Data distribution method and device in wireless heterogeneous network and wireless network controller

Abstract

The invention provides a data distribution method and device in a wireless heterogeneous network and a wireless network controller. The method comprises receiving a service request sent by UE (user equipment), and acquiring data corresponding to the service request; distributing a wireless access technology link circuit for a TCP (Transmission Control Protocol) stream in at least two wireless access technology link circuits after determining that the data is a TCP stream; and transmitting the data on the distributed wireless access technology link circuit. The embodiment of the invention can ensure the sequential transmission of data of the same TCP connection.

Description

technical field [0001] The invention relates to wireless communication technology, in particular to a data distribution method, device and wireless network controller in a wireless heterogeneous network. Background technique [0002] With the evolution of wireless access technologies, in a single radio access network (Single Radio Access Network, SRAN) network deployment, wireless networks of multiple standards must operate simultaneously for a long time. How to efficiently use various wireless network resources will be an urgent problem to be solved. [0003] In the prior art, in a heterogeneous network where multi-standard wireless networks coexist, service transmission traffic is allocated according to the theoretical bandwidth ratio of the standard, and service data is allocated to networks of different standards for transmission to users. For example, the multi-mode adopted by the heterogeneous network includes the first wireless access technology and the second wirele...

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Problems solved by technology

[0004] However, according to the above method, in a heterogeneous network where multi-standard wireless networks coexist, the data of the same service may be allocated to networks of different standards for transmission. Due to the differences in network delays of different standards, the data of the same service will appear out of order. sequence

Since the data of the same Transmission Control Protocol (TCP) connection is required to be transmitted in order, if the data of the same TCP connection is out of order, it will cause data reception errors

Therefore, performing data shunting in the above manner may result in errors in the received data of the TCP connection

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