METHOD FOR PERFORMING RANDOM ACCESS PROCESS AND DEVICE THEREFOR

    公开(公告)号:US20200245363A1

    公开(公告)日:2020-07-30

    申请号:US16637544

    申请日:2018-08-09

    Abstract: The present invention relates to a method for performing a random access process in a wireless communication system, and a device therefor and, more specifically, to a method and a device therefor, the method comprising the steps of: receiving narrowband physical random access channel (NPRACH) configuration information; and transmitting a random access preamble on the basis of the received NPRACH configuration information, wherein a sub-carrier spacing for the random access preamble is set to 3.75/N kHz, where N is an integer greater than or equal to 3, the random access preamble includes multiple symbol groups, the multiple symbol groups are transmitted on the basis of frequency-hopping, and a frequency-hopping distance between each of the multiple symbol groups includes a value between 3.75/N kHz and 6*3.75 kHz.

    METHOD FOR TRANSMITTING AND RECEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

    公开(公告)号:US20200245317A1

    公开(公告)日:2020-07-30

    申请号:US16828607

    申请日:2020-03-24

    Abstract: The present invention relates to a method for receiving a downlink signal and an apparatus therefor. Specifically, the method for receiving a downlink signal comprises the steps of: receiving first time offset information and second time offset information from a base station, wherein the first time offset information and the second time offset information each indicate the time offset between the reception time of a specific signal and the reception time of a specific channel associated with the specific signal, and the first time offset information is set to have a length shorter than that of the second time offset information; and monitoring the specific signal at a time position determined on the basis of one of the first time offset information and the second time offset information, wherein the one offset information is determined on the basis of the capability of a user device.

    METHOD FOR TRANSMITTING AND RECEIVING RANDOM ACCESS PREAMBLE IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

    公开(公告)号:US20200221507A1

    公开(公告)日:2020-07-09

    申请号:US16821367

    申请日:2020-03-17

    Abstract: Provided is a method for transmitting a random access preamble by a user equipment (UE) in a wireless communication system supporting a narrow band-Internet of things (NB-IoT). Specifically, the UE transmits the random access preamble to an eNB in a subcarrier allocated by the eNB according to a specific preamble structure and receives a random access response message from the eNB in response to the random access preamble. In this case, the random access preamble is repeatedly transmitted 16 times during a predetermined duration and then, a gap is inserted for a predetermined time and the predetermined duration is determined by multiplying a transmission duration in which the random access preamble is transmitted by the number of repeated transmission times.

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