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US 2013/0279459 A1Published application
Method and user equipment for transmitting uplink control information, and method and base station for receiving uplink control information
AssigneeLG Electronics Inc.
InventorsHyunwoo Lee, Sungho Moon, Jaehoon Chung, Seunghee Han
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Abstract
In the present invention, when a user equipment (UE) transmits ACK/NACK information of multiple CCs to a base station (BS), ACK/NACK responses of one CC detected in the order of [ACK, ACK, ACK, ACK], and other ACK/NACK responses of the CC detected in the order of [ACK, DTX, DTX, DTX] are treated to be the same. According to the present invention, control information can be effectively transmitted in a wireless system.
Claims20
A method for transmitting, by a user equipment (UE), uplink control information to a base station (BS) in a wireless communication system, the method comprising:
- detecting 4 first ACK (ACKnowledgement)/NACK (Negative ACK)/DTX (Discontinuous Transmission) responses [x(0), x(1), x(2), x(3)] for 4 downlink (DL) transmissions on a first carrier, where x(i), 0≦i≦3, is an ACK/NACK/DTX response for i-th DL transmission on the first carrier;
- detecting 4 second ACK/NACK/DTX responses [y(0), y(1), y(2), y(3)] for 4 DL transmissions on a second carrier, where y(i), 0≦i≦3, is an ACK/NACK/DTX response for i-th DL transmission on the second carrier;
- performing channel selection, by selecting one of a plurality of physical uplink control channel (PUCCH) resources and generating transmission bits, based on [x(0), x(1), x(2), x(3)] and [y(0), y(1), y(2), y(3)];
- and transmitting the generated transmission bits on the selected PUCCH resource,
- wherein when [y(0), y(1), y(2), y(3)] is the same, the same transmission bits are generated for [x(0), x(1), x(2), x(3)]=[ACK, ACK, ACK, ACK] and for [x(0), x(1), x(2), x(3)]=[ACK, DTX, DTX, DTX].
2 more elements
A method for receiving, by a base station (BS), uplink (UL) control information from a user equipment (UE) in a wireless communication system, the method comprising:
- transmitting a first carrier and a second carrier to the user equipment (UE);
- receiving, from the user equipment (UE), transmission bits on one of a plurality of physical uplink control channel (PUCCH) resources;
- determining first ACK (ACKnowledgement)/NACK (Negative ACK)/DTX (Discontinuous Transmission) responses [x(0), x(1), x(2), x(3)] for the first carrier, where x(i), 0≦i≦3, is an ACK/NACK/DTX response for i-th DL transmission on the first carrier, and second ACK/NACK/DTX responses [y(0), y(1), y(2), y(3)] for the second carrier, where y(i), 0≦i≦3, is an ACK/NACK/DTX response for i-th DL transmission on the second carrier, based on the transmission bits and the PUCCH resource on which the transmission bits are received,
- wherein the first ACK/NACK/DTX responses and the second ACK/NACK/DTX responses are determined using a mapping table, and the mapping table includes mapping relationship shown in the following table:
- TABLE
- ACK/NACK/DTX responses
- ACK/NACK/DTX responses
- PUCCH
- for primary carrier
- for secondary carrier
- resource
- a0, a1
- ACK, ACK, ACK, ACK
- ACK, ACK, ACK, ACK
- n(1)PUCCH2
- 1, 0
- ACK, ACK, ACK, ACK
- ACK, ACK, ACK, NACK/DTX
- n(1)PUCCH3
- 1, 1
- ACK, ACK, ACK, ACK
- ACK, ACK, NACK/DTX any
- n(1)PUCCH0
- 0, 1
- ACK, ACK, ACK, AOC
- ACK, DTX, DTX, DTX
- n(1)PUCCH2
- 1, 0
- ACK, ACK, ACK, NACK/DTX
- ACK, ACK, ACK, ACK
- n(1)PUCCH2
- 1, 1
- ACK, ACK, ACK, NACK/DTX
- ACK, DTX, DTX, DTX
- n(1)PUCCH2
- 1, 1
- ACK, ACK, NACK/DTX, any
- ACK, ACK, ACK, ACK
- n(1)PUCCH2
- 0, 1
- ACK, ACK, NACK/DTX, any
- ACK, DTX, DTX, DTX
- n(1)PUCCH2
- 0, 1
- ACK, DTX, DTX, DTX
- ACK, ACK, ACK, ACK
- n(1)PUCCH2
- 1, 0
- ACK, DTX, DTX, DTX
- ACK, ACK, ACK, NACK/DTX
- n(1)PUCCH3
- 1, 1
- ACK, DTX, DTX, DTX
- ACK, ACK, NACK/DTX, any
- n(1)PUCCH0
- 0, 1
- ACK, DTX, DTX, DTX
- ACK, DTX, DTX, DTX
- n(1)PUCCH2
- 1, 0
- wherein n(1)PUCCHi is a PUCCH resource i (0 ≦ i ≦ 3) from among the plurality of PUCCH resources, and a0, a1 denotes transmission bits or constellation.
58 more elements
A user equipment (UE) for transmitting uplink (UL) control information to a base station (BS) in a wireless communication system, the user equipment (UE) comprising:
- a receiver;
- a transmitter;
- and
- a processor configured to control the receiver and the transmitter, wherein the processor is configured to control the receiver to detect 4 first ACK (ACKnowledgement)/NACK (Negative ACK)/DTX (Discontinuous Transmission) responses [x(0), x(1), x(2), x(3)] for 4 downlink (DL) transmissions on a first carrier, where x(i), 0≦i≦3, is an ACK/NACK/DTX response for i-th DL transmission on the first carrier, and detect 4 second ACK/NACK/DTX responses [y(0), y(1), y(2), y(3)] for 4 DL transmissions on a second carrier, where y(i), 0≦i≦3, is an ACK/NACK/DTX response for i-th DL transmission on the second carrier,
- the processor is configured to perform channel selection by selecting one of a plurality of physical uplink control channel (PUCCH) resources and generating transmission bits, based on [x(0), x(1), x(2), x(3)] and [y(0), y(1), y(2), y(3)], and
- the processor is configured to control the transmitter to transmit the generated transmission bits on the selected PUCCH resource,
- wherein when [y(0), y(1), y(2), y(3)] is the same, the same transmission bits are generated for [x(0), x(1), x(2), x(3)]=[ACK, ACK, ACK, ACK] and for [x(0), x(1), x(2), x(3)]=[ACK, DTX, DTX, DTX].
4 more elements
A base station (BS) for receiving uplink (UL) control information from a user equipment (UE) in a wireless communication system, the base station (BS) comprising:
- a receiver;
- a transmitter;
- and
- a processor configured to control the receiver and the transmitter, wherein the processor is configured to control the transmitter to transmit a first carrier and a second carrier to the user equipment (UE), and control the receiver to receive transmission bits on one of a plurality of physical uplink control channel (PUCCH) resources, the processor is configured to determine, based on the transmission bits and the PUCCH resource on which the transmission bits are received, first ACK (ACKnowledgement)/NACK (Negative ACK)/DTX (Discontinuous Transmission) responses [x(0), x(1), x(2), x(3)] for the first carrier, where x(i) is an ACK/NACK/DTX response for i-th DL transmission on the first carrier, and second ACK/NACK/DTX responses [y(0), y(1), y(2), y(3)] for the second carrier, where y(i) is an ACK/NACK/DTX response for i-th DL transmission on the second carrier, and
- the processor is configured to determine the first ACK/NACK/DTX responses and the second ACK/NACK/DTX responses using a mapping table, wherein the mapping table includes mapping relationship shown in the following table:
- TABLE
- ACK/NACK/DTX responses
- ACK/NACK/DTX responses
- PUCCH
- for primary carrier
- for secondary carrier
- resource
- a0, a1
- ACK, ACK, ACK, ACK
- ACK, ACK, ACK, ACK
- n(1)PUCCH2
- 1, 0
- ACK, ACK, ACK, ACK
- ACK, ACK, ACK, NACK/DTX
- n(1)PUCCH3
- 1, 1
- ACK, ACK, ACK, ACK
- ACK, ACK, NACK/DTX, any
- n(1)PUCCH0
- 0, 1
- ACK, ACK, ACK, ACK
- ACK, DTX, DTX, DTX
- n(1)PUCCH2
- 1, 0
- ACK, ACK, ACK, NACK/DTX
- ACK, ACK, ACK, ACK
- n(1)PUCCH2
- 1, 1
- ACK, ACK, ACK, NACK/DTX
- ACK, DTX, DTX, DTX
- n(1)PUCCH2
- 1, 1
- ACK, ACK, NACK/DTX, any
- ACK, ACK, ACK, ACK
- n(1)PUCCH2
- 0, 1
- ACK, ACK, NACK/DTX, any
- ACK, DTX, DTX, DTX
- n(1)PUCCH2
- 0, 1
- ACK, DTX, DTX, DTX
- ACK, ACK, ACK, ACK
- n(1)PUCCH2
- 1, 0
- ACK, DTX, DTX, DTX
- ACK, ACK, ACK, NACK/DTX
- n(1)PUCCH3
- 1, 1
- ACK, DTX, DTX, DTX
- ACK, ACK, NACK/DTX, any
- n(1)PUCCH0
- 0, 1
- ACK, DTX, DTX, DTX
- ACK, DTX, DTX, DTX
- n(1)PUCCH2
- 1, 0
- wherein n(1)PUCCHi is a PUCCH resource i (0 ≦ i ≦ 3) from among the plurality of PUCCH resources, and a0, a1 indicates transmission bits or constellation.
59 more elements
Dependencies are inferred from the claim text.