Method and apparatus for transmitting data
View Patent ↗A method for transmitting data includes a first primary network device receives measurement result information of a secondary network device sent by a terminal device during access to the first primary network device, the measurement result information being used for indicating the quality of a link between the secondary network device and the terminal device; the first primary network device determines, according to the quality of the link between the secondary network device and the terminal device, to establish a secondary connection between the secondary network device and the terminal device; the first primary network device establishes the secondary connection. Thus the transmission load of the first primary network device can be reduced.
1. A method for data transmission, comprising:
receiving, by a first primary network device, measurement result information of a secondary network device, transmitted by a terminal device in a process of accessing the first primary network device, the measurement result information being configured to indicate link quality between the secondary network device and the terminal device;
determining, by the first primary network device, to establish a secondary connection between the secondary network device and the terminal device according to the link quality between the secondary network device and the terminal device;
transmitting, by the first primary network device, a secondary connection addition request message to the secondary network device, the secondary connection addition request message being configured to request the secondary network device to be added as a network device for data transmission;
receiving, by the first primary network device, an acknowledgement message of the secondary connection addition request message from the secondary network device, the acknowledgement message of the secondary connection addition request message carrying the configuration information of the secondary connection and the configuration information of the secondary connection being configured to establish the secondary connection between the secondary network device and the terminal device;
acquiring, by the first primary network device, the configuration information of the secondary connection; and
transmitting, by the first primary network device, the configuration information of the secondary connection to the terminal device.
2. The method of claim 1 , wherein receiving, by the first primary network device, the measurement result information of the secondary network device, transmitted by the terminal device in the process of accessing the first primary network device comprises:
receiving, by the first primary network device, the measurement result information carried in a Radio Resource Control (RRC) connection establishment request message or an RRC connection establishment complete message.
3. The method of claim 1 , wherein receiving, by the first primary network device, the measurement result information of the secondary network device, transmitted by the terminal device in the process of accessing the primary network device comprises:
receiving, by the first primary network device, the measurement result information carried in a handover complete message from the terminal device, the handover complete message being further configured to indicate that a network device serving the terminal device has been switched from a second primary network device to the first primary network device.
4. The method of claim 1 , wherein receiving, by the first primary network device, the measurement result information of the secondary network device, transmitted by the terminal device in the process of accessing the primary network device comprises:
receiving, by the first primary network device, the measurement result information carried in a handover request message from the second primary network device, the handover request message being further configured to request a network device serving the terminal device to be switched from the second primary network device to the first primary network device.
5. The method of claim 4 , wherein establishing, by the first primary network device, the secondary connection comprises:
after receiving, by the first primary network device, the measurement result information carried in the handover request message from the second primary network device, transmitting, by the first primary network device, an acknowledgement message of the handover request message to the second primary network device, the acknowledgement message of the handover request message carrying configuration information of the secondary connection to enable the second primary network device to transmit the configuration information of the secondary connection to the terminal device, and the configuration information of the secondary connection being configured to establish the secondary connection between the secondary network device and the terminal device.
6. The method of claim 1 , before receiving, by the first primary network device, the measurement result information of the secondary network device, transmitted by the terminal device in the process of accessing the primary network device, further comprising:
transmitting, by the first primary network device, first indication information to the terminal device, the first indication information being configured to instruct the terminal device to transmit the measurement result information to the first primary network device,
wherein receiving, by the first primary network device, the measurement result information of the secondary network device, transmitted by the terminal device in the process of accessing the primary network device comprises:
receiving, by the first primary network device, the measurement result information transmitted by the terminal device according to the first indication information.
7. The method of claim 1 , wherein determining, by the first primary network device, to establish the secondary connection between the secondary network device and the terminal device according to the measurement result information comprises:
determining, by the first primary network device, to establish the secondary connection between the secondary network device and the terminal device according to a load condition of the first primary network device and the measurement result information.
8. The method of claim 1 , further comprising:
transmitting, by the first primary network device, configuration information of a primary connection to the terminal device, the configuration information of the primary connection being configured for the terminal device to establish the primary connection with the first primary network device, and the primary connection being configured for data transmission.
9. The method of claim 1 , wherein the first primary network device is a network device in a Long Term Evolution (LTE) network and the secondary network device is a network device in a 5th-Generation (5G) network.
10. The method of claim 1 , wherein the secondary connection is configured to transmit at least one of first control-plane data or user-plane data.