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Method for adjusting transmit power during call set-up, and a cellular radio system

  • US 6,272,354 B1
  • Filed: 02/17/1998
  • Issued: 08/07/2001
  • Est. Priority Date: 08/18/1995
  • Status: Expired due to Fees
First Claim
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1. A method for adjusting a transmit power of a communication over a communication channel in a cellular radio system comprising the steps of:

  • estimating a desired signal-to-noise ratio of the communication over the communication channel between a base station and a subscriber equipment before the communication channel is established;

    calculating, during a call set-up period, a desired transmit power value for transmitting the communication over the communication channel from a transmitter in the system, wherein the desired signal-to-noise ratio is obtained;

    calculating, during the call set-up period, an initial transmit power value for transmitting the communication over the communication channel using at least one power control parameter of the system and a predetermined time constant, wherein the initial power value is smaller than the desired power value;

    initiating a transmission of the communication over the communication channel using the initial transmit power level; and

    increasing a transmission power of the communication from the initial transmit power level to the desired transmit power value over a predetermined time period.

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