Being China, it could be a TD-SCDMA variant (the stylized '4G' logo hints at being a China Mobile variant). That would escape the WCDMA related patents, but it

Being China, it could be a TD-SCDMA variant (the stylized '4G' logo hints at being a China Mobile variant). That would escape the WCDMA related patents, but its still technically a UMTS/GSM system.