A user equipment (UE) tunes a transceiver of the UE to a first frequency associated with a first channel, transmits a first short packet to a second UE on the first channel and determines whether a first indication was received from the second UE in response to the first short packet. The first indication indicates that the first channel satisfies one or more predetermined criteria. The UE transmits then the primary data to the second UE on the first channel in response to the first indication being received from the second UE.

A user equipment (UE) tunes a transceiver of the UE to a first frequency associated with a first channel, transmits a first short packet to a second UE on the first channel and determines whether a first indication was received from the second UE in response to the first short packet. The first indication indicates that the first channel satisfies one or more predetermined criteria. The UE transmits then the primary data to the second UE on the first channel in response to the first indication being received from the second UE.

A frequency hopping communication system uses measured intensity values, such as RSSI (received signal strength indication) values, of RF signals previously received on a particular channel to generate a signal threshold that is tailored for the particular channel and is to be applied to subsequent frequency hopping processes. The signal threshold is used for determining whether a received RF signal is from an actual transmission or is merely background noise.

Wireless data communication method, for communication between a computer peripheral device and a receiver device including transmitting a datastream from a computer peripheral device to a receiver device, with a wireless communication protocol which may operate with a first frequency band and a second frequency band. Each of the bands may be divided into a plurality of sub-bands, which may be further divided into frequency channels. During a first time slot, the operation frequency channel may be a first operation frequency channel selected according to a first frequency hopping sequence from the frequency channels of one sub-band of the first frequency band. During a second time slot, the operation frequency channel may be selected according to a second frequency hopping sequence from the frequency channels of one sub-band of the plurality of sub-bands of the second frequency band. Adjacent frequency channels of any of the frequency hopping sequences may be of different sub-bands. A device implementing the method is also envisaged.