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US 9,871,572 B2Granted
Uplink control channel in a wireless network
AssigneeOfinno Technologies, LLC
InventorEsmael Hejazi Dinan
Life of this patent
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Abstract
A physical uplink control channel (PUCCH) secondary cell is in a first timing advance group. A wireless device receives, in subframe n, an activation command activating the PUCCH secondary cell. The wireless device receives a random access response comprising a timing advance command (TAC). The wireless device starts transmission of valid channel state information (CSI) on the PUCCH secondary cell in subframe n+k. k is greater than eight and is based on a delay from receiving the activation command until the wireless device applies the received TAC.
Claims19
A method comprising:
- receiving, by a wireless device, at least one message comprising configuration parameters of a plurality of cells grouped into a plurality of timing advance groups (TAGs), the plurality of cells comprising:
- a primary cell with a primary physical uplink control channel (PUCCH);
- and
- a PUCCH secondary cell with a secondary PUCCH, wherein the PUCCH secondary cell is in a first TAG in the plurality of TAGs;
- receiving, in subframe n, an activation command activating the PUCCH secondary cell;
- receiving a command initiating transmission of a preamble on the first TAG;
- receiving a response comprising a timing advance command (TAC);
- starting transmission of valid channel state information (CSI) on the PUCCH secondary cell in subframe n+k, wherein k is greater than eight and is based on a delay from receiving the activation command until the wireless device applies the received TAC;
- and
- processing downlink shared channel transport blocks received via the PUCCH secondary cell after applying the TAC to the first TAG.
7 more elements
A wireless device comprising:
- one or more processors;
- and
- memory storing instructions that, when executed, cause the wireless device to:
- receive at least one message comprising configuration parameters of a plurality of cells are grouped into a plurality of timing advance groups (TAGs), the plurality of cells comprising:
- a primary cell with a primary physical uplink control channel (PUCCH);
- and
- a PUCCH secondary cell with a secondary PUCCH, wherein the PUCCH secondary cell is in a first TAG in the plurality of TAGs;
- receive, in subframe n, an activation command activating the PUCCH secondary cell;
- receive a command initiating transmission of a preamble on the first TAG;
- receive a response comprising a timing advance command (TAC);
- start transmission of valid channel state information (CSI) on the PUCCH secondary cell in subframe n+k, wherein k is greater than eight and is based on a delay from receiving the activation command until the wireless device applies the received TAC;
- and
- process downlink shared channel transport blocks received via the PUCCH secondary cell after applying the TAC to the first TAG.
10 more elements
A method comprising:
- transmitting, by a base station, at least one message comprising configuration parameters of a plurality of cells grouped into a plurality of timing advance groups (TAGs), the plurality of cells comprising:
- a primary cell with a primary physical uplink control channel (PUCCH);
- and
- a PUCCH secondary cell with a secondary PUCCH, wherein the PUCCH secondary cell is in a first TAG in the plurality of TAGs;
- transmitting, in subframe n, an activation command activating the PUCCH secondary cell;
- transmitting a command initiating transmission of a preamble on the first TAG;
- transmitting a response comprising a timing advance command (TAC);
- and
- starting reception of valid channel state information (CSI) from the wireless device on the PUCCH secondary cell in subframe n+k, wherein k is greater than eight and is based on a delay from transmitting the activation command until the TAC is applied to uplink signals;
- and
- transmitting downlink shared channel transport blocks via the PUCCH secondary cell after the TAC was transmitted for the first TAG.
8 more elements
Dependencies are inferred from the claim text.