Method for beam management of communication device in wireless communication system and apparatus using method
View Patent ↗A beam management and control method of a communication device performing a relay function, a method of communicating with a UE of the communication device according to the quality of a link between the communication device and a base station, and a method of measuring the quality of a link between the communication device and the UE are provided.
1 . A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
receiving first downlink control information (DCI) transmitted from a base station; and
performing, with a communication device on the basis of the first DCI, communication in a first time resource determined based on a time offset and a second time resource in which the communication device receives second DCI from the base station,
wherein the communication device comprises a device that relays a signal transmitted between the UE and the base station,
the second DCI comprises a first field related to beam information and a second field related to a time resource, and
the communication is performed based on at least one of the first field or the second field.
2 . The method of claim 1 , wherein the communication is performed using a beam aperiodically determined on the basis of the second DCI.
3 . The method of claim 1 , wherein the time offset is determined based on capability of the communication device.
4 . The method of claim 1 , wherein the first field indicates one of a plurality of beams set for the UE, and the second field indicates one of a plurality of time resources set for the UE.
5 . The method of claim 4 , wherein information about the plurality of beams and the plurality of time resources is transmitted to the UE through radio resource control (RRC) signaling.
6 . The method of claim 4 , wherein the plurality of beams are associated with the plurality of time resources.
7 . The method of claim 6 , wherein each of the plurality of beams is mapped to one of the plurality of time resources.
8 . An apparatus comprising:
a user equipment (UE) comprising:
at least one memory storing instructions;
at least one transceiver; and
at least one processor configured to connect the at least one memory and the at least one transceiver,
wherein the at least one processor executes the instructions to:
receive first downlink control information (DCI) transmitted from a base station; and
perform, with a communication device on the basis of the first DCI, communication in a first time resource determined based on a time offset and a second time resource in which the communication device receives second DCI from the base station,
wherein the communication device comprises a device that relays a signal transmitted between the UE and the base station,
the second DCI comprises a first field related to beam information and a second field related to a time resource, and
the communication is performed based on at least one of the first field or the second field.
9 . The apparatus of claim 8 , wherein the communication is performed using a beam aperiodically determined on the basis of the second DCI.
10 . The apparatus of claim 8 , wherein the time offset is determined based on capability of the communication device.
11 . The apparatus of claim 8 , wherein the first field indicates one of a plurality of beams set for the UE, and the second field indicates one of a plurality of time resources set for the UE.
12 . The apparatus of claim 11 , wherein information about the plurality of beams and the plurality of time resources is transmitted to the UE through radio resource control (RRC) signaling.
13 . The apparatus of claim 11 , wherein the plurality of beams are associated with the plurality of time resources.
14 . The apparatus of claim 13 , wherein each of the plurality of beams is mapped to one of the plurality of time resources.
15 . A non-transitory computer readable medium readable by at least one computer and storing instructions executable by at least one processor, wherein the instructions are executed by the at least one processor to:
receive first downlink control information (DCI) transmitted from a base station; and
perform, with a communication device on the basis of the first DCI, communication in a first time resource determined based on a time offset and a second time resource in which the communication device receives second DCI from the base station,
wherein the communication device comprises a device that relays a signal transmitted between a user equipment (UE) and the base station,
the second DCI comprises a first field related to beam information and a second field related to a time resource, and
the communication is performed based on at least one of the first field or the second field.