Protection of use in drift terminal in predetermined zone from being interference

Application Number: 00108313
Application Date: 2000.03.12
Publication Number: 1268857
Publication Date: 2000.10.04
Priority Information: 1999/4/16 EP 99107677.9; 1999/3/12 EP PCT/EP99/01643
International: H04B7/26;H04Q7/30
Applicant(s) Name: Sony International (Europe) Co., Ltd.
Inventor(s) Name: M. Webell;G. Winkqin
Patent Agency Code: 72001
Patent Agent: li efei
Abstract The present invention relates to a base station and a method for protecting a predetermined area from disturbing usage of mobile terminals of a wireless telecommunication system. Further, the present invention relates to a mobile terminal the operation mode of which can be changed by mode change information received from a base station to protect a predetermined area. A predetermined area might be an area, in which at least a high frequency part of the mobile terminals should be switched off automatically to avoid interference with electronic or electric devices, e. g. in hospital or airplanes. In other areas, e. g. restaurants, operas or the like, it is sufficient to reduce the volume of acoustic signals to be output so that other people in the area are not disturbed. The base station for protecting the predetermined area according to the present invention thereby comprises generating means for generating mode change information for changing an operation mode of the mobile terminals to protect the predetermined area, and transmitting means for transmitting the generated mode change information within the predetermined area by means of system information messages of a broadcast control channel of the wireless telecommunication system.