×

Method and device for transmitting control information in a wireless communication system

  • US 9,025,560 B2
  • Filed: 04/21/2011
  • Issued: 05/05/2015
  • Est. Priority Date: 04/21/2010
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for transmitting control information through a Physical Uplink Control Channel (PUCCH) by a user equipment (UE) in a wireless communication system, the UE having a plurality of antenna ports including a first antenna port and a second antenna port, the method comprising:

  • obtaining a modulation symbol from the control information;

    spreading the modulation symbol using a first cyclic shift and a first orthogonal sequence to obtain first spread modulation symbols for the first antenna port;

    spreading the modulation symbol spread using a second cyclic shift and a second orthogonal sequence to obtain second spread modulation symbols for the second antenna port;

    obtaining an additional modulation symbol from the control information;

    spreading the additional modulation symbol using a third cyclic shift and a third orthogonal sequence to obtain third spread modulation symbols for the first antenna port;

    transmitting the first and third spread modulation symbols via a first PUCCH on the first antenna port and the second spread modulation symbols via a second PUCCH on the second antenna port,wherein the first and third spread modulation symbols and the second spread modulation symbols are transmitted in a same slot,wherein the third spread modulation symbols are mapped to a same physical resource block with the first spread modulation symbols,wherein each of the first and second cyclic shifts and each of the first and second orthogonal sequences are determined based on PUCCH resource index information for each antenna port,wherein PUCCH resource index information for the first antenna port is determined by a lowest control channel element (CCE) index used for a physical downlink control channel (PDCCH) transmission, andwherein PUCCH resource index information for the second antenna port is obtained by adding 1 to a value of the PUCCH resource index information for the first antenna port.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×