Method implemented in an eNodeB base station

• US 8,964,679 B2
• Filed: 12/19/2012
• Issued: 02/24/2015
• Est. Priority Date: 12/23/2011
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Anderson, Nicholas William, Harrison, Robert Mark, Novak, Robert, Vutukuri, Eswar
• Primary Examiner(s): KHAJURIA, SHRIPAL K
• Application Number:
  US13/719,608
• Publication Number:
  US 20130163533A1
• Time in Patent Office: 797 Days
• Field of Search: 370/329
• US Class Current: 370/329
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• 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
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

In some implementations, a method implemented in an eNodeB base station (eNB) for a single carrier frequency division multiple access SC-FDMA within a wireless system includes receiving information within an SC-FDMA uplink shared channel signal on a recurring scheduling request resource. The received information comprises a user ID. A message granting at least a portion of an SC-FDMA resource is transmitted to a UE associated with the user ID.

Claims

1. A method implemented in an eNodeB base station (eNB) for a single carrier frequency division multiple access SC-FDMA within a wireless system comprising:

assigning a recurring scheduling request resource to a plurality of User Equipments (UEs);

receiving information within an SC-FDMA uplink shared channel signal on the recurring scheduling request resource, the received information comprising a user ID; and

transmitting a message granting at least a portion of an SC-FDMA resource to a UE associated with the user ID.

2. A method according to claim 1 wherein the message assigning a portion of an SC-FDMA resource to a wireless transmission unit comprises a Cell Radio Temporary identifier (C-RNTI).

3. A method according to claim 1 wherein receiving the information in the SC-FDMA signal comprises a descrambling operation based on a non-user specific bit scrambling sequence.

4. A method according to claim 3 wherein the non-user-specific bit scrambling sequence is associated with the assigned scheduling request resource.

5. A method according to claim 3 further comprising transmitting information relating to the non-user specific bit scrambling sequence to the UE.

6. A method according to claim 1 wherein the information further comprises a medium access control MAC element comprising the user ID.

7. A method according to claim 1 wherein the information further comprises a buffer status report BSR.

8. A method according to claim 1 wherein the information further comprises radio channel status information.

9. A method according to claim 7 or 8 further comprising determining at least one attribute of the granted portion of the SC-FDMA resource based upon the received buffer status report or the received radio channel status information.

10. A method according to claim 8 wherein the radio channel status information comprises one or more of

a Channel Quality Information (CQI) report;

a Precoding Matrix Indication (PMI) report;

a Rank Indication (RI) report;

a Channel Status Information (CSI) report;

or

a Power Headroom Report (PHR).

11. A method according to claim 10 wherein the at least one attribute includes

an amount or bandwidth of the resource;

a modulation or coding scheme of the resource;

or

a transmit power to be used by the UE when transmitting on the resource.

12. A method according to claim 1 wherein receiving the information in the SC-FDMA signal comprises a channel estimation operation using a cyclic shift of a reference signal.

13. A method according to claim 12 further comprising determining a used cyclic shift of a received reference signal wherein said cyclic shift has been selected by a UE.

14. A method according to claim 1 wherein the assigned recurring scheduling request resource is within a Physical Uplink Control Channel PUCCH frequency region of an uplink system bandwidth of the wireless system.

15. A method according to claim 1 wherein the assigned recurring scheduling request resource is within a Physical Uplink Shared Channel PUSCH frequency region of an uplink system bandwidth of the wireless system.

16. A method according to claim 1 wherein assigning the recurring scheduling request resource comprises transmitting a broadcast transmission or a common signalling message.

17. A method according to claim 1 wherein assigning the recurring scheduling request resource comprises transmitting a dedicated transmission to the UE.

18. A method according to claim 1 wherein the information includes user-plane information.

19. A method according to claim 1 further comprising transmitting an indication related to an allowance or disallowance for the at least one UE to include user plane data within the information.

20. A method according to claim 1 further comprising transmitting ACK/NACK information on a Physical Hybrid Automatic Repeat Request Indicator Channel PHICH in response to detecting a transmission on the scheduling request resource.

21. A method according to claim 20 further comprising upon transmitting an ACK signal on the PHICH channel, transmitting an uplink grant signal via a PDCCH channel addressed to the user ID to confirm grant of the requested uplink resources.

22. A method according to claim 1 wherein assigning the recurring scheduling request resource comprises transmitting an assignment of a plurality of recurring scheduling request resources.

23. A method according to claim 1 wherein the assignment of the scheduling request resource is by semi persistent scheduling SPS, the assignment comprising

transmitting an RRC signalling message assigning a time domain recurrence of the resource;

transmitting a Physical Downlink Control Channel PDCCH message to assign one or more other attributes of the scheduling request resource or to deactivate or activate an assignment of the scheduling request resource.

24. A method according to claim 1 wherein SC-FDMA is used by the eNB for receiving uplink communication signals.

25. A method according to claim 1, wherein a modulation scheme other than SC-FDMA is used by the eNB for sending downlink communication signals.

26. An eNodeB base station for single carrier frequency division multiple access SC-FDMA within a wireless system, comprising:

one or more processors configured to;

assign a recurring scheduling request resource to a plurality of User Equipments (UEs);

receive information within an SC-FDMA uplink shared channel signal on the recurring scheduling request resource, the received information comprising a user ID; and

transmit a message granting at least a portion of an SC-FDMA resource to a UE associated with the user ID.

27. The eNodeB base station of claim 26, wherein the message assigning a portion of an SC-FDMA resource to a wireless transmission unit comprises a Cell Radio Temporary identifier (C-RNTI).

28. The eNodeB base station of claim 26, wherein the one or more processors configured to receive the information in the SC-FDMA signal comprises a descrambling operation based on a non-user specific bit scrambling sequence.

29. The eNodeB base station of claim 28, wherein the non-user-specific bit scrambling sequence is associated with the assigned scheduling request resource.

30. The eNodeB base station of claim 28, the one or more processors further configured to transmit information relating to the non-user specific bit scrambling sequence to the UE.

31. The eNodeB base station of claim 26, wherein the information further comprises a medium access control MAC element comprising the user ID.

32. The eNodeB base station of claim 26, wherein the information further comprises a buffer status report BSR.

33. The eNodeB base station of claim 26, wherein the information further comprises radio channel status information.

34. The eNodeB base station of claim 33, wherein the radio channel status information comprises one or more of a Channel Quality Information (CQI) report;

a Precoding Matrix Indication (PMI) report;

a Rank Indication (RI) report;

a Channel Status Information (CSI) report;

or a Power Headroom Report (PHR).

35. The eNodeB base station of claim 26 or 33 further comprising determining at least one attribute of the granted portion of the SC-FDMA resource based upon the received buffer status report or the received radio channel status information.

36. The eNodeB base station of claim 34, wherein the at least one attribute includes an amount or bandwidth of the resource;

a modulation or coding scheme of the resource;

or a transmit power to be used by the UE when transmitting on the resource.

37. The eNodeB base station of claim 26, wherein the one or more processors configured to receive the information in the SC-FDMA signal comprises a channel estimation operation using a cyclic shift of a reference signal.

38. The eNodeB base station of claim 37, the one or more processors further configured determine a used cyclic shift of a received reference signal wherein said cyclic shift has been selected by a UE.

39. The eNodeB base station of claim 26, wherein the assigned recurring scheduling request resource is within a Physical Uplink Control Channel PUCCH frequency region of an uplink system bandwidth of the wireless system.

40. The eNodeB base station of claim 26, wherein the assigned recurring scheduling request resource is within a Physical Uplink Shared Channel PUSCH frequency region of an uplink system bandwidth of the wireless system.

41. The eNodeB base station of claim 26, wherein the one or more processors configured to assign the recurring scheduling request resource comprises the one or more processors configured to transmit a broadcast transmission or a common signalling message.

42. The eNodeB base station of claim 26, wherein the one or more processors configured to assign the recurring scheduling request resource comprises the one or more processors configured to transmit a dedicated transmission to the UE.

43. The eNodeB base station of claim 26, wherein the information includes user-plane information.

44. The eNodeB base station of claim 26, the one or more processors further configured to transmit an indication related to an allowance or disallowance for the at least one UE to include user plane data within the information.

45. The eNodeB base station of claim 26, the one or more processors further configured to transmit ACK/NACK information on a Physical Hybrid Automatic Repeat Request Indicator Channel PHICH in response to detecting a transmission on the scheduling request resource.

46. The eNodeB base station of claim 45, further comprising upon transmitting an ACK signal on the PHICH channel, the one or more processors further configured to transmit an uplink grant signal via a PDCCH channel addressed to the user ID to confirm grant of the requested uplink resources.

47. The eNodeB base station of claim 26, wherein the one or more further configured to assigning the recurring scheduling request resource comprises the one or more processors configured to transmit an assignment of a plurality of recurring scheduling request resources.

48. The eNodeB base station of claim 26, wherein the assignment of the scheduling request resource is by semi persistent scheduling SPS, the assignment comprising transmitting an RRC signalling message assigning a time domain recurrence of the resource;

or transmitting a Physical Downlink Control Channel PDCCH message to assign one or more other attributes of the scheduling request resource or to deactivate or activate an assignment of the scheduling request resource.

49. The eNodeB base station of claim 26, wherein SC-FDMA is used by the eNB for receiving uplink communication signals.

50. The eNodeB base station of claim 26, wherein a modulation scheme other than SC-FDMA is used by the eNB for sending downlink communication signals.

51. A wireless system comprising:

an eNodeB base station including one or more processors configured to;

assign a recurring scheduling request resource to a plurality of User Equipments (UEs);

receive information within an SC-FDMA uplink shared channel signal on the recurring scheduling request resource, the received information comprising a user ID; and

transmit a message granting at least a portion of an SC-FDMA resource to a UE associated with the user ID.

52. A non-transitory computer readable medium storing instructions to cause a processor to perform operations comprising:

assigning a recurring scheduling request resource to a plurality of User Equipments (UEs);

receiving information within an SC-FDMA uplink shared channel signal on a the recurring scheduling request resource, the received information comprising a user ID; and

transmitting a message granting at least a portion of an SC-FDMA resource to a UE associated with the user ID.

53. The computer readable medium of claim 52, wherein the assigned recurring scheduling request resource is within a Physical Uplink Control Channel PUCCH frequency region of an uplink system bandwidth of the wireless system.

54. The computer readable medium of claim 52, wherein the assigned recurring scheduling request resource is within a Physical Uplink Shared Channel PUSCH frequency region of an uplink system bandwidth of the wireless system.

55. The computer readable medium of claim 52, wherein assigning the recurring scheduling request resource comprises transmitting a broadcast transmission or a common signalling message.

56. A method implemented in an eNodeB base station for a wireless telecommunications system comprising:

assigning a recurring scheduling request resource comprising a plurality of subcarriers to a UE;

receiving information within a shared channel signal on the plurality of subcarriers of the assigned resource;

despreading the uplink shared channel signal to form a first plurality of modulation symbol estimates;

using the modulation symbol estimates to determine a user ID from the received information; and

transmitting a message granting at least a portion of a shared resource to a UE associated with the determined user ID.