Apparatus and method of resource allocation for data and control channels in a wireless communication system
A method and system for resource allocation for data and control channels is provided. A downlink transmission method of a base station in a the system includes determining, by the base station, whether resources for a terminal are restricted; determining a sub-set of resource blocks for the terminal from among all resource blocks, if the resources for the terminal are restricted; transmitting information about the sub-set of the resource blocks to the terminal; and allocating a first sub-sub-set of the sub-set of the resource blocks for control channel transmission, and a second sub-sub-set of the sub-set of the resource blocks for data channel transmission.
1. A downlink transmission method by a base station in a mobile communication system, the method comprising:
identifying a set of resource blocks associated with a control channel for a terminal;
transmitting, 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;
transmitting, 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
transmitting, 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.
2. The downlink transmission method of claim 1 , further comprising receiving, from the terminal, terminal information including at least one of channel information of a subband, expected traffic of the terminal, and channel feedback information,
wherein the set of resource blocks for the terminal is identified based on the terminal information.
3. The downlink transmission method of claim 1 , wherein the control information is located on a first set of the set of resource blocks for the terminal,
wherein the downlink data is located on a second set of the set of resource blocks for the terminal, and
wherein the first set and the second set have at least one resource block in common.
4. The downlink transmission method of claim 1 , wherein the control information is located on a first set of the set of resource blocks for the terminal,
wherein the downlink data is located on a second set of the set of resource blocks for the terminal, and
wherein the first set and the second set share no common resource blocks.
5. 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.
6. The downlink reception method of claim 5 , further comprising transmitting terminal information including at least one of channel information of a subband, expected traffic of the terminal, and channel feedback information,
wherein the set of resource blocks for the terminal is identified based on the terminal information.
7. The downlink reception method of claim 5 , wherein the control information is located on a first set of the set of resource blocks for the terminal,
wherein the downlink data is located on a second set of the set of resource blocks for the terminal, and
wherein the first set and the second set have at least one resource block in common.
8. The downlink reception method of claim 5 , wherein the control information is located on a first set of the set of resource blocks for the terminal,
wherein the downlink data is located on a second set of the set of resource blocks for the terminal, and
wherein the first set and the second set share no common resource blocks.
9. 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.
10. The base station apparatus of claim 9 , wherein the transceiver is configured to receive, from the terminal, terminal information including at least one of channel information of a subband, expected traffic of the terminal, and channel feedback information, and
wherein the set of resource blocks for the terminal is identified based on the terminal information.
11. The base station apparatus of claim 9 , wherein the control information is located on a first set of the set of resource blocks for the terminal,
wherein the downlink data is located on a second set of the set of resource blocks for the terminal, and
wherein the first set and the second set have at least one resource block in common.
12. The base station apparatus of claim 9 , wherein the control information is located on a first set of the set of resource blocks for the terminal,
wherein the downlink data is located on a second set of the set of resource blocks for the terminal, and
wherein the first set and the second set share no common resource blocks.
13. 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.
14. The terminal of claim 13 , wherein the transceiver is configured to transmit terminal information including at least one of channel information of a subband, expected traffic of the terminal, and channel feedback information,
wherein the set of resource blocks for the terminal is identified based on the terminal information.
15. The terminal of claim 13 , wherein the control information is located on a first set of the set of resource blocks for the terminal,
wherein the downlink data is located on a second set of the set of resource blocks for the terminal, and
wherein the first set and the second set have at least one resource block in common.
16. The terminal of claim 13 , wherein the control information is located on a first set of the set of resource blocks for the terminal,
wherein the downlink data is located on a second set of the set of resource blocks for the terminal, and
wherein the first set and the second set share no common resource blocks.