Reducing Power Consumption in Voice over Long Term Evolution Terminals using Semi Persistent Scheduling in Connected Discontinuous Reception Mode

A non-transitory memory element storing programming instructions executable by a processing element to cause a wireless communication device to:

• adjust a semi persistent scheduling (SPS) transmit periodicity with respect to an SPS activation command and SPS interval;
• establish wireless communications via a wireless link, using connected-mode discontinuous reception (C-DRX) and SPS;
• transmit data during a first C-DRX On-Duration period, beginning data transmission after a first time delay relative to a beginning of the first C-DRX On-Duration period;
• and
• transmit data during one or more respective C-DRX On-Duration periods subsequent to the first C-DRX On-Duration period, beginning each data transmission after a respective time delay relative to a beginning of the respective C-DRX On-Duration period, wherein the respective time delay is determined according to the adjusted SPS transmit periodicity and is different from the first time delay;
• wherein the first C-DRX On-Duration period and the one or more respective C-DRX On-Duration periods correspond to the SPS activation command.

A wireless communication device comprising:

• radio circuitry configured to facilitate communications of the wireless communication device via a wireless link;
• and
• a processing element coupled to the radio circuitry and configured to interoperate with the radio circuitry to cause the wireless communication device to:
• adjust a semi persistent scheduling (SPS) transmit periodicity with respect to an SPS activation command and an SPS interval for wireless communications of the wireless communication device conducted over the wireless link according to connected-mode discontinuous reception (C-DRX) and SPS;
• schedule data transmission for a first C-DRX On-Duration period to begin after a first time delay relative to a beginning of the first C-DRX On-Duration period;
• and
• schedule data transmission for one or more respective C-DRX On-Duration periods subsequent to the first C-DRX On-Duration period, wherein each respective data transmission for a corresponding C-DRX On-Duration period of the one or more respective C-DRX On-Duration periods is scheduled to begin after a respective time delay relative to a beginning of the corresponding C-DRX On-Duration period, wherein the respective time delay is determined according to the adjusted SPS transmit periodicity and is different from the first time delay;
• wherein the first C-DRX On-Duration period and the one or more respective C-DRX On-Duration periods correspond to the SPS activation command