CPC H04W 74/0808 (2013.01) [H04W 72/04 (2013.01)] | 8 Claims |
1. A method of transmitting a sidelink signal by a user equipment (UE) in a wireless communication system supporting sidelink, the method comprising:
performing a synchronization for a sidelink communication;
receiving configuration information for configuring a resource pool including a plurality of sub-channels for sidelink communication;
determining a plurality of candidate resources based on reserved resources sensed from the resource pool and a received strength of a signal;
based on an attribute of a packet included in the sidelink signal, determining to perform additional carrier sensing for selecting a transmission resource from among the plural candidate resources;
based on performing the carrier sensing, selecting the transmission resource; and
transmitting the sidelink signal based on the selected transmission resource,
wherein the additional carrier sensing is performed based on a back-off counter that is backed off by a detection of a reception strength below a specific threshold for each of the plurality of sub-channels, and
wherein a counter value of the back-off counter is selected within a differently configured a counter range based on the attribute of the packet.
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