The third generation mobile system(3G) makes mobile conversational video transmission in wireless environment possible and H.264/AVC is optionally supported by the latest 3GPP/3GPP2 standards.Error resilience protection for 3G video stream is necessary due to high packet loss rate in wireless environment.Moreover

3G mobile terminals support only part of error resilience tools of H.264/AVC because of the hardware restrictions.This paper presents various error resilience tools and their usability in 3G environment

at the same time

some simple error resilience schemes for packet-switched 3G conversational services are proposed.Performances of these strategies are tested using off-line common test conditions.Experimental show that these strategies can obtain reasonably satisfactory error correction ability.Experiments data also show that

encoder with low complexity FMO method and appropriate intra block refreshing can get better error correction ability

because this method can make full use of spatial correlation between frames and reduce the requirement of bit rate.