发明名称 |
CHANNEL SHAPING CODE GENERATION FOR RADIO COMMUNICATION SYSTEMS |
摘要 |
FIELD: variable-speed data transmission. SUBSTANCE: transmitter incorporating in-phase circuit and quadrature circuit for transmitting composite signal with extended spectrum for at least two physical channels has facility coupled with mentioned in-phase circuit for data extension using first extension code from code tree and facility coupled with mentioned quadrature circuit for data extension using second extension code chosen from code tree; first and second extension codes have different number of elements and are chosen from code tree so as to ensure that first and second extended physical channels generated by them are relatively orthogonal. EFFECT: provision for equalizing power between transmitter circuits. 22 cl, 4 dwg
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申请公布号 |
RU2197787(C2) |
申请公布日期 |
2003.01.27 |
申请号 |
RU20000103213 |
申请日期 |
1998.07.03 |
申请人 |
TELEFONAKTIEBOLAGET LM EHRIKSSON (PABL) |
发明人 |
OVESHE FREDERIK;DAL'MAN EHRIK |
分类号 |
H04J13/04;H04B7/26;H04J11/00;H04Q7/38;(IPC1-7):H04J13/04 |
主分类号 |
H04J13/04 |
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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