METHOD FOR DEVICE-TO-DEVICE COMMUNICATION BASED ON CELLULAR TELECOMMUNICATION SYSTEM

摘要

PURPOSE: A direct communication method between the terminals based on a cellular network is provided to construct the selective operation of distributed control based D2D(Device To Device) communication, center control based D2D communication, and cellular communication in a cellular network. CONSTITUTION: Devices participating in D2D communication are synchronized by using a proper reference signal(210). Each device finds out other devices which are able to provide the D2D communication(220). After finding out other devices, a device which is necessary for transmission and reception connects adjacent devices(230). Devices participating in link scheduling broadcast a CID(Connection Identification) by using resources corresponding to the CID(240). [Reference numerals] (210) Synchronizing step; (220) Discovery step; (230) Paging step; (240) Traffic communication step;