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Method for allocating pilots

  • US 9,386,561 B2
  • Filed: 05/16/2013
  • Issued: 07/05/2016
  • Est. Priority Date: 11/01/2006
  • Status: Active Grant
First Claim
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1. A method for transmitting pilot signals in a wireless communication system supporting a single carrier frequency-division multiple access (SC-FDMA) scheme, the method performed by a user equipment (UE) and comprising:

  • transmitting, from the UE, a first pilot signal included in at least one first SC-FDMA symbol of a first subframe and at least one second SC-FDMA symbol of a second subframe following the first subframe, wherein each of the first subframe and the second subframe is transmitted within 0.5 ms, wherein a first frequency band used for the first pilot signal in the first subframe is different from a second frequency band used for the first pilot signal in the second subframe, wherein the first pilot signal is used for demodulating data; and

    transmitting, from the UE, a second pilot signal used for measuring channel quality, wherein the second pilot signal is only included in the second subframe, and in a last SC-FDMA symbol of the second subframe, wherein a frequency band used for transmitting the second pilot signal is wider than a frequency band used for transmitting the first pilot signal in the first subframe or the second subframe.

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