Data processing method and apparatus, network device, storage medium and program product

A data processing method, applied to a second network element in a radio access network and comprising:

• receiving a first interface message transmitted by a first network element in the radio access network, wherein the first interface message comprises an identifier of a data flow of downlink user data;
• determining a target bearer to which the data flow is mapped according to the first interface message;
• transmitting a second interface message to the first network element, wherein the second interface message comprises an identifier of the target bearer;
• transmitting a third interface message to a third network element in the radio access network, wherein the third interface message is used for instructing the third network element and the user equipment to determine configuration information of the target bearer and for instructing the third network element to allocate a downlink address of the target bearer;
• receiving the downlink address transmitted by the third network element and transmitting the downlink address to the first network element, to enable the first network element to transmit the downlink user data to the third network element according to the downlink address.

A network device, comprising a memory, a transceiver and a processor, wherein:

• the memory is configured to store a computer program;
• the transceiver is configured to receive and transmit data under control of the processor;
• and
• the processor is configured to read the computer program in the memory to:
• control the transceiver to receive a downlink data packet, wherein the downlink data packet comprises downlink user data and an identifier of a data flow to which the downlink user data belongs;
• control the transceiver to transmit a first interface message to a second network element in a radio access network, wherein the first interface message comprises the identifier of the data flow, and the first interface message is used for determining a target bearer to which the data flow is mapped;
• control the transceiver to receive a second interface message transmitted by the second network element, wherein the second interface message comprises an identifier of the target bearer;
• determine configuration information of the target bearer according to the identifier of the target bearer comprised in the second interface message, wherein the configuration information of the target bearer comprises a mapping relationship between the target bearer and the data flow;
• control the transceiver to transmit the downlink user data to the user equipment based on the mapping relationship.