US Patent No. 10,397,953

METHOD AND APPARATUS FOR TRANSMITTING AND RECEVING RANDOM ACCESS CHANNEL


Patent No. 10,397,953
Issue Date August 27, 2019
Title Method And Apparatus For Transmitting And Receving Random Access Channel
Inventorship Eunsun Kim, Seoul (KR)
Hyunsoo Ko, Seoul (KR)
Sukhyon Yoon, Seoul (KR)
Kijun Kim, Seoul (KR)
Assignee LG Electronics Inc., Seoul (KR)

Claim of US Patent No. 10,397,953

1. A method of transmitting a random access channel (RACH) by a user equipment (UE) in a wireless communication system, the method comprising:receiving first information related to transmission of at least one synchronization signal block (SSB), and second information related to (i) a plurality of RACH resources in which to transmit the RACH, and (ii) a time period within which to transmit the RACH in the plurality of RACH resources;
determining a mapping of the at least one SSB to at least one first RACH resource among the plurality of RACH resources within the time period, wherein the mapping comprises repeated mappings of the at least one SSB over the at least one first RACH resource by a positive integer number of times within the time period; and
transmitting the RACH in a RACH resource among the at least one first RACH resource that is mapped to the at least one SSB,
wherein the plurality of RACH resources further comprises at least one second RACH resource that remains unmapped to the at least one SSB after the positive integer number of repeated mappings of the at least one SSB over the at least one first RACH resource, and
wherein the RACH is not transmitted in the at least one second RACH resource that remains unmapped to the at least one SSB.