Interference may affect numerous communication systems. Thus, certain wireless communication systems that rely on combining transmitted repetitions of information may benefit from interference removal techniques, such as those that provide pre-combiner interference removal. A method can include receiving, from a transmitter, multiple repetitions of a same information sent from the transmitter over a channel. The method can also include removing interference from the respective repetitions. The method can further include combining the interference-removed repetitions. The method can additionally include performing channel estimation based on the combined interference-removed repetitions. The method can also include retrieving information corresponding to the same information sent in the multiple repetitions based on the channel estimation and combined interference-removed repetitions.

In a wireless communication system that performs non-linear pre-coding, degradation in transmission performance due to a feedback error is improved. The terminal device according to the present invention is a terminal device which receives radio signals that are space-multiplexed and on which non-linear pre-coding is performed, from a base station device including multiple antennas, the terminal device including: a channel state estimator 53 that estimates channel state information on a channel between the terminal device and the base station device; a terminal antenna module 51 that acquires a linear filter that is calculated in the base station device; and a channel equalization module 57 that performs channel equalization processing on the radio signals that are received at a first point in time, based on the channel state information at a second point in time that precedes the first point in time and on the linear filter.

A method of generating a transmission signal and a MIMO transmitter are disclosed. The method includes the steps of selecting a reference RE from an RE group including a plurality of resource elements (REs), generating a common precoder and a preprocessing filter to be shared by the plurality of the REs belonging to the RE group based on channel information of the reference RE, generating first signals corresponding to a precoding signal for each of the plurality of the REs in a manner of applying the common precoder to transmission data of each of the plurality of the REs and generating second signals in a manner of compensating first signals of REs except the reference RE among the plurality of the REs using channel information of each of plurality of the REs and the preprocessing filter.

Disclosed in the present application are a data processing method, and an electronic device and a storage medium. The method comprises: determining a covariance matrix of frequency-domain data which is received by a receiver; according to the covariance matrix, determining the number of branches which are processed in parallel by the receiver, and a spatial-domain filtering weight corresponding to each of the branches, wherein each of the branches corresponds to an antenna of at least one dimension; for each of the branches, according to the spatial-domain filtering weight corresponding to the branch, performing dimension reduction processing on data corresponding to the branch, so as to obtain data which has been subjected to dimension reduction and corresponds to the branch; and completing a processing operation for the frequency-domain data according to the data which has been subjected to dimension reduction and corresponds to each of the branches.

Disclosed is an analog equalizer network apparatus for wideband LOS-MIMO processing, the apparatus according to an embodiment including: a power distributor configured to distribute a first input signal received through a receiving antenna of a wideband LoS-MIMO network to a first path from a first input terminal to a first output terminal, and distribute a second input signal received through the receiving antenna to a second path from a second input terminal to the first output terminal; a first delay line located on the first path, and configured to delay the first input signal distributed to the first path; a second phase shifter located on the second path and configured to shift a phase of the second input signal distributed to the second path; and a power combiner configured to combine the delayed first input signal and the phase-shifted second input signal to perform channel separation.