HARQ Frame Data Structure and Method of Transmitting and Receiving with HARQ in Systems Using Blind Detection

• US 20160286416A1
• Filed: 06/13/2016
• Published: 09/29/2016
• 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
• Granted Patent: US 10,212,613 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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, comprising:

determining a need to resend, to a receiver, data from a frame previously transmitted using a blind detection protocol;

generating a frame having at least a portion of the data from the previously transmitted frame and information identifying the previously transmitted frame; and

transmitting the generated frame toward the receiver using the blind detection protocol.

2. The method of claim 1, wherein determining the need to resend the data comprises at least one of:

receiving a negative acknowledgement message for the previously transmitted frame from the receiver, and

expiry of an acknowledgement timer without receipt of an acknowledgement for the previously transmitted frame.

3. The method of claim 1, wherein the information identifying the previously transmitted frame includes a resource unit (RU) used for transmitting of the previous frame, and

wherein the RU includes time and frequency resource information associated with the previously transmitted frame.

4. The method of claim 1, wherein the generated frame includes a data field containing the portion of the data, and a header field containing the information identifying the previously transmitted frame.

5. The method of claim 4, wherein the generated frame includes a cyclic redundancy check (CRC) block for one of the data field and the information identifying the previous frame.

6. The method of claim 4, wherein the transmitting the generated frame includes:

applying a first modulation and coding to the data field; and

applying a second modulation and coding, different than the first modulation and coding, to the header field.

7. A method, comprising:

receiving a frame containing at least a portion of data from a previous frame and information identifying the previous frame;

decoding the information identifying the previous frame;

creating a combined frame by combining the portion of data with the identified previous frame; and

decoding the combined frame.

8. The method of claim 7, further comprising transmitting a negative acknowledgement message for the previous frame in response to failing to decode the combined frame.

9. The method of claim 7, wherein the information identifying the previous frame includes an identification of a Resource Unit, and the method further comprising determining the resource unit (RU) of a channel used for the previous frame in accordance with the information identifying the previous frame.

10. The method of claim 7 wherein the information identifying the previous frame includes a sequence number for the previous frame.

11. The method of claim 10 further comprising determining an origin user equipment (UE) for the previous frame.

12. The method of claim 11, further comprising attempting to decode the combined frame for all possible origin user equipment (UEs) of the previous frame and the frame in response to a failure of one or more of the decoding information identifying the previous frame and the combining the previous frame and the portion of the data into a combined frame by associating the frame and the previous frame according to the decoded information identifying the previous frame.

13. A device, comprising:

a transmitter;

a processor coupled to the transmitter; and

a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions for;

determining a need to resend, to a receiver, data from a frame previously transmitted using a blind detection protocol;

generating a frame having at least a portion of the data from the previously transmitted frame and information identifying the previously transmitted frame; and

transmitting the generated frame toward the receiver using the blind detection protocol.

14. The device of claim 13, wherein the instructions for determining the need to resend the data comprises instructions for performing at least one of:

receiving a negative acknowledgement message for the previously transmitted frame from the receiver, and

expiry of an acknowledgement timer without receipt of an acknowledgement for the previously transmitted frame.

15. The device of claim 13, wherein the information identifying the previously transmitted frame includes a resource unit (RU) used for transmitting of the previous frame, and

wherein the RU includes time and frequency resource information of the transmitting the previously transmitted frame.

16. The device of claim 13, wherein the generated frame includes a data field containing the portion of the data, and a header field containing the information identifying the previously transmitted frame.

17. The device of claim 16, wherein the generated frame includes a cyclic redundancy check (CRC) block for one of the data field and the information identifying the previous frame.

18. The device of claim 16, wherein the instructions for transmitting the generated frame includes instructions for:

applying a first modulation and coding to the data field; and

applying a second modulation and coding, different than the first modulation and coding, to the header field.

19. A device, comprising:

a receiver configured to receive a frame containing at least a portion of data from a previous frame and information identifying the previous frame;

a processor coupled to the receiver; and

a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions for;

decoding the information identifying the previous frame;

creating a combined frame by combining the portion of the data with the identified previous frame; and

decoding the combined frame.

20. The device of claim 19, wherein the program further includes instructions for transmitting a negative acknowledgement message for the previous frame in response to failing to decode the combined frame.

21. The device of claim 19, wherein the information identifying the previous frame includes an identification of a resource unit (RU);

and

wherein the program further includes instructions for determining the RU of a channel used for the previous frame in accordance with the information identifying the previous frame.

22. The device of claim 19, wherein the information identifying the previous frame includes a sequence number for the previous frame.

23. The device of claim 22, wherein the program further includes instructions for determining an origin user equipment (UE) for the previous frame.

24. The device of claim 23, wherein the program further includes instructions for attempting to decode the combined frame for all possible origin user equipment (UEs) of the previous frame and the frame in response to a failure of one or more of the decoding information identifying the previous frame and the combining the previous frame and the portion of the data into a combined frame by associating the frame and the previous frame according to the decoded information identifying the previous frame.