DATA TRANSMISSION METHOD AND RELATED PRODUCT

• US 20200137826A1
• Filed: 12/24/2019
• Published: 04/30/2020
• Est. Priority Date: 08/11/2017
• Status: Active Grant

• Current Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Original Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Inventors: LIU, Jianhua
• Granted Patent: US 11,116,038 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 1/0007 by modifying the frame length
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04L 69/322 Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
• CPC Class Codes: H04W 80/02 Data link layer protocols

Abstract

Embodiments of the present application disclose a data transmission method and a related product, including: a receiving end receives a data packet from a transmitting end, the data packet including a medium access control layer (MAC) protocol data unit (PDU), the MAC PDU including multiple MAC subPDUs, and at least one MAC subPDU of the multiple MAC subPDUs including a MAC sub-header; where the MAC sub-header includes a first information field, and the first information field is configured to indicate whether the MAC sub-header includes a length indication L field. The embodiments of the present application, by introducing the first information field in an existing MAC sub-header format, where the first information field can be used to dynamically indicate whether a current MAC subPDU includes an L field, are beneficial to the improvement in flexibility and efficiency of data processing at the receiving end.

Claims

1. A data transmission method, comprising:

receiving, by a receiving end, a data packet from a transmitting end, wherein the data packet comprises a medium access control layer (MAC) protocol data unit (PDU), the MAC PDU comprises multiple MAC subPDUs, and at least one MAC subPDU of the multiple MAC subPDUs comprises a MAC sub-header;

wherein the MAC sub-header comprises a first information field, and the first information field is configured to indicate whether the MAC sub-header comprises a length indication L field.

2. The method according to claim 1, wherein the first information field is configured to indicate that the MAC sub-header comprises the L field, and a format of the MAC sub-header is the first information field/an extended bit R field/a logical channel identification (LCID) field/a bit length format indication F field/the L field.

3. The method according to claim 1, wherein the first information field is configured to indicate that the MAC sub-header does not comprise the L field, and a format of the MAC sub-header is the first information field/a second information field/a logical channel identification (LCID) field, and the second information field is configured to indicate whether the receiving end reads the LCID field.

4. The method according to claim 1, wherein the first information field is configured to indicate that the MAC sub-header does not comprise the L field, and a format of the MAC sub-header is the first information field/a second information field/a logical channel identification (LCID) field, or

the format of the MAC sub-header is the first information field/the second information field/a third information field;

wherein the second information field is configured to indicate the LCID field or the third information field, the third information field is configured to indicate multiple consecutive MAC subPDUs after the MAC sub-header, and each MAC subPDU of the multiple consecutive MAC subPDUs, except the MAC subPDU to which the MAC sub-header belongs, does not comprise a sub-header.

5. The method according to claim 4, wherein the first information field is located in a first bit of the MAC sub-header, the second information field is located in a second bit of the MAC sub-header, and the third information field is located in a third bit to an eighth bit of the MAC sub-header.

6. The method according to claim 1, wherein a bit length of the L field of the MAC subPDU, which comprises the L field, of the multiple MAC subPDUs is 7 or 15 or 8 or 16.

19. A non-volatile computer readable storage medium, which stores a computer program for electronic data exchange, wherein the computer program enables a computer to perform the method according to claim 1.

7. A terminal device, comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory, and the processor, when executing the one or more programs, is configured to:

receive a data packet from a transmitting end through the communication interface, wherein the data packet comprises a medium access control layer (MAC) protocol data unit (PDU), the MAC PDU comprises multiple MAC subPDUs, and at least one MAC subPDU of the multiple MAC subPDUs comprises a MAC sub-header;

wherein the MAC sub-header comprises a first information field, and the first information field is configured to indicate whether the MAC sub-header comprises a length indication L field.

8. The terminal device according to claim 7, wherein the first information field is configured to indicate that the MAC sub-header comprises the L field, and a format of the MAC sub-header is the first information field/an extended bit R field/a logical channel identification (LCID) field/a bit length format indication F field/the L field.

9. The terminal device according to claim 7, wherein the first information field is configured to indicate that the MAC sub-header does not comprise the L field, and a format of the MAC sub-header is the first information field/a second information field/a logical channel identification (LCID) field, and the second information field is configured to indicate whether the receiving end reads the LCID field.

10. The terminal device according to claim 7, wherein the first information field is configured to indicate that the MAC sub-header does not comprise the L field, and a format of the MAC sub-header is the first information field/a second information field/a logical channel identification (LCID) field, or

the format of the MAC sub-header is the first information field/the second information field/a third information field;

wherein the second information field is configured to indicate the LCID field or the third information field, the third information field is configured to indicate multiple consecutive MAC subPDUs after the MAC sub-header, and each MAC subPDU of the multiple consecutive MAC subPDUs, except the MAC subPDU to which the MAC sub-header belongs, does not comprise a sub-header.

11. The terminal device according to claim 10, wherein the first information field is located in a first bit of the MAC sub-header, the second information field is located in a second bit of the MAC sub-header, and the third information field is located in a third bit to an eighth bit of the MAC sub-header.

12. The terminal device according to claim 7, wherein a bit length of the L field of the MAC subPDU, which comprises the L field, of the multiple MAC subPDUs is 7 or 15 or 8 or 16.

13. A network device, comprising a processor, a memory, a transceiver, and one or more programs, wherein the one or more programs are stored in the memory, and the processor, when executing the one or more programs, is configured to:

transmit data package through the transceiver, wherein the data packet comprises a medium access control layer (MAC) protocol data unit (PDU), the MAC PDU comprises multiple MAC subPDUs, and at least one MAC subPDU of the multiple MAC subPDUs comprises a MAC sub-header;

wherein the MAC sub-header comprises a first information field, and the first information field is configured to indicate whether the MAC sub-header comprises a length indication L field.

14. The network device according to claim 13, wherein the first information field is configured to indicate that the MAC sub-header comprises the L field, and a format of the MAC sub-header is the first information field/an extended bit R field/a logical channel identification (LCID) field/a bit length format indication F field/the L field.

15. The network device according to claim 13, wherein the first information field is configured to indicate that the MAC sub-header does not comprise the L field, and a format of the MAC sub-header is the first information field/a second information field/a logical channel identification (LCID) field, and the second information field is configured to indicate whether the receiving end reads the LCID field.

16. The network device according to claim 13, wherein the first information field is configured to indicate that the MAC sub-header does not comprise the L field, and a format of the MAC sub-header is the first information field/a second information field/a logical channel identification (LCID) field, or

the format of the MAC sub-header is the first information field/the second information field/a third information field;

wherein the second information field is configured to indicate the LCID field or the third information field, the third information field is configured to indicate multiple consecutive MAC subPDUs after the MAC sub-header, and each MAC subPDU of the multiple consecutive MAC subPDUs, except the MAC subPDU to which the MAC sub-header belongs, does not comprise a sub-header.

17. The network device according to claim 16, wherein the first information field is located in a first bit of the MAC sub-header, the second information field is located in a second bit of the MAC sub-header, and the third information field is located in a third bit to an eighth bit of the MAC sub-header.

18. The network device according to claim 13, wherein a bit length of the L field of the MAC subPDU, which comprises the L field, of the multiple MAC subPDUs is 7 or 15 or 8 or 16.