A method for adjusting beam gain in a radio network node. The method comprises: obtaining a channel estimate based on a reference signal transmitted by a target wireless device; applying a set of weights to the channel estimate to obtain a weighted channel estimate; and outputting the weighted channel estimate for use in determining beamforming weights to be applied to signals output to a plurality of antenna elements for transmission to the target wireless device, wherein the beamforming weights are determined as a function of the weighted channel estimate.

A wireless communication method and a wireless communication device. The method comprises: a sending side device generating a common sequence so as to send to a plurality of receiving side devices; each of the plurality of receiving side devices determining a first analogue weight parameter according to a receiving situation of the common sequence, and determining an antenna configuration for sending a pre-determined pilot frequency signal corresponding to the receiving side device according to the determined first analogue weight parameter so as to send the pre-determined pilot frequency signal to the sending side device; and the sending side device determining a second analogue weight parameter regarding the receiving side device according to a receiving situation of the pre-determined pilot frequency signal, and determining an antenna configuration for sending data regarding the receiving side device according to the determined second analogue weight parameter so as to send the data to the receiving side device.

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.

A transmission method for transmitting a first modulated signal and a second modulated signal in the same frequency at the same time. Each signal has been modulated according to a different modulation scheme. The transmission method applies precoding on both signals using a fixed precoding matrix, applies different power change to each signal, and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.

A user equipment (UE) determines a receive (RX) spatial filter for receiving both a first measurement resource and a second measurement resource. The RX spatial filter is determined based on a first spatial quasi-co-located (QCL) reference associated with the first measurement resource and a second spatial QCL reference associated with the second, measurement resource. The UE measures the first and second measurement resources with the determined Rx filter configuration.

A communication management resource implements an iterative process to derive settings for digital precoder W, analog precoder A, and decode function D with a bandwidth-limited fronthaul link between the application of digital precoder W and the application of analog precoder A. The iterative process includes: for a first instance of digital precoder W and decode function D, optimize an instance of the analog precoder A; and based on the optimized instance of the analog precoder A, optimize a second instance of the digital precoder W and the decode function D. In one implementation, for each iteration of multiple iterations, the communication management resource: i) optimizes an instance of the analog precoder A based on an instance of the digital precoder W and the decode function D, and ii) optimizes an instance of the digital precoder W and the decode function D based on the instance of the analog precoder A.

Embodiments of this application provide example information receiving methods and receiving apparatuses. One example information receiving method includes receiving, by a receiving apparatus, an index from a sending apparatus, wherein the index indicates precoding information used for a single codeword. The receiving apparatus can then determine, based on the index, the precoding information used for the single codeword.

A transmission method for transmitting a first modulated signal and a second modulated signal in the same frequency at the same time. Each signal has been modulated according to a different modulation scheme. The transmission method applies precoding on both signals using a fixed precoding matrix, applies different power change to each signal, and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.

Various embodiments disclosed herein provide for a base station device that can determine which layers should be mapped to codewords in a multi-layer, multi-antenna transmission. The base station device can transmit reference signals to a user equipment device, with each reference signal associated with a respective codeword to layer mapping combination, and the user equipment can send channel state information associated with each reference signal back to the base station device, and the base station device can rank each combination in terms of spectral efficiency or capacity and/or throughput. The base station device can inform the user equipment of the ranked combinations by sending a bit map with the ranked combinations to the user equipment device.

A wireless communication method and a wireless communication device. The method comprises: a sending side device generating a common sequence so as to send to a plurality of receiving side devices; each of the plurality of receiving side devices determining a first analogue weight parameter according to a receiving situation of the common sequence, and determining an antenna configuration for sending a pre-determined pilot frequency signal corresponding to the receiving side device according to the determined first analogue weight parameter so as to send the pre-determined pilot frequency signal to the sending side device; and the sending side device determining a second analogue weight parameter regarding the receiving side device according to a receiving situation of the pre-determined pilot frequency signal, and determining an antenna configuration for sending data regarding the receiving side device according to the determined second analogue weight parameter so as to send the data to the receiving side device.