Wireless device scheduling request in a wireless network

• US 10,390,360 B2
• Filed: 11/10/2017
• Issued: 08/20/2019
• Est. Priority Date: 03/09/2015
• Status: Active Grant

• Current Assignee: Comcast Cable Communications LLC (Comcast Corporation)
• Original Assignee: Comcast Cable Communications LLC (Comcast Corporation)
• Inventors: Dinan, Esmael Hejazi
• Primary Examiner(s): Nooristany, Sulaiman
• Application Number:
  US15/809,619
• Publication Number:
  US 20180167966A1
• Time in Patent Office: 648 Days
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/1268 of uplink data flows
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/52 based on load

Abstract

A wireless device receives message(s) comprising configuration parameters of cells, a first IE for the primary PUCCH, a second IE indicating SR maximum number of transmissions, and an SR prohibit timer IE for an SR timer. The configuration parameters comprise: a primary cell with a PUCCH; and a PUCCH secondary cell with a secondary PUCCH. The first IE indicates the SR maximum number of transmissions. In response to an SR counter less than the SR maximum number of transmissions in a first SR subframe: the SR counter increments; a physical layer is instructed to signal an SR associated with an SR process on one valid PUCCH resource for the SR. The SR timer starts and is configured with an expiration duration value determined based on the SR prohibit timer IE regardless of which one of the primary PUCCH and the secondary PUCCH is employed for transmission of the SR.

Claims

1. A method comprising:

receiving, by a wireless device, at least one message comprising;

configuration parameters of a plurality of cells comprising;

a primary cell with a primary physical uplink control channel (PUCCH); and

a secondary cell with a secondary PUCCH;

a first indication, for the primary PUCCH, indicating a scheduling request (SR) maximum number of transmissions;

a second indication, for the secondary PUCCH, indicating the SR maximum number of transmissions; and

an SR prohibit timer indication for an SR timer; and

based on an SR counter being less than the SR maximum number of transmissions in a first SR subframe;

incrementing the SR counter;

instructing a physical layer to signal an SR associated with an SR process on a valid PUCCH resource for the SR; and

starting the SR timer with an expiration duration value based, at least, on the SR prohibit timer indication, regardless of which of the primary PUCCH and the secondary PUCCH is used for transmission of the SR.

2. The method of claim 1, further comprising

transmitting the SR via the primary PUCCH or the secondary PUCCH.

3. The method of claim 1, wherein SR resources are configured on at least one of the primary PUCCH or the secondary PUCCH.

4. The method of claim 1, wherein the plurality of cells are grouped into a plurality of PUCCH groups comprising:

a primary PUCCH group comprising the primary cell; and

a secondary PUCCH group comprising the secondary cell.

5. The method of claim 1, wherein:

first SR resources are configured on the primary cell; and

second SR resources are configured on the secondary cell.

6. The method of claim 1, wherein the first SR subframe is a subframe in which:

the SR process is pending;

no uplink shared channel resource is available for transmission;

a media access control (MAC) entity has at least one valid PUCCH resource for the SR;

the subframe is not a part of a measurement gap; and

the SR timer is not running.

20. The method of claim 1, wherein the at least one message comprises a scheduling request configuration index used to determine whether the first SR subframe has valid resources to signal the SR.

22. The method of claim 1, wherein the secondary cell is a secondary cell.

7. A wireless device comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, cause the wireless device to;

receive at least one message comprising;

configuration parameters of a plurality of cells comprising;

a primary cell with a primary physical uplink control channel (PUCCH); and

a secondary cell with a secondary PUCCH;

a first indication, for the primary PUCCH, indicating a scheduling request (SR), maximum number of transmissions;

a second indication, for the secondary PUCCH, indicating the SR maximum number of transmissions; and

an SR prohibit timer indication for an SR timer; and

based on an SR counter being less than the SR maximum number of transmissions in a first SR subframe;

increment the SR counter;

instruct a physical layer to signal an SR associated with an SR process on a valid PUCCH resource for the SR; and

start the SR timer with an expiration duration value based, at least, on the SR prohibit timer indication, regardless of which of the primary PUCCH and the secondary PUCCH is used for transmission of the SR.

8. The wireless device of claim 7, wherein the instructions, when executed by the one or more processors, cause the wireless device to transmit the SR via the primary PUCCH or the secondary PUCCH.

9. The wireless device of claim 7, wherein SR resources are configured on at least one of the primary PUCCH or the secondary PUCCH.

10. The wireless device of claim 7, wherein the plurality of cells are grouped into a plurality of PUCCH groups comprising:

a primary PUCCH group comprising the primary cell; and

a secondary PUCCH group comprising the secondary cell.

11. The wireless device of claim 7, wherein:

first SR resources are configured on the primary cell; and

second SR resources are configured on the secondary cell.

12. The wireless device of claim 7, wherein the first SR subframe is a subframe in which:

the SR process is pending;

no uplink shared channel resource is available for transmission;

a media access control (MAC) entity has at least one valid PUCCH resource for the SR;

the subframe is not a part of a measurement gap; and

the SR timer is not running.

21. The wireless device of claim 7, wherein the at least one message comprises a scheduling request configuration index used to determine whether the first SR subframe has valid resources to signal the SR.

23. The wireless device of claim 7, wherein the secondary cell is a secondary cell.

13. A wireless device comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, cause the wireless device to;

receive at least one message comprising;

configuration parameters of a plurality of cells comprising;

a primary cell with a primary physical uplink control channel (PUCCH); and

a secondary cell with a secondary PUCCH;

a first indication, for the primary PUCCH, indicating a scheduling request (SR) maximum number of transmissions;

a second indication, for the secondary PUCCH, indicating the SR maximum number of transmissions; and

an SR prohibit timer indication for an SR timer;

increment an SR counter;

instruct a physical layer to signal an SR associated with an SR process on a valid PUCCH resource for the SR;

start the SR timer with an expiration duration value based, at least, on the SR prohibit timer indication, regardless of which of the primary PUCCH and the secondary PUCCH is used for transmission of the SR; and

cancel the SR process based on the SR maximum number of transmissions being reached in a first SR subframe.

14. The wireless device of claim 13, wherein the instructions, when executed by the one or more processors, cause the wireless device to transmit the SR via the primary PUCCH or the secondary PUCCH.

15. The wireless device of claim 13, wherein SR resources are configured on at least one of the primary PUCCH or the secondary PUCCH.

16. The wireless device of claim 13, wherein the plurality of cells are grouped into a plurality of PUCCH groups comprising:

a primary PUCCH group comprising the primary cell; and

a secondary PUCCH group comprising the secondary cell.

17. The wireless device of claim 13, wherein:

first SR resources are configured on the primary cell; and

second SR resources are configured on the secondary cell.

18. The wireless device of claim 13, wherein the first SR subframe is a subframe in which:

the SR process is pending;

no uplink shared channel resource is available for transmission;

a media access control (MAC) entity has at least one valid PUCCH resource for the SR;

the subframe is not a part of a measurement gap; and

the SR timer is not running.

19. The wireless device of claim 13, wherein the instructions, when executed by the one or more processors, cause the wireless device to select, via a media access control (MAC) entity, the valid PUCCH resource by using at least one of the following rules:

the MAC entity prioritizes the primary PUCCH to signal the SR;

the MAC entity uses PUCCH resource load information;

the MAC entity alternates between the primary PUCCH and the secondary PUCCH to signal the SR; and

the MAC entity uses a random or pseudo random process.

24. The wireless device of claim 13, wherein the secondary cell is a secondary cell.

25. A method comprising:

receiving at least one message comprising;

configuration parameters of a plurality of cells comprising;

a primary cell with a primary physical uplink control channel (PUCCH); and

a secondary cell with a secondary PUCCH;

a first indication, for the primary PUCCH, indicating a scheduling request (SR) maximum number of transmissions;

a second indication, for the secondary PUCCH, indicating the SR maximum number of transmissions; and

an SR prohibit timer indication for an SR timer;

incrementing an SR counter;

instructing a physical layer to signal an SR associated with an SR process on a valid PUCCH resource for the SR;

starting the SR timer with an expiration duration value based, at least, on the SR prohibit timer indication, regardless of which of the primary PUCCH and the secondary PUCCH is used for transmission of the SR; and

canceling the SR process based on the SR maximum number of transmissions being reached in a first SR subframe.

26. The method of claim 25, further comprising transmitting the SR via the primary PUCCH or the secondary PUCCH.

27. The method of claim 25, wherein SR resources are configured on at least one of the primary PUCCH or the secondary PUCCH.

28. The method of claim 25, wherein the plurality of cells are grouped into a plurality of PUCCH groups comprising:

a primary PUCCH group comprising the primary cell; and

a secondary PUCCH group comprising the secondary cell.

29. The method of claim 25, wherein:

first SR resources are configured on the primary cell; and

second SR resources are configured on the secondary cell.

30. The method of claim 25, wherein the first SR subframe is a subframe in which:

the SR process is pending;

no uplink shared channel resource is available for transmission;

a media access control (MAC) entity has at least one valid PUCCH resource for the SR;

the subframe is not a part of a measurement gap; and

the SR timer is not running.

31. The method of claim 25, further comprising selecting, via a media access control (MAC) entity, the valid PUCCH resource by using at least one of the following rules:

the MAC entity prioritizes the primary PUCCH to signal the SR;

the MAC entity uses PUCCH resource load information;

the MAC entity alternates between the primary PUCCH and the secondary PUCCH to signal the SR; and

the MAC entity uses a random or pseudo random process.

32. The method of claim 25, wherein the secondary cell is a secondary cell.

33. A system comprising:

a wireless device and a base station,

wherein the wireless device is configured to;

receive, from the base station, at least one message comprising;

configuration parameters of a plurality of cells comprising;

a primary cell with a primary physical uplink control channel (PUCCH); and

a secondary cell with a secondary PUCCH;

a first indication, for the primary PUCCH, indicating a scheduling request (SR) maximum number of transmissions;

a second indication, for the secondary PUCCH, indicating the SR maximum number of transmissions; and

an SR prohibit timer indication for an SR timer;

increment an SR counter;

instruct a physical layer to signal an SR associated with an SR process on a valid PUCCH resource for the SR;

start the SR timer with an expiration duration value based, at least, on the SR prohibit timer indication, regardless of which of the primary PUCCH and the secondary PUCCH is used for transmission of the SR; and

cancel the SR process based on the SR maximum number of transmissions being reached in a first SR subframe; and

wherein the base station is configured to send the at least one message to the wireless device.

34. The system of claim 33, wherein the wireless device is configured to transmit the SR via the primary PUCCH or the secondary PUCCH.

35. The system of claim 33, wherein SR resources are configured on at least one of the primary PUCCH or the secondary PUCCH.

36. The system of claim 33, wherein the plurality of cells are grouped into a plurality of PUCCH groups comprising:

a primary PUCCH group comprising the primary cell; and

a secondary PUCCH group comprising the secondary cell.

37. The system of claim 33, wherein:

first SR resources are configured on the primary cell; and

second SR resources are configured on the secondary cell.

38. The system of claim 33, wherein the first SR subframe is a subframe in which:

the SR process is pending;

no uplink shared channel resource is available for transmission;

a media access control (MAC) entity has at least one valid PUCCH resource for the SR;

the subframe is not a part of a measurement gap; and

the SR timer is not running.

39. The system of claim 33, wherein the wireless device is configured to select, via a media access control (MAC) entity, the valid PUCCH resource by employing at least one of the following rules:

the MAC entity prioritizes the primary PUCCH to signal the SR;

the MAC entity uses PUCCH resource load information;

the MAC entity alternates between the primary PUCCH and the secondary PUCCH to signal the SR; and

the MAC entity uses a random or pseudo random process.

40. The system of claim 33, wherein the secondary cell is a secondary cell.

41. A system comprising:

a wireless device and a base station,

wherein the wireless device is configured to;

receive, from the base station, at least one message comprising;

configuration parameters of a plurality of cells comprising;

a primary cell with a primary physical uplink control channel (PUCCH); and

a secondary cell with a secondary PUCCH;

a first indication, for the primary PUCCH, indicating a scheduling request (SR) maximum number of transmissions;

a second indication, for the secondary PUCCH, indicating the SR maximum number of transmissions; and

an SR prohibit timer indication for an SR timer; and

based on an SR counter being less than the SR maximum number of transmissions in a first SR subframe;

increment the SR counter;

instruct a physical layer to signal an SR associated with an SR process on a valid PUCCH resource for the SR; and

start the SR timer with an expiration duration value based, at least, on the SR prohibit timer indication, regardless of which one of the primary PUCCH and the secondary PUCCH is used for transmission of the SR; and

wherein the base station is configured to send the at least one message to the wireless device.

42. The system of claim 41, wherein the wireless device is configured to transmit the SR via the primary PUCCH or the secondary PUCCH.

43. The system of claim 41, wherein SR resources are configured on at least one of the primary PUCCH or the secondary PUCCH.

44. The system of claim 41, wherein the plurality of cells are grouped into a plurality of PUCCH groups comprising:

a primary PUCCH group comprising the primary cell; and

a secondary PUCCH group comprising the secondary cell.

45. The system of claim 41, wherein:

first SR resources are configured on the primary cell; and

second SR resources are configured on the secondary cell.

46. The system of claim 41, wherein the first SR subframe is a subframe in which:

the SR process is pending;

no uplink shared channel resource is available for transmission;

a media access control (MAC) entity has at least one valid PUCCH resource for the SR;

the subframe is not a part of a measurement gap; and

the SR timer is not running.

47. The system of claim 41, wherein the at least one message comprises a scheduling request configuration index used to determine whether the first SR subframe has valid resources to signal the SR.

48. The system of claim 41, wherein the secondary cell is a secondary cell.