Method and apparatus for transmitting and receiving uplink data in wireless communication system

    公开(公告)号:US11271630B2

    公开(公告)日:2022-03-08

    申请号:US16791655

    申请日:2020-02-14

    Abstract: Disclosed herein are a method and a device for transmitting a message in an initial access procedure by a user equipment (UE) in a wireless communication system. According to the present disclosure, a UE may transmit to a base station capability information associated with transmission power of the UE and the information may include a subset including at least one transmit precoding matrix indicator (TPMI) supported by the UE. The UE may receive first control information for transmitting a message associated with an initial access and the control information may include a TPMI used for the UE to transmit the message. Thereafter, the UE may transmit to the base station the message by using transmission power determined based on the TPMI and the transmission power may be determined according to whether the TPMI is included in the at least one TPMI.

    Method for determining modulation and coding scheme in wireless communication system, and device therefor

    公开(公告)号:US11121799B2

    公开(公告)日:2021-09-14

    申请号:US16483711

    申请日:2017-07-26

    Abstract: The present invention provides a method for determining a modulation and coding scheme (MCS) to be applied to data in a wireless communication system, and a device therefor. Specifically, the method may comprise the steps of: reporting, to a base station, channel state information including a first measurement value related to a channel state between a terminal and the base station; receiving at least one downlink reference signal from the base station; calculating a second measurement value related to the channel state by using the received at least one downlink reference signal; when the second measurement values is equal to or smaller than a preconfigured threshold value in comparison with the first measurement value, transmitting, to the base station, a specific uplink signal requesting a change of an MCS designated to downlink data; and receiving the downlink data, to which the changed MCS has been applied, from the base station.

    Method for transmitting and receiving multicast/broadcast data in wireless communication system, and apparatus therefor

    公开(公告)号:US11115172B2

    公开(公告)日:2021-09-07

    申请号:US16310278

    申请日:2017-06-14

    Abstract: Disclosed are a method for transmitting and receiving multicast/broadcast data in a wireless communication system, and an apparatus therefore. Specifically, a method by which a station transmits a reference signal for demodulating multicast/broadcast data in a wireless communication system comprises the steps of: mapping a first reference signal within a control channel region consisting of at least one symbol used for transmission of a control channel within a subframe; and mapping a second reference signal transmitted from multiple cells for demodulating a multicast/broadcast channel within a data channel region excluding the control channel region within at least one resource block which has been allocated for transmission of the multicast/broadcast channel which carries the multicast/broadcast data transmitted from the multiple cells within the subframe, wherein scheduling information for allocating at least one resource block where the multicast/broadcast channel is mapped may be transmitted in the control channel.

    Method for transmitting and receiving data in wireless communication system and apparatus therefor

    公开(公告)号:US11101951B2

    公开(公告)日:2021-08-24

    申请号:US16338036

    申请日:2017-09-29

    Abstract: Provided is a method in which a user equipment (UE) receives data in a wireless communication system including receiving downlink control information related to downlink data transmission from at least one base station; determining receiving beams for simultaneously receiving the downlink data transmitted independently through a plurality of layer groups from a plurality of base stations including the at least one base station based on the downlink control information; and simultaneously receiving the downlink data from the plurality of base stations using the determined receiving beams, wherein the downlink control information includes beam index information about the receiving beams, and the beam index information is instructed for each of the plurality of layer groups.

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