Terminal, radio communication method, and base station
A terminal according to one aspect of the present disclosure includes: a control section that determines a quasi-co-located (QCL) parameter for downlink, when spatial relation information and path-loss reference signal information for uplink transmission are not provided and default spatial relation and path-loss reference signal enabling information for the uplink transmission is provided, in a case where a plurality of different TCI states mapped to a transmission configuration indication (TCI) code point are not provided; and a transmitting section that transmits the uplink transmission by using the QCL parameter. According to one aspect of the present disclosure, a spatial relation can be appropriately determined.
1. A terminal comprising:
a processor that, when multiple different transmission configuration indication (TCI) states mapped to a TCI codepoint are not provided, if spatial relation information and pathloss reference signal information for uplink transmission are not provided and enabling information for a default spatial relation and a pathloss reference signal for the uplink transmission is provided, determines a downlink quasi-co-location (QCL) parameter; and
a transmitter that transmits the uplink transmission by using the QCL parameter.
2. A terminal comprising:
a processor that, when different values of a control resource set (CORESET) pool index in CORESET information are not provided, if spatial relation information and pathloss reference signal information for uplink transmission are not provided and enabling information for a default spatial relation and a pathloss reference signal for the uplink transmission is provided, determines a downlink quasi-co-location (QCL) parameter; and
a transmitter that transmits the uplink transmission by using the QCL parameter.
3. The terminal according to claim 1 , wherein the QCL parameter is based on either one of a TCI state of a CORESET with a lowest index within an active downlink bandwidth part (BWP) and an active TCI state with a lowest ID among active TCI states for a physical downlink shared channel.
4. The terminal according to claim 2 , wherein the QCL parameter is based on either one of a TCI state of a CORESET with a lowest index within an active downlink bandwidth part (BWP) and an active TCI state with a lowest ID among active TCI states for a physical downlink shared channel.
5. A radio communication method for a terminal, comprising:
when multiple different transmission configuration indication (TCI) states mapped to a TCI codepoint are not provided, if spatial relation information and pathloss reference signal information for uplink transmission are not provided and enabling information for a default spatial relation and a pathloss reference signal for the uplink transmission is provided, determining a downlink quasi-co-location (QCL) parameter; and
transmitting the uplink transmission by using the QCL parameter.
6. A base station comprising:
a processor that, when multiple different transmission configuration indication (TCI) states mapped to a TCI codepoint are not provided, if spatial relation information and pathloss reference signal information for uplink transmission are not provided and enabling information for a default spatial relation and a pathloss reference signal for the uplink transmission is provided, determines a downlink quasi-co-location (QCL) parameter; and
a receiver that receives the uplink transmission transmitted by using the QCL parameter.
7. A system comprising a terminal and a base station, wherein
the terminal comprises:
a processor that, when multiple different transmission configuration indication (TCI) states mapped to a TCI codepoint are not provided, if spatial relation information and pathloss reference signal information for uplink transmission are not provided and enabling information for a default spatial relation and a pathloss reference signal for the uplink transmission is provided, determines a downlink quasi-co-location (QCL) parameter; and
a transmitter that transmits the uplink transmission by using the QCL parameter, and
the base station comprises:
a receiver that receives the uplink transmission.