The WCDMA air interface has been standardized by the 3rd Generation Partnership Project (3GPP) as a radio transport medium for global mobile communication systems. Consequently, the fi rst versions of the 3GPP air interface specifications enabled superior user data rates and
system throughput capacities compared to any 2nd generation mobile communication standard.
The WCDMA system’s adaptability enables a new and significant evolutionary step in packet data
access: the HSDPA Solution. HSDPA is standardized in 3GPP
Release 5.
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