不同于LTE中的控制信道包括PCFICH、PHICH和PDCCH，在5G NR中，控制信道仅包括PDCCH（Physical Downlink Control Channel），负责物理层各种关键控制信息的传递，PDCCH中传递的下行控制信息（Downlink Control Information）主要包括：

2024年11月15日 · 本文详细介绍了5G新空口5GNR中PDCCH信道的作用、结构，包括控制信息的承载、PDCCH的时频资源调度（CORESET和SearchSpace）、以及DCI的格式和加扰规则。 特别关注了CORESET在时域和频域的灵活性以及搜索空间的分类。

PDCCH Transport Process. Following diagram illustrates the PDCCH Transport Process in a cellular communication system, detailing the sequence of steps involved in preparing and transmitting the PDCCH from gNB to UE

PDCCH承载的数据是 DCI –Downlink Control Information. DCI主要包含 PDSCH 和 PUSCH 传输资源调度信息，另外还有上行功控(PUSCH,PUCCH, SRS)指示,时隙格式指示，UE哪些PRB和OFDM符号不映射数据等等。

本文详细解释了5G中PDSCH的资源映射过程，包括时隙分配、DMRS的映射类型以及DCI在调度中的作用。 文章还讨论了物理下行共享信道的组成部分和上下行链路控制信息的处理流程。 5G 下行数据传输主要涉及PDSCH（物理下行共享信道）的使用。 PDSCH主要用于传输下行数据，其 资源映射 和 时隙分配 是关键的传输过程。 资源映射是将数据或信号映射到特定的时频资源上的过程。 时隙分配是为了确定PDSCH的时域资源位置。 在5G下行 数据传输 中，采用基于 DMRS …

A physical downlink control channel consists of one or more control-channel elements (CCEs) as indicated in Table 7.3.2.1-1. I.e., the aggregation level equals number of CCEs per PDCCH. Higher level means lower coding rate, is more suitable for UEs with poor channel conditions. Table 7.3.2.1-1: Supported PDCCH aggregation levels.

2023年12月7日 · In 5G NR (New Radio), the Physical Downlink Control Channel (PDCCH) plays a critical role in the control of downlink resource allocations, scheduling, and signaling for UEs (User Equipment). It is responsible for carrying DCI (Downlink Control Information), which informs UEs about the configuration of the PDSCH (Physical Downlink Shared

An overview of the 5G New Radio (NR) physical downlink control channel (PDCCH) design of 3GPP Release 15 is presented and performance enhancements are proposed. A novel PDCCH hash function is shown to outperform the legacy hash function by about one order of magnitude in terms of inter-user blocking probability while maintaining the frequency ...

This page covers 5G NR PDCCH function, 5G NR PDCCH contents, mapping and physical layer processing of 5G NR PDCCH. Following channels are supported by 5G NR wireless system. Downlink channels: PDSCH (DL shared channel), PBCH (Broadcast channel), PDCCH (DL control channel) Uplink channels: PRACH (Random …

The physical downlink control channel (PDCCH) in NR carries Downlink Control Information (DCI). Understanding how PDCCH operates is key to developing a good understanding of how information is communicated over NR. This paper provides an overview of the 5G NR PDCCH by describing its physical layer