METHODS AND APPARATUSES FOR ALLOCATING WIRELESS RESOURCES IN WIRELESS NETWORK

• US 20140092820A1
• Filed: 03/14/2013
• Published: 04/03/2014
• Est. Priority Date: 09/28/2012
• Status: Active Grant

• Current Assignee: WSOU Investments, LLC (WSOU Holdings, LLC)
• Original Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Inventors: YE, Sigen, BAKER, Matthew P J, WONG, Shin Horng
• Granted Patent: US 9,161,342 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0039 Frequency-contiguous, i.e. with no allocation of frequencies for one user or terminal between the frequencies allocated to another
• CPC Class Codes: H04L 5/0041 Frequency-non-contiguous
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

In a method for transmitting control information in a wireless network, a wireless resource allocation module assigns at least one of (i) a first plurality of enhanced resource element groups to a first set of enhanced control channel elements, and (ii) a second plurality of enhanced resource element groups to a second set of enhanced control channel elements; and a transceiver transmits the control information to at least one radio frequency equipment using at least one of the first and second sets of enhanced control channel elements.

Claims

1. A method for transmitting control information in a wireless network, the method comprising:

assigning at least one of (i) a first plurality of enhanced resource element groups to a first set of enhanced control channel elements, and (ii) a second plurality of enhanced resource element groups to a second set of enhanced control channel elements; and

transmitting the control information to at least one radio frequency equipment using at least one of the first and second sets of enhanced control channel elements;

wherein

the first plurality of enhanced resource element groups for each first enhanced control channel element have equally spaced indices within a single physical resource block pair for at least a first control channel transmission set, and

the second plurality of enhanced resource element groups for each second enhanced control channel element are from multiple physical resource block pairs for at least a second control channel transmission set.

2. The method of claim 1, wherein the first control channel transmission set and the second control channel transmission set have one of a same and different set of physical resource block pairs.

3. The method of claim 1, wherein the enhanced control channel elements in the first set of enhanced control channel elements are indexed sequentially in the physical resource block pairs within the first control channel transmission set.

4. The method of claim 1, wherein the enhanced control channel elements in the second set of enhanced control channel elements are indexed uniquely within the second control channel transmission set.

5. The method of claim 4, wherein the first control channel transmission set and the second control channel transmission set have the same set of physical resource block pairs, and the at least a first enhanced control channel element from the first set of enhanced control channel elements and a second enhanced control channel element in the second set of enhanced control channel elements have the same index and share at least one enhanced resource element group.

6. The method of claim 1, wherein the assigning the first plurality of enhanced resource element groups to the first set of enhanced control channel elements comprises:

assigning the first plurality of enhanced resource element groups to each enhanced control channel element among the first set of enhanced control channel elements based on a number of enhanced control channel elements in the single physical resource block pair and an index associated with the enhanced control channel element to which the enhanced resource elements are being assigned.

7. The method of claim 1, wherein if a number of physical resource block pairs in the second control channel transmission set is greater than or equal to the number of enhanced resource element groups per enhanced control channel element within the second control channel transmission set, then each of the second plurality of enhanced control channel elements includes enhanced resource element groups from different physical resource block pairs.

8. The method of claim 1, wherein each of the second plurality of enhanced control channel elements includes enhanced resource element groups having the same index.

9. The method of claim 1, wherein each of the second plurality of enhanced control channel elements includes enhanced resource element groups having different indices.

10. The method of claim 1, wherein an index of the first enhanced control channel element or an index of the second enhanced control channel element is used to implicitly determine a resource for acknowledgement feedback.

11. The method of claim 1, wherein if a number of physical resource block pairs in the second control channel transmission set is less than the number of enhanced resource element groups per enhanced control channel element within the second control channel transmission set, then a portion of the enhanced resource element groups assigned to each of the second plurality of enhanced control channel elements have different indices and are from different physical resource block pairs.

12. A radio frequency equipment comprising:

a wireless resource allocation module configured to assign at least one of (i) a first plurality of enhanced resource element groups to a first set of enhanced control channel elements, and (ii) a second plurality of enhanced resource element groups to a second set of enhanced control channel elements; and

a transmitter configured to transmit control information to at least one other radio frequency equipment using at least one of the first and second sets of enhanced control channel elements;

wherein

the first plurality of enhanced resource element groups for each first enhanced control channel element have equally spaced indices within a single physical resource block pair for at least a first control channel transmission set, and

the second plurality of enhanced resource element groups for each second enhanced control channel element are from multiple physical resource block pairs for at least a second control channel transmission set.

13. The radio frequency equipment of claim 12, wherein the first control channel transmission set and the second control channel transmission set have one of a same and different set of physical resource block pairs.

14. The radio frequency equipment of claim 12, wherein the enhanced control channel elements in the first set of enhanced control channel elements are indexed sequentially in the physical resource block pairs within the first control channel transmission set.

15. The radio frequency equipment of claim 12, wherein the enhanced control channel elements in the second set of enhanced control channel elements are indexed uniquely within the second control channel transmission set.

16. The radio frequency equipment of claim 15, wherein the first control channel transmission set and the second control channel transmission set have the same set of physical resource block pairs, and the at least a first enhanced control channel element from the first set of enhanced control channel elements and a second enhanced control channel element in the second set of enhanced control channel elements have the same index and share at least one enhanced resource element group.

17. The radio frequency equipment of claim 12, wherein the wireless resource allocation module is further configured to assign the first plurality of enhanced resource element groups to each enhanced control channel element among the first set of enhanced control channel elements based on a number of enhanced control channel elements in the single physical resource block pair and an index associated with the enhanced control channel element to which the enhanced resource elements are being assigned.

18. The radio frequency equipment of claim 12, wherein if a number of physical resource block pairs in the second control channel transmission set is greater than or equal to the number of enhanced resource element groups per enhanced control channel element within the second control channel transmission set, then each of the second plurality of enhanced control channel elements includes enhanced resource element groups from different physical resource block pairs.

19. The radio frequency equipment of claim 12, wherein each of the second plurality of enhanced control channel elements includes enhanced resource element groups having the same index.

20. The radio frequency equipment of claim 12, wherein each of the second plurality of enhanced control channel elements includes enhanced resource element groups having different indices.

21. The radio frequency equipment of claim 12, wherein if a number of physical resource block pairs in the second control channel transmission set is less than the number of enhanced resource element groups per enhanced control channel element within the second control channel transmission set, then a portion of the enhanced resource element groups assigned to each of the second plurality of enhanced control channel elements have different indices and are from different physical resource block pairs.