HARQ frame data structure and method of transmitting and receiving with HARQ in systems using blind detection

• US 10,631,179 B2
• Filed: 02/12/2019
• Issued: 04/21/2020
• Est. Priority Date: 02/18/2014
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Djukic, Petar, Nikopour, Hosein
• Primary Examiner(s): Tabone, Jr., John J
• Application Number:
  US16/273,535
• Publication Number:
  US 20190174335A1
• Time in Patent Office: 434 Days
• Field of Search: 714748, 714712, 714749, 370392, 370394, 370474
• CPC Class Codes: H04L 1/0038 Blind format detection for detection of modulation format H04L27/0012
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0061 Error detection codes
• CPC Class Codes: H04L 1/007 Unequal error protection for format H04L1/0078; for codes per se H03M13/35
• CPC Class Codes: H04L 1/0072 Error control for data other than payload data, e.g. control data
• CPC Class Codes: H04L 1/008 where the control data relates to payload of a different packet
• 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 1/1845 Combining techniques, e.g. code combining
• CPC Class Codes: H04L 1/188 Time-out mechanisms
• CPC Class Codes: H04L 1/1896 ARQ related signaling
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A HARQ frame data structure and methods of transmitting and receiving with HARQ in systems using blind detection. In one embodiment, a method of transmitting over a channel using HARQ includes transmitting a first frame containing data toward a blind detection receiver, and transmitting a second frame containing at least a portion of the data and information about the first frame toward the blind detection receiver.

Claims

1. A method for wireless communication, comprising:

transmitting a first frame containing first data to a receiver; and

transmitting a second frame, the second frame containing at least a portion of the first data, the transmitting of the second frame being caused by receipt of a negative acknowledgement for the first frame before a timer expires.

2. The method of claim 1, further comprising:

starting the timer upon transmission of the first frame.

3. The method of claim 1, wherein the first frame has a first modulation and coding, and a header of the second frame has a second modulation and coding different from the first modulation and coding.

4. The method of claim 3, wherein a data field of the second frame has a third modulation and coding different from the second modulation and coding.

5. The method of claim 1, wherein the second frame includes information that identifies the first frame.

6. The method of claim 5, wherein the information that identifies the first frame includes an identifier of a pilot sequence included in the first frame.

7. The method of claim 1, wherein the second frame includes a cyclic redundancy check (CRC).

8. The method of claim 7, wherein the CRC includes a single CRC for a header and a data portion of the second frame.

9. The method of claim 7, wherein the CRC includes a first CRC for a header of the second frame and a second CRC for a data portion of the second frame.

10. A wireless device comprising:

a transmitter; and

a processor configured to;

transmit a first frame containing first data to a receiver; and

transmit a second frame, the second frame containing at least a portion of the first data, the transmitting of the second frame being caused by receipt of a negative acknowledgement for the first frame before a timer expires.

11. The wireless device of claim 10, the processor further configured to:

start the timer upon transmission of the first frame.

12. The wireless device of claim 10, wherein the first frame has a first modulation and coding, and a header of the second frame has a second modulation and coding different from the first modulation and coding.

13. The wireless device of claim 12, wherein a data field of the second frame has a third modulation and coding different from the second modulation and coding.

14. The wireless device of claim 10, wherein the second frame includes information that identifies the first frame.

15. The wireless device of claim 14, wherein the information that identifies the first frame includes an identifier of a pilot sequence included in the first frame.

16. The wireless device of claim 10, wherein the second frame includes a cyclic redundancy check (CRC).

17. The wireless device of claim 16, wherein the CRC includes a single CRC for a header and a data portion of the second frame.

18. The wireless device of claim 16, wherein the CRC includes a first CRC for a header of the second frame and a second CRC for a data portion of the second frame.

19. A non-transitory computer-readable medium having instructions stored thereon that, when executed by a wireless device, cause the wireless device to perform operations, the operations comprising:

transmitting a first frame containing first data to a receiver; and

transmitting a second frame, the second frame containing at least a portion of the first data, the transmitting of the second frame being caused by receipt of a negative acknowledgement for the first frame before a timer expires.

20. The non-transitory computer-readable medium of claim 19, the operations further comprising:

starting the timer upon transmission of the first frame.