为了满足不同业务对5G网络差异化的需求,5G网络采用了网络切片技术,将网络资源灵活分配,实现网络端到端或某一部分资源的切分,包括终端、接入网和核心网的切分。每个切片的能力按业务需求进行切分,在同一网络基础设施上,切分出多个具备...为了满足不同业务对5G网络差异化的需求,5G网络采用了网络切片技术,将网络资源灵活分配,实现网络端到端或某一部分资源的切分,包括终端、接入网和核心网的切分。每个切片的能力按业务需求进行切分,在同一网络基础设施上,切分出多个具备不同能力的虚拟子网。根据《3GPP TS 23.501-System architecture for the 5G System (5GS)Stage 2 (Release 18)》规范,定义了六大类(SST字段分类)切片,分别是e MBB(Enhanced Mobile Broadband,增强移动宽带)切片、URLLC(Ultra-reliable and Low Latency Communications,高可靠低时延通信)切片、MIoT(Massive IoT,大规模物联网)切片、V2X(Vehicle To Everything,车联网)切片、HMTC(High-Performance Machine-Type Communications,高性能机器类通信)切片、HDLLC(High Data rate and Low Latency Communications,高数据速率低时延通信)切片。对切片技术进行了介绍,同时,对特定场景的切片监测系统进行了研究,给出了一种切片监测系统的实现方案,该系统可帮助提高特定场景切片网络安全性和可靠性。展开更多
To manage and orchestrate Network Slices (NSs) for 5G Core (5GC), the MANO (MANagement and Orchestration) framework is proposed by European Telecommunications Standard Institute (ETSI). In most research testbeds, MANO...To manage and orchestrate Network Slices (NSs) for 5G Core (5GC), the MANO (MANagement and Orchestration) framework is proposed by European Telecommunications Standard Institute (ETSI). In most research testbeds, MANO systems such as Tacker, OSM and ONAP are used to initiate network slices. However, this doesn’t comply with the 3GPP 5G standards as MANO should only be responsible for dynamic management of NSs, and the static management such as provisioning or unprovisioning a network slice should be left to OSS/BSS (Operation/Business Support System). Thus, in our testbed, an integrated architecture was designed in which the management of network slices will be coordinated by both MANO and OSS/BSS. MANO would handle on-boarding, instantiating, scaling and terminating of network slices while OSS/BSS is responsible for static management of slices including provisioning and unprovisioning of network slices. To evaluate our system, it was compared with the management systems equipped with only OSS/BSS or MANO in order to analyze the shortfalls of those systems when used to deploy network slices. Through this analysis, this research confirms the necessity of applying both OSS/BSS and MANO for the coordinated management of 5G core slices as adopted by 3GPP.展开更多
随着媒体消费的不断增长,传统电视传输面临着速度和质量的双重挑战。为此,5G网络切片技术提供了一种革新方案,能够在同一物理网络基础上实现多种服务的高效传输。分析5G网络切片技术如何利用增强移动宽带(Enhanced Mobile Broadband,eM...随着媒体消费的不断增长,传统电视传输面临着速度和质量的双重挑战。为此,5G网络切片技术提供了一种革新方案,能够在同一物理网络基础上实现多种服务的高效传输。分析5G网络切片技术如何利用增强移动宽带(Enhanced Mobile Broadband,eMBB)、超可靠低时延通信(Ultra-Reliable and Low-Latency Communication,uRLLC)、海量机器类通信(Massive Machine Type Communication,mMTC)这3大服务类别,并结合非正交技术多址接入(Non-Orthogonal Multiple Access,NOMA)技术和波束构成技术,提高电视传输的质量与速度,引领未来传输技术的发展趋势。展开更多
文摘为了满足不同业务对5G网络差异化的需求,5G网络采用了网络切片技术,将网络资源灵活分配,实现网络端到端或某一部分资源的切分,包括终端、接入网和核心网的切分。每个切片的能力按业务需求进行切分,在同一网络基础设施上,切分出多个具备不同能力的虚拟子网。根据《3GPP TS 23.501-System architecture for the 5G System (5GS)Stage 2 (Release 18)》规范,定义了六大类(SST字段分类)切片,分别是e MBB(Enhanced Mobile Broadband,增强移动宽带)切片、URLLC(Ultra-reliable and Low Latency Communications,高可靠低时延通信)切片、MIoT(Massive IoT,大规模物联网)切片、V2X(Vehicle To Everything,车联网)切片、HMTC(High-Performance Machine-Type Communications,高性能机器类通信)切片、HDLLC(High Data rate and Low Latency Communications,高数据速率低时延通信)切片。对切片技术进行了介绍,同时,对特定场景的切片监测系统进行了研究,给出了一种切片监测系统的实现方案,该系统可帮助提高特定场景切片网络安全性和可靠性。
文摘To manage and orchestrate Network Slices (NSs) for 5G Core (5GC), the MANO (MANagement and Orchestration) framework is proposed by European Telecommunications Standard Institute (ETSI). In most research testbeds, MANO systems such as Tacker, OSM and ONAP are used to initiate network slices. However, this doesn’t comply with the 3GPP 5G standards as MANO should only be responsible for dynamic management of NSs, and the static management such as provisioning or unprovisioning a network slice should be left to OSS/BSS (Operation/Business Support System). Thus, in our testbed, an integrated architecture was designed in which the management of network slices will be coordinated by both MANO and OSS/BSS. MANO would handle on-boarding, instantiating, scaling and terminating of network slices while OSS/BSS is responsible for static management of slices including provisioning and unprovisioning of network slices. To evaluate our system, it was compared with the management systems equipped with only OSS/BSS or MANO in order to analyze the shortfalls of those systems when used to deploy network slices. Through this analysis, this research confirms the necessity of applying both OSS/BSS and MANO for the coordinated management of 5G core slices as adopted by 3GPP.
文摘随着媒体消费的不断增长,传统电视传输面临着速度和质量的双重挑战。为此,5G网络切片技术提供了一种革新方案,能够在同一物理网络基础上实现多种服务的高效传输。分析5G网络切片技术如何利用增强移动宽带(Enhanced Mobile Broadband,eMBB)、超可靠低时延通信(Ultra-Reliable and Low-Latency Communication,uRLLC)、海量机器类通信(Massive Machine Type Communication,mMTC)这3大服务类别,并结合非正交技术多址接入(Non-Orthogonal Multiple Access,NOMA)技术和波束构成技术,提高电视传输的质量与速度,引领未来传输技术的发展趋势。
