A CDMA-based radio access design for UMTS
P.G. Andermo, L. Magnus Ewerbring · IEEE Personal Communications · 1995
The major challenge for the CODIT (code division testbed) project is to design a concept that can support a range of new services with a bit range of up to 2 Mb/s. The concept must be flexible enough to meet the requirements of future services envisioned for UMTS. The required task of the project is to investigate a concept based on spread spectrum techniques. The system that is being developed in the project is based on direct sequence CDMA. New innovative techniques are being developed in the project, where the solutions go far beyond the CDMA concepts proposed for second generation systems.>