Wireless uplink resource allocation

• US 10,454,734 B2
• Filed: 04/12/2018
• Issued: 10/22/2019
• Est. Priority Date: 06/15/2015
• 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): Choudhry, Samina F
• Application Number:
  US15/951,499
• Publication Number:
  US 20180234279A1
• Time in Patent Office: 558 Days
• CPC Class Codes: H04L 27/2613 Structure of the reference signals
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 56/00 Synchronisation arrangements
• CPC Class Codes: H04W 56/0045 compensating for timing error by altering transmission time
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

A wireless device may receive configuration parameters of cells comprising a primary cell with no configured scheduling request (SR) resources and a secondary cell in an sTAG and with configured SR resources. An SR associated with an SR process may be transmitted in the SR resources. A random access procedure may be initiated in response to: the SR process pending in a subframe; no uplink data channel resource available for transmission in the subframe; and a time alignment timer of the sTAG not running in the subframe. A random access preamble may be transmitted by the wireless device.

Claims

1. A method comprising:

receiving, by a wireless device, configuration parameters of a plurality of cells comprising;

a primary cell that is not configured with scheduling request (SR) resources; and

a secondary cell that is configured with the SR resources and that is in a secondary timing advance group (sTAG);

transmitting, via the SR resources, an SR associated with an SR process;

initiating a random access procedure based on;

the SR process being pending in a subframe;

no uplink data channel resource being available for transmission in the subframe; and

a time alignment timer associated with the sTAG not running in the subframe; and

transmitting, by the wireless device, a random access preamble.

2. The method of claim 1, wherein the secondary cell is in an activated state in the subframe.

3. The method of claim 1, wherein an SR prohibit timer is not running.

4. The method of claim 1, further comprising canceling the SR process.

5. The method of claim 1, wherein the plurality of cells are grouped into a plurality of physical uplink control channel (PUCCH) groups comprising:

a primary PUCCH group comprising the primary cell, wherein the primary cell is configured for a transmission of a primary PUCCH signal to a base station; and

a secondary PUCCH group comprising the secondary cell, wherein the secondary cell is configured for a transmission of a secondary PUCCH signal to the base station.

6. The method of claim 1, wherein the plurality of cells are grouped into a plurality of timing advance groups (TAGs) comprising:

a primary TAG comprising the primary cell; and

the sTAG comprising the secondary cell.

7. The method of claim 1, further comprising receiving a random access response comprising an uplink grant.

8. The method of claim 1, wherein the configuration parameters comprise a time alignment timer parameter for the sTAG.

9. The method of claim 1, wherein the configuration parameters comprise:

first configuration parameters of a primary physical uplink control channel (PUCCH) for the primary cell; and

second configuration parameters of a secondary PUCCH for the secondary cell.

10. The method of claim 1, further comprising:

initiating the SR process based on the wireless device having one or more uplink packets for transmission.

11. 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 that is not configured with scheduling request (SR) resources; and

a secondary cell that is configured with the SR resources and that is in a secondary timing advance group (sTAG);

transmit, via the SR resources, an SR associated with an SR process;

initiate a random access procedure based on;

the SR process being pending in a subframe;

no uplink data channel resource being available for transmission in the subframe; and

a time alignment timer associated with the sTAG not running in the subframe; and

transmit a random access preamble.

12. The wireless device of claim 11, wherein the secondary cell is in an activated state in the subframe.

13. The wireless device of claim 11, wherein an SR prohibit timer is not running.

14. The wireless device of claim 11, wherein the instructions, when executed by the one or more processors, further cause the wireless device to cancel the SR process.

15. The wireless device of claim 11, wherein the plurality of cells are grouped into a plurality of physical uplink control channel (PUCCH) groups comprising:

a primary PUCCH group comprising the primary cell, wherein the primary cell is configured for a transmission of a primary PUCCH signal to a base station; and

a secondary PUCCH group comprising the secondary cell, wherein the secondary cell is configured for a transmission of a secondary PUCCH signal to the base station.

16. The wireless device of claim 11, wherein the plurality of cells are grouped into a plurality of timing advance groups (TAGs) comprising:

a primary TAG comprising the primary cell; and

the sTAG comprising the secondary cell.

17. The wireless device of claim 11, wherein the instructions, when executed by the one or more processors, further cause the wireless device to receive a random access response comprising an uplink grant.

18. The wireless device of claim 11, wherein the configuration parameters comprises a time alignment timer parameter for the sTAG.

19. The wireless device of claim 11, wherein the configuration parameters comprise:

first configuration parameters of a primary physical uplink control channel (PUCCH) for the primary cell; and

second configuration parameters of a secondary PUCCH for the secondary cell.

20. The wireless device of claim 11, wherein the instructions, when executed by the one or more processors, further cause the wireless device to initiate the SR process based on the wireless device having one or more uplink packets for transmission.

21. A system comprising:

a base station comprising;

one or more processors; and

memory storing instructions that, when executed by the one or more processors of the base station, cause the base station to;

transmit at least one message comprising configuration parameters of a plurality of cells comprising;

a primary cell that is not configured with scheduling request (SR) resources; and

a secondary cell that is configured with the SR resources and that is in a secondary timing advance group (sTAG); and

a wireless device comprising;

one or more processors; and

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

transmit, via the SR resources, an SR associated with an SR process;

initiate a random access procedure based on;

the SR process being pending in a subframe;

no uplink data channel resource being available for transmission in the subframe; and

a time alignment timer associated with the sTAG not running in the subframe; and

transmit a random access preamble.

22. The system of claim 21, wherein the instructions, when executed by the one or more processors of the wireless device, further cause the wireless device to cancel the SR process.

23. The system of claim 21, wherein the plurality of cells are grouped into a plurality of physical uplink control channel (PUCCH) groups comprising:

a primary PUCCH group comprising the primary cell, wherein the primary cell is configured for a transmission of a primary PUCCH signal to the base station; and

a secondary PUCCH group comprising the secondary cell, wherein the secondary cell is configured for a transmission of a secondary PUCCH signal to the base station.

24. The system of claim 21, wherein the plurality of cells are grouped into a plurality of timing advance groups (TAGs) comprising:

a primary TAG comprising the primary cell; and

the sTAG comprising the secondary cell.

25. The system of claim 21, wherein the instructions, when executed by the one or more processors of the base station, further cause the base station to transmit a random access response comprising an uplink grant.

26. The system of claim 21, wherein the instructions, when executed by the one or more processors of the wireless device, further cause the wireless device to initiate the SR process based on the wireless device having one or more uplink packets for transmission.

27. A non-transitory computer readable medium storing instructions that, when executed, configure a wireless device to:

receive at least one message comprising configuration parameters of a plurality of cells comprising;

a primary cell that is not configured with scheduling request (SR) resources; and

a secondary cell that is configured with the SR resources and that is in a secondary timing advance group (sTAG);

transmit, via the SR resources, an SR associated with an SR process;

initiate a random access procedure based on;

the SR process being pending in a subframe;

no uplink data channel resource being available for transmission in the subframe; and

a time alignment timer associated with the sTAG not running in the subframe;

and transmit a random access preamble.

28. The computer-readable medium of claim 27, wherein the instructions, when executed, further configure the wireless device to cancel the SR process.

29. The computer-readable medium of claim 27, wherein the plurality of cells are grouped into a plurality of physical uplink control channel (PUCCH) groups comprising:

a primary PUCCH group comprising the primary cell, wherein the primary cell is configured for a transmission of a primary PUCCH signal to a base station; and

a secondary PUCCH group comprising the secondary cell, wherein the secondary cell is configured for a transmission of a secondary PUCCH signal to the base station.

30. The computer-readable medium of claim 27, wherein the plurality of cells are grouped into a plurality of timing advance groups (TAGs) comprising:

a primary TAG comprising the primary cell; and

the sTAG comprising the secondary cell.

31. The non-transitory computer-readable medium of claim 27, wherein the instructions, when executed, further configure the wireless device to receive a random access response comprising an uplink grant.

32. The non-transitory computer-readable medium of claim 27, wherein the instructions, when executed, further configure the wireless device to initiate the SR process based on the wireless device having one or more uplink packets for transmission.