Only in Korea – Korea Telecom is suing rival SK Telecom over the claims for its triband carrier aggregated LTE-A network. As most operators struggle to plan for two-carrier aggregation – and certainly never mention that to the consumers – SKT is making capital from its world-first upgrade. This has angered KT, which says the speeds advertised are not possible because there are no handsets, yet, supporting the triband network. It is asking the court for an injunction against SKT advertising its new offering, arguing that, by claiming this is a commercial service, when handsets are not available, is deceiving consumers and distorting competition. Meanwhile, KT is taking a different approach to enhancing its 4G service in future, becoming the…