Method for transmitting or receiving data in wireless communication system supporting full-duplex radio and device therefor
The present document discloses a method for transmitting or receiving a signal by a terminal in a wireless communication system, the method comprising the steps of: receiving information relating to a timing advance (TA) and an uplink (UL) grant from a base station; transmitting a radio resource control (RRC) message to the base station on the basis of the TA and UL grant; and receiving downlink control information (DCI) on the basis of the RRC message, wherein the RRC message comprises information indicating whether the terminal supports a full-duplex radio (FDR) mode, and the DCI comprises an additional field indicating whether the FDR mode is allowed for the terminal.
1 . A method by a user equipment (UE) comprising:
receiving synchronization information for downlink (DL) timing synchronization from a base station (BS);
receiving information for timing advance (TA) and uplink (UL) grant from the BS;
transmitting a signal including information that the UE supports full-duplex (FD) mode to the BS based on the TA and UL grant; and
receiving a physical downlink control channel (PDCCH) including downlink control information (DCI) including DL resource allocation information for the BS based on the signal,
wherein based on a bit value related to the FD mode being included in the DCI, the DCI further includes UL resource allocation information related to a specific neighboring BS, and index information for identifying the specific neighboring BS among at least one neighboring BS that performs a coordinated multi-point (CoMP) operation with the BS.
2 . The method of claim 1 , further comprising:
receiving a reference signal from the BS;
measuring channel quality of the at least one neighbor BS based on the reference signal; and
reporting the measured channel quality to the BS.
3 . The method of claim 1 , wherein
the UL resource allocation information includes information on at least one of a frequency domain bit field and a time domain bit field of UL.
4 . The method of claim 1 , wherein:
the DL resource allocation information includes information on at least one of a frequency domain bit field and a time domain bit field of DL.
5 . The method of claim 3 , wherein a size of the frequency domain bit field and the time domain bit field of the UL is represented as a start and length indicator value (SILV).
6 . The method of claim 3 , wherein:
a size of a bit field of an UL frequency domain is ┌log 2 (N RB DL ×(N RB DL +1)/2)┐;
a size of a bit field of an UL time domain is ┌log 2 (N symbol DL ×(N symbol DL +1)/2┐;
the N RB DL is a total length of resource blocks allocated to a physical downlink shared channel (PDSCH);
the N symbol DL is a total length of symbols allocated to the PDSCH; and
the DCI includes information on the PDSCH.
7 . The method of claim 4 , wherein:
a size of a bit field of a DL frequency domain is ┌log 2 (N RB UL ×(N RB UL +1)/2)┐;
a size of a bit field of a DL time domain is symbol ┌log 2 (N symbol UL ×(N symbol UL +1)/2)┐;
the N RB UL is a total length of resource blocks allocated to a physical uplink shared channel (PUSCH);
the N symbol UL is a total length of symbols allocated to the PUSCH; and
the DCI includes information on the PUSCH.
8 . The method of claim 1 , further comprising:
simultaneously performing reception of a DL signal and transmission of a UL signal.
9 . A user equipment (UE) for transmitting and receiving a signal in a wireless communication system, comprising:
a transceiver; and
a processor,
wherein:
the transceiver receives synchronization information for downlink (DL) timing synchronization from a base station (BS), receives information for timing advance (TA) and uplink (UL) grant from the BS, transmits a signal including information that the UE supports full-duplex (FD) mode to the BS based on the TA and UL grant, and receives a physical downlink control channel (PDCCH) including downlink control information (DCI) including DL resource allocation information for the BS based on the signal;
based on a bit value related to the FD mode being included in the DCI, the DCI further includes UL resource allocation information related to a specific neighboring BS, and index information for identifying the specific neighboring BS among at least one neighboring BS that performs a coordinated multi-point (COMP) operation with the BS.
10 . A base station (BS) for transmitting and receiving a signal in a wireless communication system, comprising:
a transceiver; and
a processor,
wherein:
the transceiver transmits synchronization information for downlink (DL) timing synchronization to a user equipment (UE), transmits information on timing advance (TA) and uplink (UL) grant to the UE, receives a signal including information that the UE supports full-duplex (FD) mode from the UE based on the TA and UL grant, and transmits a physical downlink control channel (PDCCH) including downlink control information (DCI) including DL resource allocation information for the BS based on the signal;
based on a bit value related to the FD mode being included in the DCI, the DCI further includes UL resource allocation information related to a specific neighboring BS, and index information for identifying the specific neighboring BS among at least one neighboring BS that performs a coordinated multi-point (COMP) operation with the BS.
11 . The BS of claim 10 , wherein the transceiver:
transmits a reference signal to the UE; and
receives information on channel quality from the UE,
wherein:
the channel quality is measured for the at least one neighbor BS based on the reference signal.