This application provides a full-duplex communication method and an apparatus. The method includes: when sending a first signal to a first device by using a first transmit sector, receiving, by a third device by using a first receive sector, a second signal sent by a second device. A coverage area of the third device in a receiving direction may be divided into at least one receive sector, the at least one receive sector forms one receive sector group, and the third device may receive the second signal by using the first receive sector that is in the receive sector group and that is different from the first transmit sector. In this way, the third device can simultaneously receive a signal and send a signal by using different sectors, to implement full-duplex transmission, and reduce mutual interference between signal sending and signal receiving, thereby improving communication quality of the full-duplex transmission.

This application provides a full-duplex communication method and an apparatus. The method includes: when sending a first signal to a first device by using a first transmit sector, receiving, by a third device by using a first receive sector, a second signal sent by a second device. A coverage area of the third device in a receiving direction may be divided into at least one receive sector, the at least one receive sector forms one receive sector group, and the third device may receive the second signal by using the first receive sector that is in the receive sector group and that is different from the first transmit sector. In this way, the third device can simultaneously receive a signal and send a signal by using different sectors, to implement full-duplex transmission, and reduce mutual interference between signal sending and signal receiving, thereby improving communication quality of the full-duplex transmission.

A system includes a base band unit pooling component that determines, via a base band unit pool of base station devices, respective uplink channel estimates of an uplink channel wirelessly coupling, using frequency division duplexing via respective modular antenna elements, a user equipment to the base band unit pool. A downlink channel estimation component of the system derives, based on the respective uplink channel estimates, a downlink channel estimate of a downlink channel wirelessly coupling, using the frequency division duplexing via a portion of the respective modular antenna elements corresponding to a base station device of the base band unit pool, the base station device to the user equipment. In turn, the system generates, using the downlink channel estimate, a group of downlink sector beams to be transmitted to the user equipment using the downlink channel via the portion of the respective modular antenna elements.

A method for detecting swapped antenna sectors in a cellular communications network. For each of one or more cells in the cellular communications network, an azimuth is estimated for each of two or more antenna sectors in the cell using a plurality of geo-located signal measurements for each antenna sector and a machine-learning algorithm. The estimated azimuths are compared to azimuths associated with the corresponding antenna sectors in a stored representation of the cellular communications network, to detect swapped antenna sectors in the cell.

A method for detecting swapped antenna sectors in a cellular communications network. For each of one or more cells in the cellular communications network, an azimuth is estimated for each of two or more antenna sectors in the cell using a plurality of geo-located signal measurements for each antenna sector and a machine-learning algorithm. The estimated azimuths are compared to azimuths associated with the corresponding antenna sectors in a stored representation of the cellular communications network, to detect swapped antenna sectors in the cell.

Methods and apparatus for multi-destination wireless transmissions as disclosed. An example multi-destination transmitter includes a direction determiner to determine directions for wireless transmission of data to destination devices and a transmission handler to: select a subset of the destination devices that are associated with different ones of a plurality of antennas as indicated by the directions determined by the direction determiner; and transmit the data to the subset of the destination devices via the plurality of antennas.

Methods and apparatus for multi-destination wireless transmissions as disclosed. An example multi-destination transmitter includes a direction determiner to determine directions for wireless transmission of data to destination devices and a transmission handler to: select a subset of the destination devices that are associated with different ones of a plurality of antennas as indicated by the directions determined by the direction determiner; and transmit the data to the subset of the destination devices via the plurality of antennas.

A reception-side apparatus includes: M receive antennas; and a processor configured to execute a first process of acquiring a first signal received from a first transmission-side apparatus from among signals simultaneously received from the N transmission-side apparatuses by receive diversity processing, and acquiring first data by demodulating and decoding the first signal. In the case of N>M, the processor acquires, for each of all patterns of a combination of a first signal, second signals from M−1 transmission-side apparatuses which are to be cancelled by receive diversity processing and third signals from N−M transmission-side apparatuses which are not to be cancelled by the receive diversity processing, a power ratio of power of the first signal relative to total power of the second and third signals based on a predetermined weight and a channel estimate of each signal, and selects a combination with the largest power ratio from among all the patterns.

A reception-side apparatus includes: M receive antennas; and a processor configured to execute a first process of acquiring a first signal received from a first transmission-side apparatus from among signals simultaneously received from the N transmission-side apparatuses by receive diversity processing, and acquiring first data by demodulating and decoding the first signal. In the case of N>M, the processor acquires, for each of all patterns of a combination of a first signal, second signals from M−1 transmission-side apparatuses which are to be cancelled by receive diversity processing and third signals from N−M transmission-side apparatuses which are not to be cancelled by the receive diversity processing, a power ratio of power of the first signal relative to total power of the second and third signals based on a predetermined weight and a channel estimate of each signal, and selects a combination with the largest power ratio from among all the patterns.

According to certain embodiments, a method is disclosed for use in a network node. The method comprises determining at least one parameter N per carrier frequency. The parameter N indicates a maximum number of beams to be used by a wireless device for signal measurements in a cell. The method comprises communicating the parameter(s) N to the wireless device.