Method and apparatus for transmitting and receiving data
AssigneeLG Electronics Inc.
InventorsBonghoe Kim, Dongyoun Seo, Daesung Hwang, Joonkui Ahn
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Abstract
Disclosed are a method and an apparatus for transmitting and receiving data. A method for transmitting an uplink comprises the steps of: a terminal determining the size of an ACK/NACK payload according to a transmission mode of a first serving cell and a transmission mode of a second serving cell; the terminal establishing a transmission power for transmitting the ACK/NACK payload based on the size of the ACK/NACK payload; and the terminal transmitting the ACK/NACK payload through a physical uplink control channel (PUCCH) based on the transmission power.
Claims10
A method for a uplink transmission comprising:
- determining, by a user equipment (UE), a size of an acknowledgement/non-acknowledgement (ACK/NACK) payload depending on a transmission mode of a first serving cell and a transmission mode of a second serving cell;
- configuring, by the UE, a transmit power for transmitting the ACK/NACK payload based on the size of the ACK/NACK payload;
- and
- transmitting, by the UE, the ACK/NACK payload through a physical uplink control channel (PUCCH) based on the transmit power by the UE,
- wherein the size of the ACK/NACK payload is determined based on a following equation when the UE uses frequency division duplex (FDD) as a duplexing scheme and the PUCCH is PUCCH format 3 or PUCCH format 1 with a channel selection,
- n
- HARQ
- =
- ∑
- c
- =
- 0
- N
- cells
- DL
-
- n
- c
- ACK
- wherein, the nHARQ is the size of the ACK/NACK payload, the NcellsDL is a number of serving cells, and the ncACK is a parameter determined according to a cell's transmission mode.
A user equipment (UE) in a wireless communication system, the UE comprising:
- a radio frequency (RF) unit configured to receive a radio signal;
- and
- a processor operatively connected with the RF unit and configured to:
- determine a size of an acknowledgement/non-acknowledgement (ACK/NACK) payload depending on a transmission mode of a first serving cell and a transmission mode of a second serving cell,
- configure a transmit power for transmitting the ACK/NACK payload based on the size of the ACK/NACK payload, and
- transmit the ACK/NACK payload through a physical uplink control channel (PUCCH) based on the transmit power,
- wherein the size of the ACK/NACK payload is determined based on a following equation when the UE uses frequency division duplex (FDD) as a duplexing scheme and the PUCCH is PUCCH format 3 or PUCCH format 1 with a channel selection,
- n
- HARQ
- =
- ∑
- c
- =
- 0
- N
- cells
- DL
-
- n
- c
- ACK
- wherein, the nHARQ is the size of the ACK/NACK payload, the NcellsDL is a number of serving cells, and the ncACK is a parameter determined according to a cell's transmission mode.
Dependencies are inferred from the claim text.