Method, equipment and system for communication between external equipment and internal equipment of home network

Abstract

The embodiment of the invention discloses a method, equipment and a system for the communication between external equipment and internal equipment of a home network, relates to the field of communication, can solve the problem of data transmission for the communication between the external equipment and the internal equipment of the home network and reduces network flow. The method provided by the embodiment of the invention comprises that: the external equipment establishes a connection channel with a home gateway; the external equipment acquires information on the internal equipment of the home network from the home gateway through the established connection channel; and the external equipment controls the internal equipment of the home network through the established connection channelaccording to the acquired information on the internal equipment of the home network. The embodiment of the invention can realize the subscription by the external equipment of the state information onthe internal equipment of the home network.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method, device and system for communicating between an external device and an internal device of a home network. Background technique [0002] In the prior art, the home network only exists in one home local area network, and cannot directly communicate with external networks. Inside the home network, through the universal plug and play (UPnP, Universal Plug and Play) protocol, each internal device in the home network can be seamlessly connected to each other and interoperate. [0003] In the prior art, the method for communicating between an external network device (external device) and a home network device (internal device) is that the external device sends a SIP message to the home network gateway (home gateway), and in the message body of the SIP message Carry a device message protocol DMP, which is an interaction protocol for specific devices in the home network. After ...

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that there are at least such problems in the prior art: on the one hand, SIP messages usually pass through many proxy servers during transmission, which increases the message delay, and the device interaction protocol carried The size of the data is limited, and if it is too large, the transmission will fail; on the other hand, the extension of the SIP protocol by this method destroys the simplicity of the SIP protocol and increases the network traffic, and the DMP messages used are rarely used.

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