Multiplex communications – Wide area network – Packet switching
Patent
1978-10-04
1981-02-24
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370111, 370 97, H04J 306
Patent
active
042529999
ABSTRACT:
The present invention relates to a technique for creating dedicated in-band, two-way, signaling channels between a master signaling ground station and each remote ground station of a satellite communication system using either an area coverage beam or a plurality of fixed and/or scanning spot beams. In the present technique, separate bursts of information within a superframe sequence are dedicated for only providing signaling information between the master signaling station and each ground station of the system. Each ground station, in turn, is dedicated a separate burst of information for transmitting only signaling information back to the master signaling station. Coarse ranging is performed by triangulation methods and then each ground station transmits a unique word within the predetermined time period of its dedicated signaling burst to the master signaling station. The master signaling station then transmits synchronization correction information back to each ground station in its dedicated signaling burst.
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"A Scanning Spot-Beam Satellite System", by Reudink et al., The Bell System Technical Journal, vol. 56, No. 8, Oct. 1977, pp. 1549-1560.
"Burst Synchronization for Domestic TDMA Systems", by Samejima, et al., Review of the Electrical Communication Labs. vol. 26, Nos. 1-2, Jan.-Feb., 1978; pp. 118-126.
Acampora Anthony
Langseth Rollin E.
Reudink Douglas O.
Yeh Yu S.
Bell Telephone Laboratories Incorporated
Olms Douglas W.
Pfeifle Erwin W.
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