Samsung Electronics Co. said Sunday that it successfully developed a core technology of the fifth-generation network (5G) for the first time, aiming to enable users to access faster data services by 2020.    The new wireless technology will enable customers to access a stream of data faster than the current fourth-generation network and download an entire movie in less than a second, the world\'s largest smartphone maker said.    Under the new platform, users can download and upload data at speeds of up to tens of gigabits per second (Gbps), compared to 75 megabits per second (Mbps) posted by the fourth-generation long-term evolution (LTE) service.    Samsung Electronics said it has successfully tested the platform using the 28 Gigahertz (GHz) waveband to transmit data at a speed of 1 Gbps, which earlier had been considered as a conundrum by global industry players.    The tech giant said it used 64 antenna elements to overcome the issue, which allowed the device to exchange real-time signals under the platform. Samsung plans to make the service available to consumers by 2020, it added.    Market watchers said Samsung\'s development will add vitality to global development of the 5G network and its commercialization, as well as help in making an international standard for the platform.  Advanced countries have been vying to pre-empt the 5G market, with China and the European Union injecting large sums of cash into development of the new communication platform.