Apparatus and method for correcting common phase error in a multi-carrier communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsJoo-Hyun LEE, Sang-Boh YUN, Ki-Young HAN, Young-Hoon KWON
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Abstract
An apparatus and method for correcting a CPE in a signal reception apparatus of a multi-carrier communication system are provided, in which an auto-correlation of a reference signal estimated from a reference symbol among a plurality of symbols is detected, a cross-correlation between a channel estimate of the reference signal and an actual received reference signal is detected, and the CPE of the remaining symbols except the reference symbol is corrected using the auto-correlation and the cross-correlation.
Claims20
A method for correcting a Common Phase Error (CPE) in a signal reception apparatus of a multi-carrier communication system, the method comprising:
- detecting an auto-correlation of a reference signal estimated from a reference symbol among a plurality of symbols and a cross-correlation between a channel estimate of the reference signal and an actual received reference signal;
- and
- correcting the CPE of the remaining symbols except the reference symbol using the auto-correlation and the cross-correlation.
A method for correcting a Common Phase Error (CPE) in a signal reception apparatus of a multi-carrier communication system, the method comprising:
- detecting channel estimates of reference signals in two reference symbols among a plurality of symbols and generating a new channel estimate using the channel estimates of the reference symbols according to a channel estimation scheme;
- and
- detecting an auto-correlation of a reference signal estimated from each of the remaining symbols except the reference symbols and a cross-correlation between the new channel estimate and an actual received reference signal of the each symbol, and correcting the CPE of the each symbol using the auto-correlation and the cross-correlation.
An apparatus for correcting a Common Phase Error (CPE) in a signal reception apparatus of a multi-carrier communication system, the apparatus comprising:
- a CPE corrector for detecting an auto-correlation of a reference signal estimated from a reference symbol among a plurality of symbols and a cross-correlation between a channel estimate of the reference signal and an actual received reference signal, and for generating a CPE correction value using the auto-correlation and the cross-correlation;
- and
- a multiplier for correcting the CPE of the remaining symbols except the reference symbol using the CPE correction value.
An apparatus for correcting a Common Phase Error (CPE) in a signal reception apparatus of a multi-carrier communication system, the apparatus comprising:
- a CPE corrector for detecting channel estimates of reference signals in two reference symbols among a plurality of symbols, for generating a new channel estimate using the channel estimates of the reference symbols according to a channel estimation scheme, for detecting an auto-correlation of a reference signal estimated from each of the remaining symbols except the reference symbols and a cross-correlation between the new channel estimate and an actual received reference signal of the each symbol, and for generating a CPE correction value using the auto-correlation and the cross-correlation;
- and
- a multiplier for correcting the CPE of the each symbol using the CPE correction value.
Dependencies are inferred from the claim text.