发明名称 |
DEVICE AND METHOD FOR SPREADING CHANNELS IN MOBILE COMMUNICATION SYSTEM |
摘要 |
Disclosed is a channel spreading device for a base station device in a CMDA communication system for spreading input symbols using a first quasi-orthogonal code having a first length or channel spreading the input symbols using a second quasi-orthogonal code having a second length which is a multiple of the first length. The device comprises a spreading code generator for generating the second quasi-orthogonal code; a channel spreader for providing a plurality of durations by dividing a duration of the second quasi-orthogonal code by said multiple of the length of the first quasi-orthogonal code, and spreading channel coded symbols with the quasi-orthogonal codes divided to have a length corresponding to the divided durations so as to spread the symbols identical in number to said multiple of the first quasi-orthogonal code duration at the duration of the second quasi-orthogonal; and a PN spreader for spreading the channel spread signal with a PN code. |
申请公布号 |
EP1060578(A4) |
申请公布日期 |
2005.06.15 |
申请号 |
EP19990961492 |
申请日期 |
1999.12.29 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM, JAE-YOEL;AHN, JAE-MIN;KANG, HEE-WON;MAENG, SEUNG-JOO |
分类号 |
H04B1/707;H04B7/216;H04B7/26;H04J11/00;H04J13/00;H04J13/02;H04Q7/38 |
主分类号 |
H04B1/707 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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