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IQ imbalance image compensation in multi-carrier wireless communication systems

  • US 8,619,716 B2
  • Filed: 02/21/2011
  • Issued: 12/31/2013
  • Est. Priority Date: 02/21/2011
  • Status: Active Grant
First Claim
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1. A method in a wireless communication terminal, the method comprising:

  • receiving, at the terminal, an aggregated carrier including a first component carrier and a second component carrier;

    determining a signal characteristic of the first component carrier and a signal characteristic of the second component carrier;

    determining a level of interference from a signal received on the first component carrier to a signal on the second component carrier based on the signal characteristic of the first component carrier and the signal characteristic of the second component carrier;

    determining whether modulation coding scheme scheduled on the second component carrier is subject to a specified level of interference from the first component carrier based on determining that the modulation coding scheme scheduled on the second component carrier is within a pre-determined range; and

    providing signal interference information to a serving base station only when the determined interference level exceeds a predetermined value and when the modulation coding scheme scheduled on the second component carrier is subject to the specified level of interference.

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