Method for feeding back ACK/NACK for downlink data transmission in radio communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsYingyang Li, Xiaoqiang Li
Life of this patent
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Abstract
Embodiments of the present invention provide a method for feeding back ACK/NACK for downlink data transmission in a radio communication system. The method is applied on a mobile terminal and includes the following steps: receiving downlink data, calculating, with respect to each Component Carrier (CC), a number of ACKs of ACK/NACK information of downlink data sub-frames of the CC, and feeding back numbers of ACKs of the ACK/NACK information of the downlink data sub-frames of CCs.
Claims20
A method for transmitting ACK/NACK signal for data of two configured serving cells, the method comprising:
- receiving a plurality of physical downlink shared channels (PDSCHs);
- mapping ACK/NACK bits;
- and
- transmitting the ACK/NACK signal based on the ACK/NACK bits on one physical uplink control channel (PUCCH) resource selected from a plurality of PUCCH resources configured for the two configured serving cells,
- wherein the plurality of PUCCH resources comprises PUCCH resources of indices 0 and 1 corresponding to downlink data on a first serving cell and PUCCH resources of indices 2 and 3 corresponding to downlink data on a secondary serving cell, and
- wherein the plurality of PUCCH resources are configured on a cell.
A method for receiving ACK/NACK signal for data of two configured serving cells, the method comprising:
- transmitting a plurality of physical downlink shared channels (PDSCH);
- and
- receiving the ACK/NACK signal based on ACK/NACK bits on one physical uplink control channel (PUCCH) resource selected from a plurality of PUCCH resources configured for the two configured serving cells,
- wherein the plurality of PUCCH resources comprises PUCCH resources of indices 0 and 1 corresponding to downlink data on a first serving cell and PUCCH resources of indices 2 and 3 corresponding to downlink data on a secondary serving cell, and
- wherein the plurality of PUCCH resources are configured on a cell.
An apparatus for transmitting ACK/NACK signal for data of two configured serving cells, the apparatus comprising:
- a transceiver configured to transmit and receive data;
- and
- a controller configured to control to:
- receive a plurality of physical downlink shared channels (PDSCHs), map ACK/NACK bits, and
- transmit the ACK/NACK signal based on the ACK/NACK bits on one physical uplink control channel (PUCCH) resource selected from a plurality of PUCCH resources configured for the two configured serving cells,
- wherein the plurality of PUCCH resources comprises PUCCH resources of indices 0 and 1 corresponding to downlink data on a first serving cell and PUCCH resources of indices 2 and 3 corresponding to downlink data on a secondary serving cell, and
- wherein the plurality of PUCCH resources are configured on a cell.
An apparatus for receiving ACK/NACK signal for data of two configured serving cells, the apparatus comprising:
- a transceiver configured to transmit and receive data;
- and
- a controller configured to:
- control to transmit a plurality of physical downlink shared channels (PDSCHs), and
- receive the ACK/NACK signal based on ACK/NACK bits on one physical uplink control channel (PUCCH) resource selected from a plurality of PUCCH resources configured for the two configured serving cells,
- wherein the plurality of PUCCH resources comprises PUCCH resources of indices 0 and 1 corresponding to downlink data on a first serving cell and PUCCH resources of indices 2 and 3 corresponding to downlink data on a secondary serving cell, and
- wherein the plurality of PUCCH resources are configured on a cell.
Dependencies are inferred from the claim text.