Method and apparatus for controlling discontinuous reception in mobile communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsSoeng Hun Kim, Gert-Jan Van Lieshout, Jae Hyuk Jang
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Abstract
The present invention relates to a method and apparatus for controlling discontinuous reception (DRX) in a mobile communication system. The method for controlling the DRX of a terminal in a mobile communication system includes the steps of: receiving DRX-setting information from a base station; determining whether or not a first condition is satisfied, the first condition being that a current subframe exists between a first time point when receiving the DRX-setting information and a second time point when an event triggering the application of a short DRX cycle occurs; and applying a preset DRX cycle when the first condition is satisfied.
Claims14
A method by a terminal in a mobile communication system, comprising:
- receiving discontinuous reception (DRX) configuration information from a base station;
- performing a DRX operation by applying a preset DRX cycle after the DRX configuration information is received;
- identifying whether a physical downlink channel (PDCCH) indicating a new transmission is received;
- identifying whether a channel quality indication (CQI) mask is configured;
- identifying whether the preset DRX cycle is changed into a short DRX cycle based on the PDCCH if the CQI mask is configured;
- and
- performing the DRX operation by applying the short DRX cycle if the preset DRX cycle is changed into the short DRX cycle.
A terminal in a mobile communication system, comprising:
- a transceiver configured to transmit and receive signals;
- and
- a controller configured to:
- control reception of discontinuous reception (DRX) configuration information from a base station,
- perform a DRX operation by applying a preset DRX cycle after the DRX configuration information is received,
- identify whether a physical downlink channel (PDCCH) indicating a new transmission is received,
- identify whether a channel quality indication (CQI) mask is configured,
- identify whether the preset DRX cycle is changed into a short DRX cycle based on the PDCCH if the CQI mask is configured, and
- perform the DRX operation by applying the short DRX cycle if the preset DRX cycle is changed into the short DRX cycle.
Dependencies are inferred from the claim text.