Data transmission method and device

1. A method for transmitting data, comprising:

determining a plurality of carriers or carrier groups for transmitting duplicated data according to a plurality of logical channels for carrying the duplicated data, wherein at least two logical channels in the plurality of logical channels correspond to different carriers or carrier groups for transmitting the duplicated data;

transmitting the duplicated data carried in the plurality of logical channels respectively on the plurality of carriers or carrier groups;

wherein in the plurality of logical channels, different logical channels correspond to different media access control (MAC) entities;

wherein at least two logical channels in the plurality of logical channels corresponding to different carriers or carrier groups for transmitting the duplicated data comprises: in the MAC entities corresponding to the plurality of logical channels, different MAC entities correspond to different carriers or carrier groups;

wherein determining the plurality of carriers or carrier groups for transmitting the duplicated data according to the plurality of logical channels for carrying the duplicated data comprises:

determining the plurality of carriers or carrier groups according to respective indication information of each of the plurality of logical channels;

wherein the indication information comprises first indication information corresponding to a first logical channel of the plurality of logical channels, and the first indication information indicates carrier identities (IDs) of a group of carriers; and

wherein transmitting the duplicated data carried in the plurality of logical channels respectively on the plurality of carriers or carrier groups comprises:

transmitting the duplicated data carried in the first logical channel on part of carriers in the group of carriers.

2. The method according to claim 1 , wherein determining a plurality of carriers or carrier groups for transmitting duplicated data according to a plurality of logical channels for carrying the duplicated data comprises:

determining a plurality of MAC entities corresponding to the plurality of logical channels according to the plurality of logical channels carrying the duplicated data and a correspondence relationship between the logical channels and the MAC entities, and

determining a plurality of carriers or carrier groups corresponding to the plurality of MAC entities;

wherein the correspondence relationship between the logical channels and the MAC entities is configured by a radio resource control (RRC) signaling.

3. The method according to claim 1 , wherein the respective indication information of each logical channel is comprised in an indication field of respective logical channel configuration information of the each logical channel.

4. The method according to claim 3 , wherein the respective logical channel configuration information of the each logical channel is a respective radio resource control (RRC) information element of the each logical channel, and the RRC information element of the each logical channel is used for configuring channel parameters of the each logical channel.

5. The method according to claim 1 , wherein determining the plurality of carriers or carrier groups for transmitting the duplicated data according to the plurality of logical channels for carrying the duplicated data comprises:

determining a plurality of MAC entities according to the plurality of logical channels and a first correspondence relationship, wherein the first correspondence relationship is a correspondence relationship between logical channels and MAC entities, and the plurality of logical channels and the plurality of MAC entities correspond one to one; and

determining the plurality of carriers or carrier groups according to the plurality of MAC entities and a second correspondence relationship, wherein the second correspondence relationship is a correspondence relationship between MAC entities and carriers or carrier groups, and the plurality of MAC entities and the plurality of carriers or carrier groups correspond one to one.

6. The method according to claim 1 , wherein the duplicated data is duplicated data obtained by duplicating a same one packet data convergence protocol (PDCP) protocol data unit (PDU) by a PDCP split carrier.

7. The method according to claim 1 , wherein carrying the duplicated data on the plurality of logical channels is preconfigured by a higher layer signaling.

8. The method according to claim 7 , wherein the high layer signaling is a radio resource control (RRC) signaling.

9. A device for transmitting data, comprising a processor, a memory and a transceiver, the memory is configured to store a program executable by the processor, the transceiver is configured to communicate with other devices under control of the processor, and the processor is configured to execute the program to:

determine a plurality of carriers or carrier groups for transmitting duplicated data according to a plurality of logical channels for carrying the duplicated data, wherein at least two logical channels in the plurality of logical channels correspond to different carriers or carrier groups for transmitting the duplicated data; and

transmit, through the transceiver, the duplicated data carried in the plurality of logical channels respectively on the plurality of carriers or carrier groups;

wherein in the plurality of logical channels, different logical channels correspond to different media access control (MAC) entities;

wherein at least two logical channels in the plurality of logical channels corresponding to different carriers or carrier groups for transmitting the duplicated data comprises: in the MAC entities corresponding to the plurality of logical channels, different MAC entities correspond to different carriers or carrier groups;

wherein determine the plurality of carriers or carrier groups for transmitting the duplicated data according to the plurality of logical channels for carrying the duplicated data comprises:

determine the plurality of carriers or carrier groups according to respective indication information of each of the plurality of logical channels;

wherein the indication information comprises first indication information corresponding to a first logical channel of the plurality of logical channels, and the first indication information indicates carrier identities (IDs) of a group of carriers; and

wherein transmit, through the transceiver, the duplicated data carried in the plurality of logical channels respectively on the plurality of carriers or carrier groups comprises:

transmit, through the transceiver, the duplicated data carried in the first logical channel on part of carriers in the group of carriers.

10. The device according to claim 9 , wherein the processor is configured to execute the program to:

determine a plurality of MAC entities corresponding to the plurality of logical channels according to the plurality of logical channels carrying the duplicated data and a correspondence relationship between the logical channels and the MAC entities, and

determine a plurality of carriers or carrier groups corresponding to the plurality of MAC entities;

wherein the correspondence relationship between the logical channels and the MAC entities is configured by a radio resource control (RRC) signaling.

11. The device according to claim 9 , the respective indication information of each logical channel is comprised in an indication field of respective logical channel configuration information of the each logical channel.

12. The device according to claim 11 , wherein the respective logical channel configuration information of the each logical channel is a respective radio resource control (RRC) information element of the each logical channel, and the RRC information element of the each logical channel is used for configuring channel parameters of the each logical channel.

13. The device according to claim 9 , wherein the processor is configured to execute the program to:

determine a plurality of MAC entities according to the plurality of logical channels and a first correspondence relationship, wherein the first correspondence relationship is a correspondence relationship between logical channels and MAC entities, and the plurality of logical channels and the plurality of MAC entities correspond one to one;

determine the plurality of carriers or carrier groups according to the plurality of MAC entities and a second correspondence relationship, wherein the second correspondence relationship is a correspondence relationship between MAC entities and carriers or carrier groups, and the plurality of MAC entities and the plurality of carriers or carrier groups correspond one to one.

14. The device according to claim 9 , wherein the duplicated data is duplicated data obtained by duplicating a same one packet data convergence protocol (PDCP) protocol data unit (PDU) by a PDCP split carrier.

15. The device according to claim 9 , wherein carrying the duplicated data on the plurality of logical channels is preconfigured by a higher layer signaling.

16. A non-transitory computer-readable storage, storing programs executable by a computer, the programs, when being executed, cause the computer to:

determine a plurality of carriers or carrier groups for transmitting duplicated data according to a plurality of logical channels for carrying the duplicated data, wherein at least two logical channels in the plurality of logical channels correspond to different carriers or carrier groups for transmitting the duplicated data; and

transmit the duplicated data carried in the plurality of logical channels respectively on the plurality of carriers or carrier groups;

wherein in the plurality of logical channels, different logical channels correspond to different media access control (MAC) entities;

wherein at least two logical channels in the plurality of logical channels corresponding to different carriers or carrier groups for transmitting the duplicated data comprises: in the MAC entities corresponding to the plurality of logical channels, different MAC entities correspond to different carriers or carrier groups;

wherein determine the plurality of carriers or carrier groups for transmitting the duplicated data according to the plurality of logical channels for carrying the duplicated data comprises:

determine the plurality of carriers or carrier groups according to respective indication information of each of the plurality of logical channels;

wherein the indication information comprises first indication information corresponding to a first logical channel of the plurality of logical channels, and the first indication information indicates carrier identities (IDs) of a group of carriers; and

wherein transmit the duplicated data carried in the plurality of logical channels respectively on the plurality of carriers or carrier groups comprises:

transmit the duplicated data carried in the first logical channel on part of carriers in the group of carriers.