Voice/data transmissions in common packet channel of 3GPP

In this paper, we propose a flexible channel assignment scheme with preemption as an access scheme for integrated voice/data transmissions over common packer channel (CPCH) in 3GPP. We analyze the proposed scheme and compare the system performance with the three schemes such as the basic scheme, the channel monitoring scheme, and the channel assignment scheme in view of the dropping probability of voice packets and the average delay of data packet.