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4G语音来了,中移动测试新通话技术 - 站长搜索
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4G语音来了,中移动测试新通话技术

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2014-06-12 11:39:53 转载来源: 网络整理/侵权必删

AS网站目录(www.adminso.com):4G语音来了,中移动测试新通话技术 尽管一些4G用户的感受是中国移动4G语音通话有时延现象,不过,中国移动总裁李跃表示,4G有更短的时延特征,并且,中国移动正在解决Volte的研发和商用问题。中国移动董事长奚国华则表示,预计到5G时代,无线网的传输速率应达到光纤的接入速率,同时应是零时延的使用,还有就是有千亿设备的连接能力

AS网站目录(www.adminso.com):4G语音来了,中移动测试新通话技术

尽管一些4G用户的感受是中国移动4G语音通话有时延现象,不过,中国移动总裁李跃表示,4G有更短的时延特征,并且,中国移动正在解决Volte的研发和商用问题。

中国移动董事长奚国华则表示,预计到5G时代,无线网的传输速率应达到光纤的接入速率,同时应是零时延的使用,还有就是有千亿设备的连接能力。

他又表示,4G也将有更低的成本。3G和2G比,成本大幅度降低,4G和3G相比成本大幅度降低。

关于语音时延问题,融合通信业务将于今年二季度在5个城市启动外场测试,争取在明年实现全面商用。融合通信包含三方面内容,新通话指质量更高效率更快的通话,呼叫时延缩短至2秒钟以内,2个VO-LTE之间只有0.8秒时延,可支持高保真电话、多媒体通话、视频通信,改变了通信电话编码的传统模式。

李跃也认为4G有更好的频谱利用率,4G有更短的时延。他说,“我们可以定量讲一下,3G时期我们接入互联网的时延是以100毫秒为单位,而4G时期是以20~30毫秒为单位”。

按照一些技术上的说法,中国移动所采用的4G制式手机相比其3G制式的TD-SCDMA手机降低了无线网络时延;使用时用户延时小于0.05秒,仅为3G的1/4。这被形容成,即便在每小时数百公里的高速行驶状态下,移动4G仍然能提供服务。

标签: 4G 语音 移动 测试 新通话 通话 技术


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