Method and apparatus for transmitting a packet in a wireless network

摘要

The present invention related to a method in which a transmitting device transmits a packet in a wireless network, wherein said method comprises: a step of receiving, from an upper layer, video data divided into a plurality of slices and compressed into one or more types of layers; a step of constructing a MAC packet such that information on the types of said one or more layers of the video data is included in a MAC header of the MAC packet; and a step of delivering the MAC packet to a lower layer to transmit the MAC packet to a receiving device.

主权项

1. A method for transmitting a packet at a transmission device in a wireless network, the method comprising:
receiving, by a medium access control (MAC) layer, video data divided into a plurality of slices and compressed into one or more layers from a higher layer, the one or more layers including a base layer that is mandatorily included in the compressed video data and one or more enhancement layers that are selectively included in the compressed video data; receiving, by the MAC layer, layer type information from the higher layer, the layer type information indicating one of the base layer, a first enhancement layer having a higher priority, and a second enhancement layer having a lower priority, wherein the layer type information informs a physical layer of a priority of each of the one or more layers; configuring, by the MAC layer, a medium access control (MAC) packet such that the MAC packet comprises the compressed video data and the layer type information, the layer type information being included in a MAC extension header of the MAC packet; transmitting, by the MAC layer, the MAC packet to the physical layer for transmission to a reception device; and scheduling, by the physical layer, a transmission mode of each layer included in the MAC packet based on the layer type information.