发明名称 |
NARROWBAND INTERFERENCE REJECTION FOR ULTRA-WIDEBAND SYSTEMS |
摘要 |
A technique for reducing interference between a direct-sequence ultra-wideband communications system and a narrowband communications system uses interference-rejecting spreading codes to reduce signal power in a frequency band associated with the narrowband communications system. A method of operating an ultra-wideband communications system includes applying an interference-rejecting spreading code to a signal for transmission. The interference-rejecting spreading code is configured to reduce power in a particular frequency band of a transmit or receive power spectral density associated with the ultra-wideband signal without substantially reducing power outside that particular frequency band of the transmit or receive power spectral density associated with the ultra-wideband signal.
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申请公布号 |
US2013223483(A1) |
申请公布日期 |
2013.08.29 |
申请号 |
US201313848845 |
申请日期 |
2013.03.22 |
申请人 |
AT&T INTELLECTUAL PROPERTY I, L.P.;AT&T INTELLECTUAL PROPERTY I, L.P. |
发明人 |
GHASSEMZADEH SAEED S.;BELLORADO JASON VINCENT;TAROKH ASHLEY B. |
分类号 |
H04B1/7097 |
主分类号 |
H04B1/7097 |
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