Method and apparatus of transmitting and receiving backhaul downlink control information in wireless communication system

A method for receiving backhaul downlink control information by a relay node (RN) of a wireless communication system, the method comprising:

• receiving resource assignment information from a base station over a relay-physical downlink control channel (R-PDCCH);
• receiving backhaul system information from the base station over a relay-physical downlink shared channel (R-PDSCH) determined according to the resource assignment information;
• and
• receiving a backhaul downlink subframe according to the backhaul system information.

A method for receiving backhaul downlink control information by a user equipment (UE) of a wireless communication system, the method comprising:

• receiving resource assignment information from a base station over a relay-physical downlink control channel (R-PDCCH);
• receiving backhaul system information from the base station over a relay-physical downlink shared channel (R-PDSCH) determined according to the resource assignment information;
• and
• receiving a downlink subframe according to the backhaul system information.

A method for transmitting backhaul downlink control information by a base station of a wireless communication system, the method comprising:

• transmitting first resource assignment information to one or more user equipments (UEs) over a physical downlink control channel (PDCCH);
• transmitting backhaul system information to the one or more UEs over a physical downlink shared channel (PDSCH) determined according to the first resource assignment information;
• transmitting second resource assignment information to one or more relay nodes (RNs) over a relay-physical downlink control channel (R-PDCCH);
• transmitting the backhaul system information to the one or more RNs over a relay-physical downlink shared channel (R-PDSCH) determined according to the second resource assignment information;
• and
• changing a backhaul downlink resource region according to the backhaul system information.

A method for transmitting backhaul downlink control information by a base station of a wireless communication system, the method comprising:

• transmitting resource assignment information to one or more user equipments (UEs) over a physical downlink control channel (PDCCH);
• transmitting the resource assignment information to one or more relay nodes (RNs) over a relay-physical downlink control channel (R-PDCCH);
• transmitting backhaul system information to the one or more RNs and the one or more UEs over a relay-physical downlink shared channel (R-PDSCH) determined according to the resource assignment information;
• and
• changing a backhaul downlink resource region according to the backhaul system information.