Abstract
Provided are a wireless communication terminal device and a control channel forming method with which, in the forming of a control channel for transmitting control information including an ACK/NACK and CSI (channel state information), wasteful use of resources is reduced compared to that in related art. In the case where CSI is transmitted independently, and in the case where CSI and an ACK/NACK are transmitted at the same time, the same format is used to form a control channel. Furthermore, in the case where an ACK/NACK is transmitted independently, another format is used if a component carrier (CC) number is equal to or less than 2, and the same format is used if the CC number is equal to or greater than 3.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Information | ||||||
4G | 23/09/2019 | ISLD-201912-056 | SUN PATENT TRUST | Yes | Family Member | ||||
4G | 14/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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Yes | Basis Patent |
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JP6069642B2 | 4G | 26/07/2016 | ISLD-201609-008 | PANASONIC CORP | Yes | Family Member | ||||
JP6069642B2 | 4G | 23/09/2019 | ISLD-201912-056 | SUN PATENT TRUST | Yes | Family Member | ||||
JP6069642B2 | 4G | 14/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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JPWO2013132774A1 | 4G | 26/07/2016 | ISLD-201609-008 | PANASONIC CORP | Yes | Family Member | ||||
JPWO2013132774A1 | 4G | 23/09/2019 | ISLD-201912-056 | SUN PATENT TRUST | Yes | Family Member | ||||
JPWO2013132774A1 | 4G | 14/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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JP6269792B2 | 4G | 23/09/2019 | ISLD-201912-056 | SUN PATENT TRUST | Yes | Family Member | ||||
JP6269792B2 | 4G | 14/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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US9877306B2 | 4G | 23/09/2019 | ISLD-201912-056 | SUN PATENT TRUST | Yes | Family Member | ||||
US9877306B2 | 4G | 14/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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US10075942B2 | 4G | 23/09/2019 | ISLD-201912-056 | SUN PATENT TRUST | Yes | Family Member | ||||
US10075942B2 | 4G | 14/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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US2018352543A1 | 4G | 14/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Claim
1. A radio communication terminal apparatus comprising:
a formation section that forms a control channel for transmitting control information including at least one of ACK/NACK and CSI (Channel State Information), using one of a plurality of formats; and a transmitting section that transmits the formed control channel, wherein the formation section uses a first format when the control information includes only the CSI out of the ACK/NACK and the CSI, and when the control information includes the ACK/NACK and the CSI.
2. The radio communication terminal apparatus according to claim 1, wherein the formation section uses a second format when the control information includes only the ACK/NACK out of the ACK/NACK and the CSI.
3. The radio communication terminal apparatus according to claim 1, wherein, when the control information includes only the ACK/NACK out of the ACK/NACK and the CSI, the formation section uses a second format when the number of CCs (component carriers) is two or less and uses the first format when the number of CCs is three or more.
4. The radio communication terminal apparatus according to claim 1, wherein when the CSI includes only the RI out of CQI (Channel Quality Indicator), PMI (Precoding Matrix Indicator) and RI (Rank Indicator), the formation section uses a third format when the number of CCs (component carriers) is 2 or less.
5. The radio communication terminal apparatus according to claim 1, wherein when the control information includes only the ACK/NACK for PCC (Primary Component Carrier) out of the ACK/NACK and the CSI, the formation section uses a second format.
6. The radio communication terminal apparatus according to claim 1, wherein, when the control information includes only the CSI out of the ACK/NACK and the CSI and when the control information includes the ACK/NACK for PCC (Primary Component Carrier) and the CSI, the formation section forms the control channel using a resource configured beforehand.
7. The radio communication terminal apparatus according to claim 1, wherein, when the control information includes the ACK/NACK for SCC (Secondary Component Carrier) and the CSI, the formation section forms the control channel using a resource configured beforehand.
8. The radio communication terminal apparatus according to claim 1, wherein, when the control information includes the ACK/NACK for SCC (Secondary Component Carrier) and when there is no downlink data assignment for SCC, the formation section forms the control channel using a resource configured beforehand and when there is downlink data assignment for the SCC, the formation section forms the control channel using a resource indicated from a base station.
9. The radio communication terminal apparatus according to claim 8, wherein the formation section sets the resource configured for the CSI to be the resource indicated from the base station.
10. A control channel formation method for forming a control channel for transmitting control information including at least one of ACK/NACK and CSI (Channel State Information), using one of a plurality of formats, the method comprising
forming the control channel using a first format when the control information includes only the CSI out of the ACK/NACK and the CSI, and when the control information includes the ACK/NACK and the CSI.
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The information in purple was extracted from the FrandAvenue
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