ID 原文 译文
58398 为了在大规模多输入多输出( MIMO) 系统中实现低开销、低成本的可靠通信，通过基于正交匹配追踪( OMP)算法的混合波束赋形，在低开销硬件限制下，探究了射频链路的数量、模数转换器数量、有限移相器精度的变化对混合波束赋形系统性能的影响，并与理想情况下的数字波束赋形性能进行对比. In order to achieve reliable communication with low time overhead and hardware cost in multiple-input multiple-output ( MIMO) systems，hybrid beamforming based on orthogonal matching pursuitalgorithm( OMP) is implemented，and low-overhead hardware constraint is considered. The performanceof the hybrid beamforming system with the number of radio frequency( ＲF) chains and the accuracy ofshifters is studied. And compare it with the performance of digital beamforming.
58399 仿真结果表明，在射频链路中模数转换器数量较少和移相器精度较低时，基于此算法的波束赋形方案能够达到与理想数字波束赋形系统相近的性能指标. The simulation resultsshow that the performance of hybrid beamforming can approach the performance of digital beamformingsystem with less ＲF links and lower phase shifter accuracy.
58400 通过对第 5 代移动通信系统( 5G) 需求指标、国际标准化组织工作计划的介绍以及基于 3GPP Ｒ15 的5G 新空口物理层关键技术、空口协议栈过程、接入网架构与接口设计、基于服务化架构的核心网关键技术，描述了一个较为完整的 5G 系统设计和标准化进展情况，使读者能够对 5G 技术整体设计思路、方案和特点有一个清晰认识，并对5G 标准化内容有较为充分地了解. With the continuous development of information technology，the key technology and systemdesign of the fifth generation of mobile communications system ( 5G) has become a hotspot in both academia and industry. A complete overview of 5G design and standardization progress，including thekey performance index ( KPI) of 5G was provided，the work plan of international standardization organization on5G，and 5G design based on 3GPP Ｒ15. Specifically，the key technology of physical layer，the protocolstack and procedure of air interface，the radio access network architecture and interface design，the keytechnology and architecture of core network were introduced and analyzed. We try to provide a whole picture of 5G design，from radio access network to core network. Therefore，a clear understanding of the overall design ideas，solutions and features of 5G technology，as well as the 5G standardized contents canbe achieved.
58401 针对多用户多中继非正交多址( NOMA) 接入系统，提出了基于全双工解码转发的多用户最佳中继 NOMA 系 统. Considering the multi-user and non-orthogonal multiple access ( NOMA) system，a multi-userand best relay NOMA system with full-duplex decode-and-forward was proposed.
58402 基于最大最小准则，提出了可使目的用户获得信息速率最大化的最佳中继选择方案; A best relay selectionscheme was further proposed to maximize the achievable target user’s information rate via max-min criterion.
58403 分析了目的用户中断概率，推导了其闭合表达式. Then，the target user’s outage probability was analyzed，and the closed-form expression was alsogiven.
58404 仿真结果表明，若不考虑优化的用户排序，所提最佳中继选择方案的优势与用户个数和中继转发功率有关; The simulation results showed that，the advantage of the proposed best relay selection scheme wasrelated with the number of users and the transmit power of the relay without regard to the optimal users’order.
58405 若考虑优化的用户排序，采用所提最佳中继选择方案始终可以实现最佳的目的用户性能. However，if the optimal users’order was taken into account，the best performance can be alwaysbe achieved by the proposed best relay selection scheme.
58406 提出了一种服务化的第 5 代移动通信系统( 5G) 核心网切片架构，设计和实现了服务化的 5G 核心网切片管理系统原型验证平台. A slicing framework of a service oriented the fifth generation of mobile communications system( 5G) is proposed. Furthermore，a prototype verification platform for slicing orchestration and management is designed and implemented.
58407 该平台基于软件定义网络和网络功能虚拟化技术，能够支持多设备厂商、多运营商共享基础网络设施和核心网切片的动态管理，并能为不同场景的用户提供可靠和定制化的网络服务 Through the simple and general testbed based on software definednetwork and network function virtualization，the resource sharing among various vendors and operatorsand the dynamic monitoring can be implemented. The tenants can get on-demand customization and guaranteed service on the top of common infrastructure.