A method and apparatus for lifting capacity of the air interface

The present invention discloses a method and apparatus for lifting air interface capacity, said method comprising: in the beginning of a call and after establishing a base station side traffic channel, if the base station does not capture the traffic channel frame prefix sent by the terminal, the base station transmits a continuous transmission mode eighth rate frame to the air interface, to ensure that the terminal can receive forward frame base station; prefix after capturing terminal station, the base station only eighth rate frame Save made; terminal from the base station before the demodulation when the traffic frame, if the received consecutive good frames, the terminal call status is maintained without releasing the call, until the call ends. The present invention can greatly reduce the amount of the air interface transmitting eighth rate frames, reduces the interference between the forward channel, increases the capacity of the air interface, while also helping to reduce the increase call success rate and call drop.