Patent ID: 6108543
Filing Date: 2000-08-22
Classification: H04W

Abstract:
A radio communication apparatus for use in a radio communication system, wherein a plurality of radio channels in a predetermined band of frequencies include a first group of channels used while awaiting a call origination or a call reception and a second group of channels used in response to the call origination or the call reception, a plurality of signals each being transmitted over at least one of the radio channels, each of the signals including a system identification number, the system including a plurality of service areas, each of the service areas being assigned a system identification number which is broadcast by one or more base stations over at least one of the radio channels, the radio communication apparatus comprising:storing means for storing at least one stored system identification number corresponding to at least one of the service areas;listing means for listing channels of the first group, wherein the system identification number included in the signals transmitted over each channel listed by the listing means coincides with the stored system identification number; andselecting means for selecting a channel of the second group either from channels listed by the listing means or from channels of the second group that are not listed by the listing means, the selecting means giving preference to the channels listed by the listing means over channels of the second group that are not listed by the listing means,and wherein the channel selected by the selecting means is used for the call origination or the call reception.