Patent ID: 8325640
Filing Date: 2012-12-04
Classification: H04W,Y02D

Abstract:
1. A method of establishing a sleep mode operation through primary and active secondary carriers in a communication system of transmitting and receiving data using a multi-carrier including a primary carrier for transmitting and receiving control information and data and a secondary carrier using a radio frequency (RF) different from the primary carrier, the method comprising: transmitting, through the primary carrier, to a terminal, a sleep cycle ID (SCID), a listening window, and traffic indication inactive information, the traffic indication inactive information indicating that an indication (TRF-IND) as to whether traffic is generated is not transferred to the terminal; transmitting downlink data to the terminal through the primary carrier and the active secondary carrier during the listening window; and sending, through the primary carrier, to the terminal, an instruction (indication) to end (terminate) the downlink data transmission over the active secondary carrier when the data transmitting is completed.