Multiplex communications – Duplex – Communication over free space
Patent
1997-12-19
2000-08-08
Hsu, Alpus H.
Multiplex communications
Duplex
Communication over free space
370321, 370337, 455 111, H04J 300, H04B 7212, H04B 715
Patent
active
061011711
ABSTRACT:
A method and system that enables a wireless repeater within the personal handy phone system to switch the communication mode of each slot within its communication interface. Specifically, the repeater is able to function as a cell station while communicating with a portable station and function as a portable station while communicating with a cell station. For instance, when the repeater communicates with a cell station, it switches the communication mode of a desired slot within its communication interface into portable station communication mode. Conversely, when the repeater communicates with a portable station, it switches a desired slot within its communication interface into cell station communication mode. Since a repeater implemented with the present invention is able to switch the communication mode of each slot within its communication interface, the amount of internal circuitry required within the repeater is significantly reduced. Specifically, the internal circuitry implemented within an embodiment of a wireless repeater in accordance with the present invention includes a radio circuit and a baseband circuit. The present invention enables the significantly reduced internal circuitry of the repeater to perform the dual function of communicating with cell stations and portable stations using a single communication interface. As a result of significantly reducing the internal circuitry of the repeater, it is less expensive to manufacture and requires less power to operate.
REFERENCES:
Association of Radio Industries and Businesses (ARIB), "Personal Handy Phone System ARIB Standard", version 2 RCR STD-28, Dec. 26, 1995.
Ministry of Posts and Telecommunications, Japan, "Personal Handy-Phone System (PHS) Guidebook", Japan.
Archambaud Denis
Feyfant Patrick
Gaglione Philippe
Martin Varenka
Weigelt Oliver
Hsu Alpus H.
Qureshi Afsar M.
VSLI Technology, Inc.
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