| 摘要 |
<p>The present invention relates to a method for defining and applying a hop count and a hop limit, which are new factors in a request message, in a M2M system. More specifically, the present invention provides: a method for measuring hop distance costs in a multi-hop environment by using the hop count and the hop limit in the request message; and a method for defining a protection mechanism with respect to an abnormal circular path and a transmission range of broadcast-type messages.</p> |
