DIRECTIONAL BEAM BASED OPEN-LOOP MULTI-THREAD TRANSMITTING METHOD AND BASE STATION

摘要

Embodiments of the present invention provide a directional-beam-based open-loop multi-stream transmission method and a base station (200). The base station includes: a first determining unit (201), configured to determine a first matrix according to an eigenvector, where the eigenvector is a main eigenvector obtained by performing eigenvector decomposition on an uplink channel response of a channel of the base station, and the eigenvector is an n-dimensional vector, where n is a quantity of transmit channels of the channel of the base station, n-dimensional vectors formed by any two rows of elements of the first matrix are uncorrelated, and the channel of the base station is a SIMO channel of the base station or one SIMO channel decomposed from a MIMO channel of the base station; a second determining unit (202), configured to determine a second matrix that is used to perform randomized encoding on a transmit signal of the channel of the base station with reference to the first matrix; and a channel correction unit (203), configured to perform beamforming on a transmit channel of the channel of the base station according to the first matrix and the second matrix.