PUCCH resource allocation with enhanced PDCCH

• US 10,237,855 B2
• Filed: 07/10/2017
• Issued: 03/19/2019
• 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:
  US15/645,162
• Publication Number:
  US 20170311306A1
• Time in Patent Office: 617 Days
• 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. A method comprising:

identifying, by a user equipment (UE), an offset value of 2;

identifying, by the UE, an uplink resource based on the offset value, and further based on one or more enhanced control channel elements (eCCEs) of an enhanced physical downlink control channel (ePDCCH); and

transmitting, by the UE, an uplink signal on the uplink resource.

2. The method of claim 1, wherein the uplink resource is an uplink resource of a physical uplink control channel (PUCCH).

3. The method of claim 1, further comprising identifying, by the UE based on a signal received on the ePDCCH, an indication of the offset value.

4. The method of claim 3, further comprising identifying, by the UE, the indication of the offset value in downlink control information of the signal received on the ePDCCH.

5. The method of claim 3, further comprising selecting, by the UE based on the indication of the offset value, the offset value of 2 from a plurality of stored offset values.

6. The method of claim 1, further comprising allocating, by the UE, the uplink resource based on an index of a first eCCE of the one or more eCCEs.

7. The method of claim 6, wherein the index of the first eCCE is less than an index of other eCCEs of the one or more eCCEs.

8. One or more non-transitory computer-readable media comprising instructions that, upon execution by one or more processors of an evolved NodeB (eNB), are to cause the eNB to:

receive an uplink transmission of an uplink channel; and

identify a signal on an uplink resource of the uplink transmission that is based on an enhanced control channel element (eCCE) of a downlink channel and an offset value of 2.

9. The one or more non-transitory computer-readable media of claim 8, wherein the uplink channel is a physical uplink control channel (PUCCH).

10. The one or more non-transitory computer-readable media of claim 8, wherein the downlink channel is an enhanced physical downlink control channel (ePDCCH).

11. The one or more non-transitory computer-readable media of claim 8, wherein the instructions are further to transmit an indication of the offset value of 2.

12. The one or more non-transitory computer-readable media of claim 8, wherein the offset value of 2 is selected from a plurality of stored offset values.

13. The one or more non-transitory computer-readable media of claim 8, wherein the uplink resource of the uplink transmission is allocated based on an index of the enhanced control channel element (eCCE).

14. The one or more non-transitory computer-readable media of claim 13, wherein the index of the eCCE is lower than an index of other eCCEs of the downlink channel.

15. A method comprising:

identifying, by an evolved NodeB (eNB), a received uplink transmission of an uplink channel; and

identifying, by the eNB, a signal on an uplink resource of the uplink transmission that is based on an enhanced control channel element (eCCE) of a downlink channel and an offset value of 2.

16. The method of claim 15, wherein the uplink channel is a physical uplink control channel (PUCCH).

17. The method of claim 15, wherein the downlink channel is an enhanced physical downlink control channel (ePDCCH).

18. The method of claim 15, wherein the instructions are further to transmit an indication of the offset value of 2.

19. The method of claim 15, wherein the offset value of 2 is selected from a plurality of stored offset values.

20. The method of claim 15, wherein the uplink resource of the uplink transmission is allocated based on an index of the enhanced control channel element (eCCE).

21. The method of claim 20, wherein the index of the eCCE is lower than an index of other eCCEs of the downlink channel.