Channel State Information Transmission in a Wireless Device and Wireless Network

• US 20160278083A1
• Filed: 03/15/2016
• Published: 09/22/2016
• Est. Priority Date: 03/16/2015
• Status: Active Grant

• Current Assignee: Ofinno, LLC
• Original Assignee: Ofinno Technologies, LLC
• Inventors: Dinan, Esmael Hejazi
• Granted Patent: US 10,447,367 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04B 7/0626 Channel coefficients, e.g. channel state information [CSI]
• CPC Class Codes: H04L 1/00 Arrangements for detecting or preventing errors in the information received correcting synchronisation H04L7/00
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/1858 Transmission or retransmission of more than one copy of acknowledgement message
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 48/00 Access restriction access security to prevent unauthorised access H04W12/08; Network selection; Access point selection
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0219 where the power saving management affects multiple terminals
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 74/006 in the downlink, i.e. towards the terminal
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A wireless device receives at least one message comprising configuration parameters of a plurality of cells. The plurality of cells are grouped into a plurality of physical uplink control channel (PUCCH) groups comprising a primary PUCCH group and a secondary PUCCH group comprising a PUCCH secondary cell. The wireless device receives, in subframe n, a media access control (MAC) command indicating deactivation of the PUCCH secondary cell. The wireless device stops transmission of channel state information for a first secondary cell in the secondary PUCCH group in subframe n+8.

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, 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;

receiving, in subframe n, a media access control (MAC) command indicating deactivation of the PUCCH secondary cell; and

stopping transmission of channel state information for a first secondary cell in the secondary PUCCH group in subframe n+8, wherein the first secondary cell is different from the PUCCH secondary cell.

2. The method of claim 1, further comprising stopping a deactivation timer associated with the first secondary cell on or before subframe n+8.

3. The method of claim 1, wherein the at least one message comprises a plurality of dedicated parameters comprising a deactivation timer parameter.

4. The method of claim 1, wherein the MAC command comprises a bitmap.

5. The method of claim 1, further comprising stopping a monitoring of a downlink control channel of the first secondary cell on or before subframe n+8.

6. The method of claim 1, wherein the MAC command further indicates a deactivation of the first secondary cell.

7. The method of claim 1, further comprising stopping uplink transmission on the first secondary cell before stopping uplink transmission on the PUCCH secondary cell.

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, 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;

receiving, in subframe n, a media access control (MAC) command indicating deactivation of a first secondary cell and the PUCCH secondary cell;

stopping uplink transmission on the PUCCH secondary cell on subframe n+8; and

stopping uplink transmission on the first secondary cell before subframe n+8.

9. The method of claim 8, further comprising stopping a deactivation timer associated with the first secondary cell on or before subframe n+8.

10. The method of claim 8, wherein the at least one message comprises a plurality of dedicated parameters comprising a deactivation timer parameter.

11. The method of claim 8, wherein the MAC command comprises a bitmap.

12. The method of claim 8, further comprising stopping a monitoring of a downlink control channel of the first secondary cell on or before subframe n+8.

13. The method of claim 8, wherein a deactivation timer of the PUCCH secondary cell is disabled.

14. A wireless device comprising:

one or more processors; and

memory storing instructions that, when executed, cause the wireless device to;

receiving, from a base station, at least one message comprising configuration parameters of a plurality of cells, 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;

receiving, in subframe n, a media access control (MAC) command indicating deactivation of the PUCCH secondary cell; and

stopping transmission of channel state information for a first secondary cell in the secondary PUCCH group in subframe n+8, wherein the first secondary cell is different from the PUCCH secondary cell.

15. The wireless device of claim 14, wherein the instructions, when executed, further cause the wireless device to stop a deactivation timer associated with the first secondary cell on or before subframe n+8.

16. The wireless device of claim 14, wherein the at least one message comprises a plurality of dedicated parameters comprising a deactivation timer parameter.

17. The wireless device of claim 14, wherein the MAC command comprises a bitmap.

18. The wireless device of claim 14, wherein the instructions, when executed, further cause the wireless device to stop monitoring a downlink control channel of the first secondary cell on or before subframe n+8.

19. The wireless device of claim 14, wherein the MAC command further indicates a deactivation of the first secondary cell.

20. The wireless device of claim 14, wherein the instructions, when executed, further cause the wireless device to stop uplink transmission on the first secondary cell before stopping uplink transmission on the PUCCH secondary cell.