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目前,国外专业移动通信用户主要使用的是面向语音任务的窄带数字集群通信技术,但美欧等西方发达国家已经开始向专业宽带移动通信过渡。国外主要的专业通信设备研发企业,包括欧宇航Cassidian、摩托罗拉系统、Thales、Harris、IPWireless等,纷纷投入宽带无线通信产品与方案的研发之中,旨在将4G技术与传统集群通信技术结合起来,大大推动了专业宽带无线移动通信技术的发展。本文综合介绍了这些企业的最新宽带无线通信产品与方案。
At present, foreign professional mobile communication users mainly use the narrow-band digital trunking communication technology for voice tasks. However, developed western countries such as the United States and Europe have already started the transition to professional broadband mobile communications. Major foreign communications equipment R & D enterprises, including Aerospace Cassidian, Motorola, Thales, Harris and IPWireless, have all invested in the research and development of broadband wireless communications products and solutions to integrate 4G technology with traditional trunking communications technology. Greatly promoted the development of professional broadband wireless mobile communication technology. This article presents a comprehensive overview of the latest broadband wireless communications products and solutions for these enterprises.