Study of Random Access Scheme and Its Resource Adaptive Allocation in NB-IoT Network

碩士 === 國立中央大學 === 通訊工程學系 === 106 === 3rd Generation Partnership Project (3GPP) proposed NB-IoT for IoT application in Release 13. It improves the scheduling for uplink from original LTE which determines the length of NPUSCH (Narrowband Physical Uplink Shared Channel) by the number of subcarriers and...

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Main Authors: Guan-Yi Xue, 薛貫一
Other Authors: Yen-Wen Chen
Format: Others
Language:zh-TW
Published: 2018
Online Access:http://ndltd.ncl.edu.tw/handle/gnrs29
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spelling ndltd-TW-106NCU056500392019-09-12T03:37:43Z http://ndltd.ncl.edu.tw/handle/gnrs29 Study of Random Access Scheme and Its Resource Adaptive Allocation in NB-IoT Network NB-IoT隨機存取方法及其資源調適性配置之研究 Guan-Yi Xue 薛貫一 碩士 國立中央大學 通訊工程學系 106 3rd Generation Partnership Project (3GPP) proposed NB-IoT for IoT application in Release 13. It improves the scheduling for uplink from original LTE which determines the length of NPUSCH (Narrowband Physical Uplink Shared Channel) by the number of subcarriers and slots in NB-IoT. This design supports the IoT scenario which have the feature of massive devices and short data transmission. In Release 14, 3GPP also proposes that random access procedures can be supported in non-anchor carriers which can ease the congestion if all the UE used random access resource by anchor carrier. However, if eNB schedules NPRACH (Narrowband Physical Random Access Channel) in non-anchor carrier then it also compresses the resource that NPUSCH can use. So how to use non-anchor carrier resource efficiently would be an important issue. In this paper, we propose an algorithm which dynamic allocates non-anchor carrier resource adaptive according to the collision report send by UE. Finally, we try to strike a balance between keeping the random access successful rate and saving non-anchor carrier resource as far as possible. Yen-Wen Chen 陳彥文 2018 學位論文 ; thesis 84 zh-TW
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description 碩士 === 國立中央大學 === 通訊工程學系 === 106 === 3rd Generation Partnership Project (3GPP) proposed NB-IoT for IoT application in Release 13. It improves the scheduling for uplink from original LTE which determines the length of NPUSCH (Narrowband Physical Uplink Shared Channel) by the number of subcarriers and slots in NB-IoT. This design supports the IoT scenario which have the feature of massive devices and short data transmission. In Release 14, 3GPP also proposes that random access procedures can be supported in non-anchor carriers which can ease the congestion if all the UE used random access resource by anchor carrier. However, if eNB schedules NPRACH (Narrowband Physical Random Access Channel) in non-anchor carrier then it also compresses the resource that NPUSCH can use. So how to use non-anchor carrier resource efficiently would be an important issue. In this paper, we propose an algorithm which dynamic allocates non-anchor carrier resource adaptive according to the collision report send by UE. Finally, we try to strike a balance between keeping the random access successful rate and saving non-anchor carrier resource as far as possible.
author2 Yen-Wen Chen
author_facet Yen-Wen Chen
Guan-Yi Xue
薛貫一
author Guan-Yi Xue
薛貫一
spellingShingle Guan-Yi Xue
薛貫一
Study of Random Access Scheme and Its Resource Adaptive Allocation in NB-IoT Network
author_sort Guan-Yi Xue
title Study of Random Access Scheme and Its Resource Adaptive Allocation in NB-IoT Network
title_short Study of Random Access Scheme and Its Resource Adaptive Allocation in NB-IoT Network
title_full Study of Random Access Scheme and Its Resource Adaptive Allocation in NB-IoT Network
title_fullStr Study of Random Access Scheme and Its Resource Adaptive Allocation in NB-IoT Network
title_full_unstemmed Study of Random Access Scheme and Its Resource Adaptive Allocation in NB-IoT Network
title_sort study of random access scheme and its resource adaptive allocation in nb-iot network
publishDate 2018
url http://ndltd.ncl.edu.tw/handle/gnrs29
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