Multiplex communications – Communication over free space – Repeater
Reexamination Certificate
2001-12-26
2008-03-11
To, Doris H. (Department: 2616)
Multiplex communications
Communication over free space
Repeater
C370S328000, C455S522000
Reexamination Certificate
active
07342898
ABSTRACT:
Disclosed is a system and method for determining a transmission power in a radio packet data transmission system on the basis of the transmission power at the previous packet transmission. A preferred method includes: a step for calculating the transmission power; a step for transmitting a Preamble to the base station with the calculated transmission power; a step for receiving a channel occupying signal from the base station as a response to the preamble; and a step for transmitting packet data after the channel occupying signal is transmitted and ending the packet data transmission process if the transmission is successfully made. The system and method advantageously reduce the amount of time required to transmit subsequent packets of data at more optimal power levels.
REFERENCES:
patent: 6058307 (2000-05-01), Garner
patent: 6243580 (2001-06-01), Garner
patent: 6259724 (2001-07-01), Esmailzadeh
patent: 6498785 (2002-12-01), Derryberry et al.
patent: 6542739 (2003-04-01), Garner
patent: 6628956 (2003-09-01), Bark et al.
patent: 2002/0077138 (2002-06-01), Bark et al.
patent: 1171663 (1998-01-01), None
Chinese Office Action (Jun. 10, 2005).
Grey Christopher
Ked & Associates LLP
LG Electronics Inc.
To Doris H.
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