Apparatus and method for modulating data message by employing orthogonal variable spreading factor (OVSF) codes in mobile communication system

Abstract

A method for converting source data to a channel-modulated signal having pairs of in-phase (I) and quadrature-phase (Q) data in a mobile station, wherein the mobile station includes: encoding the source data to generate at least one data part and a control pant; generating a spreading code to allocate to a channel, wherein each spreading code is selected on the basis of a data rate of the data part and the control part and spreading codes are selected so two consecutive pairs of I and Q data correspond to two points located on same point or symmetrical with respect to a zero point on a phase domain; and spreading the control part and the data part with the spreading code, to generate the channel-modulated signal. The method is capable of improving a power efficiency of a mobile station of a mobile communication system by reducing a peak-to-average power ratio.

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Not Available	16/06/2003	ISLD-200307-002	ETRI	S1 TS Number: TS 125 211 Version No: ---- Illustrative part: ---- Release: ---- S2 TS Number: TS 125 212 Version No: ---- Illustrative part: ---- Release: ---- S3 TS Number: TS 125 214 Version No: ---- Illustrative part: ---- Release: ---- S4 TS Number: TS 125 213 Version No: ---- Illustrative part: ---- Release: ---- +3 -3	No	Family Member
Not Available	03/11/2008	ISLD-200811-002	ETRI	S1 TS Number: TS 125 213 Version No: ---- Illustrative part: 4 Release: ---- + -	No	Family Member
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US7443906B1	Not Available	03/11/2008	ISLD-200811-002	ETRI	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	Yes	Basis Patent
US7443906B1	Not Available	03/11/2008	ISLD-200811-002	ETRI	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	No	Family Member
US7443906B1	Not Available	03/11/2008	ISLD-200902-011	SPH AMERICA LLC	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	Yes	Basis Patent
US7443906B1	Not Available	03/11/2008	ISLD-200902-011	SPH AMERICA LLC	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	No	Family Member
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US2007104086A1	Not Available	03/11/2008	ISLD-200811-002	ETRI	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	Yes	Basis Patent
US2007104086A1	Not Available	03/11/2008	ISLD-200811-002	ETRI	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	No	Family Member
US2007104086A1	Not Available	03/11/2008	ISLD-200902-011	SPH AMERICA LLC	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	Yes	Basis Patent
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US7586973B2	Not Available	03/11/2008	ISLD-200811-002	ETRI	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	Yes	Basis Patent
US7586973B2	Not Available	03/11/2008	ISLD-200811-002	ETRI	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	No	Family Member
US7586973B2	Not Available	03/11/2008	ISLD-200902-011	SPH AMERICA LLC	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	Yes	Basis Patent
US7586973B2	Not Available	03/11/2008	ISLD-200902-011	SPH AMERICA LLC	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	No	Family Member
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US2009097580A1	Not Available	03/11/2008	ISLD-200811-002	ETRI	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	Yes	Basis Patent
US2009097580A1	Not Available	03/11/2008	ISLD-200811-002	ETRI	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	No	Family Member
US2009097580A1	Not Available	03/11/2008	ISLD-200902-011	SPH AMERICA LLC	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	Yes	Basis Patent
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US8121173B2	Not Available	03/11/2008	ISLD-200811-002	ETRI	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	Yes	Basis Patent
US8121173B2	Not Available	03/11/2008	ISLD-200811-002	ETRI	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	No	Family Member
US8121173B2	Not Available	03/11/2008	ISLD-200902-011	SPH AMERICA LLC	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	Yes	Basis Patent
US8121173B2	Not Available	03/11/2008	ISLD-200902-011	SPH AMERICA LLC	S1 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- + -	No	Family Member
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GB2352944B	Not Available	16/06/2003	ISLD-200307-002	ETRI	S1 TS Number: TS 125 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 125 212 Version No: -- Section No: -- Release : -- S3 TS Number: TS 125 214 Version No: -- Section No: -- Release : -- S4 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- +3 -3	No	Family Member
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HK1033522A1	Not Available	16/06/2003	ISLD-200307-002	ETRI	S1 TS Number: TS 125 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 125 212 Version No: -- Section No: -- Release : -- S3 TS Number: TS 125 214 Version No: -- Section No: -- Release : -- S4 TS Number: TS 125 213 Version No: -- Section No: -- Release : -- +3 -3	No	Family Member
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Apparatus and method for modulating data message by employing orthogonal variable spreading factor (OVSF) codes in mobile communication system

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