Abstract: There is provided a mobile terminal test apparatus capable of efficiently performing a test by collectively processing control messages. There is included a control unit 6 that switches, as a mode for transmitting a control message to a mobile terminal 10, between an Automatic mode in which by a setting of a parameter by a user, the control message is transmitted to the mobile terminal 10 when it becomes necessary to transmit the control message to the mobile terminal 10, and a Manual mode in which change information on the parameter by the setting of the parameter by the user is held, and the control message corresponding to the held change information is transmitted to the mobile terminal 10 when a parameter application instruction is given by the user.

Abstract: To provide a mobile terminal test device capable of performing a test with high efficiency by automatically setting a Band filter. A mobile terminal test device includes a simulated base station unit 2 that performs 5G NR communication with a mobile terminal 10 in accordance with the 5G NR standard, a scenario processing unit 3 that reads a stored scenario and causes the simulated base station unit 2 to transmit notification information or execute a communication sequence with the mobile terminal 10, based on the scenario, and a control unit 6 that, when being connected to the mobile terminal 10, sets, as a Band filter, a band set as a communicable frequency band and transmits the set band to the mobile terminal 10.

Abstract: To provide a mobile terminal test device capable of efficiently performing a test by facilitating switching of parameter settings when switching a simulated base station. The mobile terminal test device includes a control unit 6 that, when a test is performed by simulating a plurality of base stations, retains a parameter common to the plurality of simulated base stations and a parameter individual for each of the plurality of simulated base stations, as the parameters for simulating the base stations, and sets the parameter common to the simulated base stations as it is, and switches and sets the parameter individual for each of the simulated base stations.

Abstract: There is provided a mobile terminal test apparatus capable of easily assigning and setting a frequency of each CC in the same frequency band of carrier aggregation. An operation unit 4 that accepts an operation input from a user, a display unit 5 that displays an image, and a control unit 6 that sets a contiguousness relationship of the plurality of component carriers and sets a predetermined premise parameter of the component carrier, and then automatically sets the parameter of the component carrier defined by a predetermined communication standard, by designating a type of the contiguousness relationship and a predetermined designation parameter are included.

Abstract: Included are a demodulation unit 20 that demodulates a received OFDM modulation signal to acquire a demodulated constellation signal, an ideal constellation signal generation unit 312 that generates an ideal constellation signal from the demodulated constellation signal, a data extraction unit 313 that extracts signal data included in some symbol sections including a known reference symbol, among all symbol sections, from the demodulated constellation signal and the ideal constellation signal, a phase error calculation unit 314 that calculates the phase error of the demodulated constellation signal for the ideal constellation signal, with respect to the extracted signal data, a phase error characteristics estimation unit 315 that estimates the frequency characteristics of the phase error, and a phase error correction unit 316 that corrects the phase error of the demodulated constellation signal, based on the frequency characteristics of the phase error.

Abstract: To provide a mobile terminal test device capable of performing a test with high efficiency by automatically setting a Band filter. A mobile terminal test device includes a simulated base station unit 2 that performs 5G NR communication with a mobile terminal 10 in accordance with the 5G NR standard, a scenario processing unit 3 that reads a stored scenario and causes the simulated base station unit 2 to transmit notification information or execute a communication sequence with the mobile terminal 10, based on the scenario, and a control unit 6 that, when being connected to the mobile terminal 10, sets, as a Band filter, a band set as a communicable frequency band and transmits the set band to the mobile terminal 10.

Abstract: Included are a demodulation unit 20 that demodulates a received OFDM modulation signal to acquire a demodulated constellation signal, an ideal constellation signal generation unit 312 that generates an ideal constellation signal from the demodulated constellation signal, a data extraction unit 313 that extracts signal data included in some symbol sections including a known reference symbol, among all symbol sections, from the demodulated constellation signal and the ideal constellation signal, a phase error calculation unit 314 that calculates the phase error of the demodulated constellation signal for the ideal constellation signal, with respect to the extracted signal data, a phase error characteristics estimation unit 315 that estimates the frequency characteristics of the phase error, and a phase error correction unit 316 that corrects the phase error of the demodulated constellation signal, based on the frequency characteristics of the phase error.

Abstract: Included are a demodulation unit that demodulates a received OFDM modulation signal to acquire a demodulated constellation signal, an ideal constellation signal generation unit that generates an ideal constellation signal from the demodulated constellation signal, a data extraction unit that extracts signal data corresponding to subcarriers included in a part of an intermediate frequency section among all frequency sections, from the demodulated constellation signal and the ideal constellation signal, a phase error calculation unit that calculates the phase error of the demodulated constellation signal for the ideal constellation signal, with respect to the extracted signal data, a phase error characteristic estimation unit that estimates the frequency characteristic of the phase error, and a phase error correction unit that corrects the phase error of the demodulated constellation signal, based on the frequency characteristic of the phase error.

Abstract: A receiving device 100 includes a reception unit 10, a delay signal generation unit 22, a difference calculation unit 23 that calculates a phase difference between the received signal and the delay signal, a variance calculation unit 24 that calculates a variance of the phase difference within a plurality of calculation sections while sliding a set of the plurality of calculation sections which are set corresponding to a cyclic prefix group assigned to a predetermined symbol group included in the received signal, together on the time axis, a symbol detecting unit 25 that detects a position of a symbol in the symbol group on the time axis, based on the position of the minimum peak of the variance on the time axis, and a synchronization timing signal generation unit 29 that generates a synchronization timing signal, based on information on the position of the symbol on the time axis.

Abstract: Included are a demodulation unit 20 that demodulates a received OFDM modulation signal to acquire a demodulated constellation signal, an ideal constellation signal generation unit 312 that generates an ideal constellation signal from the demodulated constellation signal, a data extraction unit 313 that extracts signal data corresponding to subcarriers included in a part of an intermediate frequency section among all frequency sections, from the demodulated constellation signal and the ideal constellation signal, a phase error calculation unit 314 that calculates the phase error of the demodulated constellation signal for the ideal constellation signal, with respect to the extracted signal data, a phase error characteristic estimation unit 315 that estimates the frequency characteristic of the phase error, and a phase error correction unit 316 that corrects the phase error of the demodulated constellation signal, based on the frequency characteristic of the phase error.

Abstract: A receiving device 100 includes a reception unit 10, a delay signal generation unit 22, a difference calculation unit 23 that calculates a phase difference between the received signal and the delay signal, a variance calculation unit 24 that calculates a variance of the phase difference within a plurality of calculation sections while sliding a set of the plurality of calculation sections which are set corresponding to a cyclic prefix group assigned to a predetermined symbol group included in the received signal, together on the time axis, a symbol detecting unit 25 that detects a position of a symbol in the symbol group on the time axis, based on the position of the minimum peak of the variance on the time axis, and a synchronization timing signal generation unit 29 that generates a synchronization timing signal, based on information on the position of the symbol on the time axis.