Terminal apparatus, base station apparatus, and communication method
Efficient downlink transmission is implemented. A terminal apparatus includes: a receiver configured to receive a sequence of bits in a physical downlink control channel, wherein the sequence of bits is scrambled with a scrambling sequence initialized by c init , the c init is given based at least on N ID and N RNTI , the N ID is given based at least on a higher layer parameter Control-scrambling-Identity in a case that the higher layer parameter Control-scrambling-Identity is configured and the N RNTI is given based at least on a Cell-Radio Network Temporary Identifier (C-RNTI), and the N ID is given based at least on a physical layer cell identity in a case that the higher layer parameter Control-scrambling-Identity is configured and the N RNTI is not given based on the C-RNTI.
1. A terminal device comprising:
reception circuitry configured to and/or programmed to receive a sequence of bits on a physical downlink control channel; and
decoding circuitry configured to and/or programmed to decode the sequence of bits, wherein
the sequence of bits is scrambled by a scrambling sequence initialized by a c init ,
the C inti is given at least based on a N ID and a N RNTI ,
the N ID is set at least based on a higher layer parameter in a case that the higher layer parameter is configured and the N RNTI is given at least based on a cell radio network temporary identifier (C-RNTI), and
the N ID is set at least based on a physical layer cell identity in a case that the higher layer parameter is configured and the N RNTI is not given based on the C-RNTI.
2. A base station device comprising:
transmission circuitry configured to and/or programmed to transmit a sequence of bits on a physical downlink control channel; and
coding circuitry configured to and/or programmed to code the sequence of bits, wherein
the sequence of bits is scrambled by a scrambling sequence initialized by a c init ,
the C inti ; is given at least based on a N ID and a N RNTI ,
the N ID is set at least based on a higher layer parameter in a case that the higher layer parameter is configured and the N RNTI is given at least based on a cell radio network temporary identifier (C-RNTI), and
the N ID is set at least based on a physical layer cell identity in a case that the higher layer parameter is configured and the N RNTI is not given based on the C-RNTI.
3. A communication method used by a terminal device, the communication method comprising:
receiving a sequence of bits on a physical downlink control channel; and
decoding the sequence of bits, wherein
the sequence of bits is scrambled by a scrambling sequence initialized by a c init ,
the C inti ; is given at least based on a N ID and a N RNTI ,
the N ID is set at least based on a higher layer parameter in a case that the higher layer parameter is configured and the N RNTI is given at least based on a cell radio network temporary identifier (C-RNTI), and
the N ID is set at least based on a physical layer cell identity in a case that the higher layer parameter is configured and the N RNTI is not given based on the C-RNTI.
4. A communication method used by a base station device, the communication method comprising:
coding a sequence of bits; and
transmitting the sequence of bits on a physical downlink control channel, wherein
the sequence of bits is scrambled by a scrambling sequence initialized by a c init ,
the C inti ; is given at least based on a N ID and a N RNTI ,
the N ID is set at least based on a higher layer parameter in a case that the higher layer parameter is configured and the N RNTI is given at least based on a cell radio network temporary identifier (C-RNTI), and
the N ID is set at least based on a physical layer cell identity in a case that the higher layer parameter is configured and the N RNTI is not given based on the C-RNTI.