Method of transmitting ACK/NACK message in wireless communication system and terminal using same method
AssigneeLG Electronics Inc.
InventorsSeungmin Lee, Hanbyul Seo, Suckchel Yang
Life of this patent
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Abstract
The present invention relates to a Vehicle-to-X (V2X) operation method performed by a V2X terminal in a wireless communication system. Provided is the method comprising: receiving, from a base station, unicast data and multicast data, and transmitting, to the base station, an acknowledgment (ACK)/negative acknowledgement (NACK) for the unicast data and ACK/NACK for the multicast data, wherein the unicast data is data for the V2X terminal and the multicast data is data for a plurality of V2X terminals comprising the V2X terminal.
Claims14
A method for performing vehicle-to-X (V2X) operation in a wireless communication system, the method performed by a V2X terminal comprising:
- receiving, from a base station, unicast data and multicast data;
- and
- transmitting, to the base station, an acknowledgement (ACK)/negative acknowledgement (NACK) for the unicast data and ACK/NACK for the multicast data,
- wherein the unicast data is data for the V2X terminal and the multicast data is data for a plurality of V2X terminals including the V2X terminal, and
- wherein the V2X terminal transmits ACK/NACK for the unicast data and ACK/NACK for the multicast data according to a payload size determined based on whether only the unicast data is received or whether the unicast data and the multicast data are simultaneously received.
A Vehicle-to-X (V2X) user equipment (UE) comprising:
- a transceiver configured to transmit and receive a radio signal;
- and
- a processor coupled to the transceiver and configured to:
- receive, from a base station, unicast data and multicast data;
- and
- transmit, to the base station, an acknowledgement (ACK)/negative acknowledgement (NACK) for the unicast data and ACK/NACK for the multicast data,
- wherein the unicast data is data for the V2X UE and the multicast data is data for a plurality of V2X UEs including the V2X UE, and
- wherein the V2X UE transmits ACK/NACK for the unicast data and ACK/NACK for the multicast data according to a payload size determined based on whether only the unicast data is received or whether the unicast data and the multicast data are simultaneously received.
Dependencies are inferred from the claim text.