Method and apparatus for transceiving wireless signal in wireless communication system
The present invention relates to a wireless communication system, specifically to a method comprising the steps of: configuring a PCell of a licensed band and an SCell of an unlicensed band for a base station; receiving resource configuration information concerning the SCell by means of a physical downlink control channel (PDCCH) of the PCell; configuring a subframe set within a temporary time duration on the SCell on the basis of the resource configuration information; and communicating with the base station by means of the subframe set temporarily configured on the SCell, and to an apparatus for the method.
1. A method of performing a communication by an apparatus in a wireless communication system, the method comprising:
receiving a common downlink control information (DCI) for a plurality of unlicensed frequency bands,
wherein the common DCI includes a plurality of information related with channel occupancies of the plurality of unlicensed frequency bands; and
performing the communication in a contiguous time period of one of the plurality of unlicensed frequency bands, based on the common DCI,
wherein each of the plurality of information indicates whether a corresponding one of the plurality of unlicensed frequency bands is available or not until an end of the contiguous time period.
2. The method of claim 1 , further comprising:
receiving a preamble signal,
wherein the starting index of the contiguous time period is determined based on a sequence index of the preamble signal, and each sequence index is associated with an index of a respective time unit.
3. The method of claim 2 , wherein the starting index of the contiguous time period is determined based on a resource unit used for the reception of the preamble signal, and each resource unit is associated with an index of a respective time unit.
4. The method of claim 3 , wherein the resource unit includes a symbol or a resource element.
5. The method of claim 1 , wherein the contiguous time period includes consecutive time units.
6. An apparatus for use in a wireless communication system, the apparatus comprising:
a memory; and
a processor connected to the memory,
wherein the processor is configured to:
receive a common downlink control information (DCI) for a plurality of unlicensed frequency bands,
wherein the common DCI includes a plurality of information related with channel occupancies of the plurality of unlicensed frequency bands, and
perform a communication in a contiguous time period of one of the plurality of unlicensed frequency bands, based on the common DCI,
wherein each of the plurality of information indicates whether a corresponding one of the plurality of unlicensed frequency bands is available or not until an end of the contiguous time period.
7. The apparatus of claim 6 ,
wherein the processor is further configured to receive a preamble signal, and
wherein the starting index of the contiguous time period is determined based on a sequence index of the preamble signal, and each sequence index is associated with an index of a respective time unit.
8. The apparatus of claim 7 , wherein the starting index of the contiguous time period is determined based on a resource unit used for the reception of the preamble signal, and each resource unit is associated with an index of a respective time unit.
9. The apparatus of claim 8 , wherein the resource unit includes a symbol or a resource element.
10. The apparatus of claim 6 , further comprising: a radio frequency (RF) unit that includes a transceiver.
11. The apparatus of claim 6 , wherein the contiguous time period includes consecutive time units.