Method and device for transmitting uplink acknowledgement information in a wireless communication system supporting multiple carriers
First Claim
1. A method of transmitting uplink acknowledgement/negative-acknowledgement (UL ACK/NACK) information, which is transmitted by a user equipment in a multicarrier supportive wireless communication system, the method comprising:
- receiving a downlink control information including a downlink assignment index (DAI) information indicating a combination of a total number (ntotal) of downlink control channels and an order value (nindex) of the downlink control channels,wherein the total number (ntotal) of the downlink control channels indicates total number of downlink control channels over all of carriers configured to the user equipment; and
transmitting the UL ACK/NACK information based on the total number (ntotal) of the downlink control channels and the order value (nindex) of the downlink control channels indicated by the DAI information,wherein the DAI information indicates a DAI value among a plurality of DAI values,wherein the plurality of DAI values includes at least one DAI value such that different combinations of the total number (ntotal) of f the downlink control channels and the order value (nindex) of the downlink control channels are mapped duplicatively to a same DAI value, andwherein the DAI information has a value of DAI=ntotal(ntotal−
1)/2+nindex−
1 if ntotal<
Nth and wherein the DAI information has a value of DAI=Nth(Nth−
1)/2+ntotal−
Nth if ntotal≧
Nth, wherein the Nth is a predetermined natural number, and wherein the order value (nindex) of the downlink control channel has a value of a natural number equal to or smaller than nindex.
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Accused Products
Abstract
The present invention relates to a wireless communication system, and more particularly, to a method and device for transmitting uplink acknowledgement information in a wireless communication system supporting multiple carriers. A method for a terminal for transmitting uplink acknowledgement information in a wireless communication system supporting multiple carriers according to one embodiment of the present invention includes: receiving downlink control information including downlink assignment index (DAI) information representing a combination of the number of downlink control channels (ntotal) and a priority value (nindex); and transmitting the uplink acknowledgement information on the basis of the number of downlink control channels (ntotal) and the priority value (nindex) that the DAI information represents. Here, the DAI information includes at least one DAI value, in which varying combinations of the number of downlink control channels (ntotal) and the priority value (nindex) are overlapped and mapped.
18 Citations
11 Claims
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1. A method of transmitting uplink acknowledgement/negative-acknowledgement (UL ACK/NACK) information, which is transmitted by a user equipment in a multicarrier supportive wireless communication system, the method comprising:
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receiving a downlink control information including a downlink assignment index (DAI) information indicating a combination of a total number (ntotal) of downlink control channels and an order value (nindex) of the downlink control channels, wherein the total number (ntotal) of the downlink control channels indicates total number of downlink control channels over all of carriers configured to the user equipment; and transmitting the UL ACK/NACK information based on the total number (ntotal) of the downlink control channels and the order value (nindex) of the downlink control channels indicated by the DAI information, wherein the DAI information indicates a DAI value among a plurality of DAI values, wherein the plurality of DAI values includes at least one DAI value such that different combinations of the total number (ntotal) of f the downlink control channels and the order value (nindex) of the downlink control channels are mapped duplicatively to a same DAI value, and wherein the DAI information has a value of DAI=ntotal(ntotal−
1)/2+nindex−
1 if ntotal<
Nth and wherein the DAI information has a value of DAI=Nth(Nth−
1)/2+ntotal−
Nth if ntotal≧
Nth, wherein the Nth is a predetermined natural number, and wherein the order value (nindex) of the downlink control channel has a value of a natural number equal to or smaller than nindex. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of transmitting downlink control information, which is transmitted by a base station in a multicarrier supportive wireless communication system, the method comprising:
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creating a downlink assignment index (DAI) information indicating a combination of a total number (ntotal) of downlink control channels and an order value (nindex) of the downlink control channels, wherein the total number (ntotal) of the downlink control channels indicates total number of downlink control channels over all of carriers configured to the user equipment; and transmitting a downlink control information including the created downlink assignment index information, wherein the total number (ntotal) of the downlink control channels and the order value (nindex) of the downlink control channels indicated by the DAI information is used for creation of uplink acknowledgement/negative-acknowledgement (UL ACK/NACK) information, wherein the DAI information indicates a DAI value among a plurality of DAI values, and wherein the plurality of DAI values includes at least one DAI value such that different combinations of the total number (ntotal) of f the downlink control channels and the order value (nindex) of the downlink control channels are mapped duplicatively to a same DAI value, and wherein the DAI information has a value of DAI=ntotal(ntotal−
1)/2+nindex−
1 if ntotal<
Nth and wherein the DAI information has a value of DAI=Nth(Nth−
1)/2+ntotal−
Nth if ntotal≧
Nth, wherein the Nth is a predetermined natural number, and wherein the order value (nindex) of the downlink control channel has a value of a natural number equal to or smaller than nindex.
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10. A user equipment, which transmits uplink (UL) acknowledgement/negative-acknowledgement (ACK/NACK) information, the user equipment comprising:
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a receiving module configured to receive a downlink signal from a base station; a transmitting module configured to transmit an uplink signal to the base station; and a processor configured to; control the receiving module and the transmitting module, receive a downlink control information including a downlink assignment index (DAI) information indicating a combination of a total number (ntotal) of downlink control channels and an order value (nindex) of the downlink control channels via the receiving module, and transmit the UL ACK/NACK information via the transmitting module based on the total number (ntotal) of f the downlink control channels and the order value (nindex) of the downlink control channels indicated by the DAI information, wherein the total number (ntotal) of the downlink control channels indicates total number of downlink control channels over all of carriers configured to the user equipment, wherein the DAI information indicates a DAI value among a plurality of DAI values, wherein the plurality of DAI values includes at least one DAI value such that different combinations of the total number (ntotal) of the downlink control channels and the order value (nindex) of the downlink control channels are mapped duplicatively to a same DAI value, and wherein the DAI information has a value of DAI=ntotal(ntotal−
1)/2+nindex−
1 if ntotal<
Nth and wherein the DAI information has a value of DAI=Nth(Nth−
1)/2+ntotal−
Nth if ntotal≧
Nth, wherein the Nth is a predetermined natural number, and wherein the order value (nindex of the downlink control channel has a value of a natural number equal to or smaller than nindex.
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11. A base station, which transmits downlink control information in a multicarrier supportive wireless communication system, the base station comprising:
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a receiving module configured to receive an uplink signal from a user equipment; a transmitting module configured to transmit a downlink signal to the user equipment; and a processor configured to; control the receiving module and the transmitting module, create a downlink assignment index (DAI) information indicating a combination of a total number (ntotal) of downlink control channels and an order value (nindex) of the downlink control channels, and transmit the downlink control information including the created DAI information, wherein the total number (ntotal) of the downlink control channels indicates total number of downlink control channels over all of carriers configured to the user equipment, wherein the total number (ntotal) of the downlink control channels and the order value (nindex) of the downlink control channels indicated by the DAI information are used for creation of uplink acknowledgement/negative-acknowledgement (UL ACK/NACK) information in the user equipment, wherein the DAI information indicates a DAI value among a plurality of DAI values, wherein the plurality of DAI values includes at least one DAI value such that different combinations of the total number (ntotal) of the downlink control channels and the order value (nindex) of the downlink control channels are mapped duplicatively to a same DAI value, and wherein the DAI information has a value of DAI=ntotal(ntotal−
1)/2+nindex−
1 if ntotal<
Nth and wherein the DAI information has a value of DAI=Nth(Nth−
1)/2+ntotal−
Nth if ntotal≧
Nth, wherein the Nth is a predetermined natural number, and wherein the order value (nindex) of the downlink control channel has a value of a natural number equal to or smaller than nindex.
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Specification