Channel state information transmission
First Claim
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1. A method comprising:
- receiving, by a wireless device, 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; and
a secondary PUCCH group comprising a PUCCH secondary cell with a secondary PUCCH;
receiving, in subframe m, a first media-access-control control element (MAC CE) indicating activation of a secondary cell in the primary PUCCH group;
starting transmission of channel state information (CSI) fields of the secondary cell from subframe m+8;
receiving, in subframe n, a second MAC CE indicating activation of the PUCCH secondary cell; and
starting transmission of CSI fields for the PUCCH secondary cell from subframe n+8+k, wherein k is an integer depending, at least in part, on when the PUCCH secondary cell is successfully detected by the wireless device.
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Abstract
A plurality of cells comprise a PUCCH secondary cell with a secondary PUCCH. The wireless device receives, in subframe n, a media-access-control control element indicating activation of the PUCCH secondary cell. The wireless device starts transmission of channel state information (CSI) fields for the PUCCH secondary cell from subframe n+8+k. k is an integer depending, at least in part, on when the PUCCH secondary cell is successfully detected by the wireless device.
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Citations
20 Claims
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1. A method comprising:
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receiving, by a wireless device, 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; and a secondary PUCCH group comprising a PUCCH secondary cell with a secondary PUCCH; receiving, in subframe m, a first media-access-control control element (MAC CE) indicating activation of a secondary cell in the primary PUCCH group; starting transmission of channel state information (CSI) fields of the secondary cell from subframe m+8; receiving, in subframe n, a second MAC CE indicating activation of the PUCCH secondary cell; and starting transmission of CSI fields for the PUCCH secondary cell from subframe n+8+k, wherein k is an integer depending, at least in part, on when the PUCCH secondary cell is successfully detected by the wireless device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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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; and a secondary PUCCH group comprising a PUCCH secondary cell with a secondary PUCCH; receiving, in subframe m, a first media-access-control control element (MAC CE) indicating activation of a plurality of secondary cells comprising; a secondary cell in the primary PUCCH group; and the PUCCH secondary cell; starting transmission of channel state information (CSI) fields of the secondary cell in the primary PUCCH group from subframe m+8; and starting transmission of CSI fields for the PUCCH secondary cell from subframe m+8+k, wherein k is an integer number depending, at least in part, on when the PUCCH secondary cell is successfully detected by the wireless device. - View Dependent Claims (10, 11, 12)
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13. A wireless device comprising:
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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, 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; and a secondary PUCCH group comprising a PUCCH secondary cell with a secondary PUCCH; receive, in subframe m, a first media-access-control control element (MAC CE) indicating activation of a secondary cell in the primary PUCCH group; start transmission of channel state information (CSI) fields of the secondary cell from subframe m+8; receive, in subframe n, a second MAC CE indicating activation of the PUCCH secondary cell; and start transmission of CSI fields for the PUCCH secondary cell from subframe n+8+k, wherein k is an integer depending, at least in part, on when the PUCCH secondary cell is successfully detected by the wireless device. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification