Invention Grant
- Patent Title: Mobile communication terminal and mobile communication control method
- Patent Title (中): 移动通信终端和移动通信控制方法
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Application No.: US12480446Application Date: 2009-06-08
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Publication No.: US08131289B2Publication Date: 2012-03-06
- Inventor: Yoshimi Sokei , Hiroaki Yamagishi , Hideyuki Sakuramoto , Takehiro Ida
- Applicant: Yoshimi Sokei , Hiroaki Yamagishi , Hideyuki Sakuramoto , Takehiro Ida
- Applicant Address: JP Chiyoda-ku, Tokyo
- Assignee: NTT DoCoMo, Inc.
- Current Assignee: NTT DoCoMo, Inc.
- Current Assignee Address: JP Chiyoda-ku, Tokyo
- Agency: Crowell & Moring LLP
- Priority: JP2008-150787 20080609
- Main IPC: H04W4/00
- IPC: H04W4/00

Abstract:
A mobile communication terminal holds a frequency cancellation list that is information related to cells that cannot be connected, and controls execution/non-execution (frequency cancellation) of the cell search according to the content of the cancellation list. In a case where a frequency is not assigned in a unified manner (when a frequency is assigned to different communication providers in some cells), a frequency cancellation time is set shorter than a case where the frequency is assigned in a unified manner. For example, a frequency f3 is rejected in a cell represented by “another” surrounded by a broken line when the mobile communication terminal moves from an area A to an area B. When the mobile communication terminal further moves to an area C, the frequency cancellation process initiated in the area B terminates. This is because a short frequency cancellation time is set. Therefore, the frequency cancellation time expires while the mobile communication terminal is moving from the area B to the area C. The frequency cancellation terminates, so as to be connectable in the area C of the frequency f3.
Public/Granted literature
- US20090305692A1 MOBILE COMMUNICATION TERMINAL AND MOBILE COMMUNICATION CONTROL METHOD Public/Granted day:2009-12-10
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