Patent ID: 9319933
Filing Date: 2016-04-19
CPC Classification: H04W

Claim Text:
1. An Intelligent Transportation Systems (ITS) device including: radio resources including a receiver adapted to receive a radio signal in at least two frequency bands; a channel detector arranged to analyse a signal received in a first frequency band to determine the presence of a transmission in that frequency band; and a controller configured to control assignment of radio resources, and in the event that the channel detector detects a signal in the first frequency band, to prevent transmission of a potentially interfering radio signal, wherein the controller is configured to cause the receiver to be tuned to a second frequency band and to decode a plurality of received channels transmitted on the second frequency band, according to a predetermined access scheme applied to transmissions on the second frequency band, and wherein in the event that the predetermined access scheme applied to transmission on the second frequency band assigns a first transmission of a first type to a first logical channel, and a second transmission of a second type to a second logical channel, the controller is configured to assign radio resources to the first frequency during at least some periods in which a transmission on the second logical channel of the second frequency band could be received.