发明名称 RADIO COMMUNICATION TERMINAL AND ITS CONTROL METHOD
摘要 PROBLEM TO BE SOLVED: To shorten a processing time until a communication network is informed of the state information of a terminal after a starting, and to enable the simplifying of a process and the reduction of a cost in the case of a manufacture. SOLUTION: An antenna 21 and an RF section 20 conducts a radio communication by selectively using either of a plurality of frequencies. A USIM card recording at least an enterpriser discriminating information (a PLMN) and a subscriber discriminating information is fitted to a USIM module 25. A ROM 35 stores all softwares for carrying out functions related to each service provided by all communication enterprisers severally independently. A control section 28 reads a PLMN information from the USIM card after a power supply is turned on, and loads only the software corresponding to the PLMN information to a RAM 36 from the ROM 35. The control section 28 determines the frequency searched first after the power supply is turned on on the basis of the information described in the loaded software. COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2006279160(A) 申请公布日期 2006.10.12
申请号 JP20050090845 申请日期 2005.03.28
申请人 SONY ERICSSON MOBILECOMMUNICATIONS JAPAN INC 发明人 GOTO MITSURU
分类号 H04M1/675;H04B7/26;H04W88/02;H04W92/08 主分类号 H04M1/675
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