面向5G的多网融合研究

多网络长期共存是各电信运营商面临的普遍现象,鉴于目前各网络独立运营引入的多网间互操作复杂、联合运营效率不高的问题,如何实现高效的多网融合以提高网络运营效率和用户体验成为移动通信研究中的一个重要课题,并具有广泛的应用前景.面向5G,其研究与网络架构的设计是相辅相成的,在对多网融合现状及问题进行分析的基础上,讨论了多网融合涉及的关键技术需求,并给出面向5G的逻辑架构示例,分析了相关的设计原理,同时进一步给出了用户/核心网透明的多网统一接入和无缝的移动性管理解决方案,缩短了网络间互操作路径,降低了互操作复杂度,提高了网络运营效率和用户体验.     

政企客户融合通信应用如何实现RCS标准化

目前RCS(Rich Communication Suite,富通信套件)所制定的标准更加注重于个人用户通信和社交需求,政企(集团)客户融合通信应用在RCS中的标准制定目前还处于空白阶段,急需建立相关规范标准. 本文在系统分析RCS应用发展、政企融合通信业务需求的基础上,根据融合通信“以用户为核心”的设计思想,以便捷用户使用、改善用户体验、提升用户价值为目标,借鉴相关通信标准和信息技术标准,提出适合政企级融合通信RCS标准规范的研究方向.     

超宽带网络环境下的一体化自助指配技术研究

以未来超宽带网络环境为背景,结合近期运营商在智能管道技术上的发展思路,提出了以增强用户体验为中心的一体化自助指配服务架构,通过分析固移融合的典型案例,研究了自助指配服务关键技术,最后给出了相关技术的发展建议。     

M-ICT时代融合业务技术发展趋势

提出了M-ICT时代融合业务技术的发展趋势:(1)虚拟数据中心已经成为下一代IT基础设施的通用解决方案,其通用功能架构包括软件定义计算、软件定义存储、软件定义网络和软件定义安全等核心子系统,技术方案尚在不断完善之中;(2)容器已大规模应用于互联网,传统的电信域急需应对这种挑战,容器技术也使得平台即服务Paa S产品拓宽了发展空间;(3)基于NFV架构的云化是大势所趋,以用户体验为驱动,基于融合CDN和智能数据分析,提供智能视频服务是竞争力提升的关键;(4)增强现实技术的多媒体视频应用必将极大地改进用户体验,人工智能技术在近几年将会产生更多的应用形态,进一步重塑和重建各行各业。     

如何打造端到端融合的“钻石级”智能管道?

实现融合的端到端智能管道,是运营商转变运维思维的过程,是从封闭电信网络阶段关注电信业务提供能力到电信IT融合网络阶段关注服务、关注用户体验的思维转变过程。     

中兴通讯技术FMC从融合终端开始

近几年,固定移动融合（FMC）成为电信行业的一个热点话题,网络发展的一个重要趋势.其目的是使用户不论在固定环境中,还是在移动环境中都能享受到相同的服务,获得相同的应用.固定移动融合主要体现在三个层面上：终端融合,业务融合,网络融合.其中终端的融合在这三个层面中最能让用户体验到融合,是FMC落实到用户身上的一个重要层面.     

Native RCS的技术架构研究与应用实践

通过对原生态RCS的技术架构进行研究分析,同时结合其在现网中的应用实践,总结可通用化推广的RCS体系架构,为国内外的电信运营商商用RCS创新技术提供一些参考价值。     

终端VoLTE与RCS融合方案研究

介绍了VoLTE和RCS的发展历程,VoLTE与RCS融合是必然趋势,但在此过程中一些关键问题仍未达成一致,不同终端厂家在APN配置、协议栈架构、业务融合等方面实现迥异。通过对VoLTE与RCS融合关键问题进行详细分析,提出了终端VoLTE与RCS融合解决方案的建议。     

基于分布式架构的融合用户数据中心部署方案研究

文章针对用户数据管理在各大电信运营商网络中的发展趋势,提出了基于分布式架构的融合用户数据中心部署方案,并对UDC、分布式HLR、融合数据中心等关键技术进行分析,探讨了融合用户数据中心的应用前景以及价值,为电信运营商网络和互联网业务融合奠定基础。     

闪耀融合之美

也许中国用户一时还无法领略法国电信Livebox之类的新型生活服务,也体验不到英国电信BT Fusion移动电话是怎样实现无缝转接的,但类似的融合应用迟早会在中国成为现实.海外融合的大潮渐行渐近,也为中国电信业新应用的发展打开了想像的空间.     

A lightweight convergent personal mobile service delivery approach based on phone book

Mobile phone users are demanding an efficient convergent communication approach for efficient communication and information sharing with their real life social circles. Unfortunately, the existing telecom services and the popular Internet services are not organically integrated to provide convenient convergent services. To overcome this issue, one of the promising convergent communication services considered by telecom carriers is RCS (Rich Communication Suite). However, existing issues, such as insufficient interoperability among different operators, shortage of terminals and heavy dependence on large‐scale IP multimedia subsystem (IMS) network deployment, mean that it will take time to implement RCS across worldwide networks and for it to become a service equally universal as voice and short message. Instead of a heavyweight RCS solution, in this paper, we propose a lightweight, quick deployment mobile phone book application system based on cloud computing without a fully deployed IP multimedia subsystem infrastructure, which seamlessly integrates traditional telecommunication services, instant messaging services, social networking services and automatic contact information management. Based on this, ‘Telco‐OTT’ service provision approach, telecom carriers can allow their subscribers to enjoy conveniently the rich convergent personal service experience quickly without a large initial investment. Thus, it is a low‐risk opportunity for telecom carriers to meet subscriber demand for advanced user‐centric convergent service features. Copyright © 2013 John Wiley & Sons, Ltd.     

Integrating communication services

The need for communication services which span multiple communication technologies is growing. Communication services are being developed in three areas: in the public switched telephony networks, on the Internet in the form of integrated multimedia including voice-over-Internet, and in private switched telephony networks in the form of enterprise computer-telephony integration applications. This article shows it is plausible to create unified services which span the Internet and public switched telephony networks, and goes on to describe Nexus, an architecture and prototype for integrated communication services     

空天地一体化通信网络发展愿景与挑战

从未来6G网络的愿景出发,首先讨论了空天地一体化的网络愿景,提出了一体化的网络架构。在分析了卫星通信息和空基通信系统的特点后,给出了未来空天地一体化通信网络的应用场景。然后从网络结构、通信设施与设备及空口技术等3个方面详细阐述了当前一体化网络的发展现状与技术挑战。最后总结了当前地面通信运营商在空天地一体化网络中的尝试,提出非地面网络具有明显的覆盖优势和长距离通信的低时延网络服务优势,可以帮助运营商提供低成本的普遍服务及扩展现有的通信服务,实现收入增长。     

富通信发展趋势研究

随着移动互联网的高速发展,电信业务和互联网业务融合的趋势愈发明显,传统运营商和互联网业务提供商之间的竞争将更加激烈。富通信正是在此背景下应运而生。本文从标准化、市场、技术等层面介绍富通信当前的发展现状,分析其未来的发展趋势,并进一步对运营商引入该技术提出了建议。     

IPTV网络中视讯业务研究和探讨

以IPTV视讯业务为例,探讨了IPTV网络中增值业务开展的各种方式,以及在IPTV网络中应用IMS的业务实现方式,提出了全新的IPTV视频业务实现方式和业务管理方法,给出了实现宽带网络综合业务的可行方案.     

移动通信综合业务管理系统的设计与实现

从不同角度和层面对移动通信综合业务管理系统的体系结构进行了综合分析和设计，并阐述了实现的关键技术。     

Implementing integrated and differentiated services for theInternet with ATM networks: a practical approach

This article reports on design, implementation, and preliminary experimentation of a network architecture that supports quality of service for Internet applications. It gives an overview of the various approaches toward communication networks that support application-specific degrees of QoS. Special emphasis is put on the integrated and differentiated services approaches and on combinations of them. A new architecture is described which aims to bring these concepts closer to practical realization in wide-area networks. The new architecture supports the integrated as well as differentiated services approaches in a smoothly integrated way, and uses the capabilities of an underlying ATM network to realize QoS. The enhancements to the existing network infrastructure are deliberately limited to the integration of a single new type of network element called an edge device. The potential benefits of such an architecture for various stakeholders are explained, and how the new architecture could be introduced smoothly in existing networks by small migration steps, also covering networks based on technologies other than ATM. It is shown that the approach can be scaled up to a very large QoS-aware overlay network for the Internet     

海洋通信的最新进展综述

This paper summarizes the requirements for modern maritime wireless communication networks in the marine environments including the sea-to-sea and sea-to-shore communication scenarios. The existing maritime wireless communication systems are presented and the development of the state-of-the-art maritime communication systems is surveyed. Furthermore, a hierarchical and integrated maritime network architecture is proposed to satisfy the increasing various classes of services which demand different Quality of Service (QoS). Finally, the open issues for further development of maritime communications are identified.     

Evolution of satellite communications: Integration of ETSI BSM and DVB‐RCS for future satellite terminals

The main added value of the European Telecommunications Standards Institute broadband satellite multimedia (ETSI BSM) architecture is the definition of the Satellite Independent‐Service Access Point (SI‐SAP) protocol interface, which formally separates Satellite Dependent (SD) from SI layers, thus enabling the implementation of powerful vertical QoS mapping strategies. On the other hand, DVB‐S2/RCS satellite standard is considered the driving technology to integrate satellite with terrestrial infrastructure and provide up‐to‐date services. This paper focuses on the integration of ETSI BSM architecture and DVB‐RCS technology, by analysing the adaptations needed on real DVB‐RCS terminals to be interoperable with the SI‐SAP interface. To this end, the detailed design of an underlying architecture taking into account required adaptations and new functionalities is proposed. The possible further evolutions of the BSM specification are also highlighted, showing the potential for the development of future devices integrating both DVB‐RCS and ETSI BSM architectures also in view of the recent upgrade to the DVB‐RCS2 standard. The paper also validates the SI‐SAP QoS functionalities and proves the performance benefits in terms of QoS and quality of experience of Web‐browsing by means of a satellite emulator developed fors this aim. Copyright © 2015 John Wiley & Sons, Ltd.     

Admission control and handover management for high‐speed trains in vehicular geostationary satellite networks with terrestrial gap‐filling

Following a recent upgrade, the Digital Video Broadcasting—Return Channel Satellite (DVB‐RCS) standard sets up to support terminal mobility. In this scenario, integration with terrestrial systems becomes a primary concern to ensure network connectivity in urban areas. This article proposes an integrated satellite–terrestrial architecture for the provision of broadband services onboard high‐speed trains, in which terrestrial cellular networks are seen as viable gap‐fillers for discontinuous satellite coverage. We derive an analytical model of the hybrid DVB‐RCS‐cellular system by exploiting analogies between the mobility pattern predictability of LEO constellations and that of high‐speed trains. Terminals whose QoS cannot be guaranteed by the satellite segment are proposed to temporarily divert the connections towards the terrestrial infrastructure, where available. Using an iterative approach based on the Erlang fixed‐point approximation, we show performance improvements with respect to stand‐alone satellite systems in terms of handover failure probability and overall resource utilization. The analytical model is also validated via our ns2‐based DVB‐RCS packet‐level simulator. Detailed modelling of synchronization and signalling mechanisms confirms the accuracy of the analytical results, and shows that topology and mobility information can contribute to refine radio resource utilization optimality when used jointly. Copyright © 2009 John Wiley & Sons, Ltd.