Control-plane protocol interactions in cellular networks

Guan-Hua Tu, Yuanjie Li, Chunyi Peng, Chi-Yu Li, Hongyi Wang, Songwu Lu
2014 Computer communication review  
Control-plane protocols are complex in cellular networks. They communicate with one another along three dimensions of cross layers, cross (circuit-switched and packet-switched) domains, and cross (3G and 4G) systems. In this work, we propose signaling diagnosis tools and uncover six instances of problematic interactions. Such control-plane issues span both design defects in the 3GPP standards and operational slips by carriers. They are more damaging than data-plane failures. In the worst-case
more » ... enario, users may be out of service in 4G, or get stuck in 3G. We deduce root causes, propose solutions, and summarize learned lessons.
doi:10.1145/2740070.2626302 fatcat:6idkznqlqbcddlog2m3xliafve