<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[夫子喵的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/hoursk</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; hoursk]]></copyright><item><title><![CDATA[5G NR PDCCH之信号调制]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/151296786</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/151296786</guid><author>hoursk</author><pubDate>Sun, 07 Sep 2025 23:13:16 +0800</pubDate><description><![CDATA[PDCCH（Physical Downlink Control Channel，物理下行控制信道）主要用于传输DCI（Downlink Control Information，下行控制信息），用于通知UE资源分配，调度信息、系统信息等，可指示UE（User Equipment，用户设备）进行上行或下行数据的传输。且由于在搜索阶段，UE无法知晓发给它的DCI格式、聚合等级及在PDCCH上的位置等，因此，UE须对所有可能的候选位置和所有可能的DCI格式、聚合等级组合逐一尝试解码。PDCCH处理流程如下图所示。]]></description><category></category></item><item><title><![CDATA[5G NR PDCCH之数据加扰]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/150472902</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/150472902</guid><author>hoursk</author><pubDate>Mon, 18 Aug 2025 00:08:34 +0800</pubDate><description><![CDATA[本节主要介绍PDCCH处理中的数据加扰过程。]]></description><category></category></item><item><title><![CDATA[5G NR PDCCH之速率匹配]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/150472377</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/150472377</guid><author>hoursk</author><pubDate>Sun, 17 Aug 2025 21:06:10 +0800</pubDate><description><![CDATA[本节主要介绍PDCCH处理中的速率匹配过程。]]></description><category></category></item><item><title><![CDATA[5G NR PDCCH之信道编码]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/149486163</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/149486163</guid><author>hoursk</author><pubDate>Sun, 20 Jul 2025 18:43:52 +0800</pubDate><description><![CDATA[本节主要介绍PDCCH处理中的POLAR信道编码过程。]]></description><category></category></item><item><title><![CDATA[5G NR PDCCH之CRC处理]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/149480092</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/149480092</guid><author>hoursk</author><pubDate>Sun, 20 Jul 2025 17:43:34 +0800</pubDate><description><![CDATA[本节主要介绍PDCCH处理中的循环冗余校验（Cyclic Redundancy CheckCRC）过程。]]></description><category></category></item><item><title><![CDATA[5G NR PDCCH之处理流程]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/149315427</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/149315427</guid><author>hoursk</author><pubDate>Sun, 13 Jul 2025 22:03:59 +0800</pubDate><description><![CDATA[PDCCH（Physical Downlink Control Channel，物理下行控制信道）主要用于传输DCI（Downlink Control Information，下行控制信息），用于通知UE资源分配，调度信息、系统信息等，可指示UE（User Equipment，用户设备）进行上行或下行数据的传输。且由于在搜索阶段，UE无法知晓发给它的DCI格式、聚合等级及在PDCCH上的位置等，因此，UE须对所有可能的候选位置和所有可能的DCI格式、聚合等级组合逐一尝试解码。PDCCH处理流程如下图所示。]]></description><category></category></item><item><title><![CDATA[5G NR PDCCH之聚合等级与盲检]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/149143039</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/149143039</guid><author>hoursk</author><pubDate>Mon, 07 Jul 2025 00:40:23 +0800</pubDate><description><![CDATA[本节主要介绍5G NR PDCCH中聚合等级与盲检（盲解码）的原理。]]></description><category></category></item><item><title><![CDATA[5G NR PDCCH之CORESET CCE索引]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/149142606</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/149142606</guid><author>hoursk</author><pubDate>Sun, 06 Jul 2025 00:34:10 +0800</pubDate><description><![CDATA[本节主要介绍5G NR PDCCH中CORESET的CCE索引的计算。]]></description><category></category></item><item><title><![CDATA[5G NR PDCCH之CORESET交织映射]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/148659935</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/148659935</guid><author>hoursk</author><pubDate>Sun, 15 Jun 2025 20:02:14 +0800</pubDate><description><![CDATA[本节主要介绍5G NR PDCCH中CORESET的交织（interleaved）/非交织映射。]]></description><category></category></item><item><title><![CDATA[5G NR PDCCH概述]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/148512403</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/148512403</guid><author>hoursk</author><pubDate>Sun, 08 Jun 2025 20:33:39 +0800</pubDate><description><![CDATA[PDCCH（Physical Downlink Control Channel，物理下行控制信道）通过传输DCI（Downlink Control Information，下行控制信息）用于通知UE资源分配，调度信息、系统信息等，可指示UE（User Equipment，用户设备）进行上行或下行数据的传输。CORESET：定义了PDCCH中用于传输DCI（Downlink Control Information，下行控制信息）的时频资源集合；]]></description><category></category></item><item><title><![CDATA[5G NR SSB实例]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/148242033</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/148242033</guid><author>hoursk</author><pubDate>Tue, 03 Jun 2025 23:52:06 +0800</pubDate><description><![CDATA[SSB的时域传输是指在一定周期内传输多个SSB的集合，即SSB突发集（SSB Burst Set）。在高频段，SSB突发集内多个SSB可用于波束扫描，增强小区覆盖；在低频段，UE可通过接收一个SSB突发集中的多个SSB进行信号合并，提高SSB解调能力。其中，SSB突发集传输间隔可选择5ms、10ms、20ms、40ms、80ms、160ms共6种，默认的传输间隔20ms。此外，SSB中的MIB信息每隔80ms更新一次（即在80ms内，尽管SSB突发集多次传输，但PBCH内容保持不变）。]]></description><category></category></item><item><title><![CDATA[5G NR 帧结构]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/148350748</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/148350748</guid><author>hoursk</author><pubDate>Sat, 31 May 2025 23:52:04 +0800</pubDate><description><![CDATA[本节主要介绍5G NR中的帧结构[38.211-4.3]。5G帧结构（Frame Structure）为时域结构。其设计比其4G LTE更为灵活，这种灵活性使5G能够根据应用需求（如增强移动宽带eMBB，超高可靠低时延通信URLLC）进行调整，同时支持差异化的应用场景，提高了5G的利用效率与响应能力。具体而言，5G帧结构是基于时隙和OFDM符号设计的，且5G网络能够根据服务需求动态调整各时隙持续时长。]]></description><category></category></item><item><title><![CDATA[5G NR PBCH之DMRS信号生成]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/148213667</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/148213667</guid><author>hoursk</author><pubDate>Sun, 25 May 2025 23:28:19 +0800</pubDate><description><![CDATA[DMRS是终端(UE, user equipment)用于估计PBCH信道的参考信号，并根据评估所得信息UE进行PBCH解调并随后解码主信息块，其核心功能是提升数据传输的准确性和可靠性。显然，UE搜索完PSS和SSS之后，将据此计算得到物理小区标识(PCI，Physical Cell Identity)，接下来需要解调PBCH。由于5G NR中没有小区专用参考信号（CRS，Cell-specific Reference Signal），因此要解调PBCH信，UE须先获得PBCH DMRS的位置。]]></description><category></category></item><item><title><![CDATA[5G NR PBCH之信号调制]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/148197729</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/148197729</guid><author>hoursk</author><pubDate>Sat, 24 May 2025 23:29:55 +0800</pubDate><description><![CDATA[本节主要介绍PBCH中信号调制的过程，本过程在物理层实现。]]></description><category></category></item><item><title><![CDATA[5G NR PBCH之第二次加扰]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/148195937</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/148195937</guid><author>hoursk</author><pubDate>Sat, 24 May 2025 21:22:51 +0800</pubDate><description><![CDATA[本节主要介绍PBCH中第二次加扰的过程，本过程在物理层实现。]]></description><category></category></item><item><title><![CDATA[5G NR PBCH之速率匹配]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/148077038</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/148077038</guid><author>hoursk</author><pubDate>Mon, 19 May 2025 23:50:06 +0800</pubDate><description><![CDATA[本节主要介绍PBCH中速率匹配过程。]]></description><category></category></item><item><title><![CDATA[5G NR PBCH之信道编码]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/148018734</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/148018734</guid><author>hoursk</author><pubDate>Fri, 16 May 2025 23:50:49 +0800</pubDate><description><![CDATA[本节主要介绍PBCH中信道编码过程。]]></description><category></category></item><item><title><![CDATA[5G NR PBCH之CRC处理]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/147964929</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/147964929</guid><author>hoursk</author><pubDate>Thu, 15 May 2025 23:44:22 +0800</pubDate><description><![CDATA[本节主要介绍PBCH中循环冗余校验 (CRC，Cyclic Redundancy Check)的处理过程。]]></description><category></category></item><item><title><![CDATA[5G NR PBCH之第一次加扰]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/147934604</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/147934604</guid><author>hoursk</author><pubDate>Wed, 14 May 2025 22:48:14 +0800</pubDate><description><![CDATA[本节主要介绍PBCH中第一次加扰的过程。]]></description><category></category></item><item><title><![CDATA[5G NR PBCH之PBCH负载生成]]></title><link>https://blog.youkuaiyun.com/hoursk/article/details/147906790</link><guid>https://blog.youkuaiyun.com/hoursk/article/details/147906790</guid><author>hoursk</author><pubDate>Tue, 13 May 2025 21:20:54 +0800</pubDate><description><![CDATA[本节主要介绍PBCH中PBCH负载的生成过程。]]></description><category></category></item></channel></rss>