How to channel plan a 60 GHz PMP network

The channel planning for 60 GHz networks involves not just the frequency channel, but also the Golay code and Polarity.

LINKPlanner has a new feature to help visualize the layout of each of the parameters. It is located under Project Configuration – Channel Plans, the same location used for channel planning other PMP products.


There are now two tabs in the Channel Plans window, click on the CnWave Channel Planning tab to access the 60 GHz planning options.

There is a display control on the left hand side, where you can untick options to hide them in the display. Only selecting limited combinations enables just the sectors matching that configuration to be displayed making it easier to see any overlap issues.

If you build a project using the default settings all the options will be set to Auto and the channel plan will only have the one option in the legend in the top right hand corner.

To configure the channel plan, choose Set Channel, Set Golay Code or Set Polarity and then one of the options below the menu. This will then activate that choice and it will be allocated to each sector selected.

Setting Polarity

In this example we will start by configuring the Polarity. Ideally we want both sectors on the same DN to be using the same Polarity in order not to reduce the capacity. Where we have a mesh connection between DNs the two connected DNs have to be on opposite polarities, so this gives a set of rules to start the configuration.

Select Set Polarity and choose the Even option. The active choice is shown to the right of the icons in the menu bar.


The cursor will change to show a target icon image010 . Select each sector that you want to have Even Polarity. As the sectors are all currently on Auto, as soon as you set one sector on a DN to Even it will automatically change the adjacent sector on the DN as well. When you change a sector to Even the sector will have a shaded color from the center of the sector fading as it goes out to the edge of the sector. Repeat the same exercise with the Polarity set to Odd. Sectors with Odd polarity will be shaded from the outside of the sector fading towards to the center of the sector. The legend in the top right hand corner changes to include the new configurations.

Setting Golay Codes

When adding the Golay codes the two sectors on the same DN should use a different Golay code, but sectors with a common PTP link should use the same Golay code. The Golay codes are displayed using different color schemes, as shown below.

Setting Frequency Channels

If using different frequency channels, for example to help with limiting interference between subscribers on the DN sector boundary, then sectors with a common PTP link must be on the same channel. These also use colors to differentiate and the legend expands to show each of the combinations used.

Choosing Colors

To choose your own color for a configuration click on the color symbol in the legend, choose the color you want to use and click OK.


Offline Map View

The Channel Plan is also displayed in the main Offline map where it can be seen in conjunction with the subscriber links. If you do not want to see the channel plan colours in the map view, toggle the Channel Plan colours icon in the menu bar (note that this also applies to PMP channel plans as well as 60 GHz cnWave).