Transmission of uplink control information in carrier aggregation with a large number of cells
AssigneeSamsung Electronics Co., Ltd.
InventorAris Papasakellariou
Life of this patent
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Abstract
A user equipment (UE) transmits uplink control information (UCI) and a base station receives UCI when the UE is configured to have a number of cells configured for operation with carrier aggregation (CA). The base station configures the UE with a code rate and the UE determines a maximum UCI payload to transmit in a subframe that results in a transmission code rate that is no larger than the configured code rate. For transmission of aperiodic channel state information (A-CSI), a number of triggering states depends on the number of cells.
Claims20
A method for transmitting a first uplink control information (UCI) and a second UCI in a physical uplink control channel (PUCCH), the method comprising:
- receiving
- a configuration for a first code rate, and
- a configuration for a second code rate;
- determining
- a first number of resource elements (REs) of the PUCCH for transmitting the first UCI based on the first code rate, and
- a second number of REs of the PUCCH for transmitting the second UCI based on the second code rate;
- and
- transmitting the PUCCH with
- the first UCI over the first number of REs, and
- the second UCI over the second number of REs.
A user equipment (UE), comprising:
- a receiver configured to receive
- a configuration for a first code rate, and
- a configuration for a second code rate;
- a processor operably connected to the receiver, the processor configured to determine
- a first number of resource elements (REs) of a physical uplink shared channel (PUCCH) for transmitting a first uplink control information (UCI) based on the first code rate, and
- a second number of REs of the PUCCH for transmitting a second UCI based on the second code rate;
- and
- a transmitter operably connected to the processor, the transmitter configured to transmit the PUCCH with
- the first UCI over the first number of REs, and
- the second UCI over the second number of REs.
A base station, comprising:
- a transmitter configured to transmit
- a configuration for a first code rate, and
- a configuration for a second code rate;
- a processor operably connected to the transmitter, the processor configured to determine
- a first number of resource elements (REs) of a physical uplink shared channel (PUCCH) for receiving a first uplink control information (UCI) based on the first code rate, and
- a second number of REs of the PUCCH for receiving a second UCI based on the second code rate;
- and
- a receiver operably connected to the processor, the receiver configured to receive the PUCCH with
- the first UCI over the first number of REs, and
- the second UCI over the second number of REs.
Dependencies are inferred from the claim text.