Therefore, when HARQ and ARQ are applied to the LTE-based mobile satellite communication system, the inefficiency is caused by the long propagation delay of satellite environment. This paper proposes the interaction method between HARQ and ARQ for the decrease of inefficiency in the LTE-based ...
ARQ refers to Automatic Repeat Request i.e. if sender doesn’t receive Acknowledgement (ACK) before timeout, the receiver discards the bad packet and sender shall re-transmits the packet. ARQ procedure is illustrated below :
因此LTE使用多个并行的stop-and-wait process:当一个HARQ process在等待确认信息时,发送端可以使用另一个HARQ process来发送数据。如图1所示。 这些HARQ process共同组成了一个HARQ实体(HARQ entity),这个实体结合了停等协议,同时允许数据的连续传输。 图1:多个并行的HARQ process 每个HARQ process一次只处理一个TB(...
LOW LATENCY ARQHARQ OPERATING IN CARRIER AGGREGAT 优质文献 相似文献 参考文献Wireless backhaul for LTE - requirements, challenges and options Next generation broadband wireless technologies such as 3GPP long term evolution (LTE) and WiMax offer significantly higher data rates and require suitably... GK...
5G和LTE中的HARQ协议 LTE中有两种重传机制:MAC层的HARQ机制,以及RLC层的ARQ(只针对AM(aknowledgement mode确认模式)数据传输)机制。 HARQ: HARQ(HybridAutomatic Repeat reQuest混合自动重传请求),是一种结合FEC(ForwardError Correction,前向纠错)与ARQ(Automatic RepeatreQuest)方法的技术。
本文首先对HARQ合并算法进行描述,简单了解了HARQ的两种合并方式:IR合并和Chase合并;其次对HARQ的4种合并算法进行了仿真分析及研究,最后得出:在LTE-A下行链路系统中,不打孔等增益的合并算法的性能增益最优。 参考文献 [1] SAMRA H,Ding Zhi.A hybrid ARQ protocol using integrated channel equalization[J].IEEE Tran...
这个内容整体分为两部分,首先本贴了解HARQ基本知识及LTE HARQ,算作(上)部分,下一帖(下)部分总结NBIOT/CATM/5G NR的HARQ方面的设计。OK,let ‘s 继续 go~ HARQ: Hybrid Automatic Repeat Request (混合自动重传请求) HARQ = ARQ (ED, Error Detection) + FEC (Forward Error Correction) ...
1、20140307 (HARQ、HARQ process、HARQ information、同步/异步、自适应/非自适应、ACK/NACK反馈、上行HARQ(1)一、HARQ介绍 HARQ(Hybrid Automatic Repeat reQuest),混合式自动重传请求,是一种结合FEC(Forward Error Correction)与ARQ(Automatic Repeat reQuest)方法的技术。 FEC通过添加冗余信息,使得接收端能够纠正一...
9 RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook Encyclopedia AcronymDefinition HARQHybrid Arq HARQHigh Availability Resolution Queue HARQHybrid Automatic-Repeat-Request HARQHigh Availability Resolution Queue(Microsoft) ...