Secondary cell in a wireless device and wireless network

• US 10,327,236 B2
• Filed: 01/05/2018
• Issued: 06/18/2019
• 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): Khajuria, Shripal K
• Application Number:
  US15/863,263
• Publication Number:
  US 20180132214A1
• Time in Patent Office: 529 Days
• Field of Search: 370329
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 5/00 Arrangements affording multiple use of the transmission path
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A base station transmits to a wireless device at least one message. The message comprises configuration parameters of a plurality of cells grouped into a plurality of physical uplink control channel (PUCCH) groups. The configuration parameters comprise a primary PUCCH group comprising a primary cell with a primary PUCCH. The configuration parameters further comprise a secondary PUCCH group. The secondary PUCCH group comprises a PUCCH secondary cell with a secondary PUCCH and a first secondary cell. The base station deactivates a state of the PUCCH secondary cell for the wireless device in response to a deactivation condition for the PUCCH secondary cell being met. The base station stops reception of channel state information for the first secondary cell. The base station stops reception of positive acknowledgement and negative acknowledgement via the PUCCH secondary cell from the wireless device.

Claims

1. A base station comprising:

one or more processors;

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

transmit, to a wireless device, at least one message comprising;

configuration parameters of a plurality of cells grouped into a plurality of physical uplink control channel (PUCCH) groups comprising;

a primary PUCCH group comprising a primary cell with a primary PUCCH; and

a secondary PUCCH group comprising;

 

a PUCCH secondary cell with a secondary PUCCH; and

 

a first secondary cell;

deactivate a state of the PUCCH secondary cell for the wireless device in response to a deactivation condition for the PUCCH secondary cell being met;

stop reception, from the wireless device, of channel state information for the first secondary cell in response to deactivation of the PUCCH secondary cell; and

stop reception of positive acknowledgement and negative acknowledgement via the PUCCH secondary cell from the wireless device in response to deactivation of the PUCCH secondary cell.

2. The base station of claim 1, wherein the instructions, when executed, further cause the base station to stop transmitting downlink shared channel transport blocks to the wireless device via the first secondary cell.

3. The base station of claim 1, wherein the instructions, when executed, further cause the base station to:

continue transmitting, to the wireless device, uplink grants comprising uplink radio resource parameters for transmission of an uplink transport block via the first secondary cell; and

receive the uplink transport block via the first secondary cell.

4. The base station of claim 1, wherein the instructions, when executed, further cause the base station to continue receiving, from the wireless device, sounding reference signals via the first secondary cell.

5. The base station of claim 1, wherein the instructions, when executed, further cause the base station to transmit a media access control (MAC) deactivation command, from the base station, indicating deactivation of the PUCCH secondary cell.

6. The base station of claim 1, wherein the at least one message further comprises a deactivation timer value of a deactivation timer of one or more secondary cells, wherein a deactivation timer for the PUCCH secondary cell is disabled.

7. The base station of claim 1, wherein the instructions, when executed, further cause the base station to maintain configuration of PUCCH resources of the PUCCH secondary cell after the PUCCH secondary cell is deactivated.

8. A method comprising:

receiving, by a wireless device from a base station, at least one message comprising configuration parameters of a plurality of cells grouped into a plurality of physical uplink control channel (PUCCH) groups comprising;

a primary PUCCH group comprising a primary cell with a primary PUCCH; and

a secondary PUCCH group comprising;

a PUCCH secondary cell with a secondary PUCCH; and

a first secondary cell;

deactivating the PUCCH secondary cell in response to a deactivation condition for the PUCCH secondary cell being met;

stopping transmission of channel state information for the first secondary cell in response to deactivation of the PUCCH secondary cell; and

stopping transmission of positive acknowledgement and negative acknowledgement via the PUCCH secondary cell in response to deactivation of the PUCCH secondary cell.

9. The method of claim 8, further comprising stopping receiving downlink shared channel transport blocks via the first secondary cell.

10. The method of claim 8, further comprising:

continuing receiving uplink grants comprising uplink radio resource parameters for transmission of an uplink transport block via the first secondary cell; and

transmitting the uplink transport block via the first secondary cell.

11. The method of claim 8, further comprising continuing transmission of sounding reference signals via the first secondary cell.

12. The method of claim 8, further comprising flushing downlink hybrid automatic repeat request (HARQ) buffers or downlink HARQ processes for the first secondary cell after deactivation of the PUCCH secondary cell.

13. The method of claim 8, wherein the at least one message further comprises a deactivation timer value of a deactivation timer of one or more secondary cells, wherein a deactivation timer for the PUCCH secondary cell is disabled.

14. The method of claim 8, further comprising maintaining configuration of PUCCH resources of the PUCCH secondary cell when the PUCCH secondary cell is deactivated.

15. 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, from a base station, at least one message comprising

configuration parameters of a plurality of cells grouped into a plurality of physical uplink control channel (PUCCH) groups comprising;

a primary PUCCH group comprising a primary cell with a primary PUCCH; and

a secondary PUCCH group comprising;

 

a PUCCH secondary cell with a secondary PUCCH; and

 

a first secondary cell;

deactivate the PUCCH secondary cell in response to a deactivation condition for the PUCCH secondary cell being met;

stop transmission of channel state information for the first secondary cell in response to deactivation of the PUCCH secondary cell; and

stop transmission of positive acknowledgement and negative acknowledgement via the PUCCH secondary cell in response to deactivation of the PUCCH secondary cell.

16. The wireless device of claim 15, wherein the instructions, when executed, further cause the wireless device to stop receiving downlink shared channel transport blocks via the first secondary cell.

17. The wireless device of claim 15, wherein the instructions, when executed, further cause the wireless device to:

continue receiving uplink grants comprising uplink radio resource parameters for transmission of an uplink transport block via the first secondary cell; and

transmit the uplink transport block via the first secondary cell.

18. The wireless device of claim 15, wherein the instructions, when executed, further cause the wireless device to continue transmission of sounding reference signals via the first secondary cell.

19. The wireless device of claim 15, wherein the instructions, when executed, further cause the wireless device to receive a media access control (MAC) deactivation command from the base station indicating deactivation of the PUCCH secondary cell.

20. The wireless device of claim 15, wherein the at least one message further comprises a deactivation timer value of a deactivation timer of one or more secondary cells, wherein a deactivation timer for the PUCCH secondary cell is disabled.