Telecommunications – Transmitter and receiver at separate stations
Patent
1991-06-06
1993-08-24
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at separate stations
455 542, 455 561, 455 62, 379 60, 379 63, H04Q 700, H04Q 902, H04B 1502
Patent
active
052396762
ABSTRACT:
The intra-cell call hand-over technique of this invention is characterized by the use of channel information from both base station and subscriber terminal in determining a standby radio traffic channel upon which to hand over a call. Communication between the base station and subscriber terminal is carried out on an inband or associated signalling channel for the selection of the standby traffic channel. The standby radio channel is the channel, which, of a set of channels under consideration by the subscriber terminal, contains the least amount of interference as measured at the subscriber terminal. The set of channels under consideration by the subscriber terminal is a subset of the entire set of channels allocated to the service. This subset is comprised of those channels having little interference as measured by the base station. The call hand-over technique thereby assures that calls proceed on channels containing little interference from the viewpoints of both base station and subscriber terminal.
REFERENCES:
patent: 4475010 (1984-10-01), Huensch et al.
patent: 4771448 (1988-09-01), Koohgoli et al.
patent: 4916728 (1990-04-01), Blair
patent: 5038399 (1991-08-01), Bruckert
patent: 5109527 (1992-04-01), Akerberg
patent: 5134709 (1992-07-01), Bi et al.
Plett Gregory L.
Sandler Howard M.
Steer David G.
Strawczynski Leo
Charouel Lisa
Eisenzopf Reinhard J.
Fortin Jean-Pierre
Northern Telecom Limited
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