Secondary Cell and Control Channel in a Wireless Device and Wireless Network

• US 20160270061A1
• Filed: 02/26/2016
• Published: 09/15/2016
• Est. Priority Date: 03/09/2015
• Status: Active Grant

• Current Assignee: Comcast Cable Communications LLC (Comcast Corporation)
• Original Assignee: Ofinno Technologies, LLC (Ofinno, LLC)
• Inventors: Dinan, Esmael Hejazi
• Granted Patent: US 9,872,336 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0051 of dedicated pilots, i.e. pilots destined for a single user or terminal
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0096 Indication of changes in allocation
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 76/34 Selective release of ongoing connections
• CPC Class Codes: H04W 76/38 triggered by timers

Abstract

A plurality of physical uplink control channel (PUCCH) groups comprise a primary PUCCH group comprising a primary cell and a secondary PUCCH group comprising a PUCCH secondary cell. The wireless device deactivates the PUCCH secondary cell after a deactivation condition for the PUCCH secondary cell is met. The wireless device stops transmission of channel state information for a first secondary cell in the secondary PUCCH group after deactivation of the PUCCH secondary cell. The wireless device stops transmission of positive acknowledgement and negative acknowledgement on the PUCCH secondary cell after deactivation of the PUCCH secondary cell.

Claims

1. A method comprising:

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

configuration parameters of a plurality of cells comprising at least one secondary cell, the 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 transmitted to the base station; and

a secondary PUCCH group comprising a PUCCH secondary cell with a secondary PUCCH transmitted to the base station; and

a deactivation timer value for a deactivation timer of one or more secondary cells;

deactivating the PUCCH secondary cell after a deactivation condition for the PUCCH secondary cell is met;

stopping transmission of channel state information for a first secondary cell in the secondary PUCCH group after deactivation of the PUCCH secondary cell, wherein the first secondary cell is different from the PUCCH secondary cell; and

stopping transmission of positive acknowledgement and negative acknowledgement on the PUCCH secondary cell after deactivation of the PUCCH secondary cell.

2. The method of claim 1, further comprising stopping receiving downlink shared channel transport blocks on the first secondary cell.

3. The method of claim 1, further comprising:

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

transmitting the uplink transport block on the first secondary cell.

4. The method of claim 1, further comprising continuing transmission of sounding reference signals on the first secondary cell.

5. A method of claim 1, further comprising flushing downlink HARQ buffers or downlink HARQ processes for the first secondary cell after deactivation of the PUCCH secondary cell.

6. A method of claim 1, wherein a deactivation timer of the PUCCH secondary cell is disabled.

7. A method of claim 1, further comprising maintaining configuration of PUCCH resources of the PUCCH secondary cell when the PUCCH secondary cell is deactivated.

8. A method comprising:

transmitting, by a base station to a wireless device, at least one message comprising;

configuration parameters of a plurality of cells comprising at least one secondary cell, the 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 received by the base station; and

a secondary PUCCH group comprising a PUCCH secondary cell with a secondary PUCCH received by the base station; and

a deactivation timer value for a deactivation timer of one or more secondary cells; and

deactivating a state of the PUCCH secondary cell for the wireless device after a deactivation condition for the PUCCH secondary cell is met;

stopping reception, from the wireless device, of channel state information for a first secondary cell in the secondary PUCCH group after deactivation of the PUCCH secondary cell, wherein the first secondary cell is different from the PUCCH secondary cell; and

stopping reception of positive acknowledgement and negative acknowledgement on the PUCCH secondary cell from the wireless device after deactivation of the PUCCH secondary cell.

9. The method of claim 8, further comprising stopping transmitting downlink shared channel transport blocks to the wireless device on the first secondary cell.

10. The method of claim 8, further comprising:

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

receiving the uplink transport block on the first secondary cell.

11. The method of claim 8, further comprising continuing receiving, from the wireless device, sounding reference signals on the first secondary cell.

12. A method of claim 8, further comprising transmitting a MAC deactivation command from the base station indicating deactivation of the PUCCH secondary cell.

13. A method of claim 8, wherein a deactivation timer of the PUCCH secondary cell for the wireless device is disabled.

14. A 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, cause the wireless device to;

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

configuration parameters of a plurality of cells comprising at least one secondary cell, the 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 transmitted to the base station; and

a secondary PUCCH group comprising a PUCCH secondary cell with a secondary PUCCH transmitted to the base station; and

a deactivation timer value for a deactivation timer of one or more secondary cells;

deactivate the PUCCH secondary cell after a deactivation condition for the PUCCH secondary cell is met;

stop transmission of channel state information for a first secondary cell in the secondary PUCCH group after deactivation of the PUCCH secondary cell, wherein the first secondary cell is different from the PUCCH secondary cell; and

stop transmission of positive acknowledgement and negative acknowledgement on the PUCCH secondary cell after 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 on 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 on the first secondary cell; and

transmit the uplink transport block on 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 on the first secondary cell.

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

20. A wireless device of claim 15, wherein a deactivation timer of the PUCCH secondary cell is disabled.