2007-318354 is referenced by 43 patents.

PROBLEM TO BE SOLVED: To communicate with a plurality of base stations whose communication modes (communication methods) are different, and actualize smooth switching between communications.SOLUTION: Communication devices 10 are provided with communication units corresponding to each communication system such as CDMA, WiMAX, WiFi, etc., and register information regarding the base stations in a base station database 11. A base station search unit 21 detects or predicts a base station which is possible to communicate referring the base station database 11, a connection discrimination unit 22 discriminates whether there is a merit to perform a communication connection or not based on the communication mode of the searched base station to determine propriety of connection, and an integrated communication unit 23 communicates with the base station which is discriminated to be possible to be connected.

Title
Communication device for mobile and communication method for mobile
Application Number
2006-144642
Publication Number
2007-318354
Application Date
May 24, 2006
Publication Date
December 6, 2007
Inventor
Sawada Junichi
Hagiwara Masayuki
Assignee
Fujitsu Ten
IPC
H04Q 07/34
H04Q 07/38
H04Q 07/22