Transmission method of downlink signal in wireless communication system and transmission apparatus therefor
The present invention provides a method for a base station to transmit a downlink signal in a wireless communication system, the method comprising: allocating a resource to a downlink signal; and transmitting the downlink signal using the allocated resource. In the downlink signal transmission method and apparatus thereof, a resource for transmitting a Physical Downlink Shared Channel (PDSCH) among the downlink signals is allocated from a specific OFDM symbol that is fixed within a subframe.
1. A method for receiving a PDSCH (Physical Downlink Shared Channel) signal by a communication apparatus in a wireless communication system, comprising:
receiving a RRC (Radio Resource Control) signal including information used for identifying a region from which the PDSCH signal is received;
receiving a PDCCH (Physical Downlink Control Channel) signal including resource allocation information for the PDSCH signal; and
receiving the PDSCH signal from a starting OFDM (Orthogonal Frequency Division Multiplexing) symbol of the region,
wherein the PDCCH signal is received on a first downlink component carrier and the PDSCH signal is received on a second downlink component carrier which is different from the first downlink component carrier.
2. The method of claim 1 , wherein the information in the RRC signal indicates the starting OFDM symbol from which the PDSCH signal is received.
3. The method of claim 1 , wherein the information in the RRC signal is commonly applied to a plurality of downlink component carriers.
4. The method of claim 3 , further comprising:
receiving another PDCCH signal on the first downlink component carrier, and
receiving the PDSCH signal from the starting OFDM symbol on a third downlink component carrier different from the first downlink component carrier.
5. A communication apparatus for receiving a PDSCH (Physical Downlink Shared Channel) signal in a wireless communication system, comprising:
a RF (Radio Frequency) module; and
a processor,
wherein the processor is configured to:
receive a RRC (Radio Resource Control) signal including information used for identifying a region from which the PDSCH signal is received;
receive a PDCCH (Physical Downlink Control Channel) signal including resource allocation information for the PDSCH signal; and
receive the PDSCH signal from a starting OFDM (Orthogonal Frequency Division Multiplexing) symbol of the region,
wherein the PDCCH signal is received on a first downlink component carrier and the PDSCH signal is received on a second downlink component carrier which is different from the first downlink component carrier.
6. The communication apparatus of claim 5 , wherein the information in the RRC signal indicates the starting OFDM symbol from which the PDSCH signal is received.
7. The communication apparatus of claim 5 , wherein the information in the RRC signal is commonly applied to a plurality of downlink component carriers.
8. The communication apparatus of claim 7 , wherein the processor is further configured to receive another PDCCH signal on the first downlink component carrier, and receive the PDSCH signal from the starting OFDM symbol on a third downlink component carrier different from the first downlink component carrier.
9. A method for transmitting a PDSCH (Physical Downlink Shared Channel) signal by a transmitter in a wireless communication system, comprising:
transmitting a RRC (Radio Resource Control) signal including information used for identifying a region from which the PDSCH signal is transmitted;
transmitting a PDCCH (Physical Downlink Control Channel) signal including resource allocation information for the PDSCH signal; and
transmitting the PDSCH signal from a starting OFDM (Orthogonal Frequency Division Multiplexing) symbol of the region,
wherein the PDCCH signal is transmitted on a first downlink component carrier and the PDSCH signal is transmitted on a second downlink component carrier which is different from the first downlink component carrier.
10. The method of claim 9 , wherein the information in the RRC signal indicates the starting OFDM symbol from which the PDSCH signal is received.
11. The method of claim 9 , wherein the information in the RRC signal is commonly applied to a plurality of downlink component carriers.
12. The method of claim 11 , further comprising:
transmitting another PDCCH signal on the first downlink component carrier, and
transmitting the PDSCH signal from the starting OFDM symbol on a third downlink component carrier different from the first downlink component carrier.
13. A transmitter for transmitting a PDSCH (Physical Downlink Shared Channel) signal in a wireless communication system, comprising:
a RF (Radio Frequency) module; and
a processor,
wherein the processor is configured to:
transmit a RRC (Radio Resource Control) signal including information used for identifying a region from which the PDSCH signal is transmitted;
transmit a PDCCH (Physical Downlink Control Channel) signal including resource allocation information for the PDSCH signal; and
transmit the PDSCH signal from a starting OFDM (Orthogonal Frequency Division Multiplexing) symbol of the region,
wherein the PDCCH signal is transmitted on a first downlink component carrier and the PDSCH signal is transmitted on a second downlink component carrier which is different from the first downlink component carrier.
14. The transmitter of claim 13 , wherein the information in the RRC signal indicates the starting OFDM symbol from which the PDSCH signal is transmitted.
15. The transmitter of claim 13 , wherein the information in the RRC signal is commonly applied to a plurality of downlink component carriers.
16. The transmitter of claim 15 , wherein the processor is further configured to transmit another PDCCH signal on the first downlink component carrier, and transmit the PDSCH signal from the starting OFDM symbol on a third downlink component carrier different from the first downlink component carrier.