METHODS AND APPARATUSES FOR AN EXTENDED BANDWIDTH CARRIER

• US 20140098785A1
• Filed: 07/04/2011
• Published: 04/10/2014
• Est. Priority Date: 07/04/2011
• Status: Abandoned Application

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Frenne, Mattias, Baldemair, Robert, Cheng, Jung-Fu, Gerstenberger, Dirk, Koorapaty, Havish, Larsson, Daniel
• Application Number:
  US14/124,938
• Publication Number:
  US 20140098785A1
• Time in Patent Office: Days
• US Class Current: 370/330
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems

Abstract

Apparatuses and methods allow for uplink selection using an extended bandwidth carrier. A user equipment (UE) comprises: a transceiver configured to receive control signaling on an extended bandwidth carrier, the extended bandwidth carrier having a first control region disposed within a legacy bandwidth, and a second control region including additional resource blocks disposed outside of the legacy bandwidth, wherein the transceiver can receive the control signaling in either or both of the first control region and the second control region.

Claims

1. A user equipment (UE) (104) characterized in that:

a transceiver (120) configured to receive control signaling on an extended bandwidth carrier (18), the extended bandwidth carrier (18) having a legacy bandwidth (22) and additional resource blocks (28) disposed outside of the legacy bandwidth (22) and the extended bandwidth carrier (18) having;

a first control region (50) disposed within the legacy bandwidth; and

a second control region (48) disposed either within the legacy bandwidth or within the additional resource blocks,

wherein the transceiver (120) can receive the control signaling in either or both of the first control region (50) and the second control region (48).

2. The UE of claim 1, wherein two legacy bandwidths are used with each legacy bandwidth having adjacent, additional resource blocks.

3. The UE of claims 1-2, wherein physical resource block (PRB) pairs are numbered in the legacy bandwidth and a common numbering scheme continues through both the legacy bandwidth and the additional resource blocks in either a frequency increasing or a frequency decreasing direction.

4. The UE of claims 1-3, wherein the second control region is disposed inside the legacy bandwidth, wherein the second control region is not disposed within a legacy control region.

5. The UE of claims 1-3, wherein the second control region is disposed within the additional resource blocks.

6. The UE of claims 1-5, further comprising:

a communications interface configured to receive control signaling describing a manner in which the extended bandwidth carrier is configured.

7. The UE of claims 1-6, wherein the control signaling is received by the UE on one of a common control channel or a dedicated control channel.

8. The UE of claims 1-7, wherein the received control signaling includes a message which includes an integer triple with a first integer indicating the number of physical resource block (PRB) pairs for the legacy bandwidth, a second integer indicating the number of additional PRBs with frequencies above the legacy bandwidth frequency and a third integer indicating the number of additional PRBs with frequencies below the legacy bandwidth frequency.

9. The UE of claims 1-9, wherein the legacy bandwidth includes a bandwidth of at least one of 6, 15, 25, 50, 75 and 100 resource blocks in size, wherein a resource block corresponds to one slot in a time domain and twelve contiguous subcarriers in a frequency domain.

10. A method for a user equipment (UE) (104) to use an extended bandwidth carrier, characterized in that:

receiving, at a transceiver, control signaling on the extended bandwidth carrier, the extended bandwidth carrier having a legacy bandwidth and additional resource blocks disposed outside of the legacy bandwidth and the extended bandwidth carrier having (106);

a first control region disposed within the legacy bandwidth; and

a second control region disposed either within the legacy bandwidth or within the additional resource blocks (110),

wherein the transceiver can receive the control signaling in either or both of the first control region and the second control region.

11. The method of claim 10, further comprising:

using two legacy bandwidths with each legacy bandwidth having adjacent, additional resource blocks.

12. The method of claims 10-11, wherein physical resource block (PRB) pairs are numbered in the bandwidth and a common numbering scheme continues through both the legacy bandwidth and the additional resource blocks in either a frequency increasing or a frequency decreasing direction.

13. The method of claims 10-12, further comprising:

disposing the second control region inside the legacy bandwidth, wherein the second control region is not disposed within a legacy control region.

14. The method of claims 10-12, further comprising:

disposing the second control region within the additional resource blocks.

15. The method of claims 10-14, further comprising:

receiving, by a communications interface, control signaling describing how the extended bandwidth carrier is configured.

16. The method of claims 10-15, wherein the control signaling is received by the UE on one of a common control channel or a dedicated control channel.

17. The method of claims 10-16, wherein the received control signaling includes a message which includes an integer triple with a first integer indicating the number of physical resource block (PRB) pairs for the legacy bandwidth, a second integer indicating the number of additional PRBs with frequencies above the legacy bandwidth frequency and a third integer indicating the number of additional PRBs with frequencies below the legacy bandwidth frequency

18. The method of claims 10-17, wherein the legacy bandwidth includes a bandwidth of at least one of 6, 15, 25, 50, 75 and 100 resource blocks in size, wherein a resource block corresponds to one slot in a time domain and twelve contiguous subcarriers in a frequency domain.

19. A base station (100) comprising:

a processor (122) configured to determine a size of an extended bandwidth carrier (18) for a user equipment (UE) (104), wherein the extended bandwidth carrier (18) has a legacy bandwidth (22) and additional resource blocks (28) disposed outside of the legacy bandwidth (22), further wherein the extended bandwidth carrier (18) has;

a first control region (50) disposed within the legacy bandwidth;

a second control region (48) disposed either within the legacy bandwidth or within the additional resource blocks; and

a communications interface (130) configured to transmit control signaling toward the UE (104) using at least one of a first and second control regions.

20. The base station of claim 19, wherein the control signaling describes a manner in which the extended bandwidth carrier is configured.

21. The base station of claims 19-20, wherein the second control region is disposed inside the legacy bandwidth.

22. The base station of claims 19-20, wherein the second control region is disposed within the additional resource blocks.

23. The base station of claims 19-21, wherein the control signaling is transmitted on one of a common control channel or a dedicated control channel.

24. The base station of claims 19-23, wherein the transmitted control signaling includes a message which includes an integer triple with a first integer indicating the number of physical resource block (PRB) pairs for the legacy bandwidth, a second integer indicating the number of additional PRBs with frequencies above the legacy bandwidth frequency and a third integer indicating the number of additional PRBs with frequencies below the legacy bandwidth frequency.

25. The base station of claims 19-24, wherein the additional resource blocks are dynamically added to both sides of the legacy bandwidth.

26. The base station of claims 19-24, wherein the additional resource blocks are dynamically added on one side of the legacy bandwidth.

27. The base station of claims 19-26, wherein the base station is an eNodeB.

28. The base station of claims 19-27, wherein the legacy bandwidth includes a bandwidth of at least one of 6, 15, 25, 50, 75 and 100 resource blocks in size, wherein a resource block corresponds to one slot in a time domain and twelve contiguous subcarriers in a frequency domain.

29. A method for a base station (100) to use an extended bandwidth carrier, the method comprising:

determining, by a processor, a size of an extended bandwidth carrier for a user equipment (UE), wherein the extended bandwidth carrier has a legacy bandwidth and additional resource blocks disposed outside of the legacy bandwidth, further wherein the extended bandwidth carrier has;

a first control region disposed within the legacy bandwidth; and

a second control region disposed either within the legacy bandwidth or within the additional resource blocks; and

transmitting, by a communications interface, control signaling toward the UE using at least one of a first and second control regions.

30. The method of claim 29, wherein the control signaling describes a manner in which the extended bandwidth carrier is configured.

31. The method of claims 29-30, further comprising:

disposing the second control region inside the legacy bandwidth.

32. The method of claims 29-30, further comprising:

disposing the second control region within the additional resource blocks.

33. The method of claims 29-32, further comprising:

transmitting the control signaling on one of a common control channel or a dedicated control channel.

34. The method of claims 29-33, wherein the transmitted control signaling includes a message which includes an integer triple with a first integer indicating the number of physical resource block (PRB) pairs for the legacy bandwidth, a second integer indicating the number of additional PRBs with frequencies above the legacy bandwidth frequency and a third integer indicating the number of additional PRBs with frequencies below the legacy bandwidth frequency.

35. The method of claims 29-34, further comprising:

dynamically adding the additional resource blocks to both sides of the legacy bandwidth.

36. The method of claims 29-34, further comprising:

dynamically adding the additional resource blocks are on one side of the legacy bandwidth.

37. The method of claims 29-36, wherein the base station is an eNodeB.

38. The method of claims 39-37, wherein the legacy bandwidth includes a bandwidth of at least one of 6, 15, 25, 50, 75 and 100 resource blocks in size, wherein a resource block corresponds to one slot in a time domain and twelve contiguous subcarriers in a frequency domain.