Method of allocating radio channels
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United States of America Patent
Stats
-
Apr 29, 1997
Issued Date -
N/A
app pub date -
Feb 28, 1996
filing date -
Nov 11, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A channel allocation method in a cellular radio system. The mobile radios have permanently stored in their memories a first group of radio channels scanned in a normal hunt sequence and a second group of radio channels scanned in a comprehensive hunt sequence. When the control channel of a base station is changed, a channel permanently belonging to the first group is allocated as a new control channel to the base station whenever such a channel is available. If a channel belonging to the second group has to be allocated as a control channel, it is transferred temporarily to the first group and the change of group is announced through control channels to the mobile radios. A channel permanently belonging to the first group is re-established as the control channel of a base station as soon as such a channel is available and the freed channel is returned to the second group.
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