METHOD AND APPARATUS OF ALLOCATING UPLINK FEEDBACK CHANNEL FOR FEEDING DATA CORRESPONDING TO AN ENHANCED-PHYSICAL DOWNLINK CONTROL CHANNEL (E-PDCCH)

• US 20140204883A1
• Filed: 03/24/2014
• Published: 07/24/2014
• Est. Priority Date: 02/17/2011
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd., University-Industry Cooperation Foundation of Korea Aerospace University
• Original Assignee: Samsung Electronics Co. Ltd., University-Industry Cooperation Foundation of Korea Aerospace University
• Inventors: CLERCKX, Bruno, JUNG, Young Ho, LEE, Heun Chul
• Granted Patent: US 10,383,094 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 1/1864 ARQ related signaling H04L1/1607 takes precedence
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• 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 72/20 Control channels or signalling for resource management

Abstract

Provided is an uplink feedback channel allocation method and apparatus used to feedback data to indicate whether data packets corresponding an enhanced physical downlink control channel (E-PDCCH) were successfully decoded. A terminal may use an additional resource area of an uplink feedback channel or may use an empty resource area of the uplink feedback channel to which feedback information of a data packet corresponding to a physical downlink control channel (PDCCH) is not allocated, to perform feedback.

Claims

1. A communication method of a terminal, the method comprising:

receiving control information including an offset and resource information of data;

receiving the data based on the resource information;

determining a resource of feedback information for the data based on the offset; and

transmitting the feedback information using the resource.

2. The method of claim 1, wherein the determining of the resource of the feedback information comprises:

determining the resource based on the following equation;

n_PUCCH⁽¹⁾=n_CCE+N_PUCCH⁽¹⁾+N_offset

wherein n⁽¹⁾_PUCCH denotes the resource, n_CCE denotes a first value related to the control information, N⁽¹⁾_PUCCH denotes a second value related to a higher layer, and N_offset denotes the offset.

3. The method of claim 2, wherein the first value is an index of a first Control Channel Element (CCE) used for transmission of the control information.

4. The method of claim 1, wherein the determining of the resource of the feedback information comprises:

determining the resource based on the following equation;

n_PUCCH,0⁽¹⁾=n_CCE+N_PUCCH⁽¹⁾+l+N_offset

wherein n⁽¹⁾_PUCCH,0 denotes the resource, n_CCE denotes a first value related to the control information, N⁽¹⁾_PUCCH denotes a second value related to a higher layer, l denotes a fixed constant, and N_offset denotes the offset.

5. The method of claim 4, wherein the first value is an index of a first Control Channel Element (CCE) used for transmission of the control information.

6. The method of claim 1, wherein the offset is included in an offset field of the control information.

7. The method of claim 1, wherein the control information is received in an Enhanced-Physical Downlink Control CHannel (E-PDCCH).

8. The method of claim 1, wherein the feedback information is ACKnowledgment (ACK)/Negative ACKnowledgment (NACK) information.

16. The method of claim 1, wherein the feedback information is ACKnowledgment (ACK)/Negative ACKnowledgment (NACK) information.

9. A communication method of a base station, the method comprising:

transmitting control information including an offset and resource information of data;

transmitting the data; and

receiving feedback information for the data,

wherein a resource for the feedback information is determined based on the offset.

10. The method of claim 9, wherein the resource is determined based on the following equation:

n_PUCCH⁽¹⁾=n_CCE+N_PUCCH⁽¹⁾+N_offset

wherein n⁽¹⁾_PUCCH denotes the resource, n_CCE denotes a first value related to the control information, N⁽¹⁾_PUCCH denotes a second value related to a higher layer, and N_offset denotes the offset.

11. The method of claim 10, wherein the first value is an index of a first Control Channel Element (CCE) used for transmission of the control information.

12. The method of claim 9, wherein the resource is determined based on the following equation:

n_PUCCH,0⁽¹⁾=n_CCE+N_PUCCH⁽¹⁾+l+N_offset

wherein n⁽¹⁾_PUCCH,0 denotes the resource, n_CCE denotes a first value related to the control information, N⁽¹⁾_PUCCH denotes a second value related to a higher layer, l denotes a fixed constant, and N_offset denotes the offset.

13. The method of claim 12, wherein the first value is an index of a first Control Channel Element (CCE) used for transmission of the control information.

14. The method of claim 9, wherein the offset is included in an offset field of the control information.

15. The method of claim 9, wherein the control information is transmitted in an Enhanced-Physical Downlink Control CHannel (E-PDCCH).

17. A terminal comprising:

a receiver configured to receive control information including an offset and resource information of data, and to receive the data based on the resource information;

a controller configured to determine a resource of feedback information for the data based on the offset; and

a transmitter configured to transmit the feedback information using the resource.

18. The terminal of claim 17, wherein the controller determines the resource based on the following equation:

n_PUCCH⁽¹⁾=n_CCE+N_PUCCH⁽¹⁾+N_offset

wherein n⁽¹⁾_PUCCH denotes the resource, n_CCE denotes a first value related to the control information, N⁽¹⁾_PUCCH denotes a second value related to a higher layer, and N_offset denotes the offset.

19. The terminal of claim 18, wherein the first value is an index of a first Control Channel Element (CCE) used for transmission of the control information.

20. The terminal of claim 17, wherein the controller determines the resource based on the following equation:

n_PUCCH,0⁽¹⁾=n_CCE+N_PUCCH⁽¹⁾+l+N_offset

wherein n⁽¹⁾_PUCCH,0 denotes the resource, n_CCE denotes a first value related to the control information, N⁽¹⁾_PUCCH denotes a second value related to a higher layer, l denotes a fixed constant, and N_offset denotes the offset.

21. The terminal of claim 20, wherein the first value is an index of a first Control Channel Element (CCE) used for transmission of the control information.

22. The terminal of claim 17, wherein the offset is included in an offset field of the control information.

23. The terminal of claim 17, wherein the control information is received in an Enhanced-Physical Downlink Control CHannel (E-PDCCH).

24. The terminal of claim 17, wherein the feedback information is ACKnowledgment (ACK)/Negative ACKnowledgment (NACK) information.

25. A base station comprising:

a transmitter configured to transmit control information including an offset and resource information of data, and to transmit the data; and

a receiver configured to receive feedback information for the data;

wherein a resource for the feedback information is determined based on the offset.

26. The base station of claim 25, wherein the resource is determined based on the following equation:

n_PUCCH⁽¹⁾=n_CCE+N_PUCCH⁽¹⁾+N_offset

wherein n⁽¹⁾_PUCCH denotes the resource, n_CCE denotes a first value related to the control information, N⁽¹⁾_PUCCH denotes a second value related to a higher layer, and N_offset denotes the offset.

27. The base station of claim 26, wherein the first value is an index of a first Control Channel Element (CCE) used for transmission of the control information.

28. The base station of claim 25, wherein the resource is determined based on the following equation:

n_PUCCH,0⁽¹⁾=n_CCE+N_PUCCH⁽¹⁾+l+N_offset

wherein n⁽¹⁾_PUCCH,0 denotes the resource, n_CCE denotes a first value related to the control information, N⁽¹⁾_PUCCH denotes a second value related to a higher layer, l denotes a fixed constant, and N_offset denotes the offset.

29. The base station of claim 28, wherein the first value is an index of a first Control Channel Element (CCE) used for transmission of the control information.

30. The base station of claim 25, wherein the offset is included in an offset field of the control information.

31. The base station of claim 25, wherein the control information is transmitted in an Enhanced-Physical Downlink Control CHannel (E-PDCCH).

32. The base station of claim 25, wherein the feedback information is ACKnowledgment (ACK)/Negative ACKnowledgment (NACK) information.