Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part
Patent
1989-08-04
1991-12-03
Kuntz, Curtis
Telecommunications
Transmitter and receiver at separate stations
Having measuring, testing, or monitoring of system or part
370 84, H04B 1700
Patent
active
050705369
ABSTRACT:
In an exemplary embodiment, a test signal is sent by a base station at a suitable point in a communications protocol. According to the evaluation of the test signal transmission, a relatively high data rate or a lower more conservative data rate is selected by a mobile unit for the transmission of a relatively lengthy data message. The test signal can be associated with a query from a mobile unit having a message to send, or with a contention polling message from the base. Such test signal can be transmitted at the lower data rate where its transmission characteristics (e.g. signal strength, jitter or quality of transmission of known information) can be used to predict probable feasibility of transmission at the higher data rate, but most preferably the test signal is part of a high data rate contention poll which may alternate with a low data rate contention poll.
REFERENCES:
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patent: 4763322 (1988-08-01), Eizenhofer
patent: 4789983 (1988-12-01), Acampora et al.
patent: 4803726 (1989-02-01), Levine et al.
patent: 4816820 (1989-03-01), Davis
patent: 4910794 (1990-03-01), Mahany
Mahany Ronald L.
Sojka Marvin L.
West Guy J.
Kuntz Curtis
Norand Corporation
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