The present application relates to beam failure recovery in a cell that includes multiple transmission and reception points (TRPs). In an example, a UE can perform a beam failure detection (BFD) procedure to detect, per TRP, whether a beam failure occurs. The UE can also perform one or more beam failure recovery (BFR) procedures based on the number of beam failures, the type of cell, and/or other related information.

Disclosed is a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure relates to an operating method of a terminal in a power saving state, a method for identifying a terminal and transmitting a paging signal to the terminal at a base station, and a system including such a terminal and such a base station.

Certain aspects of the present disclosure provide techniques for precoding for multi-panel uplink transmission. For codebook-based uplink transmission, a user equipment (UE) can determine one or more preferred or selected precoders for uplink transmission. The precoders can be from an expanded UE codebook that maps a first number of transmit layers at the UE to a second number of antenna ports at the UE, the layers and/or antenna ports associated with multiple uplink transmit panels at the UE. The UE sends an indication to a base station (BS) of the determined precoders and/or sends an uplink transmission using the determined precoders. For non-codebook based uplink transmission the UE receives first and second reference signals (RSs), from first and second ports of a BS, with first and second UE antenna panels. The UE computes precoders to use for uplink transmission based on the RSs.

For example, an apparatus may include a baseband controller configured to control a plurality of dual-polarization Radio Heads (RHs) to communicate a Multiple-Input-Multiple-Output (MIMO) transmission, the baseband controller configured to control a first dual-polarization RH of the plurality of dual-polarization RHs to communicate a first spatial stream of the MIMO transmission with a horizontal-polarization via one or more first dual-polarization antenna elements of the first dual-polarization RH, and to control a second dual-polarization RH of the plurality of dual-polarization RHs to communicate a second spatial stream of the MIMO transmission with a vertical-polarization via one or more second dual-polarization antenna elements of the second dual-polarization RH.

The present disclosure describes devices, systems, and methods for allocating bandwidth among communication links in a telecommunication system. Some aspects can involve identifying multiple transmission modes used to transmit downlink signals via remote units of a telecommunications system to groups of terminal devices. Each group of terminal devices may receive downlink signals using a respective transmission mode. Respective weights can be assigned to the groups of terminal devices based on the transmission modes. The downlink signals, which are provided to each remote unit associate with each group of terminal devices, can be configured using a respective signal power that is associated with a respective weight for the group of terminal devices associated with the respective remote unit.

The present disclosure describes devices, systems, and methods for allocating bandwidth among communication links in a telecommunication system. Some aspects can involve identifying multiple transmission modes used to transmit downlink signals via remote units of a telecommunications system to groups of terminal devices. Each group of terminal devices may receive downlink signals using a respective transmission mode. Respective weights can be assigned to the groups of terminal devices based on the transmission modes. The downlink signals, which are provided to each remote unit associate with each group of terminal devices, can be configured using a respective signal power that is associated with a respective weight for the group of terminal devices associated with the respective remote unit.

Distributed antenna systems (DAS) and methods are disclosed that are aware of cellular user/antenna relationships. The DAS systems and/or methods include or use one or more User Aware Units that provide the functionality of knowing (or, knowledge of) which cellular user(s) each antenna can communicate with (and vice versa). The User Aware Unit functions to gather information about the reception in each antenna in order to identify the cellular users that the respective antenna can communicate with or best communicate with compared to other cellular users.

The present disclosure relates to a method and apparatus for transmitting uplink transmission channels in a wireless communication system. A method, performed by a user equipment (UE), of transmitting an uplink channel includes: determining a transmission resource of at least one physical uplink control channel (PUCCH) for transmitting uplink control information (UCI), determining a transmission resource of a first physical uplink shared channel (PUSCH) to be transmitted to a first transmission and reception point (TRP), the first PUSCH overlapping the at least one PUCCH on a time resource, determining a transmission resource of a second PUSCH to be transmitted to a second TRP, the second PUSCH overlapping the at least one PUCCH on the time resource, multiplexing the UCI to at least one PUSCH from among the first PUSCH and the second PUSCH, transmitting the first PUSCH to the first TRP, and transmitting the second PUSCH to the second TRP.

A communication device is disclosed. The present communication device may include a master including a communication modem, and multiple slaves including antennas. The communication device may execute an artificial intelligence (AI) algorithm and/or a machine learning algorithm, and may communicate with other electronic devices in a 5G communication environment. Therefore, user convenience can be enhanced.

Aspects of the subject disclosure may include, for example, performing dynamic beam selection and coordination to support space division multiplexing (SDM) and Full Duplex operation for integrated access and backhaul (IAB) in 5G new radio (NR) networks. The subject disclosure further describes how an IAB node and a serving parent node can coordinate beams used for access and backhaul links dynamically with over-the-air signaling. Other embodiments are described in the subject disclosure.