Patent ID: 9001770
Filing Date: 2015-04-07
Classification: H04B,H04J,H04L,H04W

Abstract:
1. A method for transmitting a spread signal by a transmitting end in a wireless communication system, the method comprising: selecting spreading codes of a spreading factor among spreading codes set having a plurality of spreading factors, the plurality of spreading factors including a spreading factor 2 and a spreading factor 4; spreading a plurality of signals using the spreading codes of the spreading factor; multiplexing the spread plurality of signals into one or more physical hybrid automatic repeat request indicator channel (PHICH) groups; and transmitting the one or more PHICH groups to a receiving end through one or more transmit structures which are configured in an orthogonal frequency division multiplexing (OFDM) symbol, wherein a number of PHICH groups when the spreading codes of the spreading factor are selected from spreading codes of the spreading factor 2 is determined as twice of the number of PHICH groups when the spreading codes of the spreading factor are selected from spreading codes of the spreading factor 4.