Method of reducing access time to UTRAN in UMTS

Details Method of reducing access time to UTRAN in UMTS Method of reducing access time to UTRAN in UMTS

2007-11-27

2007-11-27

Kizou, Hassan (Department: 2616)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S348000

Reexamination Certificate

active

10314772

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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