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Radio link synchronization in a wireless communication device

  • US 9,654,985 B2
  • Filed: 05/09/2013
  • Issued: 05/16/2017
  • Est. Priority Date: 11/07/2008
  • Status: Active Grant
First Claim
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1. A wireless communication terminal comprising:

  • a transceiver configured to operate in either discontinuous reception (DRX) mode or in non-DRX mode; and

    a controller coupled to the transceiver, the controller configured to determine a synchronization based on determining a decoder error rate corresponding to a hypothetical control codeword over an evaluation period that includes at least one of a first evaluation period and a second evaluation period, wherein the transceiver uses the first evaluation period when the transceiver is configured to operate in DRX mode and the second evaluation period when the transceiver is configured to operate in non-DRX mode, wherein the first evaluation period is different than the second evaluation period, the controller configured to attempt to decode a control codeword in a received signal based on the hypothetical control codeword, the controller configured to conclude that an out of synchronization event has not occurred if the control codeword is decoded successfully.

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