Invention Application
US20050135457A1 Ultra wide bandwidth transmitter with tone grouping and spreading
审中-公开
具有音调分组和扩展的超宽带宽发射机
- Patent Title: Ultra wide bandwidth transmitter with tone grouping and spreading
- Patent Title (中): 具有音调分组和扩展的超宽带宽发射机
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Application No.: US10741564Application Date: 2003-12-19
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Publication No.: US20050135457A1Publication Date: 2005-06-23
- Inventor: Andreas Molisch , Yves-Paul Nakache , Philip Orlik , Iyappan Ramachandran
- Applicant: Andreas Molisch , Yves-Paul Nakache , Philip Orlik , Iyappan Ramachandran
- Main IPC: H04B1/69
- IPC: H04B1/69 ; H04L5/02
Abstract:
A method and system communicates ultra wide bandwidth signals using orthogonal frequency division multiplexing modulation. QPSK input symbols are frequency interleaved. The frequency interleaved symbols are spread over a plurality of tones, and the tones are modulated for transmission over an ultra wide bandwidth channel. When the tones are received, the received tones can be de-spreaded to recover the input symbols.
Information query
