Invention Grant
- Patent Title: Modulation method and device delivering a multicarrier signal, and corresponding demodulation method and device and computer program
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Application No.: US14894877Application Date: 2014-05-28
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Publication No.: US10057097B2Publication Date: 2018-08-21
- Inventor: Hao Lin , Pierre Siohan
- Applicant: Orange
- Applicant Address: FR Paris
- Assignee: ORANGE
- Current Assignee: ORANGE
- Current Assignee Address: FR Paris
- Agency: Westman, Champlin & Koehler, P.A.
- Agent David D. Brush
- Priority: FR1354842 20130528
- International Application: PCT/FR2014/051275 WO 20140528
- International Announcement: WO2014/191693 WO 20141204
- Main IPC: H04L27/26
- IPC: H04L27/26
Abstract:
A method is provided for modulating data symbols, outputting a multi-carrier signal, implementing: a mathematical transform, which transforms data symbols from the frequency domain to a time domain, outputting transformed symbols; and a polyphase filtering, which filters the transformed symbols, outputting the multi-carrier signal. The polyphase filtering uses an expansion factor taking account of a compression factor τ, the compression factor τ being a number between 0 and 1 such that the multi-carrier signal can be transmitted at a Faster-Than-Nyquist rate.
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