Abstract: The present application discloses a quantum circuit optimization method, a device, equipment and a storage medium, which are applied to the technical field of quantum computing and include the steps of: obtaining a quantum circuit to be optimized; determining an optimization unit in the quantum circuit to be optimized, and replacing the optimization unit with a comprehensive expression to obtain a first optimized quantum circuit; the optimization unit corresponding to at least two-bit Pauli operators; replacing the comprehensive expression with an equivalent circuit according to a preset standard and circuits before and after the comprehensive expression to form a second optimized quantum circuit; the second optimized quantum circuit including an eliminable quantum gate; and performing gate elimination on the second optimized quantum circuit to obtain an optimized quantum circuit.

Abstract: A small cell interference coordination method and wireless communication device includes obtaining mobile information of at least one of the small cells. Relative movement between the small cells is determined according to at least the movement information. A Doppler frequency shift of a signal between small cells is estimated according to the relative movement. An interference alignment policy between small cells is implemented according to the estimated Doppler frequency shift.

Abstract: Provided are an apparatus and method for a hybrid multiple access wireless communication system. The apparatus comprises: a parameter acquisition unit configured to acquire a relevant parameter of a hybrid multiple access wireless communication system; and a sub-carrier allocation unit configured to use the relevant parameter to allocate sub-carriers to each user equipment with the purpose of optimizing overall communication quality of the hybrid multiple access wireless communication system.

Abstract: A 5G-signal-based DOA fingerprint-based positioning method includes the following steps: dividing an initial area into a number of micro-cells, and estimating angle information of reference points in the divided micro-cells; storing the angle information of the reference point of each micro-cell and position information of the each micro-cell in a fingerprint database, and updating the angle information in the fingerprint database at regular intervals; wherein when there is a target in the initial area, estimating angle information of the target; matching the angle information of the target with the angle information in the fingerprint database to determine a micro-cell where the target is located to obtain position information of the target, so as to locate the target.

Abstract: An electronic device for wireless communication with two groups of communication devices, the electronic device comprising a processing circuit, wherein the processing circuit is configured to: acquire a first waveform parameter related to a first group of communication devices, wherein the first waveform parameter is related to the form of a signal waveform for communications by the first group of communication devices; and notify a second group of communication devices of the first waveform parameter such that the second group of communication devices can determine, based on the first waveform parameter, a precoding matrix for communications by the second group of communication devices. Further disclosed are a wireless communication method, a base station, and a second wireless communication device from among one group of communication devices.

Abstract: A 5G-signal-based DOA fingerprint-based positioning method includes the following steps: dividing an initial area into a number of micro-cells, and estimating angle information of reference points in the divided micro-cells; storing the angle information of the reference point of each micro-cell and position information of the each micro-cell in a fingerprint database, and updating the angle information in the fingerprint database at regular intervals; wherein when there is a target in the initial area, estimating angle information of the target; matching the angle information of the target with the angle information in the fingerprint database to determine a micro-cell where the target is located to obtain position information of the target, so as to locate the target.

Abstract: This disclosure relates to an electronic device for wireless communications, and a wireless communication method. The electronic device comprises one or more processors, wherein each processor is configured to respectively conduct space-domain filtering on received signals of a plurality of antennas, respectively; estimate the frequency shift of corresponding received signals based on the signals, on which space-domain filtering is conducted, of various antennas; estimate, according to the estimated frequency shift and a parameter of the space-domain filtering, a Doppler frequency shift generated by the relative motion between transceiving ends of the received signals and a carrier frequency offset generated by frequency inconsistency of the transceiving ends; and conduct frequency preprocessing on sent signals of the antennas according to the estimated Doppler frequency shift, and/or control to feed back information related to the estimated Doppler frequency shift to a signal sending end.

Abstract: Provided are a control apparatus, device and method for a wireless communication system, a signal processing apparatus and method for a mobile terminal, a mobile terminal and a wireless communication system. The control apparatus comprises: a control circuit, wherein the control circuit is configured to make a plurality of the wireless communication devices send, to a mobile terminal, a plurality of synchronous sequence signals which are different from each other. According to the control apparatus, device and method, the signal processing apparatus and method, the mobile terminal and the wireless communication system in the present disclosure, the influence of a large-carrier frequency offset on the performance of a timing synchronization system can be effectively suppressed and eliminated.

Abstract: Provided are an electronic device and method for wireless communication. The electronic device comprises: a processing circuit configured to: based on the reception of a first signal sent by a remote wireless communication device, selecting one or more candidate wave beams from a pre-determined group of wave beams; and acquiring an optimal wave beam pair based on the one or more candidate wave beams, wherein the optimal wave beam pair is the wave beam pair enabling a channel gain to be the maximum.

Abstract: A wireless communication method and device. The method includes receiving location information from one or more terminals served by a first base station, and identifying, according to the received location information, a first terminal located within the coverage range of the first base station and proximate to the coverage range of at least one second base station, the first terminal served by the first base station being capable of receiving an interference signal from the at least one second base station, and a second terminal served by a corresponding second base station and distant from the coverage range of the first base station existing within the coverage range of each of the at least one second base station. There is a cooperating with the at least one second base station to determine a downlink transmission mode for the first terminal.

Abstract: A small cell interference coordination method and wireless communication device. The method includes: obtaining mobile information of at least one of the small cells; determining relative movement between the small cells according to at least the movement information; estimating a Doppler frequency shift of a signal between small cells according to the relative movement; and implementing an interference alignment policy between small cells according to the estimated Doppler frequency shift.

Abstract: This disclosure relates to an electronic device for wireless communications, and a wireless communication method. The electronic device comprises one or more processors, wherein each processor is configured to respectively conduct space-domain filtering on received signals of a plurality of antennas, respectively; estimate the frequency shift of corresponding received signals based on the signals, on which space-domain filtering is conducted, of various antennas; estimate, according to the estimated frequency shift and a parameter of the space-domain filtering, a Doppler frequency shift generated by the relative motion between transceiving ends of the received signals and a carrier frequency offset generated by frequency inconsistency of the transceiving ends; and conduct frequency preprocessing on sent signals of the antennas according to the estimated Doppler frequency shift, and/or control to feed back information related to the estimated Doppler frequency shift to a signal sending end.

Abstract: This disclosure relates to an electronic device for wireless communications, and a wireless communication method. The electronic device comprises one or more processors, wherein each processor is configured to respectively conduct space-domain filtering on received signals of a plurality of antennas, respectively; estimate the frequency shift of corresponding received signals based on the signals, on which space-domain filtering is conducted, of various antennas; estimate, according to the estimated frequency shift and a parameter of the space-domain filtering, a Doppler frequency shift generated by the relative motion between transceiving ends of the received signals and a carrier frequency offset generated by frequency inconsistency of the transceiving ends; and conduct frequency preprocessing on sent signals of the antennas according to the estimated Doppler frequency shift, and/or control to feed back information related to the estimated Doppler frequency shift to a signal sending end.

Abstract: The disclosure relates to an electronic device, radio communication apparatus, and radio communication method. In one embodiment, an electronic device utilized at base station side comprises a processing circuit configured to: acquire information of an arrival time difference of diversity signals transmitted from two or more base stations to a mobile terminal; determine, on the basis of the information, a precoding matrix utilized in diversity signal transmission to reduce an impact of the arrival time difference on a diversity gain; and utilize the determined precoding matrix to perform precoding on a signal to be transmitted.

Abstract: Provided are an apparatus and method for a sending end and a receiving end of a wireless communication system, and a soft information estimator. The apparatus for the sending end of the wireless communication system comprises: an interleave division multiple access unit configured to perform interleave processing on information to be sent; and a filter bank multi-carrier unit configured to use a specific sub-carrier chosen in advance to transmit the interleaved information in a parallel manner.

Abstract: The present disclosure provides a device and method for wireless communication and a communication terminal. The device comprises: a spatial filtering unit, configured to perform spatial filtering on a signal received by each antenna in a receiving antenna array, and combine filtered signals, wherein all coefficients adopted by spatial filtering are configured to reduce an equivalent channel time-variant degree of a combined signal.

Abstract: Provided is a wireless communication apparatus for a non-orthogonal multiple access communication system. The apparatus comprises: a power adjustment unit which is used, for at least some of user equipment included in the communication system, dynamically adjusting the sending power of each of the at least some of the user equipment for each sub-carrier according to channel state information about the communication system, in order that the at least some of the user equipment perform uplink data transmission on corresponding sub-carriers with the adjusted sending power. According to the disclosed apparatus, method and system, at least one of the following technical benefits could be obtained: increasing the channel capacity of the communication system; reducing the bit error rate during the communication; and reducing the interference between corresponding user equipment in the communication system.

Abstract: An electronic device for wireless communication with two groups of communication devices, the electronic device comprising a processing circuit, wherein the processing circuit is configured to: acquire a first waveform parameter related to a first group of communication devices, wherein the first waveform parameter is related to the form of a signal waveform for communications by the first group of communication devices; and notify a second group of communication devices of the first waveform parameter such that the second group of communication devices can determine, based on the first waveform parameter, a precoding matrix for communications by the second group of communication devices. Further disclosed are a wireless communication method, a base station, and a second wireless communication device from among one group of communication devices.

Abstract: Provided are an electronic device and method for wireless communication. The electronic device comprises: a processing circuit configured to: based on the reception of a first signal sent by a remote wireless communication device, selecting one or more candidate wave beams from a pre-determined group of wave beams; and acquiring an optimal wave beam pair based on the one or more candidate wave beams, wherein the optimal wave beam pair is the wave beam pair enabling a channel gain to be the maximum.

Abstract: A small cell interference coordination method and wireless communication device. The method includes: obtaining mobile information of at least one of the small cells; determining relative movement between the small cells according to at least the movement information; estimating a Doppler frequency shift of a signal between small cells according to the relative movement; and implementing an interference alignment policy between small cells according to the estimated Doppler frequency shift.