US-12628005-B2 - Method and apparatus for transmitting and receiving signal in wireless communication system

US12628005B2US 12628005 B2US12628005 B2US 12628005B2US-12628005-B2

Abstract

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.

Inventors

Seongwon GO
Jiwon Kang
Kyuseok Kim
Jaehoon Chung

Assignees

LG ELECTRONICS INC.

Dates

Publication Date: 20260512
Application Date: 20210621
Priority Date: 20200622

Claims (11)

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.

Description

TECHNICAL FIELD The present disclosure relates to a wireless communication system, and in more detail, relates to a method and an apparatus of transmitting and receiving an uplink signal and/or a downlink signal in a wireless communication system. BACKGROUND A mobile communication system has been developed to provide a voice service while guaranteeing mobility of users. However, a mobile communication system has extended even to a data service as well as a voice service, and currently, an explosive traffic increase has caused shortage of resources and users have demanded a faster service, so a more advanced mobile communication system has been required. The requirements of a next-generation mobile communication system at large should be able to support accommodation of explosive data traffic, a remarkable increase in a transmission rate per user, accommodation of the significantly increased number of connected devices, very low End-to-End latency and high energy efficiency. To this end, a variety of technologies such as Dual Connectivity, Massive Multiple Input Multiple Output (Massive MIMO), In-band Full Duplex, Non-Orthogonal Multiple Access (NOMA), Super wideband Support, Device Networking, etc. have been researched. SUMMARY A technical object of the present disclosure is to provide a method and an apparatus for transmitting and receiving an uplink signal and/or a downlink signal. In addition, an additional technical object of the present disclosure is to provide a method and an apparatus for updating a transmission parameter of an uplink signal and/or a downlink signal (e.g., a transmission/reception beam of a terminal, a transmission configuration indication state, spatial relation info, a quasi co-locate (QCL) type D reference signal, etc.). The technical objects to be achieved by the present disclosure are not limited to the above-described technical objects, and other technical objects which are not described herein will be clearly understood by those skilled in the pertinent art from the following description. A method for receiving a downlink signal in a wireless communication system according to an aspect of the present disclosure may comprise: 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. A method for transmitting a downlink signal in a wireless communication system according to an additional aspect of the present disclosure may comprise: transmitting, to a terminal, configuration information related to transmission parameters for a plurality of signals; transmitting, to the terminal, an update message for updating a transmission parameter for a specific downlink signal; and transmitting 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. A method for transmitting an uplink signal in a wireless communication system according to an additional aspect of the present disclosure may comprise: 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 uplink signal; and transmitting the uplink signal based on the updated transmission parameter. Transmission parameters for one or more signals including the specific uplink signal among the plurality of signals may be all identically updated by the update message. A method for receiving an uplink signal in a wireless communication system according to an additional aspect of the present disclosure may comprise: transmitting, to a terminal, configuration information related to transmission parameters for a plurality of signals; transmitting, to the terminal, an update message for updating a transmission parameter for a specific uplink signal; and receiving the uplink signal based on the updated transmission parameter. Transmission parameters for one or more signals including the specific uplink signal among the plurality of signals may be all identically updated by the update message. According to an embodiment of the present disclosure, by updating transmission parameters for multiple signals (uplink channel/reference signal and/or downlink channel/reference signal) only with an update instruction for a single transmission parameter (e.g., transmission/reception beam of a terminal, transmission configuration indication state, spatial relation info, quasi co-locate (QCL)