Method and apparatus for performing search acquisition in a multi-carrier communication system
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United States of America Patent
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Oct 15, 2002
Grant Date -
N/A
app pub date -
Dec 22, 1999
filing date -
Dec 22, 1999
priority date (Note) -
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Abstract
A method and apparatus to search for a traffic channel in a multi-carrier spread spectrum communication network. In this first embodiment, all three pilot signals are transmitted with equal power from the base station. The remote station can noncoherently combine the received energy of all three-pilots on a time hypothesis. This will reduce the value of M (the noncoherent accumulation time) by a factor of three. Thus the mean acquisition time is shortened by a factor of three with the same probability of detection and false alarm as a signal carrier (1.times.) system, if each pilot is equivalent to a 1.times. pilot in power. Note that the number of operations (i.e., complexity) is the same as that for a 1.times. system, but the time elapsed is shortened by a factor of 3.
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