CODE DIVISION MULTIPLE ACCESS (CDMA) COMMUNICATION SYSTEM

摘要

A subscriber unit for use in a communication system includes a spread spectrum radio interface, responsive to a rate function signal from a base station, and first and second despreaders. The base station assigns the rate function spread-spectrum message channels and the first despreader recovers and modifies an information signal one of the spread spectrum message channels. The information channel mode is then modified for processing by the second despreader, with the second despreader supporting a different information signal rate. The subscriber unit has a capability of communicating with a dynamically changing a transmission rate of an information signal which includes multiple spread spectrum message channels. The system includes a closed loop power control system for maintaining a minimum system transmit power level for a radio carrier station and the subscriber units, and system capacity management for maintaining a maximum number of active subscriber units for improved system performance.

主权项

1. A wireless subscriber unit comprising:
a receiver configured to wirelessly receive a program and to store the program in a first memory location; a processor configured to determine whether the program was received correctly; on a condition that the program is determined to be received correctly, the processor further configured to store the program in a second memory location; and the processor further configured to reboot the wireless subscriber unit and load the program from the second memory location.