Multiplex communications – Wide area network – Packet switching
Patent
1993-12-13
1996-05-14
Kizou, Hassan
Multiplex communications
Wide area network
Packet switching
370 941, 370106, 375356, 375366, 455 531, H04J 306, H04J 324
Patent
active
055175058
ABSTRACT:
In a wireless TDMA network a control module (CM) sends a time stamp relative to the beginning of its frame in a synchronization packet allowing each of a plurality of user modules (UM) to maintain synchronization relative to the CM. The CM uses a plurality of directional antennas and transmits the synchronization packets over each antenna over a predetermined number of frames. The UMs use a receive time stamp to identify the beginning of a received synchronization packet. The difference between the time stamps combined with a delay constant is used by the UMs to adjust time synchronization to the CM frame.
REFERENCES:
patent: 4129755 (1978-12-01), Murakami
patent: 4398289 (1983-08-01), Schoute
patent: 4528656 (1985-07-01), Morais
patent: 4636791 (1987-01-01), Burke et al.
patent: 4648090 (1987-03-01), Maddem et al.
patent: 4654654 (1987-03-01), Butler et al.
patent: 4672601 (1987-06-01), Ablay
patent: 4672658 (1987-06-01), Kavehrad et al.
patent: 4680755 (1987-07-01), Reames
patent: 4684941 (1987-08-01), Smith et al.
patent: 4736409 (1988-04-01), Hasegawa et al.
patent: 4754453 (1988-06-01), Eizenhofer
patent: 4755986 (1988-07-01), Hirata
patent: 4789983 (1988-12-01), Acampora et al.
patent: 4791629 (1988-12-01), Burns et al.
patent: 4807222 (1989-02-01), Amitay
patent: 4870408 (1989-09-01), Zdunek et al.
patent: 4881271 (1989-11-01), Yamauchi et al.
patent: 4890280 (1989-12-01), Hirata
patent: 4896319 (1990-01-01), Lidinsky et al.
patent: 4905231 (1990-02-01), Leung et al.
patent: 4922486 (1990-05-01), Lidinsky et al.
patent: 4933935 (1990-06-01), Adams
patent: 4941155 (1990-07-01), Chuang et al.
patent: 4961188 (1990-10-01), Lau
patent: 4969146 (1990-11-01), Twitty et al.
patent: 5173899 (1992-12-01), Ballance
patent: 5177740 (1993-01-01), Toy et al.
Advanced Peripherals, IEEE 802.3 Local Area Network Guide, pp. 7-12 by National Semiconductor Corporation.
Buchholz Dale R.
Chang Hungkun J.
Doss William K.
Farhangnia Farzad
Freeburg Thomas A.
Hillman Val Jean F.
Kizou Hassan
Motorola Inc.
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