I got lte on my nexus 4 with the exact same settings from koodo. Not sure why the oneplus won't pick it up..
Mobile services provided by Koodo use Telus Mobility's CDMA, HSPA+ and LTE networks. CDMA devices, however, have been discontinued by Koodo outside of Northern Ontario and Manitoba. Koodo Mobile's CDMA and HSPA networks use the 800 MHz and 1900 MHz frequencies while their LTE network uses 1700/2100 MHz (AWS).