TRANSMITTING DATA IN A MOBILE COMMUNICATION SYSTEM

• US 20100290400A1
• Filed: 06/09/2010
• Published: 11/18/2010
• Est. Priority Date: 01/05/2006
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Young Dae, Park, Sung Jun, Chun, Sung Duck, Jung, Myung Cheul
• Granted Patent: US 8,340,026 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04L 1/1621 Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
• CPC Class Codes: H04L 1/1825 Adaptation of specific ARQ protocol parameters according to transmission conditions
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1893 Physical mapping arrangements physical resource mapping in general H04L5/00
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/18 End to end
• CPC Class Codes: H04L 47/34 ensuring sequence integrity, e.g. using sequence numbers
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04W 28/04 Error control
• CPC Class Codes: H04W 28/065 using assembly or disassembly of packets
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The present invention is related to transmitting data in a mobile communication system. Preferably, the present invention comprises transmitting first data to a receiving side and receiving acknowledgment information for indicating whether the first data was successfully transmitted to the receiving side. If the first data was not successfully transmitted to the receiving side, the method further comprises determining whether an amount of available radio resources is sufficient for retransmitting the first data to the receiving side, retransmitting the first data to the receiving side if the amount of available radio resources is sufficient to retransmit the first data, reconfiguring the first data into at least one second data if the amount of available radio resources is insufficient to retransmit the first data, wherein the at least one second data can be transmitted to the receiving side using the amount of available radio resources, and transmitting the at least one second data to the receiving side.

Claims

1. A method for transmitting data in a mobile communication system, the method comprising:

transmitting first data to a receiving side;

receiving acknowledgment information for indicating whether the first data was successfully transmitted to the receiving side;

if the first data was not successfully transmitted to the receiving side, determining whether an amount of available radio resources is sufficient for retransmitting the first data to the receiving side;

retransmitting the first data to the receiving side if the amount of available radio resources is sufficient to retransmit the first data;

reconfiguring the first data into at least one second data if the amount of available radio resources is insufficient to retransmit the first data, wherein the at least one second data can be transmitted to the receiving side using the amount of available radio resources; and

transmitting the at least one second data to the receiving side.

2. The method of claim 1, wherein the acknowledgment information is received from the receiving side.

3. The method of claim 1, wherein the acknowledgment information is received from a lower layer of a transmitting side.

4. The method of claim 1, wherein the first data is a radio link control layer protocol data unit (RLC PDU comprising at least one of:

a sequence number (SN) field;

a control/data/subframe (C/D/S field;

a complete/partial (C/P) field;

a following (F) field; and

a length indicator (LI) field.

5. The method of claim 4, wherein the control/data/subframe (C/D/S) field indicates whether the RLC PDU is the first data or second data.

6. The method of claim 4, wherein the C/P field indicates how the RLC PDU is aligned to an upper layer service data unit (SDU).

7. The method of claim 1, wherein the second data is a radio link control layer sub protocol data unit (RLC subPDU) comprising at least one of:

a sequence number (SN) field;

a control/data/subframe (C/D/S) field;

a subframe sequence number (sSN) field;

a remaining (RM) field;

a complete/partial (C/P) field;

a following (F) field; and

a length indicator (LI) field.

8. The method of claim 7, wherein the sSN field indicates a sequential order of one of the at least one second data within a plurality of transmitted second data related to the first data.

9. The method of claim 7, wherein the RM field indicates whether a subsequent second data exists after one of the at least one second data.

10. The method of claim 1, wherein the amount of available radio resources comprises a maximum amount of data scheduled to be transmitted to the receiving side.

11. The method of claim 1, wherein a maximum amount of available radio resources is indicated by scheduling information received from a network.

12. The method of claim 11, wherein the scheduling information indicates timing and frequency of the available radio resources.

13. An apparatus for transmitting data in a mobile communication system, the apparatus comprising:

means for transmitting first data to a receiving side;

means for receiving acknowledgment information for indicating whether the first data was successfully transmitted to the receiving side;

if the first data was not successfully transmitted to the receiving side, means for determining whether an amount of available radio resources is sufficient for retransmitting the first data to the receiving side;

means for retransmitting the first data to the receiving side if the amount of available radio resources is sufficient to retransmit the first data;

means for reconfiguring the first data into at least one second data if the amount of available radio resources is insufficient to retransmit the first data, wherein the at least one second data can be transmitted to the receiving side using the amount of available radio resources; and

means for transmitting the at least one second data to the receiving side.

14. The apparatus of claim 13, wherein the acknowledgment information is received from the receiving side.

15. The apparatus of claim 13, wherein the acknowledgment information is received from a lower layer of a transmitting side.

16. The apparatus of claim 13, wherein the first data is a radio link control layer protocol data unit (RLC PDU) comprising at least one of:

a sequence number (SN) field;

a control/data/subframe (C/D/S) field;

a complete/partial (C/P) field;

a following (F) field; and

a length indicator (LI) field.

17. The apparatus of claim 13, wherein the second data is a radio link control layer sub protocol data unit (RLC subPDU) comprising at least one of:

a sequence number (SN) field;

a control/data/subframe (C/D/S) field;

a subframe sequence number (sSN) field;

a remaining (RM) field;

a complete/partial (C/P) field;

a following (F) field; and

a length indicator (LI) field.

18. The apparatus of claim 13, wherein the amount of available radio resources comprises a maximum amount of data scheduled to be transmitted to the receiving side.

19. The apparatus of claim 13, wherein a maximum amount of available radio resources is indicated by scheduling information received from a network

20. The apparatus of claim 19, wherein the scheduling information indicates timing and frequency of the available radio resources.