Method and device for controlling transmission or reception of data in wireless communication system

An operating method of a reception user equipment (UE) in a wireless communication system, the operating method comprising:

• receiving, from a transmission UE, a message comprising a parameter for transmission and reception of a point cloud corresponding to an object, wherein the parameter for transmission and reception of the point cloud comprises a parameter associated with a direction of the object, a space parameter associated with the object, a first indicator indicating whether to use the parameter associated with the direction of the object, and a second indicator indicating whether to use the space parameter associated with the object;
• determining an application parameter of the reception UE, based on a channel state of the reception UE and the parameter for transmission and reception of the point cloud;
• transmitting, to the transmission UE, a response message comprising the determined application parameter of the reception UE;
• receiving, from the transmission UE, the point cloud, wherein the point cloud is compressed based on the application parameter of the reception UE;
• displaying an image associated with the object, based on the compressed point cloud;
• and
• in case of deterioration of the channel state transmitting to the transmission UE, a temporary maximum media bit-rate request (TMMBR) message requesting to decrease bitrate.

A transmission user equipment (UE) in a wireless communication system, the transmission UE comprising:

• a transceiver;
• and
• at least one processor configured to:
• obtain a point cloud corresponding to an object,
• transmit, to a reception UE via the transceiver, a message comprising a parameter for transmission and reception of the point cloud, wherein the parameter for transmission and reception of the point cloud comprises a parameter associated with a direction of the object, a space parameter associated with the object, a first indicator indicating whether to use the parameter associated with the direction of the object and a second indicator indicating whether to use the space parameter associated with the object,
• receive, from the reception UE via the transceiver, a response message comprising an application parameter of the reception UE, wherein the application parameter of the reception UE indicates a parameter that is applicable to the reception UE based on a channel state of the reception UE and the parameter for transmission and reception of the point cloud,
• compress the point cloud, based on the application parameter of the reception UE, and
• transmit, to the reception UE via the transceiver, the compressed point cloud.

A reception user equipment (UE) in a wireless communication system, the reception UE comprising:

• a transceiver;
• and
• at least one processor configured to:
• receive, from a transmission UE, a message comprising a parameter for transmission and reception of a point cloud corresponding to an object, wherein the parameter for transmission and reception of the point cloud comprises a parameter associated with a direction of the object, a space parameter associated with the object, a first indicator indicating whether to use the parameter associated with the direction of the object, and a second indicator indicating whether to use the space parameter associated with the object,
• determine an application parameter of the reception UE, based on a channel state of the reception UE and the parameter for transmission and reception of the point cloud,
• transmit, to the transmission UE, a response message comprising the determined application parameter of the reception UE,
• receive, from the transmission UE, the point cloud, wherein the point cloud is compressed based on the application parameter of the reception UE,
• display an image associated with the object, based on the compressed point cloud, and
• in case of deterioration of the channel state transmit, to the transmission UE, a temporary maximum media bit-rate request (TMMBR) message requesting to decrease bitrate.