前言 笔者在坛子里潜水多年，看到了很多令人叫绝的优秀文章，尤其是那些描述个人工作经验的帖子，让我受益匪浅。作为一个工作近十年的通信人，我也想把我工作中总结出来的一些东西分享给各位朋友，但苦于没有什么思路，也担心自己这不入流的文笔会被拍砖致死
目前国际上数字集群调度系统存在TETRA、iDEN和FHMA三种较为先进的技术体制： 欧洲电信标准协会（ETSI）开发的TETRA（TErrestrial TRunked Radio）系统、是一个空中接口信令开放的系统； 以色列RAFAEL研发的跳频多址FHMA系统（Frequency Hopping Multiple Acc
SouthernLinc, a smaller wireless carrier that provides service in parts of Alabama, Georgia, Florida and Mississippi, said it has committed to maintaining its iDEN network through at least 2020. The company said it made the commitment in o
目前，在垂直行业市场，以TETRA、 PDT、 P25、 iDen为代表的窄带数字集群得到了广泛应用，但这些窄带集群只支持语音集群业务，不能支持视频监控、数据采集等宽带数据业务。而工业信息化的发展正驱动着行业市场宽带需求的快速增长：根据华为公司分析，在2013
Sprint收购Nextel被很多人看成是一个愚蠢的选择，从纯粹的投资回报率的角度来看的确是如此。2008年初，Sprint就宣布注销收购Nextel及几家小公司产生的全部约307亿美元的商誉。这意味着Sprint当初为收购付出了太高的溢价。但如果从Sprint自身的生存角度来看，
我国数字集群通信标准的讨论和制定差不多用了两年左右的时间，2000年12月28日信息产业部已批准发布《数字集群通信系统体制》电子行业标准，这是一个电子行业推荐性标准，此标准确定TETRA和iDEN两个系统都可在我国建网运行和运营。当然系统设备必须经我国无线
常用的十项专业数字通信标准 一、PDT（Police Digital Trunking）警用数字集群标准 PDT是具有中国自主知识产权的集群通信标准，着眼未来数字对讲机技术发展方向，可满足多数集群通信行业用户的需求。PDT标准充分考虑了中国国情，如频谱资源紧缺，东西部发展
据国外媒体报道，近日摩托罗拉公司推出了一项叫做PRIP的语音对讲平台，虽然说美国通信公司Sprint的iDEN通信系统已经瘫痪，但语音对讲功能还没有失效，现在用户通过无线网络或者数据资料即可实现语音对讲功能。 8美元无限通话 摩托罗拉推语音对讲平台（图片引
Wataniya International, the regional mobile network operator in the Middle East has announced that it has increased its investment in Saudi Arabias telecommunications market, increasing its share in Bravo, the Kingdoms only iDEN network, t
Sprint(NYSE: S)yesterday unveiled its Network Vision blueprint to deploy a cost-effective, innovative network plan to further enhance voice quality and data speeds for customers across the United States. Sprints Network Vision is expected
Nextel, an upstart mobile operator formed in the 1990s that attracted a loyal following in construction and other trades, looks set to disappear after Japans Softbank buys 70 percent ofSprintNextel. After the closing of the deal, forecast
北京时间12月23日凌晨消息（蒋均牧）美国第三大移动运营商SprintNexte已确认至少在未来3年内将继续购买摩托罗拉的iDEN服务。该运营商最近宣布计划将其iDEN用户迁移至升级后的CDMA网络，但这一进程需要花费漫长的时间。 新的协议正式将Sprint和摩托罗拉解决方
Two new iDEN handsets announced for availability in the first quarter; Additional devices planned for 2011. Sprint (NYSE: S) and theMotorolaSolutionsbusinessof Motorola (NYSE: MOT) announced an agreement to extend Motorolas support of the
Make no mistake thatSprints iDEN network is not long for this world. In an interview with Fierce Wireless today, Sprint CEO Dan Hesse said eventually the carrier will replace its iDEN 800MHz spectrum with enhancedCDMAcoverage. Though Hesse
The number of mobile subscribers connected to iDEN networks has reached 10 million outside the U.S.,Motorolaannounced on Thursday. According to Motorola, which developed the technology, more than 30 operators worldwide are running iDEN net
Agreement represents strong commitment fromMotorolaand NII Holdings to iDEN technology. The Motorola Solutionsbusinessof Motorola, Inc. (NYSE: MOT) and NII Holdings, Inc. (NASDAQ: NIHD) today announced they have agreed to extend Motorolas
Motorola(NYSE:MOT) recently announced thatNokia(NYSE:NOK) will acquire most of its wireless network equipmentbusinessfor $1.2 billion in cash. In addition to Nokia, Motorola competes with Ericsson (PINK:ERIXF) and Huawei in this market. Ac
SprintNextel is reported to have taken the plunge and signed a $2bn network outsourcing agreement with Ericsson, in a move it has been considering for months. Although Ericsson has been named as the partner by sources since the start of th
A new mobile phoneis on its way to the Canadian market, set to offer users in the country the possibility to try outGoogles Android operating system in a rugged design, namely theMotorolai1. The handset was announced officially several mon
For much of the last yearSprintinsiders have been telling us that Sprint absolutely is making the jump toLTE, despite half-hearted protestations from Sprint CEO Dan Hesse. Not only is Sprint going LTE, but the company is working on a massi
