Apparatus and method of resource allocation for data and control channels in a wireless communication system

A downlink reception method by a terminal in a mobile communication system, the method comprising:

• receiving, from the base station, information on a set of resource blocks associated with a control channel for the terminal, the information including first information associated with a number of resource blocks of the set and second information associated with an index corresponding to the resource blocks of the set;
• receiving, from the base station, control information including information for downlink data on the control channel identified based on the first information and the second information;
• and
• receiving, from the base station, the downlink data on a data channel based on the control information,
• wherein the set of resource blocks includes at least one control channel resource, and
• wherein a search space for the control channel of the terminal is defined based on an aggregation level, a number of the at least one control channel resource, and a number of a candidate associated with the control channel.

A base station apparatus in a mobile communication system, the base station apparatus comprising:

• a transceiver;
• and
• a controller coupled with the transceiver and configured to:
• identify a set of resource blocks associated with a control channel for a terminal,
• transmit, to the terminal, information on the set of resource blocks on a radio resource control signal, the information including first information associated with a number of resource blocks of the set and second information associated with an index corresponding to the resource blocks of the set,
• transmit, to the terminal, control information including information for downlink data on the control channel identified based on the first information and the second information, and
• transmit, to the terminal, the downlink data on a data channel based on the control information,
• wherein the set of resource blocks includes at least one control channel resource, and
• wherein a search space for the control channel of the terminal is defined based on an aggregation level, a number of the at least one control channel resource, and a number of a candidate associated with the control channel.

A terminal in a mobile communication system, the terminal comprising:

• a transceiver;
• and
• a controller coupled with the transceiver and configured to:
• receive, from a base station, information on a set of resource blocks associated with a control channel for the terminal, the information including first information associated with a number of resource blocks of the set and second information associated with an index corresponding to the resource blocks of the set,
• receive, from the base station, control information including information for downlink data on the control channel identified based on the first information and the second information, and
• receive, from the base station, the downlink data on a data channel based on the control information,
• wherein the set of resource blocks includes at least one control channel resource, and
• wherein a search space for the control channel of the terminal is defined based on an aggregation level, a number of the at least one control channel resource, and a number of a candidate associated with the control channel.