Method for indicating and determining listen-before-talk parameters, base station and user equipment

The user equipment of claim 18, wherein

• the subset is formed by excluding conflict combinations of possible parameter values of the LBT type, the LBT priority, and the PUSCH start position, from the universal set.

The user equipment of claim 18, wherein

• the subset is formed based on a usage probability of combinations of possible parameter values of the LBT type, the LBT priority, and the PUSCH start position.

A method for determining a parameter value of listen-before-talk LBT parameters in a user equipment, comprising:

• receiving downlink control information, the downlink control information including an index for joint indication of the LBT parameters, the LBT parameters including an LBT type, an LBT priority, and a physical uplink shared channel PUSCH start position;
• and
• determining a parameter value of the LBT parameters according to the index and based on a subset of a universal set formed by combinations of possible parameter values of the respective LBT parameters.

A user equipment for determining a parameter value of Listen-Before-Talk LBT parameters, the user equipment comprising:

• a receiving unit configured to receive downlink control information, the downlink control information including an index for joint indication of the LBT parameters, the LBT parameters including an LBT type, an LBT priority, and a physical uplink shared channel PUSCH start position;
• and
• a determining unit configured to determine a parameter value of the LBT parameters according to the index and based on a subset of a universal set formed by combinations of possible parameter values of the respective LBT parameters.