H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
325/31
H04Q 7/38 (2006.01)
Patent
CA 1274280
PHD 86307 13 19.02.1987 ABSTRACT Method of and control arrangement for selecting a control channel by a mobile radio station. Prior art radio transmission systems have base stations (BS) which in a geographical arrangement form a cellular system with overlapping radio zones. At least one control channel (CCH) and a plurality of speech channels are assigned to the base stations (BS). To avoid long search tuning times at any arrangement of the control channels (CCH) in the total overall frequency band of the radio transmission system, the base radio station (BS) transmits, at variable time intervals, references to the control channels associated with the base radio station to control channels of neighbouring base stations (3S) and to the substitute channel associated with the base radio station (BS) for the control channels. To avoid the necessity of a large number of such references to be used in an integrated services radio transmitting system each base station (BS) transmits with the object of informing the mobile stations (MS) of the structure of control channels (CCH) via a message transmission channel (COCH) references (NC) to message transmission channels (COCH) of neighbouring base stations (BS) and at least one reference (CC) to a control channel (CCH) assigned to the base station (BS), the message transmission channel (COCH) being a simplex transmission channel. The message transmission channels (COCH) are of a higher system hierarchy than the control channels (CCH), which renders it possible to enable access of several subscriber sets or subscriber sets of different services using only a small number of references.
533695
Eizenhofer Alfons
Schmidt Werner
Eizenhofer Alfons
Fetherstonhaugh & Co.
Koninklijke Philips Electronics N.v.
Schmidt Werner
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