Using DTX and DRX in a wireless communication system
Systems, methodologies, and devices are described that can facilitate reducing power consumption associated with mobile devices. A mobile device can utilize a sleep mode controller that can facilitate selecting and/or switching to a desired sleep mode based in part on predefined sleep mode criteria. The sleep modes can include a non-sleep mode, light sleep mode, and/or deep sleep mode. The mobile device can employ an analyzer to evaluate information related to explicit signals, implicit signals, and/or the current sleep mode to determine whether a condition is met based in part on the predefined sleep mode criteria such that a transition to a different sleep mode is to be performed. If such a condition is met, the sleep mode controller can facilitate transitioning from the current sleep mode to a different sleep mode to facilitate reducing power consumption by the mobile device.
1. A method of wireless communication, comprising:
receiving wireless signalling including discontinuous reception (DRX) configuration parameters, the DRX configuration parameters defining a DRX configuration of a mobile device;
implicitly activating the DRX configuration of the mobile device after receiving the DRX configuration parameters when the mobile device does not transmit and/or receive data for a configurable amount of time;
cycling between a first discontinuous receive (DRX) cycle off period and a first DRX cycle on period in a first sleep mode of a mobile device;
cycling between a first discontinuous transmit (DTX) cycle off period and a first DTX cycle on period in the first sleep mode;
transitioning from the first sleep mode to a second sleep mode of the mobile device;
cycling between a second DRX cycle off period and a second DRX cycle on period in the second sleep mode, the second DRX cycle on period having a different duration than the first DRX cycle on period;
cycling between a second DTX cycle off period and a second DTX cycle on period in the second sleep mode, the second DTX cycle on period having a different duration than the first DTX cycle on period;
monitoring transmission from a base station only during the DRX cycle on periods; and
turning off radio frequency generation of the mobile device during the DTX cycle off periods.
2. The method of claim 1 , in which at least one of the DRX cycle on periods, the DRX cycle off periods, the DTX cycle on periods and the DTX cycle off periods is configurable.
3. The method of claim 1 , further comprising:
configuring a length of at least one of the DRX cycle on periods, the DRX cycle off periods, the DTX cycle on periods and the DTX cycle off periods in response to respective channel quality index (CQI) attributes.
4. An apparatus operable in a wireless communication system, the apparatus comprising:
a memory; and
at least one processor coupled to the memory and configured:
to receive wireless signalling including discontinuous reception (DRX) configuration parameters, the DRX configuration parameters defining a DRX configuration of a mobile device;
to implicitly activate the DRX configuration of the mobile device after receiving the DRX configuration parameters when the mobile device does not transmit and/or receive data for a configurable amount of time;
to cycle between a first discontinuous receive (DRX) cycle off period and a first DRX cycle on period in a first sleep mode of a mobile device;
to cycle between a first discontinuous transmit (DTX) cycle off period and a first DTX cycle on period in the first sleep mode;
to transition from the first sleep mode to a second sleep mode of the mobile device;
to cycle between a second DRX cycle off period and a second DRX cycle on period in the second sleep mode, the second DRX cycle on period having a different duration than the first DRX cycle on period;
to cycle between a second DTX cycle off period and a second DTX cycle on period in the second sleep mode, the second DTX cycle on period having a different duration than the first DTX cycle on period;
to monitor transmission from a base station only during the DRX cycle on periods; and
to turn off radio frequency generation of the mobile device during the DTX cycle off periods.
5. The apparatus of claim 4 , in which at least one of the DRX cycle on periods, the DRX cycle off periods, the DTX cycle on periods and the DTX cycle off periods is configurable.
6. The apparatus of claim 4 , in which said at least one processor is further configured:
to configure a length of at least one of the DRX cycle on periods, the DRX cycle off periods, the DTX cycle on periods and the DTX cycle off periods in response to respective channel quality index (CQI) attributes.
7. A computer program product for wireless communications in a wireless network, comprising:
a non-transitory computer-readable medium having program code recorded thereon, the program code comprising:
program code to receive wireless signalling including discontinuous reception (DRX) configuration parameters, the DRX configuration parameters defining a DRX configuration of a mobile device;
program code to implicitly activate the DRX configuration of the mobile device after receiving the DRX configuration parameters when the mobile device does not transmit and/or receive data for a configurable amount of time;
program code to cycle between a first discontinuous receive (DRX) cycle off period and a first DRX cycle on period in a first sleep mode of a mobile device;
program code to cycle between a first discontinuous transmit (DTX) cycle off period and a first DTX cycle on period in the first sleep mode;
program code to transition from the first sleep mode to a second sleep mode of the mobile device;
program code to cycle between a second DRX cycle off period and a second DRX cycle on period in the second sleep mode, the second DRX cycle on period having a different duration than the first DRX cycle on period;
program code to cycle between a second DTX cycle off period and a second DTX cycle on period in the second sleep mode, the second DTX cycle off-on period having a different duration than the first DTX cycle on period;
program code to monitor transmission from a base station only during the DRX cycle on periods; and
program code to turn off radio frequency generation of the mobile device during the DTX cycle off periods.
8. The computer program product of claim 7 , in which the program code further comprises:
program code to configure a length of at least one of the DRX cycle on periods, the DRX cycle off periods, the DTX cycle on periods and the DTX cycle off periods in response to respective channel quality index (CQI) attributes.
9. An apparatus for wireless communication, comprising: at least one processor; and
at least one memory in communication with at least one processor, at least one processor including:
means for receiving wireless signalling including discontinuous reception (DRX) configuration parameters from an eNodeB, the DRX configuration parameters defining a DRX configuration of a mobile device;
means for implicitly activating the DRX configuration of the mobile device after receiving the DRX configuration parameters when the mobile device does not transmit and/or receive data for a configurable amount of time;
means for cycling between a first discontinuous receive (DRX) cycle off period and a first DRX cycle on period in a first sleep mode of a mobile device;
means for cycling between a first discontinuous transmit (DTX) cycle off period and a first DTX cycle on period in the first sleep mode;
means for transitioning from the first sleep mode to a second sleep mode of the mobile device;
means for cycling between a second DRX cycle off period and a second DRX cycle on period in the second sleep mode, the second DRX cycle on period having a different duration than the first DRX cycle on period;
means for cycling between a second DTX cycle off period and a second DTX cycle on period in the second sleep mode, the second DTX cycle off period having a different duration than the first DTX cycle off-on period;
means for monitoring transmission from a base station only during the DRX cycle on periods; and
means for turning off radio frequency generation of the mobile device during the DTX cycle off periods.
10. The apparatus of claim 9 , in which at least one processor further includes:
means for configuring a length of at least one of the DRX cycle on periods, the DRX cycle off periods, the DTX cycle on periods and the DTX cycle off periods in response to respective channel quality index (CQI) attributes.
11. The method of claim 1 , in which the second DRX cycle off period is a different duration than the first DRX cycle off period.
12. The apparatus of claim 4 , in which the second DRX cycle off period is a different duration than the first DRX cycle off period.
13. The computer program product of claim 7 , in which the second DRX cycle off period is a different duration than the first DRX cycle off period.
14. The apparatus of claim 9 , in which the second DRX cycle off period is a different duration than the first DRX cycle off period.