Patent ID: 9462599
Filing Date: 2016-10-04
CPC Classification: H04B,H04L,H04W

Claim Text:
1. A wireless communication method utilizing a large-scale antenna array, comprising: a. deploying the large-scale antenna array at the base station side of a wireless communication network for wireless communication, wherein, the antenna array is composed of tens of antenna units arranged at an interval at a magnitude of half wavelength, the antenna array being one of a one-dimensional or two-dimensional array, the large-scale antenna array forming tens of coverage beams over an area covered by the base station; b. accomplishing beam domain division of spatial resources at the base station side with one of an analog multi-beam forming network or a digital domain multi-beam forming method, wherein, the base station carries out wireless communication with multiple users, and wherein the wireless communication includes a same time-frequency resource and a communications process, the communication process is being implemented in the beam domain; c. each user using a different time-frequency resource to transmit detection signals; the base station obtaining beam domain long-time channel information of each user according to received detection signals; d. accomplishing user scheduling in the beam domain utilizing the beam domain long-time channel information and a correlation matrix derived therefrom to provide an approximation of variance of interference, wherein the beam domain long-time channel information is calculated using a channel characteristics mode energy coupling matrix, the scheduling enabling users to communicate utilizing the same time-frequency resource and to allocate a corresponding beam set for each user; e. each user communicating with the base station on a selected beam set, wherein, the beam sets occupied by the users communicating with the same time-frequency resource have no overlap among them; such that multi-user SDMA transmission in the beam domain is achieved due to the use of the correlation matrix; f. in the up links, the users communicating with the same time-frequency resource to transmit pilot frequency signals and data signals simultaneously; the base station receiving and dealing with the data from the users on different beam sets; wherein, pilot frequency signals from different users are not required to be orthogonal to each other, such that the pilot frequency is reusable among the space division users; and g. in down links, the base station transmitting signals simultaneously, including pilot frequency signals and data signals, to the users on selected beam sets with the same time-frequency resource; the users receiving and dealing with the data; wherein, pilot frequency signals for different users are not required to be orthogonal to each other, whereby the pilot frequency is reusable among the space division users.