A METHOD AND DEVICE FOR VOICE TRANSMISSION IN RADIO SYSTEM

摘要

The present invention aims to provide a method and device for voice transmission in radio system. The method consists of: the transmission end sets the sequence number of playing order for the original coded voice packets, and makes channel coding of the coded voice packets to constitute voice session packets; the transmitting end and the receiving end set up voice session or session mixed of voice and data, and allocate channels for these sessions dynamically; the transmitting end sends the newly arrived voice session packets, delayed voice session packets, retransmitted voice session packets, data session packets and control command packets based on the predefined priority; the receiving end receives the voice session packets and checks, if it makes sure that some voice session packet is lost, it will send NACK packet that includes sequence number of the lost voice session packet to the transmitting end to indicate the transmitting end to retransmit the session packet; the receiving end is the terminal, witch puts the correctly received voice session packets into jitter buffer controller. The present invention can satisfy QoS of real time service such as voice, and besides, can improve frequency efficiency and reliability of real time voice service in radio system with multiple service transmission.