Signal transmission method and device using variable resource structure

    公开(公告)号:US11109398B2

    公开(公告)日:2021-08-31

    申请号:US16323314

    申请日:2017-05-25

    Abstract: A method for transmitting a signal in a wireless communication system is disclosed. To this end, any one of first category signals comprising a synchronization signal is mapped to a symbol having any one structure of a first resource structure and a second resource structure having mutually different symbol structures, and the mapped signal is transmitted, wherein any one of a time domain location and a frequency domain location in case the first category signal is mapped to a symbol having the first resource structure coincides with any one of a time domain location and a frequency domain location in case the first category signal is mapped to a symbol having the second resource structure.

    Method and apparatus for transmitting and receiving wireless signal in wireless communication system

    公开(公告)号:US11050545B2

    公开(公告)日:2021-06-29

    申请号:US16359454

    申请日:2019-03-20

    Abstract: The present invention relates to a wireless communication system, more specifically, to a method and an apparatus therefor, the method comprising the steps of: merging a first cell having a first TTI and a second cell having a second TTI, the length of the second TTI being N (N>1) times the length of the first TTI; receiving data scheduling information for the second cell in the first TTI of the first cell; and establishing data communication on the basis of the data scheduling information in the second TTI of the second cell corresponding to the first TTI of the first cell, wherein the first TTI for the first cell is any one TTI from among the N number of TTIs of the first cell corresponding to the second TTI of the second cell.

    Uplink signal transmission method and user equipment, and uplink signal reception method and base station

    公开(公告)号:US10958381B2

    公开(公告)日:2021-03-23

    申请号:US16336864

    申请日:2017-09-25

    Abstract: A base station receives uplink data and a first demodulation reference signal (DMRS) in a physical multiple access (MA) resource, and attempts to decode the uplink data, using the first DMRS. When the base station fails to decode the uplink data, the base station transmits an ACK/NACK for a first MA signature corresponding to the first DMRS among multiple MA signatures. When the ACK/NACK for the first MA signature is a NACK and the received power level of the first DMRS is higher than or equal to a threshold, the base station transmits a MA signature reselection command for the first MA signature together with the ACK/NACK. When the ACK/NACK for the first MA signature is a NACK and the received power level of the first DMRS is lower than the threshold, the base station transmits a MA signature maintenance command for the first MA signature together with the ACK/NACK.

    Reference signal having variable structure

    公开(公告)号:US10771212B2

    公开(公告)日:2020-09-08

    申请号:US16065113

    申请日:2017-07-27

    Abstract: A method for transmitting a data demodulation reference signal (DMRS) in a wireless communication system and a device therefor are disclosed. To this end, a basic DMRS is transmitted via the first OFDM symbol in a data transmission region of a predetermined subframe, and an additional DMRS is transmitted in the predetermined subframe in accordance with a level determined by a transmission environment, wherein the basic DMRS is characterized by being transmitted via the first OFDM symbol in the data transmission region of the predetermined subframe regardless of a transmission link, the structure of the subframe, and the transmission environment.

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