发明名称 |
MOBILE COMMUNICATION SYSTEM |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mobile communication system which reduces consumption power. <P>SOLUTION: The radio communication system is characterized to have a base station which accommodates a plurality of radio systems and terminals which communicate with the base station using the plural radio systems. The terminal calculates a first distance between an access point of the radio LAN and the terminal, and discriminates whether communication by the radio LAN is possible or not by comparing the calculated first distance and a second distance which is a distance in which the communication by the radio LAN is possible. <P>COPYRIGHT: (C)2009,JPO&INPIT |
申请公布号 |
JP2009055330(A) |
申请公布日期 |
2009.03.12 |
申请号 |
JP20070219962 |
申请日期 |
2007.08.27 |
申请人 |
HITACHI LTD |
发明人 |
YAMAOKA RYOJI;YAMAMOTO JUNJI;HANAOKA MASAYUKI;SUZUKI TOSHIAKI;YANO TADASHI |
分类号 |
H04W64/00;H04W24/00;H04W76/02;H04W84/12 |
主分类号 |
H04W64/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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