working frequency for a mixer in WCDMA applications

may i know what is the working frequency range for a mixer for direct conversion receiver for WCDMA applications?
thanks

FDD-WCDMA receive frequency band is:
-2110MHz to 2170MHz
http://www.umtsworld.com/technology/frequencies.htm

Look at 3GPP homepage:

If you want (what i think) design UMTS (=WCDMA=UTRA) mixers for FDD look at TS 25.101 (technical specification) It is free for download.

http://www.3gpp.org/specs/releases.htm