Patent ID: 8462899
Filing Date: 2013-06-11
Classification: H04L

Abstract:
1. A method for multi-user detecting of an Orthogonal Frequency Division Multiplexing (OFDM) transmission signal, comprising: combining received signals, at corresponding time-frequency symbol positions in all of multiple repeated Block Units in relation to a same data symbol of respective users in the multiple repeated Block Units, into a received data sequence; determining a combined repeated channel response sequence array corresponding to the received data sequence; and detecting the received data sequence using the combined repeated channel response sequence array to obtain data symbols of the respective users; and wherein determining the combined repeated channel response sequence array corresponding to the received data sequence comprises: obtaining combined repeated channel response sequences for the respective users from a Repeat Code sequence consisting of weight factors used for weighting the same data symbol of the respective users in the multiple repeated Block Units, and a repeated channel response sequence which is a combination of channel responses for the respective users in the multiple repeated Block Units; and obtaining the combined repeated channel response sequence array corresponding to the received data sequence from a combination of the combined repeated channel response sequences for the respective users; or obtaining combined repeated channel response sequences for the respective users from a Repeat Code sequence consisting of weight factors used for weighting the same data symbol of the respective users in the multiple repeated Block Units, a repeated channel response sequence which is a combination of channel responses for the respective users in the multiple repeated Block Units, and a scrambling code sequence which is a combination of scrambling codes for the respective users in the multiple repeated Block Units; and obtaining the combined repeated channel response sequence array corresponding to the received data sequence from a combination of the combined repeated channel response sequences for the respective users.