A communication method for a wireless terminal, comprising: reporting, by a wireless terminal, a port type of a port corresponding to the wireless terminal to a host device, wherein the port type is based on a network layer data transfer protocol, so that the host device drives the port by using a port driver corresponding to the port type; establishing, by the wireless terminal, a communication link that is based on the network layer data transfer protocol between the wireless terminal and the host device through interaction with the host device via the port; and transmitting, by the wireless terminal, a service packet comprising a type of the service packet via the communication link that is based on the network layer data transfer protocol, wherein the transmitting, by the wireless terminal, a service packet comprising a type of the service packet via the communication link that is based on the network layer data transfer protocol comprises: transmitting, by the wireless terminal, a first service packet comprising a type of the first service packet via the communication link that is based on the network layer data transfer protocol, and transmitting, by the wireless terminal, a second service packet comprising a type of the second service packet via the communication link that is based on the network layer data transfer protocol, wherein the first service packet and the second service packet correspond to different services; and wherein the host device parses the first service packet according to the type of the first service packet and parses the second service packet according to the type of the second service packet. reporting, by a wireless terminal, a port type of a port corresponding to the wireless terminal to a host device, wherein the port type is based on a network layer data transfer protocol, so that the host device drives the port by using a port driver corresponding to the port type; establishing, by the wireless terminal, a communication link that is based on the network layer data transfer protocol between the wireless terminal and the host device through interaction with the host device via the port; and transmitting, by the wireless terminal, a service packet comprising a type of the service packet via the communication link that is based on the network layer data transfer protocol, wherein the transmitting, by the wireless terminal, a service packet comprising a type of the service packet via the communication link that is based on the network layer data transfer protocol comprises: transmitting, by the wireless terminal, a first service packet comprising a type of the first service packet via the communication link that is based on the network layer data transfer protocol, and transmitting, by the wireless terminal, a second service packet comprising a type of the second service packet via the communication link that is based on the network layer data transfer protocol, wherein the first service packet and the second service packet correspond to different services; and wherein the host device parses the first service packet according to the type of the first service packet and parses the second service packet according to the type of the second service packet.