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Controlling multiple modems in a wireless terminal using dynamically varying modem transmit power limits

  • US 7,366,142 B2
  • Filed: 09/01/2005
  • Issued: 04/29/2008
  • Est. Priority Date: 10/29/2002
  • Status: Expired due to Term
First Claim
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1. A method of controlling transmit power in a data terminal constrained to operate within an aggregate transmit power limit, the data terminal including N wireless modems having their respective transmit outputs combined to produce an aggregate transmit output, the method comprising:

  • (a) establishing an individual transmit power limit in each of the N modems;

    (b) scheduling each of a plurality of the N modems to transmit respective data;

    (c) receiving a respective, reported transmit power estimate from each of the N modems; and

    (d) adjusting the individual transmit power limits in at least some of the N modems based on the aggregate transmit power limit and the respective transmit power estimates from the N modems, to cause each individual transmit power limit to track a corresponding individual modem transmit power.

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