Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-03-21
2006-03-21
Cumming, William D. (Department: 2683)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
Reexamination Certificate
active
07016680
ABSTRACT:
A processing control unit appropriately detects that a mobile communication terminal is moving at a high speed and changes criteria for reselection of a cell. When reselection of a cell occurs, the processing control unit searches a cell transition list (step S10), and determines whether or not a cell selected as a local station by the reselection of a cell has already been registered in the cell transition list (step S11). Upon determining that the cell is not registered, the processing control unit registers the cell selected as the local station in the cell transition list (step S12) and increments a variable N indicating the number of registered cells by one (step S13). Thereafter, when a predetermined measurement termination time elapses, the processing control unit determines whether or not the variable N has exceeded a predetermined threshold value and, upon determining that the variable N has exceeded the predetermined threshold value, considering that the mobile communication terminal is moving at a high speed, changes criteria for reselection of a cell from criteria for preferentially reselecting a cell with relatively narrow coverage to criteria for preferentially reselecting a cell with relatively wide coverage.
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International Search Report dated Jul. 2, 2002.
Cumming William D.
Kabushiki Kaisha Kenwood
Robinson Eric J.
Robinson Intellectual Property Law Office P.C.
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