发明名称 |
High data rate CDMA wireless communication system |
摘要 |
High rate CDMA wireless communication is obtained by forming a set of individually gain adjusted subscriber channels. Each channel has a set of orthogonal subchannel codes having a small number of PN spreading chips per orthogonal waveform period. Preferably, the set of sub-channel codes are comprised of four Walsh codes, each orthogonal to the remaining set and four chips in duration. It is also preferred that pilot data be transmitted via a first transmit channel and power control data transmitted via a second transmit channel. The remaining two transmit channels are used for transmitting non-specified digital data including user data or signaling data, or both. One of the two non-specified transmit channels may be configured for BPSK modulation and the other for QPSK modulation.
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申请公布号 |
US6424619(B2) |
申请公布日期 |
2002.07.23 |
申请号 |
US19990234754 |
申请日期 |
1999.01.21 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
ODENWALDER JOSEPH P.;JOU YU-CHEUN;TIEDEMANN, JR. EDWARD G. |
分类号 |
H04B1/707;H04B7/24;H04B7/26;H04J13/00;H04J13/18;H04L1/00;(IPC1-7):H04J11/00 |
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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