Abstract: A first network entity of a communications network can generate compressed beamforming weights (“BFWs”) based on a transformation configuration. The transformation configuration can be based on one or more parameters of an antenna array associated with a second network entity of the communications network. The one or more parameters can include a parameter that is separate from a total number of antenna ports in the antenna array. The first network entity can further transmit an indication of the compressed BFWs to the second network entity via a fronthaul between the first network entity and the second network entity.

Abstract: A method (1700) for antenna power scaling in a fronthaul lower-layer split, LLS, is provided. The method is performed by a baseband unit, BBU (102, 202, 302), for assisting a Radio Unit, RU (104, 204, 304), in scaling a transmit power of one or more antennas when performing beamforming. The method includes transmitting (1702) at least one antenna power scaling factor to the RU for scaling the transmit power of the one or more antennas.

Abstract: A method 1700 is performed by a baseband unit (BBU) 104 for scaling beamforming weights (BFWs) to assist a Radio Unit (RU) 102 with beamforming. The method includes obtaining 1702 a plurality of frequency-domain BFWs for beamforming of a number of downlink data streams in frequency-domain to be transmitted to at least one wireless device via a plurality of antennas. The BBU scales 1704 the plurality of frequency-domain BFWs based on at least one scaling factor and compresses 1706 the plurality of scaled frequency-domain BFWs. The BBU transmits 1708, to the RU, the scaled frequency-domain BFWs that have been compressed. The BBU also determines 1710 at least one user plane scaling factor for frequency-domain user plane IQ data, scales 1712 the frequency-domain user plane IQ data based on the user plane scaling factors, and transmits 1714 the scaled frequency-domain user plane IQ data to the RU.

Abstract: There is provided mechanisms for managing uplink transmission of user data. A method is performed by a baseband unit. The baseband unit is operatively connected to at least two radio units. The method comprises sending a control message to the at least two radio units. The control message comprises parameters pertaining to transmission of uplink user data from the at least two radio units to the baseband unit. The parameters specify a transmission window per each of the at least two radio units for the transmission of uplink user data to the baseband unit. The method comprises receiving uplink user data from the at least two radio units in accordance with the parameters.

Abstract: A method by performed by a network node operating as a Distributed Unit (DU) includes configuring a plurality of Transmit/Receive Points (TRPs) in a group of TRPs to transmit a plurality of signals in a multiplexed sequence to at least one wireless device. Each TRP in the group of TRPS is associated with a shared cell. The network node receives, from the at least one wireless device, a response signal. Based on the response signal, the network node determines at least one TRP from the group of TRPs for use in transmitting at least one additional signal to the at least one wireless device.

Abstract: Communication between a Radio Equipment Control (REC) and a Radio Equipment (RE) in a wireless network uses a Common Public Radio Interface connection. When the Radio Equipment Control and the Radio Equipment are located remote from each other, and are connected by an asymmetric transport network, such as an Optical Transport Network, path delay data is transmitted in the Common Public Radio Interface data frames. This allows the CPRI end nodes to correct for path delay asymmetry using the path delay data.

Abstract: Communication between a Radio Equipment Control (REC) and a Radio Equipment (RE) in a wireless network uses a Common Public Radio Interface connection. When the Radio Equipment Control and the Radio Equipment are located remote from each other, and are connected by an asymmetric transport network, such as an Optical Transport Network, path delay data is transmitted in the Common Public Radio Interface data frames. This allows the CPRI end nodes to correct for path delay asymmetry using the path delay data.