Clocking scheme for a wireless communication device

摘要

The invention relates to a method and a system for generating clock signals in a wireless communication device. The method includes generating an uncorrected reference clock signal, generating at least one frequency correction value corresponding to a frequency error in the uncorrected reference clock signal, and generating at least one radio frequency clock signal based on the uncorrected clock signal and the at least one frequency correction value, for receiving and transmitting radio frequency signals. The method further comprise generating, independently of the at least one radio frequency clock signal, a baseband timing signal based on the uncorrected reference clock signal and the at least one frequency correction value, for clocking base-band signal processing circuits.

主权项

1. A method for generating clock signals in a wireless communication device including a transceiver, a baseband (BB) circuit and a system part, the method comprising:
generating an uncorrected reference clock signal in the transceiver; providing the uncorrected reference clock signal to the BB circuit and to the system part; generating a frequency correction value corresponding to a frequency error in said uncorrected reference clock signal, in the BB circuit; providing the frequency correction value to the transceiver; generating a corrected reference signal in the transceiver, based on the uncorrected reference clock signal and the frequency correction value; and converting
a radio frequency (RF) analog signal received in the transceiver into a receive BB digital signal provided to the BB circuit, using the corrected reference signal; and/ora transmit BB digital signal received by the transceiver from the BB circuit, into a transmit RF analog signal using the corrected reference signal.