METHOD FOR TRANSMITTING AND RECEIVING RANDOM ACCESS CHANNEL AND DEVICE FOR TRANSMITTING AND RECEIVING Russian patent published in 2020 - IPC H04W74/08 H04W56/00 

FIELD: physics.

SUBSTANCE: invention relates to a method for transmitting a random access channel (RACH) through user equipment (UE) in a wireless communication system. Method comprises steps of: receiving first information relating to transmission of at least one synchronization signal unit (SBB) and second information relating to (i) a plurality of RACH resources, wherein a RACH is transmitted, and (ii) a time period during which the RACH is transmitted in the plurality of RACH resources; determining mapping of at least one SBB to at least one first RACH resource among a plurality of RACH resources for a period of time, wherein display comprises repeated displays of at least one SBB by means of at least one first RACH resource an integer number of times for a period of time; and transmitting the RACH in the RACH resource among at least one first RACH resource which is mapped to at least one SBB. At that, multiple RACH resources also contains at least one second RACH resource, which remains not displayed in at least one SBB after repeated mappings an integer number of times of at least one SBB by means of at least one first RACH resource, and wherein the RACH is not transmitted in the at least one second RACH resource, which remains non-displayed in the at least one SBB.

EFFECT: technical result consists in improvement of efficiency of using RACH resource.

19 cl, 29 dwg, 14 tbl