Channel configuring method

The invention provides a channel collocation method, which includes steps: first step, user device sends first message to wireless network controller, the first message contains the indicating information of voice call type, and the information of non-accessing layer; second step, responses the first message, the wireless network controller sends second message to kernel network, the second message contains the information of non-accessing layer; third step, the wireless network controller denotes the user device to send the third message according to voice call type, the third message contains the collocation information of channels; and fourth step, responses the third step, the user device collocates the special-used transmission channel and special-used physical channel according to the collocation information of channels. Using said technical scheme, it realizes following technical purposes: it reduces the time to build the UE calling, and reduce the complexity of system, and avoids the wasting of wireless resource.