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METHOD AND SUBSCRIBER UNIT FOR CONTROLLING INITIAL POWER RAMP-UP USING SHORT CODES

  • US 20080240047A1
  • Filed: 05/07/2008
  • Published: 10/02/2008
  • Est. Priority Date: 06/27/1996
  • Status: Active Grant
First Claim
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1. A communication method for use with a code division multiple access (CDMA) subscriber unit, the method comprising:

  • generating a first code, the first code having a first length;

    generating a second code, the second code having a second length greater than the first length, the second code having a period, which is aligned with the length of the first code;

    transmitting a first radio frequency signal from an antenna of the CDMA subscriber unit, the first radio frequency signal carrying the first code at a first power level, at least a portion of the second code, and data; and

    in an absence of an acknowledgement signal received by the CDMA subscriber unit, setting a power level of the first code to a second power level, the second power level is greater than the first power level.

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