Patent ID: 6985511

Claim:
A baseband processor for a wireless mobile station, comprising: a spread-spectrum transceiver for transmitting and receiving wireless spread-spectrum signals; an acknowledgment detector for detecting an acknowledgment in a received spread-spectrum signal; a data and control processor, for detecting and processing data and control information contained in a received spread-spectrum signal; a preamble generator for generating preamble signals; a multiplexer, for multiplexing data and the preamble signals; a packet formatter, coupled to the multiplexer, for formatting the multiplexed data and preamble signals into packets for wireless transmission; and a controller, responsive to the acknowledgement detector, for controlling the transceiver the preamble generator, the multiplexer and the packet formatter, such that in operation the baseband processor; receives frame-timing signals from first and second base stations over at least one broadcast common-synchronization channel; determines first and second frame timings from the received frame-timing signals; transmits a first access burst signal comprising a first preamble code associated with the first base station at a time determined from the first frame timing signal; transmits a second access burst signal comprising a second preamble code associated with the second base station at a time determined from the second frame timing signal; receives an acknowledgement signal from at least the first base station; selects the first base station in response to the receipt of an acknowledgement signal; and transmits a signal comprising packet data and control information over an uplink channel to the first base station.