提升5G USIM卡文件更新次数的方法实现

Implementing the Method of Increasing the Update Number of 5G USIM Card Files

为了解决5G系统中USIM卡文件更新次数寿命问题,USIM卡文件系统为卡内需要高频次更新的文件创建多个备份文件,将对源文件的更新次数要求分散到各备份文件进行更新,并定义新的FCP文件控制模板、文件映射链表及映射过程、文件读写过程等。通过分散映射更新方法,提升5G USIM卡文件更新次数寿命。

In order to solve the problem of file update times and lifetime of USIM card in 5G system,the file system of USIM card creates multiple back up files for the files that need high frequency update in the card,and distributes the update times of the source files to the backup files for up dating,defines a new FCP file control template,file mapping link list and mapping,document reading and writing process,etc.The lifetime of 5G USIM card file update times is improved by the decentralized mapping update method.