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Spread spectrum bit allocation algorithm

  • US 6,144,696 A
  • Filed: 12/31/1997
  • Issued: 11/07/2000
  • Est. Priority Date: 12/31/1997
  • Status: Expired due to Term
First Claim
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1. A method for use in a data modulator for allocating bits to data channel frequencies comprising the steps of:

  • storing mask power level data representing a respective maximum power level for each of said data channel frequencies;

    storing aggregate power level representing a total amount of signal power to be applied in all of said data channel frequencies;

    allocating bits, such that bits are allocated up to said respective maximum power level for each of said data channel frequencies and such that each of said bits is allocated to a single respective one of said data channel frequencies; and

    when said aggregate power level is not substantially reached in said step of allocating, further allocating bits to multiples of said data channel frequencies for transmission at reduced power rates per channel frequency, to permit further bits to be allocated, until an aggregate power limit is substantially reached and said respective maximum power level is reached.

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