Patent ID: 8224332

Claim:
A method for forming a moving network group by a mobile relay station (MRS) in a mobile multi-hop relay (MMR) system, the method comprising: determining, by the mobile relay station, whether a transportation means mounted with the mobile relay station is at a predetermined location derived from travel information; when a velocity information of the transportation means at the predetermined location is zero (0), determining, by the mobile relay station, whether to include a mobile station (MS) to the moving network group based at least partly upon a signal that the mobile station receives from the mobile relay station, the determining comprising: determining the mobile station as a candidate mobile station when the mobile station satisfies a first condition in which a strength of the signal received from the mobile relay station for a predetermined first period exceeds a predetermined first threshold for a first time; and determining, by the mobile relay station, the candidate mobile station as an on-board mobile station when the candidate mobile station satisfies a second condition in which the strength of the signal received from the mobile relay station for a predetermined second period is maintained constantly for a predetermined second time, and including the on-board mobile station in the moving network group; and determining whether the on-board mobile station satisfies the first condition and the second condition, whenever the velocity information of the transportation means at the predetermined location is zero (0), and deleting the on-board mobile station from the moving network group when the on-board mobile station fails to satisfy at least one of the first and second conditions.