We catch up with the leading 4G chip manufacturer to talk about the rollout of 4G networks Most of us will be familiar with 3G, which stands for third-generation and in the case of mobile phones means the third-generation of mobile communication standards (typically GSM, EDGE, and UMTS). If for no other reason than Apple's iPhone 3G and iPhone 3GS which make use of the 3G networks to enable faster internet access.