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RANDOM ACCESS PREAMBLE FOR CELLULAR PHONE SYSTEMS WITH MULTIPLE ZADOFF-CHU SEQUENCES
RANDOM ACCESS PREAMBLE FOR CELLULAR PHONE SYSTEMS WITH MULTIPLE ZADOFF-CHU SEQUENCES
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机译:具有多个ZADOFF-CHU序列的蜂窝电话系统的随机访问权限
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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.
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