Method for locating terminal in wireless communication system and device therefor

    公开(公告)号:US11902928B2

    公开(公告)日:2024-02-13

    申请号:US17274747

    申请日:2019-09-16

    Abstract: Disclosed according to the present invention is a method for reporting a reference signal timing difference (RSTD) value by a terminal, in a wireless communication system. Specifically, the method may comprise: transmitting a random access preamble related to a synchronization signal/physical broadcast channel block (SS/PBCH block) received from a particular cell among multiple cells; requesting a radio resource control (RRC) connection to the particular cell on the basis of a random access response (RAR) received from the particular cell, to make establishment of the RRC connection to the particular cell; receiving, from a location server, a cell group identifier for a cell group including the multiple cells and independent cell information for each of the multiple cells; detecting second PRS sequences transmitted from the respective multiple cells on the basis of a first PRS sequence related to the cell group identifier; and reporting, to the location server, at least one piece of reference signal timing difference (RSTD) information acquired on the basis of the second PRS sequences and the independent cell information.

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