US Patent No. 10,772,124

METHOD FOR TRANSMITTING OR RECEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME


Patent No. 10,772,124
Issue Date September 08, 2020
Title Method For Transmitting Or Receiving Signal In Wireless Communication System And Apparatus For Same
Inventorship Inkwon Seo, Seoul (KR)
Kijun Kim, Seoul (KR)
Eunsun Kim, Seoul (KR)
Joonkui Ahn, Seoul (KR)
Assignee LG ELECTRONICS INC., Seoul (KR)

Claim of US Patent No. 10,772,124

1. A method for transmitting an uplink signal by a user equipment (UE) in a wireless communication system, the method comprising:receiving, from a base station, information indicating one of a contention based transmission scheme or a contention free based transmission scheme; and
transmitting uplink data based on a transmission scheme indicated based on the received information,
wherein based on the indicated transmission scheme being the contention based transmission scheme, the UE transmits, in addition to the uplink data, information for identifying the UE, and the UE prioritizes transmission success of the information for identifying the UE, which is additionally transmitted, over transmission success of the uplink data,
wherein the UE determines that both the transmission of the uplink data and the transmission of the information for identifying the UE have been successfully performed based on an acknowledge (ACK) signal being received,
wherein the UE determines that the transmission of the information for identifying the UE has been successfully performed but the transmission of the uplink data has failed, based on a UE-specific negative ACK (NACK) signal being received, and
wherein the UE determines that both the transmission of the uplink data and the transmission of the information for identifying the UE have failed based on a broadcast NACK signal being received without reception of the ACK signal.