下面说法，不正确的是（ ） Which of the following statements is incorrect? ( ) A.在Iub接口中，ALCAP协议的作用是用于和无线网络层控制协议NBAP一起控制传输网络用户面的AAL2用户承载的建立、释放和维护等。 In the Iub interface, the function of the ALCAP protocol is to control the establishment, release and maintenance born by AAL2 users of the transmission network user plane together with the radio network layer control protocol NBAP B.在Iu_PS接口中，传输网络用户面使用的协议包括：AAL5、IP、UDP、TCP、GTP－U。 In the Iu_PS interface, the protocols used in the user plane of transmission network include AAL5, IP, UDP, TCP and GTP-U C.在Iu_CS接口中，传输网络控制面使用的协议包括：AAL5、SSCOP、SSCF-NNI、MTP3B、SCCP。 In the Iu_CS interface, the protocols used in the control plane of the transmission network include AAL5, SSCOP, SSCF-NNI, MTP3B and SCCP D.在Iur接口中，无线网络控制面使用的协议是RNSAP。 In the Iur interface, the protocol used in the control plane of the radio network is RNSAP
