The premise is that one can jam the entire spectrum of wireless communication channels, rendering most wireless communication devices useless. By doing this, the battle droids will loose their control signal and be rendered inoperable. This tactic was first shown in Outbound Flight; the droids in both Outbound Flight and The Phantom Menace we rendered inoperable once the control ship was jammed/destroyed.
The one downside to this strategy is both sides cannot use wireless communiction devices. Thrawn mentioned that Chiss have trained to coordinate using non-wireless communications. The droid control ship also attempts to use laser line-of-sight communications to connect to the droids; it is implied that this method is slow and can only reach a limited number of droids.
Since a majority of Trade Federation Forces are Battle Droids, it seems that this strategy would render the Trade Federation mostly defenseless. While one would loose their communication abilities, it seems like they would have an easier time fighting the disabled droids and the less than capable Trade Federation non-droid forces.
Whether or not this strategy could work seems to be irrelevant as Thrawn successfully uses it during Outbound Flight (Legends).
There are a few caveats to this theory:
a.) The premise of this was based on a strategy used by Thrawn in the non-canon book Outbound Flight. It is very possible that this strategy is no longer applicable.
b.) This also assumes that the Trade Federation were using Battle Droids that were similar to those used during the Naboo Crisis, ones that utilized a central control unit.
C.) This Strategy could not be used during the Clone Wars
Why is full-spectrum jamming not used by those fighting against the Trade Federation?