A satellite receiver includes: demultiplexing units each demultiplexing, into subchannel signals of a predetermined band, a digital reception signal obtained by converting a calibration signal received by a corresponding one of receiving antenna elements into a digital signal; excitation coefficient multiplication units multiplying the subchannel signals by an excitation coefficient; a complex adder adding the subchannel signals multiplied by the excitation coefficient together for each subchannel signal of the same band; a correlation detection unit calculating, with the use of one demultiplexing unit as a reference demultiplexing unit, a cross-correlation value for each subchannel signal output from each demultiplexing unit different from the reference demultiplexing unit with respect to a subchannel signal of a same band output from the reference demultiplexing unit; and an excitation coefficient generation unit generating a corrected excitation coefficient based on a cross-correlation value and an excitation coefficient created in advance.

Embodiments of systems and methods for combining downlink signals representative of a communication signal are provided herein. An example method comprises receiving samples of the downlink signals from multiple antenna feeds; generating first symbols for a first signal and second symbols for a second signal based on performing timing recovery operations on the first signal and the second signal, respectively; generating offset information based on performing a correlator operation on the first and second symbols; and combining the first and second signals based on performing a weighted combiner operation. At least one of the first timing recovery operation, the second timing recovery operation, the correlator operation, and the combing are performed in a plurality of processing blocks in one or more processors, wherein the first and second processing block operate in parallel.

Methods, systems, and devices for wireless communications are described. In a wireless communications system, a user equipment (UE) may be configured to use intra-message antenna selection diversity (ASD). The UE may transmit a first portion of a scheduled message within a time interval using a first antenna element of the UE based on an intra-message antenna diversity configuration. The intra-message antenna diversity configuration may indicate a set of antennas available for transmission of the scheduled message. In some cases, the UE may transmit, within the same time interval, at least a portion of the scheduled message using at least a second antenna element of the UE that is different from the first antenna element. In some cases, a receiving UE may decode the first portion and the second portion of the scheduled message based on the intra-message antenna diversity configuration.

A variable inclination continuous transverse stub (VICTS) antenna system includes a support structure, a plurality of VICTS antenna elements attached to the support structure, and a controller operatively coupled to the plurality of VICTS antenna elements, the controller configured to coherently combine signals through each of the plurality of VICTS antenna elements.

There is provided an antenna arrangement for a radio transceiver device for simultaneous use of two polarization directions. The antenna arrangement comprises at least two baseband chains. The antenna arrangement further comprises a first set of antenna elements of a first polarization direction, and a second set of antenna elements of a second polarization direction. The antenna arrangement comprises an analog distribution network operatively connecting the at least two baseband chains to both sets of antenna elements. All of the baseband chains are operatively connected to each respective antenna element of the first set and to each respective antenna element of the second set via the analog distribution network.

The disclosure provides systems, devices, and methods for distributed relay multiple-in multiple-out (DR-MIMO) communications. The system can have a master transmit node that transmits a message to a master receive node via one or more relay nodes. The relay nodes can each relay a portion of the message, performing a time or frequency shift along with the relay. The multiple relay nodes can function as a distributed antenna array for one or both of the master transmit node and the master receive node, forming a transmit group and/or a receive group. The transmit group and the receive group can thus provide MIMO capabilities to the master transmit node and the master receive node. The master transmit node can transmit multiple spatial streams through distributed relay nodes. The master receive node can receive multiple data streams from distributed relay nodes and perform MIMO detection.

The embodiments of the present invention disclose a method and an apparatus of error re-correction for data of a radio link, and the method includes: when data of a plurality of radio links of a same user equipment received by a base station controller are all incorrect, the base station controller performing bitwise comparison processing on data of two radio links therein, obtaining a difference bit position sequence of the data of the two radio links; performing incorrect route segmentation processing on the data of the two radio link according to the difference bit position sequence, obtaining a plurality of incorrect route groups; performing cross substitution processing on incorrect route groups in the data of the two radio links by groups, and performing check processing on obtained data of a new radio link, until obtaining data of a radio link that are checked successfully.

A receiver and a detecting method thereof are provided. The receiver includes a plurality of antennas receiving a transmitted signal through multiple paths; and an equalizer collecting a plurality of sample signals by reflecting signals received in other antennas in the signals received in the plurality of antennas, and detecting a symbol of the transmitted signal by combining the plurality of sample signals that are collected with each other.

A wireless communication device includes a plurality of antennas, transmission circuits, reception circuits, and a plurality of connecting units that connect the transmission circuits and the reception circuits associated with the respective antennas, and a processor. The processor executes outputting, at timing allowed for signal transmission from the antennas, first calibration signals; calculating, by using the first calibration signals having passed through the transmission circuits, a first correction value that corrects a difference between the transmission characteristics of the transmission circuits; outputting, at the timing allowed for the signal transmission from the antennas, a second calibration signal; and calculating, by using the second calibration signal having passed through the reception circuits, a second correction value that corrects a difference between the transmission characteristics of the reception circuits.

A signal processing method and a related device are provided. The signal processing method includes: determining that there are N directions for received signals corresponding to a same signal source; configuring beam directions of an antenna as the N directions; estimating delays of the N received signals received by using the antenna, and separately performing, by using the estimated delays of the N received signals, delay compensation on the N received signals to obtain N received signals obtained after delay compensation, where the N received signals are in a one-to-one correspondence with the N directions, and N is an integer greater than 1; and performing combining processing on the N received signals obtained after delay compensation. The technical solutions in embodiments of the present invention help increase a signal reception gain in a multipath scenario.