摘要
在对地球同步轨道卫星的移动通信系统中,典型的移动地面站(Mobile Earth Station,MES)的主要形态是车载终端、便携式终端、手持终端。手持终端的电池容量有限特性使得低功耗设计成为手持MES的焦点问题。为了延长基于对地球同步轨道移动无线接口(GMR-1)标准的MES待机时间,根据其空中接口规范的特点,采用优化系统架构和合并周期性唤醒任务的方式,在保证系统性能的前提下,使得移动地面站的基带核心处理部分在典型待机场景下的功耗减少了20.9%。
Typical types of MES based on geo-synchronous mobile satellite system includes vehicular, portable and hand-held terminals. More lower power consumption is focused on the design of hand-held MES because of limited battery life. According to the air interface of GMR-1, this paper presents a new approach to optimize system-level architecture and combine the different pe- riodic tasks which wake MES based on GMR-1 specification for extending the time of standby. On the premise of performance guarantee, the typical standby power dissipation of baseband core is reduced 20.9% after the new method is applied.
出处
《电子技术应用》
北大核心
2015年第6期27-30,34,共5页
Application of Electronic Technique
