A user equipment including an antenna arrangement comprising at least three antennas configured for use with a wireless connection is described. The user equipment performs a method including, for each antenna of the at least three antennas, determining a performance metric associated with a data exchange over the wireless connection, ranking each antenna of the at least three antennas based at least in part on the performance metric and selecting, when a data exchange error is detected, one of a first ranked antenna or a second ranked antenna of the at least three antennas for a next data exchange.

Disclosed is a 5th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4th) communication system such as long term evolution (LTE). A device of a terminal, according to various embodiments of the disclosure, can comprise at least one processor and at least one transceiver, which: receives, from a base station, indication information which is determined according to whether channel reciprocity with the base station is satisfied and which is for controlling a beamforming operation of the terminal; and receives, from the base station, a reference signal and transmits uplink data to the base station on the basis of the indication information and the reference signal.

The present invention relates to a method for operating a wireless communication system. The wireless communication system comprises a base station and a terminal. The terminal comprises a plurality of antenna elements and provides at least two antenna array configurations comprising a first antenna array configuration comprising at least two antenna elements having same radio transmission characteristics and a second antenna array configuration comprising at least two antenna elements having different radio transmission characteristics. According to the method, a selection process for selecting and an antenna array configuration of the at least two antenna array configurations is triggered and for each of the at least two antenna array configurations a corresponding figure of merit is determined. The corresponding figure of merit is determined based on corresponding pilot signals received from the base station via the corresponding antenna array configuration. Depending on the figures of merit, an antenna array configuration is activated.

The present disclosure relates to wireless communication methods, network devices, and terminal devices. One example method includes receiving, by a terminal device, configuration information sent by a network device, where the configuration information is used to indicate a beam sweeping type, and determining, by the terminal device, the beam sweeping type based on the configuration information.

An apparatus and method configure a diversity antenna in a portable terminal. The apparatus includes a first antenna, a second antenna, a first communication unit for processing a first communication scheme signal communicated through the first antenna, a second communication unit for processing a second communication scheme signal communicated through the second antenna, and a control unit for configuring the first antenna as a diversity antenna for the second communication unit when the first communication unit is not driven.

According to some embodiments, a wireless device comprises up to eight transmit and receive chains. A method performed by the wireless device comprises: obtaining a sounding reference signal (SRS) antenna switching capability of the wireless device, the antenna switching capability including one or more antenna switching configurations (ASCs); transmitting the SRS antenna switching capability to a network node; and receiving, from the network node, a SRS configuration for one or more SRS resource sets based on at least one of the ASCs.

A method and a device for controlling antenna changeover of a radio receiver having at least two antennas, wherein the device is configured to change over the transmission in the form of transmitting and/or receiving signals by a first antenna of the radio transceiver to a transmission of signals by an additional antenna of the radio transceiver, wherein an antenna changeover decision interval is determined, after which a decision on the changeover between the antennas is provided at an antenna changeover decision time in each case, taking into consideration at least the negative count of preceding successive negative changeover decisions.

An access point for use in a point to multipoint wireless network comprises a sector antenna and an antenna array of antenna elements, the antenna elements not including the sector antenna, and the antenna elements being arranged to receive signals from the same sector as the sector antenna. A first beamformer is configurable to form a first beam from signals received at the antenna array and a selector switch is switchable to at least a first state in which signals received at the sector antenna are connected to a first receiver, and a second state in which signals received from the first beamformer are connected to the first receiver. A scheduler is configured to set the selector switch to the first state for at least a first receive timeslot and to the second state for at least a second receive timeslot.

The disclosed subject matter relates to techniques for determining channel state information (CSI) in New Radio (NR) access communication systems with phase tracking. In one embodiment, a method is provided that comprises receiving, by a device comprising a processer, configuration information from a network device of a wireless communication network indicating that a PTRS protocol has been configured for wireless communications between the device and the network device. The method further comprises, determining, by the device, a resource density of resource elements of the wireless communication network allocated for the phase tracking reference signal protocol, determining, by the device, CSI based on the resource density, and reporting, by the device, the CSI to the network device.

Disclosed are example embodiments of methods, apparatuses and systems supporting beam diversity for multimedia broadcast multicast services. A method may comprise receiving information of one or more beams and abeam-specific repetition pattern for at least one of the one or more beams for transmission of a service from a network device, and receiving the service on the at least one of the one or more beams based on the beam-specific repetition pattern.