British Telecommunications Public Limited Company

Xinyu Gao

Richard MacKenzie

Mo Hao

Linglong Dai

Bichai Wang

According to the present disclosure there is provided a multiple-input-multiple-output (MIMO) transmitter for transmitting wireless communication signals over a communication channel to a receiver, the transmitter including a digital signal processor configured to perform pre-coding on a plurality Nof data streams; a plurality Nof radio-frequency (RF) chains each configured to pass a pre-coded data stream from the digital signal processor to generate a signal representing that data stream; a lens antenna array comprising an array of Nantenna elements; and a selecting unit coupled between the plurality Nof RF chains and the lens antenna array, the selecting unit including a plurality of separate coupling units each configured to couple a respective RF chain to a selective sub-array of Nantenna elements concurrently for transmitting the signal representing the data stream passed through that RF chain.

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London, United Kingdom

Xinyu Gao