Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Patent
1996-04-12
1998-10-20
Kizou, Hassan
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
455422, 455517, 455561, H04B 7212, H04B 726, H04Q 736
Patent
active
058257640
ABSTRACT:
The area covered by a GSM base station can be increased in concentric rings of 35 km width by co-locating as many GSM transceivers as there are rings, the receivers of the transceivers being delayed by an amount equivalent to the round trip transit time for signals to transverse the inner rings. To enable idle mobiles to access the system each transceiver includes additional auxiliary receivers to receive access bursts on the frequencies of the other transceivers. Thus a mobile can access the system irrespective of the cell in which it is located even though it does not know in which cell it is located.
REFERENCES:
patent: 5483537 (1996-01-01), Dupuy
patent: 5509014 (1996-04-01), Utting
patent: 5544171 (1996-08-01), Godecker
patent: 5615215 (1997-03-01), Utting et al.
patent: 5668804 (1997-09-01), Suonvieri
Alcatel NV
Kizou Hassan
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