High-Speed Uplink Packet Access

Pada "Layer" 1, HSUPA memperkenalkan kanal fisik baru E-AGCH (Access Grant Channel), E-DCH Relative Grant Channel, F-DPCH (Fractional-DPCH), E-HICH (E-DCH Hybrid ARQ Indicator Channel), E-DPCCH (E-DCH Dedicated Physical Control Channel) dan E-DPDCH (E-DCH Dedicated Physical Data Channel).