How does UMTS differ than HSPA?

UMTS (universal mobile telecommunication system)for voice and data and the modulation technique is QPSK

HSPA(high speed packet access for data only and the modulation technique vary QPSK16 QAM64QAM .

HSPA+ using the mimo       

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UMTS is3rd mobile generation technology for voice and data transfer, HSPA is enhancement of UMTS for high speed data tranfer.