Terminal device, base station device, communication method, and integrated circuit
A terminal device is provided such that in a case that closed-loop UE transmit antenna selection is configured, a bit sequence is given by scrambling CRC parity bits with an RNTI and an antenna selection mask, in a case that the number of the CRC parity bits is a first value, a first transmit antenna port is given by a first antenna selection mask, and in a case that the number of the CRC parity bits is a second value, the first transmit antenna port is given by a second antenna selection mask that is different from the first antenna selection mask.
1. A terminal device comprising:
receiving circuitry configured to receive on a physical downlink control channel (PDCCH), from a base station device, a bit sequence <c 0 , . . . , c A+L−1 >,
decoding circuitry configured to perform a Cyclic Redundancy Check (CRC) for the bit sequence <c 0 , . . . , c A+L−1 >, the decoding circuitry being further configured to detect downlink control information, and
transmitting circuitry configured to perform a transmission on a physical uplink shared channel (PUSCH) scheduled by the downlink control information, wherein
the bit sequence <c 0 , . . . , c A+L−1 > is given by:
c k =b k for k=0, 1, 2, . . . , A+7,
c k =(b k +x rnti,k-A-8 ) mod 2 for k=A+8, A+9, A+10, . . . , A+23,
<x rnti,0 , x rnti,1 , . . . , x rnti,15 > is a Cell-Radio Network Temporary Identifier (C-RNTI),
the b k is given by:
b k =a k for k=0, 1, 2, . . . , A−1,
b k =p k-A for k=A, A+1, A+2, . . . , A+L−1,
a bit sequence <a 0 , . . . , a A−1 > is the downlink control information,
A is a payload size of the downlink control information,
a bit sequence <p 0 , . . . , p L−1 > is parity bits for the CRC, and
L is a number of the parity bits for the CRC, which is 24.
2. The terminal device according to claim 1 , wherein
the PUSCH is used for an uplink shared channel (UL-SCH) transmission.
3. A base station device comprising:
encoding circuitry configured to generate a bit sequence <c 0 , . . . , c A+L−1 >, a Cyclic Redundancy Check (CRC) being applied to the bit sequence <c 0 , . . . , c A+L−1 >,
transmitting circuitry configured to transmit on a physical downlink control channel (PDCCH), to a terminal device, the bit sequence <c 0 , . . . , c A+L−1 >, and
receiving circuitry configured to perform a reception on a physical uplink shared channel (PUSCH) scheduled by a downlink control information, wherein
the bit sequence <c 0 , . . . , c A+L−1 > is given by:
c k =b k for k=0, 1, 2, . . . , A+7,
c k =(b k +x rnti,k-A-8 ) mod 2 for k=A+8, A+9, A+10, . . . , A+23,
<x rnti,0 , x rnti,1 , . . . , x rnti,15 > is a Cell-Radio Network Temporary Identifier (C-RNTI),
the b k is given by:
b k =a k for k=0, 1, 2, . . . , A−1,
b k =p k-A for k=A, A+1, A+2, . . . , A+L−1,
a bit sequence <a 0 , . . . , a A−1 > is the downlink control information,
A is a payload size of the downlink control information,
a bit sequence <p 0 , . . . , p L−1 > is parity bits for the CRC, and
L is a number of the parity bits for the CRC, which is 24.
4. The base station device according to claim 3 , wherein
the PUSCH is used for an uplink shared channel (UL-SCH) reception.
5. A method of a terminal device, comprising:
receiving on a physical downlink control channel (PDCCH), from a base station device, a bit sequence <c 0 , . . . , c A+L−1 >,
performing a Cyclic Redundancy Check (CRC) for the bit sequence <c 0 , . . . , c A+L−1 >,
detecting downlink control information, and
performing a transmission on a physical uplink shared channel (PUSCH) scheduled by the downlink control information, wherein
the bit sequence <c 0 , . . . , c A+L−1 > is given by:
c k =b k for k=0, 1, 2, . . . , A+7,
c k =(b k +x rnti,k-A-8 ) mod for k=A+8, A+9, A+10, . . . , , A+23,
<x rnti,0 , x rnti,1 , . . . , x rnti,15 > is a Cell-Radio Network Temporary Identifier (C-RNTI),
the b k is given by:
b k =a k for k=0, 1, 2, . . . , A−1,
b k =p k-A for k=A, A+1, A+2, . . . , A+L−1,
a bit sequence <a 0 , . . . , a A−1 > is the downlink control information,
A is a payload size of the downlink control information,
a bit sequence <p 0 , . . . , p L−1 > is parity bits for the CRC, and
L is a number of the parity bits for the CRC, which is 24.
6. The method according to claim 5 , wherein
the PUSCH is used for an uplink shared channel (UL-SCH) transmission.
7. A method of a base station device, comprising:
generating a bit sequence <c 0 , . . . , c A+L−1 >, a Cyclic Redundancy Check (CRC) being applied to the bit sequence <c 0 , . . . , c A+L−1 >,
transmitting on a physical downlink control channel (PDCCH), to a terminal device, the bit sequence <c 0 , . . . , c A+L−1 >, and
performing a reception on a physical uplink shared channel (PUSCH) scheduled by a downlink control information, wherein
the bit sequence <c 0 , . . . , c A+L−1 > is given by:
c k =b k for k=0, 1, 2, . . . , A+7,
c k =(b k +x rnti,k-A-8 ) mod 2 for k=A+8, A+9, A+10, . . . , A+23,
<x rnti,0 , x rnti,1 , . . . , x rnti,15 > is a Cell-Radio Network Temporary Identifier (C-RNTI),
the b k is given by:
b k =a k for k=0, 1, 2, . . . , A−1,
b k =p k-A for k=A, A+1, A+2, . . . , A+L−1,
a bit sequence <a 0 , . . . , a A−1 > is the downlink control information,
A is a payload size of the downlink control information,
a bit sequence <p 0 , . . . , p L−1 > is parity bits for the CRC, and
L is a number of the parity bits for the CRC, which is 24.
8. The method according to claim 7 , wherein
the PUSCH is used for an uplink shared channel (UL-SCH) reception.