name: QPSK
full_form: Quadrature Phase Shift Keying (modulation)
context: category 14(Rel-5 and later releases; QPSK or 16QAM): UE HS-DSCH Physical Layer category 15(Rel-5 and later releases; QPSK or 16QAM): UE HS-DSCH Physical Layer category 16(Rel-8 and later releases; QPSK ,16QAM or 64QAM): UE HS-DSCH Physical Layer category 17(Rel-8 and later releases; QPSK ,16QAM or 64QAM): UE HS-DSCH Physical Layer category 18(Rel-8 and later releases; QPSK ,16QAM or 64QAM): UE HS-DSCH Physical Layer category 19(Rel-8 and later releases; QPSK ,16QAM or 64QAM): UE HS-DSCH Physical Layer category 20(Rel-8 and later releases; QPSK ,16QAM or 64QAM): UE HS-DSCH Physical Layer category 21(Rel-8 and later releases; QPSK ,16QAM or 64QAM): UE HS-DSCH Physical Layer category 22(Rel-8 and later releases; QPSK ,16QAM or 64QAM): UE HS-DSCH Physical Layer category 23(Rel-8 and later releases; QPSK ,16QAM or 64QAM): UE HS-DSCH Physical Layer category 24(Rel-8 and later releases; QPSK ,16QAM or 64QAM): UE HS-DSCH Physical Layer category 25(Rel-8 and later releases; MIMO + QPSK, 16QAM
description: Quadrature Phase Shift Keying (QPSK) is a method used to transmit data over wireless channels by encoding information into variations of the phase of a carrier signal. It's a digital modulation scheme commonly used in telecommunications.
explanation: The text describes QPSK as a technique for transmitting data using variations in carrier signal phase, placing it firmly within the category of Modulation Techniques.
section_title: 6.11.5.4.6.1Interactive or background / UL:8 DL: [max bit rate depending on UE category] / PS RAB + UL:3.4 DL:3.4Â kbps SRBs for DCCH
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