Method and apparatus for transmitting and receiving signal in wireless communication system
A method and an apparatus for transmitting/receiving a signal in a wireless communication system are disclosed. A method for receiving a downlink signal according to one embodiment of the present disclosure, may comprise steps of: receiving, from a base station, configuration information related to transmission parameters for a plurality of signals; receiving, from the base station, an update message for updating a transmission parameter for a specific downlink signal; and receiving the downlink signal based on the updated transmission parameter. Transmission parameters for one or more signals including the specific downlink signal among the plurality of signals may be all identically updated by the update message.
1 . A method comprising:
receiving first information for configuring a plurality of spatial parameters for a plurality of signals;
receiving second information for indicating a spatial parameter for a downlink signal based on the first information; and
receiving the downlink signal based on the second information,
wherein, based on at least one signal of the plurality of signals being configured to refer to a reference signal related to a spatial parameter of the downlink signal prior to reception of the second information, a spatial parameter for the at least one signal is updated to be identical to the spatial parameter for the downlink signal.
2 . The method of claim 1 ,
wherein the at least one signal comprises at least one downlink signal being configured with the same spatial parameter as the downlink signal, among the plurality of signals.
3 . The method of claim 1 ,
wherein the at least one signal comprises at least one downlink signal and at least one uplink signal being configured with the same spatial parameter as the downlink signal, among the plurality of signals.
4 . The method of claim 1 ,
wherein at least one group for the plurality of signals is configured by a higher layer signaling, and
wherein the downlink signal and the at least one signal belong to the same group.
5 . The method of claim 1 ,
wherein spatial parameters for the plurality of signals are associated with a panel identifier, and
wherein an update for the spatial parameter includes an update of the panel identifier.
6 . The method of claim 1 ,
wherein an update is simultaneously applied to a plurality of component carriers (CCs) and/or a plurality of bandwidth parts (BWPs) by the second information.
7 . The method of claim 1 ,
wherein whether a spatial parameter for at least one signal is identically updated by the second information to be identical to the spatial parameter for the downlink signal is configured, through higher layer signaling.
8 . The method of claim 1 ,
wherein the spatial parameter includes at least one of a transmission configuration indication (TCI) state or spatial relation info.
9 . The method of claim 1 ,
wherein the signal includes at least one of a channel state information-reference signal (CSI-RS), a physical downlink control channel (PDCCH), a sounding reference signal (SRS), a physical uplink control channel (PUCCH), and/or a physical uplink shared channel (PUSCH).
10 . An apparatus comprising:
at least one transceiver for transmitting and receiving a wireless signal; and
at least one processor for controlling the at least one transceiver,
wherein the at least one processor configured to:
receive first information for configuring a plurality of spatial parameters for a plurality of signals;
receive second information for indicating a spatial parameter for a downlink signal based on the first information; and
receive the downlink signal based on the second information,
wherein, based on at least one signal of the plurality of signals being configured to refer to a reference signal related to a spatial parameter of the downlink signal prior to reception of the second information, a spatial parameter for the at least one signal is updated to be identical to the spatial parameter for the downlink signal.
11 . An apparatus comprising:
at least one transceiver for transmitting and receiving a wireless signal; and
at least one processor for controlling the at least one transceiver,
wherein the at least one processor configured to:
transmit first information for configuring a plurality of spatial parameters for a plurality of signals;
transmit second information for indicating a spatial parameter for a downlink signal based on the first information; and
transmit the downlink signal based on the second information,
wherein, based on at least one signal of the plurality of signals being configured to refer to a reference signal related to a spatial parameter of the downlink signal prior to reception of the second information, a spatial parameter for the at least one signal is updated to be identical to the spatial parameter for the downlink signal.