PROCÉDÉ ET DISPOSITIF DE TRANSMISSION ET DE RÉCEPTION DE SIGNAL PAR UN TERMINAL DANS UN SYSTÈME DE COMMUNICATION SANS FIL AUQUEL UNE TECHNIQUE D'AGRÉGATION DE PORTEUSES EST APPLIQUÉE

摘要

The present application discloses a method of transmitting and receiving a signal by a terminal over a network in a wireless communication system. In particular, the method includes: receiving a downlink signal from the network through a downlink cell and transmitting an uplink signal to the network through a first uplink cell; receiving a specific message for changing an uplink cell from the network; and changing an uplink cell to a second uplink cell according to the specific message and transmitting the uplink signal to the network through the second uplink cell, wherein when changing the uplink cell, the downlink cell is maintained.