Multiplex communications – Duplex – Communication over free space
Reexamination Certificate
2008-01-29
2008-01-29
Pezzlo, John (Department: 2616)
Multiplex communications
Duplex
Communication over free space
C370S329000, C370S347000
Reexamination Certificate
active
07324465
ABSTRACT:
The present invention relates to Random Access Channel (RACH) access apparatus for mobile satellite communication system and method therefor. The method for accessing random access channel (RACH) on satellite system, random access channel (RACH) carrying message from a plurality of mobile stations to the satellite system, the method includes the steps of: receiving preamble and the message, the message successively transmitted with the preamble from the plurality of mobile stations; and transmitting acquisition response signal corresponding to the preamble or the message to the plurality of mobile stations. Accordingly, success of packet reception of satellite system is improved and transmission delay is reduced.
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Kim Soo-Young
Lee Ho-Jin
Lim Kwang-Jae
You Moon-Hee
Blakely & Sokoloff, Taylor & Zafman
Electronics and Telecommunications Research Institute
Pezzlo John
LandOfFree
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