Enhanced Packet Access Scheme for IMT-2000/UMTS Random Access Channel

Young-Sam KIM  Jun-Kui AHN  Kyoo-Jin HAN  Keum-Chan WHANG  

IEICE TRANSACTIONS on Communications   Vol.E85-B   No.12   pp.2946-2949
Publication Date: 2002/12/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technology
IMT-2000/UMTS,  RACH,  packet access scheme,  interference characteristics,  

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We propose an enhanced packet access scheme for IMT-2000/UMTS random access channel (RACH). In the proposed scheme, 2-level preamble detection threshold and 2-level message transmission power are used to mitigate the power imbalance in RACH. Simulation results demonstrate that the proposed scheme improves the interference characteristics of the conventional RACH and makes wider range of the detection threshold available.