NTP network timing technique research for Android and iOS mobile platform

iOS operating system for Apple and Android operating system for Samsung, Huawei and other worldrenowned mobile phone manufacturers are representing the fashion trend of mobile phone development and also leading the development trend of mobile technology. However, due to the restriction of time synchronization strategy and time server functionality, both Android and iOS mobile platform are not provided with the function of high precision NTP network timing. In this paper, on the basis of advanced computer language JAVA and Xcode, NTP network time synchronization software for Android and iOS mobile platforms are produced. The simulation results of software simulator and mobile phone show that: for Android mobile platform, the mean value and variance (STD) of network latency and time deviation are some hundred milliseconds; while for iOS mobile platform, since there´s no publicity of time synchronization function, therefore, by using analog technology, the mean value and variance (STD) of network latency and time deviation are some ten milliseconds. In the end, this paper also summarizes and presents the next generation time service strategy of us for Android and iOS system through the study mentioned above.