PUCCH resource allocation with enhanced PDCCH

• US 9,072,088 B2
• Filed: 04/21/2014
• Issued: 06/30/2015
• Est. Priority Date: 05/30/2012
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Han, Seunghee, Zhu, Yuan, Fwu, Jong-Kae
• Primary Examiner(s): Qureshi, Afsar M
• Application Number:
  US14/257,709
• Publication Number:
  US 20140241278A1
• Time in Patent Office: 435 Days
• Field of Search: 370310-350
• US Class Current: 1/1
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• 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
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Embodiments of the present disclosure include methods, apparatuses, and instructions for receiving at a user equipment (UE) of a third generation partnership project (3GPP) network an offset value selected from a plurality of offset values in downlink control information. The UE also receives one or more enhanced control channel elements (eCCEs) of an enhanced physical downlink control channel (ePDCCH). The UE may then determine an allocation of an uplink resource for a transmission on a physical uplink control channel (PUCCH) based at least in part on the index of a first eCCE and the offset value.

Claims

1. An eNodeB (eNB) comprising:

first circuitry to;

transmit, on an enhanced physical downlink control channel (ePDCCH), an

indication of an offset value selected from a plurality of offset values comprising

offset values of −

2, −

1, 0, and 2; and

transmit, on the ePDCCH, one or more enhanced control channel elements

(eCCEs) of the ePDCCH; and

second circuitry to identify a signal on an uplink resource of a physical uplink control channel (PUCCH) that is allocated based at least in part on an index of a first eCCE of the one or more eCCEs and the selected offset value.

2. The eNB of claim 1, wherein the first circuitry is to transmit the indication of the offset value in downlink control information transmitted in the ePDCCH.

3. The eNB of claim 1, wherein the uplink resource is allocated based at least in part on a multiplication of the selected offset value by a scaling factor.

4. The eNB of claim 1, wherein the index of the first eCCE is less than an index of other eCCEs of the one or more eCCEs.

5. The eNB of claim 1, wherein the uplink resource is allocated based at least in part on a starting offset value for a set of the ePDCCH.

6. The eNB of claim 5, wherein the starting offset value is a user equipment (UE) specific starting offset value.

7. The eNB of claim 6, wherein the selected offset value further comprises the UE specific starting offset value or a cell specific starting offset value.

8. The eNB of claim 1, wherein the eNB is coupled with an input device.

9. One or more non-transitory computer-readable media comprising instructions to, upon execution of the instructions by one or more processors of a user equipment (UE), cause the UE to:

monitor an enhanced physical downlink control channel (ePDCCH) for an offset value selected from a set comprising −

2, −

1, 0, and 2;

obtain one or more enhanced control channel elements (eCCEs) of the ePDCCH; and

determine an allocation of an uplink resource of a physical uplink control channel (PUCCH) based at least in part on an index of a first eCCE of the one or more eCCEs and the offset value.

10. The one or more non-transitory computer-readable media of claim 9, wherein the offset value is signaled in downlink control information in the ePDCCH.

11. The one or more non-transitory computer-readable media of claim 9, wherein the instructions are further to determine the first allocation based at least in part on a result of the offset value multiplied by a scaling factor.

12. The one or more non-transitory computer-readable media of claim 9, wherein the index of the first eCCE is less than an index of other eCCEs of the one or more eCCEs.

13. The one or more non-transitory computer-readable media of claim 9, wherein the instructions are further to determine the first allocation of the uplink resource based at least in part on a starting offset value for a set of the ePDCCH selected from a plurality of sets of the ePDCCH.

14. The one or more non-transitory computer-readable media of claim 13, wherein the starting offset value is a starting offset value specific to the UE.

15. The one or more non-transitory computer-readable media of claim 14, wherein the offset value is based at least in part on the starting offset value or a starting offset value specific to a cell.

16. An eNodeB (eNB) comprising:

a transmitter to transmit an indication of an offset value of 2, and one or more enhanced control channel elements (eCCEs) of an enhanced physical downlink control channel (ePDCCH);

a processor coupled with the receiver, the processor to allocate an uplink resource of a physical uplink control channel based at least in part on an index of a first eCCE of the one or more eCCEs and the offset value; and

a receiver coupled with the transmitter, the receiver to receive a signal on a physical uplink control channel (PUCCH) that uses an uplink resource that is allocated based at least in part on an index of a first eCCE of the one or more eCCEs and the offset value.

17. The eNB of claim 16, wherein the transmitter is to transmit the offset value in downlink control information of the ePDCCH.

18. The eNB of claim 16, wherein the uplink resource is further based at least in part on the offset value as multiplied by a scaling factor.

19. The eNB of claim 16, wherein the index of the first eCCE is less than an index of other eCCEs of the one or more eCCEs.

20. The eNB of claim 16, wherein the uplink resource is allocated based at least in part on a starting offset value for a set of the ePDCCH.

21. The eNB of claim 20, wherein the starting offset value is specific to a user equipment (UE).

22. The eNB of claim 21, wherein the offset value is based at least in part on the starting offset value or on a starting offset value specific to a cell.

23. The eNB of claim 16, wherein the offset value of 2 is selected from the set consisting of −

2, −

1, 0, and 2.