基于VMM的LTE小区搜索模块验证

Cell search module verification based on VMM

随着芯片设计规模和复杂度的增加,功能验证变得越来越复杂,验证面临着诸多挑战。有统计数据显示,验证工作占整个设计开发工作60%～80%的时间。在长期演进系统(long term evolution,LTE)中,小区搜索是一个非常关键的过程,是移动终端开机后首先要做的步骤。小区搜索的性能好坏直接影响LTE系统后续过程的进行,对LTE系统的性能有很大的影响。以LTE系统小区搜索模块为例,简要介绍了VMM(verifacation methodology man-ual)验证方法学,并基于VMM验证方法学搭建了小区搜索模块验证平台,对小区搜索模块进行了全面的功能验证。验证结果表明,本模块能够完成预期的目标,采用VMM验证方法学可以极大地提高验证效率,缩短验证周期。

With the growth of the scale and complexity of the chip design, function verification becomes more and more complicated, and verification is confronted with some challenges. Statistical data shows, the work of verification accounts for sixty to eighty pewent of the time for the whole design and development work. In the LTE system, the cell search is a key process, and it is the first process when UE is booting. The performance of cell search influences directly the following process of the LTE system. It has a great influence on the performance of the LTE system. This paper takes cell search module as the example, introduces the VMM verification methodology briefly, and uses VMM verification methodology to build the verification platform of cell search module, and does a comprehensive functional verification for cell search mod- ule. Verification resuhs show that this module will be able to accomplish the desired objectives; using VMM verification methodology greatly improves the efficiency of verification, shortened the verification period.