Modulation region may be assigned QPSK, 16QAM, 64 QAM, and 256 QAM.

In the case where the user needs to revert to the CQI table and setting from the legacy table, the following steps should be taken.

The following table(s) need to be entered depending on the table selected in previous versions.

To edit the CQI table, simply navigate to Network Design/Analysis->LTE Networks->System details/Service area:

Open

Then, select the CQI Parameters Button

Open

Enter the values from the following tables.

64 QAM Uplink and Downlink Table- Used for uplink when “Use 64 QAM checkbox” is checked and used for downlink when “Use 256 QAM” is unchecked.

256 QAM Downlink Table-Used for downlink when “Use 256 QAM” is checked.

QPSK and 16 QAM Uplink Table- Used for uplink when “Use 64 QAM checkbox” is unchecked.

Note; The column for "Modulation Efficiency (bps/Hz)" should only have two significant digits listed.

If the data is presented like below, then you can copy/paste the values directly into the dialog.

o    The user must first select all rows,

o    Then click the 'Delete' button the keyboard.

o    Then hit CTRL-V to paste the data in.

Here is an example of being able to copy/paste the CQI table data:

Also Note; These are EDX Wireless defaults. If user had made changes, they will need to adjust the table and use appropriate values moving forward.

If you have any issues or questions, please contact EDX Support.