The combination of advantage in the two technology can solve the problem of transmission qos and bandwidth limitaion of wireless relay network . wu wei ( computer application technology ) directed by prof 这种低比特率语音编码和aal2在支持实时、可变速率、短分组业务应用中的优势相结合的方案,可解决通信网中无线中继存在的传输质量和带宽受限的问题。