PUCCH resource allocation with enhanced PDCCH

• US 8,743,820 B2
• Filed: 11/09/2012
• Issued: 06/03/2014
• Est. Priority Date: 05/30/2012
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Zhu, Yuan, Fwu, Jong-Kae, Han, Seunghee
• Primary Examiner(s): Qureshi, Afsar M
• Application Number:
  US13/673,791
• Publication Number:
  US 20130322352A1
• Time in Patent Office: 571 Days
• Field of Search: 370/241, 370310-350
• US Class Current: 370/329
• 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. User equipment (UE) circuitry to:

receive, on an enhanced physical downlink control channel (ePDCCH), an indication of an offset value;

receive, on the ePDCCH, one or more enhanced control channel elements (eCCEs) of the ePDCCH;

select, based on the indication of the offset value, an offset value from a table comprising a plurality of stored offset values, the plurality of stored offset values comprising offset values of −

2, −

1, 0, and 2; and

determine 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 selected offset value.

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

3. The UE circuitry of claim 1, wherein the UE circuitry is to determine allocation of the uplink resource based at least in part on a multiplication of the selected offset value by a scaling factor.

4. The UE circuitry 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 UE circuitry of claim 1, wherein the UE circuitry is to determine allocation of the uplink resource based at least in part on a starting offset value for a set of the ePDCCH.

6. The UE circuitry of claim 5, wherein the starting offset value is a UE specific starting offset value.

7. The UE circuitry 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 UE circuitry of claim 1, wherein the UE circuitry is coupled with a graphics chip.

9. A user equipment (UE) comprising:

receiving circuitry to;

monitor an enhanced physical downlink control channel (ePDCCH) for an offset value of 2;

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

obtain one or more control channel elements (CCEs) of a physical downlink control channel (PDCCH); and

processing circuitry coupled with the receiving circuitry, the processing circuitry to;

determine a first 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; and

determine a second allocation of an uplink resource of the PUCCH based at least in part on an index of a first CCE of the one or more CCEs, the first allocation and the second allocation being different from one another.

10. The UE of claim 9, wherein the offset value is signaled in downlink control information in the ePDCCH.

11. The UE of claim 9, wherein the processing circuitry is to determine the first allocation based at least in part on a result of the offset value multiplied by a scaling factor.

12. The UE 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 UE of claim 9, wherein the processing circuitry is 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 UE of claim 13, wherein the starting offset value is a starting offset value specific to the UE.

15. The UE 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. The UE of claim 9, wherein the offset value of 2 is selected from the set consisting of −

2, −

1, 0, and 2.

17. A user equipment (UE) comprising:

a receiver to receive 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 transmitter coupled with the processor, the transmitter to transmit a signal on the physical uplink control channel using the first uplink resource.

18. The UE of claim 17, wherein the receiver is to receive the offset value in downlink control information of the ePDCCH.

19. The UE of claim 17, wherein the processor is to allocate the uplink resource based at least in part on the offset value as multiplied by a scaling factor.

20. The UE of claim 17, wherein the index of the first eCCE is less than an index of other eCCEs of the one or more eCCEs.

21. The UE of claim 17, wherein the processor is to allocate the uplink resource based at least in part on a starting offset value for a set of the ePDCCH.

22. The UE of claim 21, wherein the starting offset value is specific to the UE.

23. The UE of claim 22, 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.

24. The UE of claim 17, wherein the offset value of 2 is selected from the set consisting of −

2, −

1, 0, and 2.

25. The UE of claim 17, further comprising a display coupled with the processor.