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METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM

  • US 20130022017A1
  • Filed: 04/04/2011
  • Published: 01/24/2013
  • Est. Priority Date: 01/17/2010
  • Status: Active Grant
First Claim
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1. A method for, at a user equipment (UE), transmitting control information through a physical uplink control channel (PUCCH) in a wireless communication system, the method comprising:

  • spreading a first modulated symbol sequence such that the first modulated symbol sequence corresponds a plurality of single carrier-frequency division multiplexing (SC-FDMA) symbols in a first slot, to obtain a plurality of second modulated symbol sequences corresponding to the plurality of SC-FDMA symbols;

    performing a discrete Fourier transform (DFT) precoding on the plurality of second modulated symbol sequences to obtain a plurality of complex symbol sequences; and

    transmitting the plurality of complex symbol sequences through the PUCCH,wherein scrambling is applied to the plurality of second modulated symbol sequences at SC-FDMA symbol level.

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