Method and apparatus for discontinuous transmission/reception operation for reducing power consumption in cellular system

A terminal, comprising:

• a processor;
• and
• a memory operably coupled to the processor,
• wherein the processor, when executing program instructions stored in the memory, is configured to:
• cause the terminal to receive a first message, the first message comprising first information on a first discontinuous reception (DRX) operation;
• and
• cause the terminal to perform the first DRX operation based on the first information while the terminal is in an active state,
• wherein the terminal is capable of receiving or transmitting one or more data packets in the active state, and
• wherein the first DRX operation comprises monitoring a downlink control channel to detect a first identifier during a first part of a first time period and not monitoring the downlink control channel during a second part of the first time period.

A communication device for a terminal, the communication device comprising:

• a processor;
• and
• a memory operably coupled to the processor,
• wherein the processor, when executing program instructions stored in the memory, is configured to:
• cause the terminal to receive a first message, the first message comprising first information on a first discontinuous reception (DRX) operation;
• and
• cause the terminal to perform the first DRX operation based on the first information while the terminal is in an active state,
• wherein the terminal is capable of receiving or transmitting one or more data packets in the active state, and
• wherein the first DRX operation comprises monitoring a downlink control channel to detect a first identifier during a first part of a first time period and not monitoring the downlink control channel during a second part of the first time period.