Patent ID: 8300609

Claim:
A communication device arranged to communicate data with another device at a given time instant according to either a first communication protocol or a second communication protocol, the communication device being constrained according to the first communication protocol to transmit data during a time slot allocated to that transmission, said time slot having a predetermined duration and commencing at a predetermined time instant, the communication device comprising a control unit arranged to: determine a transmission window associated with the allocated time slot, the transmission window being different from the allocated time slot and representing a time within which the communication device can transmit the data while still meeting the constraints of the first communication protocol to transmit that data in the allocated time slot; select a time instant in the transmission window for commencing transmission of the data according to the first communication protocol so as to accommodate a data communication according to the second communication protocol that is to be made by the communication device during the allocated time slot; and wherein the communication device is arranged to transmit data representative of one or more parameters associated with a clock of the communication device to another device.