METHOD FOR TRANSMITTING AND RECEIVING DATA IN WIRELESS COMMUNICATION SYSTEM AND DEVICE FOR SUPPORTING SAME

    公开(公告)号:US20210212122A1

    公开(公告)日:2021-07-08

    申请号:US15999677

    申请日:2017-02-13

    IPC分类号: H04W74/08 H04W72/12

    摘要: The present invention relates to a method and a device for transmitting and receiving data in a wireless communication system. The present invention can provide a method and a device for transmitting to a network node a first preamble and a first request message for requesting random connection; as a response to the first request message, receiving a first response message comprising the index of a second preamble successfully received by the network node and a second identifier for indicating whether or not the first request message is decoded and contention resolution; and, while the connection with the network node has not been formed, transmitting first data to the network node in accordance with the index of the second preamble and the second identifier.

    METHOD AND APPARATUS FOR TRANSMITTING UPLINK DATA IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210211251A1

    公开(公告)日:2021-07-08

    申请号:US16087356

    申请日:2017-03-23

    IPC分类号: H04L5/00 H04W74/08 H04W72/12

    摘要: Provided are a method and an apparatus for transmitting uplink data in a wireless communication system. Specifically, a first terminal transmits a random access preamble for requesting a connectionless transmission. The first terminal receives a random access response comprising scheduling information of the uplink data. The first terminal transmits the uplink data, a reference signal selected by the terminal and terminal identification information of the terminal from a first overlapping resource utilized by a second terminal. The first terminal receives, as a response for the uplink data, a response signal comprising a terminal identification information field containing terminal identification information corresponding to each reference signal.

    METHOD AND APPARATUS FOR PREVENTING LOSS OF UPLINK DATA IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210168667A1

    公开(公告)日:2021-06-03

    申请号:US17267907

    申请日:2019-09-26

    IPC分类号: H04W36/00 H04W36/08

    摘要: A method and apparatus for preventing loss of uplink data in wireless communication system is provided. A central unit (CU) of an integrated access and backhaul (IAB)-donor receives, from a wireless device, uplink data through a source IAB-node. The CU of the IAB-donor receives, from the source IAB-node, a message which informs that uplink packets among the uplink data are remained on the source IAB-node, wherein the message is related to handover procedures of the wireless device from the source IAB-node to a target IAB-node. The CU of the IAB-donor proceeds the handover procedures, after receiving the uplink packets.

    METHOD AND APPARATUS FOR GENERATING SIGNAL FOR LOW LATENCY IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20200337059A1

    公开(公告)日:2020-10-22

    申请号:US16868096

    申请日:2020-05-06

    摘要: The present invention relates to a method and an apparatus for generating a signal for low latency in a wireless communication system. The method, according to one embodiment of the present invention, for a communication device generating a situation-reporting signal for low latency and transmitting the signal to a base station in a wireless communication system comprises the steps of: generating the situation-reporting signal on the basis of a pre-set, specific situation recognized by the communication device; and transmitting the generated situation-reporting signal to the base station, wherein the situation-reporting signal may be generated so as to have a subcarrier spacing which is a pre-set number of times larger than a subcarrier spacing of a legacy communication system, the pre-set number being an integer.

    METHOD AND DEVICE FOR RECEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM TO WHICH MULTIPLEX TRANSMISSION TECHNIQUE IS APPLIED

    公开(公告)号:US20190260424A1

    公开(公告)日:2019-08-22

    申请号:US16307893

    申请日:2017-06-19

    IPC分类号: H04B7/024 H04L27/26

    摘要: A method and device for receiving a signal in a wireless communication system to which a multiplex transmission technique is applied are provided. The wireless communication system proposed herein suggests a method for increasing the receipt reliability of a terminal with respect to a multiplex transmission activation indicator indicating the start of multiplex transmission. Particularly, a terminal checks the receipt of a multiplex transmission activation indicator transmitted, from a first base station, for every predetermined subframe. If the terminal succeeds in receiving the multiplex transmission activation indicator, an ACK signal associated with the multiplex transmission activation indicator is transmitted to the first base station. Here, the multiplex transmission activation indicator indicates that the first base station and a second base station are capable of transmitting the same data for a predetermined time together.