Data connection establishing/releasing method, data transmission method and wireless data card

Abstract

The invention discloses a data connection establishing / releasing method, a data transmission method and a wireless data card. The data connection establishing method comprises that: when receiving a request initiated by TE for establishing the data connection between the wireless data card and GGSN, the wireless data card judges whether the data connection to be established by the request is the first data connection between the TE and the wireless data card; if the data connection to be established by the request is the first data connection between the TE and the wireless data card, the wireless data card establishes a wireless access bearer of a PDP context corresponding to the first data connection between the wireless data card and GGSN and establishes virtual Ethernet connection between the wireless data card and the TE; if the data connection to be established by the request is not the first data connection between the TE and the wireless data card, the wireless data card establishes a wireless access bearer of the PDP context corresponding to the Nth data connection between the wireless data card and GGSN. The data connection establishing / releasing method, the data transmission method and the wireless data card realize the data connection support established by the TE through the wireless data card and activate a plurality of PDP contexts simultaneously. In addition, because the advantages of an RmNet data transmission mode are maintained, the data transmission rate of an Rm port can be guaranteed.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a data connection establishment method, a release method, a data transmission method and a wireless data card. Background technique [0002] With the advent of the third generation mobile communication (The 3rd Generation, 3G) era, wireless data cards have great advantages over traditional fixed network access methods due to their high speed and portability. Great need. [0003] The wireless data card adopts the application mode of TE+MT, wherein the terminal equipment (Terminal Equipment, TE) is generally a PC, and the mobile terminal (Mobile Terminal, MT) is generally a wireless data card or a mobile phone. [0004] The 3rd Generation Partnership Project (3GPP) defines two bearer methods for the application data of the wireless data card, namely IP bearer mode and Point-to-Point Protocol (PPP) bearer mode. Since the IP bearer mode is more efficient than the PPP bearer mod...

AI Technical Summary

Problems solved by technology

[0008] Mobile terminals such as wireless data cards and mobile phones and the network side usually support the radio access bearer (Radio Access Bear, RAB) of establishing multiple PDP contexts at the same time, but due to the limitation of the number of connections between the wireless data card and TE or the Technical problem, the current wireless data card can only support one Packet Data Protocol (PDP, Packet Data Protocol) context in practical application at the same time, because in the case of supporting multiple PDP contexts, the wireless data card can be used for multiple different simultaneous This type of application provides quality of service (Quality of Service, QoS) guarantees, enables different services using different access point names (Access Point Name, APN) to be carried out simultaneously, and supports multiple PDP context activation at the same time. It has been launched, but currently there is no plan to simultaneously activate multiple PDP contexts through the wireless data card to establish a data connection between the TE and the network side GGSN in the RmNet dial-up mode

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