METHOD AND APPARATUS FOR PERFORMING CHANNEL SENSING IN A WIRELESS COMMUNICATION SYSTEM

摘要

Provided is a method for performing channel sensing in an unlicensed band in a wireless communication system, performed by a node performing channel sensing, the method comprising: receiving information about a known signal to be transmitted by at least one node of a group to which the node performing the channel sensing belongs to; detecting the known signal using the information about the known signal; canceling reception power of the known signal from measured reception power, during a time period in which the known signal is detected; comparing remaining reception power except for the reception power of the known signal with a threshold; and determining whether a channel is occupied or unoccupied according to a result of the comparison, wherein the information about the known signal includes at least one of a sequence of the known signal, transmission power of the known signal, a valid duration of the reception power of the known signal, a power offset between a transmission signal and the known signal during the valid duration, or a cancelation ratio of reception power of the transmission signal during the valid duration.

主权项

1. A method for performing channel sensing in an unlicensed band in a wireless communication system, performed by a node performing channel sensing, the method comprising:
receiving information about a known signal to be transmitted by at least one node of a group to which the node performing the channel sensing belongs to; detecting the known signal using the information about the known signal; canceling reception power of the known signal from measured reception power, during a time period in which the known signal is detected; comparing remaining reception power except for the reception power of the known signal with a threshold; and determining whether a channel is occupied or unoccupied according to a result of the comparison, wherein the information about the known signal includes at least one of a sequence of the known signal, transmission power of the known signal, a valid duration of the reception power of the known signal, a power offset between a transmission signal and the known signal during the valid duration, or a cancelation ratio of reception power of the transmission signal during the valid duration.