Control Channel Element Indexing Scheme

• US 20140036813A1
• Filed: 08/02/2013
• Published: 02/06/2014
• Est. Priority Date: 08/03/2012
• Status: Active Grant

• Current Assignee: Nokia Solutions and Networks US LLC (Nokia Corporation)
• Original Assignee: Nokia Solutions and Networks US LLC (Nokia Corporation)
• Inventors: LUNTTILA, Timo Erkki, TIIROLA, Esa Tapani, HOOLI, Kari Juhani
• Granted Patent: US 10,455,553 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 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network

Abstract

The present invention provides a method, a apparatus and computer program product relating to a control channel element indexing scheme. The present invention includes obtaining information regarding first partition elements related to a first partitioning of channel resource elements carrying in downlink a configurable first control channel associated with a data channel, determining a number of second partition elements related to a second partitioning of channel resource elements per first partition element, determining for at least one second partition element a second-partition element index based on information regarding the first partition elements and the determined number, determining for at least one third partition element related to a third partitioning of channel resource elements, a third-partition element index, wherein the second partitioning is related to the allocation of channel resources of the first control channel, and wherein the third partitioning is related to allocating channel resources of a second control channel.

Claims

1. A method, comprising:

obtaining information regarding first partition elements related to a first partitioning of channel resource elements carrying in downlink a configurable first control channel associated with a data channel,

determining a number of second partition elements related to a second partitioning of channel resource elements per first partition element,

determining for at least one second partition element a second-partition element index based on information regarding the first partition elements and the determined number,

determining for at least one third partition element related to a third partitioning of channel resource elements, a third-partition element index,

wherein the second partitioning is related to the allocation of channel resources of the first control channel, and

wherein the third partitioning is related to allocating channel resources of a second control channel.

2. The method according to claim 1, further comprising

receiving a data packet transmitted on the data channel, and

providing feedback information in uplink direction on the second control channel about successful or unsuccessful reception of the data packet.

3. The method according to claim 1,

wherein the first partitioning is related to allocating channel resources of the data channel.

4. The method according to claim 1,

wherein at least one of the second-partition element index and information regarding first partition elements is unique in a cell.

5. The method according to claim 1,

wherein at least one of the second-partition element index and information regarding first partition elements is unique per user equipment.

6. The method according to claim 1,

wherein each second-partition element index is mapped to one or more third-partition element indexes.

7. The method according to claim 1, wherein

determining the number of second-partition elements comprises deriving the number from a subframe type.

8. The method according to claim 1, wherein

the second-partition element indices are determined so as to form a continuous set of indices.

9. The method according to claim 1, wherein

the second-partition element indices are determined starting from the second-partition element on the first partition element with the lowest index.

10. The method according to claim 1, wherein

the second-partition element indices are determined starting from the second-partition element on the first partition element with the highest index.

11. The method according to claim 1, wherein

determining at least one third-partition element index comprises one-to-one mapping between the second-partition element index and the third-partition element index starting from the lowest second-partition element index.

12. The method according to claim 1, wherein

determining at least one third-partition element index comprises many-to-one mapping between the second-partition element index and the third-partition element index.

13. The method according to claim 12, further comprising

a collision avoidance mechanism.

14. The method according to claim 13, wherein

the collision avoidance mechanism comprises including a specific field modifying the implicit uplink channel resource allocation.

15. The method according to claim 13, wherein

the collision avoidance mechanism comprises first control channel scheduling including selecting at least one second-partition element used for the first control channel.

16. The method according to claim 12, wherein

the many-to-one mapping comprises one-to-one mapping between the second-partition element index and the third-partition element index for the second-partition elements contained on one first-partition element.

17. The method according to claim 1, wherein

the method is executed by a user equipment, wherein obtaining information regarding first partition elements includes receiving the information from a base station.

18. The method according to claim 17, further comprising

receiving an offset parameter indicating the first second-partition element index from a base station.

51. A computer program product including a program for a processing device, comprising software code portions for performing the steps of claim 1 when the program is run on the processing device.

19-25. -25. (canceled)

26. An apparatus comprising

a receiver/transmitter configured to communicate with at least another apparatus,

a memory configured to store computer program code, and

a processor configured to cause the apparatus to perform:

obtaining information regarding first partition elements related to a first partitioning of channel resource elements carrying in downlink a configurable first control channel associated with a data channel,

determining a number of second partition elements related to a second partitioning of channel resource elements per first partition element,

determining for at least one second partition element a second-partition element index based on information regarding the first partition elements and the determined number,

determining for at least one third partition element related to a third partitioning of channel resource elements, a third-partition element index,

wherein the second partitioning is related to the allocation of channel resources of the first control channel, and

wherein the third partitioning is related to allocating channel resources of a second control channel.

27-50. -50. (canceled)

52-53. -53. (canceled)