Method for allocating resources for HARQ ACK/NACK signal transmission, and method and apparatus for HARQ ACK/NACK signal transmission using same
View Patent ↗The present invention relates to a method for allocating PUCCH resources for an HARQ ACK/NACK signal, and to a method for HARQ ACK/NACK signal transmission using same. The method for allocating PUCCH resources for an HARQ ACK/NACK signal comprises the following steps: constructing an ACK/NACK resource indicator (ARI) mapping table based on the HARQ ACK/NACK signal transmission method of a terminal; transmitting the ARI mapping table to the terminal via upper layer signaling; constructing an ARI indicating PUCCH resources to be allocated to the terminal on the ARI mapping table; and transmitting the ARI to the terminal. The ARI mapping table may be transmitted to a plurality of terminals and shared among the plurality of terminals and a base station.
1. A resource allocation method comprising:
receiving higher layer signaling allocating a size k of resource sets used for transmission of a physical uplink control channel (PUCCH) to a mobile station (MS), from a base station (BS);
receiving a physical downlink control channel (PDCCH) including transmission power control (TPC) information explicitly indicating a specific resource and at least one physical downlink shared channel (PDSCH) in the resource sets from the BS through at least one downlink component carrier; and
mapping a Hybrid Automatic Repeat reQuest Acknowlegement/Not-Acknowlegement (HARQ ACK/NACK) signal with respect to the at least one physical downlink shared channel (PDSCH) to the specific resource and transmitting the same to the BS,
wherein the size k is variably allocated according to a format of the physical uplink control channel (PUCCH) within a maximum number of resources that are allocated to the MS, and k is an integer greater than zero.
2. The resource allocation method of claim 1 , wherein a format of the physical uplink control channel is format 3 .
3. The resource allocation method of claim 1 , wherein the at least one downlink component carrier includes a primary component carrier (PCC) and a secondary component carrier (SCC), and the HARQ ACK/NACK signal is defined by channel selection configuring an HARQ ACK/NACK signal by mapping the resource to a combination of a first HARQ ACK/NACK symbol with respect to a physical downlink shared channel of the PCC and a second HARQ ACK/NACK symbol with respect to a physical downlink shared channel of the SCC.
4. The resource allocation method of claim 1 , wherein the MS has a plurality of transmission antennas, and the HARQ ACK/NACK signal is transmitted through first resource allocated to a first transmission antenna and second resource allocated to a second transmission antenna among the resource sets.
5. The resource allocation method of claim 4 , wherein the HARQ ACK/NACK signal is transmitted through the first resource and the second resource based on a SORTD (Spatial Orthogonal Resource Transmit Diversity) scheme.
6. The resource allocation method of claim 1 , wherein k is equal to or smaller than 8.
7. A resource allocation method comprising:
transmitting higher layer signaling allocating a size k of resource sets used for transmission of a physical uplink control channel (PUCCH) to a mobile station (MS), to the MS;
transmitting a physical downlink control channel (PDCCH) including transmission power control (TPC) information explicitly indicating a specific resource and at least one physical downlink shared channel (PDSCH) in the resource sets to the MS through at least one downlink component carrier; and
receiving a Hybrid Automatic Repeat reQuest Acknowlegement/Not-Acknowlegement (HARQ ACK/NACK) signal with respect to the at least one physical downlink shared channel (PDSCH) mapped to the specific resource from the MS,
wherein the size k is variably allocated according to a format of the physical uplink control channel (PUCCH) within a maximum number of resources that are allocated to the MS, and k is an integer greater than zero.
8. The resource allocation method of claim 7 , wherein a format of the physical uplink control channel is format 3 .
9. The resource allocation method of claim 7 , wherein the at least one downlink component carrier includes a primary component carrier (PCC) and a secondary component carrier (SCC), and the HARQ ACK/NACK signal is defined by channel selection which configures an HARQ ACK/NACK signal by mapping the resource to a combination of a first HARQ ACK/NACK symbol with respect to a physical downlink shared channel of the PCC and a second HARQ ACK/NACK symbol with respect to a physical downlink shared channel of the SCC.
10. The resource allocation method of claim 7 , wherein the MS has a plurality of transmission antennas, and the HARQ ACK/NACK signal is received through first resource allocated to a first transmission antenna and second resource allocated to a second transmission antenna among the resource sets.
11. The resource allocation method of claim 10 , wherein the HARQ ACK/NACK signal is received through the first resource and the second resource based on a SORTD (Spatial Orthogonal Resource Transmit Diversity) scheme.
12. The resource allocation method of claim 7 , wherein k is equal to or smaller than 8.
13. A mobile station (MS) comprising:
a transceiver configured to receive higher layer signaling allocating a size k of resource sets used for transmission of a physical uplink control channel (PUCCH) to a mobile station (MS), from a base station (BS), to receive a physical downlink control channel (PDCCH) including transmission power control (TPC) information explicitly indicating a specific resource and at least one physical downlink shared channel (PDSCH) in the resource sets from the BS through at least one downlink component carrier; and to transmit a Hybrid Automatic Repeat reQuest Acknowlegement/Not-Acknowlegement (HARQ ACK/NACK) signal with respect to the at least one physical downlink shared channel (PDSCH) to the BS;
a storage configured to store information associated with the higher layer signaling; and
a controller configured to provide control to map the HARQ ACK/NACK signal to the specific resource,
wherein the size k is variably allocated according to a format of the physical uplink control channel (PUCCH) within a maximum number of resources that are allocated to the MS, and k is an integer greater than zero.
14. The mobile station of claim 13 , wherein the at least one downlink component carrier includes a primary component carrier (PCC) and a secondary component carrier (SCC), the controller defines the HARQ ACK/NACK signal by channel selection, and the channel selection configures an HARQ ACK/NACK signal by mapping the resource to a combination of a first HARQ ACK/NACK symbol with respect to a physical downlink shared channel of the PCC and a second HARQ ACK/NACK symbol with respect to a physical downlink shared channel of the SCC.
15. The mobile station of claim 13 , wherein the MS has a plurality of transmission antennas, and the transceiver unit transmits the HARQ ACK/NACK signal through first resource allocated to a first transmission antenna and second resource allocated to a second transmission antenna among the resource sets.
16. The mobile station of claim 15 , wherein the transceiver unit transmits the HARQ ACK/NACK signal through the first resource and the second resource based on a SORTD (Spatial Orthogonal Resource Transmit Diversity) scheme.
17. The mobile station of claim 13 , wherein k is equal to or smaller than 8.
18. The mobile station of claim 13 , wherein a format of the physical uplink control channel is format 3 .