Methods for transmitting and receiving of control channel in wireless communication systems
A method of transmitting and receiving a control channel in a wireless communication system is provided. A base station allocates a data channel to a radio resource, adds start position information of the data channel into a payload of a control channel, and performs signaling for indication information on the start position information added into the payload of the control channel to a terminal. Accordingly, the legacy system and the enhanced system can efficiently transmit a control channel.
1. A method for a terminal to receive data channel in cooperative transmission system including a first base station and a second base station, comprising:
receiving downlink control channel including bit field regarding start position information of the data channel and MBSFN (Multicast-Broadcast Single Frequency Network) subframe information from the first base station through dynamic signaling;
receiving RRC (Radio Resource Control) message including the start position information and the MBSFN subframe information from the first base station through semi-static signaling; and
receiving the data channel from the first base station and/or the second base station by using the bit field, the start position information and the MBSFN subframe information,
wherein the start position information indicates a starting symbol of the data channel in a subframe,
wherein the MBSFN subframe information indicates whether the subframe in which the data channel is transmitted by the first base station and/or the second base station is an MBSFN subframe or not,
wherein the first base station and the second base station use same carrier,
wherein the bit field is included in a physical control channel transmitted by the first base station to the terminal.
2. A method of transmitting a data channel to a terminal in cooperative transmission system including a first base station and a second base station, comprising:
transmitting, by the first base station, a downlink control channel including a bit field regarding start position information of the data channel and MBSFN (Multicast-Broadcast Single Frequency Network) subframe information through dynamic signaling;
transmitting, by the first base station, an RRC (Radio Resource Control) message including the start position information and the MBSFN subframe information through semi-static signaling; and
transmitting, by the first base station and/or the second base station, the data channel
wherein the start position information indicates a starting symbol of the data channel in a subframe,
wherein the MBSFN subframe information indicates whether the subframe in which the data channel is transmitted by the first base station and/or the second base station is an MBSFN subframe or not,
wherein the first base station and the second base station use same carrier,
wherein the bit field is included in a physical control channel transmitted by the first base station to the terminal.