Traffic flow splitting method and apparatus

User equipment (UE), comprising:

• a memory, configured to store a computer-executable instruction;
• and
• a processor, configured to execute the computer-executable instruction to perform the operation comprising:
• receiving a first multiflow aggregation instruction cent from an evolved NodeB (eNB) in a 3rd Generation Partnership Project (3GPP) network, wherein the first multiflow aggregation instruction is used to instruct the UE to establish a first multiflow aggregation channel between the UE and the eNB via a non-3GPP network, the first multiflow aggregation channel is used for transmitting a part of data in a downlink traffic flow for the UE, wherein the part of data is offloaded to the non-3GPP network for transmission, and other data in the downlink traffic flow is offloaded to a 3GPP channel that is in the 3GPP network and that is between the UE and the eNB for transmission, the first multiflow aggregation channel comprises a first subchannel between the UE and a multiflow aggregation gateway and a second subchannel between the multiflow aggregation gateway and the eNB;
• and
• establishing the first multiflow aggregation channel, comprising:
• obtaining, by the UE, an IP address of the multiflow aggregation gateway;
• and
• sending, by the UE, a first multiflow aggregation channel establishment request to the multiflow aggregation gateway according to the IP address of the multiflow aggregation gateway, wherein the first multiflow aggregation channel establishment request comprises a second multiflow aggregation instruction and a bearer identifier corresponding to the second subchannel, the second multiflow aggregation instruction is used to instruct the multiflow aggregation gateway to establish the first multiflow aggregation channel.