RANDOM ACCESS PREAMBLE FOR CELLULAR PHONE SYSTEMS WITH MULTIPLE ZADOFF-CHU SEQUENCES
摘要
A cellular phone system where a random access channel burst has a preamble comprising two Zadoff-Chu sequences to mitigate the effects of Doppler Frequency Offset. Upon reception of a random access channel burst by a base station, division is applied to the two sequences recovered from the preamble of the received burst to provide a quotient sequence. For some embodiments, the base station correlates the quotient sequence with a Zadoff- Chu sequence to identify the user equipment that transmitted the random access channel burst. Other embodiments are described and claimed.
申请公布号
WO2009037626(A2)
申请公布日期
2009.03.26
申请号
WO2008IB53722
申请日期
2008.09.15
申请人
ST-NXP WIRELESS (HOLDING) AG;ZHANG, XIAOBO;MA, NI;WU, GANG