Method and apparatus for transmitting grant-free based uplink data in wireless communication system

    公开(公告)号:US11540311B2

    公开(公告)日:2022-12-27

    申请号:US16473740

    申请日:2017-12-26

    Abstract: Provided are a method and an apparatus for transmitting grant-free based uplink data in a wireless communication system. Specifically, a terminal receives, from a base station, allocation information for a grant-free uplink resource that is semi-statically allocated. The terminal receives, from the base station, allocation information for a first reference signal used for initial transmission of uplink data and allocation information for a second reference signal used for retransmission of the uplink data. The terminal transmits the uplink data through the grant-free uplink resource by using the first reference signal. If decoding of the uplink data fails, the terminal receives, from the base station, an uplink grant corresponding to the second reference signal. The terminal retransmits the uplink data by using the second reference signal on the basis of the uplink grant. The first reference signal is commonly allocated to the terminal, and the second reference signal is specifically allocated to the terminal.

    Method and device for receiving downlink signal in wireless communication system

    公开(公告)号:US11533721B2

    公开(公告)日:2022-12-20

    申请号:US17207138

    申请日:2021-03-19

    Abstract: A method for receiving a downlink signal in a wireless communication system according to an embodiment of the present invention is performed by a terminal, and may comprise the steps of: receiving, from a base station, a dynamic change configuration into a predetermined transmission scheme related to a short transmission time interval (sTTI)-based downlink operation; when the dynamic change configuration is received, detecting a downlink control information format including a field related to the dynamic change; and when a value of the field indicates the predetermined transmission scheme, receiving a signal on a downlink data channel according to the predetermined transmission scheme.

    Method for transmitting wireless signals and apparatus therefor

    公开(公告)号:US11445486B2

    公开(公告)日:2022-09-13

    申请号:US16914047

    申请日:2020-06-26

    Abstract: The present invention relates to a wireless communication system and, more particularly, to a method and an apparatus therefor, the method comprising: a step of acquiring a periodically allocated PUSCH resource, wherein the periodically allocated PUSCH resource is used for a transmission of a first PUSCH; a step of performing a procedure for transmitting uplink control information if transmission of the uplink control information is required at the transmission timing of the first PUSCH; and a step of transmitting the uplink control information, wherein if an aperiodically allocated second PUSCH does not exist at the transmission timing of the first PUSCH, the uplink control information is transmitted via the first PUSCH, and if the aperiodically allocated second PUSCH exists at the transmission timing of the first PUSCH, the uplink control information is transmitted via the second PUSCH.

    Method for performing uplink transmission in a wireless communication system and apparatus therefor

    公开(公告)号:US11438885B2

    公开(公告)日:2022-09-06

    申请号:US17159311

    申请日:2021-01-27

    Abstract: A method of performing, by a user equipment (UE), uplink transmission in a wireless communication system. The method includes: receiving, from a base station (BS), a plurality of RRC configuration information related to downlink control information (DCI); receiving, from the BS, first DCI for the uplink transmission, wherein the first DCI includes a field related to a usage of the first DCI; applying parameters of a specific RRC configuration information, among the plurality of RRC configuration information, to the first DCI based on the usage of the first DCI indicated by the field of the first DCI, wherein based on a size of the field of the first DCI being smaller than a field size of second DCI for PUSCH transmission, the field of the first DCI is zero bit padded and decoded; and performing the uplink transmission to the BS based on the first DCI.

    Method for transmitting uplink channel in wireless communication system and device for supporting the same

    公开(公告)号:US11412461B2

    公开(公告)日:2022-08-09

    申请号:US16970943

    申请日:2019-03-05

    Abstract: The present specification suggests a method for transmitting an uplink channel in a wireless communication system and a device supporting same. More particularly, a method for transmitting, by a terminal, a physical uplink control channel (PUCCH) in a wireless communication system, comprises the steps of: receiving a physical uplink shared channel (PDSCH) from a base station; and transmitting, to the base station, the PUCCH including hybrid automatic retransmit request (HARQ)-acknowledgment (ACK) information for the PDSCH, wherein the PDSCH includes a first PDSCH and a second PDSCH, and the transmission power of the PUCCH is determined on the basis of a priority between the first PDSCH and the second PDSCH and/or a bit configuration of the HARQ-ACK information.

    Method and device for controlling transmission of sounding reference signal in wireless access system supporting machine type communication

    公开(公告)号:US11362782B2

    公开(公告)日:2022-06-14

    申请号:US16895876

    申请日:2020-06-08

    Abstract: The present invention provides methods for controlling transmission of a sounding reference signal (SRS) in a wireless access system supporting machine type communication (MTC) and devices for supporting same. A method for controlling transmission of an SRS by an MTC terminal in a wireless access system supporting MTC, according to an embodiment of the present invention, can comprise the steps of: receiving an upper layer signal comprising information about an SRS which is to be repeatedly transmitted; configuring the SRS on the basis of the information about the SRS; and transmitting the SRS by means of a subband to which a physical uplink shared channel (PUSCH) is allocated and which is being frequency hopped. The subband comprises six physical resource blocks (PRB), and the SRS can be sequentially transmitted to the subband being frequency hopped.

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