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Communication System, a Repeater Terminal in a Communication System and a Communication Method

  • US 20080165721A1
  • Filed: 01/20/2006
  • Published: 07/10/2008
  • Est. Priority Date: 03/15/2005
  • Status: Active Grant
First Claim
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1. A communication system for transmitting packet data from a transmitter terminal to a destination terminal by repeating at at least one repeater terminal, comprisinga first transmitting means for transmitting the packet data from the transmitter terminal toward the destination terminal;

  • a receiving means for receiving a response signal that is for the packet data transmitted by the first transmitting means and is transmitted from the destination terminal; and

    a second transmitting means for transmitting a control signal including information for the transmitter terminal and the destination terminal and information for the packet data depending on presence or absence and type of the response signal;

    wherein the first transmitting means further includes a means for repeating the packet data after sending the control signal from the second transmitting means;

    the destination terminal includes a third transmitting means for sending a response signal to the transmitter terminal in response to the packet data transmitted from the first transmitting means,the repeater terminal comprises,a first repeating means for receiving the packet data and sending the packet data to the destination terminal or another repeater terminal;

    a second repeating means for sending the response signal received by the receiving means to the transmitter terminal or another repeater terminal; and

    a determining means for determining a contribution of the repeater terminal numerically based on number of repeating times of the packet data repeated by the first repeating means and number of repeating times of the response signal repeated by the second repeating means,the repeater terminal enters in a repeating mode for continuously sending the packet data when the determining means determines that the contribution is high, or a numeric value for the contribution reaches a predetermined threshold or higher, and the repeater terminal enters in a sleep mode for repeating no packet data when the determining means determines that the contribution is low, or the numeric value for the contribution does not reach a predetermined threshold or higher.

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