Patent ID: 7876837

Claim:
A method for a mobile station to reduce access noise in a spread spectrum mobile communication system that includes the mobile station and at least one base station, the mobile station being located in a serving area of the base station, the method comprising: receiving a first resource indicator message broadcast by the base station, the first resource indicator message indicating an availability of each of a plurality of communication resources supported by the base station; determining whether the first resource indicator message indicates that a desired communication resource is available; if the first resource indicator message indicates that the desired communication resource is available, waiting a period of time during which the mobile station does not transmit access request messages to the base station; after expiration of the period of time, receiving a second resource indicator message broadcast by the base station, the second resource indicator message indicating an availability of each of the plurality of communication resources supported by the base station; and if the second resource indicator message indicates that the desired communication resource is still available transmitting a request to access the desired communication resource to the base station.