Abstract: A method for transmitting data in real time in a multimedia data stream over a local network is provided. The local network comprises a sending end and one or more receiving ends. The method includes the steps of packaging a QoS (quality of service) control signal into a QoS packet according to a RTCP/TCP/IP protocol; packaging the multimedia data stream into a multimedia data packet according to a RTP/UDP/IP protocol; establishing a connection between the sending end and one of the one or more receiving ends; delivering the QoS packet and the multimedia data packet from the sending end to the one or more receiving end over the local network; and the one or more receiving end de-packaging the QoS packet into the QoS signal to control the transmission of the multimedia data stream.

Abstract: A method for communication connection via heterogeneous networks. A first electronic device transmits a first data packet to a first wireless bridge. The first wireless bridge attaches a first tunnel header to the first data packet to form a first wireless data packet, and transmits the first wireless data packet via the wireless network. A second wireless bridge receives the first wireless data packet via the wireless network, removing the first tunnel header therefrom to acquire a second data packet, stores an association relationship between the first electronic device and the first wireless bridge, and transmits the second data packet to the second electronic device. The second electronic device receives the second data packet and transmits data to the first electronic device.

Abstract: A method for transmitting data in real time in a multimedia data stream over a local network is provided. The local network comprises a sending end and one or more receiving ends. The method includes the steps of packaging a QoS (quality of service) control signal into a QoS packet according to a RTCP/TCP/IP protocol; packaging the multimedia data stream into a multimedia data packet according to a RTP/UDP/IP protocol; establishing a connection between the sending end and one of the one or more receiving ends; delivering the QoS packet and the multimedia data packet from the sending end to the one or more receiving end over the local network; and the one or more receiving end de-packaging the QoS packet into the QoS signal to control the transmission of the multimedia data stream.

Abstract: A method for communication connection via heterogeneous networks. A first electronic device transmits a first data packet to a first wireless bridge. The first wireless bridge attaches a first tunnel header to the first data packet to form a first wireless data packet, and transmits the first wireless data packet via the wireless network. A second wireless bridge receives the first wireless data packet via the wireless network, removing the first tunnel header therefrom to acquire a second data packet, stores an association relationship between the first electronic device and the first wireless bridge, and transmits the second data packet to the second electronic device. The second electronic device receives the second data packet and transmits data to the first electronic device.