FM—SCA无线寻呼系统

本文分析了ＳＣＡ无线寻呼系统的基本构成，着重阐述了在调频广播基础上开展ＳＣＡ无线寻呼所需增加的系统，指出了建立ＳＣＡ无线寻呼台的优势。     

电子部七所特别推介ET—150无线寻呼发射机

电子部七所特别推介ＥＴ—１５０无线寻呼发射机无线寻呼发射机是无线寻呼系统总台的核心设备之一，为满足日益增长的市场需要，广州通信研究所十八室自行开发生产了ＥＴ—１５０无线寻呼发射机，为发展我国的移动通信事业增添了一项国产设备。ＥＴ—１５０发射机与国产其...     

发展大容量高效率无线寻呼系统

本文首先简要介绍了无线寻呼系统的组成，然后分析了目前小容量无线寻呼系统大量发展的现状，对大、小容量无线寻呼系统进行了性能比较，最后提出应努力发展大容量高效经无线寻呼系统。     

无线寻呼系统中的计算机技术应用

本文研究的是无线寻呼系统中计算机技术的应用。首先讨论了无线寻呼系统的构成，并对目前最常用的无线寻呼系统的计算机网作了深入的分析。然后，详细研究了寻呼系统的编码器，汇庥器和监控器，并用软件实现编码功能。     

浅析无线寻呼传输的解决方案—卫星通信

采用卫星通信是解决无线寻呼传输链路，改善无线寻呼覆盖效果，节约运营成本的最好途径。本文从通信的必要性，可行性，优越性等几个方面，结合湖南无线寻呼传输的实际情况，充分阐明卫星通信是无线寻呼传输必然趋势的观点。     

国际性的寻呼标准—ERMES

本文对目前唯一的国际性寻呼标准－ＥＲＭＥＳ作了综合性的介绍，同时对我国寻呼通信的发展状况作了简单叙述，希望我国能把ＥＲＭＥＳ这种无线寻呼通信服务系统中的ＧＳＭ尽快提到议事日程上来。     

调频广播副载波无线寻呼系统

简要介绍一种新型的无线寻呼系统－调频广播副载波（FM－SCA）无线 寻呼系统，论述了该无线寻呼发射机制与系统以及它的接收机制与系统，并指出了它们的优越性。     

本地无线寻呼发射覆盖网组网技术

本地无线寻呼发射覆盖网组网技术谢华在本地无线寻呼系统中，发射覆盖网的覆盖效果对于整个无线寻呼系统是至关重要的。如何在现有条件下建造一个高效发射覆盖网，进一步提高发射覆盖效果，是摆在寻呼台面前急待解决的技术课题。本文从实际应用角度出发介绍了本地无线寻呼...     

无线寻呼系统的结构及联网问题

介绍了无线寻呼系统的三种典型结构:本地无线寻呼系统、区域无线寻呼系统和全国联网的无线寻呼系统,说明了各自实现联网和提供用户漫游服务的方法。     

新一代无线寻呼系统及其关键技术

无线寻呼虽然发展速度减慢，但其技术仍在不断地发展。文章介绍了新一代无线寻呼系统及其关键技术，并对无线寻呼的增值业务和发展方向进行了讨论。     

Intelligent paging strategies for third generation mobiletelecommunication systems

Location management procedures, in conjunction with the millions of users expected to subscribe to third generation mobile telecommunication systems, will generate a huge signaling load. In this paper, we propose a method which aims at the reduction of signaling overhead on the radio link produced by the paging procedure. The key idea is the application of a multiple step paging strategy which operates as follows: at the instance of a call terminating to a mobile user who roams within a certain location area, paging is initially performed in a portion of the location area (the paging area) that the so-called “paging related information” indicates. On no paging response, the mobile user is paged in the complementary portion of the location area-this phase can be completed in more than one (paging) step. Various “paging related information” elements (e.g. recent interaction information, high mobility flag, etc.) can be used and several “intelligent” paging strategies can be defined. Representative paging strategies are analyzed in terms of network performance and quality of service (paging signaling, paging delay, processing power requirements), via a simulation tool which models a realistic city area environment     

Internet寻呼业务应用前景可观

随着Ｉｎｔｅｒｎｅｔ网络技术的发展,Ｉｎｔｅｒｎｅｔ用户和寻呼业务用户日益增多,Ｉｎｔｅｒｎｅｔ寻呼业务应运而生,Ｉｎｔｅｒｎｅｔ寻呼业务按使用方法可分为万维网寻呼和电子邮件寻呼两大类,目前提供电子邮件寻呼业务的公司较多。     

Paging systems: network architectures and interfaces

In the past few years, the penetration rate of the paging service has significantly increased. The paging service is competitive because paging networks offer inexpensive service in large service coverage areas, and pagers are cheap and easy to carry. This article provides an overview of the one-way paging network architecture and the interfaces among the paging network elements. The author also briefly describes two-way paging services and uses the GSM short message service as an example to illustrate how two-way messaging can be offered under the cellular platform     

CDMA网络移动交换机系统间短消息寻呼技术研究及应用

研究并提出了CDMA网络移动交换机系统间短消息寻呼的技术要求,主要描述了CDMA网络移动交换机系统间短消息寻呼对服务交换机、相邻交换机技术的要求、呼叫流程等,并对该技术在现网的实际应用效果进行了评估。本文所述的CDMA网络短消息系统间寻呼技术能明显改善CDMA网络MT短消息的首发寻呼成功率。     

从寻呼业务到个人移动信息服务系统

在探讨了寻呼业务的现状和发展方向后,阐述了在数据业务快速增长的背景下,将提供单纯寻呼业务的网络向窄带个人移动信息服务系统演进的思路;对个人移动信息服务系统的特点进行了归纳,分析了涉及到的关键技术,最后结合系统实现描述了个人移动信息服务系统能够支持的双向信息、电子邮件和Ｗｅｂ浏览等三大类业务。     

Django框架Web数据查询分页技术研究

为了探索Django框架下Web数据查询分页的实现方法及性能,本文先对Web数据查询分页的执行过程和在其它框架下常用的分页方法进行了分析研究.在此基础上,提出了在Web服务层和在数据库服务层分页两种方案在Django框架下实现的几种具体方法,分别是利用缓存和Sessions实现在Web服务层分页,利用存储过程和自定义Manager方法实现在数据库服务层分页.最后,对这几种实现方法进行了测试比较,发现在网站数据量较小时几种方法性能差别不大,当数据量较大时在数据库服务层分页方法性能较为优越.     

双向寻呼——寻呼市场的新契机

近年来,中国的无线电寻呼市场发展异常迅猛,但面临着移动电话手机带来的挑战和威胁。双向寻呼的诞生为寻呼服务注入了新的活力,它可实现自动漫游登记、确保消息送达并具有回发消息的功能。它与Ｉｎｔｅｒｎｅｔ连接,能为用户提供别开生面的网络信息服务。     

A comparison of different paging mechanisms for mobile IP

This paper proposes two Individual paging schemes, then presents a comparative analysis on the signaling cost functions of Mobile IP (MIP) with different paging protocols and paging schemes and investigates constructing optimal paging areas using discrete system model as a mobility model. In wireless mobile Internet, mobile hosts often visit foreign networks that might be far away from their home networks and the occurrences of their inter-domain movement are relatively rare. In this scenario, our analytical results show that paging, particularly individual paging, can significantly improve the total signaling cost of MIP. We show that Domain paging can bring about considerable cost saving compared to FA (Foreign Agent) paging. Our results also demonstrate the significant advantages of Individual Paging over Static Aggregate Paging. The results show that specifying the optimal paging area size is critical in saving signaling cost of MIP with paging support. Hung Tuan Do received the B.E. degree in Electrical Engineeing and Computer Science from Hanoi University of Technology, Vietnam, and the M.E. and the Ph.D. both from Gunma University, Japan. His research interests include Mobility Management, Wireless Internet and Mobile Ad hoc Networks. Yoshikuni Onozato is a Professor with Gunma University. His research interests are in satellite systems, computer communication networks and distributed computing systems and span the entire spectrum from the design and performance evaluation of these systems to their implementation. He is a member of IEEE, ACM, IPSJ, ORSJ and IEICE.     

提供即时通话服务的新型寻呼系统

本文介绍了一种可提供即时通话服务的新型寻呼系统的设计思想、系统组成、工作原理及应用特点。这种新型无线寻呼系统与传统寻呼系统相比，具有方便、低廉、兼容等特点。     

中国无线寻呼业务的发展及市场展望

本文通过分析近几年来我国无线寻呼业务的发展状况及趋势，从技术、业务、经营模式等多方面了我国无线寻呼市场具有巨大的发展潜力，并对未来我国无线寻呼业务及市场作了展望 。