Abstract:
Disclosed herein is a base station of a mobile communication system configuring at least one low latency transmission time interval (TTI) within a length of at least one transmission symbol in a subframe including a plurality of transmission symbols and transmitting LL (low latency) TTI related information using a physical control format indicator channel (PCFICH) transmitted at a pre-defined transmission symbol position within the subframe.
Abstract:
Disclosed are a method and apparatus for transmitting information in a low latency mobile communication system. Delay time requests are obtained from terminals, and time intervals for transmitting control information for the respective terminals are determined on the basis of the delay time requests. Control information is transmitted to the respective terminals according to the determined time intervals.
Abstract:
Disclosed are a method and a terminal for a distributed access. The terminal maps data channels to be allocated in a plurality of data channels included in a frame and map scheduling priorities. In this case, the terminal determines positions of resources of a first message as a resource request message and a second message as a response message for the first message in the first channel.
Abstract:
A discovery method is provided by a device in a D2D direction communication. The device selects a discovery resource unit from among discovery resource units which are not being used after listening during one or more discovery resource periods. The device transmits a first discovery signal through the selected discovery resource unit in a broadcasting manner at a first discovery resource period, and transmits a second discovery signal through the selected discovery resource unit in a query-based manner at a second discovery resource period.
Abstract:
A synchronization method by a device is provided in a device-to-device direct communication. The device receives synchronization signals from a plurality of other devices at a current frame, and estimates a synchronization time at a next frame based on the synchronization signals received from the other devices.