LTE & 5G Retransmission Mechanisms: HARQ & RLC Explained
ウェブ2023年6月18日 · Similar to LTE, 5G also utilizes the Hybrid Automatic Repeat Request (HARQ) protocol for retransmission purposes. However, 5G introduces some enhancements and optimizations to improve the efficiency and performance of the retransmission process. Here are some key aspects of 5G retransmissions:
5G-NR MAC Layer Overview - Techlteworld
ウェブ2023年9月20日 · HARQ (Hybrid Automatic Repeat reQuest): The MAC layer handles HARQ processes, enabling retransmissions of data packets in case of errors. Logical Channels: It manages logical channels for control information exchange between the MAC layer and higher-layer protocols.
An Adaptive Hybrid Automatic Repeat Request (A-HARQ ...
ウェブ2023年10月3日 · In order to enhance communication reliability, the 3rd Generation Partnership Project (3GPP) introduced the Hybrid Automatic Repeat Request (HARQ) technology for both 4G and 5G systems.
What is the role of NR-PDSCH-PDU-CSI-SCG-HARQ in the 5G
ウェブ2023年10月4日 · Hybrid Automatic Repeat Request (HARQ): HARQ is a retransmission mechanism used in cellular communications to ensure the reliable reception of data. It allows for the retransmission of erroneously received packets. Physical Downlink Shared Channel (PDSCH):
Early HARQ using LLR Trend Analysis - IEEE Xplore
ウェブ2023年10月13日 · Abstract: One of the key usage scenarios in the scope of 5G is ultra-reliable and low-latency communications (URLLC) and HARQ is one of the inherent parts to make the service reliable and efficient. In this work, we proposed a
A dual-layer adaptive HARQ mechanism based on ...
ウェブ2024年4月23日 · This paper focuses on how to optimize the existing code-block group(CBG)-based HARQ design over the satellite-terrestrial link. We study two HARQ formats and the effects of feedback bits, and then propose a dual-layer adaptive
On AoI of Grant-Free Access With HARQ - IEEE Xplore
ウェブOn AoI of Grant-Free Access With HARQ Abstract: For mission-critical URLLC applications, timely status updates are essential. This paper investigates the age of information (AoI) of the three HARQ schemes specified in 5G R16, targeting to provide guidelines for future grant-free access design in 5G-Advanced and beyond.
Quad Ways for Polar Coded HARQ - IEEE Xplore
ウェブ2024年2月20日 · To improve error performance and reduce retransmissions, we developed four alternative HARQ-CC techniques. We utilize valuable information contained in received signals by introducing four LLR sequences to aid the decoder
Title: HARQ Delay Minimization of 5G Wireless Network with ...
ウェブ2023年5月4日 · 5G new radio (NR) technology is introduced to satisfy more demanding services. Ultra-Reliable Low Latency Communication (URLLC) requires very low delay compared with the previous techniques. This is hard to achieve when hybrid automatic repeat request (HARQ) is applied and especially when the feedback channel is …
5G NR Overview | SpringerLink
ウェブ2023年7月1日 · Douglas H. Morais. 309 Accesses. Abstract. In this chapter, key elements of 5G NR are reviewed with particular emphasis on enhanced mobile broadband (eMBB) as this is the feature that most impacts smartphone communication.
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