An apparatus and a method are disclosed by which transmit power for each antenna element of an antenna array for beamforming is determined by determining a weight vector including a weight for each antenna element according to a specific beamforming procedure, it is detected whether at least one of the plurality of antenna elements is saturated, wherein an antenna element is saturated when the determined transmit power for this antenna element is higher than a threshold, and, when it is detected that there is at least one saturated antenna element, the transmit power for each antenna element of the antenna array is adjusted such that a part of the transmit power allocated to the at least one saturated antenna element is allocated to at least one antenna element of the antenna array which is not saturated based on the weight vector determined according to the specific beamforming procedure.

The method comprises receiving periodic CSI feedback configuration information including a periodicity value and an offset value corresponding to a first CSI report, and at least one periodicity value and at least one offset value corresponding to a second CSI report, measuring a first CSI reference signal (CSI-RS) and a second CSI-RS configured for a periodic CSI reporting based on at least two different enhanced MIMO types (eMIMO-Types), generating the first CSI report and the second CSI report for the first eMIMO-Type and the second eMIMO-Type, respectively, determining a periodic reporting interval for each of the first CSI report and the second CSI report, and reporting the first and second CSI reports based on the determined periodic reporting intervals using a physical uplink control channel (PUCCH) format 2 or a PUCCH format 3 or a combination of the PUCCH format 2 and the PUCCH format 3.

Methods and systems are described for transmitting data to a node using a plurality of radio frequency channels. The data may be allocated, based on feedback from the node, into various portions amongst multiple radio frequency channels and/or amongst tones associated with the radio frequency channels. The data portions may be transmitted to the node, using frequency diversity, via respective radio frequency channels as at least part of respective orthogonal frequency division multiplexing (OFDM) transmissions, which may be at least partially concurrent transmissions.

An apparatus and a method are disclosed by which transmit power for each antenna element of an antenna array for beamforming is determined by determining a weight vector including a weight for each antenna element according to a specific beamforming procedure, it is detected whether at least one of the plurality of antenna elements is saturated, wherein an antenna element is saturated when the determined transmit power for this antenna element is higher than a threshold, and, when it is detected that there is at least one saturated antenna element, the transmit power for each antenna element of the antenna array is adjusted such that a part of the transmit power allocated to the at least one saturated antenna element is allocated to at least one antenna element of the antenna array which is not saturated based on the weight vector determined according to the specific beamforming procedure.

Methods and systems are described for causing orthogonal frequency division multiplexing (OFDM) transmission of various portions of data via various nodes. For example, a first portion of the data may be transmitted, via a first node and using OFDM, to at least a second node. Based on one or more observed capacities associated with one or more nodes (such as the first node and/or another node), it may be determined that a second portion of the data is to be routed via a different node (such as a third node) for transmission. The second portion of the data may be transmitted, via the third node and using OFDM, to at least the second node.

Methods and systems are described for causing orthogonal frequency division multiplexing (OFDM) transmission of various portions of data via various nodes. For example, a first portion of the data may be transmitted, via a first node and using OFDM, to at least a second node. Based on one or more observed capacities associated with one or more nodes (such as the first node and/or another node), it may be determined that a second portion of the data is to be routed via a different node (such as a third node) for transmission. The second portion of the data may be transmitted, via the third node and using OFDM, to at least the second node.

A uniform circular array (UCA) is assisted with an analog inverse fast Fourier Fast transform (IFFT)/fast Fourier transform (FFT) precoder to reduce computational complexity in one or more line-of-sight (LoS) multiple-input multiple-output (MIMO) networks. Each port of the UCA includes a steerable miniaturized array with beam steering capability. Analog beam steering is performed via one of the analog IFFT/FFT precoder or one of the steerable miniaturized arrays in a port of the UCA, for improving one or more properties of steering one or more beams toward one or more intended destinations in the one or more LoS MIMO networks.