Patent ID: 8630679

Claim:
A wireless communication unit, comprising: a baseband module and; a radio frequency module, said baseband module including a radiofrequency interface connected to said radio frequency module, for receiving and/or transmitting baseband signals from and/or to said radio frequency module, said radiofrequency module including: a baseband interface, connected to said radiofrequency interface for receiving and/or transmitting said baseband signals to said baseband module; said wireless communication unit having at least two communication modes including at least one mobile phone mode, in which mobile phone mode said wireless communication unit transmits or receives wireless signals via said antenna from and/or to a mobile phone network in accordance with a communication protocol; wherein said wireless communication unit further includes: a clock system connected to said radio frequency interface and said baseband interface, said clock system being configured to provide, in operation, a clock signal to said radio frequency interface and said baseband interface in each of said at least two communication modes, said clock signal within a tolerance of variation of 0.1% of a clock rate selected from the group consisting of: 921.6 MHz, 1013.76 MHz, 1105.92 MHz, 1198.08 MHz, 1290.24 MHz, 1382.4 MHz, 1474.56 MHz, 1566.72 MHz, 1658.88 MHz, 1751.04 MHz, 1843.2 MHz, 1935.36 MHz, 2027.52 MHz, 2119.68 MHz, 2211.84 MHz, 2304 MHz, 2396.16 MHz, 2488.32 MHz, 2580.48 MHz, 2672.64 MHz, 2764.8 MHz, 2856.96 MHz, 2949.12 MHz, 3041.28, MHz, 3133.44 MHz, 3225.6 MHz, 3317.76 MHz, 3409.92 MHz, 3502.08 MHz, 3594.24 MHz, 3686.4 MHz, 3778.56 MHz, 3870.72 MHz, and 3962.88 MHz, wherein said clock rate and harmonics at integer multiples thereof lie outside a voltage controlled oscillator (VCO) range for local oscillator (LO) generation for the wireless signals for each of said at least two communication modes.