METHOD AND APPARATUS FOR SENDING AND RECEIVING MULTI-USER DATA

摘要

Disclosed are a method and apparatus for sending and receiving multi-user data. The method comprises: at a sending end, after multi-user data are subject to channel encoding, performing encoding modulation on each path of data that are subject to channel encoding according to an encoding matrix, wherein a codeword of each path of channel data corresponds to a column of the encoding matrix; performing power allocation on each path of channel data by taking a codeword as a unit; mapping a codeword modulation symbol of each path of channel data to a multiple-input multiple-output layer; after performing multiple-input multiple-output pre-coding, performing resource mapping on each path of channel data; and sending each path of data that are subject to resource mapping after performing orthogonal frequency division multiplexing modulation on same respectively. A receiving end extracts prior information about user data from data acquired by means of a multi-user joint detection according to a mapping relationship between the codeword modulation symbol and the multiple-input multiple-output layer, power, and a codeword of the encoding matrix; and separates the user data according to the prior information about the user data. The present application can support more users, and can solve the problem of interference between wave beams.