Method for compensating for a phase error in a reception and/or transmission system having an I/Q interface
OwnerBertram Gunzelmanninventor
Life of this patent
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Abstract
In a method for compensating for a phase error in a reception and/or transmission system having I and Q processing paths, phase corrected I and Q signal components are computed in a computation stage (PC) in a digital signal processing section (10′) of the I and Q signal processing paths.
Claims18
A method for compensating for a phase error in a transmission system having I and Q signal processing paths, comprising the following steps:
- programming a phase error Δφ, previously ascertained by measurement, in a radio frequency transmission stage used in the transmission system into the digital signal processing section of the transmission system when the transmission system is first fitted or when it is maintained;
- and
- computing phase corrected I and Q signal components in a digital signal processing section of the I and Q signal processing paths during transmission mode by correcting I and Q signal components with the programmed constant phase error Δφ.
A method for compensating for a phase error in a reception system having I and Q signal processing paths, comprising the following steps:
- programming a phase error Δφ, previously ascertained by measurement, in a radio frequency reception stage used in the reception system into the digital signal processing section of the reception system when the reception system is first fitted or when it is maintained;
- and
- computing phase corrected I and Q signal components in a digital signal processing section of the I and Q signal processing paths of the reception system during reception mode by correcting I and Q signal components containing phase errors with the programmed constant phase error Δφ.
A reception and/or transmission system having I and Q signal processing paths, comprising a computation unit which is provided in a digital signal processing section of the I and Q signal processing paths and performs phase correction for the I and Q signal components, wherein the computation unit is operable to program a phase error Δφ, previously ascertained by measurement, in a radio frequency transmission stage used in the transmission system into the digital signal processing section of the transmission system when the transmission system is first fitted or when it is maintained;
- and the computation unit is further operable to compute phase corrected I and Q signal components in a digital signal processing section of the I and Q signal processing paths during transmission mode by correcting I and Q signal components with the programmed constant phase error Δφ.
A reception and/or transmission system having I and Q signal processing paths, comprising a computation unit which is provided in a digital signal processing section of the I and Q signal processing paths and performs phase correction for the I and Q signal components, wherein the computation unit is operable to program a phase error Δφ, previously ascertained by measurement, in a radio frequency reception stage used in the reception system into the digital signal processing section of the reception system when the reception system is first fitted or when it is maintained;
- and the computation unit is further operable to compute phase corrected I and Q signal components in a digital signal processing section of the I and Q signal processing paths of the reception system during reception mode by correcting I and Q signal components containing phase errors with the programmed constant phase error Δφ.
Dependencies are inferred from the claim text.