Reducing Power Consumption in Voice over LTE 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. A wireless user equipment (UE) device, the UE comprising:
a radio, comprising one or more antennas for performing wireless communication; and a processing element, coupled to the radio, and configured to adjust a semi persistent scheduling (SPS) transmit periodicity with respect to an SPS activation command and SPS interval; wherein the radio and the processing element are configured to interoperate to:
establish a connection with a network via a wireless link;communicate with the network via the wireless link using connected-mode discontinuous reception (C-DRX) and SPS; andtransmit data during C-DRX On-Duration periods, beginning each data transmission at a respective point in time determined according to the adjusted SPS transmit periodicity.