A transmitting device and a receiving device, which can carry out measurements, are disclosed together with a method for estimating an angle of departure of radio waves. The receiving device sets an equal phase of each antenna in a uniform circular array antenna, receives a transmitted millimeter wave signal, and calculates angle of arrival (AOD) of the millimeter wave signal, thus simplifying the steps for estimating AOD.

An antenna array system comprises a plurality of antenna elements arranged in an antenna array in a geometric shape. The antenna array system further includes a first sub-array that forms an interior of the antenna array and a second sub-array that forms an exterior of the antenna array. In addition, the first sub-array is a subset of the second sub-array. A number of antenna elements in the first sub-array is greater than a number of antenna elements in the second sub-array. The antenna array system determines an exact satellite location of a satellite within a solid angle of ambiguity using a first virtual pattern and a second virtual pattern.

Systems, methods, and apparatus receive a signal from a first wireless device through a first antenna, of a plurality of antennas, the signal including a first segment and a second segment. Responsive to detecting a change in the signal from the first segment to the second segment, embodiments traverse the plurality of antennas to receive the second segment through each of the plurality of antennas. Embodiments determine a plurality of phase samples, each associated with the second segment received through one of the plurality of antennas. Embodiment then use the plurality of phase samples to calculate direction data associated with the first wireless device.

Systems, methods, and apparatus receive a signal from a first wireless device through a first antenna, of a plurality of antennas, the signal including a first segment and a second segment. Responsive to detecting a change in the signal from the first segment to the second segment, embodiments traverse the plurality of antennas to receive the second segment through each of the plurality of antennas. Embodiments determine a plurality of phase samples, each associated with the second segment received through one of the plurality of antennas. Embodiment then use the plurality of phase samples to calculate direction data associated with the first wireless device.

An antenna array system comprises a plurality of antenna elements arranged in an antenna array in a geometric shape. The antenna array system further includes a first sub-array that forms an interior of the antenna array and a second sub-array that forms an exterior of the antenna array. In addition, the first sub-array is a subset of the second sub-array. A number of antenna elements in the first sub-array is greater than a number of antenna elements in the second sub-array. The antenna array system determines an exact satellite location of a satellite within a solid angle of ambiguity using a first virtual pattern and a second virtual pattern.

A method for direction finding of at least one incoming signal with a direction finding antenna unit is described, the direction finding antenna unit comprising at least an antenna system having several antenna elements. One antenna element is used as a reference antenna element. A subset of the several antenna elements is selected when the reference antenna element detects the incoming signal, the selected subset ensuring the best signal-to-noise ratio of all possible subsets of the several antenna elements with respect to the reference antenna element. Phase difference and orientation of the incoming signal are related to the reference antenna element. Further, a direction finding antenna unit is described.

The invention relates to a method and a device for estimating an angle of arrival of an incident radio signal in relation to a predetermined reference direction by using a set of N receiving paths comprising at least one directional antenna pointing in N different receiving directions, wherein only one sub-set of at least two receiving paths with adjacent antenna directions in said set of antennas delivers a measured power at reception.

The device comprises modules suitable for: determining a number of receiving paths delivering a measured power forming said sub-set, and a reference index corresponding to a first receiving path in a direction in which extends the set of antenna directions of said sub-set; selecting the measured powers and obtaining a value to attribute to the non-measured powers to form a completed power signal; by applying a discrete Fourier transform (DFT) to said completed power signal, calculating at least one transformed value among the transformed values corresponding to a first, second, and third frequency line of the DFT; and, using the transformed value(s), applying an estimator of the angle of arrival, depending on the reference index.

The present disclosure relates to identifying azimuth error and determining an azimuth of an antenna installed in a cell of a cellular network. In a preferred embodiment, the network entity receives a plurality of transmission parameters basis to which the network entity identifies a target cell. The network entity further divides angular region of the cell serving the target cell into a plurality of cones out of which a target cone is identified by the network entity. The network entity then performs first iteration yielding a first azimuth, and in an event of an azimuth error in the first azimuth, the network entity performs second iteration yielding a second azimuth. The present disclosure also encompasses predicting an optimum azimuth of said antenna in an event of azimuth error/s in the first azimuth and the second azimuth.

Systems, methods, and apparatus receive a signal from a first wireless device through a first antenna, of a plurality of antennas, the signal including a first segment and a second segment. Responsive to detecting a change in the signal from the first segment to the second segment, embodiments traverse the plurality of antennas to receive the second segment through each of the plurality of antennas. Embodiments determine a plurality of phase samples, each associated with the second segment received through one of the plurality of antennas. Embodiment then use the plurality of phase samples to calculate direction data associated with the first wireless device.

Systems, methods, and apparatus receive a signal from a first wireless device through a first antenna, of a plurality of antennas, the signal including a first segment and a second segment. Responsive to detecting a change in the signal from the first segment to the second segment, embodiments traverse the plurality of antennas to receive the second segment through each of the plurality of antennas. Embodiments determine a plurality of phase samples, each associated with the second segment received through one of the plurality of antennas. Embodiment then use the plurality of phase samples to calculate direction data associated with the first wireless device.