TDMA radio network with provision for a group call channel for d

Details TDMA radio network with provision for a group call channel for d TDMA radio network with provision for a group call channel for d

1992-12-10

1995-04-04

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

455 341, 455 561, 370 953, H04B 700

Patent

active

054045711

ABSTRACT:
The radio transmission system includes at least one base station (RA or RB) and at least one satellite station (M1, . . . , M7) situated in a coverage zone (ZA, ZB) of the base station in which the base station can send information to a satellite station by a down transmission channel (F.sub.RAM), while one transmission channel is used in which the satellite stations are authorized to transmit. For establishing a group call at the request of a satellite station, the base station allocates a group call channel to the requesting station so that exchange of information can take place directly between the mobile stations which are included in the group call.

REFERENCES:
patent: 4817190 (1989-03-01), Comroe et al.
patent: 5014345 (1991-05-01), Comroe et al.
patent: 5117501 (1992-05-01), Childress et al.
M. Coudreuse, G. Delavoipiere, G. Duysens and B. Fino, Mobile Trunked Radio-communications Systems TN 10-TN100-TN200, Commutation & Transmission No. 2, 1989, pp. 39-50.

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