A flexible multi-rate communications system (100). It supports a plurality of distributed user terminals (104-106) in full-duplex simultaneous communications with a central base station (102), where each user terminal is provided on demand with one of multiple bit rates at a negotiated quality of service (QOS). In one embodiment of this system (100), each user is assigned a variable bit rate, a variable processing gain, a variable transmit power, and a unique fixed rate spreading code. This results in a constant bandwidth signal received at a relative power level corresponding to the negotiated QOS. The above embodiment can be implemented in Frequency Division Duplexing and Time Division Duplexing configurations. This system (100) can be used in wireless local loop, mobile cellular, and wireless multimedia access systems.

Title
Multi-rade wireless communications system
Application Number
97193643
Publication Number
1215517
Application Date
March 26, 1997
Publication Date
April 28, 1999
Inventor
Ader Canim
Christopher Flores
Saman Behtash
Agent
li jialin
Assignee
Adicom Wireless
IPC
H04J 13/00