US-12621832-B2 - Method and device for transmitting/receiving wireless signal in wireless communication system

Abstract

The present invention relates to a wireless communication system, and may comprise receiving a first transport block in a first semi-persistent scheduling (SPS) resource allocated for an SPS operation, receiving scheduling information that indicates the retransmission of the first transport block, and receiving, based on a processing time of a user equipment, the first transport block (TB) in one or more second SPS resources using a hybrid automatic repeat request (HARQ) process related to the first SPS resource.

Inventors

• Duckhyun BAE
• Hyunho Lee

Assignees

• LG ELECTRONICS INC.

Dates

Publication Date

20260505

Application Date

20200504

Priority Date

20190503

Claims (5)

1. 1 . A method comprising: receiving configuration information related to semi-persistent scheduling (SPS), wherein the configuration information includes information related to a periodicity for the SPS and information related to the number of hybrid automatic repeat request (HARQ) processes configured for the SPS; receiving a downlink data based on the configuration information; receiving downlink control information (DCI) for scheduling retransmission of the downlink data; and receiving the retransmission of the downlink data based on a validity of the configuration information, wherein the configuration information is determined as valid, based on a value obtained by multiplying the number of the HARQ processes by the periodicity, which is greater than a processing time for the DCI.
2. 2 . The method of claim 1 , wherein the number of one or more resources based on the configuration information is determined based on the periodicity and the processing time.
3. 3 . The method of claim 2 , wherein, based on the processing time and the periodicity which are T and P, respectively, the number X of the one or more resources is determined by an equation of X=ceil(T/P).
4. 4 . A user equipment (UE) comprising: a memory storing instructions; a transceiver; and a processor, wherein the processor is configured to execute the instructions to perform operations comprising: receiving configuration information related to semi-persistent scheduling (SPS), wherein the configuration information includes information related to a periodicity for the SPS and information related to the number of hybrid automatic repeat request (HARQ) processes configured for the SPS, receiving a downlink data based on the configuration information, receiving downlink control information (DCI) for scheduling retransmission of the downlink data, and receiving the retransmission of the downlink data based on a validity of the configuration information, wherein the configuration information is determined as valid, based on a value obtained by multiplying the number of the HARQ processes by the periodicity, which is greater than a processing time for the DCI.
5. 5 . An apparatus for a user equipment, the apparatus comprising: at least one processor; and at least one computer memory operably connected to the at least one processor and configured to cause, based on execution, the at least one processor to perform operations comprising: receiving configuration information related to semi-persistent scheduling (SPS), wherein the configuration information includes information related to a periodicity for the SPS and information related to the number of hybrid automatic repeat request (HARQ) processes configured for the SPS, receiving a downlink data based on the configuration information, receiving downlink control information (DCI) for scheduling retransmission of the downlink data, and receiving the retransmission of the downlink data based on a validity of the configuration information, wherein the configuration information is determined as valid, based on a value obtained by multiplying the number of the HARQ processes by the periodicity, which is greater than a processing time for the DCI.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a National Stage application under 35 U.S.C. § 371 of International Application No. PCT/KR2020/005912, filed on May 4, 2020, which claims the benefit of Korean Application No. 10-2019-0052192, filed on May 3, 2019. The disclosures of the prior applications are incorporated by reference in their entirety. TECHNICAL FIELD The present disclosure relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting and receiving a wireless signal. BACKGROUND ART A variety of technologies, such as machine-to-machine (M2M) communication, machine type communication (MTC), and a variety of devices demanding high data throughput, such as smartphones and tablet personal computers (PCs), have emerged and spread. Accordingly, the volume of data throughput demanded to be processed in a cellular network has rapidly increased. In order to satisfy such rapidly increasing data throughput, carrier aggregation technology or cognitive radio technology for efficiently employing more frequency bands and multiple input multiple output (MIMO) technology or multi-base station (BS) cooperation technology for raising data capacity transmitted on limited frequency resources have been developed. As more and more communication devices have required greater communication capacity, there has been a need for enhanced mobile broadband (eMBB) communication relative to legacy radio access technology (RAT). In addition, massive machine type communication (mMTC) for providing various services at any time and anywhere by connecting a plurality of devices and objects to each other is one main issue to be considered in next-generation communication. Communication system design considering services/user equipment (UEs) sensitive to reliability and latency is also under discussion. The introduction of next-generation RAT is being discussed in consideration of eMBB communication, mMTC, ultra-reliable and low-latency communication (URLLC), and the like. DETAILED DESCRIPTION OF THE DISCLOSURE Technical Problems Provided are a method and apparatus for efficiently performing a wireless signal transmission and reception process. The objects to be achieved with the present disclosure are not limited to what has been particularly described hereinabove and other objects not described herein will be more clearly understood by persons skilled in the art from the following detailed description. Technical Solutions According to a first aspect of the present disclosure, provided herein is a method of receiving a signal by a user equipment (UE) in a wireless communication system, including receiving a first transport block (TB) on a first semi-persistent scheduling (SPS) resource allocated for an SPS operation, receiving scheduling information indicating retransmission of the first TB, and receiving the first TB on one or more second SPS resources using a hybrid automatic repeat request (HARQ) process associated with the first SPS resource, based on a processing time of the UE. According to a second aspect of the present disclosure, provided herein is a user equipment (UE) operating in a wireless communication system, including a transceiver and a processor. The processor may be configured to receive a first transport block (TB) on a first semi-persistent scheduling (SPS) resource allocated for an SPS operation, receive scheduling information indicating retransmission of the first TB, and receive the first TB on one or more second SPS resources using a hybrid automatic repeat request (HARQ) process associated with the first SPS resource, based on a processing time of the UE. According to a third aspect of the present disclosure, provided herein is an apparatus for a user equipment (UE), including at least one processor, and at least one computer memory operably connected to the at least one processor and configured to cause, based on execution, the at least one processor to perform an operation. The operation may include receiving a first transport block (TB) on a first semi-persistent scheduling (SPS) resource allocated for an SPS operation, receiving scheduling information indicating retransmission of the first TB, and receiving the first TB on one or more second SPS resources using a hybrid automatic repeat request (HARQ) process associated with the first SPS resource, based on a processing time of the UE. According to a fourth aspect of the present disclosure, provided herein is a method of transmitting a signal by a base station (BS) in a wireless communication system, including transmitting a first transport block (TB) on a first semi-persistent scheduling (SPS) resource allocated for an SPS operation, transmitting scheduling information indicating retransmission of the first TB, and retransmitting the first TB on one or more second SPS resources using a hybrid automatic repeat request (HARQ) process associated with the first SPS resource, based on a processin