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Method of transmitting data

  • US 9,060,327 B2
  • Filed: 11/09/2009
  • Issued: 06/16/2015
  • Est. Priority Date: 11/12/2008
  • Status: Expired due to Fees
First Claim
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1. A data transmission method comprising:

  • receiving from a plurality of receiving stations, which include base stations and relay stations, a state information value corresponding to each receiving station;

    measuring signal strength with respect to the receiving stations;

    selecting any one receiving station among the receiving stations which have a high signal strength value obtained by measuring the signal strength and which have a small state information value; and

    transmitting data to the selected receiving station,wherein the state information value is received via a broadcast channel or a system information message,wherein the state information value is expressed as a bitmap format,wherein the state information value is determined based on a number of hops and an offered load of each of the receiving stations,wherein the state information value is determined based on the number of hops accumulated during a time for delivering the data up to a base station, and the less the number of hops, the smaller the state information value,wherein the state information value is set to be a high value when an offered load of the selected receiving station is high, and the offered load is high in a receiving station of which any one of an amount of the used radio resources, a number of connected user equipments, and an amount of buffered data is high,wherein the selecting of the one receiving station comprises calculating a selection suitability for each receiving station by using the signal strength value and the state information value, andselecting the receiving station having the highest selection suitability, andwherein the selection suitability has a high value when the signal strength value is high and the state information value is small.

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