A communication technique and a system thereof for are provided fusing a 5G communication system to support higher data rates, which is subsequent to the 4G system, with IoT technology. The disclosure may be applied to intelligent services (e.g., smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safe-related services, etc.) based on 5G communication technology and IoT-related technology. A method of operating a base station in a wireless communication system includes transmitting channel feedback configuration information to a terminal; receiving channel feedback information from the terminal; and performing transmission/reception of data, based on the channel feedback information. The channel feedback information may include information indicating a state of an antenna panel of the terminal.

This application discloses example power control methods and apparatuses. One example method includes receiving, by a first node, first information sent by a second node, where the first information is used to determine a first transmit power, where the first transmit power is a power used when the first node sends downlink information to the second node through a first link, where the first link is a link between the first node and the second node, and where the first node is an upper-level device of the second node. The first node can then determine the first transmit power based on the first information.

This application discloses example power control methods and apparatuses. One example method includes receiving, by a first node, first information sent by a second node, where the first information is used to determine a first transmit power, where the first transmit power is a power used when the first node sends downlink information to the second node through a first link, where the first link is a link between the first node and the second node, and where the first node is an upper-level device of the second node. The first node can then determine the first transmit power based on the first information.

Processing circuitry, which is configured to process a wireless signal received through at least one antenna, includes: at least one segment deparser configured to generate a data stream from segments respectively corresponding to different frequency bands; at least one rearranger configured to rearrange the data stream to generate a rearranged data stream; and a stream deparser configured to generate a bitstream based on the data stream or the rearranged data stream according to a reception mode, the reception mode being defined based on a bandwidth and multiple-input and multiple-output (MIMO) used for transmission of the wireless signal.

Processing circuitry, which is configured to process a wireless signal received through at least one antenna, includes: at least one segment deparser configured to generate a data stream from segments respectively corresponding to different frequency bands; at least one rearranger configured to rearrange the data stream to generate a rearranged data stream; and a stream deparser configured to generate a bitstream based on the data stream or the rearranged data stream according to a reception mode, the reception mode being defined based on a bandwidth and multiple-input and multiple-output (MIMO) used for transmission of the wireless signal.

Embodiments of this application provide a power allocation method and a related device. The method includes: receiving, by a terminal device, first downlink control information sent by a network device, where the first downlink control information includes first power allocation information for a plurality of transport layers; determining, by the terminal device, a first transmit power of each of the plurality of transport layers based on the first power allocation information; and sending, by the terminal device, first uplink data based on the first transmit power of each transport layer. Transmission efficiency of a system can be improved by implementing the embodiments of this application.

Aspects of the subject disclosure may include, for example, obtaining, over an uplink (UL) using an aggregation of modular antenna arrays, a modulated signal that includes feedback transmitted by a user equipment (UE), wherein the aggregation of modular antenna arrays comprises multiple groups of antenna elements, after the obtaining the modulated signal, performing a demodulation of the modulated signal, determining demodulator constellation errors from the demodulation of the modulated signal, performing an error gradient weight adaptation responsive to the determining the demodulator constellation errors to derive revised weights for various antenna elements of the multiple groups of antenna elements, and applying the revised weights to the various antenna elements of the multiple groups of antenna elements to adjust signals received over the UL. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, obtaining, over an uplink (UL) using an aggregation of modular antenna arrays, a modulated signal that includes feedback transmitted by a user equipment (UE), wherein the aggregation of modular antenna arrays comprises multiple groups of antenna elements, after the obtaining the modulated signal, performing a demodulation of the modulated signal, determining demodulator constellation errors from the demodulation of the modulated signal, performing an error gradient weight adaptation responsive to the determining the demodulator constellation errors to derive revised weights for various antenna elements of the multiple groups of antenna elements, and applying the revised weights to the various antenna elements of the multiple groups of antenna elements to adjust signals received over the UL. Other embodiments are disclosed.

A method implemented by a wireless transmit/receive unit (WTRU) having multiple antennas includes determining, by the WTRU, information that is associated with a baseband channel and that indicates any of measurement information and channel information, and transmitting, by the WTRU, a signal for requesting baseband beam tracking, on condition that any of: (1) the WTRU determines, according to the indicated information, that: (i) system performance is degraded in a hybrid beamforming transmission, and (ii) re-estimation of the baseband channel is part of a current link adaptation procedure, and (2) detailed baseband channel information was not part of a multiple-in multiple-out (MIMO) setup procedure.

Supporting distributed massive multiple-input multiple-output (DM-MIMO) in a distributed communications system (DCS) is disclosed. The DCS includes multiple remote units each configured to communicate downlink and uplink radio frequency (RF) communications signals with a number of user equipment (UEs) at different UE locations in the DCS. Each remote unit includes multiple antennas, multiple RF chains, and an RF switch circuit configured to dynamically couple the RF chains to a subset of antennas in accordance to the UE locations such that the subset of antennas can be activated to concurrently radiate the downlink RF communications signals and absorb the uplink RF communications signals. By dynamically activating the subset of antennas in accordance to the UE locations, it is possible to optimize signal strength and channel quality for each UE in the DCS, thus making it possible to improve wireless data capacity of the DCS with negligible additional hardware cost.