Linear precoding in OTFS time-selective fading channels
WO2025219973A1PCT designated stage Publication Date: 2025-10-23CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH +1
Patent Information
- Application Number
- PCT/IB2025/054123
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-04-18
- Filing Date
- 2025-04-18
- Publication Date
- 2025-10-23
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Figure IB2025054123_23102025_PF_FP_ABST
Abstract
A method of transmitting information symbols over an OTFS communication channel subject to time-selective fading comprises precoding information symbols to be transmitted, yielding precoded information symbols, and arranging the precoded information symbols into the two-dimensional delay-Doppler domain, yielding a symbol matrix in the delay-Doppler domain. The symbol matrix in the delay-Doppler domain is then converted into an OTFS time-domain signal for transmission over the OTFS communication channel. The precoding comprises multiplying the information symbols to be transmitted with a precoding matrix having a trace that equals the product of the numbers or dimensions of the OTFS delay and Doppler resource grids, and whose elements are targeted to maximise a coding gain and / or a diversity gain on the OTFS communication channel.
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Citation Information
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