Telecommunications – Radiotelephone system – Special service
Reexamination Certificate
2005-04-12
2005-04-12
Hoosain, Allan (Department: 2645)
Telecommunications
Radiotelephone system
Special service
C455S059000, C455S059000, C455S115200, C455S415000, C455S067150
Reexamination Certificate
active
06879823
ABSTRACT:
A mobile station, base station and method for data transmission in a mobile radio system, wherein for the purpose of observing GSM base stations, interruption phases are inserted in a UMTS transmission. To reduce the number of these interruption phases, the maximum effective duration of the interruption phases is chosen to be shorter than is needed under optimum transmission conditions for secure detection of a data packet which is to be detected and is sent from a GSM base station. A shrewd choice of parameters provides a better ratio of effort (effective duration of the interruption phase) to result (detection probability).
REFERENCES:
patent: 5475870 (1995-12-01), Weaver et al.
patent: 5933465 (1999-08-01), Ozaki
patent: 6085107 (2000-07-01), Persson et al.
patent: 6389300 (2002-05-01), Raaf
patent: WO 9210886 (1992-06-01), None
patent: WO 9429981 (1994-12-01), None
patent: WO 9725827 (1997-07-01), None
Bell Boyd & Lloyd LLC
Hoosain Allan
Siemens Aktiengesellschaft
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