Telecommunications – Carrier wave repeater or relay system – Two separate way transmission
Patent
1992-03-31
1996-08-20
Eisenzopf, Reinhard J.
Telecommunications
Carrier wave repeater or relay system
Two separate way transmission
455 17, 455 561, H04B 7155
Patent
active
055488030
ABSTRACT:
A booster usable in a radio telephone communication system can amplify and repeat both analog and digital representations of communications. The unit monitors control channel communications going to subscriber units and reverse control channel responses from subscriber units. When a digital traffic channel assignment is detected, the booster directs the subscriber unit to a different traffic channel pair. The booster communicates with the subscriber unit on the traffic channel pair assigned by it to the subscriber unit. The booster communicates with the cell site on the channel pair assigned by the cell site. Digitized communications from the subscriber unit are amplified only during the associated time intervals. Hence, other communications in different time intervals on the same message channel are not effected. Analog conversations and other message channels can be simultaneously boosted and retransmitted.
REFERENCES:
patent: 4941200 (1990-07-01), Leslie et al.
patent: 5175871 (1992-12-01), Kunkel
patent: 5276686 (1994-01-01), Ito
Spragins et al "Telecommunications Protocols & Design" Addison-Wesley Publishing Company, Inc, pp. 60-63, 631, 1991.
EIA/TIA--PN2759 document entitled "Cellular System Dual-Mode Mobile Station--Base Station Compatibility Standard", Unofficial Letter--Ballot Version, Aug. 1991, pp. 1-272.
Eisenzopf Reinhard J.
Le Thanh
Orion Industries, Inc.
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