发明名称 |
Spread spectrum base station notch filtering transmitted signals |
摘要 |
A base station is in a spread spectrum code division multiple access (CDMA) communication system which co-exists with a diverse system of existing users. The diverse system selectively utilizes various frequencies within a selected range of frequencies. The base station generates a plurality of spread spectrum CDMA data signals using pseudo random chip code sequences. The spread data signals encompass the selected range. The base station notch filters the spread data signals at frequencies within the selected range used by the diverse system. The notch filtered spread data signals are transmitted in CDMA cellular radio communications.
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申请公布号 |
US2004160926(A1) |
申请公布日期 |
2004.08.19 |
申请号 |
US20040782165 |
申请日期 |
2004.02.19 |
申请人 |
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发明人 |
SCHILLING DONALD L. |
分类号 |
H04B1/707;H04B7/005;(IPC1-7):H04B7/216 |
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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