减少 PRACH时 域上的干扰PRACH Freque ncy Offset0全网统一设置般城区及郊区:参数配置规划说明PRACH FormatC2一般城区建议小区半径配置为Zero Correlati onZon e(Ncs)0建议小区半径配置与 format相 当Root Seque nee In dex0小区间隔2,复用度为64小区:PRACHCo ngfigurati onIn dex202C2格式下不支持子帧4单独使用 ...
_?■#■? L^Pl^Rq L ^Fig^i 1*1 S3i 4M m It llfiMI 1R “2B月23 五、原因分析检查5G小区的PRACH配置,发现prachConfigurationlndex 配置为97 , 规范对该PRACH信道的配置描述如下,可以看到该 PRACH在子帧7发送。 PRACH Preannble format ?kre mcd^ = y Subfraine number Starting symbol Number of ...
5G NR 随机接入--PRACH印度阿三17 >《开发》2020.04.02 关注 高层配置 SIB1> servingCellConfigCommon > uplinkConfigCommon >initialUplinkBWP > rach-ConfigCommonpreamble format 前导码格式见38.211-Table6.3.3.1-1和38.211-Table6.3.3.1-2。由高层配置参数prach-ConfiguratinIndex决定配置给UE的前导码格式,...
Set the parameters for the PRACH, taking into account that the numerology of the PRACH can be different from that of the carrier. This example sets the PRACH configuration corresponding to a PRACH short preamble format B2 with 15 kHz subcarrier spacing. You can also set additional PRACH paramet...
LRA - Displays the LRA, which is determined by the preamble Format in accordance with Table 6.3.3.1-1 and Table 6.3.3.1-2 of the 3GPP TS 38.211 standard.In most cases, the LRA parameter is grayed out and not selectable because its value is determined by PRACH Numerology and whether Root...
The UE receives a physical downlink control channel (PDCCH) order from the LTE eNB or a 5G PDCCH (xPDCCH) order from the 5G eNB for triggering a 5G PRACH (xPRACH) transmission in the 5G eNB. The UE transmits xPRACH on a resource indicated in the received PDCCH in the LTE eNB or ...
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上一篇文章对PRACH信道的功能及preamble format进行了简要介绍,本文将深入分析Preamble信号的生成过程以及PRACH在时频资源上的分布情况。1、Preamble信号的生成 NR的preamble sequence与LTE类似,均基于Zadoff Chu序列生成,其基本生成过程如图1和图2所示:具体生成公式可参考协议TS38211-6.3.3.1,其中...
5G NR 随机接入RACH流程(5)-- Msg2 终端向基站发送了Msg1,很自然期望得到基站的Msg2(RAR)响应。本文主要针对Msg2讲两个重要的问题:1)终端如何接收Msg2;2)Msg2里面有什么 终端如何接收Msg2 In response to a PRACH transmission, a UE attempts to detect a DCI format 1_0 with CRC scrambled by acorre...
RAN 3.0版本,基站只支持哪些PRACH格式?() A、12RB B、Format0 C、周期发送 D、FormatC2 点击查看答案 第10题 5GNR中若PRACH为短序列,在中低速场景,零相关配置为11,对应的Ncs为23,此时单小区需要多少个逻辑根序列。() A.10 B.9 C.12 D.11 点击查看答案...