Patent ID: 7054298
Filing Date: 2006-05-30
Classification: H04B,H04L,H04W,Y02D

Abstract:
1. A mobile station device comprising: a preamble generator for generating a preamble signal to be transmitted in an intermittent pattern that reduces interference on other reverse link channels during a preamble interval prior to a transmission interval of a reverse access channel message; and a transmitter for spreading and modulating the preamble signal received from the preamble generator and transmitting it to a base station, wherein the preamble interval includes a non-transmission interval, and wherein the intermittent pattern is determined using T=N(P+B)+A, where T indicates a total duration of the preamble interval, N is an integer greater than or equal to zero, P indicates a duration of a transmission interval, B indicates a duration of the non-transmission interval, and A indicates a duration of a final transmission interval before the transmission interval of the reverse access channel message.