Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1996-03-07
1999-07-27
Cumming, William
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455435, 455437, A40Q 736
Patent
active
059307102
ABSTRACT:
In a TDMA or CDMA cellular telephone network including a plurality of registration areas, and in instances of mobile station cell re-selection between a cell located in a first registration area and a cell located in a second registration area, the mobile station processes control or pilot channel signal strength measurements in view of both a conventional reselection hysteresis and an additional registration hysteresis. Reselection is performed by the mobile station when the control or pilot channel signal strength measured with respect to the second registration area cell exceeds the control or pilot channel signal strength measured with respect to the first registration area cell by the sum total of both the reselection hysteresis and the registration hysteresis. This makes it more difficult to obtain an inter-registration area cell reselection to the benefit of minimizing the likelihood of incurring unnecessary consumption of valuable cellular air interface and system resources due to mobile station transit back and forth between the two registration areas.
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Lupien Francis
Sawyer Francois
Cumming William
Scott, Jr. Linwood C.
Telefonaktiebolaget L M Ericsson
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