When transmitting signals from a plurality of base stations (broadcasting stations), the base stations include at least a first base station having a first antenna with a first polarization and a second base station having a second antenna with a second polarization that is different from the first polarization. Then, when the first base station transmits a signal from the first antenna having the first polarization, the second base station transmits the same signal as the first antenna of the first base station from a second antenna having the second polarization, at the same time.

An electronic device includes a multiple input, multiple output (MIMO) antenna array comprising a plurality of antenna elements configured for MIMO communication across a network. One or more sensors detect a triggering event altering a radiation correlation pattern between at least two antenna elements of the plurality of antenna elements. One or more processors then select, in response to the one or more sensors detecting the triggering event, a quantity of antenna elements from the plurality of antenna elements available for engagement in the MIMO communication across the network as a function of the radiation correlation pattern.

The present disclosure relates to an antenna arrangement and a method for radio transmission. The antenna arrangement comprises a pre-coder (310) connected to an antenna array (320). The antenna array (320) comprises a number N of antenna elements a.sub.i (321), i=1, 2, . . . , N, each antenna element a.sub.i being configured to receive a respective transmit signal component TX.sub.i from the pre-coder (310). The pre-coder (310) is configured to receive a number M<N of independent data streams s.sub.j, j=1, 2, . . . , M, and to generate the N transmit signal components, wherein the generating comprises suppressing a correlation between any two transmit signal components TX.sub.i1 and TX.sub.i2 received by antenna elements a.sub.i1 and a.sub.i2 arranged adjacently in the antenna array (320).

An objective of the application is to provide a method and apparatus for transmitting control signals based on weighted aggregation. Specifically, the method comprise: determining aggregation level weight vectors corresponding to control signals to be transmitted by multiple antenna elements corresponding to the common control channel port, and transmitting the control signals through the multiple antenna elements based on the aggregation level weight vectors. Compared with the prior art, the present application implements enhancement of the common control channel coverage in the 3D-MIND system, and solves the problem of coverage holes in 3D-MIMO due to the introduction of a 2D planar array; moreover, the antenna array gains of the present application are more uniformly distributed in the whole EOD (elevation angle of departure) span, and the gains are significant.

A device and method for wireless communications. The device includes: an information acquisition unit, configured to acquire channel information about a transmission object and a non-transmission object for wireless communications, wherein the transmission of the transmission object is controlled by the device and transmission of the non-transmission object is not controlled by the device; and an interference reducing unit, configured to reduce interference with the non-transmission object based on the channel information about the transmission object and the non-transmission object.

Embodiments of the present disclosure describe methods and apparatuses for group based beam reporting and channel state information reference signal configuration in new radio systems.

A simple block coding arrangement is created with symbols transmitted over a plurality of transmit channels, in connection with coding that comprises only simple arithmetic operations, such as negation and conjugation. The diversity created by the transmitter utilizes space diversity and either time or frequency diversity. Space diversity is effected by redundantly transmitting over a plurality of antennas, time diversity is effected by redundantly transmitting at different times, and frequency diversity is effected by redundantly transmitting at different frequencies: Illustratively, using two transmit antennas and a single receive antenna, one of the disclosed embodiments provides the same diversity gain as the maximal-ratio receiver combining (MRRC) scheme with one transmit antenna and two receive antennas. The principles of this invention are applicable to arrangements with more than two antennas, and an illustrative embodiment is disclosed using the same space block code with two transmit and two receive antennas.

A receive only smart antenna with a command pointing option for communicating with geostationary satellites that autonomously detects the directions from which desired signal are received, and steer the multiple beams accordingly. An array feed is used to illuminate a parabolic reflector. Each feed element of the receive only smart antenna is associated with a unique beam pointing direction. As a receiver is switched to different feed elements, the far-field beam is scanned, making it possible to track a geostationary satellite in a slightly inclined orbit. This eliminates the need for mechanical tracking and maintains high antenna gain in the direction of the geostationary satellite. The receive only smart antenna also features capabilities to form multiple simultaneous beams supporting operations of multiple geo-satellites in closely spaced slightly inclined orbits. The designs can support orthogonal beams for enhanced bandwidth capacity via multiple beams with excellent spatial isolation.

A method involving providing a phased array antenna system having M antenna element pairs, each antenna element pair including a vertically oriented antenna element and a horizontally oriented antenna element; and with the phased array antenna system, generating n cross-polarized beams Bj, where j=1 . . . n, each cross-polarized beam Bj having either a +45° polarization or a −45° polarization, wherein generating each cross-polarized beam Bj involves: with the vertically polarized antenna elements of Nj antenna element pairs among the M antenna element pairs, generating a vertically polarized beam BVj; and with the horizontally polarized antenna elements of the Nj antenna element pairs, generating a horizontally polarized beam BHj, wherein the vertically polarized beam BVj and the horizontally polarized beam BHj are identically shaped and directed and wherein a superposition of the beams BVj and BHj produces the cross-polarized beam Bj.

A communication system is used to receive information from mobile sources. The system includes a plurality of antennas including multiple disjoint sets of multiple antennas configured to receive signals from the multiple mobile sources. At least a subset of the antennas have coverage areas that overlap with antennas in another set of the multiple disjoint sets of multiple antennas. The communication system also includes multiple receivers and multiple signal paths including one signal path for each set of multiple antennas. Each signal path is configured to provide outputs from a corresponding set of multiple antennas of the multiple disjoint sets of antennas to each of the multiple receivers. Each of the receivers choose to output information from one or more of the signal paths based on one or more characteristics of the signals received from the signal paths.