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What is a Full Duplex?

Radio frequency

Duplex (telecommunications)

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A Full Duplex communication system allows simultaneous transmission and reception of data on the same frequency band. This technology is crucial for eliminating interference in multi-antenna scenarios. Full Duplex devices consist of units with power division modules, transmit-receive antennas, cancellation antennas, and combination modules. These units divide signals, send and receive data, and perform interference cancellation to ensure efficient bidirectional communication. In wireless communications, Full Duplex operation enables base stations to receive higher priority transmissions while transmitting lower priority data, with power adjustments to mitigate self-interference. Additionally, Full Duplex transceiver arrangements include signal modulators, mixer circuitry, and control systems to manage radio frequency signals for improved performance.

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Patent Full-duplex transceiver Sjöland Henrik, Paliwal Pallavi - Show less +1 more 01 Apr 2021	A full-duplex system allows simultaneous transmission and reception of signals. In the context of the paper, a full-duplex transceiver enables this capability in wireless communication through signal modulation and mixing.
Patent Full-duplex techniques in wireless communications Huang Min, Chen Wanshi, Wei Chao, Li Qiaoyu, Zhang Yu, Ren Yuwei, Wu Liangming, Hao Chenxi, Xu Changlong, Xu Hao - Show less +9 more 04 Mar 2021	Full duplex in wireless communications allows a base station to receive higher priority transmissions while transmitting lower priority communications on overlapping time-frequency resources, mitigating self-interference by reducing transmission power.
Patent Full-duplex communication device and method Liu Daqing, Wang Bin, Liu Xiaocheng, Wang Jun, Li Rong, Qiao Yunfei - Show less +5 more 05 Nov 2020	A full-duplex communication device allows simultaneous transmission and reception, crucial for interference elimination in multi-antenna setups by utilizing power division, cancellation antennas, and signal combination.
Patent A full duplex communication apparatus and method Liu Daqing, Wang Bin, Liu Xiaocheng, Wang Jun, Li Rong, Qiao Yunfei - Show less +5 more 17 Nov 2020	A full duplex allows simultaneous transmission and reception of signals, crucial for eliminating interference in multi-antenna applications, as detailed in the provided research paper.
Book Chapter•DOI Massive Distributed MIMO and Cell-Free Network-Assisted Full Duplex Xiaohu You, Dongming Wang, Jiangzhou Wang - Show less +2 more 01 Jan 2021	Full Duplex enables simultaneous transmission and reception of data on the same frequency. The paper discusses Full Duplex in the context of Massive Distributed MIMO and Cell-Free Network.

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