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SWITCHING BETWEEN NARROWER AND WIDER CHANNEL FILTERS WHEN SWITCHING BETWEEN MULTIPLE ADJACENT CHANNEL AND SINGLE CHANNEL MODES
SWITCHING BETWEEN NARROWER AND WIDER CHANNEL FILTERS WHEN SWITCHING BETWEEN MULTIPLE ADJACENT CHANNEL AND SINGLE CHANNEL MODES
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机译:在多个相邻通道和单通道模式之间切换时,在窄通道和宽通道滤波器之间进行切换
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摘要
The dual-mode processor (100) and corresponding method described herein selectively switches between a single-frequency mode, such as appropriate for an EDGE network, and a multiple-frequency mode, such as appropriate for a multi-carrier EDGE network. The pulse-shaping filters (144) used during the multiple-frequency mode have a different filter response than the single-channel filter (134) used during the single-frequency mode. The filter response of the pulse-shaping filters (144) used during the multiple-frequency mode reduces cross-channel interference caused by the data symbols of two or more adjacent frequency channels that have the same or similar modulation and power level.
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