Quality of service, battery lifetime, and latency in wireless communication devices

摘要

Embodiments for processing media over Internet Protocol (IP) packets in a wireless device are provided. Embodiments enable downlink and uplink media over IP flows within the wireless device that reduce the load on the application processor (AP) of the wireless device. In an embodiment, media over IP flows bypass the AP entirely allowing the AP to enter a power saving mode during media over IP sessions. This results in increased battery lifetime and reduced power consumption of the wireless device. In addition, the media over IP session quality is improved by the reduced latency resulting from bypassing the AP.

主权项

1. A wireless communications device, comprising:
an application processor (AP) configured to execute a protocol stack, including at least one of: a session setup protocol, a media carrier protocol, a transport protocol, and an Internet Protocol (IP) of an IP stack; and a processor, located outside of the AP, configured to implement an audio sniffer module, wherein the audio sniffer module is configured to receive a first IP packet and to determine whether or not the first IP packet contains a first audio frame, the audio sniffer module further configured, if the first IP packet does not contain the first audio frame, to forward the first IP packet to the AP, and, if the first IP packet contains the first audio frame, to extract the first audio frame from the first IP packet and to forward the first audio frame to an audio processor, and wherein the audio sniffer module is further configured to receive a second audio frame from the audio processor; encapsulate the second audio frame in a first transport protocol packet and insert a predefined transport protocol port number; encapsulate the first transport protocol packet in a second IP packet and insert a predetermined destination IP address; and forward the second IP packet to a transmitter module of the wireless communications device.