US 7,321,629 B2
Method and apparatus for protecting and transmitting the side information related to peak-to-average power ratio reduction in a multicarrier system
Chih-Chun Feng, Yun Lin (Taiwan); Yung-Hua Hung, Hsinchu (Taiwan); Chih-Yaw Wang, Chang Hua (Taiwan); and Chun-Yu Lin, Taipei (Taiwan)
Assigned to Industrial Technology Research Institute, Hsinchu (Taiwan)
Filed on Jul. 03, 2003, as Appl. No. 10/613,419.
Claims priority of application No. 92101624 A (TW), filed on Jan. 24, 2003.
Prior Publication US 2004/0146115 A1, Jul. 29, 2004
Int. Cl. H04K 1/10 (2006.01); H04L 27/08 (2006.01)
U.S. Cl. 375—260  [375/259] 32 Claims
OG exemplary drawing
 
15. An apparatus for encoding and transmitting the side information related to peak-to-average power ratio (PAPR) reduction in a multicarrier system, comprising:
a multicarrier modulator for modulating data onto multiple sub-carriers and generating a data modulated signal, wherein said multicarrier modulator comprises a PAPR reduction device to reduce a PAPR level of said data modulated signal and reserves a plurality of sub-carriers for encoding and transmitting said side information;
a side information coding and modulation device for coding and modulating said side information onto said plurality of sub-carriers and generating a side information modulated signal;
an adder for combining said data modulated signal and said side information modulated signal, and generating a transmitted signal; and
a parameter control device for PAPR reduction for determining said side information according to the PAPR level of said data modulated signal.