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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=57" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">GSM商业网络发布20周年用户数量超过44亿 </h1> <p class="xg1"> 时间：2011-7-2 21:04<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(926)</em> 评论: 0</p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=57" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>1991 年 7 月 1 日，全球首个商业网络 GSM 呼叫在芬兰前总理 Harri Holkeri 与坦佩雷市副市长 Kaarina Suonio 之间完成，此网络最初由 Telenokia 和西门子（即今天的诺基亚西门子通信）为芬兰运营商 Radiolinja 构建 ...</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><P>7月1日为GSM商业网络发布20 周年。1991 年 7 月 1 日，全球首个商业网络 GSM 呼叫在芬兰前总理 Harri Holkeri 与坦佩雷市副市长 Kaarina Suonio 之间完成，此网络最初由 Telenokia 和西门子（即今天的诺基亚西门子<a href="http://ofc.oecr.com" target="_blank" class="relatedlink">通信</a>）为芬兰运营商 Radiolinja 构建，如今以 Elisa 的名义运营，标志着全球数字通信新时代的开启。<BR><BR>全球移动通信系统 (GSM) 于 1987 年被欧洲采用，作为数字移动技术的标准。第二代移动技术支持数据与语音流量。GSM高质量的语音呼叫、轻松的国际漫游与对于新服务的支持，如文本信息 (SMS) ，为手机在全球的广泛使用打下了良好的基础。<BR><BR>在截止到 2001 年的第一个十年中，用户数量已经达到 5亿。现在全球的 234 个国家与地区已经拥有 838 个 GSM 网络，用户数量超过44亿。目前，GSM 仍然发展迅速，每天会增加 100 万新的 GSM 用户，差不多每秒钟增加 12 个人。</P> <P><A href="http://www.oecr.com/data/attachment/portal/201107/02/2103263e1en5vbc5rlclk4.jpg" target=_blank><IMG src="http://www.oecr.com/data/attachment/portal/201107/02/2103263e1en5vbc5rlclk4.jpg"></A></P> <P>Harri Holkeri 进行了全球首次 GSM 呼叫 <BR><BR>GSM 技术家族目前通过 3GPP 实现标准化，进一步演进为 EDGE、3G 与 LTE。第三代 3G WCDMA 网络拥有更高的数据传输速率和更大容量，支持移动宽带业务。LTE 已经在全球拥有超过 20 个商用网络，标志着技术演进又迈出了一大步。GSM、3G 与 LTE 都是演进的技术，支持根据覆盖与容量的需求来构建和扩展网络，这些技术之间还支持无缝集成。<BR><BR>诺基亚兼容与行业合作部门副总裁 Timo Ali-Vehmas 表示：“当我们最初构建系统，生产出完成首次呼叫的首款诺基亚 GSM 手机时，我们还无法预测到 GSM 为全球数十亿人所带来的巨大影响。GSM 仍在发展，我们很欣喜地看到GSM 的演进，并且能够很多振奋人心的方式获得新生。”<BR><BR>诺基亚于 1992 年推出了首款数字 GSM 手机 — Nokia 1011。其它具有标志意义的型号还包括 Nokia 2110，而最受欢迎的型号则是 Nokia 1100，共售出了超过2.5 亿部。诺基亚西门子通信技术直接为 2.9 亿用户提供支持，约占全球人口的一半，在 143 个国家与地区运营着 365 个 GSM 网络。</P> <DIV><FONT color="#808080" size=2><IMG src="http://www.oecr.com/xwb/images/bgimg/icon_logo.png"> 已同步至 <a href="http://ome.ac.cn/index.php?m=show&id=13486361455" target="_blank">update的微博</A></FONT></DIV></td></tr></table> <!--[diy=diycontentbottom]--><div id="diycontentbottom" class="area"></div><!--[/diy]--> <script src="data/cache/home.js?eOg" 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