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Apparatus and method for transmitting/receiving pilot pattern set to distinguish base station in orthogonal frequency division multiplexing (OFDM) communication system

  • US 7,436,758 B2
  • Filed: 10/27/2004
  • Issued: 10/14/2008
  • Est. Priority Date: 10/27/2003
  • Status: Expired due to Fees
First Claim
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1. A method for mapping a pilot signal to a time-frequency cell in an OFDMA (Orthogonal Frequency Division Multiple Access) wireless communication system, in which the time-frequency cell includes at least one OFDM symbol and at least one sub-carrier within a signal frame cell (FC), a total frequency bandwidth of the OFDMA system is divided into at least one sub-bandwidth including a plurality of sub-carriers, and the FC includes one sub-bandwidth of the at least one sub-bandwidth and at least one OFDM symbol interval, the method comprising the steps of:

  • a) spreading a pilot signal using a first orthogonal code and a data signal using a second orthogonal code different from the first orthogonal code;

    b) combining the spread pilot signal and the spread data signal; and

    c) mapping the combined signal to a predetermined time-frequency cell in the FC.

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