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US 10,396,882 B2Granted
Terminal device, base station device, communication method, and integrated circuit
AssigneeSharp Kabushiki Kaisha
InventorsTatsushi Aiba, Shoichi Suzuki, Kazunari Yokomakura, Hiroki Takahashi
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Abstract
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.
Claims4
A terminal device comprising:
- receiving circuitry configured to receive, from a base station device, a bit sequence <c0, . . . , cA+L−1>;
- and
- decoding circuitry configured to perform a Cyclic Redundancy Check (CRC) for the bit sequence <c0, . . . , cA+L−1>, wherein
- the bit sequence <c0, . . . , cA+L−1> is given by:
- ck=bk for k=0, 1, 2, . . . , A+7
- c=(bk+Xrnti,k−A−8)mod 2 for k=A+8, A+9, A+10, . . . , A+23
- <xrnti,0, xrnti,1, . . . , xrnti,15> is a Radio Network Temporary Identifier (RNTI),
- the bk is given by:
- bk=ak for k=0, 1, 2, . . . , A+L−1
- bk=pk−A for k=A, A+1, A+2, . . . , A+L−1
- a bit sequence <a0, . . . , aA−1> is downlink control information,
- A is a payload size of the downlink control information,
- a bit sequence <p0, . . . , pL−1> is parity bits for the CRC,
- L is a number of the parity bits for the CRC, which is 24,
- the decoding circuitry is further configured to detect the downlink control information, and
- the receiving circuitry is further configured to perform a reception on a physical downlink shared channel scheduled by the downlink control information.
13 more elements
A base station device comprising:
- encoding circuitry configured to generate a bit sequence <c0, . . . , cA+L−1>, a Cyclic Redundancy Check (CRC) being applied for the bit sequence <c0, . . . , cA+L−1>;
- and
- transmitting circuitry configured to transmit, to a terminal device, the bit sequence <c0, . . . , cA+L−1>, wherein
- the bit sequence <C0, . . ., cA+L−1> is given by:
- ck=bk for k=0, 1, 2, . . . , A+7
- c=(bk+Xrnti,k−A−8)mod 2 for k=A+8, A+9, A+10, . . . , A+23
- <xrnti,0, xrnti,1, . . . , xrnti,15> is a Radio Network Temporary Identifier (RNTI),
- the bk is given by:
- bk=ak for k=0, 1, 2, . . . , A−1
- bk=pk−A for k=A, A+1, A+2, . . . , A+LL−1
- a bit sequence <a0, . . . , aA−1> is downlink control information,
- A is a payload size of the downlink control information,
- a bit sequence <p0, . . . , pL−1> is parity bits for the CRC,
- L is a number of the parity bits for the CRC, which is 24, and
- the transmitting circuitry is further configured to perform a transmission on a physical downlink shared channel scheduled by the downlink control information.
12 more elements
A method of a terminal device, comprising:
- receiving, from a base station device, a bit sequence <c0, . . . , cA+L−1>;
- and
- performing a Cyclic Redundancy Check (CRC) for the bit sequence <c0, . . . , cA+L−1>, wherein
- the bit sequence <c0, . . . , cA+L−1> is given by:
- ck=bk for k=0, 1, 2, . . . , A+7
- c=(bk+Xrnti,k−A−8)mod 2 for k=A+8, A+9, A+10, . . . , A+23
- <xrnti,0, xrnti,1, . . . , xrnti,15> is a Radio Network Temporary Identifier (RNTI),
- the bk is given by:
- bk=ak for k=0, 1, 2, . . . , A−1
- bk=pk−A for k=A, A+1, A+2, . . . , A+L−1
- a bit sequence <a0, . . . , aA−1> is downlink control information,
- A is a payload size of the downlink control information,
- a bit sequence <p0, . . . , pL−1> is parity bits for the CRC,
- L is a number of the parity bits for the CRC, which is 24,
- detecting the downlink control information, and
- performing a reception on a physical downlink shared channel scheduled by the downlink control information.
13 more elements
A method of a base station device comprising:
- generating a bit sequence <c0, . . . , cA+L−1>, a Cyclic Redundancy Check (CRC) being applied for the bit sequence <c0, . . . , c>cA+L−1>;
- and
- transmitting, to a terminal device, the bit sequence <c0, . . . , cA+L−1>, wherein
- the bit sequence <c0, . . . , cA+L−1> is given by:
- ck=bk for k=0, 1, 2, . . . , A+7
- c=(bk+Xrnti,k−A−8)mod 2 for k=A+8, A+9, A+10, . . . , A+23
- <xrnti,0, xrnti,1, . . . , xrnti,15> is a Radio Network Temporary Identifier (RNTI),
- the bk is given by:
- bk=ak for k=0, 1, 2, . . . , A−1
- bk=pk−A for k=A, A+1, A+2, . . . , A+L−1
- a bit sequence <a0, . . . , aA−1> is downlink control information,
- A is a payload size of the downlink control information,
- a bit sequence <p0, . . . , pL−1> is parity bits for the CRC, and
- L is a number of the parity bits for the CRC, which is 24, and
- performing a transmission on a physical downlink shared channel scheduled by the downlink control information.
12 more elements
Dependencies are inferred from the claim text.