Method and apparatus for performing an access procedure
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United States of America Patent
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Aug 30, 2011
Grant Date -
Nov 10, 2005
app pub date -
Jun 29, 2005
filing date -
Jun 27, 1996
priority date (Note) -
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Abstract
A base station for controlling transmission power during the establishment of a communication channel utilizes the reception of a short code during initial power ramp-up. The short code is a sequence for detection by the base station which has a much shorter period than a conventional access code. The ramp-up starts from a power level that is lower than the required power level for detection by the base station. The power of the short code is quickly increased until the signal is detected by the base station. Once the base station detects the short code, it transmits an indication that the short code has been detected.
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