Reverse sharing signaling channel access method, mobile station and base station

The invention discloses an access method for the reverse share of a signaling channel. The method comprises the following steps: receiving system information which comprises a preset lead frame and a signaling frame parameter for the reverse share of the signaling channel; calculating an access period through the lead frame and the signaling frame parameter; and signaling to the base station at the beginning of the next period. The invention further discloses a mobile platform which comprises a first receiving unit, a first period statistical unit and a first sending unit. The invention further discloses a base station, which comprises a message creating unit and a message sending unit. By the method, the time of interaction between the mobile platform and the base station is shortened, and the failure probability of air interface interaction is reduced, so that the possibility of collision with other signals is reduced, thereby increasing the rate of successful MS signaling.