| 摘要 |
Provided are a tag estimation method and a tag identification method using the same in a RFID system. In the tag estimating method, a reader divides tags in an identifiable area into a predetermined number of groups. Tags are identified by applying a pilot frame Lp to a first group among the divided groups. The reader calculates a collision probability Pcoll of tags after the pilot frame ends. Then, unidentified tags of the first group, which are not identified for the pilot frame, are identified by allocating an additional pilot slot Ladd at an end of the pilot frame or generating a new frame L1 according to the collision probability Pcoll.
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