移动软交换呼叫模型的研究与设计

呼叫模型是移动软交换设计的核心.在分析了现有移动软交换呼叫模型的基础上,提出了一种基于分布式的MSCServer呼叫模型.该模型针对移动台发起前向承载建立呼叫控制流程的实现及路由的选择,实现了呼叫控制和媒体承载、业务逻辑和呼叫控制的分离,并支持多协议的接入,使得呼叫控制独立于底层承载协议,实现了移动软交换中移动性呼叫控制的设计要求.     

BICC协议的研究及其ISN模型设计

随着电信网的发展和信令技术的不断变化,与承载无关的呼叫控制协议(BICC)作为一种全新的呼叫控制协议被提了出来,它采用呼叫控制和承载控制分离的设计思路,使得复杂的网络互通问题变得十分简单,被认为是传统电信网向多业务综合平台演进的重要支撑工具.本文从产生背景、技术特点、体系结构三个方面对BICC协议进行了研究,最后提出了实现ISN的结构模型.     

多媒体CDMA蜂窝网络中联合退避缓存及速率自适应的呼叫接纳控制策略

资源管理和呼叫接纳控制作为未来蜂窝网络的核心管理模块,能为移动用户提供具有QoS保证的多媒体应用并实现无线资源的有效利用.针对多业务CDMA蜂窝网络,结合非理想功率控制下的容量定义,提出退避缓存与自适应速率调控相结合的呼叫接纳控制策略.其中退避缓策略采用请求呼叫主动退避的思想,有效降低阻塞率;自适应速率调控策略则采用业务用户双重分级的思想,确保用户公平性的同时实现平稳的QoS.仿真结果表明,该策略可以自适应地保证各类业务的QoS要求,提高业务间的公平性和系统资源的利用率.     

基于PARLAY WEB800业务的设计与实现

本文分析了基于ParlayAPI技术的Web800业务的功能与结构及业务的鉴权与认证功能,然后结合Web800业务呼叫流程说明了该业务的呼叫控制逻辑,最后阐述了该业务的管理功能。     

软交换技术

传统的电话交换网的私有性、封闭性及其开发高成本、升级换代周期长、不能及时提供具有竞争力的新业务，而市场对电信业务提出了不仅有综合业务，而且有针对特定群体，甚至个人的微服务需求。各种网络的技术特征正趋向一致，向宽带化、智能化演进，下一代网络的出现成为必然。软交换是从IP电话发展起来的下一代呼叫控制层的功能实体，呼叫与承载分离、业务与呼叫控制分离、兼顾与现有网络业务的互通及下一代网络的发展，能提供开放的、标准的API或协议，其分布式结构和网络融合能力使个人通信成为可能。软交换技术的出现，使电信运营商可通过它快速地向具有不同特征的人群提供微型服务，前景广阔，但其在商业和技术上存在无统一的标准、协议的兼容问题以及API无成熟产品、业务不明朗等问题。     

无线移动网中的队列降质接纳控制

提出了在无线移动网中基于队列的降质接纳控制算法,它区分了实时业务和非实时业务,同时考虑了切换优先和业务优先两种优先级。在网络带宽资源不足时,通过降低某些可容忍质量下降的呼叫的质量并与队列缓存呼叫相结合的方式,来获得小区中高优先级业务的新呼叫阻塞率和切换呼叫中断率均很低的性能改善。性能分析结果显示该算法简单易实现,具有较低的新呼叫阻塞率、切换呼叫中断率和较高的系统利用率。     

基于半呼叫的SSF模型

在半呼叫模型中,要很好地协调业务控制功能SCF和呼叫控制功能CCF,始终是业务交换功能SSF的难点.本文提出一个SSF模型的建立方案.该模型以单点控制为核心,独立区分上下两层功能单元的命令,灵活满足独立业务的需求,解决多业务的冲突问题,并实现多业务的触发.建立触发检出表EDP、事件检出表TDP和业务冲突表CDP是实现上述功能的重要手段,并结合了会话功能SESSION实现业务的映射,从而建立一个高效的SSF模型.     

从PCI/ISA做起

7月30日,新太科技推出“速能”呼叫中心中间件清风系列 Cls 产品,给 PCI/ISA 低端市场注入新生力量。该产品能够提供呼叫接入、业务处理和服务资源的一体化解决方案,并支持业内开放的、标准的、通用的基础软硬件架构,具有跨硬件平台、操作系统和数据库的特点。通过与 Intel Dialogic 语音板卡的捆绑,该系列产品可实现业务层与呼叫控制层的分离,以及呼叫层和传输层的分离,使业务层独立于     

软交换问答

什么是软交换技术?软交换技术是近年发展起来的一种新的呼叫控制技术，它以软交换设备为呼叫控制的核心，具有分层的体系架构、基于分组传输、能够提供多种接人方式等特点。在这种体系架构中业务与控制、接人与承载彼此分离．各个网元设备之间采用标准的协议进行通信，并支持标准的业务开发接口实现独立于网络的业务开发模式，并能为用户提供语音、数据和多媒体等各种业务。     

支持多重业务的地面电视双向方案呼叫接入控制算法

对于支持多重业务的地面电视系统双向方案,呼叫接入控制影响着用户的QoS和系统的性能.本文基于对已有的呼叫接入控制算法的研究以及地面电视双向方案的业务特点,将缓冲队列策略与适应性带宽分配策略相结合,提出一种适用于多重业务的地面电视系统双向方案的多级降级呼叫接入控制算法.通过MATLAB仿真验证,该算法能够有效降低上述系统的CBP和HDP.     

Service feature modeling: modeling and participatory ranking of service design alternatives

The design of software-intensive service systems involves and affects numerous stakeholders including software engineers, legal and business experts as well as a potentially large number of consumers. In consequence, the challenge arises to adequately represent the interests of these groups with respect to service design decisions. Specifically, shared service design artifacts and participatory methods for influencing their development in consensus are required, which are not yet state of the art in software service engineering. To this end, we present service feature modeling. Using a modeling notation based on feature-oriented analysis, our approach can represent and interrelate diverse service design concerns and capture their potential combinations as service design alternatives. We further present a method that allows stakeholders to rank service design alternatives based on their preferences. The ranking can support service engineers in selecting viable alternatives for implementation. To exploit this potential, we have implemented a toolkit to enable both modeling and participative ranking of service design alternatives. It has been used to apply service feature modeling in the context of public service design and evaluate the approach in this context.     

特大城市可持续养老服务系统模型构建

针对特大城市特点及其养老趋势,提出一种灵活多样、良性开放的可持续养老模式：集体自助养老（CSE）,对其定义、目标、类型、影响因素进行分析。结合六西格玛服务设计、产品服务系统设计、可持续养老理论,围绕养老目标,建立可持续养老CSE服务系统设计理论体系。可持续养老服务系统设计存在若干可行解,围绕提升养老满意度,提出CSE服务系统设计框架,充分利用信息化社会优势,对CSE产品与服务进行集成设计,建立CSE服务系统配置模型,分析了CSE服务系统选择、构建影响因素,根据不同的养老需求和有限的养老资源、成本设计不同的集体自助养老方案,满足特大城市多元化、个性化的养老需求,为可持续养老服务系统设计提供有益思路,为特大城市养老资源配置、养老基础设施建设提供参考。     

基于企业创新需求的设计服务发展模式研究

我国当下经济、政策、产业的导向都为设计服务业的发展带来机遇。而作为设计服务业主体的设计公司由于自身发展的局限性,导致其经营定位模糊、层次不清。以企业创新所提出的纵向专业化服务深度的需求和横向多专业领域服务广度的需求为线索,设计公司可以明确自己的发展路径,接合自身特点与优势选择定位,从而抓住发展的机遇。     

Applying Kansei engineering to design logistics services – A case of home delivery service

Home delivery service (HDS) has grown fast in recent years because more and more customers engage in Internet and television shopping. Moreover, due to the rising competition in the HDS sector, service providers need to put more concentration on the continual improvement and differentiation of service to maintain the competitive advantage. After experiencing the current services, customers are always expecting the new ones. Thus, the idea of new service design never ends. Designers always have to insight into the real feelings of customers so that they could design the new service, which is able to meet customers' expectation. Kansei engineering is a means to transform real voices of customers into the product and service design. This method is able to quantify the relationship between feelings represented by simple words and design elements. In this study, the Partial Least Square (PLS) is used to analyze the relationships between the real feelings of customers and characteristics of HDS. Finally, this study combines those characteristics, which are strongly related to important feelings, to obtain the original idea of new design of HDS.Relevance to industryAs stated in this abstract, our study offers an exemplification on applying Kansei engineering to design service in service industries. Specifically, along with the application of Kansei engineering, the research findings offer a technique for service design of service industries.     

Modularized design-oriented systematic inventive thinking approach supporting collaborative service innovations

The rapid evolution of new service systems raises crucial challenges for service design and requires effective methods. This study depicts a conceptual service design framework, called design-oriented systematic inventive thinking (DSIT) approach, which can be applied in different problem contexts. DSIT is presented as a new systematic and collaborative intelligence approach for creating and evaluating complex service systems using multi-criteria data analytics. DSIT synthesizes the current field of TRIZ service-design knowledge system and the emerging area of non-TRIZ service-design knowledge system. DSIT enables integrated development of service offerings at four dimensions and provides the matching integrated service design approach for each dimension. Four types of service design approaches are conceptualized as “human-independent service engineering,” “problem-clarified service engineering,” “solution-converged service engineering,” and “designing for service.” A new service computer-aided design system (service CAD) named DSIT explorer is developed consisting of customization, compatibility, and extensiveness of DSIT modules. A pervasive and smart collaborative service system (i.e., the smart MOS burger service solution) designed using DSIT explorer is illustrated. DSIT is a holistic, interdisciplinary, and collaborative service design concept, which is incorporated into a collaborative and intelligent service CAD framework to enable systematic inventive thinking throughout phases of service design lifecycle from problem definition, problem resolution, to solution evaluation.     

Service design as an innovation approach in technology startups: a longitudinal multiple case study

While service design has been accepted as a human‐centered and cocreative approach to service innovation, its role in technology‐driven contexts, specifically technology startups, has been largely unexplored. Previous research suggests that technology startups tend to focus on technical aspects of innovation, neglecting the value cocreation potential of service innovation that service design can facilitate. Focusing on value propositions as the main mechanisms of service innovation, this study explores how service design facilitates service innovation in technology startups. This longitudinal study examines the opportunities and challenges of introducing service design for the purpose of service innovation in five technology startups over a period of 11 months. Results reveal how service design facilitates the creation of new value propositions that expand the previous technology‐driven focus towards a human‐centered and cocreative one. Additionally, findings suggest that there are two levels of how service design becomes embedded in technology startups that are contingent on their life cycle stage. This contributes to the service innovation literature that views innovation as development of new value propositions and describes the key role of service design. The study also discusses managerial implications of the findings for technology startups and service designers and provides directions for future research.     

BPEL服务组合优化架构

针对当前服务组合存在的问题,提出了一个基于BPEL的服务组合优化框架。框架主要包括分布式UDDI服务注册中心,BPEL设计器,服务组合解析模块,服务组合优化模块等。从平台框架的提出设计到平台的实现贯彻了SOA的设计思想,优化服务组合,提高运行效率。     

论社会创新型服务设计的全民参与性

从分析服务设计产生的背景入手,阐述了参与性服务设计出现的原因和参与性服务设计的意义。探讨参与性服务设计对可持续社会建设的价值以及参与性服务设计的民主性以及对设计师和消费者的双赢意义,并以"GlobalServiceJam"为例展示全民参与服务设计的意义及实现方式。     

报业客户服务系统的设计与实现

报业客户服务系统的建立可以全面提升报业的服务水平和质量。介绍报业客户服务系统的设计与实现方法,给出了系统的设计原则、系统结构设计、系统总体功能设计及系统的实现。该设计与实现方法已应用于实际开发中,具有一定的实用价值。     

智慧地球中的信息服务设计探析

阐述了智慧地球的智慧解决方案需要信息服务的介入来实现其"智慧"的特性,其原因是信息服务可以帮助用户更好地利用信息。针对信息服务的对象是用户这一要点,分析了用户体验和用户的交互行为在信息服务设计中的作用,提出了信息服务设计的策略和方法。指出了信息服务设计在实现智慧地球构想中具有的重要价值。