Abstract: An apparatus for use in an O-RAN base station includes processing circuitry. To configure the O-RAN base station for signal processing in an O-RAN network, the processing circuitry is to decode an SRS and a DMRS in a UL stream received from at least one UE. Channel estimation is performed based on the SRS to obtain a channel estimate matrix of channel estimates associated with reception of the UL stream. A noise covariance is generated using the DMRS. Beamforming weights are determined using the channel estimate matrix and the noise covariance. Beamforming is performed on UL data corresponding to the UL stream to generate beamformed data streams. The beamforming is based on applying the beamforming weights to the UL data.

Abstract: This disclosure relates to apparatuses, systems, and methods for scheduling user equipment (UE) transmissions, and in particular for scheduling UE transmissions in a 5G New Radio system with a split architecture. The scheduler selects a beamforming algorithm for a UE group that includes a first UE and a second UE, where the beamforming algorithm is based on characteristics of the beamforming algorithm and/or the UE group. The scheduler determines an effective SINR for the UE group based on the beamforming algorithm and determines a summed proportion fair metric for the UE group based on the effective SINR for the UE group. The scheduler schedules a transmission for either the first UE or the UE group, based on a proportional fair metric for the first UE and the summed proportional fair metric for the UE group.

Abstract: A wireless communication system includes a radio head and a radio head processor, comprising a first processing subsystem, configured to process a signal according to a first radio access technology; the new radio distributed unit, comprising a second communication port, configured to couple the new radio distributed unit to the radio head; a third communication port, configured to couple the new radio distributed unit to a new radio centralized unit or an edge network processor; and a new radio distributed unit processor, comprising a second processing subsystem, and configured to process a signal according to the first radio access technology; wherein either the radio head processor or the new radio distributed unit processor further comprises a third processing subsystem, configured to process a signal according to a second radio access technology, different from the first radio access technology.