Method and apparatus of allocating uplink feedback channel for feeding data corresponding to an enhanced-physical downlink control channel (E-PDCCH)

• US 10,383,094 B2
• Filed: 03/24/2014
• Issued: 08/13/2019
• Est. Priority Date: 02/17/2011
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Heun Chul, Clerckx, Bruno, Jung, Young Ho
• Primary Examiner(s): Aung, Sai
• Application Number:
  US14/223,225
• Publication Number:
  US 20140204883A1
• Time in Patent Office: 1,968 Days
• Field of Search: 370328, 370329, 370330
• 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,

wherein the control information is received in an enhanced-physical downlink control channel (E-PDCCH).

2. The method of claim 1,

wherein the determining of the resource of the feedback information comprises:

determining the resource of the feedback information based on the following equation;

n_PUCCH⁽¹⁾=n_CCE+N_PUCCH⁽¹⁾+N_offset

wherein n⁽¹⁾_PUCCH denotes the resource of a physical uplink control channel (PUCCH), n_CCE denotes an index of a first control channel element (CCE) used for transmission of 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 1, wherein the determining of the resource of the feedback information comprises:

determining the resource of the feedback information 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 of a physical uplink control channel (PUCCH), n_CCE denotes an index of a first control channel element (CCE) used for transmission of 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.

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

5. The method of claim 1, wherein the feedback information comprises acknowledgement (ACK)/negative acknowledgement (NACK) information.

6. 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 of the feedback information is determined based on the offset,

wherein the control information is transmitted in an enhanced-physical downlink control channel (E-PDCCH).

7. The method of claim 6, wherein the resource of the feedback information is determined based on the following equation:

n_PUCCH⁽¹⁾=n_CCE+N_PUCCH⁽¹⁾+N_offset

wherein n⁽¹⁾_PUCCH denotes the resource of a physical uplink control channel (PUCCH), n_CCE denotes an index of a first control channel element (CCE) used for transmission of the control information, N⁽¹⁾_PUCCH denotes a second value related to a higher layer, and N_offset denotes the offset.

8. The method of claim 6, wherein the resource of the feedback information is determined based on the following equation:

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

 

[Equation 1]

wherein n⁽¹⁾_PUCCH,0 denotes the resource of a physical uplink control channel (PUCCH), n_CCE denotes an index of a first control channel element (CCE) used for transmission of 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.

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

10. The method of claim 6, wherein the feedback information comprises acknowledgement (ACK)/negative acknowledgement (NACK) information.

11. 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,

wherein the control information is received in an enhanced-physical downlink control channel (E-PDCCH).

12. The terminal of claim 11, wherein the controller determines the resource of the feedback information based on the following equation:

n_PUCCH⁽¹⁾=n_CCE+N_PUCCH⁽¹⁾+N_offset

wherein N⁽¹⁾_PUCCH denotes the resource of a physical uplink control channel (PUCCH), n_CCE denotes an index of a first control channel element (CCE) used for transmission of the control information, N⁽¹⁾_PUCCH denotes a second value related to a higher layer, and N_offset denotes the offset.

13. The terminal of claim 11, wherein the controller determines the resource of the feedback information 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 of a physical uplink control channel (PUCCH), n_CCE denotes an index of a first control channel element (CCE) used for transmission of 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.

14. The terminal of claim 11, wherein the offset is included in an offset field of the control information.

15. The terminal of claim 11, wherein the feedback information comprises acknowledgement (ACK)/negative acknowledgement (NACK) information.

16. 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,

wherein the control information is received in an enhanced-physical downlink control channel (E-PDCCH).

17. The base station of claim 16, wherein the resource of the feedback information is determined based on the following equation:

n_PUCCH⁽¹⁾=n_CCE+N_PUCCH⁽¹⁾+N_offset

wherein N⁽¹⁾_PUCCH denotes the resource of a physical uplink control channel (PUCCH), n_CCE denotes an index of a first control channel element (CCE) used for transmission of the control information, N⁽¹⁾_PUCCH denotes a second value related to a higher layer, and N_offset denotes the offset.

18. The base station of claim 16, wherein the resource of the feedback information 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 of a physical uplink control channel (PUCCH), n_CCE denotes an index of a first control channel element (CCE) used for transmission of 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.

19. The base station of claim 16, wherein the offset is included in an offset field of the control information.

20. The base station of claim 16, wherein the feedback information comprises acknowledgement (ACK)/negative acknowledgement (NACK) information.