Reception and transmission from at least two sets of antenna ports on a high speed train are controlled, wherein the at least two sets of antenna ports are installed at different locations on the high speed train. This involves determining a velocity and the position of each of the antenna ports, and using these as a basis for determining a reception combining scheme and/or transmission scheme from the sets of antenna ports. Signals are transmitted and received from the sets of antenna ports in conformance with the determined reception combining and/or transmission scheme.

Channel estimation where at least two sets of multipath components for a reception range are formed by applying spatial filtering to reference signal information measured by a communication device. Each set of multipath components comprises a number of multipath components that is less than the number of multipath components for the range. Separate parameter estimations are performed on the at least two sets of multipath components. The communication device may be a mobile device, and measurements may be provided by the mobile device in multiple of locations.

A method performed in an electronic device is provided. The method includes: collecting operation information on at least one of a data communication operation, a paging operation, and a voice communication operation of a first antenna, a second antenna, or a third antenna; determining at least one antenna to be used of the first antenna, the second antenna, and third antenna based on at least part of the collected operation information; and performing communication by using the determined antenna.

To switch a TCI state, QCL assumption, or a beam of a channel at high speed, a user terminal according to one aspect of the present disclosure includes: a receiving section that receives information regarding a plurality of reference signals associated with one or more Transmission Configuration Indicator (TCI) states; and a control section that controls reception of a downlink physical channel assuming quasi-co-location with at least one of the plurality of reference signals.

A system and method for beamforming beams including: matching weights T to a distribution of resources for each of the beams based on a traffic variation for each of the beams; calculating, with a signal processor for each of the beams based on the weights T, a power scalar β and a weighted minimum mean squared error (WMMSE) matrix W.sub.WMSE; and transmitting/receiving the beams based on the power scalar β and the WMMSE matrix W.sub.WMSE, where the power scalar β satisfies a total power constraint of an antenna subsystem.

Aspects relate to beam management reports that enable selection of best antenna panel and beam combinations for uplink transmissions from a user equipment (UE) when one or more antenna panels of the UE are subject to a maximum permissible exposure (MPE) limit. The UE receives a reference signal at a plurality of antenna panels, wherein the reference signal is received in different beams on each of the plurality of antenna panels. The UE determines N beams providing highest measured strengths of the reference signal on at least one of the plurality of antenna panels, wherein the MPE limit is to be applied to the at least one of the plurality of antenna panels for uplink transmissions. The UE transmits a beam management report including reduced highest measured strengths of the reference signal in the N beams to account for the MPE limit.

A method for communication processing includes obtaining a received power of each of two antennas in an antenna system of a mobile device; determining a difference between the received powers of the two antennas; determining a confidence level based on the difference, the difference being proportional to the confidence level; and determining a communication mode of the antenna system for communication based on the confidence level.

The present disclosure relates to a communication technique for converging IoT technology with a 5G communication system for supporting a higher data transmission rate beyond a 4G system, and a system therefor. The present disclosure may be applied to an intelligent service (for example, a smart home, a smart building, a smart city, a smart car or connected car, health care, digital education, retail business, a security and safety-related service, etc.) on the basis of 5G communication technology and IoT-related technology. A communication method of a terminal of a mobile communication system, according to one embodiment of the present specification, comprises the steps of: acquiring moving speed information of a terminal; determining a reception beam candidate group on the basis of the moving speed information; and determining a reception beam, in the reception beam candidate group, for receiving a signal.

A method for channel detection is performed by a wireless communication device including n antenna panels, wherein n is an integer greater than or equal to 2. The method includes: obtaining channel detection control information of each of k antenna panels among the n antenna panels; and respectively controlling the k antenna panels to perform the channel detection through the channel detection control information of each of the k antenna panels.

Systems and methods for selectively enabling antenna selection at a wireless device for uplink sounding reference signal transmission in a Time Division Duplexing (TDD) wireless communication system are disclosed. In some embodiments, a method of operation of a network node comprises making a determination as to whether to enable or disable antenna selection at a wireless device for transmission of uplink sounding reference signals based on: an estimated speed of movement of the wireless device; both the estimated speed and a Signal to Interference plus Noise Ratio (SINR) for one or more downlink channels to the wireless device; or the estimated speed, the SINR for the one or more downlink channels, and a rank used for downlink transmission to the wireless device. The method further comprises sending, to the wireless device, an indication that indicates whether the wireless device is to enable or disable antenna selection.