The present invention relates to a test method implemented by an item of equipment (10) comprising at least two radio-communication devices (12, 13) for testing at least one transmitter and receiver of said radio-communication devices. According to the invention, it comprises the following steps implemented for testing a transmitter (120) to be tested of a transmitting radio-communication device (12) and/or a receiver (131) to be tested of a receiving radio-communication device (13) of the same item of equipment (10), a step (E100) of transmitting a test signal in a transmission channel of said transmitter (120) of said transmitting radio-communication device (12), and a step (E200) of detection, in a reception channel corresponding to said transmission channel of said transmitter (120), of the test signal transmitted.

The present invention relates to a test method implemented by an item of equipment (10) comprising at least two radio-communication devices (12, 13) for testing at least one transmitter and receiver of said radio-communication devices. According to the invention, it comprises the following steps implemented for testing a transmitter (120) to be tested of a transmitting radio-communication device (12) and/or a receiver (131) to be tested of a receiving radio-communication device (13) of the same item of equipment (10), a step (E100) of transmitting a test signal in a transmission channel of said transmitter (120) of said transmitting radio-communication device (12), and a step (E200) of detection, in a reception channel corresponding to said transmission channel of said transmitter (120), of the test signal transmitted.

The terminal device can generate a monophonic signal of a specified frequency, and can transmit the monophonic signal by using a specified receive antenna or transmit antenna of the terminal device. The terminal device has a function of transmitting the monophonic signal of the designated frequency by using any specified antenna. Therefore, a measurement system for an antenna complex number pattern of the terminal device can accurately measure a complex number pattern of each antenna of the terminal device in a manner in which the terminal device transmits the monophonic signal of the specified frequency by using each receive antenna or transmit antenna. The measurement system can further obtain an accurate measurement result when a MIMO OTA performance test is performed on the terminal device according to the complex number patterns of all the antennas of the terminal device.

The terminal device can generate a monophonic signal of a specified frequency, and can transmit the monophonic signal by using a specified receive antenna or transmit antenna of the terminal device. The terminal device has a function of transmitting the monophonic signal of the designated frequency by using any specified antenna. Therefore, a measurement system for an antenna complex number pattern of the terminal device can accurately measure a complex number pattern of each antenna of the terminal device in a manner in which the terminal device transmits the monophonic signal of the specified frequency by using each receive antenna or transmit antenna. The measurement system can further obtain an accurate measurement result when a MIMO OTA performance test is performed on the terminal device according to the complex number patterns of all the antennas of the terminal device.

A testing device may receive, via a receiving port of a radio frequency (RF) frontend of the testing device, a downlink pilot signal, and may determine a phase associated with the downlink pilot signal. The testing device may transmit, via a transmitting port of the RF frontend of the testing device, an uplink pilot signal. The testing device may receive, after transmitting the uplink pilot signal, the uplink pilot signal via the receiving port of the RF frontend of the testing device. The testing device may determine, after receiving the uplink pilot signal, a phase associated with the uplink pilot signal. The testing device may adjust, based on a phase difference between the phase of the downlink pilot signal and the phase of the uplink pilot signal, one or more transmission settings of the testing device.

An electronic device discussed herein may include an imbalance compensation logic that determines an imbalance parameter based at least in part on received quadrature signals from quadrature generation circuitry. The imbalance parameter may be determined using noise received by a receiver as an input radio frequency signal. By using the systems and methods described herein, an accuracy of detecting the imbalance may improve. Furthermore, by including the imbalance compensation logic internal to the electronic device, the imbalance compensation logic may provide continued imbalance detection over a lifespan of the electronic device.

An electronic device discussed herein may include an imbalance compensation logic that determines an imbalance parameter based at least in part on received quadrature signals from quadrature generation circuitry. The imbalance parameter may be determined using noise received by a receiver as an input radio frequency signal. By using the systems and methods described herein, an accuracy of detecting the imbalance may improve. Furthermore, by including the imbalance compensation logic internal to the electronic device, the imbalance compensation logic may provide continued imbalance detection over a lifespan of the electronic device.

A testing device may receive, via a receiving port of a radio frequency (RF) frontend of the testing device, a downlink pilot signal, and may determine a phase associated with the downlink pilot signal. The testing device may transmit, via a transmitting port of the RF frontend of the testing device, an uplink pilot signal. The testing device may receive, after transmitting the uplink pilot signal, the uplink pilot signal via the receiving port of the RF frontend of the testing device. The testing device may determine, after receiving the uplink pilot signal, a phase associated with the uplink pilot signal. The testing device may adjust, based on a phase difference between the phase of the downlink pilot signal and the phase of the uplink pilot signal, one or more transmission settings of the testing device.

A location of at least one PIM source within an antenna array assembly is determined by applying an excitation waveform to a connection port, setting a multi-element phase shifter to a first state to apply a respective phase shift to respective paths, and making a first measurement of at least the phase of a PIM product emitted from the connection port. The multi-element phase shifter is then set to a succession of further states and further such measurements are made for each of the further states. From the first and further measurements a dependence is determined of at least the phase of the PIM product on the state of the multi-element phase shifter. The determined dependence is compared with a plurality of predetermined dependences, each predetermined dependence being for a PIM source located in a respective path between the multi-element phase shifter and a respective sub-array to determine the location within the antenna array assembly of the at least one PIM source.

An apparatus, method and work product is disclosed. The method comprises measuring plural transmit signals and corresponding receive signals and determining, using a model describing a relation between each of the plural transmit signals and a respective passive intermodulation signal, a standardized passive intermodulation signal as one or more nth order intermodulation products for a standardized transmit signal consisting of two tones each of a power of substantially 20 Watts. The method may also comprise identifying in the model one or more n.sup.th order cross-intermodulation products resulting from three or more transmit signals having different respective carrier frequencies. Responsive to the identification, the method may comprise adapting the standardized two-tone passive intermodulation signal by determining an offset for producing an adapted two-tone standardized passive intermodulation signal, n is an odd integer greater than two.