关键词: 专用短程通信, ASN.1, 紧缩编码规则, 内存管理

Abstract: Based on the study of the application layer of Dedicated Short Range Communication (DSRC) protocol stack, as for the ASN.1 PER encoding and decoding module, a framework for encoding and decoding was designed and implemented, which included ASN.1 mapping rules, a general procedure for encoding and decoding, and a memory management method specifically designed for small devices. The framework is of good generality because of well-organized modules. The test results show that the framework has good performance, and it meets the real-time requirement of the protocol.

Key words: Dedicated Short Range Communication (DSRC), Abstract Syntax Notation One (ASN.1), Packed Encoding Rules (PER), memory management