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

摘要

A connection with a network that includes a base station (BS) may be established by a user device (UE) via a wireless connection, for conducting communications using semi persistent scheduling (SPS) in a connected discontinuous reception (C-DRX) mode. The SPS transmit periodicity may be adjusted with respect to the SPS activation command and the SPS interval UL (for uplink). Data may then be transmitted during the C-DRX On-Duration periods according to the determined SPS transmit periodicity. In some embodiments, the SPS transmit periodicity is adjusted such that following a first C-DRX On-Duration period when an SPS activation command is received, SPS data transmission occurs a specified number of subframes earlier during each subsequent C-DRX On-Duration period than in the first C-DRX On-Duration period. The SPS data transmission in each subsequent C-DRX On-Duration period may take place as soon as the UE device wakes up during the On-Duration period.

主权项

1. An apparatus comprising:
a processing element configured to cause a 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 via 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; andschedule 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.