Transmission of beamforming weight coefficients from digital baseband unit to remote radio unit

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United States of America Patent

PATENT NO 10484063
SERIAL NO

15971578

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A split radio access network is provided that efficiently transmits beamforming coefficients from a distributed baseband unit device to a remote radio unit device to facilitate beamforming at the remote radio unit. The beamforming coefficients can be determined at the baseband unit device and transmitted along with the data to be beamformed to the remote radio unit device. Due to the large number of antenna ports however, there can still be a very large number of coefficients to transmit, and the disclosure provides for a compressed set of coefficients that reduces the overhead signaling requirements. Instead of sending coefficients for every kth antenna port, the system can select a subset of the coefficients corresponding to a set of k antenna ports which can be used by the remote radio unit to approximate the full set of beamforming coefficients.

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Patent Owner(s)

  • AT&T INTELLECTUAL PROPERTY I, L.P.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chopra, Aditya Austin, US 70 116
Ghosh, Arunabha Austin, US 429 2053
Majmundar, Milap Austin, US 165 1055
Nammi, SaiRamesh Austin, US 327 719

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