A distribution method, system and access network element based on multi-network joint transmission

Abstract

The invention discloses a distribution method, system and network element of an access network based on joint transmission of multiple networks. The element sends an offload request message; after receiving a successful response from the WLAN access network element, the 3GPP access network element sends an offload command to the user equipment (UE), instructing the UE to access the target WLAN corresponding to the WLAN access network element. Access network: After confirming that the UE successfully accesses the target WLAN access network, the 3GPP access network element performs data offload transmission through the offload connection with the WLAN access network element. Through the present invention, the distribution control of multi-network joint transmission at the network side is realized.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a distribution method, system and network element of an access network based on multi-network joint transmission. Background technique [0002] With the continuous evolution of wireless communication technology and protocol standards, the mobile packet service has undergone tremendous development, and the data throughput capability of a single terminal has been continuously improved. Taking the Long Term Evolution (LTE, Long Term Evolution) system as an example, a maximum downlink data transmission rate of 100 Mbps (megabit / second) can be supported within a bandwidth of 20 M (Mega). In an enhanced LTE (LTE-A, LTE Advanced) system, the data transmission rate will be further increased, and may even reach 1 Gbps (Gigabit / s). [0003] The expansion of terminal data traffic has made the existing network resources gradually unable to meet the demand, especially when the new...

AI Technical Summary

Problems solved by technology

[0006] 1. The current Interworking architecture relies on the operator to have an independent 3GPP network and an independent and complete WLAN network, which requires the operator to operate and maintain multiple networks at the same time, and the operating cost (CAPEX, Capital Expenditure) is relatively large;

[0007] 2. The user equipment (UE, User Equipment) cannot know whether the network side (such as the LTE network and the WLAN network) supports Interworking, so the UE may choose to connect to a target network that cannot perform Interworking with the current network;

[0008] 3. When the UE moves between the 3GPP network and the WLAN network, the switching of the data flow is relatively slow;

[0009] 4. The current Interworking is triggered by the UE. The network side does not have the right to actively select the target network, and loses control over the UE's access to the network. This makes the network side unable to guide users to access their desired or optimal target network.

Images