首页> 外国专利> RANDOM ACCESS PREAMBLE FOR CELLULAR PHONE SYSTEMS WITH MULTIPLE ZADOFF-CHU SEQUENCES

RANDOM ACCESS PREAMBLE FOR CELLULAR PHONE SYSTEMS WITH MULTIPLE ZADOFF-CHU SEQUENCES

机译:具有多个ZADOFF-CHU序列的蜂窝电话系统的随机访问权限

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.
机译:一种蜂窝电话系统,其中随机接入信道突发具有包括两个Zadoff-Chu序列的前同步码,以减轻多普勒频偏的影响。在基站接收到随机接入信道突发时,对从接收到的突发的前同步码恢复的两个序列进行除法以提供商序列。对于一些实施例,基站将商序列与Zadoff-Chu序列相关以识别发送了随机接入信道突发的用户设备。描述和要求保护其他实施例。

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