| US 7,509,139 B2 | ||
| Method for selecting base station | ||
| Ryota Yamasaki, Kokubunji (Japan); Kumiko Takikawa, Tama (Japan); Atsushi Ogino, Kodaira (Japan); and Takaki Uta, Kodaira (Japan) | ||
| Assigned to Hitachi, Ltd., Tokyo (Japan) | ||
| Filed on Jan. 11, 2006, as Appl. No. 11/329,153. | ||
| Claims priority of application No. 2005-115238 (JP), filed on Apr. 13, 2005. | ||
| Prior Publication US 2006/0234756 A1, Oct. 19, 2006 | ||
| Int. Cl. H04Q 7/20 (2006.01); H04Q 7/32 (2006.01) | ||
| U.S. Cl. 455—525 [455/524; 455/517; 455/550.1; 455/434; 455/432.1; 370/310; 370/310.2; 370/328] | 16 Claims |
| 1. A connection control method for selecting one base station, to which a terminal is to connect, from a plurality of base
stations in a wireless communication system, said connection control method comprising:
a first step of obtaining an index of communication quality between the terminal and the base stations for each of said plurality
of base stations wherein, said plurality of base stations being classified into a plurality of groups;
a second step of calculating characterizing quantities of the communication quality for each of the groups; and
a third step of specifying one of the plurality of groups based on the charactering quantities and selecting one of base stations,
which belong to the specified group, as a connection destination base station of said terminal.
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