Patent ID: 6389056
Filing Date: 2002-05-14
Classification: H04B,H04J,H04L,H04W

Abstract:
A method of providing a packet communication service in a code-division multiple-access (CDMA) wireless network, comprising:broadcasting a frame-timing signal from a CDMA base station of the network, over a common synchronization channel modulated with a common chip-sequence signal; selectively authorizing remote CDMA stations to use a Common Packet Channel for packet transmissions to the CDMA base station, on a slotted-ALOHA basis, in a predetermined relationship to the frame-timing signal; receiving RS power control signals over the Common Packet Channel from each respective one of the authorized remote CDMA stations, at the CDMA base station; transmitting BS power control signals to the respective authorized remote CDMA stations, from the CDMA base station, at power levels based on the received RS power control signals; receiving BS power control signals from the CDMA base station at each respective one of the authorized remote CDMA stations; transmitting RS power control signals over the Common Packet Channel to the CDMA base station, from the respective authorized remote CDMA stations at power levels based on received BS power control signals; transmitting packet data and control signals from the respective authorized remote CDMA stations over the Common Packet Channel to the CDMA base station based on received BS power control signals; and transmitting control signals over a downlink channel intended for respective authorized remote CDMA stations at power levels based on received RS power control signals.