Method for transmitting and receiving control information of a mobile communication system

摘要

Disclosed is a method for transmitting and receiving control information. The method for transmitting control information according to the present invention, in a mobile communication system in which a control channel region and a data channel region are separated from each other, comprises the steps of: determining a control channel resource for transmitting control information by means of the data channel region; and transmitting the control information using the determined control channel resource. According to the present invention, a capacity for control information, which increases for multiple user multiple-input multiple-out (MIMOs) in a heterogeneous network environment, for heterogeneous network interference control using carrier aggregation, for frequent use of a multicast-broadcast single frequency network (MBSFN) subframe, and for a CoMP transmission control, may be satisfied. Further, an adaptive resource allocation based on a requested capacity for control information may be enabled, and the efficient utilization of resources may also be enabled.

主权项

1. A method for transmitting downlink control information to a terminal through a radio frame, the radio frame comprising a plurality of subframes, each subframe comprising at least two slots, each subframe being divided in time domain into a first area and a second area, wherein a first physical downlink control channel is located in the first area, a physical downlink shared channel is located in the second area and the first physical downlink control channel is not located in the second area, the method comprising:
transmitting, to the terminal, scheduling information related to a second physical downlink control channel; and transmitting the downlink control information to the terminal through the second physical downlink control channel, wherein the second physical downlink control channel is located in the second area, wherein location of the downlink control information in the second area is determined at least based on a slot number of one of the slots within the radio frame, wherein the downlink control information is located in the one of the slots.