Method of reducing access time to UTRAN in UMTS
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United States of America Patent
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Nov 27, 2007
Grant Date -
Jul 24, 2003
app pub date -
Dec 9, 2002
filing date -
Dec 10, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of reducing access time to a UTRAN in UMTS. Upon receipt of a preamble signature from a UE, the UTRAN determines whether the preamble signature is in current use. If the preamble signature corresponds to an available RACH, the UTRAN transmits a positive AICH to the UE. If the preamble signature corresponds to an RACH in current use, the UTRAN determines whether there is a signature corresponding to an available RACH. If all signatures are in use, the UTRAN transmits a negative AICH to the UE.
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