| 发明名称 |
APPARATUS AND METHOD FOR MODULATION AND DEMODULATION USING FREQUENCY SELECTIVE BASEBAND |
| 摘要 |
Provided are modulation and demodulation methods and apparatuses using a frequency selective baseband. The frequency modulation method includes: generating a plurality of subgroups by dividing 2N (N is a real number) spread codes used for frequency spreading into 2M (M<N, M is a real number) spread codes; selecting P(P is a real number) subgroups among the generated subgroups; acquiring P spread codes by inputting M data bits to each of the p subgroups so as for 1 spread code to be selected among the 2M spread codes of each subgroup; and selecting dominant value among the acquired P spread codes to generate transmitting data including the dominant value. Accordingly, it is possible to increase a processing gain of the entire system, to increase a transmission data rate, and to reduce power consumption of the system. |
| 申请公布号 |
US2010171562(A1) |
申请公布日期 |
2010.07.08 |
| 申请号 |
US20080601584 |
申请日期 |
2008.04.11 |
| 申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTIT |
发明人 |
LIM IN GI;PARK HYUNG II;KANG SUNG WEON;KANG TAE WOOK;HYOUNG CHANG HEE;HWANG JUNG HWAN;KIM KYUNG SOO;KIM JUNG BUM;PARK DUCK GUN;KIM JIN KYUNG;KIM SUNG EUN;PARK KI HYUK;SHIM JAE HOON |
| 分类号 |
H03C3/02;H03D3/00 |
主分类号 |
H03C3/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
