DEVICE-INITIATED CODEC RATE CHANGE DURING A VOICE CALL

摘要

A method for initiating a codec rate change during a VoIP call by a wireless communication device is disclosed. The method can include the wireless communication device establishing a first codec rate for use in the VoIP call during a call establishment phase; using the first codec rate to encode voice data for transmission during a first portion of the VoIP call; determining a channel quality while using the first codec rate; determining that the channel quality satisfies a threshold for requesting a codec rate change; requesting a codec rate change from the first codec rate to a second codec rate in response to the channel quality satisfying the threshold; and using the second codec rate to encode voice data for transmission during a second portion of the VoIP call.

主权项

1. A method for initiating a codec rate change during a voice over Long Term Evolution (VoLTE) call by a wireless communication device including a physical layer and a real-time transport protocol (RTP) layer, the method comprising the wireless communication device:
establishing a first codec rate for use in the VoLTE call during a call establishment phase; using the first codec rate to encode voice data for transmission during a first portion of the VoLTE call; determining a channel quality at the physical layer while using the first codec rate; determining that the channel quality satisfies a threshold for requesting a codec rate change; providing an indication that the channel quality satisfies the threshold to the RTP layer; requesting, at the RTP layer, a codec rate change from the first codec rate to a second codec rate in response to the indication that the channel quality satisfies the threshold; and using the second codec rate to encode voice data for transmission during a second portion of the VoLTE call.