Multiplex communications – Wide area network – Packet switching
Patent
1990-04-11
1991-08-13
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 853, 370 942, 370 941, 371 34, H04J 302
Patent
active
050401750
ABSTRACT:
A wireless local area network (10) includes a plurality of stations (12) adapted to transmit and receive message packets via a distribution system (30). In a time division multiplexing embodiment the network (10) operates using successive timing frames (FR1, FR2, etc.) each consisting of three timing intervals (T1, T2, T3). During the first timing interval (T1) the distribution system (30) normally transmits synchronizing packets (HBT), to which a station (12) desiring to transmit responds by transmitting an information packet during the next second timing interval (T2). During the subsequent first timing interval (T1), the distribution system (30) retransmits the received information packet. Any transmitting station (12) which detects an information packet mismatch transmits a collision reporting code (CDT) during the next third timing interval (T3) to which the distribution system (30) responds by transmitting a collision acknowledgement code (CAKT) to all the stations (12) thereby aborting information transmission. A frequency division multiplexing embodiment is also disclosed.
REFERENCES:
patent: 4271513 (1981-06-01), Maejima et al.
patent: 4347609 (1982-08-01), Fukuyama et al.
patent: 4573154 (1986-02-01), Nakata et al.
patent: 4725834 (1988-02-01), Chang et al.
patent: 4755990 (1988-07-01), Bohler et al.
patent: 4789983 (1988-12-01), Acampora et al.
patent: 4839892 (1989-06-01), Sasaki
patent: 4872205 (1989-10-01), Smith
Masleid Michael A.
Tuch Bruce T.
Hawk Jr. Wilbert
Inland Steel Company
Jewett Stephen F.
NCR Corporation
Olms Douglas W.
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