Terminal and communication method
A terminal includes: a transmission unit configured to transmit a plurality of first signals including a synchronization signal and a broadcast channel to a first terminal by applying different beams to the plurality of first signals; a reception unit configured to receive a second signal corresponding to at least one of the plurality of first signals by using a parameter corresponding to a beam that is applied to one of the first signals; and a control unit configured to establish an RRC (Radio Resource Control) connection with the first terminal according to transmission and reception using the parameter.
1 . A terminal comprising:
a transmitter configured to transmit a plurality of first signals including a synchronization signal and a broadcast channel to a first terminal by applying different beams to the plurality of first signals;
a receiver configured to receive a second signal corresponding to at least one of the plurality of first signals by using a parameter corresponding to a beam that is applied to one of the first signals; and
a processor configured to establish an RRC (Radio Resource Control) connection with the first terminal according to transmission and reception using the parameter,
wherein a channel for transmission and reception of the second signal is a feedback channel of a sidelink, and a frequency of a resource of the feedback channel and a cyclic shift of the feedback channel are determined based on an index of the synchronization signal and the broadcast channel.
2 . The communication apparatus according to claim 1 , wherein the parameter is one of a beam, an antenna port, a codebook, a TCI state (Transmission configuration indicator-State), a QCL assumption (Quasi Co Location assumption), a reference signal, or an antenna pan.
3 . The communication apparatus according to claim 2 , wherein
the transmitter changes the parameter for each of one or plurality of transmission occasions in the plurality of transmission occasions in each of transmission periods of the first signals.
4 . The communication apparatus according to claim 2 , wherein
the receiver changes the parameter for each reception occasion in a plurality of reception occasions in each of transmission periods of the second signals received from the first terminal.
5 . The communication apparatus according to claim 4 , wherein
the transmitter transmits a control channel and a shared channel by using the parameter corresponding to the beam applied to the first signal.
6 . A communication method performed by a terminal, the communication method comprising:
transmitting a plurality of first signals including a synchronization signal and a broadcast channel to a first terminal by applying different beams to the plurality of first signals;
receiving a second signal corresponding to at least one of the plurality of first signals by using a parameter corresponding to a beam that is applied to one of the first signals; and
establishing an RRC (Radio Resource Control) connection with the first terminal according to transmission and reception using the parameter,
wherein a channel for transmission and reception of the second signal is a feedback channel of a sidelink, and a frequency of a resource of the feedback channel and a cyclic shift of the feedback channel are determined based on an index of the synchronization signal and the broadcast channel.