METHOD AND APPARATUS FOR TRANSMITTING DATA, AND METHOD AND APPARATUS FOR TRANSMITTING DATA

• US 20150280876A1
• Filed: 11/13/2013
• Published: 10/01/2015
• Est. Priority Date: 11/13/2012
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: You, Hyangsun, Ahn, Joonkui, Yi, Yunjung, Yang, Suckchel, Kim, Bonghoe, Seo, Dongyoun
• Granted Patent: US 9,876,615 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04B 7/024 Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
• CPC Class Codes: H04B 7/0456 Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1816 with retransmission of the same, encoded, message
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/189 Transmission or retransmission of more than one copy of a message
• CPC Class Codes: H04L 2025/03802 Signalling on the reverse channel
• CPC Class Codes: H04L 25/0224 using sounding signals
• CPC Class Codes: H04L 25/03343 Arrangements at the transmitter end
• CPC Class Codes: H04L 27/2602 Signal structure
• CPC Class Codes: H04L 27/2613 Structure of the reference signals
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0082 at predetermined intervals
• CPC Class Codes: H04L 5/1469 using time-sharing

Abstract

The present invention provides a method and apparatus for transmitting data and a method and apparatus for receiving data, wherein said methods transmit/receive a reference signal in sub-frames bundled for data transmission/reception using at least an identical precoding matrix, an identical reference signal sequence, an identical reference signal generating identifier, or an identical reference signal scrambling sequence.

Claims

1. A method for transmitting data by a transmitting device, the method comprising:

transmitting the data in a bundle of multiple subframes; and

transmitting reference signals associated with the data in the multiple subframes,

wherein the data is transmitted on the same resource block in the multiple subframes.

2. The method according to claim 1,

wherein the data is precoded by the same precoding matrix in the multiple subframes.

3. The method according to claim 1, further comprising:

receiving acknowledgement (ACK)/negative ACK (NACK) information for the data in a subframe n+4 corresponding to a fourth subframe after a last subframe n of the multiple subframes; and

retransmitting the data in a subframe n+13 if the ACK/NACK information indicates NACK.

21. The method according to claim 1, wherein the references signals are transmitted on the same resource block in the multiple subframes.

22. The method according to claim 1, wherein the reference signals are precoded by the same precoding matrix in the multiple subframes.

4. (canceled)

5. (canceled)

6. A method for receiving data by a receiving device, the method comprising:

receiving the data and reference signals associated with the data in a bundle of multiple subframes; and

decoding the data based on the reference signals,

wherein the data is received on the same resource block in the multiple subframes.

7. The method according to claim 6,

wherein it is assumed that the same precoding matrix is applied to the data over the multiple subframes.

8. The method according to claim 6, further comprising:

transmitting acknowledgement (ACK)/negative ACK (NACK) information for the data in a subframe n+4 corresponding to a fourth subframe after a last subframe n of the multiple subframes.

9. The method according to claim 8, further comprising:

receiving retransmission of the data in a subframe n+13 if the ACK/NACK information indicates NACK.

10. The method according to claim 6,

wherein the data is received in each of at least two subframes among the multiple subframes, and

wherein it is assumed that the data has the same redundancy version over the at least two subframes.

23. The method according to claim 6, wherein the reference signals are received on the same resource block in the multiple subframes.

24. The method according to claim 6, wherein it is assumed that the reference signals are precoded by the same precoding matrix in the multiple subframes.

11. A device for transmitting data, the device comprising:

a radio frequency (RF) unit; and

a processor configured to control the RF unit, wherein the processor is configured to control the RF unit to transmit the data and reference signals associated with the data in a bundle of multiple subframes,

wherein the processor is configured to control the RF unit to transmit the data on the same resource block in the multiple subframes.

12. The device according to claim 11,

wherein the processor is configured to precode the data by the same precoding matrix over the multiple subframes.

13. The device according to claim 11,

wherein the processor is configured to control the RF unit to receive acknowledgement (ACK)/negative ACK (NACK) information for the data in a subframe n+4 corresponding to a fourth subframe after a last subframe n of the multiple subframes, and

wherein the processor is configured to control the RF unit to retransmit the data in a subframe n+13 if the ACK/NACK information indicates NACK.

14. (canceled)

15. (canceled)

16. A device for receiving data, the device comprising:

a radio frequency (RF) unit; and

a processor configured to control the RF unit, wherein the processor is configured to control the RF unit to receive the data and reference signals in a bundle of multiple subframes and configured to decode the data based on the reference signals,

wherein the data is received in the same resource block in the multiple subframes.

17. The device according to claim 16,

wherein the processor is configured to assume that the same precoding matrix is applied to the data over the multiple subframes.

18. The device according to claim 16,

wherein the processor is configured control the RF unit to transmit acknowledgement (ACK)/negative ACK (NACK) information for the data in a subframe n+4 corresponding to a fourth subframe after a last subframe n of the multiple subframes.

19. The device according to claim 18,

wherein the processor is configured to control the RF unit to receive retransmission of the data in a subframe n+13 if the ACK/NACK information indicates NACK.

20. The device according to claim 16,

wherein the data is received in each of at least two subframes among the multiple subframes, and

wherein the processor is configured to assume that the data has the same redundancy version over the at least two subframes.