Abstract: Embodiments of this application provide a beam configuration method and apparatus. The method includes: determining base station scheduling information rank, and determining a direction of arrival power spectrum; determining peak information based on the direction of arrival power spectrum; determining, based on the peak information, beam directions that meet power conditions; selecting, based on a preset filtering condition, at least one candidate beam direction from the beam directions that meet the power conditions; and determining a target beam direction of a terminal from the at least one candidate beam direction based on the base station scheduling information rank, a value of a channel quality indicator CQI, and the direction of arrival power spectrum. In this way, a beam configuration manner on a terminal side is more flexible, to meet requirements of different service scenarios, and improve stability of a communications link.

Abstract: A beam selection method includes determining, by a terminal, a first angular power spectrum of a low frequency channel transmitted between the terminal and an access network device, determining, by the terminal, a first high frequency beam scanning range based on the first angular power spectrum, and scanning, by the terminal, the first high frequency beam scanning range for a high frequency beam of the access network device.

Abstract: Embodiments of this application provide a beam configuration method and apparatus. The method includes: determining base station scheduling information rank, and determining a direction of arrival power spectrum; determining peak information based on the direction of arrival power spectrum; determining, based on the peak information, beam directions that meet power conditions; selecting, based on a preset filtering condition, at least one candidate beam direction from the beam directions that meet the power conditions; and determining a target beam direction of a terminal from the at least one candidate beam direction based on the base station scheduling information rank, a value of a channel quality indicator CQI, and the direction of arrival power spectrum. In this way, a beam configuration manner on a terminal side is more flexible, to meet requirements of different service scenarios, and improve stability of a communications link.

Abstract: A beam selection method includes determining, by a terminal, a first angular power spectrum of a low frequency channel transmitted between the terminal and an access network device, determining, by the terminal, a first high frequency beam scanning range based on the first angular power spectrum, and scanning, by the terminal, the first high frequency beam scanning range for a high frequency beam of the access network device.

Abstract: A beam correspondence capability reporting method includes determining, by a terminal device based on first determining information and a first determining condition, whether the terminal device has a beam correspondence capability. When the terminal device has the beam correspondence capability and a beam strength of a downlink receive beam is not less than a first strength threshold, determining, by the terminal device, an uplink transmit beam using the beam correspondence capability. Transmitting, by the terminal device, first communication information using the uplink transmit beam, receiving, by the terminal device, n transmission requests for the first communication information, performing detaching, by the terminal device, and reporting, by the terminal device, first capability information in a process of re-accessing a base station, indicating that the terminal device does not have the beam correspondence capability.