Data transmission method and device and communication system

Abstract

The invention discloses a data transmission method, a data transmission device and a communication system, relates to the field of communication and solves the problem that data transmission between user equipment and a packet data network by a household access system frame provided by the prior art occupies too many network resources. The technical scheme provided by the invention is that a nodewith a service shunting function establishes correspondence between the service flow of the user equipment and a wireless access bearer and directly sends the received service flow of the packet datanetwork to the user equipment by using the wireless access bearer according to the correspondence or directly forwards the service flow, which is received by the wireless access bearer, of the user equipment to the packet data network. The method, the device and the system can be applied to a household access system and common macro networks such 3G or long term evolution (LTE).

Description

technical field [0001] The present invention relates to the communication field, in particular to a data transmission method, device and communication system. Background technique [0002] In the home access system architecture, a user equipment (User Equipment, UE) can access a mobile network through a home wireless access point, and communicate with a packet data network through the mobile network. Such as figure 1 As shown, according to the spectrum used, the home wireless access point can be: 3G home base station (Home NodeB, HNB), home evolved base station (Home evolved NodeB, HeNB) or home non-3GPP wireless access point (Home non-3GPP Wireless Access Point, Home non-3GPP WAP); HNB, HeNB and Home non-3GPP WAP are respectively connected to the 3G home base station gateway, home evolution base station gateway and home non-3GPP wireless access point gateway through the general IP access network, through 3G The femto base station gateway, the femto eNB gateway and the hom...

AI Technical Summary

Problems solved by technology

[0004] use as figure 1 When the home access system architecture shown in the figure transmits data between the UE and the packet data network, the data needs to be transmitted through multiple network elements. For example, after the UE accesses the network through the HNB, the HNB transmits the data sent by the UE through The general IP access network is transmitted to the 3G femtocell gateway, and the 3G femtocell gateway transmits the data to the packet data network through the SGSN and GGSN. With this data transmission method, the data transmission path is long, and the network elements through which the data pass It is necessary to allocate transmission resources for it, so that data transmission occupies more network resources

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