What question did this study set out to answer?

The aim is to improve wireless transmission capabilities of Field Pick-up Units (FPU) for television broadcasts.

March 3, 2026Open Access

Advanced FPU Realizing Co-channel Full-duplex Transmission

Key Points

The aim is to improve wireless transmission capabilities of Field Pick-up Units (FPU) for television broadcasts.
Improved OFDM based on ARIB STDB71 standards
Utilization of LDM and MIMO technologies
Implementation of multi-hop relay using the same channel
Enabled co-channel operation without interference
Allowed full-duplex transmission using a single frequency channel
Achieved multi-point connections using advanced transmission methods

Abstract

FPU（Field Pick-up Unit）は，テレビ番組用の映像音声を片方向に伝送するための無線装置である．双方向に伝送するためには，2対向のFPU を使用して周波数が異なる二つのチャネルが必要だった．今回，ARIB STDB71方式のOFDM（Orthogonal Frequency Division Multiplexing）を改良し，LDM（Layered Division Multiplexing）やMIMO（Multiple Input Multiple Output）のように，同一チャネルでも混信を分離して使用することが可能になった．また，三つの地点を結ぶような片方向の多段中継も，同一チャネルでの構築が可能になった．

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Authors

Takehide Shibayama

Atsushi Iwashita

Hiroki Kato

Journals

The Journal of The Institute of Image Information and Television Engineers

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Advanced FPU Realizing Co-channel Full-duplex Transmission

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