The present invention relates to data transmission and reception method in a soft handoff environment of a wireless communication system. A method for receiving data in a terminal in soft handoff environment of a wireless communication system according to an aspect of the present invention, from the first base station, terminal, first it is interleaved transferred data using the first interleaver pattern Before receiving the sequence, from the second base station receives the second sequence is interleaved the transferred data using the second interleaver pattern and receives the entire frame assigned the first sequence, and decoding by combining the second sequence and the first sequence. [Selection Figure 17
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