NETWORK NODE, WIRELESS DEVICE,RESPECTIVE METHOD PERFORMED THEREBY FOR SUPPORTING WIRELESS DEVICE OPERATION IN HETEROGENEOUS FREQUENCY BANDS

摘要

A network node, a wireless device and a respective method performed by the same in a wireless communication network employing heterogeneous frequency band types, the network node being operative to serve wireless devices in a non- licensed frequency band and in a licensed frequency band, the network node serving a wireless device in a non-licensed frequency band are provided. The method in the network node comprises configuring (110) a fallback carrier in the licensed frequency band to the wireless device, wherein if the network node determines that the wireless device should switch to the licensed frequency band, the method comprises handing over (130) the wireless device to the fallback carrier.